Raspberry Pi Forums

I just bought a new RPI zero wireless and like the low profile a lot. I had it all setup and then messed up the bluetooth audio. I think it got messed up when I used rpi-update. It warned me that it was about to upgrade from the 4.4 branch to the 4.9 but it made a backup. How do I restore this backup?

When I say messed up, I mean I cannot hear any audio in 2 different Bluetooth speakers streaming internet radio or playing a local mp3. I see the program playing in an ssh session and have checked that audio is turned up in alsamixer and it's playing using pulseaudio. Plus it connects just fine to my BT speakers. I just don't hear anything. I have no idea what could have caused that since it was working fine yesterday and I'm pretty sure I did the rpi-update last night.

It's running Raspbian Jessie and apt-get update and upgrade has been done.

Marty

This might help:
Linux RaspberryPiZeroW 4.9.19+ #983 Thu Mar 30 14:42:18 BST 2017 armv6l GNU/Linux

I don't know, but I'm using 4.9.19-v7+ on my Pi3B with Raspbian Stretch and my analog audio is mostly working fine through PulseAudio or direct to ALSA. A2DP audio from Android and iOS is working well for me. The only issues I sometimes have is out of sync audio with video or games using OpenAL, lots of extra weird noise when I use audio_pwm_mode=2 and sometimes extra noise when using shairport-sync.

supra wrote:@ LinuxHippy2002
Just select no. You will get back to 4.4.xx Yes, it will put you to 4.9.x instead of 4.4.xx

Select no after what?

You could try sudo apt. --reinstall install raspberry-kernel

I'm not sure about the package name, just something like that. Try apt search raspberry to find the name. There is a package containing the 4.4 kernel, you could reinstall it.

allfox wrote:You could try sudo apt. --reinstall install raspberry-kernel

I'm not sure about the package name, just something like that. Try apt search raspberry to find the name. There is a package containing the 4.4 kernel, you could reinstall it.

Yeah^, I think that should work. Something like:

allfox wrote:You could try sudo apt. --reinstall install raspberry-kernel

I'm not sure about the package name, just something like that. Try apt search raspberry to find the name. There is a package containing the 4.4 kernel, you could reinstall it.

This worked-thank you, thank you!! Here's specifically what I did:
raspberry kernel in output was raspberrypi-kernel/stable

Then do this:
This will take a while and u will see:

Building dependency tree
Reading state information... Done
Selected version '1.20170303-1' (Raspberry Pi Foundation:stable [armhf]) for 'raspberrypi-kernel'
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 30.3 MB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.raspberrypi.org/debian/ jessie/main raspberrypi-kernel armhf 1.20170303-1 [30.3 MB]
Fetched 30.3 MB in 17s (1,729 kB/s)
(Reading database ... 117017 files and directories currently installed.)
Preparing to unpack .../raspberrypi-kernel_1.20170303-1_armhf.deb ...
Adding 'diversion of /boot/bcm2708-rpi-0-w.dtb to /usr/share/rpikernelhack/bcm2708-rpi-0-w.dtb by rpikernelhack'
Adding 'diversion of /boot/bcm2708-rpi-b-plus.dtb to /usr/share/rpikernelhack/bcm2708-rpi-b-plus.dtb by rpikernelhack'
Adding 'diversion of /boot/bcm2708-rpi-b.dtb to /usr/share/rpikernelhack/bcm2708-rpi-b.dtb by rpikernelhack'
Adding 'diversion of /boot/bcm2708-rpi-cm.dtb to /usr/share/rpikernelhack/bcm2708-rpi-cm.dtb by rpikernelhack'
Adding 'diversion of /boot/bcm2709-rpi-2-b.dtb to /usr/share/rpikernelhack/bcm2709-rpi-2-b.dtb by rpikernelhack'
Adding 'diversion of /boot/bcm2710-rpi-3-b.dtb to /usr/share/rpikernelhack/bcm2710-rpi-3-b.dtb by rpikernelhack'
Adding 'diversion of /boot/bcm2710-rpi-cm3.dtb to /usr/share/rpikernelhack/bcm2710-rpi-cm3.dtb by rpikernelhack'
Adding 'diversion of /boot/kernel.img to /usr/share/rpikernelhack/kernel.img by rpikernelhack'
Adding 'diversion of /boot/kernel7.img to /usr/share/rpikernelhack/kernel7.img by rpikernelhack'
Adding 'diversion of /boot/COPYING.linux to /usr/share/rpikernelhack/COPYING.linux by rpikernelhack'
Adding 'diversion of /boot/overlays/README to /usr/share/rpikernelhack/overlays/README by rpikernelhack'
Adding 'diversion of /boot/overlays/adau1977-adc.dtbo to /usr/share/rpikernelhack/overlays/adau1977-adc.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/ads1015.dtbo to /usr/share/rpikernelhack/overlays/ads1015.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/ads7846.dtbo to /usr/share/rpikernelhack/overlays/ads7846.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/akkordion-iqdacplus.dtbo to /usr/share/rpikernelhack/overlays/akkordion-iqdacplus.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/allo-piano-dac-pcm512x-audio.dtbo to /usr/share/rpikernelhack/overlays/allo-piano-dac-pcm512x-audio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/at86rf233.dtbo to /usr/share/rpikernelhack/overlays/at86rf233.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/audioinjector-wm8731-audio.dtbo to /usr/share/rpikernelhack/overlays/audioinjector-wm8731-audio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/audremap.dtbo to /usr/share/rpikernelhack/overlays/audremap.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/bmp085_i2c-sensor.dtbo to /usr/share/rpikernelhack/overlays/bmp085_i2c-sensor.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/dht11.dtbo to /usr/share/rpikernelhack/overlays/dht11.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/dionaudio-loco.dtbo to /usr/share/rpikernelhack/overlays/dionaudio-loco.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/dpi18.dtbo to /usr/share/rpikernelhack/overlays/dpi18.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/dpi24.dtbo to /usr/share/rpikernelhack/overlays/dpi24.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/dwc-otg.dtbo to /usr/share/rpikernelhack/overlays/dwc-otg.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/dwc2.dtbo to /usr/share/rpikernelhack/overlays/dwc2.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/enc28j60-spi2.dtbo to /usr/share/rpikernelhack/overlays/enc28j60-spi2.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/enc28j60.dtbo to /usr/share/rpikernelhack/overlays/enc28j60.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/gpio-ir.dtbo to /usr/share/rpikernelhack/overlays/gpio-ir.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/gpio-poweroff.dtbo to /usr/share/rpikernelhack/overlays/gpio-poweroff.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hifiberry-amp.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-amp.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hifiberry-dac.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-dac.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hifiberry-dacplus.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-dacplus.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hifiberry-digi-pro.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-digi-pro.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hifiberry-digi.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-digi.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hy28a.dtbo to /usr/share/rpikernelhack/overlays/hy28a.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/hy28b.dtbo to /usr/share/rpikernelhack/overlays/hy28b.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c-gpio.dtbo to /usr/share/rpikernelhack/overlays/i2c-gpio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c-mux.dtbo to /usr/share/rpikernelhack/overlays/i2c-mux.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c-pwm-pca9685a.dtbo to /usr/share/rpikernelhack/overlays/i2c-pwm-pca9685a.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c-rtc.dtbo to /usr/share/rpikernelhack/overlays/i2c-rtc.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c-sensor.dtbo to /usr/share/rpikernelhack/overlays/i2c-sensor.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c0-bcm2708.dtbo to /usr/share/rpikernelhack/overlays/i2c0-bcm2708.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2c1-bcm2708.dtbo to /usr/share/rpikernelhack/overlays/i2c1-bcm2708.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2s-gpio28-31.dtbo to /usr/share/rpikernelhack/overlays/i2s-gpio28-31.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/i2s-mmap.dtbo to /usr/share/rpikernelhack/overlays/i2s-mmap.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/iqaudio-dac.dtbo to /usr/share/rpikernelhack/overlays/iqaudio-dac.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/iqaudio-dacplus.dtbo to /usr/share/rpikernelhack/overlays/iqaudio-dacplus.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/iqaudio-digi-wm8804-audio.dtbo to /usr/share/rpikernelhack/overlays/iqaudio-digi-wm8804-audio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/justboom-dac.dtbo to /usr/share/rpikernelhack/overlays/justboom-dac.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/justboom-digi.dtbo to /usr/share/rpikernelhack/overlays/justboom-digi.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/lirc-rpi.dtbo to /usr/share/rpikernelhack/overlays/lirc-rpi.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mcp23017.dtbo to /usr/share/rpikernelhack/overlays/mcp23017.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mcp23s17.dtbo to /usr/share/rpikernelhack/overlays/mcp23s17.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mcp2515-can0.dtbo to /usr/share/rpikernelhack/overlays/mcp2515-can0.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mcp2515-can1.dtbo to /usr/share/rpikernelhack/overlays/mcp2515-can1.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mcp3008.dtbo to /usr/share/rpikernelhack/overlays/mcp3008.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mmc.dtbo to /usr/share/rpikernelhack/overlays/mmc.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/mz61581.dtbo to /usr/share/rpikernelhack/overlays/mz61581.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pi3-act-led.dtbo to /usr/share/rpikernelhack/overlays/pi3-act-led.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pi3-disable-bt.dtbo to /usr/share/rpikernelhack/overlays/pi3-disable-bt.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pi3-disable-wifi.dtbo to /usr/share/rpikernelhack/overlays/pi3-disable-wifi.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pi3-miniuart-bt.dtbo to /usr/share/rpikernelhack/overlays/pi3-miniuart-bt.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/piscreen.dtbo to /usr/share/rpikernelhack/overlays/piscreen.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/piscreen2r.dtbo to /usr/share/rpikernelhack/overlays/piscreen2r.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pisound.dtbo to /usr/share/rpikernelhack/overlays/pisound.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pitft22.dtbo to /usr/share/rpikernelhack/overlays/pitft22.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pitft28-capacitive.dtbo to /usr/share/rpikernelhack/overlays/pitft28-capacitive.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pitft28-resistive.dtbo to /usr/share/rpikernelhack/overlays/pitft28-resistive.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pitft35-resistive.dtbo to /usr/share/rpikernelhack/overlays/pitft35-resistive.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pps-gpio.dtbo to /usr/share/rpikernelhack/overlays/pps-gpio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pwm-2chan.dtbo to /usr/share/rpikernelhack/overlays/pwm-2chan.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/pwm.dtbo to /usr/share/rpikernelhack/overlays/pwm.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/qca7000.dtbo to /usr/share/rpikernelhack/overlays/qca7000.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/raspidac3.dtbo to /usr/share/rpikernelhack/overlays/raspidac3.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rpi-backlight.dtbo to /usr/share/rpikernelhack/overlays/rpi-backlight.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rpi-dac.dtbo to /usr/share/rpikernelhack/overlays/rpi-dac.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rpi-display.dtbo to /usr/share/rpikernelhack/overlays/rpi-display.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rpi-ft5406.dtbo to /usr/share/rpikernelhack/overlays/rpi-ft5406.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rpi-proto.dtbo to /usr/share/rpikernelhack/overlays/rpi-proto.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rpi-sense.dtbo to /usr/share/rpikernelhack/overlays/rpi-sense.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/rra-digidac1-wm8741-audio.dtbo to /usr/share/rpikernelhack/overlays/rra-digidac1-wm8741-audio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/sc16is750-i2c.dtbo to /usr/share/rpikernelhack/overlays/sc16is750-i2c.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/sc16is752-spi1.dtbo to /usr/share/rpikernelhack/overlays/sc16is752-spi1.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/sdhost.dtbo to /usr/share/rpikernelhack/overlays/sdhost.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/sdio-1bit.dtbo to /usr/share/rpikernelhack/overlays/sdio-1bit.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/sdio.dtbo to /usr/share/rpikernelhack/overlays/sdio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/sdtweak.dtbo to /usr/share/rpikernelhack/overlays/sdtweak.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/smi-dev.dtbo to /usr/share/rpikernelhack/overlays/smi-dev.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/smi-nand.dtbo to /usr/share/rpikernelhack/overlays/smi-nand.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/smi.dtbo to /usr/share/rpikernelhack/overlays/smi.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi-gpio35-39.dtbo to /usr/share/rpikernelhack/overlays/spi-gpio35-39.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi-rtc.dtbo to /usr/share/rpikernelhack/overlays/spi-rtc.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi0-cs.dtbo to /usr/share/rpikernelhack/overlays/spi0-cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi0-hw-cs.dtbo to /usr/share/rpikernelhack/overlays/spi0-hw-cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi1-1cs.dtbo to /usr/share/rpikernelhack/overlays/spi1-1cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi1-2cs.dtbo to /usr/share/rpikernelhack/overlays/spi1-2cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi1-3cs.dtbo to /usr/share/rpikernelhack/overlays/spi1-3cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi2-1cs.dtbo to /usr/share/rpikernelhack/overlays/spi2-1cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi2-2cs.dtbo to /usr/share/rpikernelhack/overlays/spi2-2cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/spi2-3cs.dtbo to /usr/share/rpikernelhack/overlays/spi2-3cs.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/tinylcd35.dtbo to /usr/share/rpikernelhack/overlays/tinylcd35.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/uart1.dtbo to /usr/share/rpikernelhack/overlays/uart1.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/vc4-fkms-v3d.dtbo to /usr/share/rpikernelhack/overlays/vc4-fkms-v3d.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/vc4-kms-v3d.dtbo to /usr/share/rpikernelhack/overlays/vc4-kms-v3d.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/vga666.dtbo to /usr/share/rpikernelhack/overlays/vga666.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/w1-gpio-pullup.dtbo to /usr/share/rpikernelhack/overlays/w1-gpio-pullup.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/w1-gpio.dtbo to /usr/share/rpikernelhack/overlays/w1-gpio.dtbo by rpikernelhack'
Adding 'diversion of /boot/overlays/wittypi.dtbo to /usr/share/rpikernelhack/overlays/wittypi.dtbo by rpikernelhack'
Unpacking raspberrypi-kernel (1.20170303-1) over (1.20170303-1) ...
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.50+ /boot/kernel.img
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.50-v7+ /boot/kernel7.img
Setting up raspberrypi-kernel (1.20170303-1) ...
Removing 'diversion of /boot/bcm2708-rpi-0-w.dtb to /usr/share/rpikernelhack/bcm2708-rpi-0-w.dtb by rpikernelhack'
Removing 'diversion of /boot/bcm2708-rpi-b-plus.dtb to /usr/share/rpikernelhack/bcm2708-rpi-b-plus.dtb by rpikernelhack'
Removing 'diversion of /boot/bcm2708-rpi-b.dtb to /usr/share/rpikernelhack/bcm2708-rpi-b.dtb by rpikernelhack'
Removing 'diversion of /boot/bcm2708-rpi-cm.dtb to /usr/share/rpikernelhack/bcm2708-rpi-cm.dtb by rpikernelhack'
Removing 'diversion of /boot/bcm2709-rpi-2-b.dtb to /usr/share/rpikernelhack/bcm2709-rpi-2-b.dtb by rpikernelhack'
Removing 'diversion of /boot/bcm2710-rpi-3-b.dtb to /usr/share/rpikernelhack/bcm2710-rpi-3-b.dtb by rpikernelhack'
Removing 'diversion of /boot/bcm2710-rpi-cm3.dtb to /usr/share/rpikernelhack/bcm2710-rpi-cm3.dtb by rpikernelhack'
Removing 'diversion of /boot/kernel.img to /usr/share/rpikernelhack/kernel.img by rpikernelhack'
Removing 'diversion of /boot/kernel7.img to /usr/share/rpikernelhack/kernel7.img by rpikernelhack'
Removing 'diversion of /boot/COPYING.linux to /usr/share/rpikernelhack/COPYING.linux by rpikernelhack'
Removing 'diversion of /boot/overlays/README to /usr/share/rpikernelhack/overlays/README by rpikernelhack'
Removing 'diversion of /boot/overlays/adau1977-adc.dtbo to /usr/share/rpikernelhack/overlays/adau1977-adc.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/ads1015.dtbo to /usr/share/rpikernelhack/overlays/ads1015.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/ads7846.dtbo to /usr/share/rpikernelhack/overlays/ads7846.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/akkordion-iqdacplus.dtbo to /usr/share/rpikernelhack/overlays/akkordion-iqdacplus.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/allo-piano-dac-pcm512x-audio.dtbo to /usr/share/rpikernelhack/overlays/allo-piano-dac-pcm512x-audio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/at86rf233.dtbo to /usr/share/rpikernelhack/overlays/at86rf233.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/audioinjector-wm8731-audio.dtbo to /usr/share/rpikernelhack/overlays/audioinjector-wm8731-audio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/audremap.dtbo to /usr/share/rpikernelhack/overlays/audremap.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/bmp085_i2c-sensor.dtbo to /usr/share/rpikernelhack/overlays/bmp085_i2c-sensor.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/dht11.dtbo to /usr/share/rpikernelhack/overlays/dht11.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/dionaudio-loco.dtbo to /usr/share/rpikernelhack/overlays/dionaudio-loco.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/dpi18.dtbo to /usr/share/rpikernelhack/overlays/dpi18.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/dpi24.dtbo to /usr/share/rpikernelhack/overlays/dpi24.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/dwc-otg.dtbo to /usr/share/rpikernelhack/overlays/dwc-otg.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/dwc2.dtbo to /usr/share/rpikernelhack/overlays/dwc2.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/enc28j60-spi2.dtbo to /usr/share/rpikernelhack/overlays/enc28j60-spi2.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/enc28j60.dtbo to /usr/share/rpikernelhack/overlays/enc28j60.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/gpio-ir.dtbo to /usr/share/rpikernelhack/overlays/gpio-ir.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/gpio-poweroff.dtbo to /usr/share/rpikernelhack/overlays/gpio-poweroff.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hifiberry-amp.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-amp.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hifiberry-dac.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-dac.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hifiberry-dacplus.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-dacplus.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hifiberry-digi-pro.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-digi-pro.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hifiberry-digi.dtbo to /usr/share/rpikernelhack/overlays/hifiberry-digi.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hy28a.dtbo to /usr/share/rpikernelhack/overlays/hy28a.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/hy28b.dtbo to /usr/share/rpikernelhack/overlays/hy28b.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c-gpio.dtbo to /usr/share/rpikernelhack/overlays/i2c-gpio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c-mux.dtbo to /usr/share/rpikernelhack/overlays/i2c-mux.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c-pwm-pca9685a.dtbo to /usr/share/rpikernelhack/overlays/i2c-pwm-pca9685a.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c-rtc.dtbo to /usr/share/rpikernelhack/overlays/i2c-rtc.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c-sensor.dtbo to /usr/share/rpikernelhack/overlays/i2c-sensor.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c0-bcm2708.dtbo to /usr/share/rpikernelhack/overlays/i2c0-bcm2708.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2c1-bcm2708.dtbo to /usr/share/rpikernelhack/overlays/i2c1-bcm2708.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2s-gpio28-31.dtbo to /usr/share/rpikernelhack/overlays/i2s-gpio28-31.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/i2s-mmap.dtbo to /usr/share/rpikernelhack/overlays/i2s-mmap.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/iqaudio-dac.dtbo to /usr/share/rpikernelhack/overlays/iqaudio-dac.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/iqaudio-dacplus.dtbo to /usr/share/rpikernelhack/overlays/iqaudio-dacplus.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/iqaudio-digi-wm8804-audio.dtbo to /usr/share/rpikernelhack/overlays/iqaudio-digi-wm8804-audio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/justboom-dac.dtbo to /usr/share/rpikernelhack/overlays/justboom-dac.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/justboom-digi.dtbo to /usr/share/rpikernelhack/overlays/justboom-digi.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/lirc-rpi.dtbo to /usr/share/rpikernelhack/overlays/lirc-rpi.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mcp23017.dtbo to /usr/share/rpikernelhack/overlays/mcp23017.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mcp23s17.dtbo to /usr/share/rpikernelhack/overlays/mcp23s17.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mcp2515-can0.dtbo to /usr/share/rpikernelhack/overlays/mcp2515-can0.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mcp2515-can1.dtbo to /usr/share/rpikernelhack/overlays/mcp2515-can1.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mcp3008.dtbo to /usr/share/rpikernelhack/overlays/mcp3008.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mmc.dtbo to /usr/share/rpikernelhack/overlays/mmc.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/mz61581.dtbo to /usr/share/rpikernelhack/overlays/mz61581.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pi3-act-led.dtbo to /usr/share/rpikernelhack/overlays/pi3-act-led.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pi3-disable-bt.dtbo to /usr/share/rpikernelhack/overlays/pi3-disable-bt.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pi3-disable-wifi.dtbo to /usr/share/rpikernelhack/overlays/pi3-disable-wifi.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pi3-miniuart-bt.dtbo to /usr/share/rpikernelhack/overlays/pi3-miniuart-bt.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/piscreen.dtbo to /usr/share/rpikernelhack/overlays/piscreen.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/piscreen2r.dtbo to /usr/share/rpikernelhack/overlays/piscreen2r.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pisound.dtbo to /usr/share/rpikernelhack/overlays/pisound.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pitft22.dtbo to /usr/share/rpikernelhack/overlays/pitft22.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pitft28-capacitive.dtbo to /usr/share/rpikernelhack/overlays/pitft28-capacitive.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pitft28-resistive.dtbo to /usr/share/rpikernelhack/overlays/pitft28-resistive.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pitft35-resistive.dtbo to /usr/share/rpikernelhack/overlays/pitft35-resistive.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pps-gpio.dtbo to /usr/share/rpikernelhack/overlays/pps-gpio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pwm-2chan.dtbo to /usr/share/rpikernelhack/overlays/pwm-2chan.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/pwm.dtbo to /usr/share/rpikernelhack/overlays/pwm.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/qca7000.dtbo to /usr/share/rpikernelhack/overlays/qca7000.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/raspidac3.dtbo to /usr/share/rpikernelhack/overlays/raspidac3.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rpi-backlight.dtbo to /usr/share/rpikernelhack/overlays/rpi-backlight.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rpi-dac.dtbo to /usr/share/rpikernelhack/overlays/rpi-dac.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rpi-display.dtbo to /usr/share/rpikernelhack/overlays/rpi-display.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rpi-ft5406.dtbo to /usr/share/rpikernelhack/overlays/rpi-ft5406.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rpi-proto.dtbo to /usr/share/rpikernelhack/overlays/rpi-proto.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rpi-sense.dtbo to /usr/share/rpikernelhack/overlays/rpi-sense.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/rra-digidac1-wm8741-audio.dtbo to /usr/share/rpikernelhack/overlays/rra-digidac1-wm8741-audio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/sc16is750-i2c.dtbo to /usr/share/rpikernelhack/overlays/sc16is750-i2c.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/sc16is752-spi1.dtbo to /usr/share/rpikernelhack/overlays/sc16is752-spi1.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/sdhost.dtbo to /usr/share/rpikernelhack/overlays/sdhost.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/sdio-1bit.dtbo to /usr/share/rpikernelhack/overlays/sdio-1bit.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/sdio.dtbo to /usr/share/rpikernelhack/overlays/sdio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/sdtweak.dtbo to /usr/share/rpikernelhack/overlays/sdtweak.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/smi-dev.dtbo to /usr/share/rpikernelhack/overlays/smi-dev.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/smi-nand.dtbo to /usr/share/rpikernelhack/overlays/smi-nand.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/smi.dtbo to /usr/share/rpikernelhack/overlays/smi.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi-gpio35-39.dtbo to /usr/share/rpikernelhack/overlays/spi-gpio35-39.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi-rtc.dtbo to /usr/share/rpikernelhack/overlays/spi-rtc.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi0-cs.dtbo to /usr/share/rpikernelhack/overlays/spi0-cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi0-hw-cs.dtbo to /usr/share/rpikernelhack/overlays/spi0-hw-cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi1-1cs.dtbo to /usr/share/rpikernelhack/overlays/spi1-1cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi1-2cs.dtbo to /usr/share/rpikernelhack/overlays/spi1-2cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi1-3cs.dtbo to /usr/share/rpikernelhack/overlays/spi1-3cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi2-1cs.dtbo to /usr/share/rpikernelhack/overlays/spi2-1cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi2-2cs.dtbo to /usr/share/rpikernelhack/overlays/spi2-2cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/spi2-3cs.dtbo to /usr/share/rpikernelhack/overlays/spi2-3cs.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/tinylcd35.dtbo to /usr/share/rpikernelhack/overlays/tinylcd35.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/uart1.dtbo to /usr/share/rpikernelhack/overlays/uart1.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/vc4-fkms-v3d.dtbo to /usr/share/rpikernelhack/overlays/vc4-fkms-v3d.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/vc4-kms-v3d.dtbo to /usr/share/rpikernelhack/overlays/vc4-kms-v3d.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/vga666.dtbo to /usr/share/rpikernelhack/overlays/vga666.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/w1-gpio-pullup.dtbo to /usr/share/rpikernelhack/overlays/w1-gpio-pullup.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/w1-gpio.dtbo to /usr/share/rpikernelhack/overlays/w1-gpio.dtbo by rpikernelhack'
Removing 'diversion of /boot/overlays/wittypi.dtbo to /usr/share/rpikernelhack/overlays/wittypi.dtbo by rpikernelhack'
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.50+ /boot/kernel.img
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.50+ /boot/kernel.img
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.50-v7+ /boot/kernel7.img
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.50-v7+ /boot/kernel7.img

When done I followed with:
Then reboot and BT all fixed. I setup pulseaudio to start as system wide process and I imagine it's kernel specific. This is what I followed:

https://github.com/davidedg/NAS-mod-con ... Audio5.txt

It's in fact, the rpi-update would upgrade not only the kernel, but also a lot of stuff which I couldn't name them all, such as /boot/bootcode.bin

So if you want to restore everything, maybe ktb's command line is better.