thomas5
Posts: 4
Joined: Sun Oct 13, 2019 12:51 am

a

Sun Oct 13, 2019 12:57 am

a
Last edited by thomas5 on Fri Sep 04, 2020 7:03 am, edited 1 time in total.

pcmanbob
Posts: 9738
Joined: Fri May 31, 2013 9:28 pm
Location: Mansfield UK

Re: Rpi4 Not Booting, Red & Green LED constantly on ( no flash)

Sun Oct 13, 2019 10:23 am

Hi.

You did not read the not booting sticky very well.

Not blinking four times with nothing but the power connected (and no SD-card) implies that the bootloader is not working correctly and should be reinstalled using recovery.bin. see https://www.raspberrypi.org/documentati ... teeprom.md
if after recovery your PI still doesn't blink the ACT LED, then you can assume you somehow managed to blow up your PI, The common pitfalls sticky in beginners, (post #27) describes things that can lead to the destruction of your RPI, for example changing breadboard wiring without turning the RPI off first.
relevant documentation page : https://www.raspberrypi.org/documentati ... teeprom.md
We want information… information… information........................no information no help
The use of crystal balls & mind reading are not supported

thomas5
Posts: 4
Joined: Sun Oct 13, 2019 12:51 am

a

Mon Oct 14, 2019 1:24 am

a
Last edited by thomas5 on Fri Sep 04, 2020 7:04 am, edited 2 times in total.

pcmanbob
Posts: 9738
Joined: Fri May 31, 2013 9:28 pm
Location: Mansfield UK

Re: Rpi4 Not Booting, Red & Green LED constantly on ( no flash)

Mon Oct 14, 2019 8:18 am

Did you follow the instructions and attempt to reload the EEPROM ?
Recovery

If your Raspberry Pi 4 will not boot, it is possible that the SPI EEPROM has become corrupted.

To check, remove the SD card, disconnect the device from power, then reconnect it. If the green LED does not flash, you will need to reprogram the EEPROM:

Download the bootloader
SHA-256: 2c5610682edfa2c3a2a41832c687559d8f091b9e48abaeb8577cca2a0cc81839
Extract it to an empty FAT-formatted SD card and insert it into your Raspberry Pi 4
Connect the power and wait for the green LED to flash quickly
https://www.raspberrypi.org/downloads/
We want information… information… information........................no information no help
The use of crystal balls & mind reading are not supported

thomas5
Posts: 4
Joined: Sun Oct 13, 2019 12:51 am

a

Thu Oct 17, 2019 1:02 am

a
Last edited by thomas5 on Fri Sep 04, 2020 7:04 am, edited 2 times in total.

pcmanbob
Posts: 9738
Joined: Fri May 31, 2013 9:28 pm
Location: Mansfield UK

Re: Rpi4 Not Booting, Red & Green LED constantly on ( no flash)

Thu Oct 17, 2019 1:08 am

Your problem may be related to the one in this thread : https://www.raspberrypi.org/forums/view ... 3&t=253776

which suggests your pi is broken , you might try talking to you supplier to see if they will replace it under warranty.
We want information… information… information........................no information no help
The use of crystal balls & mind reading are not supported

thomas5
Posts: 4
Joined: Sun Oct 13, 2019 12:51 am

a

Thu Oct 17, 2019 3:53 pm

a
Last edited by thomas5 on Fri Sep 04, 2020 7:04 am, edited 2 times in total.

pcmanbob
Posts: 9738
Joined: Fri May 31, 2013 9:28 pm
Location: Mansfield UK

Re: Rpi4 Not Booting, Red & Green LED constantly on ( no flash)

Thu Oct 17, 2019 6:40 pm

I have no idea why this is had happened and I doubt anyone else would know , unless some one from the foundation has any idea and is willing to talk about it.

Did you have anything connected to the gpio ? That is the most common way a pi is damaged.
We want information… information… information........................no information no help
The use of crystal balls & mind reading are not supported

Return to “Troubleshooting”