mob-i-l
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Raspberry Pi 4 B stopped & died suddenly [due to AC adaptor]

Fri Jul 12, 2019 2:41 pm

My brand new Raspberry Pi 4 Model B 4GB RAM from Raspberry Pi 4 Computer Desktop Kit worked excellently for 1 hour and I updated it using sudo apt update and sudo apt dist-upgrade, rebooted and put in the temperature monitor in the panel (about 68 degrees, ambient temperature 25 degrees) and surfed for 34 minutes using Chromium, and then it died (i.e. the screen went into power save) with a snapping sound - probably from the speakers. The Power LED (red) went dim. I pulled out the cable and also the AC adapter and waited, but when I connect it again it doesn't show on the screen and the power LED is just dim.

I have several Pis since 2012 and all still works. This Pi 4 is the first that broke.

I used all the original equipment except for the screen and speakers, but I have used them for several years with my Raspberry Pi 3 and the Pi 3 still works with them. I use an adapter from EU to UK power connector that I have used for several years with another thing and it still works with that thing. The screen uses an HDMI to DVI-D adapter. I don't have any other USB-C equipment, so I can't test if the original Raspberry Pi AC adapter for Pi 4 still works, but my guess is that it's nothing wrong with it. It's probably the power part in the Pi 4 that is broken.

There is usually never any power surges here and and the Pi 3 and Pi 2 next to it was running and were not stopped, so I don't think there has been any power surge. I bought the Raspberry Pi 4 Computer Desktop Kit on The Pi Hut and they shipped it to Sweden so it's rather difficult to return it. It would be good if I could exchange the Pi 4 with your local partner e.g. Electrokit instead of sending it back to the UK by mail. The reason I bought it from UK is that they don't sell Raspberry Pi 4 Computer Desktop Kit here and I preferred the UK keyboard before the US or the other language models, and then I got the UK AC adapter.

I put the microSD card in a USB adapter and plugged it into a USB port of a Raspberry Pi 3 and that was not broken, and all partitions showed in File Manager.

I do have a multimeter so I might measure voltages on the board or on the pins using cables, if that could help.
Last edited by mob-i-l on Sun Jul 14, 2019 6:20 pm, edited 2 times in total.
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wrn
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Re: Raspberry Pi 4 B stopped & died suddenly

Fri Jul 12, 2019 5:50 pm

From what I could read about all the other Pi ( can't find official info about the pi4 leds ) , if the red power led is not up when you plug the power supply unit cable, it means the pi is not getting any power from the unit. See for example : https://elinux.org/R-Pi_Troubleshooting ... on_display

I suppose it may also mean that the power circuits went nuts on the pi, but the most simple explanation seems to be that your power unit is dead, not the pi.

It would be interesting to test with another usb-c power supply, to make sure your pi is damaged or not.

mob-i-l
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Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 8:18 am

Unfortunately I don't have another USB-C AC adapter/power supply - especially not one that could work with Pi4B. I also don't have a micro USB to USB-C adapter. I could buy, but they are a bit expensive in my town.
Have Pi0&1A&1B&1B+&2B&3B&4B w/ Raspbian. Started w/ BASIC on ABC80&ZX81 then Forth, Z80… https://scratch.mit.edu/users/mobluse/ https://github.com/mobluse/ https://twitter.com/mobluse/ https://YouTube.com/MOBiL4u/

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Gavinmc42
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Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 8:33 am

I found some adaptors for about $2 in my local Daiso.
Never noticed them before till I needed them.

You probably don't have a way to test the power supply either.
Pi's are normally pretty reliable, power supplies less so.
Know any other Pi uses close by?

Sacrificing a cable/adaptor to break out the wires so multi-meter can measure things, I done that before.
Test points on the Pi4?
I'm dancing on Rainbows.
Raspberries are not Apples or Oranges

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rpdom
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Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 8:39 am

mob-i-l wrote:
Sat Jul 13, 2019 8:18 am
Unfortunately I don't have another USB-C AC adapter/power supply - especially not one that could work with Pi4B. I also don't have a micro USB to USB-C adapter. I could buy, but they are a bit expensive in my town.
ebay? I picked up a micro USB to USB-C adaptor for about the equivalent of 20 Kronor

mob-i-l
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Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 4:18 pm

Good News! It was only the Raspberry Pi AC ADAPTOR P2219 MODEL: KSA-15E-051300HK (USB-C, MADE IN CAMBODIA) that broke after about 1.5 h updating and surfing and no load except official mouse and keyboard.

Now I use a 2.5 A, 5.0 V power supply that came with a powered USB hub. It has a barrel connector and I have to connect it through the hub to a USB cable with a micro USB B connector connected to an adapter to USB-C. I do get the yellow flash sometimes. So I will order a new official AC adapter.

I use this micro to USB-C adapter that cost 50 kr (SEK) in a local store:
https://www.jula.se/catalog/hem-och-hus ... er-003127/

This is written on the Raspberry Pi 4 Computer Desktop Kit!

Now the CPU is 66 C and ambient temperature 27 C.
Have Pi0&1A&1B&1B+&2B&3B&4B w/ Raspbian. Started w/ BASIC on ABC80&ZX81 then Forth, Z80… https://scratch.mit.edu/users/mobluse/ https://github.com/mobluse/ https://twitter.com/mobluse/ https://YouTube.com/MOBiL4u/

jdb
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 4:24 pm

Good to know the Pi isn't DOA.
mob-i-l wrote:
Sat Jul 13, 2019 4:18 pm
It was only the Raspberry Pi AC ADAPTOR P2219 MODEL: KSA-15E-051300HK (USB-C, MADE IN CAMBODIA) that broke after about 1.5 h updating and surfing and no load except official mouse and keyboard.
That's a bit disappointing. Was the adapter part of the kit?
Rockets are loud.
https://astro-pi.org

wrn
Posts: 19
Joined: Mon Jul 01, 2019 7:24 am

Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 4:34 pm

This is written on the Raspberry Pi 4 Computer Desktop Kit!
Woot ! Glad is turned out this way ;)

mob-i-l
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Re: Raspberry Pi 4 B stopped & died suddenly

Sat Jul 13, 2019 5:03 pm

jdb wrote:
Sat Jul 13, 2019 4:24 pm
Good to know the Pi isn't DOA.
mob-i-l wrote:
Sat Jul 13, 2019 4:18 pm
It was only the Raspberry Pi AC ADAPTOR P2219 MODEL: KSA-15E-051300HK (USB-C, MADE IN CAMBODIA) that broke after about 1.5 h updating and surfing and no load except official mouse and keyboard.
That's a bit disappointing. Was the adapter part of the kit?
Yes, it's from the kit (UK model using adapter to EU)! It did work without the yellow flash the short time it did work.

Now I run with two screens and 128 MB GPU memory.
Have Pi0&1A&1B&1B+&2B&3B&4B w/ Raspbian. Started w/ BASIC on ABC80&ZX81 then Forth, Z80… https://scratch.mit.edu/users/mobluse/ https://github.com/mobluse/ https://twitter.com/mobluse/ https://YouTube.com/MOBiL4u/

mob-i-l
Posts: 273
Joined: Sat Dec 29, 2012 2:45 am
Location: Lund, Skåne/Scania, Sweden
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Re: Raspberry Pi 4 B stopped & died suddenly [due to AC adaptor]

Sat Aug 03, 2019 11:46 am

I got a refund for the broken power supply (£8) & I didn't have to send it back.
Have Pi0&1A&1B&1B+&2B&3B&4B w/ Raspbian. Started w/ BASIC on ABC80&ZX81 then Forth, Z80… https://scratch.mit.edu/users/mobluse/ https://github.com/mobluse/ https://twitter.com/mobluse/ https://YouTube.com/MOBiL4u/

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