ajr-dev
Posts: 14
Joined: Thu Dec 03, 2020 8:57 am

Rpi 4 won't boot

Wed Jun 23, 2021 11:42 am

Yesterday I tried to update the rpi4 which I hadn't used in a while but it gave me somo 'Not found error' and didn't update. I decided to start new. I used the imager to move the Raspberry Pi OS (32-bit) 2021-05-07 to the micro sd. I started it. After installing some updates it said it needed a restart. So I restarted and it didn't boot up. I copied the image again to the micro sd but it didn't boot up. It didn't even show any green lights, it stayed red. So I copied the bootloader to the micro sd and inserted it in the rpi4. I powered it and waited 20 seconds but the green light didn't blink and the monitor stays black. Now I don't know what else to try.

fruitoftheloom
Posts: 27013
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Rpi 4 won't boot

Wed Jun 23, 2021 12:47 pm

ajr-dev wrote:
Wed Jun 23, 2021 11:42 am
Yesterday I tried to update the rpi4 which I hadn't used in a while but it gave me somo 'Not found error' and didn't update. I decided to start new. I used the imager to move the Raspberry Pi OS (32-bit) 2021-05-07 to the micro sd. I started it. After installing some updates it said it needed a restart. So I restarted and it didn't boot up. I copied the image again to the micro sd but it didn't boot up. It didn't even show any green lights, it stayed red. So I copied the bootloader to the micro sd and inserted it in the rpi4. I powered it and waited 20 seconds but the green light didn't blink and the monitor stays black. Now I don't know what else to try.

viewtopic.php?f=28&t=58151
The information is out there....you just have to let it in.

My other Linux machines: ChromeBox
https://www.aliexpress.com/item/32966393971.html
& Stone Desktop Intel CoreDuo circa 2010

ajr-dev
Posts: 14
Joined: Thu Dec 03, 2020 8:57 am

Re: Rpi 4 won't boot

Wed Jun 23, 2021 1:19 pm

Need help with the LED warning flash code. It blinks when I first power it and then stays lighted.
https://vimeo.com/566575989

fruitoftheloom
Posts: 27013
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Rpi 4 won't boot

Wed Jun 23, 2021 1:34 pm

ajr-dev wrote:
Wed Jun 23, 2021 1:19 pm
Need help with the LED warning flash code. It blinks when I first power it and then stays lighted.
https://vimeo.com/566575989

Did you not read the link I posted ?
The information is out there....you just have to let it in.

My other Linux machines: ChromeBox
https://www.aliexpress.com/item/32966393971.html
& Stone Desktop Intel CoreDuo circa 2010

ajr-dev
Posts: 14
Joined: Thu Dec 03, 2020 8:57 am

Re: Rpi 4 won't boot

Wed Jun 23, 2021 2:06 pm

Yes, I read it. But I can't distinguish the type of flashes I'm seeing.

ajr-dev
Posts: 14
Joined: Thu Dec 03, 2020 8:57 am

Re: Rpi 4 won't boot

Wed Jun 23, 2021 3:54 pm

I used a 64gb micro sd card now and it booted. But it still doesn't boot after it finishes updating.

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