cristianoparis
Posts: 7
Joined: Wed May 02, 2018 2:28 pm

Raspbian in PI3B+ fails to boot

Sun Sep 16, 2018 10:03 am

Hi, I just download the latest Raspbian (2018-06-27) and flashed to a 32 GB SD on PI3B+. It starts booting but after a few seconds (and a lot of kernel messages) it gets stuck to the rainbow screen and reboots.

I tried replacing the SD to no avail. Now, next, it's checking the power adapter.l when I get it.

In the meantime, is there anything else I can check? Maybe someone ran into the same issues and know how to solve it.

Thanks a lot.

C.

B.Goode
Posts: 6345
Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: Raspbian in PI3B+ fails to boot

Sun Sep 16, 2018 10:55 am

There is a Troubleshooting guide in Issue 60 of the MagPi magazine which you can access for free online. https://www.raspberrypi.org/magpi/issues/60/

The Raspberry Pi Foundation have a Troubleshooting Guide on their website: https://www.raspberrypi.org/learning/tr ... ing-guide/

This forum has a post which contains all the information currently available about getting an RPi to boot: named "STICKY: Is your Pi not booting? (The Boot Problems Sticky)" at https://www.raspberrypi.org/forums/view ... 28&t=58151


Is the device you are using to write the Raspbian Operating System image to your microSD card SDHC compatible?

Have you verified the checksum on the downloaded file to ensure it was not corrupted in transit?

cristianoparis
Posts: 7
Joined: Wed May 02, 2018 2:28 pm

Re: Raspbian in PI3B+ fails to boot

Tue Sep 18, 2018 5:53 am

Thanks for the answer.

I checked the SHA256 and it was ok. Also, I tried the SD on a Raspberry PI 3 and it worked.

The issue was actually the power adaptor. Bought a new one and now it works flawlessly.

In practice, running Batocera I noticed the same problem (reboot after 3 or 4 seconds) but a lightning bolt icon appeared in the upper right corner. That icon is signaling an undervoltage which is detected by the brownout sensor on the PI 3B+. Also, just before rebooting, the power LED is switched off. In order to protect the PI it gets rebooted.

I hope this helps whoever comes here and has the same problem.

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