PBP booting but stops at flashing power led
I just received my new pinebook pro in 08/2022. After installing the ARM Manjaro Gnome desktop OS to eMMC booting from Manjaro SD card, the PBP started with the new OS. After a couple of system starts, the PBP booted showing the u-boot screen, then showed a blinking cursor in the upper left corner and just stopped with a green-orange-blinking power LED. This has not changed since then. The following paragraphs describe my attempts to fix the problem.

I tried booting from SD card (the same card that worked before) but it doesn't work anymore. I tried different Linux distros to create a bootable SD card using Balena Etcher, e.g. Manjaro Gnome/xfce/KDE and Armbian (new and older versions).

After that, I opened the back cover to check the eMMC switch (no. 24 regarding the PBP wiki). But the new PBP does not have the switch as described. There is another switch (turned by 90 degrees to the original one) which is covered/sealed by a transparent material. I compared the switch to my other PBP (2020 model) and it looks different in my new PBP.

Using a USB eMMC adapter, I flashed several Manjaro and Armbian linux distros on the eMMC and inserted it back into the PBP. My PBP does not boot anymore: not with the eMMC and not with a bootable SD card.

When I insert the eMMC of my old PBP, the PBP boots to an older Manjaro KDE plasma. Keeping the old eMMC in the PBP, I tried to boot from SD card to flash a newer distro to the old eMMC. But it did not work. The PBP only starts from the old eMMC and not from any inserted bootable SD card. The problem with the old eMMC is that wifi is not working (not showing any networks). I do not dare flashing the old eMMC using the USB eMMC adapter...

Is it possible that the new eMMC has a failure and how can I check?

I read a lot of threads in the forum, on reddit and other web sources but all described steps and tips did not work for me. Is there a better way to flash a linux distro with u-boot etc. to eMMC? I also read that it is possible to boot the PBP without eMMC. That does not work with my PBP. Has this changed with the new model? I highly appreciate any tips and hints on how to proceed with my new PBP.

Messages In This Thread
PBP booting but stops at flashing power led - by jonasd - 08-14-2022, 05:09 PM

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