broken emmc

[nieral]

Hey!

My Pinephone BH won't boot anymore. I have PM Os installed on the emmc, the sd card as an additional drive. It worked very well with the stable branch. Three days later it was dead. When pressing the power button it stucks with the 'led test' and makes a short 'click' (which seems to be specific to pm os) and restarts over and over again. that it quits at the "led test" reminds on the error bieps from bios, when something essential did go wrong. So: no boot screen, nothing.

What I already tried:
- completely charge the battery
- flash the sd card with jumpdrive:
The phone booted into the jumpdrive modus, but: lsblk did not show the emmc nor the sd card (which is strange). I can unplug the usb cable while it runs jumpdrive, so the battery works well.

I think the emmc is dead. Can I replace it??

I appreciate any idea.


Ralf

I have experienced the same twice with pmos. In my case it has been with an SD card.
It happens when the phone has been running for 2 ish days plugged in to power. I come back to the phone and it's dead.
When i try booting it again it does the click sound. Taking out the sd card and boot from the emmc(factory test image) it boots fine.
The sd card won't boot until i reflash it.

I still struggle with this issue when my battery is empty. But I found a work around without flashing the emmc.

1) I was not able to boot the factory test images No. 49 or 55, only the image from 17.05.20 worked.

2) After I succesfully booted jumpdrive (see post above), it failed again and I couln't see the emmc or the sd card.

3) I then flashed my sd card with mobian which worked. I charged the battery while running mobian. Afterwards it succesfully booted pm os from the emmc again.

So, whenever my phones' battery is completely empty, I'm having the described issues. I then plug in my "spare" Mobian SD, charge the battery for a couple of minutes and restart the phone without the mobian image.

Could it be connected to the kernel? I find it interesting that the old factory image booted, but the newer ones did not. I will duplicate this post in the pm os section.