PinbebookPro electrically dead ...
#1
I have had my PBP since early May 2021 and have loved it dearly. It was perfect for experimenting with software, the battery life was great, etc.



However, a few days ago, my enjoyment of it came to a halt, with a bad software installation that crippled the system (Manjaro, updated from the original installation). I tried to re-install the OS onto the 64Gb eMMC, but I kept getting told that the file system on the eMMC was corrupt. Eventually, one of the attempts, always ending with a restart, failed to bring the computer back to life. No lights came on at all. Since then, the only sign of electrical life has been a little red light next to where the power supply cable goes in (the barrel port/jack?)



I suspect the motherboard is dead. Perhaps the eMMC, too. I admit, I am a software guy, so I need guidance on diagnosing the electronics/electricals of my PBP. I would really appreciate any suggestions. It would be a shame to have to scrap a computer after six months.





P.S.



I have written to support@pinemicrosystemsinc.zohosupport.com, but they tell me to try the forums.



There was one case I have seen in the forums that also referred to a dead PBP and the answer was "Conctact sales" [for motherboard, and other parts].
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#2
Try this (because I am guessing you also did a uboot update, manjaro's uboot are not so good)
Take off back, remove/disable emmc, put KNOWN good uSD in,
do resets in order (testing after each),,, hard pwr-off (7s press pwr button),, hard reset (20+s), internal reset button
If necessary, do this twice
  Reply
#3
(11-28-2021, 01:09 PM)wdt Wrote: Try this (because I am guessing you also did a uboot update, manjaro's uboot are not so good)
Take off back, remove/disable emmc, put KNOWN good uSD in,
do resets in order (testing after each),,, hard pwr-off (7s press pwr button),, hard reset (20+s), internal reset button
If necessary,  do this twice

Thanks. Now the power light comes on in red, turns green after a few seconds and eventually goes out. The screen stays dark, so I don't know if there is any attempt to boot from the uSD.

Try to make up a new bootable uSD tomorrow.
  Reply
#4
The red-green means that the sd has (probably) a mainline uboot package on it
I don't have much experience with these, they are not capable of s3 sleep
Well, tow-boot is mainline and it has a less long s3 sleep
(s3 sleep is about 7%/day,, s3 sleep=sleep to mem,,only pwr button and lid switch are alive)
  Reply


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