Pinebook Pro won't post after hard reset
#1
Hello,

Just wondering if there is something I can do to get my Pinebook Pro booting again after a hard reset? The OS froze and wasn't usable so I hard reset it by holding the power button down. After doing so it won't boot now? The charging light is still lighting up when plugging in the charger but when I press the power button I get nothing.

Thanks,
#2
I have a similar problem

Today I decided to return to where. Only now LSBLK returned me that emms is on mmcblk1. ok uploaded there.
after the end of the process, turned off the laptop. but it's frozen.
I waited for a while and turned it off by holding the power button for 15 seconds.

after which the laptop will not turn on. the power-on indicator is neither red nor green. the screen does not show anything either.
only the cpu temperature is an indirect sign of operation. after a short press on the power supply after a short time, it becomes warm. after 15 pressing the power button it cools down quickly.

what will be the assumptions about what happened and what to do about it?
#3
I'd first get it to boot *anything* and work backward from there. Turn the eMMC off, and boot to Debian or something with an SD card.
#4
(09-18-2020, 03:11 PM)KC9UDX Wrote: I'd first get it to boot *anything* and work backward from there.  Turn the eMMC off, and boot to Debian or something with an SD card.
the result is exactly the same. nothing.
I connected the board to another computer and enabled the Maskrom mode.
from the https://wiki.pine64.org/index.php/Pinebook_Pro_SPI instructions.  to update the SPI firmware. 

but the links to the firmware files themselves are not working.
#5
(09-18-2020, 03:11 PM)KC9UDX Wrote: I'd first get it to boot *anything* and work backward from there.  Turn the eMMC off, and boot to Debian or something with an SD card.

Thanks for your post, I have tried switching off the eMMC and booting from an SD card. Unfortunately it still didn't work. I get nothing when I press the power button. It's almost like the power button is broken?

I also tried following https://wiki.pine64.org/index.php/Pinebook_Pro_SPI like sashka_amur. I'm able to gain access to the SPI but I'm still not able to get it to boot.

Thanks,
#6
>I waited for a while and turned it off by holding the power button for 15 seconds.
??? I've always found that ~7 seconds is enough to force it off
Just today, yet again, I had to do "extra long press" ,, appeared dead, only chg led
This is almost 10 times by now (my fault, messing with various uboots)
So, it costs you little
Make sure that a bootable SD is in socket
If there is a bad uboot somewhere, disable it, get it gone
Don't let up pwr button too soon, if anything give a few extra seconds,,, 20+s
If you hold it only 18s, won't work,,, I know documentation says 15, that is wrong
Then, a normal start press
#7
OK, so I have some development now. I managed to follow https://wiki.pine64.org/index.php/Pinebook_Pro_SPI and gain access to the SPI. Then I downloaded and applied the spiflash.bin file from here https://github.com/pcm720/u-boot-build-s...v2020.07-1. Now I'm able to press the power button and the light on the laptop lights up orange. No boot to OS but it is progress. 

Can anyone let me know if I'm on the right track or am I supposed to do something different? I have tried to get it to boot to SD but it still won't do that with or without the eMMC module enabled or disabled. Is there a way following similar steps above to re-flash the eMMC module via another connected computer or do I just need a different SPI.bin file?

I'm able to follow instructions but the above steps are a little alien to me. I vaguely understand what is happening but I'm not sure if I'm on the right track?

Thanks,
#8
Would you not be better off zeroing it?
At least, that is another option
Once you have a bootable pbp, you can again try writing SPI, from os, not rkdeveloptool
--edit--
Sometimes, for flash, it is good practice to write zeros first, then write image
No left-over, not overwritten junk
Especially if new image is smaller
#9
You can re-flash the eMMC once you've booted from SD or USB. Try both now that you've flashed SPI.
#10
(09-22-2020, 04:13 PM)wdt Wrote: Would you not be better off zeroing it?
At least, that is another option
Once you have a bootable pbp, you can again try writing SPI, from os, not rkdeveloptool
--edit--
Sometimes, for flash, it is good practice to write zeros first, then write image
No left-over, not overwritten junk
Especially if new image is smaller

I was curious if I should zero it? Again, I'm not 100% certain what all this is doing but all I was hoping for was proof that I hadn't screwed the motherboard in anyway. Again, more developments, out of nowhere it managed to boot from the SD card. Still had some issues with the image I burned to it where it wouldn't get past the loading screen for Manjaro so I've tried postmarketOS and have managed to actually boot into it. Not sure what changed from yesterday to today? I'm going to try another image and if successful I'll push the image to the eMMC to see if it will boot from there instead of the SD. Progress is progress.

Thanks,


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