12-12-2020, 05:34 AM
(12-10-2020, 07:04 PM)KC9UDX Wrote: It's been reported in other threads that if you drain it that far, you might need to charge it once with a USB-C charging cable to revive it. I'm not sure why.
Then, as @tophneal brought up, it might be executing a software loop or the SOC has otherwise crashed and is "running" with no signs of life. If that's happening, you need to hold the power button for twenty seconds or so to get it to turn off. Then press it for a second to get it to turn back on.
But have no fear, it's impossible to "brick" the PBP; and nearly impossible to get to a point where it just won't boot.
Don't worry about the reset button; you shouldn't need that unless you've written something to SPI F-ROM.
Thanks, both to yourself and @tophneal. I've charged the computer, first for 10 hours via the Pine64 power cable, then 15 hours via USB-C connected to a power cable. The red light goes on when the computer is being charged in either way.
Sadly, nothing happens when holding the power button for 20, 60, or even 120 seconds, releasing, and then holding the power button for one-two seconds. Nothing happens whatsoever. I've also tried disabling the eMMC-hardware switch and retrying the above, to no effect.
It seems the computer is stone-cold dead at this point. I've (again) checked all cables and they're all plugged-in, as far as I can see, judging from the Pine64 guide regarding the hardware under the hood.
As you have indicated, I don't think I've managed to ruin the computer by flashing U-boot the wrong way, but I'm concerned with the fact that the computer doesn't seem to boot in any way. I've used four different MicroSD cards and re-flashed them all with images that have previously worked; I used Etcher for this, including the validation phase that told me all images were successfully burned and verified.
Do you reckon I should return to Pine64 support about this? I lack adequate electrical skills and a multimeter to try and figure out what could be wrong, and I don't know the technical side of this well enough to be able to test different hardware parts. I really want to be able to continue using the Pinebook Pro, but if they can't help me I see no other way out of this than to buy a new computer from a different vendor (as the Pinebook Pro is out of stock and I've received no replies to my asking them when it will be in stock again).
Any further help would, again, be greatly appreciated, as I'm utterly stuck. Thanks so far, guys!