Bricked M9 Pro

[FreeBullets]

I flashed RileyROM 3.4 on my M9 Pro from a previous version. It was crashing, especially when rotating it seems, so I redownloaded it and flashed it again. After getting it set back up with TitaniumBackup, I pressed the reboot button, and it shut down gracefully. Permanently, it seems. It's not showing any signs of life. The Power+ESC+Reset button combo doesn't do anything while connected to my computer. The charging LED doesn't even come on. Is it bad?

[rrileypm]

With a paper clip, press the reset button on the back of the tablet.

Then try to power on.

[FreeBullets]

With a paper clip, press the reset button on the back of the tablet.

Then try to power on.

I tried that.

[rrileypm]

I've experienced that before on an M8 Pro.

Did you happen to have used a charger other than the one that came with the tablet? Or have you noticed anything different in the charger or the connection?

It's possible that the charging circuit has failed. That's indicated by the fact that the red LED doesn't come on.

It's either the charger...which can be replaced...or the battery protection circuit which can't without sending it back to Pipo, or the seller.

[FreeBullets]

I've experienced that before on an M8 Pro.

Did you happen to have used a charger other than the one that came with the tablet? Or have you noticed anything different in the charger or the connection?

It's possible that the charging circuit has failed. That's indicated by the fact that the red LED doesn't come on.

It's either the charger...which can be replaced...or the battery protection circuit which can't without sending it back to Pipo, or the seller.

I tried using a USB to Round DC Plug cable to see if it could be charged that way at one point. It didn't do anything but show the charging indicator. I still don't quite understand why it didn't work given that both provided 5v.

But other than trying that a few months ago, it's been connected to the stock charger. I haven't noticed any battery abnormalities. It's been dormant for the past couple months though. On the stock charger for most of the time I believe. Is there anything I can try such as disconnecting the battery internally? It was charged when it died. Or so the battery indicator said.