There are 2 ways to go back to Android 10: either use the automated installer or SP Flash.
@Cedro @Lastbat did this work for either of you?
I have been having the same problem, barely charging (maximum ~50% after all-night charge, and then drains very quickly). I even bought a new battery and have the same problem.
My battery drained completely last night. I have been trying to charge it for the last 12 hours with various cables and charging blocks, but it is showing no sign of charging up.
My previous Teracube 2e handset had similar issues and it was replaced under warranty a couple of months ago. While I’m happy that the warranty is good, it’s not exactly conducive to being able to use my phone.
Welcome, and sorry for the trouble.
Have you attempted a firmware update to the latest/current stable release, and then a factory reset to see if the behavior persists?
So I just did the factory reset yesterday, and if anything it’s worse now. Have been charging for an hour and the battery hasn’t moved past 2%.
It can take some time for the CPU usage to calm down after a reset and restore from backup as app updates are fetched, databases are populated and maintained, etc.
Can you please monitor over the next day or so?
So I was monitoring, and battery still charges very slowly.
Also, the battery died completely last night and now will not charge with any cable.
Both batteries, correct? Is it completely unresponsive to holding the power button?
Can you tell me the rating of your charger? It will be in watts, or you can tell me the voltage and amperage.
It doesn’t respond to holding the power button; and I’ve been trying to charge for eight hours.
Ouput 5.0V, 2.4A, 12.0W max
How should I proceed; assuming this needs to be sent off for warranty repair?
If it’s completely unresponsive, no lights, nothing, yes, you’ve done all you can, and it needs replaced.