We had one old Samsung tablet from which we wanted to move over our game progress. To be able to do that we found third party backup and restore software. We bought a new A3-A40 and ran a restore. Some worked, some didn't. But the problem now is that the tablet has crashed aprox every other day so that we have to keep the power button down a while to be able to get it back up. I read somewhere that vibrations while booting indicate something. I don't remember what, but I can say that it does not vibrate at all while holding the power button or when powering it on, if it matters.
I can't say if the tablet would have worked before running a restore of all the apps, because that's among the first things we did. I can't run a factory reset to it either, since it will wipe the progress. If I back them up, I'm soon back to the current situation again where I restore some setting that messes things up.
The thing I'm basicly asking here is, if anyone else is suffering from the tablet constantly crashing? I haven't seen it crashing once while using it. It crashes while it's lying idle on the coutch. The next time we pick it up, it's unresponsive. After a reboot it has battery left, so that's not it either.
From what I can gather from your responses is then 2 options. If no one else has a crashing tablet, I'll go for a reset and hope it fixes it. If you do have, then it might be a hardware / software problem which will not get fixed by a reset.