Honestly, I confess that I am writing to this topic because I would like to receive a usable T811 mini tablet from the esteemed manufacturer Alldocube. The device I ordered from Banggood is practically unusable. It constantly crashes and shows the error message ‘Your device is corrupt..’ during boot-up. It cannot load updates, and I cannot set it to recovery mode. Then I tried reflashing it with the firmware available on the official website – I did this at least ten times. Now it’s slightly better as it was able to load the update, but it remains unstable and crashes and restarts itself at the most unexpected moments. As a result, I lose data, and I dare not set the security options either. I’m only installing regular Google Play applications, and Play Security does not indicate any application errors or incompatibilities. I haven’t touched the developer settings. It’s as if Android 13 does not match this hardware, which is supposedly excellent, but it’s entirely unreliable like this. If Alldocube wants to maintain the brand’s reputation, they should send me a new, properly flashed, and thoroughly tested device because what I received seems like a shoddily assembled shit batch of devices. If I receive a positive response, and official mail I will provide my contact information. Joe

I got this unit from Banggood relative late, because they told that producer does not deliver. The unit was very unstable and cannot install newest update. In the 3.day the “Your device is corrupt, etc….” message came out, and practically has been unbootable. After a lot of angry, I found the firmware and reflashed the unit. After that, newest update has been possible to install, but the unit instability – accident restarting sometimes – remained. So, my experiences are very contradictional until now, maybe I cannot expect better reliability for this – really cheap (less then 100 USD) price, or was it not an accident, that they selled it so cheap ?