Crash of Android

Hi,

I have buy a VIM Khadas pro at gearbest. I have tested different rom of android but from the first restart i have the message : “Optimization of the applications” and many crash of android. I made a wipe cache partition but it’s the same…The os is is unusable.
Have you any idea ?

Jérôme

Maybe It was cause by the abnormal power drop-down when the device was runing
You can try to power off your device by normal.

No, i use the menu to power down or reboot.
I tried a linux rom no problem…
May be a problem during the the flash rom ?