urgent problem in tablet android

[dias93]

good afternoon

I have a problem with my tablet android VPAD7 ViewSonic brand, which got virus through an application and now the system does not start android, it appears the brand image and then restarts and says welcome and you're always doing this while you battery.

I've done reset, already formatted the memory card and nothing came

I need your help urgently

thank you

my name is luis and I hope to learn from you



thank you