My new tablet Onda vi40 keep crashing for no reason.

[[SPARTACUS]]

I've got my new Onda vi40 and after I've deleted some Chinese applications he started shutting down for no reason. Now, when I turn it on he stay turned for about 5-10 minutes and then he just shut down .Can someone please tell me what's problem ?

[SPARTACUS] Reviewed by [SPARTACUS] on 10th Aug 2012. My new tablet Onda vi40 keep crashing for no reason. I've got my new Onda vi40 and after I've deleted some Chinese applications he started shutting down for no reason. Now, when I turn it on he stay turned for about 5-10 minutes and then he just shut down :| .Can someone please tell me what's problem ? Rating: 5

[JBL]

Simply RESET it..!!

[[SPARTACUS]]

Done, but problem is still here. When I charge the battery to 100% and after that I can use it without problem. But if I shut down, then when I start it again he goes down every couple of minutes. Any suggestions JBL ?
btw, thank you for you answer.