hi, I have the c5j6 wich did not have this apk with the original rom, but I installed the apk as Oguz said and it runs ok. so anyway, before flashing the bios under android I would like to know if someone with C5j6 has flashed the bios in the way I’m trying, is it possible to do that? I am worried about why this model doesn’t have this updateifwi.apk. I really do not want to brick my tablet, so please somebody tell me if it is safe what I am trying to do.