My mate has a box with the old firmware on it, I tried to do a upgrade and it simply says mismatch, I tried the software from this site. Download_Shenzhen Yojia Technology Co., Ltd. and still comes up with mismatch, the box it came in has the holograms and seems original, the only other thing I was thinking about was maybe its locked from upgrades and needs a nul modem cable install to unlock it.
What do the experienced guys think?
What do the experienced guys think?