i got an r4 card a couple of months ago for my son all went fine until the other day it just wouldn't play the games it freezes on the loading... screen,i have tried it the micro card on his friends r4 card and no problems the r4 i got is an "upgrade" and has a spring loaded compartment for the micro sd card any ideas please !
Maybe the one you have is the fake one. Fake ones are cheaper. I brought mine from techzo uk. I had no problems. Firmware comes loaded. Just copy the games and I'm set to go. Easy. Plus support is excellent