Hi guys. I'm new in this forum...well, I haven't need a nintendo DS forum until today. I've got a R4i-SDCH from my friend. It has serial: R4_B_V1_X6_02 and it has a yellow PCB. The official site should be: www.r4rts.cn It thought R4i-SDCHs are DSTT clones . But I have tested many firmware (included the specified one) and it appears everyime to touch the touchscreen without loading anything. Any hints?