Default Ace IIx GT-S7560m - Recovery can't detect internal SD

It seems like the recovery of my GT-S7560 can`t detect the internal SD card of the phone.

I tried the stock recovery, Daver18qc's GT-S7560M Root Kit and Codename13's TWRP Custom Recovery 2.6.3 and all can`t mount the SD.

Yet, the SD card works great when assessed from my phone or laptop.