Specification : 1st bootloader = Sigmatel; 2nd bootloader = hynix 1GB; and board = Szeeway S-779A-070528
Solution :
- Format with low level format.
- Make partition or format again with management windows.
If you have a problem with the firmware & will upgrade/repair, I had to upload the backup firmware (be carrefull some partition can be null information) and the firmware extractornya for bckup your corrupt firmware.