Forced Upload mode shall be used in cases to capture logs/dumps for software R&D analysis (when a hang occurs, deep sleep mode occurs and Issue case where you need to capture it) Procedure: a. You can enable Forced Upload mode by key pressing: Volume Down (Keep the volume keys pressed until the upload mode comes) + Power Key twice b. If your device is locked up and you try as above, you can enable Forced upload mode Hardware reset. It is the same method with Forced upload mode by pressing same key combination.

All Samsung Firmwares for GT-S5283B, Samsung GALAXY Star Duos EN.