Samsung GT-i8552 Galaxy Win Duos / Galaxy Grand Quattro Unbrick – Total Repair supported Repairing bricked Samsung I8552 is easy with the RIFF Box.

Note, one simple way to connect over JTAG – connect USB cable to PC and
insert battery. In this case phone is automatically powered on, so no
need to press any power-on buttons on the phone keypad.

To resurrect Samsung I8552:

•  Solder JTAG cable to Samsung I8552 JTAG pads;


•  Insert USB Data cable into board and PC;


•  Make sure Samsung I8552 is selected in the list of models;


•  Click Resurrect button;


•  Wait till software signals a successful operation completion;


•  Disconnect power supply, de-solder JTAG wires;

Now phone is in bootable condition, that is, even if it does not
start up normally, you can flash it using known flashing methods.

To enter download mode:

•  Disconnect PC cable;


•  Insert battery;


•  Hold ‘Volume Down’ and ‘Home’ keys and press Power-On.

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