RIFF JTAG – Samsung SM-A300F Galaxy A3 LTE Boot repair supported

Repairing bricked Samsung A300F via ISP connection is easy with the RIFF Box.

To resurrect Samsung A300F via ISP connection:

  • Get access to Samsung A300F board (PCB);
  • Check schematics picture for solder positions of CLK, DAT0, CMD and GND signals;
  • Remove (de-solder) the CLK resistor (30R);
  • Solder CLK, DAT0, CMD and GND wires to the specified pads on the PCB;
  • Attach battery
  • Connect USB Data cable (in some cases also attach battery);
  • Make sure Samsung A300F ISP is selected in the list of models;
  • Click Resurrect button;
  • Wait till software signals a successful operation completion;
  • Disconnect USB cable and battery, de-solder wires and solder back the CLK resistor;

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