Charge the phone battery to a minimum of 50% or higher to prevent an abrupt shutdown during the write phase.

For reliability, always use trusted sources to avoid flashing corrupt firmware. Search for " Samsung GT-C3222

Click "Set Model" and choose the appropriate configuration file ( .mdl or .cfg included with the firmware). Click "Set Application" and select the .app file. Click "Set Content" and select the .tfs or .bin file.

Which are you using to run the tool?

Use a high-quality cable to prevent disconnection. 4. How to Flash the Samsung GT-C3222