Note: For the purpose of this guide, we will focus on the , as it is the industry standard for Samsung legacy devices.

| Problem | Solution | |---------|----------| | No COM port | Reinstall SPD driver, try different USB cable/port | | “BROM error” | Short test points (TP) to force download mode | | Stuck at 0% | Remove battery, reconnect, start download again | | IMEI null after flash | Use SPD IMEI Writer tool |