: Ensure the device has a continuous power supply. Interruption during the process can permanently damage (brick) the hardware.
| Problem | Solution | |---------|----------| | “Update failed – file mismatch” | Re-download firmware for your exact model and hardware version. | | USB not detected | Use a smaller USB drive (8GB or less) formatted to FAT32. | | Device stuck on boot logo | Perform a factory reset: Press and hold reset button for 10 seconds (check manual). | | “Low power – update aborted” | Connect device to a UPS or direct wall outlet (not extension cord). | cp plus firmware update download