| Problem | Solution | |---------|----------| | | Use XP / Windows 7; install Nokia Connectivity Cable Driver (v7.1.31.0) | | Flashing fails at 50% | Bad CNT file – re-download or use different source | | No PPM region shown | Wrong PPM version for your keyboard/RM-721 sub-variant | | Bootloop after flash | Flash only MCU + PPM (skip CNT) → then hard reset |
When prompted, connect the phone (with the battery inside) to the USB cable and press the power button quickly.