Principle of flashing Nokia 6300:
1. Use the official system upgrade software from Nokia to change the phone's software system to Chinese.
2. During the upgrade, the official Nokia 6300 upgrade software first checks a Code on the device to determine which regional version the phone is, and then decides which language to automatically upgrade to.
3. By using NSS software to change the Code of the 6300 phone to the Chinese version, and then perform the upgrade. After completion, the system will be in Simplified Chinese.