Professional servicing tools are the safest and most reliable way to rebuild security data on KaiOS Qualcomm devices.
Sometimes, software repair fails. If you have tried Method 2 or 3 and the phone still shows "Null IMEI," the EEPROM chip is physically dead. nokia 8000 4g imei repair
Connect the phone to the PC via USB cable while holding the keys. Professional servicing tools are the safest and most
Swap the USB cable or try a different USB port (preferably USB 2.0 ports on the back of the PC). nokia 8000 4g imei repair