If you don't want to use a PC, some MTK phones allow a "no-root" fix via internal settings: Dial the Code: Open your phone dialer and type *#*#3646633#*#* to enter Engineer Mode. Locate Connectivity: Connectivity tab and select CDS Information Radio Info: Radio Information , then select (for SIM 1). Send Command: For SIM 1, type: AT+EGMR=1,7,"YOUR_IMEI_HERE" For SIM 2, type: AT+EGMR=1,10,"YOUR_IMEI_HERE" Send AT Command and restart your device. ⚠️ Important Legal & Safety Warning Check Legality:

The International Mobile Equipment Identity (IMEI) is the unique 15-digit "digital fingerprint" assigned to every mobile device. For devices powered by MediaTek (MTK) chipsets, software corruption—often caused by failed firmware flashing, improper rooting, or baseband issues—can lead to an "Invalid IMEI" or "Null IMEI" error. This prevents the device from connecting to cellular networks, effectively turning a smartphone into a tablet.

Legacy MTK phones (MT65xx, MT67xx, MT81xx). Developer: MediaTek.

While the MTK IMEI Repair Tool is generally safe to use, there are some precautions and risks to be aware of:

Most tools will ask for the MD1_DB file found in your phone's stock firmware folder.