Here I have come up with a couple of methods to fix the problem.
Method 1. Assign IMEI Number
Requirements
Rooted Android Phone.You should know IMEI number of your device.
Download and Install MTK Engineering Mode App (Preferred) or Mobile Uncle tools.
Steps to Follow
Step. 1 In MTK Engineering Mode App select MTK settings. Step. 2 Go to connectivity and select CDS information. Step. 3 In CDS select Radio information. Step. 4 Select phone 1 and in input box enter AT+EGMR=1,7,”Your IMEI Number” and press Send AT Command. Now reboot the device. Step. 5 If you have a dual SIM device then again go to the MTK Engineering App and now select Phone 2 and enter the command AT+EMGR=1,10,”Your IMEI Number” ,send command and reboot the device. Step. 6 Once done you will see the network. Note: If the command doesn’t work just simply put space after AT i.e AT +EMGR instead of AT+EMGR. Source: Watch Video
Method 2. Install IMEI Backup
Requirements
Root accessIMEI numberDownload Mobile MTK write Tool zipDownload Uncle Mobile ToolPC
Steps to Follow
Step. 1 Open the MTK tool application file and First enter the command Y and hit enter. Step. 2 Now Enter the IMEI number and hit enter. Step. 3 Again enter the IMEI number and hit enter. Step. 4 Create IMEI.bak file and copy it your device storage. Step. 5 Open the mobile uncle tool, choose IMEI Backup & restore the .bak file Step. 6 Once done reboot the device. You will see the network again. Note & Conclusion: Do not make any unnecessary changes in MTK App it is a very sensitive tool. ***DigitBin is not liable for any risk so do not use any other tools in MTK settings. I hope the post was helpful do comment below for any assistance required. If you’ve any thoughts on Fix Invalid IMEI on Mediatek Android Devices [No Signal], then feel free to drop in below comment box. Also, please subscribe to our DigitBin YouTube channel for videos tutorials. Cheers!
