Invalid IMEI or not connecting to Cellular Network
Sometimes you may see an ‘INVALID IMEI’ message after inserting a SIM. This can happen after a factory reset. To fix, you need to re-confirm the IMEI of the Device.
1. First find you IMEI number. It will be printed under the battery. To remove the battery, turn the 2 release switches on the back and lever the battery cover off from the top. Write down the number and re-insert the battery, and turn the device on.
2. Type in *#*#3646633#*#* in the dial pad (Where you dial phone numbers)
You will now enter the engineering mode
You should now be in “MTK SETTINGS”
GOTO THE CONNECTIVITY TAB
CLICK THE CDS INFORMATION
CLICK RADIO INFORMATION
AFTER THAT YOU CLICK ON THE Phone 1 (or SIM 1) OPTION
Select in the top text bar and Tap the letter “E” and some options will appear. Select AT+EGMR=1,7 for Sim1 (Phone1)
Between the “” Type the IMEI number of the device.
For example it will look like this:
3. Tap “SEND AT COMMAND”
**If you see a message “command is not allowed in userbuild” or “AT Command send fail”, put a space between the “+” and “E” . Then press SEND AT COMMAND again.
4. Restart your device and your IMEI should now be fixed.