How You Can Fix Unknown Baseband Version, Null / Invalid IMEI SIM Card Not Detected....

How You Can Fix Unknown Baseband Version, Null / Invalid IMEI SIM Card Not Detected....

For so many reason  android user encounter this imei/unknow based version error after flashing a rom or after factory reset today we will be give you the best method to fix this bug when you encounter it  this guide applies to all MTK mediatek device

How to fix unknown Baseband version, null / invalid IMEI &  SIM card not detected

Thing You Needs

• Nvram Backup (Download) Tecno H6
• Nvram Backup (Download) Gionee P4
• Es file explorer (Download)
• A rooted Android

Use any of the Nvram backup
After downloading the reqwuired file you need launch your Es File explorer click the menu of this and enable Root Explorer

 

Click on the Sdcard0 that is your extrernal Sdcard  location the Nvram file you download

 

Extract it using Es zp Viewer

 

Click that Icon at the top to extract the folder to any folder you want 

 

Copy  the Nvram folder  navigate to device as seen in the picture below

 Click the data folder to open it up

 

Paste it, it will ask you to overwrite the nvram folder click overwrite

Now close es file explorer and Reboot your device.
When ur device is finally booted, your invalid imei and unknown baseband version would be fixed....enjoy...