How To Gear Upward Unknown Baseband Version, Zippo / Invalid Imei & Sim Carte Du Jour Non Detected

Quite a number of MTK users convey been having this final result on their MTK devices later flashing 1 ROM or another; something i telephone phone the 'Custom ROM fever'. This final result is generally caused yesteryear wiping / corruption of the information partition. The Baseband as well as radio (for network signal) are controlled yesteryear the NVRAM (located inward data/nvram/md/NVRAM/NVD_IMEI) as well as a file called MP0B_001.
Once this file is missing or the NVRAM partiton is corrupted, your phone's IMEI as well as radio functionality cease to exist. There are several methods to laid this:

Note: 

• Go to Settings > About as well as banking concern tally Baseband. If it says Unknown as well as then flash the Stock ROM / Firmware using Sp flash tool @ HERE to find Baseband
•  For Samsung phones,  use octupus box

How to laid NULL IMEI on a Mediatek (MTK) Android phone

1. MP0B_001 Method [ROOT Required]

1. Search as well as Download ROM toolbox low-cal from Playstore 
2. Download IMEI.zip (to practise a novel IMEI file) as well as then unzip the content of the folder (imei.exe) to a folder on your desktop 
3. In command prompt, navigate to the imei.exe containing folder yous simply created on your desktop
   * NOTE cd\ as well as then motion into (returns to root directory)
          
   
   Code:

   cd.. 
   
   Press Enter (goes upwards 1 directory)
          
   
   Code:

   cd foldername
   
   Press Enter (navigates to a folder called foldername)
4. A faster method is to opened upwards the imei.exe containing folder > Hold downwardly Shift > Right-click on an empty infinite > Select "Open Command Window here"
5. When you're within the imei folder inward command prompt, type
   imei.exe <15digit_IMEI_1> <15digit_IMEI_2>
   eg
   
   
   Code:

   imei.exe 123456789111111 123456789111124  
6. Press Enter          
7. If both IMEIs yous gave are of the right format, a file named MP0B_001_NEW volition last created. Rename it MP0B_001.
8. Now yous tin mail it to the sd of your phone 
9. Install ROM toolbox low-cal as well as then become to root explorer
10. In root explorer, delete the existing MP0B_001 file (located @ device/data/nvram/md/NVRAM/NVD_IMEI) as well as supervene upon alongside the 1 yous simply created 
11. Long press the novel MP0B_001, become to permissions as well as tick all nine boxes at the overstep as well as then direct ok (don't tick exceptional pernissions)
12. Restart your phone
13. Your SIMs should last detected, IMEI reverberate as well as Baseband version alter from unknown to what it should be.
    * Note that getting this done mightiness non last this straight due to unlike scenarios but replacing the MP0B_001 file is the ultimate destination inward club to laid the issue.

2. IMEI Replacement Method [ROOT Required]

This method involves the utilization of MTK droid tools as well as is solely applicable when your SIM cards are detected but IMEI is invalid or null. To practise this:

1. Download MTK droid tools
2. Download PdaNet
3. Enable USB debugging on the telephone as well as then connect it to the PC (don't enable volume storage)
4. Install PdaNet on the PC alongside the telephone connected; yous should instruct a message proverb drivers installed successfully.
5. Extract as well as then launch MTK droid tools on the PC (still alongside telephone connected to PC)
6. MTK droid tools should abide by as well as display your phones details
7. Click on IMEI/NVRAM
8. Supply the IMEI(s) as well as then click replace
9. Restart your telephone if it isn't automatically restarted
10. Your IMEI final result should convey been resolved

3. NVRAM Restore Method [ROOT Required]

* Note that yous postulate a working telephone of the same model to backup NVRAM first 

1. Download MTK droid tools
2. Download PdaNet
3. Enable USB debugging on the GOOD telephone as well as then connect it to the PC (don't enable volume storage)
4. Install PdaNet on the PC alongside the telephone connected; yous should instruct a message proverb drivers installed successfully.
5. Extract as well as then launch MTK droid tools on the PC (still alongside telephone connected to PC)
6. MTK droid tools should abide by as well as display your phones details
7. Click IMEI / NVRAM
8. Click Backup
9. When backup is complete, opened upwards the MTK Folder > BackupNVRAM to confirm that backup was successful
10. Connect the telephone alongside Basebrand / IMEI fault to the PC withal alongside MTK droid tools open
11. Still nether IMEI / NVRAM, click Restore
12. Select the appropriate files from the windows that popular up
13. Reboot the telephone 1 time the physical care for is complete

4. Engineering Mode Method [ROOT Not Required]

1. Download as well as Install Mobile Uncle  then grant superuser permission. You could also use MTK Engineering Mode
2. Select Engineer mode
3. Select Engineer manner (MTK)
4. Navigate to the Connectivity tab
5. Select CDS information
6. Select Radio Information
7. At Phone 1: Insert the command below as well as then click Send at command
   
   
   Code:

   AT+EGMR=1,7,"IMEI1"
8. At Phone 2: Insert the command below then click Send at command
   
   
   Code:

   AT+EGMR=1,10,"IMEI2"
9. If yous instruct an fault similar "This command is non allowed inward user build" as well as then exit a infinite betwixt AT+ as well as EGMR every bit present below
   
   
   Code:

   AT+ EGMR=The residuum of the code
10. Go dorsum to Mobile uncle abode screen
11. Click on Engineer Mode
12. Select Engineer manner (Android)
13. Select Phone information
14.  Click Turn on radio