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[Tutorial] How to fix Null IMEI / Unknown Baseband on Samsung phone
* This tutorial applies to only original Samsung phones.
An unknown Baseband is as a result of a corrupted EFS partition. The EFS holds the phone's IMEI and other radio information. To check the phone's Baseband, navigate to Settings > About > Baseband. Check the IMEI by dialing *#06#
You'll usually know you've been hit by the NULL IMEI / Unknown Baseband when you observe:
* Bluetooth address is unavailable
* WIFI connection will work inconsistent
* Constantly rebooting
* Fake IMEI or Null IMEI # (normally - 004999010640000)
* Null Serial number -(0000000)
* Unable to register to network
When you encounter an unknown Baseband and NULL IMEI, the first thing you need to fix is the unknown Baseband by flashing the Stock ROM / firmware for the exact phone model using Odin @ https://forum.hovatek.com/thread-519.html
Once that is done, you can then write an IMEI to the phone
Method 2: Xposed IMEI changer
* Download Xposed installer @ http://repo.xposed.info/module/de.robv.a....installer and install it
* Launch the installer

* If you get "The latest version of Xposed is currently not active. Did you install the framework and Reboot" then follow the guide @https://forum.hovatek.com/thread-7229.html to fix it
* Download Xposed IMEI Changer @ http://hovatek.com/redirect.php?link=htt...nger&hl=en and install it
* Launch the app

* Input your preferred IMEI and select Apply

* Reboot the phone
Note
You could also use EFS PRO @ EFS PRO @ http://forum.xda-developers.com/attachme...1419867628
fixing null / invalid IMEI on Spreadtrum
Here's a guide on fixing null / invalid IMEI on Spreadtrum (e.g Itel) phones. If you have an unknown Baseband (Settings > About > Baseband) then consider flashing the stock ROM first using this guide @ https://forum.hovatek.com/thread-1231.html .
See the video tutorial below or @ http://youtu.be/4GSm0Z06U9M
Method 1: Engineer Mode (No Root Required)
* Dial *#*#83781#*#*
* In Engineer Mode (Under Telephony), select Set IMEI
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-6.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-6.png)
* Input the IMEI the click Set IMEI
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-7.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-7.png)
* Select OK when prompted to reboot
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-8.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-8.png)
Method 2 : Shortcut Master (Root Required)
Requirement
* Rooted phone
* Install Shortcut Master (lite) @ http://hovatek.com/redirect.php?link=htt...lite&hl=en
Procedure
* Launch Shortcut Master (lite)
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-0.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-0.png)
* Press the Menu button and select Secret Code Explorer
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-1.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-1.png)
* Wait for loading to begin and complete
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3.png)
* You should see a list of apps
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3b.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3b.png)
* Scroll down to
and select 83781
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3c.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3c.png)
* Select Launch 1
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-4.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-4.png)
* Click on the Telephony tab
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-5.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-5.png)
* Scroll down to Set IMEI and select it
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-6.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-6.png)
* Insert the IMEI then click Set IMEI
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-7.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-7.png)
* You'll get a prompt saying "In order to guarantee the system to set the correct IMEI, recommended to restart the system" , select Ok
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-8.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-8.png)
* The phone will automatically restart
Method 3: IMEI Write Tool
Requirement
* PC
* Download Spreadtrum IMEI Write Tool @ https://forum.hovatek.com/attachment.php?aid=279
* Install Spreadtrum drivers using https://forum.hovatek.com/thread-827.html
* Spreadtrum phone
Procedure
* Enable USB Debugging on the phone then connect it to PC (Settings > Developer)
* Launch the Spreadtrum IMEI Write Tool
![[Image: imei_write_for_spreadtrum_phones_1.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_1.jpg)
* Click Mode Sel
* Tick Normal Mode then click Select
![[Image: imei_write_for_spreadtrum_phones_2.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_2.jpg)
* Enter the IMEI
![[Image: imei_write_for_spreadtrum_phones_3.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_3.jpg)
* Click Write
![[Image: imei_write_for_spreadtrum_phones_5.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_5.jpg)
* Wait for a few seconds and you should get a 'Passed' Message
![[Image: imei_write_for_spreadtrum_phones_6.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_6.jpg)
* Reboot the phone and the new IMEI should reflect
See the video tutorial below or @ http://youtu.be/4GSm0Z06U9M
Method 1: Engineer Mode (No Root Required)
* Dial *#*#83781#*#*
* In Engineer Mode (Under Telephony), select Set IMEI
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-6.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-6.png)
* Input the IMEI the click Set IMEI
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-7.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-7.png)
* Select OK when prompted to reboot
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-8.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-8.png)
Method 2 : Shortcut Master (Root Required)
Requirement
* Rooted phone
* Install Shortcut Master (lite) @ http://hovatek.com/redirect.php?link=htt...lite&hl=en
Procedure
* Launch Shortcut Master (lite)
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-0.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-0.png)
* Press the Menu button and select Secret Code Explorer
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-1.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-1.png)
* Wait for loading to begin and complete
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3.png)
* You should see a list of apps
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3b.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3b.png)
* Scroll down to
Code:
83781
EngineerMode
EMStartReceiver
and select 83781
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3c.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3c.png)
* Select Launch 1
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-4.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-4.png)
* Click on the Telephony tab
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-5.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-5.png)
* Scroll down to Set IMEI and select it
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-6.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-6.png)
* Insert the IMEI then click Set IMEI
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-7.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-7.png)
* You'll get a prompt saying "In order to guarantee the system to set the correct IMEI, recommended to restart the system" , select Ok
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-8.png]](https://blog.hovatek.com/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-8.png)
* The phone will automatically restart
Method 3: IMEI Write Tool
Requirement
* PC
* Download Spreadtrum IMEI Write Tool @ https://forum.hovatek.com/attachment.php?aid=279
* Install Spreadtrum drivers using https://forum.hovatek.com/thread-827.html
* Spreadtrum phone
Procedure
* Enable USB Debugging on the phone then connect it to PC (Settings > Developer)
* Launch the Spreadtrum IMEI Write Tool
![[Image: imei_write_for_spreadtrum_phones_1.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_1.jpg)
* Click Mode Sel
![[Image: imei_write_for_spreadtrum_phones_4.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_4.jpg)
* Tick Normal Mode then click Select
![[Image: imei_write_for_spreadtrum_phones_2.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_2.jpg)
* Enter the IMEI
![[Image: imei_write_for_spreadtrum_phones_3.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_3.jpg)
* Click Write
![[Image: imei_write_for_spreadtrum_phones_5.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_5.jpg)
* Wait for a few seconds and you should get a 'Passed' Message
![[Image: imei_write_for_spreadtrum_phones_6.jpg]](https://blog.hovatek.com/bpyeki/uploads/2014/10/imei_write_for_spreadtrum_phones_6.jpg)
* Reboot the phone and the new IMEI should reflect
[Tutorial] How to fix unknown Baseband version, null / invalid IMEI & SIM card not detected
Quite a number of MTK users have been having this issue on their MTK devices after flashing one ROM or another; something i call the 'Custom ROM fever'. This issue is mostly caused by wiping / corruption of the data partition. The Baseband and radio (for network signal) are controlled by the NVRAM (located in data/nvram/md/NVRAM/NVD_IMEI) and a file called MP0B_001.
Once this file is missing or the NVRAM partiton is corrupted, your phone's IMEI and radio functionality cease to exist. There are several methods to fix this:
# See the video tutorial below or @ http://youtu.be/tAK1DL_L_eg
*Note:
+ Go to Settings > About and check Baseband. If it says Unknown then flash the Stock ROM / Firmware using Sp flash tool @ https://forum.hovatek.com/thread-159.html to regain Baseband
+ For Samsung phones, use this method @ http://forum.hovatek.com/showthread.php?tid=310
1. MP0B_001 Method
1. Download ROM toolbox lite from Playstore
2. Download IMEI.zip (to create a new IMEI file) 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 you just created on your desktop
* NOTE cd\ then enter (returns to root directory)
Press Enter (goes up one directory)
Press Enter (navigates to a folder called foldername)
4. A faster method is to open the imei.exe containing folder > Hold down Shift > Right-click on an empty space > Select "Open Command Window here"
5. When you're inside the imei folder in command prompt, type
imei.exe <15digit_imei_1> <15digit_imei_2>15digit_imei_2>15digit_imei_1>
eg
6. Press Enter
7. If both IMEIs you gave are of the correct format, a file named MP0B_001_NEW will be created. Rename it MP0B_001.
8. Now you can send it to the sd of your phone
9. Install ROM toolbox lite then go to root explorer
10. In root explorer, delete the existing MP0B_001 file (located @ device/data/nvram/md/NVRAM/NVD_IMEI) and replace with the one you just created
11. Long press the new MP0B_001, go to permissions and tick all 9 boxes at the top then select ok (don't tick special pernissions)
12. Restart your phone
13. Your SIMs should be detected, IMEI reflect and Baseband version change from unknown to what it should be.
* Note that getting this done might not be this direct due to different scenarios but replacing the MP0B_001 file is the ultimate goal in order to fix the issue.
2. IMEI Replacement Method
This method involves the use of MTK droid tools and is only applicable when your SIM cards are detected but IMEI is invalid or null. To do this:
1. Download MTK droid tools
2. Download PdaNet
3. Enable USB debugging on the phone then connect it to the PC (don't enable mass storage)
4. Install PdaNet on the PC with the phone connected; you should get a message saying drivers installed successfully.
5. Extract then launch MTK droid tools on the PC (still with phone connected to PC)
6. MTK droid tools should detect and display your phones details
7. Click on IMEI/NVRAM
8. Supply the IMEI(s) then click replace
9. Restart your phone if it isn't automatically restarted
10. Your IMEI issue should have been resolved
3. NVRAM Restore Method
* Note that you need a working phone of the same model to backup NVRAM first
1. Download MTK droid tools
2. Download PdaNet
3. Enable USB debugging on the GOOD phone then connect it to the PC (don't enable mass storage)
4. Install PdaNet on the PC with the phone connected; you should get a message saying drivers installed successfully.
5. Extract then launch MTK droid tools on the PC (still with phone connected to PC)
6. MTK droid tools should detect and display your phones details
7. Click IMEI / NVRAM
8. Click Backup
9. When backup is complete, open the MTK Folder > BackupNVRAM to confirm that backup was successful
8. Connect the phone with Basebrand / IMEI error to the PC still with MTK droid tools open
9. Still under IMEI / NVRAM, click Restore
10. Select the appropriate files from the windows that pop up
11. Reboot the phone once the procedure is complete
4. Engineering Mode Method
1. Download and Install Mobile Uncle then grant superuser permission. You could also use MTK Engineering Mode
2. Select Engineer mode
3. Select Engineer mode (MTK)
4. Navigate to the Connectivity tab
5. Select CDS information
3. Select Radio Information
4. At Phone 1: Insert the command below then click Send at command
5. At Phone 2: Insert the command below then click Send at command
5a. If you get an error like "This command is not allowed in user build" then leave a space between AT+ and EGMR as show below
6. Go back to Mobile uncle home screen
7. Click on Engineer Mode
8. Select Engineer mode (Android)
9, Select Phone information
10. Click Turn on radio
5. SN Write Tool (SN Writer) method
See the guide @ https://forum.hovatek.com/thread-12306.html
6. Maui META method
See the guide @ https://forum.hovatek.com/thread-12328.html
7. Chamelephon method
See the guide @ https://blog.hovatek.com/how-to-fix-null...arshmallow
Once this file is missing or the NVRAM partiton is corrupted, your phone's IMEI and radio functionality cease to exist. There are several methods to fix this:
# See the video tutorial below or @ http://youtu.be/tAK1DL_L_eg
*Note:
+ Go to Settings > About and check Baseband. If it says Unknown then flash the Stock ROM / Firmware using Sp flash tool @ https://forum.hovatek.com/thread-159.html to regain Baseband
+ For Samsung phones, use this method @ http://forum.hovatek.com/showthread.php?tid=310
1. MP0B_001 Method
1. Download ROM toolbox lite from Playstore
2. Download IMEI.zip (to create a new IMEI file) 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 you just created on your desktop
* NOTE cd\ then enter (returns to root directory)
Code:
cd..
Press Enter (goes up one directory)
Code:
cd foldername
Press Enter (navigates to a folder called foldername)
4. A faster method is to open the imei.exe containing folder > Hold down Shift > Right-click on an empty space > Select "Open Command Window here"
5. When you're inside the imei folder in command prompt, type
imei.exe <15digit_imei_1> <15digit_imei_2>15digit_imei_2>15digit_imei_1>
eg
Code:
imei.exe 123456789111111 123456789111124
7. If both IMEIs you gave are of the correct format, a file named MP0B_001_NEW will be created. Rename it MP0B_001.
8. Now you can send it to the sd of your phone
9. Install ROM toolbox lite then go to root explorer
10. In root explorer, delete the existing MP0B_001 file (located @ device/data/nvram/md/NVRAM/NVD_IMEI) and replace with the one you just created
11. Long press the new MP0B_001, go to permissions and tick all 9 boxes at the top then select ok (don't tick special pernissions)
12. Restart your phone
13. Your SIMs should be detected, IMEI reflect and Baseband version change from unknown to what it should be.
* Note that getting this done might not be this direct due to different scenarios but replacing the MP0B_001 file is the ultimate goal in order to fix the issue.
2. IMEI Replacement Method
This method involves the use of MTK droid tools and is only applicable when your SIM cards are detected but IMEI is invalid or null. To do this:
1. Download MTK droid tools
2. Download PdaNet
3. Enable USB debugging on the phone then connect it to the PC (don't enable mass storage)
4. Install PdaNet on the PC with the phone connected; you should get a message saying drivers installed successfully.
5. Extract then launch MTK droid tools on the PC (still with phone connected to PC)
6. MTK droid tools should detect and display your phones details
7. Click on IMEI/NVRAM
8. Supply the IMEI(s) then click replace
9. Restart your phone if it isn't automatically restarted
10. Your IMEI issue should have been resolved
3. NVRAM Restore Method
* Note that you need a working phone of the same model to backup NVRAM first
1. Download MTK droid tools
2. Download PdaNet
3. Enable USB debugging on the GOOD phone then connect it to the PC (don't enable mass storage)
4. Install PdaNet on the PC with the phone connected; you should get a message saying drivers installed successfully.
5. Extract then launch MTK droid tools on the PC (still with phone connected to PC)
6. MTK droid tools should detect and display your phones details
7. Click IMEI / NVRAM
8. Click Backup
9. When backup is complete, open the MTK Folder > BackupNVRAM to confirm that backup was successful
8. Connect the phone with Basebrand / IMEI error to the PC still with MTK droid tools open
9. Still under IMEI / NVRAM, click Restore
10. Select the appropriate files from the windows that pop up
11. Reboot the phone once the procedure is complete
4. Engineering Mode Method
1. Download and Install Mobile Uncle then grant superuser permission. You could also use MTK Engineering Mode
2. Select Engineer mode
3. Select Engineer mode (MTK)
4. Navigate to the Connectivity tab
5. Select CDS information
3. Select Radio Information
4. At Phone 1: Insert the command below then click Send at command
Code:
AT+EGMR=1,7,"IMEI1"
5. At Phone 2: Insert the command below then click Send at command
Code:
AT+EGMR=1,10,"IMEI2"
5a. If you get an error like "This command is not allowed in user build" then leave a space between AT+ and EGMR as show below
Code:
AT+ EGMR=The rest of the code
6. Go back to Mobile uncle home screen
7. Click on Engineer Mode
8. Select Engineer mode (Android)
9, Select Phone information
10. Click Turn on radio
5. SN Write Tool (SN Writer) method
See the guide @ https://forum.hovatek.com/thread-12306.html
6. Maui META method
See the guide @ https://forum.hovatek.com/thread-12328.html
7. Chamelephon method
See the guide @ https://blog.hovatek.com/how-to-fix-null...arshmallow
Sunday, October 2, 2016
Uni-Android tool
1. Read info-
2. Eneter to fastboot mode
3. Eneter to recovery mode
4. Eneter to download mode
5. wipe data
6. Reboot device
7. Check device on fastboot mode
8. wipe data/cache on fastboot mode
9. check device in normal mode
0. Kill ADB Server
A. Start ADB Server
B. Reset Gmail Account
R. Root
U. Unroot
G. Show registered Gmail in Device
D. Install apk's
W. Wipe data on Fastboot/ Spreadtrum
E. Exit fastboot mode
L. Get Hardware info-
S. Get Software info-
K. Check connection
H. ADB Help
F. Reset face/Gesture Lock
V. Visit us
Downlaod
Saturday, October 1, 2016
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