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02-10-2014, 07:55 PM
Below is a step-by-step guide on how to fix null / invalid IMEI on a Spreadtrum Android device. Invalid IMEI could cause the phone to be unable to detect your SIM card's network meaning no calls, internet or USSD code (to check your account balance).
Null IMEI is as a result of corrupted NVRAM partition. This can happen when you flash an incompatible firmware (be it stock or custom) or make any change which affects the NVRAM partition.
If your device also has an unknown Baseband then resolve that first (by flashing the pac file) before attempting to fix the null IMEI else IMEI write attempts will keep failing.
See https://www.hovatek.com/forum/thread-27308.html
See https://www.hovatek.com/forum/thread-22075.html
See https://www.hovatek.com/forum/thread-26662.html
See https://www.hovatek.com/forum/thread-27227.html
Requirement
Important Notice
What causes null / invalid IMEI
Null IMEI is as a result of corrupted NVRAM partition. This can happen when you flash an incompatible firmware (be it stock or custom) or make any change which affects the NVRAM partition.
If your device also has an unknown Baseband then resolve that first (by flashing the pac file) before attempting to fix the null IMEI else IMEI write attempts will keep failing.
How to write IMEI to a Spreadtrum Android device
The steps below will explain how to fix Null IMEI by writing IMEI to your Spreadtrum Android device
See the video tutorial below or @ http://youtu.be/4GSm0Z06U9MWriteIMEI tool method
See https://www.hovatek.com/forum/thread-27308.html
Infinity CM2SPD method
See https://www.hovatek.com/forum/thread-22075.html
Miracle Box method
See https://www.hovatek.com/forum/thread-26662.html
NCK Pro Box method
See https://www.hovatek.com/forum/thread-27227.html
Engineer Mode method (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]](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-6.png]](https://www.hovatek.com/blog/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://www.hovatek.com/blog/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://www.hovatek.com/blog/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-8.png)
Shortcut Master method (No Root Required)
Requirement
- Install Shortcut Master (lite) @ https://play.google.com/store/apps/detai...lite&hl=en
- Launch Shortcut Master (lite)
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-0.png]](https://www.hovatek.com/blog/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://www.hovatek.com/blog/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://www.hovatek.com/blog/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://www.hovatek.com/blog/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-3b.png)
- Scroll down to
83781 EngineerModeEMStartReceiver - and select 83781
![[Image: how-to-fix-null-imei-on-a-spreadtrum-phone-3c.png]](https://www.hovatek.com/blog/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://www.hovatek.com/blog/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://www.hovatek.com/blog/bpyeki/uploads/2015/05/how-to-fix-null-imei-on-a-spreadtrum-phone-5.png)
- Scroll down to Set IMEI and select it
- Insert the IMEI then click Set IMEI
- You'll get a prompt saying "In order to guarantee the system to set the correct IMEI, recommended to restart the system" , select Ok
- The phone will automatically restart
Important Notice
- None of these tools generates an IMEI for you. They only write or (at best) crosscheck what IMEI you supply
- You can find your device's IMEI at the back of the device or on its carton
- This guide only explains how to write IMEI to your Spreadtrum phone. You are entirely responsible for what IMEI you write
- If you have an unknown Baseband (Settings > About > Baseband) then consider flashing the stock ROM first to regain Baseband before going ahead to fix IMEI
- Should you decide to opt for a dongle / box approach then ensure you have the hardware else opt for a loader version (if one is available)
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