[Micromax A106 Unite 2] ajiththiruvatta:
REQUIREMENTS

One week after i brought my phone, I accidently formatted my device using sp flash tools and lost the IMEI/NVRAM. It has been a real pain for me to repair it because i was new to an mtk device. Finally figured out how to repair by doing many search. So I made this thread to share the working methods to help those people who are suffering from invalid IMEI :D

So let's start.

Always remember "Prevention is better than cure". If you are planning to flash a custom rom, First of all Backup your IMEI. Don't Trust that a custom ROM flash will not delete your IMEI number. because odds are it will. It's important to store your backup to external SD because some ROM flashing techniques will erase your internal SD. so the best way to keep your IMEI number is to take my advise and make a backup.

Some Video tutorials will be added soon :D

DISCLAIMER: Do not do try any of these methods unless your IMEI has been lost! Doing so may permanently corrupt your imei partition.​

IMEI Backup & Restore Methods:

1. Mobile Uncle Tools:

1. Open the App,

2. Select IMEI BACKUP RESTORE (MTK)

3. Choose BACK UP TO SDCARD (MTK)

4. Reboot

>> (to restore, choose restore from sd card)

2. MTK Droid Tools [PC Required]:

1. Switch on the phone and connect it to pc.

2. Go to settings->about phone.

3. Tap build number for 7 times.

4. Go back and enter developers options, and check usb debugging on.

5. Start MTK Driod Tools and click root. grant root permission in phone.

6. Click IMEI/NVRAM and click backup or restore as required.

>> (to restore, choose the backup file from nvram backup folder)

Temporary IMEI Restore (without Backup):

(These are Temporary Methods, so you need to do this every time you upgrade Firmware, install a new rom, or doing a factory reset.)

1. Chamelephon

1. Install Chamelephon.apk

2. Open App

3. Type both IMEI Numbers

4. Click "Apply new IMEIs"

5. Reboot

Video Tutorial

[YOUTUBE]E5jXf0k5ddY[/YOUTUBE]

2. MTK Droid Tools [PC, ADB Drivers Required]

1. Enable USB debugging

2. Open MTK Droid tools in PC

3. Allow USB debugging in phone if asked

4. Click ROOT button in MTK droid tools

5. Click Yes and Grant/Authorize root permission in phone

6. Click IMEI/NVRAM option in MTK droid tools

7. Type both IMEI numbers

8. Select "Replace IMEI"

9. Click OK

10. Reboot!

Video Tutorial

[YOUTUBE]q3UriWHQL3Q[/YOUTUBE]

2. NVRAM Wifi Error

1. Download "NVRAM Wifi Fix.zip"

2. Enter Recovery

3. Install the zip

4. Reboot

Permanent IMEI Restore(without Backup):

1. Maui META 3G Tool

[YOUTUBE]watch?v=Llbo5_dCEi4[/YOUTUBE]

1. Install "Maui META 3G Tool" on your PC

2. Open it.

3. Click "Options ↦ Connect Smart phone into META mode"

4. Click on Reconnect button

5. Switch off your phone

6. Connect via USB Cable

7. Change "Get Version" to "IMEI Download"

8. Click "Change NVRAM Database file"

9. Download & extract "NV Ram Database Files.rar"

10. Select "BPLGUInfoCustomAppSrcP_MT6582_S00_MOLY_WR8_W1315_MD_WG_MP_V5_1_wg_n"

11. Type both IMEI numbers

12. Click "Download to flash"

13. Click "Upload from flash"

14. Close the IMEI Download Tab

15. Disconnect

16. Switch on the phone.

2. IMEI&SN Writer

Didn't tried this method. Hope this too will work! :D

1. Flashing NVRAM.bin (Recommended for Lolipop Roms )

1. Install SP flash tool

2. Load Scatter file

4. Now press download

5. Connect your phone without battery

6. Insert battery & turn on your device when you see the green tick.

new blog under construction:

for broken links, and other video guides, click here

DOWNLOADS

MOD EDIT - ALL THE LINKS ARE REMOVED SINCE XDA RULES DO NOT PERMIT PAY PER CLICK.

I really worked hard to make this thread. Hit THANKS button if you found this useful :D

You can add your experience in fixing imei below on this thread. It may help many others! Always remember, Sharing is caring! Thank You.