sir if this is not the exact solution hope it will give you an idea
hope it will help u
Initial information about your device
1. Motorola Razr and Motorola Razr Maxx (XT910 Model) were named respectively Droid Razr and Droid Razr Maxx (XT912 Model) by Verizon. (I'll call it just Razr)
Both devices shares same hardware, except the radio driver/kernel, which is CDMA/LTE for Verizon version (XT912) and GSM/UMTS for International version (XT910).
This means you can only flash a ROM (custom or stock) that has being build to your Razr baseband. (Bellow you'll find a link to use CMDA custom ROMs over the GSM version)
2. All the Razr variants have a forever locked bootloader. (There's a developer version not covered here)
This means you can only flash official ROMs and use a limitated number of things. Untill a hack called kexec be released which will bypass the bootloader and let you flash a custom kernel enabling other features.
3. All the devices are divided by regions.
This means you can only flash a stock ROM designated for your Razr region.
Common Regions are: Latam (Latim America 'n Canada) - Europe - Asia - PSHAsia - ME - China - Korea - Japan(*)
Warning: By flashing a ROM or rooting your Razr voids Motorola Warranty Terms. Even if you flash the same rom your Razr came with.
1/ Install the Motorola pre-release USB 32 bits Drivers v5.9.1 on your Windows XP 32 bits PC. Make sure to install all the embedded drivers. Windows might ask you to confirm for each of them. Just go ahead.
2/ Install QPST v2.7.378. Microsoft Visual C++ 2005 Redistributable is a prerequisite.
3/ Boot up your device in BP Tools Mode (while your device is on, hold Vol-/Vol+/Power buttons for a few seconds until the screen turns black, then release Power. Another few seconds later comes up the boot menu. Release Vol-/Vol+, then quickly press Vol- a few times to highlight "BP Tools" then Vol+ to trigger it). The device will start as usual (with extra features turned on).
4/ Plug your device into your PC (USB port)
5/ Run QPST Configuration from your Windows Start menu. Switch to the second tab ("Ports") and choose "Add new port" (bottom left button). You should see a COM port associated with "USB/QD Diagnostic". Select it, then press Ok. You can close the QPST Configuration window now.
6/ Open Windows Explorer and browse to "C:\Program Files\Qualcomm\QPST\bin" (or wherever you installed QPST) and launch RF_NV_Manager.exe. In RF NV Manager, Go to "Settings / Comport". You should see your COM port in the dropdown box. Select it, then press OK.
7/ Go to "File" and choose "Read from phone". RF NV Manager will read all NV items from the phone. Now if you see item #550, you will be able to alter it (see below). If you can't find it, you're gonna have to create it first. Choose "Option / Customize NV item list", then find item #550 on the left listbox and transfer it to the listbox on the right, then Save. You should see item #550 in the main listbox now.
8/ Now comes the critical step of altering the IMEI. Select item #550 and you'll see 9 boxes on the right, a "Write NV" button and an "Hex" checkbox.
First of all, check the "Hex" checkbox.
Now, you'll have to enter the IMEI in the 9 boxes in a very specific way. Check out the explanation below, copy/pasted from [FIX/TOOL] Backup/Restore/Fix IMEI Data Restore Tool Updated - Updated 9/04/2012!!!: