Prøv dette. (Krever root)

1. Download QPST
2. Write down your IMEI (you can find it on the back of the phone behind the battery)
3. Turn on your phone
4. Open the keypad and dial *#22745927
5. Enable hidden menu
6. Go back to the keypad and dial *#7284#
7. Click Qualcomm USB Settings
8. Select RMNET + DM + MODEM and click ok
9. On your computer, open up Device Manager
10. Locate Ports (COM & LPT) and expand it
11. Write down (COM10) (yours may be different, just write it down)
12. Open up QPST
13. Select Ports & Add new port...
14. Enter your port (mine was (COM10) so I will put "COM10" in BOTH boxes)
15. In QPST select Start Clients and RF NV Item Manager
16. In RF NV Item Manager go to Settings -> Comport
17. Select your port from the drop menu and press ok
19. Under "File" choose Read Supported NV RF Items
20. From the list of items navigate to number 550
You will see 9 text boxes. This is where you will put in your IMEI.
It`s weird how it`s ordered so follow this EXACTLY.
You will need to enter your IMEI from left to right, but backwards.
Here`s what I mean: ***Make sure the Hex box is checked***
Code: EXAMPLE: Say your IMEI is 954091051099226
The boxes would look like so: 8 (This must go in the first box) 9a (The "a" represents the fact that the last pair only consists of 1 number) 45 90 01 (this can be written as 1 as well) 15 90 29 62 21. Once you enter in the data, press Write NV 22. Reboot your phone (remember to put your phone back to MTP + ADB by dialing *#7284#)

Kilde: http://www.askmefast.com/Change_IMEI....html#q2929915