[Q]To whom had ever lost their IMEI (IMEI=0), please help.

[poe]

I have a XT925 and when I got the phone the IMEI is 0. I want to recover it and followed the method in the forum. Everything is find except I typed in one digit wrong. Now it doesn't allow me to change #550 in NV again.
From my understanding so far, when you lose the IMEI, actually you are erasing the #550 in NV by flashing different ROM. If you had ever lost your IMEI, could you please tell me from which ROM to which ROM and use what method you had done? I really need to "lose" the IMEI again and start from the beginning.
Thanks first.

 

[poe]

I've tried to jump from different ICS and JB ROMs but with no success. The NV #550 is still there and I have no way to modify it... May be losing IMEI is not cause by deleting the NV #550.