EFS image restore from another device

Hi,

I have a Galaxy Nexus I9250 (Canada Rogers). I did the big mistake of formatting all partitions (including /factory efs image) and lost my IMEI. Now it's got the generic 004999010640000 IMEI.

My friend was kind enough to take a backup of his own (I9250) device IMEI and shared it with me.

Is it possible to restore and EFS image of another similar device?

I did the following but still the IMEI is generic.

|root@android:/data/radio # dd if=/sdcard/efsFriend.img of=/dev/block/mmcblk0p3 bs=4096
img of=/dev/block/mmcblk0p3 bs=4096 <
5120+0 records in
5120+0 records out
20971520 bytes transferred in 2.581 secs (8125346 bytes/sec)


I have also tried fuxkDocomo (****Docomo) and lots of other workarounds.