UMT not repair imei samsung l9301l

Hello friends of support tools umt ‘m trying to repair the
IMEI of the phone samung l9301l already rooted give it to
repair imei makes me whole procedure ok but the time to check
the IMEI not to repaired and followed the instructions of the
software restarting hand until he made ​​a hard rest and nothing
will not repair the IMEI and connect diag mode normal mode
zilch not repair the IMEI hope your help Cheers