[QUOTE=ahmed;2127621]No , i changed IMEI , still the same , problem arose after de customising , i have spoken to ericsson technician , RF values need to be recalculated .
http://forum.gsmhosting.com/vbb/showthread.php?t=355013
then just use the gdfs file muppet suggested , flash to main PDA part of phone, NOT gdsf area,. and your phone will be fine