hi friends!
ive managed to repair some (not all) CS phones, 5110 & 3210 but not 3310 and others. most way to do is to backup first Full flash,save it. Read eeprom with programmer and save. Repair with CS Repairer by Bartek or Guar. then write it back to eeprom. Now, Flash the phone with a Full LOCKED fls (from a working phone backupped). Read with nokiatool and you will see that the phone is locked normally and not EEEE FFFF. IMEI is the same as orig and on back cover. Flash again with partial flash. Now phone is alive with Network!!!
I hope this helps.
regards

Stryker