jhong
Super Moderator
May natira pa .... 
Samsung A847 AT&T lock ..
UNLOCK INSTRUCTIONS:
Read codes only
USB cable :
1. Phone must be powered on.
2. Type *#782872# to switch phone to Qualcomm USB mode,
(after operations you can enter *#726872# to switch back to Samsung USB mode.)
3. Connect USB cable, install drivers.
4. Select diagnostic port in port settings.
5. Enter *#7465625# (phone must display locks status).
6. Press 'Read codes' to read security codes.
Done with Samsung Tool PRO v.24.1

Samsung A847 AT&T lock ..
UNLOCK INSTRUCTIONS:
Read codes only
USB cable :
1. Phone must be powered on.
2. Type *#782872# to switch phone to Qualcomm USB mode,
(after operations you can enter *#726872# to switch back to Samsung USB mode.)
3. Connect USB cable, install drivers.
4. Select diagnostic port in port settings.
5. Enter *#7465625# (phone must display locks status).
6. Press 'Read codes' to read security codes.
Done with Samsung Tool PRO v.24.1