UNLOCK INSTRUCTIONS:

Phone must be rooted!
If the software can't root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Enable 'USB debugging' in
'Settings'-'Applications'-'Development' for Android 2.x or
'Settings'-'Developer options' for Android 4.x.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Press 'Unlock' button for direct unlock.

Operation: Unlock
Selected model: SGH-I897
Software version: 20.5

Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SGH-I897
Android version: 2.3.3
Product code:
Phone version:
PDA version: I897UCKE3
CSC version: I897ATTKE3
CSC country code: USA
CSC sales code: ATT
HW version:
Phone S/N:
Modem board:
RF cal date:
IMEI:
Checking Super user right... true
Reading nv data... error

Done with Samsung Tool v.20.5
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