REFERENCE samsung scl21 s3 au japan unlock no need box

vargasv24

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share ko lang sir di ako ang orig uploader nito.i found it another forum also.
para makatulong dn po.:)


1. Dial *#9090# or *#0011#
2. Press Menu > Back
3. Press Menu > Key Input then type Q (yes that is correct) and hit OK
4. Press Menu > Key Input then type 0000 (that is four zeroes) and hit OK. Wait a couple of seconds and the Service Menu (DIAG CONFIG) will open up.

Unlocking steps are as follows.

1. Press UMTS > DEBUG SCREEN > PHONE CONTROL > NETWORK LOCK > PERSO SHA256 OFF. Wait 30 sec, then hit Menu > Back until you see NETWORK CONTROL at the bottom.
2. Press NETWORK CONTROL > GCF > GSM/(E)GPRS/WCDMA REL5. Then hit Menu > Back until you see BAND SELECTION.
3. Press BAND SELECTION > GSM > GSM ALL
4. Turn off your phone, put in a new SIM card and see if it worked.

thankyou.:)
 
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