happyunlock
08-04-2006, 09:14 PM
This post summarizes the results my unlock after reading many related posts & threads. Thanks for all the info provided. Unlocked a 3120 purchased on ebay with AT&T sim card, no box. IEMI begins with 356, firmware v05.01 15-11-04 RH50
Download & Used the NokiaFREE Unlock Codes Calculator v3.10. because it allowed for my model Nokia and the custom GEN/box code referenced in other posts.
Calculator Entries
Nokia
3100b (RH-50)
IMEI: [insert yours here]
USA
AT&T (Other DCT4)
MCC+MNC: 3103800 (calc'd value)
Asic 2
Custom: 32825 (GAY's) ( Note - ORIGINAL: 32779 did not work. )
I used the first code, phone showed "phone restriction off". Inserted my Cingular sim card and connected to that network without problems.
Download & Used the NokiaFREE Unlock Codes Calculator v3.10. because it allowed for my model Nokia and the custom GEN/box code referenced in other posts.
Calculator Entries
Nokia
3100b (RH-50)
IMEI: [insert yours here]
USA
AT&T (Other DCT4)
MCC+MNC: 3103800 (calc'd value)
Asic 2
Custom: 32825 (GAY's) ( Note - ORIGINAL: 32779 did not work. )
I used the first code, phone showed "phone restriction off". Inserted my Cingular sim card and connected to that network without problems.