Failed Unlock Sprint iphone 4s iOS 6.1.3 with R-sim 8_PLS HELP

[solop]

Hi guys,

I have Sprint iphone 4s on iOS 6.1.3. I used Rsim 8+ to unlock the phone for AT&T so many times, but DID NOT succeed. Here are steps I did:

- Restore original iOS 6.1.3, and apply "erase all data and setting" in setting
- Get the phone activated in Itunes for CDMA network
- Installs patch "irOsetool". In profile, "chinasnow" showed verified.
- Reset phone, put "AT&T nano sim" onto r-sim 8+ with blue face on top/golden bottom in micro-sim tray, and plug in
- Phone showed searching --> no service --> phone needs activating --> (about 3-5 minutes) shows signal bar on the top left which is from r-sim network, not AT&T.
- Tried to make a phone call, after ringing it was saying "this phone is not authorizing to make phone call" with the strange male voice (seems programming in r-sim)

I bought the r-sim 8+ from an ebay seller in China named "kinlungjoytin". I wonder if I missed any step of unlocking process or the r-sim 8+ was a fake one??

Also, before this r-sim 8+, I already tested with other 02 GPP sim for Sprint iOS 6.1.3, but did not succed.

Please review and help. I am deperating the unlock after 03 times. Thank you very much.

[solop]

any one can give me a clue? Thanks a lot

[salalha]

You have to put the MMSI code of at&t

[solop]

Originally Posted by salalha

You have to put the MMSI code of at&t

Could you be more specific how we put the MMSI code?
Sorry for nob.
Thanks

[solop]

I think this is what you meant:

Select your Carrier from R-SIM AIR Auto-menu or go to Settings > Phone > SIM Application and add the 7 digits IMSI of your iPhone carrier from the list then restart

Will try tonight

[solop]

Originally Posted by salalha

You have to put the MMSI code of at&t

There's no "sim application" under "setting/phone" while AT&T+r-sim plugged in for my Sprint 4s. Anyone has an idea how to change the MMSI AT&T code in this case?

Thanks a lot