1. AppleFan21's Avatar
    I recently bought a used 3GS that had the 4.1 firmware and 6.15 BB on it. Without thinking, I upgraded to 4.2.1 without saving the SHSH. Now I'm on 4.2.1 with the 6.15 BB and I have the tethered jailbreak and ultrasn0w 1.2 installed. However, I get "No Service" when I enter my T-Mobile SIM card. I've tried everything from Airplane mode to Resetting Network Settings. Can anybody please help me?
    2011-01-21 08:42 AM
  2. Turnamental's Avatar
    I recently bought a used 3GS that had the 4.1 firmware and 6.15 BB on it. Without thinking, I upgraded to 4.2.1 without saving the SHSH. Now I'm on 4.2.1 with the 6.15 BB and I have the tethered jailbreak and ultrasn0w 1.2 installed. However, I get "No Service" when I enter my T-Mobile SIM card. I've tried everything from Airplane mode to Resetting Network Settings. Can anybody please help me?
    If it was unlocked on 4.1 with BB 6.15.00 then you should most def have the shsh saved on Cydia.

    Downgrade to custom 4.1 ipsw and JB/Install Usn0w...

    I say just keep 4.2.1 and follow this video to the letter

    http://www.youtube.com/watch?v=0I1dNq5g3Kk&feature=youtube_gdata_player
    Last edited by Turnamental; 2011-01-21 at 08:59 AM.
    2011-01-21 08:48 AM
  3. DevouredDreams's Avatar
    did you turn 3g off?
    2011-01-21 09:01 AM
  4. i88ram's Avatar
    your kinda lucky man,
    you are able to get to
    the springboard..i cant
    even get there..im stuck
    in emergency call for
    bout 3days now..ive
    done all the guides but
    it isnt working for me..

    3gs 4.2.1
    baseband 6.15.00
    stuck un emergency call
    2011-01-21 09:31 AM
  5. AppleFan21's Avatar
    It was NOT unlocked on 4.1
    2011-01-21 06:40 PM
  6. i88ram's Avatar
    so what should i do now?
    help me outta here
    emergency call screen..
    2011-01-22 12:22 PM
  7. Aydn's Avatar
    common problem. you should utilize the search button.

    replace the lockdown folder as per

    easy way to solve diff sim detected (emergency mode ) after jailbreak - GSM-Forum
    2011-01-22 12:31 PM
  8. i88ram's Avatar
    Thankz a lot!!! It worked!!!
    2011-01-22 11:03 PM
  9. Aydn's Avatar
    Click the thanks button
    2011-01-22 11:06 PM
  10. i88ram's Avatar
    how about this kind of 3gs problem?

    Unclickable WiFi button,
    Unclickable Bluetooth button,
    no IMEI
    no ICCID
    and no MODEM FIRMWARE..

    and then in 5-10mins it just
    restarted itself..


    later its in 4.2.1,ive
    downgraded it to 4.1

    but still the same..



    http://mail.aol.com/33124-111/aol-1/...wMail&partId=2

    http://mail.aol.com/33124-111/aol-1/...wMail&partId=2
    Last edited by i88ram; 2011-01-23 at 12:38 AM. Reason: Automerged Doublepost
    2011-01-23 12:38 AM
  11. AppleFan21's Avatar
    I'd appreciate it if you'd stop hijacking my thread.....can anybody else help me?
    2011-01-23 09:51 PM
LINK TO POST COPIED TO CLIPBOARD