1. n0n0_no's Avatar
    Trying to help a friend out, i dont know what she did but right now her 3gs says "no sim card installed (insert a valid sim with no PIN lock to activate phone)". What can i do to get pass that and have access to the phone. I also do plan on unlocking it also but i don't know which version its currently on, neither does her.
    2011-05-10 07:29 PM
  2. Simon's Avatar
    Do you have a sim card from the carrier the phone is locked to?
    2011-05-10 07:44 PM
  3. n0n0_no's Avatar
    no, but im pretty sure it was locked to at&t,i might have a old at&t sim card lying around, do you think that will do the job
    2011-05-10 07:54 PM
  4. Simon's Avatar
    Ya, that will get you past the emergency call screen
    2011-05-10 08:21 PM
  5. n0n0_no's Avatar
    but just incase i dont find it, is there another way? i remember that reading that you can download a program, i think limerain to be exact that can resolve this issue
    2011-05-10 08:42 PM
  6. Simon's Avatar
    2011-05-10 08:43 PM
  7. n0n0_no's Avatar
    thanks simon, got it passed the emergency call screen. Its currently running on 4.2.1 bb 5.15.04, whats the best thing to do now to jailbreak and unlock it?
    2011-05-11 12:54 AM
  8. Simon's Avatar
    That depends if you have old or new bootrom. You can use idetector to find that out.
    2011-05-11 01:04 AM
  9. n0n0_no's Avatar
    quick question simon, what if a 3g was locked and running on 4.2.1, its very laggy, what can i do to stop the lagging and also unlock it?
    2011-05-11 02:21 AM
  10. Simon's Avatar
    They are generally a bit laggy on 4.2.1. I thought you said it was a 3GS though?
    2011-05-11 02:22 AM
  11. n0n0_no's Avatar
    i also have a 3g which is on 4.2.1
    2011-05-11 06:00 AM
  12. Simon's Avatar
    A 3G will always be a bit laggy on 4.X and up. You can always downgrade back to 3.1.3 if you want but that wont help you unlock.
    2011-05-11 06:04 AM
  13. n0n0_no's Avatar
    so what your saying is that i can downgrade, but i wont be able to unlock it? and in order to downgrade don't i need something saved in tiny umbrealla, shsh i think its called?
    2011-05-11 06:31 AM
  14. Simon's Avatar
    You can unlock it with the iPad baseband now (you will lose gps though) and then downgrade after. Or just stay at 4.2.1 and see how it goes after you unlock.

    iPhone 3G doesn't need SHSH for firmware lower than 4.0.
    2011-05-11 06:35 AM