1. maulopal's Avatar
    Hi all,

    Is there any method to downgrade 3GS 3.1 with modem firmware 5.11.07?

    Best Regards.
    2009-10-05 01:42 PM
  2. Simtech's Avatar
    Only if your 3.0 ECID file are saved on Cydia.
    2009-10-05 02:25 PM
  3. Madman604x's Avatar
    youre baseband is stuck forever though
    2009-10-05 03:13 PM
  4. maulopal's Avatar
    How do i check if ECID is in Cydia?

    I did the JB process explained here: http://modmyi.com/forums/general/685...1-windows.html

    But Cydia was not installed in the iphone.
    2009-10-05 04:23 PM
  5. L00i3's Avatar
    How do i check if ECID is in Cydia?
    Follow this guide

    Caching Apple's Signature Server - Jay Freeman (saurik)

    If your info is on file, the downgrade will be successful. If it's not, then you won't downgrade.
    2009-10-05 05:05 PM
  6. Simtech's Avatar
    If Cydia was not installed, then you don't have the files.
    2009-10-05 05:22 PM