3G not working after ICS downgradeSupport


Last Updated:

  1. cdamy

    cdamy Member

    Hi guys. I live in Greece and I have a beautiful Samsung SII GT-i9100 which I bought online and did not receive with any strings attached. About 2 motnhs ago I upgraded to ICS; it looked like a logical decision at the time, but it went south pretty fast.

    The phone ate away at the battery and it lagged horrendously, something my 2-core phone never did before. Very often it would hang needing a hard restart (take out battery) or even restart itself. I spent about a month trying to cope and because I didn't know how to reverse it.

    But I coulldn't cope any more so I decided to downgrade (but not to ROOT, I'm still in unsure whether I understand enough). I read up on it and it soon became clear it was doable.

    The hard part was getting the right ROMs (and it still is). I looked for 'the right' kind of Gingerbread but to no avail; most links were either dead or a trap (admiralackbar . jpg). Finally I struck on some promising ROMs (3 in number, of which 2 work for me).

    I used Odin3_v1.3 and flashed my phone with:
    1. GT-I9100_INU_I9100XWKL1_I9100ODDKL1_I9100DDKL1.tar.md5, and
    2. GT-I9100_ORS_I9100XWKJ1_I9100OXXKJ1_I9100XXKI4.tar.md5 .

    Both worked fine and I thank my lucky stars my phone is up and running again, just like before.

    Only thing I can't seem to resolve is that 3G/GPRS stopped working. I called the phone company (WIND HELLAS S.A.) and they said that everything was OK on their part.

    I tick the 'User Packet Data' box which used to bring up the 3G/GPRS icon (sooner or later) and provided said conectivity. Now, nothing. Any ideas or opinions more then welcome. Also questions!

    Could be some app blocking it?

    tl;dr
    Downgraded Galaxy SII form ICS to Gingerbread and now 3g/GPRS won't work. Halp!

    Advertisement
  2. Ian Harding

    Ian Harding Member

    Did you clear data with a factory reset after flashing the new firmware?

    If not, there could be something from ICS left behind which is affecting connectivity.
  3. cdamy

    cdamy Member

    Yes, I did it at least twice, though not sure with what order, so your suggestion may have merrit.

    I will back-up, reset, flash and report back on Monday most likely.

    Thx, I feel a glimmer of hope already! :)
  4. cdamy

    cdamy Member

    So, I'm back with news and apologies for being later than I promised.

    I reset to factory default twice and I found these two facts out:

    1. I've installed a Danish version (though I can switch to any language afterwards - I thank my Germsn for that!) and
    2. GPRS works after the reset up until I switch on WIFI and connect to a network, afterwards I cannot make come on by any means.

    Any opinions or suggestions?:confused:
  5. cdamy

    cdamy Member

    It was the IPNs!!!1!

    For G*D knows what reson the software deleted the Provider's APNs after first run and 3G/GPRS configuration became untenable.

    All I had to do was restore the defaults.

    Yatta!:D

Share This Page