not booting

[tamrat_a]

My SGS was confiscated at school about 2 months ago by the school adminstration because bringing phones to schools wasn't allowed. I had removed the battery and SIM when it was confiscated. By then it was running on Onecosmic's ICS 4.0.3 RC3.1 ROM. It was working perfectly with a custom boot animation. Today I got my SGS back and it wont fully boot. When I turn it on I can see the Galaxy S GT-I9000 text plus the 'WITH OUR POWERS COMBINED WE ARE...PLATYPUS KERNEL' logo but it stays black after this. The menu and back button light up on touch but there is no response or activity on the screen.

I have tried almost everything from wiping every data to re-rooting it, blah...blah. I installed 2.3.5 and it works, 2.3.6 ValuePack works too and even CM7 works fine. But it won't accept ICS. Any idea why, please help?

EDIT: I can enter both recovery mode and download mode.

[Asenath83]

Exact same problem here, happened after my browser froze and I had to pull the battery. Trying to find a way to get the photos off the internal SD card I had JUST taken before as well.

[greenman]

Going from gingerbread to ICs it is recommended that you carry out a factory reset + clear cache + clear Dalvik cache.
Not doing this can lead to freezing like you are experiencing.

[greenman]

Exact same problem here, happened after my browser froze and I had to pull the battery. Trying to find a way to get the photos off the internal SD card I had JUST taken before as well.

If your phone is frozen and soft reboot isn't working, then you may have to factory reset from recovery.
Photos on your internal sd card would not be affected, but you will lose contacts if on phone only and apps.