Bootloop even after full wipe many times

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http://forum.xda-developers.com – Okay first of all, my phone was working fine but suddenly i had to use the GSII_repair app from the market since my phone cannot suddenly detect any simcards. I used the 1-2 steps in the app since it said i had to reboot. Then after that It went to a bootloop, tried flashing stock ICS rom it works but the phone suddenly turns off everytime before the S logo finishes its animation! what could be the problem?:( (HowTos)