Cant Boot up after flashing with odin mobile

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http://forum.xda-developers.com – Hello all i tried flashing with odin mobile thing pro :) but i failed now when i boot up nothing comes up after the samsung logo. i can still use download and recovery mode (the recovery mode is from sasmung) my phone is rooted , had 2.3.3 on it and is an samsung galaxy s2 I9100 hope you guys can help me i was trying to update it to 2.3.6 can you guys help me with that too? (HowTos)