[Q] Bootloop fix help needed please

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http://forum.xda-developers.com – INFO: Model:Galaxy siii gt-i9300 ROM: Android Revolution HD 17.1 Kernel:Perseus 28.2 I installed ARHD 17.1 and I noticed that my phone wasnt so smooth as it was with v15.2.So I booted into cwm and flashed v15.2.Then I flashed ROM CLEANER.Everything was fine till I tried to reboot my phone.It stuck at samsung logo.I know that this is a constant problem here but I ve done a lot of research and didnt find exact instructions of what to do.I tried to flash CWM recovery once again with Odin.Unfortunatelly it stuck again but this time at Samsung GT-I9300 screen.Please help me if you can (HowTos)