Unhappy [Q] My phone is not starting up

Please help after i use Android Partition Manager then I changed a img file (I don't what I have done) and I accidentally dropped my phone my battery was disconnected from my phone and then when I put the battery my phone don't start up anymore it doesn't play the boot animation only at android logo please help me, I love my phone and I already broke my tablet please help me.. My phone is rooted with Kingo Android ROOT and may power button is stucked (so when I put my battery it automatically start up). My phone is a DTC GT5 Astroid Plus with android 2.3.6
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