Annoying problem with tmobile galaxy s2?

Bailey C

New member
My screen brightness is all the way up but whenever I'm on the internet the screen dims. When I go back to my home screen or anything else. It goes back to normal. Power saving mode isn't on. Any help?? I just did a master reset. Since then this has been happening. I can't find any settings in my internet. Oh and my auto brightness thing isn't on. Help!! Someone told me my phone needs to be updated but when I try it says "no firmware"soooooo???? My android thing is 2.3.6. I don't use any kind of app for my internet
 
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