Very dim screen brightness
I purchased an iPhone 3GS from a guy that was claiming it was a 16GB, turns out it was only 8GB. Found him on Craigslist so I guess there was nothing I could do about it. Later I found that it had other problems, one in particular that pretty much rendered it unusable.
At random times the screen's brightness level will get extremely low, way below the slider threshold. It was barely possible to see under a bright light but I am able to tell that the iPhone is still on. I can open applications, make calls etc.
The problem randomly goes away and the brightness works perfectly normal. The iPhone was jailbroken under 4.1 with a flashed iPad 6.15.00 baseband. I went online and Googled some things on this dim screen problem. Things like restore iPhone with iTunes, let it die completely, turn up the brightness were all solutions to kind of problem. Well none of them have worked so far.
Anyone have any other possible solutions? I don't get why it works fine some times and then it doesn't.