My phone is not switching on. It's a Samsung Galaxy i5503/Galaxy 5. It started automatic switch offs even on a little pressure and now it's not getting on.
Someone checked it and said they need to reinstall the software (probably the operating system, which is Android 2.2).
My question is: Can I do it manually? If yes, then how? And, if I opt for getting it done from someone, What data will be erased? I cannot afford to lose the data of my applications (like Colornote's notes).