pls oooooooo, kindly help before it turn to big issue, Recently, I discover that after opening one or two pages in my HTC sensation 4g, just for me go back to the home page, it reboot itself, before opening the home page.; what I mean is dat it shows white background with HTC logo for few seconds then it changes to homepage.

That is an OS error. You should do a hard reset (while phone is turned on, hold power button for about 10secs).

That doesn't work? Do a factory reset.

That doesn't work either. Two things are involved. If you bought the phone new and is still under warranty, take it to the shop. On the other hand if its used or you've exceeded warranty period or broken your warranty, flash with a computer. (Google should come in here for articles on that).

thanks very very very much, done, through hard reset.