Phone keypad lights up but no screen on

same same

when i attempt to turn it one the keypad and camera lights turn on but the phone is still not able to work,and i tryed plugging it into thre comoputer and charge it but then the on button goes half red??oh yh and after a while it stopped doing the keypad and camera light altogether...oh when i put it in socket charging the keypad light came back..

when i attempt to turn it one the keypad and camera lights turn on but the phone is still not able to work,and i tryed plugging it into thre comoputer and charge it but then the on button goes half red??oh yh and after a while it stopped doing the keypad and camera light altogether...oh when i put it in socket charging the keypad light came back..

my k850 keypad light up but screen do not show my k850 keypad light up but screen do not show

Phone froze whilst talking on it & now just lights up when on charge. Not good!!! Phone froze whilst talking on it & now just lights up when on charge. Not good!!!

any1 knows how to solveit ? please help me ... 

any1 knows how to solveit ? please help me ... 

I just had the same problem as you. I put my phone on to charge, and the key pad lit up, then I unplugged it and blew in the battory part and still only the key lit up, so I took the sim card and memory stick out and key pad lit up, so I puts them both back in and STILL NONTHING, Only keypad lighting up

I just had the same problem as you. I put my phone on to charge, and the key pad lit up, then I unplugged it and blew in the battory part and still only the key lit up, so I took the sim card and memory stick out and key pad lit up, so I puts them both back in and STILL NONTHING, Only keypad lighting up

Every time I navigate my Sony Ericsson K850i the screen turns into
black screen but after a couple of seconds (usually when the light's
OFF) and I try to press any key it will return to the last transaction
i've made (before it turns into black screen).

Every time I navigate my Sony Ericsson K850i the screen turns into black screen but after a couple of seconds (usually when the light's OFF) and I try to press any key it will return to the last transaction i've made (before it turns into black screen).

Every time I navigate my Sony Ericsson K850i the screen turns into black screen but after a couple of seconds (usually when the light's OFF) and I try to press any key it will return to the last transaction i've made (before it turns into black screen). Every time I navigate my Sony Ericsson K850i the screen turns into black screen but after a couple of seconds (usually when the light's OFF) and I try to press any key it will return to the last transaction i've made (before it turns into black screen).