I cannot switch on my sony ericsson k750i set.

On the side where yuu can turn your volume up and down for the phone the brightness is just turned up, press the down button to make it return to normal. Try that

ic is fault change the display..........

1.repair erom
2.flash main. K750i_CXC125955_HongKong_R1CA021_Red49.ck75sw
3.flash fs. K750i_CXC125953_HongKong_R1CA021_Red49.ck75fs
4.Customize FS
5.Shutdown FS

the Memory Stick might be corrupted, that is why ur phone behaves like this. try formatting ur memory Stick and then use it

Hi there,

Have you charged the battery up for a long time ? sometimes if the battery is low on power it will power up the device and then close it off due to the low power.

If that is not the case then it seems that there could me a Software or hardware problem ! the only way of solving these problems would be to goto the sony ericsson Support website at www.sonyericsson.com and from there search for your phone, if that fails, try calling your Mobile Carrier or Sony ericsson Direct !

Hope this Helps !?

when you switch on your sony k750 a white color appear on screen an blinks and turn off..? if does, your phone software needs to be updated.

You can download your software through this link..

http://www.sonyericsson.com/cws/support/softwaredownloads/detailed/updateservice/k750i?cc=ph&lc=en

Read the instruction before you download. after you install the software to your computer make sure that your phone battery is in full charge when updating your phone.

sir problem with software so contact hardware vendor or service centre for support

replace the lcd screen . but chake for softwere pro also.

It might have got moisture content in it. Get to a repair centre and have unloc code ready before hand.

Change the set