Problem with new mobile

To be able to network unlock your mobile phone, you would need the unique unlock code first, as the code will come with the instructions. Unlock Sony Ericsson K800i by Code

solution is very simple 1.download software updater from sony site 2.install and be ready with data cord and phone with batt charged full 3.run updater and follow instructions dude its common problem with a uncomman solution

sounds like needs a new keypad membrane which i would recommend getting your local phone shop that unlocks phones repairs

software corrupted need to be flashed

my phone is the same model and did this but when i charged it, after about an hour it would come up with 'charging error stop ' and when i unplugged it, it hadn't even charged at all. and then the other day it just wouldnt charge, i plugged it in, it said it was charging but it wasnt. in the end, it worked by keeping the phone switched off and charging it while i was turned off. so try that, if not then i really dont know sorry

You need to flash the phone with correct firmware. join this forum (free), you'll learn how to flash, unlock, debrand and mod your SE phone. http://forums.se-nse.net/index.php?s=cb3baa5dabe210ea073e3b56aa6ff209&act=idx (copy and paste in browser)

I had a similar issue, whereby my phone would turn on for 30 secs then the screen would go white and the phone would switch it self off then on.

After a lot of messing around even throwing the phone around the place. I took out the memory card and the phone worked fine. When I put the card back in, the phone started misbehaving again, so I guess the card is knackered.

the phone needs to be reflash...you can do this at www.topsony.com or take the phone to a mobile center and have them do it for you

phone is in condition only! you want to change mobile battery! put new battery! and charge it 12hours continously! then you use the mobile

hi! its me kibbs! i think your mobile will be fell down! you want to change the mobile screen in mobile service centre! bcoz of that only your mobile gettin slow! And also service your phone in service shop!
Thank you!