Question about Sony Ericsson K800i Cellular Phone

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Sony ericsson k850

I got sony ericsson k850 phone around 6months before, today after i charged i saw my phone cannot switch on, screen appears black, light is on at key button and blue light is on at camera area,
can somebody tell me what is the problem & how to solve

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Hi... ur mobile phone has lost its display.. due to display problem the screen appears black for u... thats the problem.. u are in warranty period right now.. so u can contact sony service centre and they will replace u with new display for ur mobile...

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Posted on Jan 24, 2009

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1 Answer

How to unlock se k850i


To Unlock Sony Ericsson K850 use unlock code.Visit the site
Superunlockcodes.com
get Unlock code and Follow the unlocking instructions below and unlock it easily.

Sony Ericsson K850i Unlocking InstructionsWarning : Do not enter any wrong unlock codes on your Sony Ericsson K850i mobile phones. If you enter over a certain amount of wrong unlock codes on your Sony Ericsson K850i mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch ON your Sony Ericsson K850i without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.

Nov 24, 2012 | Cell Phones

1 Answer

When i open my k850 it would start normally then after sometimes the display would go black and it wont light up again, i still can call and accept calls but i cant see anything on the display.


that is a hardware problem.you should have it opened up and the screen interface inspected, cleaned and reattached if problem persists, then the light Ic responsible for the LCd is gone faulty.they should replace it.

Apr 15, 2011 | Sony Ericsson K850i Mobile Phone

1 Answer

When i switch my k850 on,it has a blank screen but the keypad is on and also at the back their is a blue light on.how can i solve this problem


My sony erricson k850i started giving problems a while back. during use the screen would go black but it didnt stop the general use of the phone, I could still sms or phone a number even though I couldnt see anything on the screen. Then my phone went of and never came back on again. I tried software upgrade, I did the whole remove battery and mem card thing I charged it over night etc, there is no responce from the phone at all exept for a red light that comes on deep inside the phone when charger is connected, only visible in the dark pls help

Jan 28, 2011 | Sony Ericsson K850i Mobile Phone

1 Answer

Screen lights thats all


you will have to get your lcd replaced. Its a common issue with the k850. I have replaced alot of these screens for the k850i.

Oct 28, 2010 | Sony Ericsson K850i Mobile Phone

1 Answer

After a few seconds the screen goes black


You need to restore the phone to the factory defaults. If this doesn't work, you'd have to bring your phone to someone that can update the phone's firmware.

Jul 14, 2010 | Sony Ericsson K850i Mobile Phone

1 Answer

Problem on startup


if cal incoming or outgoing ok > displey light problim is not then reflash mobile will bi ok

May 07, 2010 | Sony Ericsson K850i Mobile Phone

1 Answer

Sony k850


U must change touch pad. It was damaged by liquid.

Aug 20, 2008 | Sony Ericsson W850i Cellular Phone

3 Answers

The phone will not turn on the infared light flshes when I try o turn it on


if the battery is already charged., remove it from your k800i for couple of hours about 3 hrs. then put it bak in the phone., press on button., if this doesn't work flash your phone with the latest software(go to the SE site., the update service is under the supprt tab) if the fone's battery is already drain then fully charge it., then remove the battery and wait for 3hrs

Aug 18, 2007 | Sony Ericsson K800i Cellular Phone

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