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Display ME temporary error when k850i switched on

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First of all, try cleaning the SIM contacts and using a different SIM - one cause of that message is excessive retries when reading the SIM data.

If it's not that, then try doing a firmware update on the phone - the easiest way of doing this is to use the SE update service - you just need the standard USB cable (DCU-60) that comes with the phone - but note that doing this will erase all the information you have on your phone, so back it up first.

The update service applicaiton can be downloaded here:

http://www.sonyericsson.com/cws/support/softwaredownloads/detailed/updateservice/k850i?lc=en&cc=us

Posted on Jul 02, 2009

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Posted on Jan 02, 2017

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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

My sony ericson k850i has a blank display but i can talk


Hello and Welcome to FixYa!

It looks like that the display (LCD Data) Strip had gone Faulty. Try switching the mobile for several times to ON/OFF after removing the battery. If the problem still persists it either shows bad software or Hardware (Strip Damage) problem. The solution to the scenario you quoted is more biased towards a hardware problem i.e Strip replacement.
Hope you get a Clear Picture of the trouble you are facing,

Concerned.

Jan 28, 2011 | Sony Ericsson K850i Mobile Phone

2 Answers

How do I unlock my sony ericsson K850i? I want to be able to use my cell phone all over the world.


Use this steps to unlock your mobile

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.

If you need unlock code means you can get the unlock code here theunlockarena.com

Aug 10, 2010 | Sony Ericsson K850i Mobile Phone

1 Answer

No screen display after incert my fist password digit


its usually happen at k850i.the problem actually from display light on lcd are not lighting. if you have experience in phone you can make a jumper wire to reconnect light line between lcd and PCB(engine).but usually the fastest way are change the lcd phone.simple but need money.may it help.

May 25, 2010 | Sony Ericsson K850i Mobile Phone

2 Answers

My k850i no display


please check the connectivity strip from motherboard to the display

May 15, 2010 | Sony Ericsson K850i Mobile Phone

1 Answer

On power K850i not light in lcd


So if the K850i LCD won't light either the backlight or the LCD itself has gone bad. It is a fairly easy procedure to replace yourself and you can pick up the LCD from ebay for 15-25 dollars.

Here is a guide for it and it also includes links to buy a replacement display:

Sony K850i LCD Display Screen Replacement

Nov 09, 2009 | Sony Ericsson K850i Mobile Phone

2 Answers

Configeration error


you need to download the custom pack for the k850i to remove the configuration error

Dec 26, 2008 | Sony Ericsson K850i Mobile Phone

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