My Sony Ericsson k850i has a problem, whenever I push the 'down' directional key, it also presses the 'back' key straight afterwards, meaning it is difficult to navigate the menu properly.

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.

Hi, Free unlocking is not possible for your phone model. but you can get the accurate unlock code for a Sony Ericsson C903 from www.classicunlocking.com/sony-ericsson-c903/rs16wp9/ at low cost.

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UNLOCKING STEPS FOR SONY ERICSSON C903
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1 - Switch ON your Sony Ericsson C903 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 your Sony Ericsson C903 does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2 & 4. We mean by "Down Arrow" to direct the Jogdial down! In the Sony Ericsson W950i and some other models, the down arrow button/key would be located on the side of the phone.

Hi, You can unlock a Sony Ericsson T700 safer and easier using unlock code. You can get the unlock code for a Sony Ericsson T700 from www.wickedunlock.com/sony-ericsson-t700/rs11wp9/ at affordable cost.
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STEPS FOR UNLOCKING A SONY ERICSSON T700
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1 - Switch ON your Sony Ericsson T700 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 your Sony Ericsson T700 does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2 & 4. We mean by "Down Arrow" to direct the Jogdial down! In the Sony Ericsson W950i and some other models, the down arrow button/key would be located on the side of the phone.

did you try charging the phone? if after trying that you still have the same problem, remove the battery, replace it. then press and hold the power button and release. maybe you're holding it down for too long and it goes back off afterward

Yes You can get the Code to unlock the Mobile Phone,you need Network Unlock code means Get from here Theunlockspot and You need Security or password Unlock code means get from Service provider,Following the Instructions below and Unlock Sony Ericsson C905 from Network Lock.

Sony Ericsson C905 Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Sony Ericsson C905 mobile phones. If you enter over a certain amount of wrong unlock codes on your Sony Ericsson C905 mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch ON your Sony Ericsson C905 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 your Sony Ericsson C905 does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2 & 4. We mean by "Down Arrow" to direct the Jogdial down! In the Sony Ericsson W950i and some other models, the down arrow button/key would be located on the side of the phone.

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

First you have to call you provoder for an unlock code. Then:

1 - Switch ON your Sony Ericsson W880i 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 your Sony Ericsson W880i does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2 & 4. We mean by "Down Arrow" to direct the Jogdial down! In the Sony Ericsson W950i and some other models, the down arrow button/key would be located on the side of the phone.

hi
It sounds as if the keypad is faulty.
just replace the keypad and this should fix the problem.
hope this helps.

solve your problem for FREE OK I HAVE A PROBLEM WITH MY DODGE 2002 3.3 VAN CAN YOU HELP

Sounds like you have damaged the digital touch screen not the LCD screen ...if you want it replaced most places are around 90.00-100.00 dollars...takes about an hour..YOUR CALL ..GOD BLESS