Question about Sony Ericsson W850i Cellular Phone

6 Answers

SE K850i menu touch screen button not working properly

My K850i is crazy now, the menu button (touchscreen) is not working, if you press 8 or 5 buttons they activate the menu button and at times you can't unlock the phone because the menu button presses itself, Can you help?

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  • kravichec Jun 19, 2008

    its the same thing to me

  • kravichec Jun 19, 2008

    SE K850i menu touch screen button not working properly problem

  • Manix1 Jun 25, 2008

    Taking the phone in seems to be righ step, a good help would be to know why this happens, I mean, is it a software problem? Hardware? why this happens to many SE K850i? is it a design issue? if so, the advice would be to throw it away. The SE people has it now, I'll let you know what they find out, if they are able to find something... Thx anyway!

  • Anonymous Jul 11, 2008

    My W850i has the same problem. I cann't use the phone anymore, so I will bring it to the reseller.

  • tomekIFE Jul 16, 2008

    I have the same problem

  • Anonymous Aug 21, 2008

    the left and middle touch screen button dun work but sumtimes the middle starts working without me touching it



6 Answers

I just got the same problem ..i live in egypt..does anyone live here too..and pls recommend me where i should go

Posted on Oct 20, 2008


This phone is ****, mine has done the same

Posted on Sep 17, 2008


Do you all have auto keylock on?

I had this problem it drove me nearly insane for 3 weeks, I took it back to the shop I brought the phone from to have it sent off for repair BUT they had no loan phone.

As a tempory soloution so I could still use the phone to make outgoing calls I turned off autokeylock. and have so far i've had 1 week trouble free it hasn't locked up once! I can still lock the keypad it appears in my phones case to be a software glitch keeping the keypad autolocked.

Posted on Sep 04, 2008

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Well, You may need to change inner keypad PCB of the phone, in most cases problem solved after changing PCB Keypad.

take to nearest shop and they will do the job for you.

good luck

Posted on Sep 02, 2008

None of my touch screen buttons work..but they do sometimes so I'm guessing its a software issue. It's incredibly annoying.

Posted on Aug 27, 2008

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You need to have the phone service you need to take the phones in and have them check.

Posted on Jun 20, 2008

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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
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.

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1 Answer

The touch screen wont function with touch of the fingers.

Touchscreen not working
Clean the screen with a microfiber polishing cloth.
Do not wear gloves while using the touchscreen.
Do not use the touchscreen with wet hands or immediately after applying hand
Moisture affects touchscreen behavior in the same manner as it affects a
If you have a protective plastic sheet or film on the touchscreen, try
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The current application may be unresponsive; press and hold the Sleep/Wake button
on top of iPod touch for a few seconds until a red slider appears.
Then press and hold the Home button until the application quits.
If that doesn't work, turn the device off and turn it on again. Press and
hold the Sleep/Wake button on the top of the device for few seconds until a
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Please rate me

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Sonyericsson k850i touch pad

touchscreen sye kdg2 xleh gne lorh,,,time nk rply msj kdg2 nk sent xdpt sbb touchscreen xleh gne,,,hang...kdg2 ok,,,keypad lain ok jer,,,knp yer,,,???

Mar 10, 2010 | Sony Ericsson K850i Mobile Phone

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When ever I touch the screen of my Coby MP822 it says Keypad locked. How do I unlock it?

The menu / hold button could be engaged, see button 14:

Controls at a Glance
Top View
1. Neckstrap Insert
2. USB Port
—. Connect to a computer to transfer media files to
the player.
3. 3.5mm Headphone Jack
Left View
4. Menu Navigation: Up
5. Menu Navigation: Down
6. Stylus
Front View
7. Speaker
8. LCD Touchscreen
—. Tap the display with your finger to activate the
on-screen control.
9. OK Button
Bottom View
10. Reset Button
11. miniSD Card Slot
—. Load a miniSD memory card here to upgrade
the memory capacity of the player.
Page 6 Coby Electronics Corporation English Right View
12. Power Button
—. Press and hold to power the player on/off.
13. Volume Button
14. Menu/Hold Button
—. Press and hold to disable the player controls.
Press again to re-enable.

See also page 8 and 9 of the Quick Setup guide for the MP822:

Dec 05, 2009 | Coby Audio Players & Recorders

2 Answers

My sonyericsson k850i touch screen is not working

Sir, try reinstalling your phone. This will make the phone to be back to its original settings and maybe can bring the phone's touch screen capability back.

Jul 19, 2009 | Sony Ericsson W850i Cellular Phone

29 Answers

Touch Screen 'Back' button on my K850i affected by every other button.

problem solved. i had the same problem but i fixed it somehow. one day i just took a iron thick pin and pressed the space between number 5 and left-down button(not in the gap). and then i pressed between left-down key. Instantly it started working fine. i dont know whether it was my luck or i just accidently found a solution.756425f.jpg

Jan 23, 2008 | Sony Ericsson W850i Cellular Phone

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The easiest way to take pics with the SE K810i, I just slide the lens cover and it auotmatically goes to camera mode

Jan 06, 2008 | Sony Ericsson W850i Cellular Phone

3 Answers

Garmin touchscreen

This was just suggested for the exact same problem with my StreetPilot 2620 and worked like a charm: (1) Disconnect any external GPS antenna. (2) Do not turn on auto engine. (3) Turn off any other peripheral devices. (4) Simultaneusly hold down the PAGE and MENU buttons while turning on the 2620. A prompt box will appear asking if you really want to delete all user data. Touch the NO selection. Then turn off the 2620. (5) Simultaneously hold down MENU & ROUTE buttons while turning on the 2620. (6) A self-running diagnostic program will appear. Allow it to run for a couple of minutes; check to see that all parameters indicate "PASS" or other indication of being OK. If any parameter is not OK, make a note of it for potential communication to Garmin, then proceed with the following steps (7) Turn off the 2620. (8) Simultaneously hold down the PAGE, MENU & ROUTE buttons while turning on the 2620. A SCREEN CALIBRATION adjustment screen will apear. Quickly touch the points indicated as the calibration program runs. At the end of this procedure, the screen will display a window indicating that the calibration either "PASSED" or "FAILED." If it "PASSED," continue to steps (8)-(9). If it "FAILED," turn off the 2620 and repeat this step. If, after three calibrations attempts, each one is "FAILED," then also turn off the 2620 and proceed to steps (8)-(9). (8) Turn on the 2620. Press the "OK" button each time prompted to do so. Wait for maps to load and for the 2620 to initialize, acquire satellites, and display your position. (9) Press FIND button, then touch the right-hand vertical screen position adjustment to scroll screen display down to reveal WAYPOINT selection box. If unable to select WAYPOINT, or if attempting to do so only selects an adjacent box, then repeat step (7), and return to this step. (10) When various waypoint selections appear, attempt to scroll down to a selection not visible when the list of waypoints first appears, and select one of them. If still unable to select WAYPOINT box, unable to scroll screen down (or if trying to do so selects a stored waypoint instead), once again repeat step (7). If successful,then proceed to step (11). Also proceed to step (11) if you have repeat step (7) but then still can't select WAYPOINT, can't scroll down after selecting WAYPOINT, or can't select a particular stored WAYPOINT. (11) Press the upper-right hand "X" to close out the FIND screen or sub-screen within that function. If unable to close the screen, press the PAGE button. (12) Press FIND button, and when selection screen appears, touch ADDRESS. On next screen, touch the STATE line and touch the ENTER A CITY in (name of state). When keyboard appears on screen, use it to enter your city, then touch OK. Continue this procedure to enter your house number and street name, then press "OK." If all screen keyboard keys not responding, repeat step (7), turn the 2620 off and on again, wait for it to initialize, and then attempt this step again. (13) Repeat this procedure several times if not initially successful. By the second or third run-through, the touch screen should respond fully and accurately. If, after many runs through this procedure, the touch screen still will not respond, the screen sensor probably will need to be replaced ($255). The foregoing procedure brought my touch screen back to life last evening, much to my delight. Do not be too concerned if the SCREEN CALIBRATION step does nto produce a "PASS;" on my third calibration attempt it produced a PASS but all of the touch screen points still had not returned to functionality. I was unable to get a PASS during the screen calibration step after that, but the many repetitions apparently nonetheless made the difference, as by patiently following the above prcoess for five cycles, full screen functionality was restored. Thank you for rating this solution. Good luck and save you $250 for something else!

Jun 06, 2007 | Garmin StreetPilot 2620 GPS Receiver

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