Question about Samsung SGH-U600 Cellular Phone

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Keypad not working

Samsung U600i mobile phone. Touch sensitive keys work fine but number keypad doesn't work at all. Just wondered if this is a common problem and is it 'fixable' at home?

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Took the phone to bits, cleaned the contacts and made sure the ribbon was plugged in properly (gave it a wiggle and a press). Put it back together and all worked fine.

Posted on Oct 07, 2009

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to unlock, the default code is the last four of your phone number usually.

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if you could get to settings menu and restore factory settings,your problem will be solved

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SOURCE: My samsung mobile GT-B3410 touch

key pad or touch screen ko re sold karo

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SOURCE: my samsung s8300 mobile touch

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Posted on Jun 18, 2011

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1 Answer

Precor gfx 9.33i displays "stuck key"


Precor Error 05, Key Depressed at Power Up
Probable Cause 1. A key is permanently depressed on the display.
2. An interface chip (IC) has failed in the upper PCA's keypad.
3. Liquid (cleaning solution or sweat) may be on the surface of a touch sensitive display.

Corrective Action
  1. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 is eliminated, the keypad is the cause and should be replaced.
  2. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 still appears, the upper PCA* is the cause and should be replaced. *Upper PCA's most commonly do not come with software. Remove the software (chip) from the existing upper PCA prior to replacement and install into the new upper PCA.
  3. Wipe away all liquid from the touch sensitive display. Reset power to the unit. If the Error 05 is eliminated, the liquid was the cause.
This link will take you to the parts available for these models. Because most machines are serial number specific, you will need to narrow your search based on your particular model and serial number.

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My samsung GT B7722 Keys not working. Only ON/OFF switch working. Kindly Clarify plz? - My samsung phone GT B7722 , Touch screen fully working. Hard key not working Except ON/OFF Key.Call Attend,Back, Volume Up/Down, Sim Change,Lock Key Not working. Kindly Clarify me the step to resolve the issue.

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I was wondering if anyone was strongly familiar with the Samsung Vibrant T-959 for T-mobile and could assist me. My touch screen works perfectly but the Home,settings, back and search buttons are not...


Hey John, this sound me keypad problem, if you are able to dissambly the device, please disconnect or unplug keypad from board and reconnect again this will solve your problem. this 4 button has a keypad board inside of device so it need to be disconeect from main board and reconnect again.if my answer was help ful please rate it.

Jul 08, 2012 | Samsung Cell Phones

1 Answer

On switching machine on `STUCK KEY` appears on console and machine will not work


Precor Error 05, Key Depressed at Power Up
Probable Cause 1. A key is permanently depressed on the display.
2. An interface chip (IC) has failed in the upper PCA's keypad.
3. Liquid (cleaning solution or sweat) may be on the surface of a touch sensitive display.

Corrective Action
  1. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 is eliminated, the keypad is the cause and should be replaced.
  2. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 still appears, the upper PCA* is the cause and should be replaced. *Upper PCA's most commonly do not come with software. Remove the software (chip) from the existing upper PCA prior to replacement and install into the new upper PCA.
  3. Wipe away all liquid from the touch sensitive display. Reset power to the unit. If the Error 05 is eliminated, the liquid was the cause.
This link will take you to the parts available for these models. Because most machines are serial number specific, you will need to narrow your search based on your particular model and serial number.


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My Samsung mobile GT-B3410 touch screen is not working. touch screen is not responding. keypad is working


Most common problem of a touch screen phones is the touch screen itself,due to several cases like water damage,dropping to the ground and accidentally press and bump in bags or pocket.

Totally this is not repairable nor needs a replacement.it is available in some mobile service shop near you.

Jun 21, 2011 | Samsung B3410 Cell Phone

1 Answer

546i stuck key elevation does not work


Precor Error 05, Key Depressed at Power Up Probable Cause 1. A key is permanently depressed on the display.
2. An interface chip (IC) has failed in the upper PCA's keypad.
3. Liquid (cleaning solution or sweat) may be on the surface of a touch sensitive display.
Corrective Action
  1. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 is eliminated, the keypad is the cause and should be replaced.
  2. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 still appears, the upper PCA* is the cause and should be replaced. *Upper PCA's most commonly do not come with software. Remove the software (chip) from the existing upper PCA prior to replacement and install into the new upper PCA.
  3. Wipe away all liquid from the touch sensitive display. Reset power to the unit. If the Error 05 is eliminated, the liquid was the cause.

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there must be fault in keypad.contact your device dealer and change the keypad of your problem.this will fix your problem

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My touch screen wont work right on messages and numbers you hit the 1 key it comes up 2, Messages same press A it goes to D

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My blitz doesnt text


Try this. Touch Keypad simulates a wireless phone keypad on the touch screen to allow you to enter text, numbers, and symbols just as if you were using a wireless phone keypad. Touch Keyboard simulates a 20-key QWERTY (typewriter) keyboard on the touch screen to allow you to enter text, numbers, and symbols similar to the way you would using a QWERTY keyboard. To use Touch Keypad or Touch Keyboard:  In a program, tap the Input Selector arrow, and then tap Touch Keypad or Touch Keyboard. To type lowercase letters, tap the keys on the dial pad or keyboard. To type a single uppercase letter, tap the Shift key and then tap the corresponding key. To type all uppercase letters, tap the Shift key twice. To change back to all lowercase letters, tap again. To enter a space after the word, tap the Space key. To start a new line, tap the Enter key. To backspace and delete a single character in any input mode, press the Back key. To open the Symbol pad, tap the Symbol key. To change the input mode:  Tap the Input mode key to switch to a different input mode: XT9 (predictive), Multitap (abc), or Numeric (123).

Hope this helps, let me know if this works or if I can help you with anything else.
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