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How to use my keys and how to work the phone?

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  • A Miller May 11, 2010

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Can i fix my toch screen on my zte warp it wont work


Hey james perform a reset on the phone or contact zte to find some help. Ill help u with the reset,
Power off the phone--Press and hold Vol+ key and Power key simultaneously until several blue sentences appear on the screen which are reboot system now; apply update from sdcard; wipe data/factory reset; wipe cache partition.---Use Vol+ key and Vol- key to move the cursor to "wipe data/factory reset" and press camera key to confirm it.-----There are many words "No" and one sentence "Yes -- delete all user data". Use Vol+ key and Vol- key to move the cursor to "Yes -- delete all user data". Press camera key to confim it.---The phone will finish the reseting by itselft after about 10 seconds later and then the cursor will be on "reboot system now" and press camera key to confirm it. The phone will reboot automatically. and it should fix the problem. N hey the only problem is u will lose all the data on ur phone. So take off ur SD card before u reset the phone.

Apr 10, 2013 | ZTE Cell Phones

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How to repair keypad problem in China Mobile


First we need to know china phone keypad connected with PCB how way
(A) Direct on PCB
(B) Flex System (flex cable direct soldering pcb to keypad panel)
© Flex and socket system include (flex one side soldering with key panel other side connect to pcb with socket)
(D) only Socket System (here have 2 socket, 1 with key panel others with pcb)
Keypad problem have various type
1. All key not work.
2. some key work and some other not work.
3. sometimes work and sometimes not work.
1. All key not work
china phone all key not work for this type of problem
(A) though its touch screen phone, first try to disconnect touch panel line from phone pcb or display flex (4 line)
(B) though not solve and keypad direct on pcb first you try to good clean full pcb with cleaner.
© though not solve now you try to format/flash your phone because some time key problem come from software problem.
(D) though still not solve now you check must be CPU. 95% china phone keypad directly going in cpu. and other 5% first going to resistor or capacitor near the cpu or keypad than going to cpu. so now first check them than you can try to re-hot, re-soldering or changing cpu.
(E) though its flex or socket system, first check GND connection continuslay pcb to key panel. next check full flex or socket all line going continuously pcb to key panel or not. also sometimes flex or socket shorted with other line or gnd so check also them.
(F) Also you can check all key anyone is short 2 line.
(G) sometimes keypad line broken from cpu pin on pcb to key panel, so check them.
2. Some key work and some other not work
Some key work and some other is not work for this type of problem
(A) maximum time this problem we face for flex or socket system keypad. so check flex cable and socket all line any line is broken or not and though need change them. and check all key connection on key panel.
(B) though its direact on pcb, some of key line broken internaly. and maximum china phone have alternative test point near every key or with other key on keypad. so check them with multimeter and though need connect to not work key with near testpoint or other working key.
© common problem is keypad metal ball (which is short 2 line on key when we press) sometimes its damage for phone water damage or over key voltage, so clean them or change.
(D) also try to check line continuously from cpu to not working key.

3. sometimes work and sometimes not work
this problem come from this defect
(A) flex or socket system keypad any line is bad soldering or do lose contact. check them and
re-soldering or keep there line join with extra ware.
(B) for cpu bad soldering or cpu pin is broken. so re-hot or re-ball cpu.

on Jan 06, 2010 | Cell Phones

2 Answers

Hi, Key 7 is not working on my phone (1100).


Try to replace the entire keypad .

Mar 15, 2011 | Nokia Cell Phones

2 Answers

My sony ericsson w705 button does not working....jz number key and call key work only..please help.


Same problem was with mine phone.
The problem is that your flex cable (aka "patti") is damaged due to its to and fro motion while sliding the phone.
flex cable is a flexible cable that connects everything in the front part of the phone (3g camera, control keys and screen) to the motherboard in back part of the phone. Your number keys are working because they are present in the back part of the phone and are not connected through flex cable

Feb 15, 2011 | Sony Ericsson Walkman W705 Cell Phone

1 Answer

Is is fixable problem 789 keys not working?


Hi,what makes number 789 keys not working is because there is an IC on the phone board that controls those keys. The IC is bad and will need replacement for those keys to work.

When you replace the IC those keys will function again.

Have a nice day.

Sep 23, 2010 | Nokia 7310 Cellular Phone

1 Answer

Keys not functional though you can only switch the phone on


May be the phone is 'locked'. Check for a locked sign (probably a padlock sign) in the top edge of the screen.

Jul 13, 2009 | Nokia 6500 Slide Cellular Phone

1 Answer

The keypad 3, 6 and 9 of my sonyericcson k750i are not functioning....


If you feel confident and competent enough, try taking your phone apart and giving the internals a good clean, take the white keypad PCB out and clean both it's contacts and the contacts on the phone's mainboard, and clear out any dust. Put the phone back together and see if that's solved the problem. It could also simply be that the keypad connector has worked loose




Key Pressed : Key presses phone appears to see
:
3 : 3 then left soft key
6 : 6 then right soft key
9 : 9 then back
c : c then #
left soft key : 3 then left soft key
right soft key : 6 then right soft key

(All the other keys worked correctly)

As I didn’t know what was causing this I attempted to move all data stored on the phone to the memorystick so I could master reset and possibly reflash, although after this I returned to the homescreen to find all keys had started functioning correctly again,





Key Pressed : Key presses phone appears to see
:
3 : 3 then left soft key
6 : 6 then right soft key
9 : 9 then back
c : c then #
left soft key : 3 then left soft key
right soft key : 6 then right soft key

(All the other keys worked correctly)

As I didn’t know what was causing this I attempted to move all data stored on the phone to the memorystick so I could master reset and possibly reflash, although after this I returned to the homescreen to find all keys had started functioning correctly again,

Jun 25, 2009 | Sony Ericsson K750i Cellular Phone

1 Answer

Krz K1


check well all the keys. it might one or more key/s that clug. thanks

Feb 05, 2009 | Motorola Mobility MOTOKRZR K1 Cellular...

1 Answer

Keys wont work


send it back under warrantee. I had the same problem and let them fix it. They'll have a new phone to you in 2 days and they'll save your contacts and put them on your new phone. Let me know how it works out.

Cindy

Jan 30, 2008 | Motorola Mobility RAZR V3

1 Answer

2 5 8 keys do not work


Hi,
Try doing a master reset on the phone and if that doesn't help then there is a malfunction with the board under the keys or dust under the keys interfering with usage which means the phone needs ot be opened or sent off to service. Good luck!

Dec 10, 2007 | LG VX4400

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