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-   -   Keyboard is going crazy (https://talk.maemo.org/showthread.php?t=82274)

Dared 2012-02-12 04:45

Keyboard is going crazy
 
Something started happening yesterday on my N9.... when I type messages, the keyboard has a mind of its own and just starts punching a whole heap of random letters by itself. It's like when a phone freezes and it tries to catch up with what you have typed... only the phone hasn't frozen...

Any idea what could be causing this? Was doing the same thing after a reboot

Edit/Update

So now i've figured out that the phone isn't pressing keys by itself, it is actually registering me pressing buttons when my fingers are just above the screen, not actually pressing the screen

So in other words, I can type without touching the screen, all I need to do is hover my finger about half a centimetre above the screen.....

Nokia said to reset my phone but i'm not even going to bother, i'm guessing this is a hardware issue. Very strange if you ask me

Another Update 18/02

Took the phone back to Nokia, they said they replaced the sensor and display... but when I got it back and took it home, I realised it's the same screen as the black spots that appear in the dark are exactly the same, so I don't think they actually replaced the display, AND, the phone is doing the same thing :/

zszabo 2012-02-13 07:36

Re: Keyboard is going crazy
 
Wipe the screen. Make sure there's no oily residue, moisture, or anything else that might impede the functioning of the capacitive screen.

jalyst 2012-02-13 10:58

Re: Keyboard is going crazy
 
LOL actually sounds pretty cool :)

afaq 2012-02-13 11:02

Re: Keyboard is going crazy
 
I have issues where the VKB disappears and leaves behind a white space. I can still type but have no clue what keys im hitting.

Add it to the long list of issues.

GrimyHR 2012-02-13 11:03

Re: Keyboard is going crazy
 
Quote:

Originally Posted by Dared (Post 1163773)
Something started happening yesterday on my N9.... when I type messages, the keyboard has a mind of its own and just starts punching a whole heap of random letters by itself. It's like when a phone freezes and it tries to catch up with what you have typed... only the phone hasn't frozen...

Any idea what could be causing this? Was doing the same thing after a reboot

Edit/Update

So now i've figured out that the phone isn't pressing keys by itself, it is actually registering me pressing buttons when my fingers are just above the screen, not actually pressing the screen

So in other words, I can type without touching the screen, all I need to do is hover my finger about half a centimetre above the screen.....

Nokia said to reset my phone but i'm not even going to bother, i'm guessing this is a hardware issue. Very strange if you ask me

why are you even complaining, your n9 obviously has got some technology from the future where you can type in the air :p

screw iphone, this takes touch sensitivity to a whole new level :p

requiem_76 2012-05-06 10:17

Re: Keyboard is going crazy
 
Hi!
I'm having the same problems....
How do You managed to solve it?
Do you?

Dared 2012-05-07 00:09

Re: Keyboard is going crazy
 
[QUOTE=requiem_76;1202480]Hi!
I'm having the same problems....
How do You managed to solve it?
Do you?[/QUOTE

it turned out to be caused by a 3rd party app.. Flash your phone

requiem_76 2012-05-07 05:24

Re: Keyboard is going crazy
 
Already done.....
I've done it yesterday afternoon ( I zeroized it).The phone was empty....
After a reboot, while I was choosing the timezone, the device went crazy.....so, I suppose that is not a software problem....

Dared 2012-05-07 07:59

Re: Keyboard is going crazy
 
Quote:

Originally Posted by requiem_76 (Post 1202829)
Already done.....
I've done it yesterday afternoon ( I zeroized it).The phone was empty....
After a reboot, while I was choosing the timezone, the device went crazy.....so, I suppose that is not a software problem....

Hmmm that's very strange. I was convinced it was a hardware problem, but it turned out to be the QuickTweak app.

Did you backup your phone and then reinstall everything from the backup?

requiem_76 2012-05-07 09:48

Re: Keyboard is going crazy
 
Hi, and thank You for the reply.....
The only apps by third party that I had were file manager and a radio fm app.....I never used QuickTweak.
What I've done ,in sequence,is:
1)I reset the phone.....and it works fine....then ,with my BackUp, I reinstalled everything....
Than the problems started again ( impossible to write sms, because the phone digit itself; or,the phone always opens the apps that are at the bottom of the screen; or it swipe the screen left to the right and right to the left...).
2)I tried to take off all the apps,one by one....but with no good results...
3)i flashed the phone with zeroize ( "flasher -f -F main.bin --erase-user-data=secure"),it reinstall the roots.....than I reboot the phone....and I still have the problem.
Maybe the bottom part of the touch screen sensor is broken? I really don't know....
Maybe I've done a wrong command for the zeroize?

rainisto 2012-05-07 10:12

Re: Keyboard is going crazy
 
I've only seen touch events gone haywired when restored a broken backup or using a broken charger which messed up all the events with interference. (but you can rule that one out if your not charging while you use your device?)

If you really want to test if screen touch sensor is broken, you can just googlesearch evtest.c and compile that to your device. And then run "aegis-exec ./evtest /dev/input/event3" in there you can see raw touch events and can see if you get ghost events when your not touching the device. (I've installed gcc on my N9, but normal users need to use scratchbox to compile).

Code:

RM696-07-1_PR_001:~# gcc -o evtest evtest.c
RM696-07-1_PR_001:~# aegis-exec ./evtest /dev/input/event3
Input driver version is 1.0.0
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0
Input device name: "Atmel mXT Touchscreen"
Supported events:
  Event type 0 (Sync)
  Event type 1 (Key)
    Event code 330 (Touch)
  Event type 3 (Absolute)
    Event code 0 (X)
      Value    541
      Min        0
      Max      853
    Event code 1 (Y)
      Value    255
      Min        0
      Max      479
    Event code 48 (?)
      Value      0
      Min        0
      Max      853
    Event code 53 (?)
      Value      0
      Min        0
      Max      853
    Event code 54 (?)
      Value      0
      Min        0
      Max      479
    Event code 57 (?)
      Value      0
      Min        0
      Max        9
  Event type 4 (Misc)
    Event code 2 (Gesture)
Testing ... (interrupt to exit)

When you touch the screen you should be getting event like this:
Code:

Event: time 1336385284.627016, type 1 (Key), code 330 (Touch), value 1
Event: time 1336385284.627107, type 3 (Absolute), code 0 (X), value 565
Event: time 1336385284.627107, type 3 (Absolute), code 1 (Y), value 120
Event: time 1336385284.627138, type 3 (Absolute), code 53 (?), value 565
Event: time 1336385284.627138, type 3 (Absolute), code 54 (?), value 120
Event: time 1336385284.627138, type 3 (Absolute), code 48 (?), value 54
Event: time 1336385284.627168, type 3 (Absolute), code 57 (?), value 0
Event: time 1336385284.627168, -------------- Config Sync ------------

if you get those events without touching the screen, then its time for nokia care.

requiem_76 2012-05-07 10:37

Re: Keyboard is going crazy
 
Uhao....that's sound hard for me......
If I understood well, I have to search and download "evest.c", than to put in my N9, and, via the "terminal" to run it....
I'll try whitin 2hours......thanks for the moment!!!
I'd like to avoid nokia care, specially 'coz I'm in Italy, where the N9 is not supported by Nokia....

rainisto 2012-05-07 11:14

Re: Keyboard is going crazy
 
# devel-su
# apt-get install wget
# wget http://linuxi.org/evtest
# chmod a+x evtest
# aegis-exec ./evtest /dev/input/event3

For people who are not able to compile their own stuff. (normally you of course compile the file yourself, and not execute random binaries from untrusted sources....)

requiem_76 2012-05-07 13:27

Re: Keyboard is going crazy
 
Thank You, Rainsto!

What I'm doing right now is to reflash with this line (flasher -f -F main.bin -F emmc.bin --erase-user-data), than I'll try to use Your stuff......but if the problem persist,it will be nearly impossible to use the device,and,of course,go and using the "terminal"....because the "ghosts events" are all the time,not random...



UPDATE:

after switch on the phone, ghost event stop me to do anything: I even cannot insert my PIN code. It seems to get worst....so I can't test the touch screen....

Dared 2012-05-07 14:02

Re: Keyboard is going crazy
 
If you backed it up and did a restore, then that would make the issue reappear. But if you did a full flash, and reinstalled everything from scratch, then that shouldn't be an issue. Try flashing it and NOT installing any 3rd party apps... If the problem continues, then it may be a hardware problem :(

requiem_76 2012-05-07 18:04

Re: Keyboard is going crazy
 
Yes , Dared, that's the clue....
I've done a FULL FLASH ( zeroize), without putting any back up....and the problem reappear during basic set up!!!!!
So.i decided to give my phone to a Nokia care, just to tell me if I'm right about the touch screen hardware problem....
I'll let You know....
Does anybody know the price for a replacement screen? I mean the original one.....
I really don't wanna give up.... I'm mad about my N9.after trying the swipe ,I cannot going back with an android or other stuff.....
Thanks for YOUR support.......

rainisto 2012-05-07 19:12

Re: Keyboard is going crazy
 
you can always look the dismantling guide on the youtube, you could remove your display and reconnect it back, if it was just contact problem which would be fixed by shaking the cables.

rainisto 2012-05-07 19:15

Re: Keyboard is going crazy
 
and if display is really broken then replacement costs you around 115e, like http://www.ebay.ie/itm/New-Original-...-/280836435486

requiem_76 2012-05-08 07:19

Re: Keyboard is going crazy
 
Thank You,Rainisto!!!d almost the same price,that deliver it to Italy too.
So, now I've to wait the check at the nokia care,than I will decide...of course,they told me that woldn't be possible to change my screen with not original spare parts from nokia.
I'll let You know!!!!


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