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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   [Solved][Hardware Help Needed] N900 Hardware Slide to Unlock key not working (https://talk.maemo.org/showthread.php?t=90839)

panjgoori 2013-07-25 10:41
[Solved][Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
today when i woke up my N900's hardware slide to unlock key was not working. It was working yesterday without any problem. I thought may be its a software issue so i reflashed it but its still not working.

after trying/sliding button more than 15 times its behaving totally weird now. it keeps locking and unlocking phone. seems like its stuck inside. lshal -m log attached. see how its behaving.

Code:
BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ lshal -m

Start monitoring devicelist:
-------------------------------------------------
06:06:02.392: platform_kb_lock property button.state.value = false
06:06:02.408: platform_kb_lock condition ButtonPressed = cover
06:06:02.485: platform_kb_lock property button.state.value = true
06:06:02.515: platform_kb_lock condition ButtonPressed = cover
06:06:03.456: platform_kb_lock property button.state.value = false
06:06:03.464: platform_kb_lock condition ButtonPressed = cover
06:06:03.555: platform_kb_lock property button.state.value = true
06:06:03.564: platform_kb_lock condition ButtonPressed = cover
06:06:11.977: platform_kb_lock property button.state.value = true
06:06:12.074: platform_kb_lock condition ButtonPressed = cover
06:06:12.075: platform_kb_lock property button.state.value = true
06:06:12.116: platform_kb_lock condition ButtonPressed = cover
06:06:23.365: bme property battery.voltage.current = 3775 (0xebf)
06:06:23.400: bme property battery.reporting.current = 428 (0x1ac)
06:06:23.501: bme property battery.remaining_time = 7200 (0x1c20)
06:06:33.205: platform_kb_lock property button.state.value = false
06:06:33.223: platform_kb_lock condition ButtonPressed = cover
06:06:33.341: platform_kb_lock property button.state.value = true
06:06:33.361: platform_kb_lock condition ButtonPressed = cover
06:06:33.573: bme property battery.voltage.current = 3781 (0xec5)
06:06:33.589: bme property battery.reporting.current = 427 (0x1ab)
06:06:36.701: platform_kb_lock property button.state.value = false
06:06:36.716: platform_kb_lock condition ButtonPressed = cover
06:06:36.780: platform_kb_lock property button.state.value = true
06:06:36.822: platform_kb_lock condition ButtonPressed = cover
06:06:38.084: platform_kb_lock property button.state.value = false
06:06:38.100: platform_kb_lock condition ButtonPressed = cover
06:06:38.146: platform_kb_lock property button.state.value = true
06:06:38.161: platform_kb_lock condition ButtonPressed = cover
any solution or i have to take it to a repairing shop ?

pichlo 2013-07-25 10:49
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
Did you have a storm at night by any chance? There have been a few reports (including by yours truly) that the slider is sensitive to moisture but will start working properly again once completely dried. Which may take hours or days.

nokiabot 2013-07-25 11:04
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
take it to repairing shop if moisture then they will dry it up or act accordingly :) and stop sliding it over and over again

panjgoori 2013-07-25 11:06
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
Quote:
Originally Posted by pichlo (Post 1361985)
Did you have a storm at night by any chance? There have been a few reports (including by yours truly) that the slider is sensitive to moisture but will start working properly again once completely dried. Which may take hours or days.
no. can it be caused by sweating ? as weather is pretty hot here and when i leave to take my classes i sweat much and also my phone is in my front pocket of my shirt. and it morning it was not working at all.

nokiabot 2013-07-25 11:12
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
sweat damages phones intensively specialy displays and hardware switches and shorting the board:) its too conductive.

pichlo 2013-07-25 11:42
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
I believe it can be caused by sweating. I found a steamy bathroom was the cause in my case.

Of course that is just one possible cause. It may turn out to be another problem altogether.

panjgoori 2013-07-25 13:53
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
Quote:
Originally Posted by pichlo (Post 1361997)
I believe it can be caused by sweating. I found a steamy bathroom was the cause in my case.

Of course that is just one possible cause. It may turn out to be another problem altogether.
yeah that may be the cause. as first it was totaly un responsive and now it is too sensitive. is there any way to turn this off ? i mean make N900 not to respond to hardware slider lock and unlock commands ? its really annoying.

Estel 2013-07-25 14:21
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
I would suspect a little dirt, that is making it stuck (for a while) in one position... Before taking it to repair shop, I would disassemble device and check it myself - it's as easy as unscrewing 6 screws, really.

Either "faerie" is visible, or (if you check pressing that button on MB yourself, and it seems to work OK), it's really damaged switch. In the latter case, repair center sounds sane - one could attempt to replace that switch her/himself, but it's not trivial for beginners (small parts, SMD).

/Estel

panjgoori 2013-07-25 15:19
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
Quote:
Originally Posted by Estel (Post 1362031)
I would suspect a little dirt, that is making it stuck (for a while) in one position... Before taking it to repair shop, I would disassemble device and check it myself - it's as easy as unscrewing 6 screws, really.

Either "faerie" is visible, or (if you check pressing that button on MB yourself, and it seems to work OK), it's really damaged switch. In the latter case, repair center sounds sane - one could attempt to replace that switch her/himself, but it's not trivial for beginners (small parts, SMD).

/Estel
is there any guide for disassembling ? i would do it myself if its easy. and is there anyway to disable it until its fixed ? it keeps locking and unlocking device. slide itslef is smooth as it was.

panjgoori 2013-07-25 19:07
Re: [Hardware Help Needed] N900 Hardware Slide to Unlock key not working
 
one more question. now whenever i try to start backupmenu it just restarts itself when it shows menu for about 1 second. it reboots because of this problem ?


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