Home key and screen lock spontaneously stopped working - Galaxy S II Q&A, Help & Troubleshooting

My home key and screen lock stopped working spontaneously overnight. When I push the power button, my i9100 goes to sleep, but pressing it again results in it waking to the screen I left it on, rather than my lock screen (pattern/PIN etc). My home key no longer does anything either; installing and running https://play.google.com/store/apps/details?id=aws.apps.keyeventdisplay&hl=en shows it not generating any KeyEvents.
Most of the posts here relate to missing /efs/imei/keystr or it not containing ON, but I have keystr and it only contains ON. I've echo'ed to it for good measure, but (unsurprisingly) that had no effect. I've tried clearing my credentials so I could disable the screen lock altogether, and re-enable it, but that doesn't help either.
EDIT: I do have a backup of /efs from about a month ago, just after I upgraded from GB 2.3.5 to ICS 4.0.3. The only differences between it and a backup taken after this point are a) nv_data.bin and nv_data.bin.md5 differ (presumably as a result of disabling/re-enabling the lock protection) and b) there is a 1 byte file named sdkm1 (ess dee kay em one, not sdkml) which simply contains 0x31.
The only thing that might have provoked this is my editing of /system/usr/keylayout/Generic.kl as per http://forum.xda-developers.com/showthread.php?p=28752382 so revert ICS' change to the function of my wired headset skip buttons. I added 'WAKE' to the MEDIA_NEXT, MEDIA_PREVIOUS and MEDIA_PLAY_PAUSE to try to overcome intermittent responses to those buttons. I've since reverted that change and power cycled, but that didn't help either (I didn't really expect it to).
Anyone else experienced this and/or got a fix?

Weird. I just noticed that along with a lot of my other settings (ringtone, default notification, default keyboard, sound effects), my Samsung DIVE stuff was disabled too. I couldn't re-enable 'SIM change alert' and 'remote controls' (they would just automatically untick after a brief delay). Due to a bug in Samsung's ICS, I was able to remove my Samsung account (this was disallowed without a factory reset in previous versions, for obvious security reasons!). Upon recreating it, DIVE started working again, and eventually, I was able to send the 'lock my mobile' command from DIVE's web console. Eventually (a few minutes), my mobile acted upon that, I unlocked it with the PIN I set, and then the lock screen and home key started working again.
/efs/sdkm1 still exists, so I guess that's unrelated.

Related

S3 Lock Screen Issues - Getting Stuck

weird and terribly disappointing. Once in atleast 15 unlocks, when I press the power/wake button, screen just doesnt respond. I try to swipe, but no response. But when I press wake button to turn off screen and press it again, theres no issues. This happens only during unlocking screen. Did anyone face this issue?
rest all is good..no lag..once unlocked phone works perfectly...no lag..no getting stuck..again, let me tell u this issue happens once in 15-20 lock/unlocks.
I think I have the same issue as you, but in case I don't I will post what I am seeing on my device.
In about the same frequency, say once in every 15 unlocks from phone sleeping, the screen will come on but will be completely unresponsive. Doesn't matter if it is swipe unlock or pin code etc, there is no response to touch input on the screen. In fact, I think the screen is just frozen or the operating system is causing the lock screen to hang.
If the lock screen is hanging, pressing power will:
(a) sometimes make the phone sleep again
(b) make the phone screen kind of glitch/blip and then it takes input again
(c) does nothing and the screen remains on and hung/frozen
Occasionally mashing both the volume key and power key will help fix it, but usually if it is completely stuck I have to do a hard reset (holding HOME+VOL UP+POWER and then selecting reboot from the menu).
Now - I think this could be an app, but not sure.
When I first got the phone, set it up with my Google account etc, it went ahead and downloaded ALL the apps I had installed on my previous phone (HTC Sensation running Android ICS). So if it is an app, it is having issues with this phone, not the OS, imo.
I uninstalled all those automatically downloaded apps, and used the phone for a bit without my normal stuff installed. Then started installing apps singularly.
I think it is either Facebook or Alarm Clock Xtreme. The latter makes more sense given it would be polling the system to find out when to go off, so it is doing more in the background I would expect than Facebook or any other non-system app.
Other apps I have installed/running:
Swiftkey X
3G watchdog
Dolphin Browser HD
ES File Explorer
Winamp (locks without this running or running at all in lock screen mode, so that is not the issue)
Real Calc
Google Drive
Facebook
Alarm Clock Xtreme
It is quite frustrating for a brand new phone to have these issues. Not sure if it is hardware related, and if it is, I want to find out soon so I can take it back to carrier within their 28day device swap RMA period.
Thoughts?
So others may try to help or identify the possible cause / fix .......
What is your firmware version?
Are you rooted, custom ROMs or Mods etc?
Stock ROM,Baseband : XXLE8. Build No :XXALE9.
But my screen responds after i press wake button again. You are right seems to be issue with the app. i will just compare your apps and below are the ones which are common between us.
Facebook
3G watchdog
Dolphin Browser HD --i never use
Google Drive
a fix that worked for me
Steps to the solution that worked for me (so far) were to uninstall:
1. Alarm Clock Extreme (no noticeable result but I wasn't needing that application anyway)
2. I had WIFI Fixer installed because of the problems I experienced with the WIFI connectivity on my Galaxy S3.
I disabled that application and problems seemed to go away for a time, but every so in a while they resurfaced. Much less often than before, though.
I was still stuck with my WIFI problem anyway, so I looked into solutions for that problem and since I could not find a workable solution I uninstalled Wifi Fixer and started tweaking my WIFI settings.
While doing that I noticed that disabling "Network Notification" under the Settings -> WIFI -> Advanced tab fixed both my problems.
Now I can't be 100% sure this solution works for all, but I am pretty sure the application that created the problem was "WIFI Fixer".
It's been more than 4 hours now without the "disabled unlock screen from hell", and I’m very happy.
LOOOL
Actually...
My WIFI problem was not solved.... but I found a solution on another forum , which you can read below:
I dialed *#0011# then pressed menu button, then selected WIFI, and pressed the button to turn off the "WIFI power save mode". Hit back until I was back in the homescreen. WIFI has worked to my satisfaction ever since.
This is not a solution, this is a work-around....
It will remove the standby wifi.... My phone was at 0% battery in one night... But actually yes, the phone doesn't hang up when unlocking.
Someone who had replaced the phone could tell me if the problem is solved with a new one ?
calint said:
My WIFI problem was not solved.... but I found a solution on another forum , which you can read below:
I dialed *#0011# then pressed menu button, then selected WIFI, and pressed the button to turn off the "WIFI power save mode". Hit back until I was back in the homescreen. WIFI has worked to my satisfaction ever since.
Click to expand...
Click to collapse
Sadly having the same issue! and only sing LG6 and LG8 of the UK firmware was release.. out the box was LG4 if I am not mistaken... have been putting off custom roms due to the fact stock one is so far good..
This fix seems to be working..Thanks! will live with battery drain as data is expensive in SA!
khan.dharvesh said:
weird and terribly disappointing. Once in atleast 15 unlocks, when I press the power/wake button, screen just doesnt respond. I try to swipe, but no response. But when I press wake button to turn off screen and press it again, theres no issues. This happens only during unlocking screen. Did anyone face this issue?
rest all is good..no lag..once unlocked phone works perfectly...no lag..no getting stuck..again, let me tell u this issue happens once in 15-20 lock/unlocks.
Click to expand...
Click to collapse
This looks like a bug from wifi, i had the same problem and i found a fix:
On the dialer type: *#0011#
Then press menu -> wifi, there is a button ON ( power saving or something ), change it to OFF.
let me know if it solves ur problem
It worked!!
douglasurbano said:
This looks like a bug from wifi, i had the same problem and i found a fix:
On the dialer type: *#0011#
Then press menu -> wifi, there is a button ON ( power saving or something ), change it to OFF.
let me know if it solves ur problem
Click to expand...
Click to collapse
This worked for me!!! Thank you!! I was about to take a hammer to this phone! :good:
I seem to have another problem. When unlocking the phone the screen turns on in a quite ok amount of time, but then when I touch it immediatelly after it turns on it doesn't react to touch. This moment when touch is not working is getting longer and longer depending on how long the system is running, anybody else sees this?
RhavoX said:
I seem to have another problem. When unlocking the phone the screen turns on in a quite ok amount of time, but then when I touch it immediatelly after it turns on it doesn't react to touch. This moment when touch is not working is getting longer and longer depending on how long the system is running, anybody else sees this?
Click to expand...
Click to collapse
Not sure what ROM and kernel you are using, but at a big guess, try reflash another kernel or with less aggressive settings.
Sent from my GT-I9300 using xda premium
hey guys. I have a problem with my s3's lock screen similar to the described. whenever I press the power button to unlock, it takes 2 second for the screen to turn on. Anyone got any ideas on that?

[Q] Phone get stuck with screen locked. Rebooting starts an endless "startloop"

[Q] Phone get stuck with screen locked. Rebooting starts an endless "startloop"
Hi, I have this Galaxy S3 i9300, with Wanam ROM and Boeffla-Kernel 2.12.
Sometimes, when I lock the screen, it just freezes in there. I'm unable to wake it up, and the LED keeps flashing the last notification.
Most of the time, I get notice of it when I receive a notification (it rings) and the phone cannot wake up. Calling and trying to trigger another notification does not wield any results.
The weird part is this: When I restart it, the OS starts as it should, but it "skips" the lockscreen (when I restart my phone, first thing I'm presented is the pattern lockscreen, all Android default), and it goes directly to the home screen. The touch screen is unresponsive (but it does vibrate when I press any of the two bottom buttons), but phone is still alive (few animations plays smoothly).
Then it restarts. The startup LED (fading blue to bright blue) doesn't turn off (normally it would turn off even before the lockscreen is presented).
Disabling the lockscreen wouldn't solve the problem, nor does starting on "safe mode". Same issue.
Booting into CWM and wiping data/cache folders solves it, but resets my phone. Restoring a backup (data folder only) also works.
Funny fact is that even with a fresh backup (which works), it might just hang up like before (although I didn't modify/install anything).
Logging files should give me some info, but I don't know how to retrieve them, let alone on this condition.
The only step I did so far to try to solve it was to disable a notification program (Logical, it seems to hang up when I receive a notification, and as a wipe to the data folder solves it, I presume it's an rogue app. But never, ever I had a problem with this app, but who knows if on an update, it's crashing my phone)
Does anyone have any information regarding to this? I've never seen something like that.
How do I recover my logfiles during an emergency?
-----------
Had another lock-up. No notifications received and the notification app was disabled. How do I get the log file?

[Q] Phone get stuck with screen locked. Rebooting starts an endless "startloop"

[Q] Phone get stuck with screen locked. Rebooting starts an endless "startloop"
(I posted on the wrong location first time, sorry)
Hi, I have this Galaxy S3 i9300, with Wanam ROM and Boeffla-Kernel 2.12.
Sometimes, when I lock the screen, it just freezes in there. I'm unable to wake it up, and the LED keeps flashing the last notification.
Most of the time, I get notice of it when I receive a notification (it rings) and the phone cannot wake up. Calling and trying to trigger another notification does not wield any results.
The weird part is this: When I restart it, the OS starts as it should, but it "skips" the lockscreen (when I restart my phone, first thing I'm presented is the pattern lockscreen, all Android default), and it goes directly to the home screen. The touch screen is unresponsive (but it does vibrate when I press any of the two bottom buttons), but phone is still alive (few animations plays smoothly).
Then it restarts. The startup LED (fading blue to bright blue) doesn't turn off (normally it would turn off even before the lockscreen is presented).
Disabling the lockscreen wouldn't solve the problem, nor does starting on "safe mode". Same issue.
Booting into CWM and wiping data/cache folders solves it, but resets my phone. Restoring a backup (data folder only) also works.
Funny fact is that even with a fresh backup (which works), it might just hang up like before (although I didn't modify/install anything).
Logging files should give me some info, but I don't know how to retrieve them, let alone on this condition.
The only step I did so far to try to solve it was to disable a notification program (Logical, it seems to hang up when I receive a notification, and as a wipe to the data folder solves it, I presume it's an rogue app. But never, ever I had a problem with this app, but who knows if on an update, it's crashing my phone)
Does anyone have any information regarding to this? I've never seen something like that.
How do I recover my logfiles during an emergency?
-----------
Had another lock-up. No notifications received and the notification app was disabled. How do I get the log file?

keyboard delay

Hello people,
I've noticed a weird problem with my Samsung S2 running Gingerbread 2.3.5 (yes, I know, it's old... but the last time I've upgraded to anything more recent, the battery lasted less than one day. I'll happily receive any advices on newer versions tho).
let me tell the story:
the phone is "quiet", with the screen black.
...a message arrives! (doesn't really matter if it's an SMS, Telegram, WhatsApp or anything else. Even notes will be affected, everything needing a keyboard input)
I press the power button, the phone "wakes up" and shows me the lock screen - I've set a static image with the time in the upper area.
so the phone starts running and I go to the desired application (sms/telegram/notes/etc...)
the keyboard (swype keyboard, but is the same also with my other 2 keyboards) shows up.
I try to input letters, words, but nothing gets written. If I press longer to get to the special character selection, I can't select any of them, all I can do is touching the Back button and return to the keyboard.
I usually press a key from time to time to see when the keyboard starts working.
After a delay of ~15 seconds it starts working, but I have to be careful not to let the phone going back to sleep or I will have to endure the delay again (this usually happens during a chat and it's quite annoying).
so, I suspect there is some application that gets stuck after waking up from the lock screen, but does anyone have experienced this? Any ideas on what it could be?
Thanks!
Best Regards
Max

Question Lockscreen is broken on my main profile

I've been documenting my struggles with my lock screen in another thread. But I just had a major breakthrough and didn't want this to get buried.
To recap, my lockscreen has been a buggy mess from day one. The fingerprint sensor barely works, the fingerprint icon randomly disappears, and the gray border that's supposed to appear around the fingerprint icon simply doesn't show up. The lockscreen doesn't light up when I pick up the phone either (it stays dimmed). Also, wallpapers don't show up on the lock screen, and the big ugly clock sometimes disappears or moves itself to the top-left.
I've tried just about everything to fix this. As a last-ditch effort, I added a new user profile only to find that the lockscreen works perfectly well for this new profile (but still not for my main one).
Here's my main profile with the unusable lockscreen:
broken lockscreen of main profile
Watch "broken lockscreen of main profile" on Streamable.
streamable.com
And here's what it looks like when using the other profile:
working lockscreen on new profile
Watch "working lockscreen on new profile" on Streamable.
streamable.com
So there's clearly some obscure bug that most people aren't experiencing here. I'd love to just figure it out so I can move on.
When I didn't have the "always on display" turned on, the phone was very consistant about turning on properly when I picked it up. I ran it this way for 3-4 days without any issues.
After reading some articles on the P6, I realized that it has an AOD and that it was turned off. So I turned the AOD on while leaving all the other settings set the same. At first, the finger print icon wouldn't appear consistantly, but that is because I had adjusted the animation scale settings in the Developer settings. Changing that back to stock fixed the issue with the finger print icon not showing up.
That beings said, I have experienced the same "unresponsive" screen many times over the last couple of days that I have had the AOD turned on. The screen stays dimmed (or even turned off if I pull the phone out of my pocket) and the finger print reader is inactive (even though the icon is displayed). The screen is suppose to turn on when I lift the phone up, but it doesn't always do it. When this happens, I have to either manually turn the screen on using the power button, or double tap the screen to wake it. This is clearly a bug in the system somewhere. I probably need to report it to Google, but hopefully it is fixed soon.
After spending way too long on this, I've determined that the bug occurs consistently with these specific settings (although it may also occur for similar ones):
Lock after screen timeout: 30 minutes (or anything high enough to prevent it from locking between tests)
Power button instantly locks: disabled
Lift to check phone: disabled
Tap to check phone: disabled
Always show time and info: enabled
Replication steps:
1) Enter the above settings
2) Press the Power button to go to the lockscreen
3) Set your phone down for a couple seconds
4) Pick your phone back up and try to use the fingerprint sensor
Result: The fingerprint sensor won't work the first time.
I think all the other issues I had were actually stemming from this one issue.

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