Lock screen disappeared - Galaxy Tab 10.1 Q&A, Help & Troubleshooting

My lock screen disappeared on most ROMs including stock. I can't explain when or why exactly; A few weeks after root, but no other halfway relevant events. When I hit power it turns off directly without locking--no power menu either. I unrooted and reinstalled stock and it solved nothing so I'm back to AOKP. Two greedy thieves live with me, three feet tall and prone to sabotage (edit: hmm, wait a minute...) so I need a lockable screen always. Ideas? Thanks.
Edit: This, along with all the the issues in my other posts, turned out to be related to a corrupt efs folder, fixed by repartitioning with a pit file and reflashing stock.

kailehu said:
My lock screen disappeared on most ROMs including stock. I can't explain when or why exactly; A few weeks after root, but nothing else had changed. When I hit power it turns off directly without locking--no power menu either. I unrooted and reinstalled stock and it solved nothing so I'm back to AOKP. Two greedy thieves live with me, three feet tall and prone to sabotage so I need a lockable screen always. Ideas? Thanks.
Click to expand...
Click to collapse
Try this:
Settings menu>security.
At the top of the right side panel is screen lock. See if it'set to none.

Related

[Q] Notification bar wont pull down & buttons go weird

I have searched the forums and not found an answer so I am posting a question.
I flashed Aura ROM and been very happy for a very long time then suddenly the notification bar wont pull down.
The only thing I can think of is that I tried to use the Entertainment Dock and, although the phone went into entertainment mode, the TV remained blank, I unplugged and got on with my life.
I have since tried wipe (data/cache/dalvik), reflash Aura, wipe reflash Aura w/Bl, wipe reflash Home, flash update, flash theme, wipe...
After the above I went to restore a previous backup and got an MD5 Sums Mismatch. I repaired the backup and restored...still the problem persists.
Any ideas would be welcome. I am getting concerned that I have managed to ruin a fantastic phone.
I can confirm that there is no problem with the screen, that portion of the screen responds to swipes across and moves the desktop, just not the notification bar.
The really weird bit is that the buttons stop working, if I run my finger across from one side to the other then the screen responds (my home screen moves around).
If I go into landscape then the pull down works but the buttons are still shot and back to portrait doesn't help.
Standby and back seems to fix it (I do not have to power off).
Any help is greatly appreciated.
Thanks
Jez
Quick update (problem persists)
I used multitouch tester to see what was happening when I dragged down the notification bar. When functioning correctly it see's one finger as one. When going wrong it sees the finger at the top of the screen as two / three / four separate presses. When I drag the one finger down the extra points stay at the top. I guess this is why the notification bar doesn't go down.
Jez
Hardware Fault
I have decided that this is a hardware fault and so I am desperately trying to hide the "unlocked" text and return the device
...or brick it in the process
wish me luck...
jezarius said:
I have decided that this is a hardware fault and so I am desperately trying to hide the "unlocked" text and return the device
...or brick it in the process
wish me luck...
Click to expand...
Click to collapse
Just flash a GB SBF to remove the unlocked and you don't have to worry about bricks as long as you don't attempt to flash a froyo SBF. Don't worry if it doesn't boot after flashing the SBF. Just ssend it in. That's what I did.
Sent from my MB860 using xda premium
d3athsd00r said:
Just flash a GB SBF to remove the unlocked and you don't have to worry about bricks as long as you don't attempt to flash a froyo SBF. Don't worry if it doesn't boot after flashing the SBF. Just ssend it in. That's what I did.
Click to expand...
Click to collapse
I actually did the motorola update from their software update tool. It removed the "unlocked" text, put the T-Mobile startup animation back in and soft bricked it.
I have now sent it off for repair...three weeks
Thanks for the comment

[Q] Problem when my phone is recovering from Sleep mode

Hi everyone !
I'm new here (and not a native english speaker, so apologies in advance for any grammar mistakes)
Before making this thread, I looked for info here, but I'm not sure for what to search.
I'll try to explain my problem here.
I bought a Galaxy SIII from my provider 3 weeks ago and everything looked fine, till last week.
Some times to time, with no apparent reason or cause, while my phone is on sleep mode, on my desk, or in my pocket, playing music, I have the following problem: when I push the on/off button to wake up my phone, my screen is turning on, taking me to the lock screen.
But, my screen brightness is very low, like set to the minimum.
And when I draw my unlocking pattern, screen goes black.
Bottom buttons are lit and my phone seems to be OK, I can feel haptic feedbacks.
But the screen is black.
If I push the on/off button again, screen stays black and bottom buttons are not lit anymore, as a usual Sleep Mode.
If I push on/off again (depending on how much I wait between 2 on/off):
- My phone awakes from Sleep and takes me again to the unlock screen, brightness still very low. And after the unlocking pattern traced, black screen again
- If I didn't wait enought after putting it into sleep mode, in this case, I don't have to redraw the unlocking pattern. I'm back to my home screen...
for 1/4 of a second, stilll with brightness at the minimum. And screen goes black.
And after a serie on onoffonoff, boom, my screen is back to full and normal brightness and everything is OK.
At the beginning, my phone did that once in a while. I thought at the time ti was after pushing the on/off button while using a CPU/RAM hungry app, my phone struggling to recover....
But now, it's totally random.
Depending on .... I don't know what, I have to do the onoffonoff thing 2, 5, 10, 50 times in a row so my phone can recover from is half comatose.
Yesterday, I could not use my phone for half an hour ...
and if someone calls me, I hear the ringtone, but screen stays black.
I can answer the call (but not knowing who's calling) by sliding on the part of the screen where the slider normally is.
Funny thing is about removing the battery. It doesn't solve my problem.
When I do so, my phone boots, I see the "Samsung Galaxy SIII" boot screen, on low brightness (whih is not normal ...)
After that, I normally have another boot screen with my provider's logo and tone. But screen goes black again (but I still here the tone)
Then I realized it started to happen when my phone proposed me a Samsung update.
I tried to reset my phone to factory settings but it didn't work, the update was still here.
For a while I thought my problem was solved, because my phone behaved normally for 3 or 4 hours, without problem.
But it came back.
I found on the internet several "almost-same-problems" without proposed solutions.
Like checking if the proximity sensor was blocked by a protective transparent plastic sheet, or a case.
I tried to to remove mine.
Didn't work.
Some people said it was linked to their phone trying to acquire a wifi network.
My wifi on or off, withiin or without the range of a wifi router didn't work ...
I tried to note things down about what I did, when, how, app launched before the problem appears.
I checked battery info (temp, voltage, etc).
No pattern emerged.
So.
Hs anyone of you enountered the same problem ?
Do you have ideas, solutions I can use ?
Or maybe a voodoo prayer ?
I could sent it back to my provider which will bounce it back to Samsung. But it will take ages (3 to 4 weeks ...) :'(
Thanks in advance !
do a factory reset, go completely stock
if that doesn't help, send it in
Glebun said:
do a factory reset, go completely stock
if that doesn't help, send it in
Click to expand...
Click to collapse
That's what I did.
I tried by going into the Parameters menu, and reseting.
I tried by booting my phone with Vol+ / Home / Power buttons to access a console mode and do a wipe data/reset.
The problem is that my phone got an update like one week ago from a 4.?.? to 4.1.2.
And even with a reset, my phone reboot with the 4.1.2 version, which seems to cause this problem.
Or maybe not, but I can't be sure.
As I said, after a factory reset I did yesterday, everything went well for 3 or 4 hours and the problem reappeared.
send it to the service

[Q] Wierd behaviour on lockscreen

Hello all,i'm using a 16Gb N9 WiFi only version,i'm on 5.1.1 stock rooted,mainly for AdAway use...I've been experiencing wierd issues for the last week or so,when either double tapping the screen,which doesn't seem to work 100% as has been until now.
What's more, i'm using a Moko Flip Case and flipping the cover doesn't always work as well.These are not concerning by themselves but despite which way i try to use to turn on the screen (double tapping,opening the cover,pushing power button) when the screen turns on and i swipe to unlock then immediately the screen turns off ,no matter how many tries i try to swipe to unlock,it turns off thus making a need for rebooting mandatory....
Has anyone else experienced this? Should i factory reset the tablet or is there a fix,mainly for the last part..Thanks for taking the time to read this!
Workaround
It has been happening ever since upgrade to 5.1.1. Reboot fixes it but is annoyance. I tried wiping cache and factory reset, but the issue still persists. The easiest solution is to left swipe on the camera to open the camera app, then use the back button to come back to login screen. This time around the pattern will work.
tagari said:
Hello all,i'm using a 16Gb N9 WiFi only version,i'm on 5.1.1 stock rooted,mainly for AdAway use...I've been experiencing wierd issues for the last week or so,when either double tapping the screen,which doesn't seem to work 100% as has been until now.
What's more, i'm using a Moko Flip Case and flipping the cover doesn't always work as well.These are not concerning by themselves but despite which way i try to use to turn on the screen (double tapping,opening the cover,pushing power button) when the screen turns on and i swipe to unlock then immediately the screen turns off ,no matter how many tries i try to swipe to unlock,it turns off thus making a need for rebooting mandatory....
Has anyone else experienced this? Should i factory reset the tablet or is there a fix,mainly for the last part..Thanks for taking the time to read this!
Click to expand...
Click to collapse
Does the problem go away when you take off the flip case? If so, put it back on and see whether you can make the screen go black depending on how you fold the case behind the tablet. If it's one of those three-part covers, flip the case to the back, then flip the outer third over once more - does that turn off the screen? The screen turns off when the magnets on the case and on the N9 are aligned, and this can also happen with the case flipped to the back.
Maya05 said:
It has been happening ever since upgrade to 5.1.1. Reboot fixes it but is annoyance. I tried wiping cache and factory reset, but the issue still persists. The easiest solution is to left swipe on the camera to open the camera app, then use the back button to come back to login screen. This time around the pattern will work.
Click to expand...
Click to collapse
Thanks!! I thought I was the only one with this,thanks for the workaround! You saved me from factory resetting!! Many thanks!!
christian_l said:
Does the problem go away when you take off the flip case? If so, put it back on and see whether you can make the screen go black depending on how you fold the case behind the tablet. If it's one of those three-part covers, flip the case to the back, then flip the outer third over once more - does that turn off the screen? The screen turns off when the magnets on the case and on the N9 are aligned, and this can also happen with the case flipped to the back.
Click to expand...
Click to collapse
Indeed it does go away without the case, I do have one of these three part covers. It works fine when the cover is on the back but I left for a business trip and left the cover at home at the moment. I'll definitely try when I get back! Thanks for the info!!
Sorry I was busy and didn't have time to check xda... Thanks both for your answers!!
My wife is having this same problem with the Nexus 9 I got her for her birthday... I got it with the official keyboard case, but when the problem starts happening, it continues to happen even when the tablet is completely removed from and separated from the case. I also tried running the camera from the lockscreen, returning to the lockscreen, and trying to unlock the tablet without success. She is just using the slide to unlock screen without any security.
weird...lucky mine doesn't do this...or knock on wood, hasnt yet lol
i have double tap to wake up tablet option from eX kernel and i also use a passcode unlock screen and i also have a moko type magnetic case...everything is fine for me(so far...)
ot: what lockscreen app passcode app works so that when u enter 4digits u DON"T have to press the enter key to get in...i hate having to press the enter
in iOS iphone u just need to enter 1 2 3 4 <unlocks> goes to homescreen
stock android : enter 1 2 3 4 ENTER key then it unlocks

Unresponsive touch screen.

Got it quite a few times now. I cant knock on, second screen wont scroll. Turn screen on cant unlock. Have to toggle on and off a few times or just leave it alone for a while and try again.. It doesnt respond to touches at all. Anyone else?
It's happened to me a few times as well, usually when my alarm is going off so it's doubly annoying because i can't hit snooze. I usually end up pulling the battery out for a second, but I really hope they're working on a fix for this.
I just noticed this problem today as well.
I have the AT&T model.
The top left corner of the screen (right below the double cameras) was not responsive at all until I restarted the phone.
Not sure what caused this issue.
The top left off The screen has been unresponsive a number of times. A restart works for a few hours. Then it stops working again...
clockcycle said:
Got it quite a few times now. I cant knock on, second screen wont scroll. Turn screen on cant unlock. Have to toggle on and off a few times or just leave it alone for a while and try again.. It doesnt respond to touches at all. Anyone else?
Click to expand...
Click to collapse
I'm having an issue with the touch screen in the corners. Top left and bottom right are unresponsive at times, rendering the backspace button on my keyboard useless from time to time, and also won't let me start chrome from my home screen (my rightmost icon in the bottom row). On the top left, it prevents me from hitting the back button in gmail and other apps. Super annoying.
I didn't see any articles about it or find the unresponsiveness noted in any other reviews, have had the phone about 2 months now. I'm also not sure if recalibrating the screen would help since that is not in the default settings (maybe it is In the hidden menu?)
I have the T-Mobile V10.
Are any of you guys using Nova Launcher?
This started happening to me as well. I thought it was an issue with giving Nova Launcher root permission however the issue came back. There is a thread on the reddit as well with people having the same issue. I've been in contact with T-Mobile as well as LG. I'll update if I find anything else.
Sent from my LG-H901 using Tapatalk
Could we include carrier and what launcher, even if it's stock.
I ask because there's got to be a common denominator and I'm guessing it's going to be a combo - and with more info we'll be able to figure out the issue.
It can only help.
I just had this for the first time and only once during typing in whatsapp. I'm using a whatsapp mod.
which i believe is the cause for mine. i had to click the power button and then turn it on again to work, after that no problem anymore.
Same problem. I have the Verizon lg v10 stock. The left too corner under the cameras goes dead and won't respond until I reboot. After reboot all is fine for a few hours, then boom, it happens again.
I thought it was an issue with just my phone cuz I couldn't find anything about it, went to Verizon for the 14 day worry free guarantee, got a brand new one out of the wrapper, all was fine for a day, then same issue.
Same issue here. The upper left corner of my screen will become unresponsive at times and the only thing to fix it is a reboot. I have AT&T stock V10.
Not just an LG issue.
I have a ZTE ZMAX. In the last few days it is doing the same thing. The dead spot in the top left follows the rotation of the screen. I have done a factory reset and problem returned. Seems like its a problem for many phones. It happens with the original launcher and Zeam launcher as well. It would be great if someone figured this out.
I have the same issue with my verizon v10, i have not found out the cause but i did find something that works for me. I reset my app preferences in application manager and everything went back to normal and no issues since. Hope this helps
@jstringn1 thanks for the info I'll try it out.
Honestly it's sounding like and android issue.
Hopefully Google addresses it soon.
SAME. Just bought the V10 on Sunday and I've already noticed the same thing; the upper left hand side of the screen is unresponsive. It seems to ONLY be for certain things though. Stupidly I rebooted to fix it before I fully tested that theory, but I think it's only with certain things. For example, when I open GoogleMaps, I can't hit the "Menu" button in the top right hand side. But if I close the app and go to a screen where I have an App in that same corner, tapping on it seems to open it right up. I hope that info helps to troubleshoot....because I'm ready to take this phone back....but not before I post my review on my YouTube channel.
@jstring I just tried your suggestions. Seems to be ok thus far, but I'll check back in with you all later to let you know if the issue has come back. Because a reboot fixes too...but only temporarily. We'll see.
jstringn1 said:
I have the same issue with my verizon v10, i have not found out the cause but i did find something that works for me. I reset my app preferences in application manager and everything went back to normal and no issues since. Hope this helps
Click to expand...
Click to collapse
Did you go to Settings -> Device -> Apps -> Downloaded -> More Options (three dots) -> Reset app preferences?
If so, I tried this , but the top left corner of the screen is still unresponsive.
I also completed reset my phone to factory. No Nova launcher or anything else.
Really puzzled here.....
New findings:
Every time when I open the LG music app (the purple one that came preinstalled), it will trigger the issue. (Please try this on your phone and post your findings )
same issue here
the bttom right is not responsive
and i need to restart it every now and then
i am using it without any mods
but
any one would relate this issue with the latest update as as far as i remeber it showed only after the software update
my software version is
V10 ame xx
I think it started happening after I got the AT&T update. Didn't think it was related, since Verizon V10 has the issues too.
Same here
Verizon
stock
Nova Launcher
Top left unresponsive, follows on rotate
Reboot fixes for a few hours
cHiLLyWiLLy78 said:
Verizon
stock
Nova Launcher
Top left unresponsive, follows on rotate
Reboot fixes for a few hours
Click to expand...
Click to collapse
Did your phone get an update from Verizon recently?
v10 AT&T, has the issue. Using NOVA Launcher. Willing to change launchers if I can use that back button.

notification menu won't drop down - top of screen unresponsive

I'm at the end of my rope with this. Several days ago my s5 started refusing to drop down the notification panel and the quick settings menu. I'm running stock rooted kitkat 4.4.2. I did a factory reset, disabled xposed (in case some notification bar mod was causing this even though I hadn't changed my xposed settings for months), got a replacement SIM card, went back to an earlier version of google, and now sometimes it will work for a whole day and then stop responding again. I took out the external SD card and it still does it. I uninstalled anything new (not much) that had recently been installed. I have been using Nova as my launcher, so I tried going back to just Touchwiz, but no change.
It's not just the drop down screens, when I open Titanium Backup and try to use the "clear" or "menu" buttons at the top of the screen, they don't respond either. It's like something is freezing the top half inch of the screen (I measured it in frustration).
I went into the diagnostic menu and checked the screen and everything is responding as far as I can tell--the line goes up to about an eighth of an inch from the top of the screen but the pictures for this when I googled looked like that so maybe they aren't supposed to reach the actual top of the screen.
Googling shows that several models at least of Samsung, and even some Sony, are showing this problem and nobody seems to know how to fix it.
Has anyone got any clues they can give me about this? I can't seem to find what the problem is.
Update--I tried flashing Hispasian Kernel but it didn't solve the problem. I tried defrosting everything I had frozen with Titanium Backup and that didn't solve the problem.
Flash latest stock lollipop FOL1 and see if it's still there. If that doesn't work then you have a hardware defect and you'll need to get your phone repaired.
That's a good idea. Thanks!

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