Database Users

Screen Lock issue with HD2

After i hang up on a call (when the phone is in sleep mode and the screen is locked) the screen unlocks. this is quite contrary to what is mentioned in the phone manual chapter 1 page 45. this becomes an issue since i use a bluetooth headset and the phone remains in its sleeve/case and after every call, a whole bunch of applications will launch since the case is in contact with the screen. have i overlooked some settings or are there other owners who have faced this issue?
ideas and suggestions welcomed

did you check it out if any of the hardware buttons being pressed against the case hence wakening up the phone.?

i had it to only closed al my apps in taskm and it stoped flickering

My HD2 is also behaving in the same way even in controlled test conditions - the phone unlocks when a call comes in (I'm presented with slide to accept or reject call) The phone unlocks during the call, but fails to lock again on disconnect (either by pressing "end call" or hang up via bluetooth).
Can anyone verify this? Is it interacting with something I installed?

I believe I found a (complicated) workaround.
What I want: leave HD2 inside pocket, answer calls with bluetooth headset, hang up and phone will go back to lock.
Problem: After I hang up using bluetooth or press the big red "End Call" button or the other party hangs up, the phone stays unlocked! It stays powered on and all kinds of buttons gets clicked.
Practically all lock sw uses their own lock screen (which I don't want to install). CSDevCtrl does not trigger by phone. TouchLockPro uses its own transparent lock screen but can respond to phone events. Using the !SUSPEND for TAPI\Ended under settings does not seem to work when the screen dims about 50 secs into the call.
Solution: Use TouchLockPro together with LockAndOff. Get TAPI\Ended to run LockAndOff will turn phone off, whether by bluetooth, big red "End Call" button, or the other party hangs up.
BTW: I think there is some confusion on whether the phone locks when you
1. press the big red "End Call" button, or
2. the hard "End call" button
in the forums.

I noticed that HD2 have a light sensor next to the top ear speaker.
During a call, if the phone is put near the ear and cover the light sensor , the screen become non-active which is good.
If anyone can come up with a lock sceen using this light sensor , then the problem with random launch of program when phone inside pocket will be solved.
This lock screen should only activated right after an end of call, beacuse , sometime you may want to use the phone in a dark place.

linivan said:
I noticed that HD2 have a light sensor next to the top ear speaker.
During a call, if the phone is put near the ear and cover the light sensor , the screen become non-active which is good.
If anyone can come up with a lock sceen using this light sensor , then the problem with random launch of program when phone inside pocket will be solved.
This lock screen should only activated right after an end of call, beacuse , sometime you may want to use the phone in a dark place.
Click to expand...
Click to collapse
It's the proximity sensor that turns the screen on and off during a call, not the light sensor. How else would it work in the dark? (which it does)

johncmolyneux said:
It's the proximity sensor that turns the screen on and off during a call, not the light sensor. How else would it work in the dark? (which it does)
Click to expand...
Click to collapse
My proximity sensor does not work, when I am getting a call my screen turn off and when I am taking the phone out from my face it turn on only when I am out side at the sun!! the screen stay off when I am inside room. I tested it with flsh light and it is working also.

I have a T-Mobile US version of the HD2. I am having the same problem when using the bluetooth system in my car. After answering or making a call the phone stay unlocked. And then starts making random calls while I am driving!!!!
There has got to be an easy fix for this!!!

Buy pocketshield, problem solved.

i have this unlock problem with 1.48 rom and i solve it by pressing start button and lock. after that everything works fine unless i change theme in settings. then just repeat first step.

Solved
Same trouble with me until I use the following software. I tried it and it's almost perfect. unzip it and just copy to your HD2, run CallerLoc.exe and click Yes, you'll find:when you hang up, or he/she hang up a call, or a call is established, the screen will turn off.
Why say 'almost perfect', the software is in chinese, but the filename is in english. and it's a call location software but with the function we need.
To stop or before you delete the software, run Callerloc.exe and click Yes again.
Hope this will help you. Sorry I don't find a English version of this software. I esure and I'm using this software perfectlly with my Leo.

theciscokid said:
Buy pocketshield, problem solved.
Click to expand...
Click to collapse
Same for me

Greetings.
I understand this is quite an old thread I'm digging up but I need a little help as well and I didn't want to start a new topic just for that.
I've this silly problem, appeared right out of the blue:
You all know the standard manila behavior, when the phone is idle, the screen first dims and after some more time, depending on your preferences, the screen locks. It also locks if you press the power off button. This all was happening to me till this morning.
I added an event in the calendar (the only change I made today) and after that, my phone dims and then goes in sleep mode after the designated period of time, but DOESN'T lock!!! It doesn't even lock when I press the power off button. I can still lock it by pressing Start and then lock or by press and hold the power button and choose the lock phone option. So one would say that it's still operational, so why bother about it, but I kinda liked the standard function and I have to freaking idea why it changed!!!
I'd be most appreciative if you could offer some help with that.
Oh, I forgot to mention. Soft reset didn't solve the problem. Erasing the calendar event didn't either.
My phone runs the factory ROM (1.66.482.1 ELL), I haven't changed anything other than user settings (yeah, I'm a noob... )
Thanks in advance!
Nasos

Pocketshield could be the end of your problems. You can try it for 10 days and see how it goes...

But why do I need to buy third party software in order to revert my phone to it's original operation?
No, this is not the answer I am looking for. I was wondering if you know of any kind of settings that might have changed by accident and caused this undesired behavior.
Thanks.

The best to return to normal operation would be a hard reset. Or you can spend a while trying.
You can try
HKLM\Software\Microsoft\Shell\Lockscreen\Enable=1
HKLM\Software\Microsoft\Shell\Lockscreen\Active=1

Thank you very much. I opted for the hard reset option... I hope it stays ok this time!

My HD2 also had some strange unlocking and unwanted calling.
I noticed it appeared when using the android style lockscreen.
When I changed back to the original one, problem solved

i had this too. the andriod lockscreen seems to be a bit buggy last time i used it, i accidentially called 7 random numbers

Screen blank on power on

I've had a problem with my E900 since I got it with regards to the screen. I was hoping Mango might fix it but it doesn't seem to have.
Sometimes if I press the power button the screen backlight comes on (i.e. screen goes from off state to powered) but there is nothing on the screen. No amount of button pressing will cause the screen to show anything.
If this happens I have to turn the device off again (backlight then goes off) and try again. Sometimes it can take 2-3 times before it turns on successfully with the lock screen.
I also have this if an incoming call attempts to wake the phone and also alarms too.
Does anyone else have this issue?

I confirm this one popping sometimes. Not that often that it becomes annoying, but nevertheless.

Did you find a solution to this problem? I am experiencing it too and it is very annoying!

I've recently inherited one as well (E900 that is).
The one I have has been dropped, the backlight powers, but no drawing on the screen.
I've disassembled and re plugged everything (bugger stripping down!) but still no luck. I've done a VolUp+Down+Cam+power hard reset, and when I plug into PC Zune says setup needs completing (so it has reformatted) but still no luck.
I cant see anything fried, and no damaged ribbons as far as I can see, any ideas?

I sold the phone a while ago, and never solved the problem. I think it's a firmware issue.

PaulMdx said:
I've had a problem with my E900 since I got it with regards to the screen. I was hoping Mango might fix it but it doesn't seem to have.
Sometimes if I press the power button the screen backlight comes on (i.e. screen goes from off state to powered) but there is nothing on the screen. No amount of button pressing will cause the screen to show anything.
If this happens I have to turn the device off again (backlight then goes off) and try again. Sometimes it can take 2-3 times before it turns on successfully with the lock screen.
I also have this if an incoming call attempts to wake the phone and also alarms too.
Does anyone else have this issue?
Click to expand...
Click to collapse
hi.
What do you mean "somethimes if I press power button"?
Is it pressed with purpose to lock the phone, press it to turn off phone (background slider shows to power off - on Mango and beyond version) or press it accidentally?
Cheers.

So, I did a phone reset. Unfortunately the issue is still present!
Sometimes when I press the power button to unlock the phone the screen is lit, but stays blank i.e. no lockscreen wallpaper, no nothing. The same happens sometimes when I get a phone call - the phone rings and vibrates, the screen is lit but stays blank.
When this happens I have to press the power button to put the phone into sleep mode and press it again to wake it up.
What I found is, when the issue occurs the screen is actually responsive. For example I can slid up and unlock the phone then I hear the unlock "pop" sound. It's just that nothing is drawn on it!
I was wondering if anyone else experienced the same behavior and found a resolution. Also I am not sure if this is a software or a hardware problem. If I could confirm it was a hardware problem I would call LG and have the phone repaired or replaced.

i have exactly the same issue as you, it gets really annoying.
i heard from someone online that the only way to resolve it is to replace the motherboard

billybrown said:
i have exactly the same issue as you, it gets really annoying.
i heard from someone online that the only way to resolve it is to replace the motherboard
Click to expand...
Click to collapse
I am pretty certain this is a hardware issue. I am calling LG tomorrow and hopefully they'll take the phone for repair/replacement.

I sent my phone for repair. Today I got it back, and guess what?!
The issue is still present! It seems, they "couldn't reproduce" or something.
What should I do now?
EDIT: If anyone is interested, here is a video I just captured which clearly demonstrates the problem. http://youtu.be/38kF9RYs_bU
I'm sending the phone back for repair tomorrow with this video attached.

Hey, might not be an issue at all, but in the video, I saw that the two times you were able to get it to go blank you had your finger on or near the proximity sensor. I wonder if there is something that could be the trigger.
Just wondering if you can duplicated it or cause it only when you have the proximity sensor blocked, or if it truely is random.

You are right, it might has something to do with the proximity/light sensor.
On the other hand, this issue occurs even on incoming calls when the phone is placed on a table, screen up and nothing around the sensor.
Today, I visited my local carrier shop and left the phone for repair again. They told me, since this is a second claim they'll run it through the process faster, so I expect to get it back next week.
Will post an update.
UPDATE: My phone was replaced. Yesterday I got a brand new unit, yeah! It was stock wp 7.0. I plugged in my sim and used the phone the whole day, no sign of blank screen issues. Last nigh I installed all the updates (total 5 I think) up to OS 7.10.8107.79, FW 1.0.16.10. Guess what?! Same issue!
I am crushed

Lock key and backlight problem (B7610)

First I noticed that my Lock button doesn't work anymore. When I press it, nothing happens. I thought it's a bug or something so I flashed different Roms but the problem still exists...
it is not a hardware problem, because i can hard reset my device normally.
When the phone goes to stand-by mode, it stays off for one second and then it turns the screen and backlight back on. That runs my battery out quite quickly.
I have searched forum for this problem, but did not find any answer.
Is there a solution for this??

the same problem here!!!
have someone an idea?!

I've had the same problem with my Omnia i8000.
But my Phone will come back on only if I am listening to Music.
Does this happen to you while listening to Music ? If Yes, then just turn the volume one step down. Thats a workaround I've found for my phone.

has anybody fixed this issue on their omnia pro yet?
i am facing the same issue, the screen is always on as the lock key doesnt do anything....the only time the screen shuts off is when using the touch music player after 60 sec.(backlight setting when phone not on external power)......screen turns on when the song ends.....hard reset to factory settings doesnt fix the issue......plz help if u hv a solution figured out....thnx

SangisettyNaresh
Amazing... You are my lifesaver...I have been facing this problem since last one month.
Your idea worked for me but can you tell why this problem occurs? and this is a temporary solution...Is there any permanent solution to this problem?

Greetings to all. I had this problem for a while. I solved it with 2 programs - the first is AEButton and the second Smart Lock. I mapped the W&L button to "lock device"(AEButton). After that going to SmartLock ticked: Lock screen and then stand-by. In this way I used the W&L buttons as lock key. Worked for me, hope it works for you!
P.S. I am using custom rom without the touchwiz interface, I dont know if that makes any difference!
EDIT: It fixes the issue partly...the screen pops out every 20 seconds or so.... Seems to me it is a hardware problem. Flashing with different ROMs doesn`t seem to work.

Screen Freeze

Hello, I am experiencing a new problem since the 2 last updates ( last one was 12.1-YOG4PAS3AJ ) as the screen freezes randomly. Mostly when receiving a call which is very annoying as you cannot answer. So I have to reboot the phone 3 to 4 times a day. I am now thinking about switching to ZUI as I use the phone as my daily driver.
Anyone experiencing a similar case?

i encounter this when you change adaptive brightness.

Ok thanks, I put it to automatic to see if the bug stops

Screen freeze
I just bought this phone yesterday and I also have same update and the screen goes off and comes on while taking calls and ending calls.

Any solution for this problem? I face this problem even when i turned off adaptive brightness

@Glops4 Do you find a solution for the problem?

nimmur2000 said:
@Glops4 Do you find a solution for the problem?
Click to expand...
Click to collapse
I just did as you suggested, it is now working fine. I guess the bug still exists.

i have the same problem :'( ,, sometimes phone doesnt wake up from sleep , and sometimes after a call the touch stops working but buttons work .

Any solution or work around? Did you use any short key for long press of home/back button? I felt whenever i use lock screen as a option when i long press home/back button, i am hitting this issue. Please confirm @hwoarang626 & @Glops4.

I tried the long press home for screen off.. But i dont encounter tbe issue... I only get it some times after a call

My system details

Mine was doing the same thing, I am up to 12.1-YOG4PAS3OH, that update solved the problem.
Edit: hwoarang626 looks like you are still having the problem?

it happened 2wice then i enabled adaptive brightness and stopped using double tap 2 wake and it didnt happen again .

After last update I cant use fingerprints capasitive button as back button. I couldnt find any settings. Please help me. Thanks

I have left the buttons default, and do not use the 2 tap to wake screen.

The settings I use are Adaptative Brightness on and LiveDisplay off. Never had a screen freeze since.
And long press back button didn't help either.

ZUK Z1 screen hanging when call comes
I am also facing same issue as you people mentioned
Screen Hanging when calls comes !
Pls suggest how to fix this problem ?

The same proplem
Hello,
I have also got the same problem with freezing the screen.
I can't say on wich time it will happen. It happend radomly.
Currently my version of android is:
Cyanogen OS: 12.1-YOG4PAS3OH
Kernel: 3.4.0-Cyanogenmod-gef06bf8 (build date 28 of october 2015)
I have got this mobile for a week now, didn't tweak with this device.
Does somebody fix this problem?
With kind regards,
Paul

ZUK_USER said:
I am also facing same issue as you people mentioned
Screen Hanging when calls comes !
Pls suggest how to fix this problem ?
Click to expand...
Click to collapse
are you still facing the same problem?

screen freezes during/after call !!
did you solve this problem?
i too have posted the same problem here ..
any suggestions?

Home button problem

I have a problem with my S8. After locking my phone it randomly vibrates and turns screen back on asking to unlock (enter passcode or scan fingerprint). Sometimes this happens right after locking and other times after 5 seconds when my phone is already placed on the table. When I unlock the phone there is no notification. I can't seem to find out whats causing this. This is not always (but most of the time) happening though, its really random.
Checked internet. Checked Reddit. No apps enabled in accessibility. Smart Alert disabled.
Its driving me nuts, please help out.
EDIT: When removing passcode the phone unlocks itself to the lockscreen. Just happened after 15 seconds when laying flat on the table. Should I leave my house??? haha
EDIT2: Seems like the homebutton is registering presses. When 'Unlock with homebutton' is on it go's straight to the homescreen when above happens and when its off it turns on and just shows lockscreen. Really strange..

Seems you got faulty unit, ask to return.

kornelius1982 said:
Seems you got faulty unit, ask to return.
Click to expand...
Click to collapse
Don't think so because it only happens when the phone is locked. When the phone is unlocked it behaves normal..
Thanks for the suggestion though

Reflxxx said:
Don't think so because it only happens when the phone is locked. When the phone is unlocked it behaves normal..
Thanks for the suggestion though
Click to expand...
Click to collapse
Actually, this is a HUGE issue IMO and abnormal behavior of the phone, which is subjet to return.
You should be straightforward in your decision or get used to the issue.

kornelius1982 said:
Actually, this is a HUGE issue IMO and abnormal behavior of the phone, which is subjet to return.
You should be straightforward in your decision or get used to the issue.
Click to expand...
Click to collapse
I'm tryning to say that I don't think this is a hardware issue because than it would be all the time, must be software related but can't seem to find out whats causing this.

kornelius1982 said:
Actually, this is a HUGE issue IMO and abnormal behavior of the phone, which is subjet to return.
You should be straightforward in your decision or get used to the issue.
Click to expand...
Click to collapse
F*CK, I think I found it. I disabled AOD, with it enabled I don't seem to have this issue.. :/

S8 Unlock problem
Im having the same problem. I unlock using the pressure sensitive home button. After locking and unlocking 3 to 4 times the home button does not respond "only on the aod screen". Then suddenly it unlocks and when I lock the screen again the phone vibrates and unlocks the screen itself
Plz help me out

I'm having the same problem. Sensitivity changes randomly. Sometimes it doesn't seem to recognize presses and sometimes it recognizes them even when I'm not touching that area. All this happens when screen is locked. AOD disabled. Sensitivity to 2 (close to very sensitive)

I have the same issue .. AOD and the rest are off! Case was taken off also. What's going on !? I don't now what to do with this... ? Mayby the best option is to change it for iphone? ;((((

Having exactly the same, however samsung technician was unable to replicate it for a whole day and they sent it back to me without any repair... Swap is also not an option as samsung will test phone on their side anyway and in case it's "good" they will send back same unit.
Issue is really random and sometimes it doesn't occure for over an hour. Then it starts vibrating and waking up after touching screen in top or middle area couple of times (screen off, AOD off, no case, no screen protector), multiple vibrations after pressing "home" button or delayed vibration.
Other reports are on reddit (pm me for link) or different xda thread forum.xda-developers.com/galaxy-s8/help/hard-press-home-issue-t3597004/page4
Anyone able to record his issue to compare with others?

Same problem here....the hard press home button don't work sometimes and vibrate 3 or 4 time after press the button. I think is hardware problem, i have reflash the firmware with odin but no lock.
Inviato dal mio NX531J utilizzando Tapatalk

Samsung reflashed and calibrated screen on my S8 and its still the same.

Ollve said:
Samsung reflashed and calibrated screen on my S8 and its still the same.
Click to expand...
Click to collapse
Did you send the phone to Samsung assistance? And does the same problem? [emoji21]
Inviato dal mio NX531J utilizzando Tapatalk

I went to Samsung Premium Service and left my S8 (Exynos one) for 2 working days.
Sometimes when I press home button it vibrates once or with significant delay and then when you touch screen anywhere else (top, middle, edges) it vibrates again and wakes screen up. It looks like it cannot register/release pressure sensor correctly. Since they were not able to replicate this error they decided not to touch hardware at all, therefore just reflashed it and calibrated.
I'm getting this 2 or 3 times this every 15min, but it's hard to record, because when I start recording it's already working properly... Have you managed to record your issue to compare with other users having similar symptoms?

The same problem with my phone....unfortunately i don't have any record of issue. I think is a touchscreen problem
Inviato dal mio NX531J utilizzando Tapatalk

My pressure sensitive home button has a mind of its own like it works or sometimes doesn't register as a press then sometimes when I try press harder or softer it goes mad and registers lots of presses. Sometimes it just works properly though. Should I return it quick or is it just normal if the screen has to be cleaned or something?

I have same problem, i owe factory unlocked s8 created for caucasus region. my home button makes me crazy, even now when i was writing this, just picked my s8, i pressed hard on home button, on the screen off (I've enabled always on display) and no kind of vibration, than touched back button and it vibrated. So sometimes it vibrates 3-4 times when i hard press only one time, sometimes it's giving me very late vibration, sometimes i also think that i get notification and nothing is there. yesterday it gave me two vibration, during facebook scroll. i'm a big fan of samsung but, this s8 has too many hidden problems, bugs and luggs.
isn't it possible guys that in the next software update it will be solved?

Same problem here. I think there is another thread with this issue btw?
It could very well be a widespread issue but a lot of people might not even be aware of it because not everybody's using hard press preferring other ways to unlock/wake the phone.

Same problem
th.android said:
Same problem here. I think there is another thread with this issue btw?
It could very well be a widespread issue but a lot of people might not even be aware of it because not everybody's using hard press preferring other ways to unlock/wake the phone.
Click to expand...
Click to collapse
Me too ,its happend just wgen the phone is locked, when i hard press home button sometimes it gave me little vibration and when relased the correct vibration or other times it gave me 4 vibration.
It could be software broblem because when the phone is unlocked doesent happend and
too many people here have this problem

U won't find out when it will miss vibration or any other bug or lugg. I'm testing and testing, even i pushing home button half an hour without resting and there were no kind of bug. I think that, than when there is no too much free ram and also when phone is hot, also U have many apps minimized and u lock the screen. And at once u push hard on home button. It will fail vibration and if you observe during screen unlock, animation will stuck. It's opening bit-by-bit. Looks like very low FPS. So this 3d touch failure makes phone work luggy.
P.S. sometimes phone is cold, with much free ram and same happens((.
Also when phone is locked for long time. When you press hard on home button on screen off (with always on display) it will miss the first pushing.
Sometimes if it fails vibration, it continues doing this for minutes, even phone restart will not solve the problem.
There is something wrong. This phone has ram managment problem, there is something strange. This device is a real rocket but it isn't well optimized.
I hope Samsung will fix this bugs in the next software update, otherwise i think i will go to iOS. Just i need smooth animations, smooth app open/close, without stucking. Without luggy, without bugs.
Whith this problems this really fantastic devise is nothing.
P.S. i'm a big fan of samsung. Have had many iphone, and thinking to return there.
Sorry for my english.