Phone constantly locks and sometimes unlocks - Samsung Galaxy A50 Questions & Answers

Hi, i have a big issue with this phone, i bought it like 2 weeks ago.
Since the 2nd day of use, i started to experience this issue, sometimes and usually when im not using wifi but mobile data, the screen goes to lockscreen, if i try to unlock it will lock again and that happens a couple of times, maybe 2, 3, 4, 5 times, sometimes i have to press lock button and try again. its really annoying, because somtimes it doesnt happen in a lot of time and then after 1 hour in the street and while im using it it locks and unlocks like crazy.
i did a soft factory reset but didnt work, i even tried in safe mode and it still happens.
yesteday i noticed that it even wakes up for no reason, that happened while i was driving in a highway, it suddenly wakes up like if i touched it, i disabled every feature about auto waking (like 2 touch, motion detection) but it still happens.
the only thing that makes it stop is if i switch airplane mode, so i guess maybe its something related to network (not wifi or location or mobile data because i disabled those and still happened), but when it is in airplane mode it will work fine, obv thats not a real solution.
i tried disabling and uninstalling a lot of apps but i cant figure out whats making this, im pretty sure its software problem, something related to network but i dont know.
do you have any ideas? even if i take it to tech service it will be hard to show them because sometimes it doesnt happen in hours.

anybody has an idea what could be causing my phone to lock for no reason while using it on the street?

Your phone gone kaboom

I have same problem, the problem is caused by the weak signals,which means that your phone connectivity is constantly changing, for example on a highway or in a basement. Solutions I have none, just waiting samsung to make a fix

Yes, thats exactly the problem. When signal is weak the phone locks or unlocks. I asked for a new phone at the store and they gave me a new one.
Look
htt ps://r2.community.samsung.com/t5/Galaxy-A/Samsung-a50-locks-and-unlocks-automatically/td-p/1701267
Are you having this issue?
htt ps://photos.app.goo.gl/5veszyLb4UGJZRV9A
(Delete spaces in link between htt and ps)
Btw i don't think this is a software problem because if it was a software problem all phones would having this issue. I think it's a problem with some hardware failing in some phones. IMEI of failed phone is 356711101439414 check if yours is similar

Related

HTC Touch Pro 2 & Standby of Death SOD

I had the Standby of Death SOD this is when the phone fails to come out of standby with a power button press. This issue only affects some people on some networks. I'm not sure if its a network problem or a software problem but as only a minority of people have it, I suspect its mainly a network problem there is a software solution.
The solution is to change the phone settings band option from auto 3G/2G to either 3G Only (WCDMA + UTMS 2100 in Europe) or 2G Only (GSM + AUTO) depending on your requirements.
Also read this thread http://forum.xda-developers.com/showthread.php?t=540943&highlight=standby&page=2 where the resolution was to get a new SIM.
Obviously this only solves the problem when the crash is because of the sim and/or settings which impact the sim. To rule out a software cause its best to start with a hard reset.
had this problem once: I switched on the camera, and then left the device on the table for a long time - so it went to standby.
I could not wake it up by the power button after 20 minutes, but as an incoming call came, it was ringing with a black display, and I could answer the call with my BT headset. screen was still pure black
finally I pushed the reset button and since then everything is fine - I still feel this was connected to the camera.
terta said:
had this problem once: I switched on the camera, and then left the device on the table for a long time - so it went to standby.
I could not wake it up by the power button after 20 minutes, but as an incoming call came, it was ringing with a black display, and I could answer the call with my BT headset. screen was still pure black
finally I pushed the reset button and since then everything is fine - I still feel this was connected to the camera.
Click to expand...
Click to collapse
Yeah if it only happened the once then that was probably the case, if you have the problem on a regular basis and you know its nothing to do with the camera (becuase you never loaded it) then you have the problem I am describing.
I have exactly the same problem has Terta.
I'm 100% sur that it's the camera that make this bug I have tried all my weekend to reproduce the bug a lot of time and it was always the camera...
Hope someone can fix this bug cause now I can't take any photo without soft-reseting my phone. Very, very, very annoying...
I messed around with the sound app SRS WOW HD for a while to get it work on TP2, with this installed, mine did exactly the same thing.
Sometimes it happened straight away (first sleep), other times it happened a day or so later.
Uninstalled, it did not happen again.
(Not the SIM or Camera for me)
Go figure!
Cheers
Jabberoo
Yes I guess there are many reasons for the Standby of Death, if you have ruled out all software causes such as the camera or installed apps then have a think about the SIM and/or the settings that impact the SIM.
Its the last thing most people will think about. It worked for me and got rid of a random SOD problem 2-3 times a week which coinceded with being in weak 3G areas (where the phone might switch bands automatically) although that never occured to me at the time.
You see I haven't installed other applications nor do I load up the camera and leave it running so I couldn't figure out what was causing it, it just happened randomly not connected with anything particular that I was doing.
i hope there is some kind of magical solution for this because i just got my Sprint TP2 today and I have this issue everytime my phone goes into standby. Pushing the power button wont bring it out but every once in a while opening the keyboard does. I have to continually reset my new phone just to use it
PS; beyond this annoyance, I love it!
coppertop24 said:
i hope there is some kind of magical solution for this because i just got my Sprint TP2 today and I have this issue everytime my phone goes into standby. Pushing the power button wont bring it out but every once in a while opening the keyboard does. I have to continually reset my new phone just to use it
PS; beyond this annoyance, I love it!
Click to expand...
Click to collapse
Try taking out the SIM card and see if it still happens everytime the phone goes into standby...
For the past few days I have been restarting my phone thru the soft reset. I think this is a windows issue...it has happened to me even without having the camera app running, and yes I checked the task manager. Hopefully this will be fixed when windows mobile 6.5 comes out, since Im getting frustrated with this phone...I have the phone for about a month now....grrr Stand by of Death!!!
coykiam said:
For the past few days I have been restarting my phone thru the soft reset. I think this is a windows issue...it has happened to me even without having the camera app running, and yes I checked the task manager. Hopefully this will be fixed when windows mobile 6.5 comes out, since Im getting frustrated with this phone...I have the phone for about a month now....grrr Stand by of Death!!!
Click to expand...
Click to collapse
so its not just mine then? this is ridiculous
Right, i had got seriously fed up with the standby of death happending, so i decided to contact HTC Europe directly.
They went over the usual 'factory reset' and 'update' solutions before coming to the conclusion that either there is a loose connection/faulty screen or there is some confiliction between drivers of the pre-installed software.
Because all HTC phones have 2 years warrenty as standard they have asked me to send if off so they can invistigate the problem and send me a replacement.
So if anybody is in the same boat as me a suggest you contact HTC and arrange a fix/replace.
Hope this helps.
nlel said:
Yeah if it only happened the once then that was probably the case, if you have the problem on a regular basis and you know its nothing to do with the camera (becuase you never loaded it) then you have the problem I am describing.
Click to expand...
Click to collapse
Add me to the list, seems to happen when I am charging my phone and it hits 100%
This phone reminds me of all my previous Sony Ericsson phones....very unstable OS' ... Makes me regret of getting this one and should've gotten an iPhone...but then again I'm pretty sure iPhone's have issues that apple fanboys aren't admitting. The reason that made me not get an iphone is because of ATT's ridiculous plan pricing...Its crazy!!!
if you are on sprints network, take out the sim card. This has fixed the issue for me. Used to get SOD a few times a day but opening the keyboard and then pressing the power button used to get me out of it. This was really annoying, and i read that it may be issues with the sim card. Took that out a week ago and havent had a SOD yet
jabberoo said:
I messed around with the sound app SRS WOW HD for a while to get it work on TP2, with this installed, mine did exactly the same thing.
Sometimes it happened straight away (first sleep), other times it happened a day or so later.
Uninstalled, it did not happen again.
(Not the SIM or Camera for me)
Go figure!
Cheers
Jabberoo
Click to expand...
Click to collapse
Jabberoo I can verify that this was caused by the SRS WOW HD program on my touch pro 2 as well. AS SOON as I uninstalled this application, restarted, everything was fine again.
I don't know if this will help anybody but if your phone suffers from SOD and you have TMO put it in airplane mode and see if it still does it.
I did that and it never went into SOD so that lead me to believe that the radio was the culprit. before that I tried everything listed. I don't have the 3G Plan so the 3.45.25.14 (T-Mobile) radio is the only one that worked for me.
I have the same problem.. just have installed spb mobile shell with mskip ultimate. I try to unistall all
I have a question: if I choose the 3G only option (WCDMA + UTMS 2100 in Europe) and the signal strength is low there will not be an automatic switch between 3G and 2G am I right? ...and i'm offline then
jabberoo said:
I messed around with the sound app SRS WOW HD for a while to get it work on TP2, with this installed, mine did exactly the same thing.
Sometimes it happened straight away (first sleep), other times it happened a day or so later.
Uninstalled, it did not happen again.
(Not the SIM or Camera for me)
Go figure!
Cheers
Jabberoo
Click to expand...
Click to collapse
sanjsrik said:
Jabberoo I can verify that this was caused by the SRS WOW HD program on my touch pro 2 as well. AS SOON as I uninstalled this application, restarted, everything was fine again.
Click to expand...
Click to collapse
Confirming this....
I had this issue for a while now...I tried hard resets, ROM flashes etc. It all works fine and was stable until I flash Sps Wow HD (I just realized this). Yesterday I flashed the latest HTC released sense ROM and right now after installing all the softwares I had the SOD again. Fortunately I saw the 2 posts and thought I will give it a try...and guess what?
I uninstalled the Srs Wow HD and phone is back to normal...no issues till now...will report later if I see any.
I am going to tmobile to get the SIM changed anyways hoping that it will fix another issue I am having. Every day I have to turn the airplane mode ON and OFF at least twice to get my data connection back. Mostly after a call and sometimes in random the phone is unable to reconnect to the data, it gives me an error that the epc.tmobile didnt respond or something like that. If any of you know how to fix this issue...plz help
I have been Experiencing this so called "SOD". HTC touch pro 2 sprint. On the 6.5.5 Build 23569 i had MAJOR sod issues. Energyrom , mighty , titanium , you name it. Ive Task 29 and reflashed them all multiple times. Still SOD was there... But i may have found a temp cure for me atleast. This is what i did....
First , i used task29 , next i reflashed the stock 6.1 rom, check for SOD... still had it... i task 29 again. Installed titanium edition , without sense. SOD was cured, phone worked fine, tryed to install sense 2.1, failed, SOD was back. Soo...
Then i task29 again, then repeated task29 a second time at the boot screen.... then i flashed Energyrom GTX themed 21907 build june 27th......Once it was flashed unplugged my USB plug and plugged it into the usb wall plug i have . Installed LUMOS, light sensor still was inactive and no response, could not brighten and still nothing... Installed G-light right after lumos without uninstalling lumos.... Still plugged into the AC wall USB plug....let it sit. Still nothing, couldnt adjust or brighten..... So i task 29 AGAIN... then flashed 21907 build GTX themed again... once flashed, unplugged it & back into wall charger... Installed lumos.... SUDDENLY!!! the sensor worked, and was accepting light AGAIN! ...
So i ran the LUMOS wizard, followed instructions and my phone was SOD FREE!! Let it sit over night, was fine....I wanted to see now if i could overwrite / flash over GTX themed with DiNiK glass cause i liked it better... so i DID NOT USE task29 this time, just reflashed over GTX themed one With DiNiK glass... same build 21907 and followed all my same steps, with wall plug, installed lumos, did the wizard,.... WALAaa.... works still like a charm. Have been using and testing it for 5 days, SOD is gone as far as i know.... ALSO in options, under setting / system / power / batt... i turned off the option to charge it when plugged into PC....Not sure if it helps or not. But Something i did is doing the trick. Seems between the backlight, and something to do with my 2.0 usb cord thats messing it up.
Seems to be cured... Still not sure exactly what fixed my phone. But between all that, IMO i believe installing lumos and glight triggered something also i think not letting it charge thru the PC, and only using a wall plug for charging has something to do with it....Either way . now its back to normal working just great... ONLY running LUMOS cab, and all the games i want. Energyrom Build 21907 DiNiK Glass Themed june 27th.... HOPE this helps!!! Have a wonderful DAY!

[Q] Random slowdown/WiFi freezing

Hi guys, hopefully someone can acknowledge if this is a common problem or not.
Basically when playing games (all games), does anyone get random slowdowns? Like the game becomes super laggy for maybe 3-6 seconds?
Using System Monitor, I don't see anything happening with the CPU such as hitting 100% or anything like that, so it's doesnt seem to be the CPU working on anything else. As said, it happens randomly but will always happen if playing. This doesn't seem to to happen in any non-gaming apps or the homescreen.
Secondly, another random issue seems to be toggling WiFi on. Basically when turning on WiFi from the Notification Bar, it will just sit there and then eventually the phone will freeze. I can still press lock button (on the right of the phone) which will put the srceen off and on as if it was locking and it even makes the locking noise. However the screen will be completely unresponsive, completely unable to interact with the phone.
Again, this is random and doesn't seem to be brought on by anything I can see.
Holding the lock button to restart the phone still works.
Running completely stock. (GT9190) on stock firmware for South Africa. No root, nothing.
So guys, does this happen to anyone else? Hopefully this is normal and will be fixed by Samsung with 4.3/4.4 or something.
S4 mini lags
I had the same problem but when i install New software update XXUBML4 it gone

Wifi problems after mm update

I've checked around and have seen other phones with the issue, but I've tried the fixes like forgetting network and resetting network settings. Ever since mm, every time my phone screen shuts off, it disconnects from wifi, kind of. I will still be connected jn settings, but it says no Internet available. I have to reconnect every time, and then it will work until my screen goes off again. I feel like this is killing my data since I don't always notice it. Has anyone had this problem and fixed it? I'm completely stock, no root or anything. Just did a factory reset a week ago and hoping I don't have to do it again since I'm finally set back up.
Have this issue with both wifi and mobile data. Mine doesnt matter whether the screens been off or not. Its like it goes to sleep periodically no matter what. Never had the issue until the latest update. Its not tied to a specific app, so its either the radio or a bug in the phone.

Verizon S8+ Bugs and Issues

Hi everyone,
I have 2 Galaxy S8+ from Verizon and here are my issues:
Past issues:
One of them did not come with the Galaxy Apps store (Not the plays store), and that phone also experienced the DQA issue
Current issues:
If I turn on Fingerprint gestures, the fingerprint sensor will stop working, this was an issue I had from the day I got the phone and has continued even through the updates. Here's a thread I made about it a while ago : https://forum.xda-developers.com/galaxy-s8+/help/fingerprint-sensor-t3595614
My internal speaker has detached, or at least I think that is the issue, as sometimes when I am in a phone call and shake the phone just a little bit, it will either start making a weird buzz sound or completely cut off the sound. Shaking it again will fix it, that's why I think it's a physical issue. I haven't dropped my phone and just in case I ever do, I have a case and a screen protector on it, and neither of them (phone, case, screen protector) have any damage marks on them.
The Biggest Issue: Currently this is the most annoying bug I am experiencing is that whenever I go to lock screen and security in the setting app, it crashes the settings app. I also can't use the search function in the settings app, as it crashes the app withing a few seconds. The lock screen and security is the only menu in which I experience this, I am 99% sure this is due to me turning on Secure startup. I had it turned on a few days after I got the phone and it worked great, I had to turn it off once, about a month ago in order to get a quicker boot. After that I was experiencing issues turning it back on (meaning I turned it on, rebooted the phone and it would not work) , after some persistence, I was able to get it to work and it has worked and still works.
One thing to mention is that I had done the most recent system update, I am not sure this issue was caused by at, since the inability so search in the setting menu has happened prior to the latest update.
I have tried everything other than a full factory reset (wiping all cache, wiping apps cache, reset setting, reset network settings), which I refuse to do, It is absolutely unacceptable for me to pay this much for this phone and have so many issues with it, I have factory resetted my phone (Samsung's recommendation) in order to fix the first issue listed above, multiple times and it did not work.
At this point I really don't know what to do, Samsung support has been useless in this, I don't wish to replace my phone right now as I need it to much to even give up for one day, If anyone has any advice/fix other than factory resetting, I'll happily try it.
Thank you,
GGgamer16
Sounds like a factory reset is needed. I just tried all you mentioned with zero problems on the newest update w/ navbar options and experienced none of that. Speaker problem is most likely hardware related.
Anyone had any luck getting rid of the wifi disconnect? The issue where wifi disconnects showing a ! next to the wifi symbol on the status bar?
*Hooligan* said:
Anyone had any luck getting rid of the wifi disconnect? The issue where wifi disconnects showing a ! next to the wifi symbol on the status bar?
Click to expand...
Click to collapse
You try changing your WiFi channel? Using 5ghz or 2.5ghz? I use Wifi 100% of the time I'm home and never have any issues with disconnects.
brandonc0526 said:
You try changing your WiFi channel? Using 5ghz or 2.5ghz? I use Wifi 100% of the time I'm home and never have any issues with disconnects.
Click to expand...
Click to collapse
Yeah I have tried changing channels. It didn't matter. I'm on 2.4 GHz.
I found a possible fix from another forum. I changed my wifi encryption from wpa2 AES/tkip to wpa2 tkip only last night and was rock solid after that point. I didn't have any more wifi issues... Just wanted to mention this change for other people. I usually got 5+disconnects every night. I'm gonna try just the AES option tonight and see how it acts.

Question Graphical glitches on A52s (Culprit found)

Update: Found the culprit! When the phone is on a 2G network, it happens always when there is any (voice or data) communication and glitches are stronger when the signal is weaker. It's probably caused by an interference and bad shielding of components. Similarly how 2G network makes buzzing sound in radio speakers, on A52s it makes a mess on the screen.
At least one user (bellow) solved it by RMA - sending the phone to service and getting back new/fixed one.
Update 2: Problem fixed. I sent the phone to service center with description how to replicate the issue (phone must be on 2G network, ideally low signal, data or voice transfer is happening). Got it back after 2 weeks. Report says they replaced the display and also battery for "construction" reason (as they described it) and issue seems to be solved!
To conclude: It is indeed hardware issue and is fixed by replacing the display. If this happens to you too, don't wait for software update or anything else, send it to a service for a fix covered by the warranty!
Since few weeks ago, maybe since last update a month ago (security update from 1st October 2021), I'm randomly getting graphical glitches on my A52s.
It usually happens when I wake my phone after few hours of screen off but today I also saw few flashes even when playing a (graphically not demanding) game.
There is colour noise flashing over parts of the screen. It is usually just few random quick couple of 1/100 sec flashes, sometimes it stays a second and it disappears and everything is okay after that.
I also saw noise not covering the screen but flashing instead of wallpaper... Like there's a corruption in graphical memory, driver or whatever.
It doesn't make a difference whether the phone is freshly rebooted or running a week or two.
Does anybody else have this issue?
Is my phone (the memory, screen cable or something else) dying or is ist just a bug in current system update? I don't experience any other instabilities or problems.
(I'd send my phone to RMA but since I didn't find any consistent way to replicate this, it would make just as much of a difference as locking my phone in a drawer for a month.)
I'm appending mock-up screen shots how some of the flashing glitches look.
Clear system cache, hard reboot.
Huh, I didn't really ask for help, but yeah, that's a good idea with clearing the cache.
I rebooted to recovery and wiped the cache partition.
(I also accidentally hard rebooted when trying different button combos to enter the recovery LOL, so I did both things. In the end I had to enter the recovery using "adb reboot recovery" command because none of the button combos I found worked for me.)
I'll report back in few days whether it solved the issue or not.
Your screen is dying. This is hardware issue
Easy fixes are a good thing...
EugenStanis said:
Your screen is dying. This is hardware issue
Click to expand...
Click to collapse
A possibility as is a mobo failure but no harm in trying a few simple fixes first.
Samsung has been having a lot of issues with their displays this year...
It doesn't really feel like screen itself is dying when glitches can appear under the home screen icons in wallpaper or in the application area with status and nav bars being untouched. But I guess it can be; I have no idea how the image on screen is being redrawn.
But it happens especially after phone display is off for longer period of time. The phone then is quite sluggish, presumably because the system paused or killed some apps and is waking them up. And glitches mainly appear then.
That would suggest to me either a system memory being corrupted or something weird happening in the cache, depending on where these apps go when they're paused/killed.
jenda.69 said:
It doesn't really feel like screen itself is dying when glitches can appear under the home screen icons in wallpaper or in the application area with status and nav bars being untouched. But I guess it can be; I have no idea how the image on screen is being redrawn.
But it happens especially after phone display is off for longer period of time. The phone then is quite sluggish, presumably because the system paused or killed some apps and is waking them up. And glitches mainly appear then.
That would to me suggest either a system memory being corrupted or something weird happening in the cache, depending on where these apps go when they're paused/killed.
Click to expand...
Click to collapse
Factory reset. Before loading apps confirm if ok.
Then be careful what 3rd party apps you load.
If the reset doesn't work, reflash it to a known good version.
If all that fails it's likely hardware.
The most likely cause is a 3rd party app given right to overlap other apps and this 3rd party app has crashed. Uninstall apps in opposite order of installing until problem is solved. Or factory reset.
I have the same problem, sent phone for repair.
In my case, the issue is occurring when phone is on 2g network. You could try going to network and set it to 2g only, check if it's happening, and then set it to 3g and see.
Cheers!
Bvid said:
I have the same problem, sent phone for repair.
In my case, the issue is occurring when phone is on 2g network. You could try going to network and set it to 2g only, check if it's happening, and then set it to 3g and see.
Cheers!
Click to expand...
Click to collapse
So is it a hardware issue or software?
abood.mhd said:
So is it a hardware issue or software?
Click to expand...
Click to collapse
It was a hardware issue, got a new phone.
Bvid said:
It was a hardware issue, got a new phone.
Click to expand...
Click to collapse
I have the same problem, and I can't replace the phone, the question is here, will this problem increase and affect the screen more?
Same problem here...but mostly when I am on 2G network (anyone please try and post results)...Thinking of sending phone to service...will see how it goes
Huh, I didn't get notifications for my thread, so I didn't know about all the replies!
I tested different things in last few weeks and I came to the same conclusion - that it only and always happens when my phone is on 2G network. If 2G signal is strong, it's occasional small glitchy line here and there. When the signal is really bad, it just messes up the whole screen - I had my phone ringing with screen being all just noise and mess. So I guess it's probably because of interference similarly how the 2G network connection makes buzzing sound in a radio speakers. Except here it makes a mess on the screen.
Now that I know how to reliably replicate the problem, I'll back the phone up and RMA it after christmas.
i have the same problem from the first day, it happens only in 2g signal ...and only if 2g signal is weak... i sent the phone to Samsung , they inform me that they know the problem and it will be fix ..on another update ...it s software problem they told....from this day i have take 3 updates and nothing happened....the phone still have the problem
Same here, took my a52s to a Samsung authorized repair center, after 3 repairs (the third one being the display change) it seems that the problem is solved. To me, it has nothing to do with software.
So, it's a hardware issue, I face the same problem for almost 2 months, and I don't know what to do
Only solution is to contact Samsung and have it fixed
VirtualGamer20 said:
Only solution is to contact Samsung and have it fixed
Click to expand...
Click to collapse
Its not that simple...Some people send phone for repair...twice and still not fixed

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