Develop Bugs

Cannot connect to camera

When I first start the camera app after a reboot I get the message "Cannot connect to camera". If I try to start the app again it works fine every time until the next reboot.
I've tried a factory reset which worked for a few reboots until the message started happening again.
I'm running the latest stock rom and can't figure out what's changing to cause this.
Any ideas?

Had you got that problem on earlier versions of stock ROM?
Sent from my R800i using xda premium

Sorry, I haven't had the phone long enough to have an older version of the stock rom.

Even I had this error once, I had to reboot the device to get that fixed.
This was the 1st time it happened.
One thing is it happened while shooting a 720p Video.

I don't think it's software problem, probably camera is damaged, or its flex cable. I had the same problem for a moment after disassembling my Play but I forgot to completely connect flex to the connector.
I think the only way to fix your problem is to bring Your Play to authorized service or (if your phone has warranty) send it to SE.
Sent from my R800i using xda premium

It could be but it just seems odd that its only the first time using the camera after a reboot. Try the app a second time and every other time its fine.
I would have though if it was the flex cable it would be all the time or happen randomly.

Well.
shadow wave said:
It could be but it just seems odd that its only the first time using the camera after a reboot. Try the app a second time and every other time its fine.
I would have though if it was the flex cable it would be all the time or happen randomly.
Click to expand...
Click to collapse
I'm having an issue like that right now. However, I started getting it after I messed with a ton of system files and the framework-res.apk
Did you do the same? I'm working on figuring out what went wrong, it's definitely a software issue for me.

Possible Problem and Solution
Hey guys,
I noticed something really curious after having an extensive conversation about a few r800's and a Moto Cliq XT about camera issues and I've isolated what might be the problem that people are unknowingly creating.
Status Bar Widgets
Having the LED/Flash/whateveryouwanttocallit light as a widget toggle in Android 2.3.x seems to use the same line of code as the camera. Or something techy like that. IDK. I was about to fix it after a ton of annoying work. But the easiest way (and fastest really) that I came across was just turning the widget off. Removing it completely. In fact, just get rid of that entire feature in 2.3.x and save it for like, IDK, 3.0+
Really hope this helps that random person out there who needs it.
-Fox

Fox Bailey said:
Hey guys,
I noticed something really curious after having an extensive conversation about a few r800's and a Moto Cliq XT about camera issues and I've isolated what might be the problem that people are unknowingly creating.
Status Bar Widgets
Having the LED/Flash/whateveryouwanttocallit light as a widget toggle in Android 2.3.x seems to use the same line of code as the camera. Or something techy like that. IDK. I was about to fix it after a ton of annoying work. But the easiest way (and fastest really) that I came across was just turning the widget off. Removing it completely. In fact, just get rid of that entire feature in 2.3.x and save it for like, IDK, 3.0+
Really hope this helps that random person out there who needs it.
-Fox
Click to expand...
Click to collapse
YES, i agree, should make a fix btw, =)

[Q] Screen does not turning off during a call

Hello everybody,
my girlfriend have an a Sony xperia s and for awhile when she having a phone call
and put the phone against her ear the screen does not turning off the buttons are been pressed
by her cheek, this causes a lot of embarrassment when the call is disconnected in the middle of an important call,
most of the time the button just pressed and the other side just hearing an annoying tone.
this is annoying and i don't know how to help her with that.
is there any good solution for this problem?
i tried to look for this problem in the search engine of this forum
and all i found was the same problem but in HTC phone that runs Windows Mobile, that didn't helping me...
thanks for anyone who can help me with that...

Try rebooting/resetting.
If problem persists then the proximity sensor may be faulty. Take it to Sony, coz it's a hardware problem.
Sent from my LT26i using xda app-developers app

bluechelsea said:
Try rebooting/resetting.
If problem persists then the proximity sensor may be faulty. Take it to Sony, coz it's a hardware problem.
Sent from my LT26i using xda app-developers app
Click to expand...
Click to collapse
Thank's i'll try it and come back with an answer if it works or not...
hope that is not an hardware issue..
update:
reboot didn't solve the problem

Did it work before?
Sent from my Xperia S using Tapatalk 2

Ben36 said:
Did it work before?
Sent from my Xperia S using Tapatalk 2
Click to expand...
Click to collapse
Yes it is worked before, i don't know what happened that caused this...

Whiplash83 said:
Yes it is worked before, i don't know what happened that caused this...
Click to expand...
Click to collapse
Perhaps her phone is dirty, so the sensor won't work.. You know women, they don't care about technology.
Clean the screen left next to the Sony logo real good

My first opinion is hardware issue. It can be said that the proximity sensor is faulty. My second one is software. maybe she install a program that uses or control the proxomity switch that causes it to malfunction having a conflict with other programs. My third is that, as early as possible if its hardware issue, go now to sony service center for them to figure it out, use your warranty card, that may cause no additional problem right? Smile!

You could try re flash the firmware with flashtool
Sent from my Xperia S using Tapatalk 2

ShabNador said:
Perhaps her phone is dirty, so the sensor won't work.. You know women, they don't care about technology.
Clean the screen left next to the Sony logo real good
Click to expand...
Click to collapse
she taking care of her phone more then anybody i know...
the phone is completely clean and safe, so most probably is it's something else.
Jugen27 said:
My first opinion is hardware issue. It can be said that the proximity sensor is faulty. My second one is software. maybe she install a program that uses or control the proxomity switch that causes it to malfunction having a conflict with other programs. My third is that, as early as possible if its hardware issue, go now to sony service center for them to figure it out, use your warranty card, that may cause no additional problem right? Smile!
Click to expand...
Click to collapse
i think that maybe it is an hardware issue,
she don't installing any application just by her self, and she don't have many apps.
i know almost every app on her phone (cause i have them also on my SGS4) and i don't think that the apps are the problem.
but i will look for an app problem anyway just to be sure before using the warranty.
thank you guys...
UPDATE:
i've checked the phone sensor with the new app cpu-z and the app shows that the sensor is working and identifying my hand
when i covering it.
but still there is the problem that the screen does not turn off when she's holding the phone against her ear,
i've watched while she's talking in the phone and she's holding it as it should be.
but as i see the problem is not happening in every phone call but it is happening a lot.
any idea how to solve this problem?

[Q] Server error occurred. Restart Camera.

The video camera function on my camera is no longer working and I’m not sure why. This phone is less than 5 weeks old and I have already taken videos with it. This upsets me because I have a 4 month old that I love to record especially when it comes to his firsts. The led flash light comes on when I push the video button, the screen switches and freezes. The message saying error prompts and when I close the camera, the led light will remain on until I reopen the camera. Hopefully you can help me figure this out, many thanks!

jacqueline robert said:
The video camera function on my camera is no longer working and I’m not sure why. This phone is less than 5 weeks old and I have already taken videos with it. This upsets me because I have a 4 month old that I love to record especially when it comes to his firsts. The led flash light comes on when I push the video button, the screen switches and freezes. The message saying error prompts and when I close the camera, the led light will remain on until I reopen the camera. Hopefully you can help me figure this out, many thanks!
Click to expand...
Click to collapse
Just a guess.. but you did in another posting say...
jacqueline robert said:
I install S5 Video App but it does not work properly in my note3. Can I use it in my device?
Click to expand...
Click to collapse
Which indicates you have been making changes to your phone related to video. Did you remove that or are you still using it.
Without knowing what your phone condition is in, it is very possible that other changes you have made is causing the problem as well...
Like...
jacqueline robert said:
Thanks For your Great Tutorial. It really helps me to update my Modem.
Click to expand...
Click to collapse
jacqueline robert said:
I think gravity box is better than other.
Click to expand...
Click to collapse
Most don't need to update their modem and if you installed software that modifies how your phone works, you might try turning them off or uninstalling them to see if they are the cause of your problems.

jacqueline robert said:
The video camera function on my camera is no longer working and I’m not sure why. This phone is less than 5 weeks old and I have already taken videos with it. This upsets me because I have a 4 month old that I love to record especially when it comes to his firsts. The led flash light comes on when I push the video button, the screen switches and freezes. The message saying error prompts and when I close the camera, the led light will remain on until I reopen the camera. Hopefully you can help me figure this out, many thanks!
Click to expand...
Click to collapse
ive also experiencing this SERVER ERROR OCCURED. RESTART CAMERA.. do you find a solution or did you fix it??? thnks..

Server error occurred. Restart Camera.
Same error on Galaxy A5.
Android 4.4.4
Tried: force stop, clean cache, clear data - problem repeatet!
Any help?

jacqueline robert said:
The video camera function on my camera is no longer working and I’m not sure why. This phone is less than 5 weeks old and I have already taken videos with it. This upsets me because I have a 4 month old that I love to record especially when it comes to his firsts. The led flash light comes on when I push the video button, the screen switches and freezes. The message saying error prompts and when I close the camera, the led light will remain on until I reopen the camera. Hopefully you can help me figure this out, many thanks!
Click to expand...
Click to collapse
u could try booting in safe mode and test if theres any app or tweak that is causing it. or u could enter Service / Test / Hidden functions by dialing *#0*# on your phone dialer and u gonna get to the service mode and check camera itself. also theres another one of those USSD codes that brings u to check the phone gadgets hardware /firmware version to see if it same as the camera app... u could also do a full factory restore from recovery screen if nothing else works remember to do a backup first @ titanium backup.. or if you have fair tech skills u could remove the back cover and remove the battery plate and check if tje battery connectors are in place im sure u could find a note 3 tear down video around.. i had the same problem but with the frontal camera and ended up been the camera was defective and replaced it and worked like charm

I know this thread is kinda old, but since it is on the first page on google's query, I'll post a solution here (found on another site).
The solution is to turn off the phone and remove battery for 10-20 seconds. This should resolve the issue.
Some users report that the issue occurs when you charge your phone via PC or laptop USB port. So, to avoid this, prefer original charger.

thanks
thank you for replying even if the post is old! it simply worked while i was about to sell my phone ! good thing i saw your reply first!

Did you ever find a fix?

Camera not detected at all

So issue started as follows:
a. For a few days, I've noticed that camera will give very blurry photos and videos. I tried a few things (including cleaning laser/camera lens with a cloth), but it wouldn't work.
b. Decided to restart phone today and see if that helps (turn off and on right?)
c. I now get error "Unable to start the camera" when I tap on the camera app.
I have tried the following:
a. install 3rd party app - won't work
b. restart phone (multiple times) - won't work
c. clear data/clear cache, disable, enable, remove permissions and allow permissions for Camera app - won't work
d. reboot phone in safe mode - won't work
e. Go into diagnostic mode using #*#*3434*#*# to test camera. Guess what, there are no options to test camera!
f. Go into diagnostic mode and test flashlight. Flashlight won't turn on anymore. Also, I found that the system's flashlight app is gone.
All this leads me to believe that for some reason the phone is not detecting the camera hardware anymore. I'm out of ideas. I bought the phone overseas, and local HTC told me to return it overseas or pay a handling fee of $100 and they'll look at it, but will probably not be able to do anything anyway.
Phone is just a bit over 1 month old.
Any ideas?

I'm having the same problem. I'm rooted on unlocked HTC 10 on stock 2.41.617.3. I'm S-On. I've tried force stop and delete cache and data. Tried safe mode and tried a 3rd party camera app. I just got by phone back from HTC to repair the camera and it worked before flashing the January security update and rooting it. Afterwards, I now get "unable to start the camera"
Sent from my Galaxy S4 using XDA Labs

NickKG81 said:
I'm having the same problem. I'm rooted on unlocked HTC 10 on stock 2.41.617.3. I'm S-On. I've tried force stop and delete cache and data. Tried safe mode and tried a 3rd party camera app. I just got by phone back from HTC to repair the camera and it worked before flashing the January security update and rooting it. Afterwards, I now get "unable to start the camera"
Sent from my Galaxy S4 using XDA Labs
Click to expand...
Click to collapse
So, I completely wiped data and reset factory settings, but camera still wouldn't start.
Flashed phone back to Taiwanese version, and it's now working, but original issues are back, i.e. blurry camera that can't focus on anything. I restarted phone a few times to see if it would go back to "unable to start the camera", but it's still working, just blurry and unable to focus. I'm still going through the various updates now. Have notification for Nougat. will try that and test camera again.
[UPDATE]
Interesting update: So, I upgraded to Nougat just now, and after restarting, I tested camera, it's not working anymore. Here's my speculation: 1) camera module (hardware) is broken/fkd up/stuffed, but only partly? Whereas Android 6 will let it work, but blurry and no focus, Android 7 just won't let it work at all. That's just my theory that makes a little sense atm. Anyone else?

I think you are correct, i would send it for warranty (if you still have that)
Good luck !

I did a hard reset and the camera started working again.
Sent from my Galaxy S4 using XDA Labs

Mr Hofs said:
I think you are correct, i would send it for warranty (if you still have that)
Good luck !
Click to expand...
Click to collapse
Got mine overseas about a month ago, posting it on Monday.
NickKG81 said:
I did a hard reset and the camera started working again.
Sent from my Galaxy S4 using XDA Labs
Click to expand...
Click to collapse
Lucky! Is yours ANY blurry or is it fully functional? Also, if it stops working again, check whether your flashlight works (mine wouldn't/isn't).

ameel said:
Got mine overseas about a month ago, posting it on Monday.
Lucky! Is yours ANY blurry or is it fully functional? Also, if it stops working again, check whether your flashlight works (mine wouldn't/isn't).
Click to expand...
Click to collapse
It was blurry when I purchased it used. That's why I sent it back to HTC since it was under warranty. It looked like it was a bad auto focus module, although HTC never said so. Fixed and was working well, then today (after the reset I posted about), then today it stopped working. I'm going to RUU tonightor tomorrowand install apps one by one. It seems to be softwa rerelated.
Sent from my Galaxy S4 using XDA Labs

NickKG81 said:
It was blurry when I purchased it used. That's why I sent it back to HTC since it was under warranty. It looked like it was a bad auto focus module, although HTC never said so. Fixed and was working well, then today (after the reset I posted about), then today it stopped working. I'm going to RUU tonightor tomorrowand install apps one by one. It seems to be softwa rerelated.
Sent from my Galaxy S4 using XDA Labs
Click to expand...
Click to collapse
I'm sure it will work if you go to android 6, but it will be blurry. It won't work after you restart in android 7. That's my experience

My wife's 10 was having this issue. Neither a factory reset nor an RUU helped. But randomly it just started working for her. There were app updates from Google for photos and chrome but I have no idea if they're related but nothing else changed. Really strange!
Edit: a day later the camera is not working again.
Sent from my HTC 10 using Tapatalk

I've been experiencing the very same problem and the only thing that helps is hard reset or RUU. It doesn't always work on the first try, but after 3-4 attempts the camera starts working perfectly for a period of time -- sometimes a week, sometimes a month and a half (my personal record, which was set a few days ago, when camera died again). Then I always have one day of the focus getting disabled followed by a complete shutdown with all the symptoms described by OP (no flashlight icon, 'unable to start' message). Has anyone found a permanent solution to this problem?

I have the same problem with my htc

I have the same problem on a non-rooted Verizon HTC 10... the camera app won't open, the flashlight won't work, the camera shortcuts disappeared from the top Nougat menu, and any other app I try says it can't find the camera.
I'm unable to find any troubleshooting or debugging methods yet... any suggestions? I have Android Studio but I haven't learned much of it, I'm wondering if Developer mode or the Studio USB debugging can help...

dhinged said:
I have the same problem on a non-rooted Verizon HTC 10... the camera app won't open, the flashlight won't work, the camera shortcuts disappeared from the top Nougat menu, and any other app I try says it can't find the camera.
I'm unable to find any troubleshooting or debugging methods yet... any suggestions? I have Android Studio but I haven't learned much of it, I'm wondering if Developer mode or the Studio USB debugging can help...
Click to expand...
Click to collapse
A few things that seem to have helped some people are:
removing SD card and restarting the phone without it;
clearing camera app's cache;
uninstalling all 3rd party apps that might be interfering with the camera;
RUU-ing the phone with an official firmware (you don't need root or S-OFF for that, as long as you don't try to downgrade from Nougat to Marshmallow).
Nothing but the last method worked for me. Though it doesn't do the trick every time and even when it does, it is only a temporary solution, as the problem keeps popping up again after a while. Last time the camera in my HTC 10 started working without any software interference from my side: I went on a hike in cold weather and, as I hypothesise, something about it (temperature differential? pressure change?) restored camera functionality for a couple of weeks, after which it died again. This incident led me to believe that this is a hardware problem and the camera module simply isn't securely connected to the motherboard in our phones or something. My wild guess is that RUUing might sometimes help simply because of the heat rewriting firmware produces.

werbliben said:
A few things that seem to have helped some people are:
removing SD card and restarting the phone without it;
clearing camera app's cache;
uninstalling all 3rd party apps that might be interfering with the camera;
RUU-ing the phone with an official firmware (you don't need root or S-OFF for that, as long as you don't try to downgrade from Nougat to Marshmallow).
Nothing but the last method worked for me. Though it doesn't do the trick every time and even when it does, it is only a temporary solution, as the problem keeps popping up again after a while. Last time the camera in my HTC 10 started working without any software interference from my side: I went on a hike in cold weather and, as I hypothesise, something about it (temperature differential? pressure change?) restored camera functionality for a couple of weeks, after which it died again. This incident led me to believe that this is a hardware problem and the camera module simply isn't securely connected to the motherboard in our phones or something. My wild guess is that RUUing might sometimes help simply because of the heat rewriting firmware produces.
Click to expand...
Click to collapse
Oh *smack* sorry I forgot to mention that I already tried clearing the camera app's cache, wiping cache from recovery menu, and factory resetting the phone.
I think it's a hardware issue since I think it got a little wet from sprinklers and I read the phone isn't water resistant, and also that the camera module is flaky anyways... Verizon accidentally cancelled my insurance without telling me and I haven't seen yet that HTC covers it on warranty.
I'll try these other things you suggest, but do you think it would be worth trying to have HTC repair it? It'll be worth it for $350 or less, or I could try a local shop, though I think they'd just do the same thing I would (research it on Google, buy the necessary repair parts, then painstakingly fix it), but I've seen in repair videos that this phone is very fragile and difficult to work with, so I'm not sure all that time and effort would even be worth just buying a new version outright, and I'd like the phone to work for the eclipse!.

Same Problem here, since Saturday... [emoji85]

dhinged said:
I'll try these other things you suggest, but do you think it would be worth trying to have HTC repair it? It'll be worth it for $350 or less, or I could try a local shop, though I think they'd just do the same thing I would (research it on Google, buy the necessary repair parts, then painstakingly fix it), but I've seen in repair videos that this phone is very fragile and difficult to work with, so I'm not sure all that time and effort would even be worth just buying a new version outright, and I'd like the phone to work for the eclipse!.
Click to expand...
Click to collapse
I actually went to a repair shop about a month ago and was told that they were certain part replacement would leave significant marks on the metal body =/ If you carry the phone in a full case, I guess this should not be a big problem. AFAIK, an official HTC repair shop would just replace the phone under warranty in cases like this due to how low simplicity of disassembly was on designers' priority list when 10 was being sketched out, but you're saying Verizon canceled your warranty?

I also face this unable to start camera.
My software no is 2.51.617.11
I live in Myanmar (Burma). No one know this problem including HTC Myanmar.

Apparently there are a handful of us who have faulty cameras. Haven't heard anything from HTC. I have tried everything listed here and more. No luck. The only way my camera works is on older firmware (1.9.xxx.xx) and running Marshmallow.

well my htc 10 started playing up today, camera wont start when you touch the camera app on the screen..ive had this phone for 9 months , my warranty expires in march 2019, ive tried all the above methods none worked, phoned HTC uk up and they said to send it in..i hope they replace it with another unit ?..if they do replace it with another unit will the wrranty be transferred over to that, ie expire in march 2019? i also noticed that the flashlight app doesnt work it just says on screen "loading"..

I have the exact same problem, tried all the suggestions, but still it says 'Unable to start camera'. I even opened up the phone, and replaced the camera with another HTC 10 which had water damage. Problem still exists, which leads me to believe that the camera isn't the issue, it might be the mainboard it's connected to in combination with Nougat? The other case can be that the broken phone I got the camera from might have the same problem.... allthough I think that's unlikely. I'd like to order another camera to make sure its not that, but can't really find one. Anyone got any further with this issue?

Front Cam Not Working

For a few months ago, my M30's front camera doesn't work. Sometimes the rear camera works but when I switch to front, the app freezes and then I've got to close it. I tested front camera by dialling *#0*# but it says FAILED!!
Any solution anyone?

Azamsm said:
For a few months ago, my M30's front camera doesn't work. Sometimes the rear camera works but when I switch to front, the app freezes and then I've got to close it. I tested front camera by dialling *#0*# but it says FAILED!!
Any solution anyone?
Click to expand...
Click to collapse
Did it ever fall? Is the upper part of the phone broke3n or anything. This data line error is new to me.

Front camera not working
Same problem i am also facing since android 10 update. Tried flashing stock rom couple of times but didn't helped. Many users facing same problem after android 10 update. After factory reset sometime it is working for a first use and then again same problem. Currently My phone is on TWRP and on Turbo Rom.. by anyway i can change the camera version?

Vipul_dhari said:
Same problem i am also facing since android 10 update. Tried flashing stock rom couple of times but didn't helped. Many users facing same problem after android 10 update. After factory reset sometime it is working for a first use and then again same problem. Currently My phone is on TWRP and on Turbo Rom.. by anyway i can change the camera version?
Click to expand...
Click to collapse
I checked just now, it works fine. I tried various angles. Everything works fine. As I asked, it may be due to some hardware trouble or something triggering it.

vdbhb59 said:
I checked just now, it works fine. I tried various angles. Everything works fine. As I asked, it may be due to some hardware trouble or something triggering it.
Click to expand...
Click to collapse
I read on Samsung Community that a user with the same camera error had to go to service center and had the motherboard changed. I believe it IS a hardware issue

Azamsm said:
I read on Samsung Community that a user with the same camera error had to go to service center and had the motherboard changed. I believe it IS a hardware issue
Click to expand...
Click to collapse
Yup, does sound like hardware issue. Just FYI, Samsung current charges are exorbitant, and they in some countries FORMAT whole data even for smallest of things, irrespective of hardware or software issues (f***ing idiots). So, please beware of the 2 points.