[Q] Is camera supposed to fire flash while focusing? - G2 Q&A, Help & Troubleshooting

Just got an international G2. Quite surprised to find the camera flash doesn't fire when focusing, only when the picture is taken.
Is this normal?
I'm rooted, stock rom and kernel, only changes are some G2 Xposed settings and fast dormancy disabled in service menu (if it helps to know that)...
Anyone got any info or suggestions? Cheers.

El_JimBob said:
Just got an international G2. Quite surprised to find the camera flash doesn't fire when focusing, only when the picture is taken.
Is this normal?
I'm rooted, stock rom and kernel, only changes are some G2 Xposed settings and fast dormancy disabled in service menu (if it helps to know that)...
Anyone got any info or suggestions? Cheers.
Click to expand...
Click to collapse
Mine doesn't fire when tapping on the screen to focus (do any smartphone cameras do this? None that I've used do), but it fires after I press the shutter button, and refocuses itself based on that and then gets brighter to actually take the photo.

My D802 doesn't do it, at least on aosp. But my sgs3 on aosp did.
Sent from my LG D802

Thanks for the help guys, I guess that clears that up. I've come from a Nexus 4, which does flash while focusing, so I guess my natural instinct was to assume it wasn't working properly. Cheers

Related

Camera testing

While checking the camera I noticed a few symptoms:
[-](Taking photos at night/low light): with/without flash sometimes the photo saved with 1pixel white line (sometimes 2 pixels), the line is random and change to each photo - at the top starting left / left starting buttom (depend on which way you take the picture), here is a sample of picture with this line (circled) at the buttom.
I've found it happens sometimes while taking picture in low light/dark/night, have no idea why is that and what the reason of this.
[-]Another thing while taking picture at low light/dark background with flash: dosn't matter how you focus (auto focus/manual-touching the screen/long press on the button) seems like you should take a few photos of the same image to get a 'satisfactory' picture - I took few pictures on the same place and got some too 'flashy' photo, some too darky (seems like the flash was too fast) and some was what I've expected (OK), at the dark pictures seems the +2 exposure didn't help (didn't notice any difference between 0 to +2, but there is a difference between -2 to 0) -> seems you getting different photos on same shot image and must take few shots to get what you expect to get.
[-]The picture that seems to save after taking a shot sometimes looks different then what its realy saved, for example you taking a picture with flash - its looks like its saving a too lighty/flashy-full flash picture but when you open the gallery you see the picture is fine.
[-]HDR mode: sometimes when its getting focus (manualy or automatically) its not possible to change the focus and any attemp to manual focus (while touching on places on the screen) is do nothing and seems its stuck on the last focus.
[-]Video: sometimes seems its stuck on focus - after focusing on macro/closer image and taking time (if so) to release the focus to infinity, if it dosn't release the only way to fix it is to renter the camera app and record video again.
[-]At day light / regular conditions - great and sharp photos but seems its more grainy then other cameras, especially photos with sky (the sky).
Overall its a great camera, all the above are not something that should disturb someone, I didn't forgot its 'just' a smartphone camera, you can always get better results using 'SnapSeed' app
Does anyone else notice these (or some of these) symptoms and have any knowledge how to get it better or solutions or maybe insights about these symptoms? (the using of camera) would like to get some information...
Anyway - do you recommand other Camera applications? I tried Focal - seems its still have a lil bugs, FV-5 (on my S2) ...
Thanks!
Today I've notice a bug [seems like a real one this time]:
When took a photos: low light + flash (macro focus if its matter), while I took few pictures one after another the camera app got stuck and reboot the device.
I've tried it without flash and didn't got reboot, then its happens again while I've checked at the same condition (low light and flash on).
Also notice that none of these photos (that freeze the app and reboot my device) are saved correctly seems like its 'break' pictures that didn't saved well...
Anyway after I manualy reboot the device and tried it again it wasn't crash/freeze/reboot device.
Just mention that I'm using the stock camera app at stock rom 4.2.2 without root or anything...also my device was on for few days (without any reboot).
Does anyone have any idea about this bug or other symptoms that I had mention at the 1st post?
PsyOr said:
Today I've notice a bug [seems like a real one this time]:
When took a photos: low light + flash (macro focus if its matter), while I took few pictures one after another the camera app got stuck and reboot the device.
I've tried it without flash and didn't got reboot, then its happens again while I've checked at the same condition (low light and flash on).
Also notice that none of these photos (that freeze the app and reboot my device) are saved correctly seems like its 'break' pictures that didn't saved well...
Anyway after I manualy reboot the device and tried it again it wasn't crash/freeze/reboot device.
Just mention that I'm using the stock camera app at stock rom 4.2.2 without root or anything...also my device was on for few days (without any reboot).
Does anyone have any idea about this bug or other symptoms that I had mention at the 1st post?
Click to expand...
Click to collapse
I have the same problem as you are describing. I have reproduce it on stock 4.3, cm 10.1.3 and cm 10.2.
I just reproduced it after I took like 100 photos. The Phone just rebooted after a short hang.
Maybe this is a hardware fault on some devices. When did you bought your Phone? Mine is the white one just a week old. Rev 11. If that says something.
Sent from my GT-I9505 using xda app-developers app
berg82 said:
I have the same problem as you are describing. I have reproduce it on stock 4.3, cm 10.1.3 and cm 10.2.
I just reproduced it after I took like 100 photos. The Phone just rebooted after a short hang.
Maybe this is a hardware fault on some devices. When did you bought your Phone? Mine is the white one just a week old. Rev 11. If that says something.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
Seems like the flash heat the cpu or something like that...happened again today (without purpose) after few focus with flash few photos with flas..at regular photo without flash (straight after) it got stuck and reboot the device.
Then I tried to get it again but now with Camera360 app, lots of focus flash,photos with flash,without....seems works fine.
Maybe a stock app problem, guess anyway its the flash (another guy got reboot after using flashlight app).
There is any app that I could determine the CPU temperature even after reboot/turn off (like GSAM graph or the built in Battery graph that show all day and not only when you turn on /reboot device and start a new one every time)?
Btw - the device is only month old (from play uk), my serial# start with 304k, whats yours?
Yesterday night I had this again, only 2 photos with flash, take a look at the gallery and got freeze then reboot.
The device was cold [also wifi was off this time, I didnt tought its something to do with it anyway just mention] so nothing about hot cpu...
It might be something with the stock app and/or stock gallery app [maybe the swipping thing from camera to gallery and vice versa], as I tried again camera360 with lots of flash, focus flash and lots of photos and seems it was fine.
Very weird.
What camera app do you guys recommands?
I think it's an issue with the AOSP camera app. My rev. 10 211k Nexus 4 does this sometimes when taking a picture with flash on. It hasn't done it with a flashlight app ever though. I haven't encountered this issue with Focal, but I don't like Focal much.
Sent from my Nexus 4 using xda app-developers app
lopezk38 said:
I think it's an issue with the AOSP camera app. My rev. 10 211k Nexus 4 does this sometimes when taking a picture with flash on. It hasn't done it with a flashlight app ever though. I haven't encountered this issue with Focal, but I don't like Focal much.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Yeah, seems like its something with the stock camera app... I really like the stock one, Focal is almost the same with some more options but it isn't stable yet.
I found camera360 doing great job but I like the stock-clean design more...
Anyway I hope the new KitKat version will fix it.
BTW - any reason/idea about the first symptom that i've mentioned in the first post? [the white 1pixel line], and about the stuck focus on HDR mode?
berg82 said:
I have the same problem as you are describing. I have reproduce it on stock 4.3, cm 10.1.3 and cm 10.2.
I just reproduced it after I took like 100 photos. The Phone just rebooted after a short hang.
Maybe this is a hardware fault on some devices. When did you bought your Phone? Mine is the white one just a week old. Rev 11. If that says something.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I've got a rev 11 White too, I've got a strange Issue, if I take a photo with the stock rom with flash on with and without touch to focus everything seems to be right; If I take a photo with a CM based ROM without touch to focus I obtain an almost black picture, could it be an hardware issue?
And one kiddish doubt , why we can't take 16:9 pics ? Any idea ? Or it is possible and am I missing something ?
Sent from my Nexus 4 using XDA Premium 4 mobile app
VinciusG said:
I've got a rev 11 White too, I've got a strange Issue, if I take a photo with the stock rom with flash on with and without touch to focus everything seems to be right; If I take a photo with a CM based ROM without touch to focus I obtain an almost black picture, could it be an hardware issue?
Click to expand...
Click to collapse
I've notice it too, also with stock, I mentioned it as well - seems like we need to take few photos of the same thing to get and chooce the better result, I've found it sometimes the flash is too fast and its taking the photo just before the led turn off or before its turn on fully... something like that. but its on flash photos most of the time.
Try taking 10 shots of the same thing, you could notice a difference between some of the pictures. (BTW I think its happens with and without touch focus; it dosn't matter)
jithuelad said:
And one kiddish doubt , why we can't take 16:9 pics ? Any idea ? Or it is possible and am I missing something ?
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I guess some other camera app (3rd party) would have this option... anyway I'm still waiting for any recommand about a good camera application...

[Q] Extremely poor quality of camera when video chatting

I got an att lg g2 a few days ago with stocked firmware 80010d. Everything worked very well. I then flashed my cell to att 4.4.2 kitkat (80020c) with lg flash tool. The updating process should be successful because I strictly followed a video tutorial and everything is expected.
After flashing I realized that the picture quality of both front and back camera are very poor in some video chatting software (I used Wechat and Hangout). How poor it is? Most of the time my picture is totally black unless you put a light source in front of the camera (both front and back camera are experiencing the same thing). It seems the brightness level of the camera is set to its lowest value so everything is dark, and there is no way to adjust it in the video chatting software. (I do try to set the ISO and brightness to maximum level in camera app, but nothing is changed). Attachments show screen captures in Hangout with or without a light source in it.
Occasionally (it happened once when I had the phone fully charged), the brightness level is good, but the picture quality is extremely low. It seems the camera resolution is only 0.1MP instead of 2MP.
The camera itself works very well taking pictures or videos. It is only bad in video chatting. I searched hard on google but it seems my case is very rare. Is there some settings or adjustments I can do to fix this problem? I know my question is too long, Thank you for any advice.
Guess this is really rare. I will roll back to 10d and see what happens.
My wife's new LG G2 is doing the same thing and she is on stock kit Kat uprooted, came f e on AT&T on 10C, I'm using ClodyPro II on mine and mine works fine. Her problem is exactly like yours
Sent from my LG-D800 using Tapatalk
pennelyx said:
Guess this is really rare. I will roll back to 10d and see what happens.
Click to expand...
Click to collapse
So found a fix, just did it for my wife's G2 which as I said has the same issue, or had. I used the Flashtool to taker her back to 10d then I rooted, installed recovery, updated recovery, and flashed the 10d to 10c keep root and recovery in the AT&T G2 Dev Section, after I backed up first and preformed the install I immediately did a factory reset to wipe data, cache, and dalvik before I rebooted from recovery. Once it was set up, I tried hangouts and the camera looked just like mine, great!! Thought I'd share
Sent from my LG-D800 using Tapatalk
pennelyx said:
I got an att lg g2 a few days ago with stocked firmware 80010d. Everything worked very well. I then flashed my cell to att 4.4.2 kitkat (80020c) with lg flash tool. The updating process should be successful because I strictly followed a video tutorial and everything is expected.
After flashing I realized that the picture quality of both front and back camera are very poor in some video chatting software (I used Wechat and Hangout). How poor it is? Most of the time my picture is totally black unless you put a light source in front of the camera (both front and back camera are experiencing the same thing). It seems the brightness level of the camera is set to its lowest value so everything is dark, and there is no way to adjust it in the video chatting software. (I do try to set the ISO and brightness to maximum level in camera app, but nothing is changed). Attachments show screen captures in Hangout with or without a light source in it.
Occasionally (it happened once when I had the phone fully charged), the brightness level is good, but the picture quality is extremely low. It seems the camera resolution is only 0.1MP instead of 2MP.
The camera itself works very well taking pictures or videos. It is only bad in video chatting. I searched hard on google but it seems my case is very rare. Is there some settings or adjustments I can do to fix this problem? I know my question is too long, Thank you for any advice.
Click to expand...
Click to collapse
Exact same problem here after update to kitkat. Video call in Hangouts app is bad but Skype works fine for me.
Sent from my Nexus 4 using Tapatalk
i have same problem, after updating to 4.4.2, using stock no root, please tell me what to do, its killing me i use video calling allot
Any fix?
Same here, I'm using WeChat and Hangouts video chat which produces black/darker front video.
I'm on stock 4.4.2 rooted. I haven't flashed any roms since day one. Any fix for this?
lg g2 issue in wechat after kitkat update
Even i'm experiencing the same **** in with my g2 after kikat ota update..... pls anyone have a solution
I am also having the same issue. I use wechat and stock kitkat not rooted. I think it's happening to a lot of us, so it isn't rare. Is there a solution yet? If not, can we get together and maybe report it.
Thanks.
arjjra said:
I am also having the same issue. I use wechat and stock kitkat not rooted. I think it's happening to a lot of us, so it isn't rare. Is there a solution yet? If not, can we get together and maybe report it.
Thanks.
Click to expand...
Click to collapse
Did one of you already found a solution?
I just got a brand new G2 and the front camera is really bad when using video chat.
Using stock 4.4.2
My old htc phone was much better.
Same problem... sh*t AT&T......

G2 camera doesnt focus

I'm currently on stock zvc rooted with twrp from autorec. I have been using Jishnu's 4k cam mod for a while now and its worked perfectly fine but all of a sudden my camera lost the ability to focus. It did this a couple days ago and I tried restoring camera from Jishnu's camupdate apk and then reinstalling and also installed xdabbeb's 4k cam and it wasn't working but after 15 mins or so I went back to the camera and it was working again. This time though I tried to do what I did before but it doesnt have any effect on it. I no longer have the stock camera files does anyone have them so I can try that out? A flashable zip would be even better if possible. Other then that does anyone have any idea what I could do besides tot'ing back which I'd rather avoid if possible?
Did you try another camera app to make sure it's not a hardware issue?
If I helped you, please thank me
got a stock non rooted d803 and camera just wont focus as well
takes nice close up pics but anything further than 2 inches and its out (even manual focusing doesnt work)
tried other camera apps and no joy, went as far as factory reset and nothing
LG and phone company tech advised bringing it in for replacement
AnteusFogg said:
Did you try another camera app to make sure it's not a hardware issue?
If I helped you, please thank me
Click to expand...
Click to collapse
Sorry for the late reply didn't notice I got two replies but I had tried google camera and another random camera before
and they both wouldn't focus at all. However my camera is working now I went and tot'd to stock 4.4.2 but the camera
wasn't working immediately after doing that it still wasn't working so I was afraid maybe the hardware was broken. But
after installing the 4k camera mod and doing some messing around with the camera and then leaving the phone alone
for a while with the camera app running in the background it works again. Its very weird I don't really understand it what
threw me off as well was after running titanium backup to restore apps/data the camera was still working so I started
setting stuff up. I noticed the xposed installer was not up to date so I went and updated it and then rebooted the phone.
After that I checked the camera and it wasn't focusing again at all. I figured xposed might be the culprit so I went and
uninstalled it then rebooted but it didn't have any effect the cam still wouldn't focus. So I reinstalled and enabled it and
did the installing 4k mod messing with camera and leaving it alone routine and after a while the camera is working
again. Very suspicious I'm at a loss but I went and did a nandroid backup while the camera was working so if anything
I can restore that and hopefully fix it.
dredd2099 said:
got a stock non rooted d803 and camera just wont focus as well
takes nice close up pics but anything further than 2 inches and its out (even manual focusing doesnt work)
tried other camera apps and no joy, went as far as factory reset and nothing
LG and phone company tech advised bringing it in for replacement
Click to expand...
Click to collapse
Try my 4k camera method I mentioned if you have questions let me know but quote my post so I can know that you replied.
OfficialPerson said:
Try my 4k camera method I mentioned if you have questions let me know but quote my post so I can know that you replied.
Click to expand...
Click to collapse
I have exactly the same problem and I installed your 4k camera but its still doesnt work.
I tried also factory reset and installed the latest stock rom and it also doesnt help.
please help me, I'm in despair.
crmadrid said:
I have exactly the same problem and I installed your 4k camera but its still doesnt work.
I tried also factory reset and installed the latest stock rom and it also doesnt help.
please help me, I'm in despair.
Click to expand...
Click to collapse
Sorry for the late reply but my camera still isn't working properly. Whenever I open a camera app its all blurry and it won't
focus what I have to do everytime I need to take a picture of something is shake the phone around in different angles and
sometimes hit it near the camera region lol. I find that after giving it a good shake/hit it'll start focusing again. I don't know if
that means theres a problem with the OIS interfering in some way since the lens can move around and stuff so maybe shaking
it makes it focus correctly but its annoying.
I would go bring the phone in for repair/replacement if you're covered. I would do it myself but I plan on getting the G3 soon
anyway so don't really need to fix this one. Hope it works out for you though.

[Q] Galaxy Note 3 Camera Problem

So I bought a used Galaxy Note 3 and am having a massive issue with the camera.
I've rooted this device and have tried every rom in the book
Everything else works 100% however when I try to start the camera app:
1) The camera UI displays but the viewfinder is black.
2) The controls either don't respond at all, or the controls just light up and do nothing.
Any ideas how to remedy this?
Really? 62 views and not a single idea what's happening??
shorteh said:
Really? 62 views and not a single idea what's happening??
Click to expand...
Click to collapse
well you don't say which model you have for a start?
have you flashed back to stock to see if it has probs still?
I have the N900W8 model.
I've restored it to stock 4.4.2 and still nothing.
When I use *#0*# and try the camera tests they both just crash the device.
shorteh said:
I have the N900W8 model.
I've restored it to stock 4.4.2 and still nothing.
When I use *#0*# and try the camera tests they both just crash the device.
Click to expand...
Click to collapse
don't sound good
how did you flash back to 442?
MystaMagoo said:
don't sound good
how did you flash back to 442?
Click to expand...
Click to collapse
I just used Odin.
shorteh said:
I just used Odin.
Click to expand...
Click to collapse
then essentially it should have propper camera drivers.
I suppose it's knox is tripped?
Should not really matter legally in europe if still in warranty period.
did it just suddenly stop?
does it take pictures?
I bought this second hand.
That being said since I've had it, the camera hasn't worked.
Have you ever tried a third party camera app from the play store?
kwayteow said:
Have you ever tried a third party camera app from the play store?
Click to expand...
Click to collapse
Yep I've tried several.
I should note after restoring 4.4.2 Knox is at 0x0
So managed to get the camera working by taking the phone apart and reseating the camera module.
Now my issue is the camera won't focus properly... lol!
sounds like a hardware issue then ?
Seems that way.
Looks like it is a software issue.
Moved the camera module from my Note 3 into another note 3 and works just fine.
Has something to do with software or the board.
Might help you pin down the cause, or not:
Mine does this after I use a flashlight app for a while (i.e. 2-3 hours.) At some point, the flash LED turns off and won't light up again until I reboot the phone. At this point, all the camera apps (I have 6) do exactly what you experience.
Maybe try a flashlight app, turn it on, off and then try the camera?

LG G6 (Sprint LS993) discards photo if you switch to another app too soon

Hi all,
Is it a known bug or problem with LG G6 running Oreo, that if you take a photo with the stock camera app, but don't wait long enough for the save to complete and switch from the camera to another app, that your photo will never be saved and just discarded?
I can totally reproduce this behavior very predictably, just take a picture, then swipe up and press the circle button to bring up the desktop, then check the gallery and there is no record of the photo having been taken, it's just like you never took the photo. It kind of sucks that you have to "baby" the phone if you take pictures and want to quickly switch to another app to share the picture. I don't recall the phone behaving this way before Oreo.
Just to be safe I did a factory reset and yes the phone predictably behaves this way, where you need to just sit and wait in the camera app until the photo is fully committed to storage, and only then can you switch to another app. Apologies if this is a well-known bug but I wanted to hear other's experiences with how to best deal with this annoyance.
I tried it with my Verizon LG G6 and got the picture every time! Wondering what is different between the Sprint and Verizon versions?
Even my LG G2 did that on Lineage OS. No idea why.
So I'm going to guess it may be Oreo related.

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