Develop Bugs

[Q] Camera not working

Hey,
I know there are a few threads on this but I haven't found one that followed through to a reported solution.
G2 rooted with CyanogenMod 6.1.1 since January of this year. Tried google goggles and the app locked up. I finally realized that was because the camera has stopped responding. When I pressed on the camera help, nothing changes for a few seconds, then it goes to a black screen. Eventually, (pressing on the back key helps) I'll get a force close/wait screen. Camera had been working fine the previous day.
I've tried clearing caches, using a different SD card with no changes. Used the opportunity to finally upgrade to CyanogenMod 7.0.3 and cleared all the caches as part of the flash. Tried the camera the first chance I could get the phone to that point. Same response from the camera (hesitate, black screen, force close).
So, is there anything else to try or is this a hardware camera failure?
Thanks for any help.

Try flashing some other rom. If that fails, then try flashing another radio.
I'd suggest taking a rooted stock rom and a stock radio just to be sure.

Thanks, but I'm trying to understand what any of that would do to fix the camera over what I've already tried.
I guess I'm looking for anyone that actually had a similar problem and either fixed it or failed to fix it.
Thanks.

Well for once the stock rom uses HTCcamera.apk to open the cam. Since you are using CM7 its a completely different apk.
Radio is somethign that is responsible for almost every device on your phone. Then the drivers that are in the Kernel, and then the ROM which has the apk, that uses the driver from the kernel to start the camera that is defined in the radio.

Well, nothing worked. Unrooted and back to stock (camera still doesn't work). Replacement phone is on it's way.

[Q] Flashed ROM to 4.3, Nandroid back to 4.1.1, now no camera.

Help, I brokeded my phone trying to use this ROM!
I recently tried to flash the 4.3 Stock MOD ROM to my ATT S3. It wasn't smooth for me so I Nandroided back to 4.1.1. and now my camera does not work and I get an error that says "Cant connect to the Camera" or "Camera failed" depending if I use the Jelly Bean Camera or the Samsung camera.
No fault of the ROM I’m sure but I need help figuring out what I’ve done wrong. I switched back to my Nandroid backup of 4.1.1 Stock because 4.3 was just NO smooth for me. Also I can’t stand regular keyboard, I need my Samsung Note 2 keyboard!
4.3 had a lot of laggy-ness and random crashing. I flashed the Modem, ROM and Kernel in the order with the steps listed per the OP.
When I decided to go back to my backup, I flashed the DLK3 Stock Modem, then flashed back to my backup and wipe the various caches.
Everything about my backup works BUT my camera. I also noticed I can’t use the flashlight option on my 4.1.1 ROM now. Anything related to the camera is broken.
I’ve tried killing and clearing the camera process per several articles I found on Google and here on XDA without luck. Everything suggested it was a hardware issue at that point and to warranty the phone. I deiced to try 4.3 one more time and sure enough, my camera works when flash back to Anroid 4.3 ROM.
I’m stumped.
Any thoughts sort of reinstalling 4.1.1 from scratch?

kdoggy said:
Help, I brokeded my phone trying to use this ROM!
I recently tried to flash the 4.3 Stock MOD ROM to my ATT S3. It wasn't smooth for me so I Nandroided back to 4.1.1. and now my camera does not work and I get an error that says "Cant connect to the Camera" or "Camera failed" depending if I use the Jelly Bean Camera or the Samsung camera.
No fault of the ROM I’m sure but I need help figuring out what I’ve done wrong. I switched back to my Nandroid backup of 4.1.1 Stock because 4.3 was just NO smooth for me. Also I can’t stand regular keyboard, I need my Samsung Note 2 keyboard!
4.3 had a lot of laggy-ness and random crashing. I flashed the Modem, ROM and Kernel in the order with the steps listed per the OP.
When I decided to go back to my backup, I flashed the DLK3 Stock Modem, then flashed back to my backup and wipe the various caches.
Everything about my backup works BUT my camera. I also noticed I can’t use the flashlight option on my 4.1.1 ROM now. Anything related to the camera is broken.
I’ve tried killing and clearing the camera process per several articles I found on Google and here on XDA without luck. Everything suggested it was a hardware issue at that point and to warranty the phone. I deiced to try 4.3 one more time and sure enough, my camera works when flash back to Anroid 4.3 ROM.
I’m stumped.
Any thoughts sort of reinstalling 4.1.1 from scratch?
Click to expand...
Click to collapse
You have to have the bootloaders for 4.1.1 for the camera to work in 4.1.1. This happened to me a while back with 4.1.2. There's a thread here somewhere where you can download the correct bootloaders and flash with ODIN.
EDIT: Here's the thread: http://forum.xda-developers.com/showthread.php?t=2321310
You need the DLK3 bootloaders (well, that is if you have the AT&T gs3) for the camera to work.

jack man said:
You have to have the bootloaders for 4.1.1 for the camera to work in 4.1.1. This happened to me a while back with 4.1.2. There's a thread here somewhere where you can download the correct bootloaders and flash with ODIN.
EDIT: Here's the thread: http://forum.xda-developers.com/showthread.php?t=2321310
You need the DLK3 bootloaders (well, that is if you have the AT&T gs3) for the camera to work.
Click to expand...
Click to collapse
YOU ROCK! You have been thanked.
That completely fixed the issue. I didn't realize the bootloader changed.OK thanks again you saved me a lot of hassle and trouble shooting.

[Q] Camera stopped with cm update

Hi,
last week i updated my cyanogenmmod to 20140526 and had some bigger Problems with the Dialer. I was not able to call someone. Every time the idcallerui crashed.
Because of this i tried some different roms like Paranodid or older cm roms. Now i dont have this Problem with the dialer but now my camera doesnt work any more. If i try to open the camera it stopps. Before i installed a new rom i always did a full wipe in the recovery mode.
I tried different gapps from paranoid, cm, mini or stock but nothng fixes my camera.
I dont want to send it back to samsung to get this fixed because i have to wait to long for my phone.
What did i do wrong? False Gapps for galaxy nexus?
What combination of rom and gapps can u recommend?

i now have flashed my device back to complete stock rom. But the problem still exists. when i try to open the camera app it stoppes.
i tried a app called facecam and there i get the error :"Failed to connect to camera service"
Should i send it to Samsung? I still have 3 Weeks Waranty
how can i see if it is definitly stock and samsung cant see that i had root and a diferent rom?

dopamin said:
i now have flashed my device back to complete stock rom. But the problem still exists. when i try to open the camera app it stoppes.
i tried a app called facecam and there i get the error :"Failed to connect to camera service"
Should i send it to Samsung? I still have 3 Weeks Waranty
how can i see if it is definitly stock and samsung cant see that i had root and a diferent rom?
Click to expand...
Click to collapse
2 things!
1* You front facing camera needs to be replaced
2* Send it to Samsung like it is they do not care if the phone is locked, rooted, or a custom rom.
Trust me I've done it myself!

[Q] Need to downgrade, how?

Greetings, I wonder if somebody can solve the following problem. I'm from Venezuela and I bought this model GT-I9192 in December 2013 when the update came out this year it was updated from 4.2.2 (JellyBean) to 4.4.2 (KitKat). I almost never use the camera of this phone and then I noticed that every time I opened the camera app I would get "Warning: Camera Failed". Thinking it was the update I proceeded to install the Cyanogenmod rom 11 for this model, but continued with the same problem. The flash works every time I turn the flashlight application. I took it to a technician telling me that the problem was not hardware but software. This is where my troubles began. I do not remember which firmware was installed. I tried to install several firmwares 4.2.2. but without success all with flashing failures. However, I could install version 4.4.2 of Trinidad and Tobago but with the same camera error. Hopefully someone can help me with this problem. I would like to know exactly what firmware should download to install? Thank you very much.

nelson2006 said:
Greetings, I wonder if somebody can solve the following problem. I'm from Venezuela and I bought this model GT-I9192 in December 2013 when the update came out this year it was updated from 4.2.2 (JellyBean) to 4.4.2 (KitKat). I almost never use the camera of this phone and then I noticed that every time I opened the camera app I would get "Warning: Camera Failed". Thinking it was the update I proceeded to install the Cyanogenmod rom 11 for this model, but continued with the same problem. The flash works every time I turn the flashlight application. I took it to a technician telling me that the problem was not hardware but software. This is where my troubles began. I do not remember which firmware was installed. I tried to install several firmwares 4.2.2. but without success all with flashing failures. However, I could install version 4.4.2 of Trinidad and Tobago but with the same camera error. Hopefully someone can help me with this problem. I would like to know exactly what firmware should download to install? Thank you very much.
Click to expand...
Click to collapse
I registered here just to answer your question.
My Android expertise is very limited but I try to learn from past experience. If I understand correctly, your want:
1. the camera should work.
2. the phone should function properly.
If you do not remember your original firmware, do not worry as it does not matter. Once your upgraded to KK, Knox (google it) kicked in to prevent you from downgrading to JB. That's why all flashing efforts to downgrade failed. So, you can keep your phone with KK if the phone works except camera. In case you want to downgrade to JB, I am sure that able XDA members can help you with that. I am unaware if such methods exist.
Now, to see if the camera works there are several methods. I encountered the same problem with my wives i727 Skyrocket which has JB 4.1.2 installed. One day the camera suddenly failed with the error "Warning: Camera Failed". The flash-light worked flawlessly so I was a bit perplexed. I researched and found several remedies:
1. From application manager, clear cache/data of the camera app and restart phone - Tried this several times, did not work.
2. Perform factory reset- Thought I'd use it as a last resort as the phone had gigs of data in it.
3. Uninstall apps (last installed app uninstalled first and so on) - I uninstalled the last installed app and restarted the phone. Voila! The camera was back. I have no explanations why but it just worked.
Let us know how it goes, good luck!

On the i9195, it is possible and easy to downgrade to JB since there's a 4.2.2 firmware which is similar to the 4.4.2 firmwares, but I don't know about the i9192.
Be careful with this;
If you know what you are doing, get the CWM recovery, format system/data and flash a 4.4.2 firmware again. If that didn't fix it, I suspect that it's a hardware problem and it's having problems with the software, but there should be something wrong with the hardware, for sure.
Good Luck.

snipar said:
I registered here just to answer your question.
My Android expertise is very limited but I try to learn from past experience. If I understand correctly, your want:
1. the camera should work.
2. the phone should function properly.
If you do not remember your original firmware, do not worry as it does not matter. Once your upgraded to KK, Knox (google it) kicked in to prevent you from downgrading to JB. That's why all flashing efforts to downgrade failed. So, you can keep your phone with KK if the phone works except camera. In case you want to downgrade to JB, I am sure that able XDA members can help you with that. I am unaware if such methods exist.
Now, to see if the camera works there are several methods. I encountered the same problem with my wives i727 Skyrocket which has JB 4.1.2 installed. One day the camera suddenly failed with the error "Warning: Camera Failed". The flash-light worked flawlessly so I was a bit perplexed. I researched and found several remedies:
1. From application manager, clear cache/data of the camera app and restart phone - Tried this several times, did not work.
2. Perform factory reset- Thought I'd use it as a last resort as the phone had gigs of data in it.
3. Uninstall apps (last installed app uninstalled first and so on) - I uninstalled the last installed app and restarted the phone. Voila! The camera was back. I have no explanations why but it just worked.
Let us know how it goes, good luck!
Click to expand...
Click to collapse
I haved tried the first two steps and no luck at all. Maybe this weekend I'll try the third one. Thank you for the reply.

snipar said:
I registered here just to answer your question.
My Android expertise is very limited but I try to learn from past experience. If I understand correctly, your want:
1. the camera should work.
2. the phone should function properly.
If you do not remember your original firmware, do not worry as it does not matter. Once your upgraded to KK, Knox (google it) kicked in to prevent you from downgrading to JB. That's why all flashing efforts to downgrade failed. So, you can keep your phone with KK if the phone works except camera. In case you want to downgrade to JB, I am sure that able XDA members can help you with that. I am unaware if such methods exist.
Now, to see if the camera works there are several methods. I encountered the same problem with my wives i727 Skyrocket which has JB 4.1.2 installed. One day the camera suddenly failed with the error "Warning: Camera Failed". The flash-light worked flawlessly so I was a bit perplexed. I researched and found several remedies:
1. From application manager, clear cache/data of the camera app and restart phone - Tried this several times, did not work.
2. Perform factory reset- Thought I'd use it as a last resort as the phone had gigs of data in it.
3. Uninstall apps (last installed app uninstalled first and so on) - I uninstalled the last installed app and restarted the phone. Voila! The camera was back. I have no explanations why but it just worked.
Let us know how it goes, good luck!
Click to expand...
Click to collapse
RoyaLKurTx3 said:
On the i9195, it is possible and easy to downgrade to JB since there's a 4.2.2 firmware which is similar to the 4.4.2 firmwares, but I don't know about the i9192.
Be careful with this;
If you know what you are doing, get the CWM recovery, format system/data and flash a 4.4.2 firmware again. If that didn't fix it, I suspect that it's a hardware problem and it's having problems with the software, but there should be something wrong with the hardware, for sure.
Good Luck.
Click to expand...
Click to collapse
Tried that too and nothing. I also suspect that the problem is a hardware issue. Thank you for the reply.

nelson2006 said:
Tried that too and nothing. I also suspect that the problem is a hardware issue. Thank you for the reply.
Click to expand...
Click to collapse
The problem, in fact is a fault in the hardware problem. If it's still under warranty, request a new phone.

GPS not working on SlimKat 4.4.4

Hello,
So I've flashed before Slimbean, but had problems with the "can't connect to camera" problem, so I decided to flash Slimkat 4.4.4 which fixed the camera problem.
New problem now is that i can't get any gps signal. I can turn it on, but no signal. Anyone have a solution to this, or is experiencing the same problem?
Downloaded from here: http://www.slimroms.net/index.php/downloads/dlsearch/viewcategory/1074-d2att-d2tmo

drakemiller40 said:
Hello,
So I've flashed before Slimbean, but had problems with the "can't connect to camera" problem, so I decided to flash Slimkat 4.4.4 which fixed the camera problem.
New problem now is that i can't get any gps signal. I can turn it on, but no signal. Anyone have a solution to this, or is experiencing the same problem?
Downloaded from here: http://www.slimroms.net/index.php/downloads/dlsearch/viewcategory/1074-d2att-d2tmo
Click to expand...
Click to collapse
Hi, the link you provided points to build 4. You can find build 9 which is the latest slimkat here http://www.slimroms.net/index.php/downloads/dlsearch/viewcategory/1183-d2lte
This is the one I have for my Koodo I747M. *note camera seemed a little buggy in some instances, so I installed open camera. Seemed to work a lot better.

I'll give it a try, thanks for the help. Quick question, will this work on my phone model without bricking? I only tried the at&t not the d2lte.
Also can you send me the link for this open camera you were talking about for my device as well?

drakemiller40 said:
I'll give it a try, thanks for the help. Quick question, will this work on my phone model without bricking? I only tried the at&t not the d2lte.
Also can you send me the link for this open camera you were talking about for my device as well?
Click to expand...
Click to collapse
I'd imagine it should be ok, since we have the same phone pretty much I'm on koodo which is pretty much telus without the customer service hehe. for kitkat at the end of development they basically lumped a d2att, d2tmo etc together. (this has reverted for the lollipop builds out there).
The last OTA I got was FOB1, so you may want to go to stock to ota to the latest updates from telus. Just so you have the latest bootloader/firmware. But that's up to you of course.
It's a google play app open source, the slimkat one I had seemed to lockup when switching from front to back camera and from camera to video. https://play.google.com/store/apps/details?id=net.sourceforge.opencamera&hl=en
What are you using to flash them?

serathe said:
I'd imagine it should be ok, since we have the same phone pretty much I'm on koodo which is pretty much telus without the customer service hehe. for kitkat at the end of development they basically lumped a d2att, d2tmo etc together. (this has reverted for the lollipop builds out there).
The last OTA I got was FOB1, so you may want to go to stock to ota to the latest updates from telus. Just so you have the latest bootloader/firmware. But that's up to you of course.
It's a google play app open source, the slimkat one I had seemed to lockup when switching from front to back camera and from camera to video. https://play.google.com/store/apps/details?id=net.sourceforge.opencamera&hl=en
What are you using to flash them?
Click to expand...
Click to collapse
Im not very experienced lol and got lost on:
"The last OTA I got was FOB1, so you may want to go to stock to ota to the latest updates from telus. Just so you have the latest bootloader/firmware. But that's up to you of course. "
I'm using TWRP

Ah, ok I just keep a backup in case anything goes bad flashing roms. If you use TWRP to flash them it only affects the boot image, data and system. So if you have problems you can restore from backup nice and easy.
I'm swapping between a few right now. So far my only uh oh experience was when I tried to upgrade TWRP, no problems with roms. But I use TWRP as well, works great.
Basically the baseband version on our phone, it's the radio and bootloader. Before I had rooted it I had gotten the latest updates by checking for updates. It downloaded and upgraded to FOB1 (Baseband I747MVLUFOB1), then I rooted and played with flashing. Not sure if you made a backup of your original install before trying another rom. But it's not a necessity for slimkat, I don't believe.

serathe said:
Ah, ok I just keep a backup in case anything goes bad flashing roms. If you use TWRP to flash them it only affects the boot image, data and system. So if you have problems you can restore from backup nice and easy.
I'm swapping between a few right now. So far my only uh oh experience was when I tried to upgrade TWRP, no problems with roms. But I use TWRP as well, works great.
Basically the baseband version on our phone, it's the radio and bootloader. Before I had rooted it I had gotten the latest updates by checking for updates. It downloaded and upgraded to FOB1 (Baseband I747MVLUFOB1), then I rooted and played with flashing. Not sure if you made a backup of your original install before trying another rom. But it's not a necessity for slimkat, I don't believe.
Click to expand...
Click to collapse
Yeah I always create a nandroid and backup my IME.

drakemiller40 said:
Hello,
So I've flashed before Slimbean, but had problems with the "can't connect to camera" problem, so I decided to flash Slimkat 4.4.4 which fixed the camera problem.
New problem now is that i can't get any gps signal. I can turn it on, but no signal. Anyone have a solution to this, or is experiencing the same problem?
Downloaded from here: http://www.slimroms.net/index.php/downloads/dlsearch/viewcategory/1074-d2att-d2tmo
Click to expand...
Click to collapse
First thing to try for GPS problems is taking off the back cover and snugging up all the little screws around the phone. Sometimes they work their way loose and the GPS antenna seems to be the first thing to suffer from it.
If that doesn't cure it you might need to flash a stock or at least stock based ROM and rebuild the nvram. Here's a link that describes how to do that if you need to.