[Galaxy S III Q&A, Help & Troubleshooting] lau.be:
Hello, I'm Laurent from Belgium. Juste arrived in Taiwan couple of days ago.

I put CM13 a couple of months ago on my beloved S3. (I9300 from belgium)

Everything was fine, sometimes camera plant and just have to reboot.

But Monday when I arrived in Taiwan (pity) I wanted to take a picture and than big freeze and the phone totally blocked. It was on a boot loop (logo animation).

Arrived at the hotel than I try others CM (nightly and snapchot) with or without gapps and flashed correctly but still on a boot loop, once he arrived at the first step (choose language) but as soon as i touch the screen freeze, than boot loop again.

I arrived finally to get the stock rom and put everything back on 4.3 (from updato.com/firmware-archive-select-model ).

Can't use the front camera, rear camera and flash:

- The stock camera app: i see all the buton but don't do anything if I touch them (settings, color, switch rear/front ...) and the screen is black. the menu button on bottom left just propose me "edit shortcut"

- All other app: instagram and others don't work (it launch but do nothing when I push the picture button)

- Flashlight app freeze too, when I launch, black screen and the flash never light.

- When I used the code *#0*# (or something) it launch the soft but if I choose "mega cam" black screen and than "test factory is not responding" (now the front camera work with this test factory)

- when I used the code *#34971539# to launch "camerafirmware standard" I just have this title on the top but again nothing under, black (not the menu with upgrade camera firmware etc)

I try so the full wipe and reinstall without wifi etc (so don't go on my google account dl straight app etc)

I try the app manager: force stop and clear cache and clear data.

I try a small package fix camera found in a thread here

I try recovery and wipe cache, wipe data, factory reset ...

I bought a screw driver and open it and move cables etc (not totally remove the motherboard

I try to put an other kernel.

I try to update the camera firmware by recovery (but don't know if it can work or not)

I read and read and read so many thread all over google hours and hours ...

The thing is that so the flash doesn't work either: when I install the flashlight it tell me "need to access camera" so say yes of course, but so plant when I launch, so means that the app try to pass by the camera driver to open the flash no? problem is that I can't update the firmware as the samsung code plant also. I don't know if on stock I can install it by an other way or either remove/reinstall camera driver or stock camera app.

I was thinking to buy a new phone here anyway but no in a hurry and the first month here in taiwan I want to travel so take pictures as well :( I will try to find an old shop with broken phone and replace the camera.

ps: I'm not sure about the carrier/region of my phone ! is it possible to find it somewhere? with iemi or SN ? When I use kies he told me I'm already update, but I'm not sure if I have the right stock rom. (everything else work fine so)

GT I9300

FDD ID: A3LGTI9300A

SSN: -I9300GSMH

IMEI: 354793/05/342885/2

S/N: RF1CAEFX6HB

(internet connection in the hotel is slow, I need to go to a coffee shop to DL rom, so I can't try every other stock rom :p)

Thank you if you took time to read uh uh