[Xperia Z1 Q&A, Help & Troubleshooting] VR2014:
--GUIDE TO FIX FREEZING CAMERA and similair issues, with 757 or 681 firmware--

Even though people in this forum learned me how to fix my camera,

I am not sure everybody understands this completely, since the explanations were not too clear. Thank you for helping me, here is my try to help back... I am going to write this down in a much more easy way to understand.

Yes! This worked perfectly for me and I think it will work for you too.

After this guide, you will have a working camera, you will have the latest firmware, and you will still have a working recovery and root.

I have only tested this with an unlocked bootloader, and an unbranded(generic) Xperia Z1 C6903.

I am going to assume that you have 14.3.A.0.757 or 14.3.A.0.681 as current firmware (those firmwares seems to be the only ones affected with this problem)

I am also going to assume that you already have USB debugging set to ON, on your phone and that you have

the correct drivers on your computer. (Hey, you have flashed yourself up here and broken your camera,

so yes, you really should have those drivers already installed)

Of course I do not take any resposibility for this, I just know it worked well for me :)

This guide is for those of you who have Windows, I do not know if something similair is done in linux, probobly....

IMPORTANT!!! These steps WILL erase all the contents on your internal card, do a BACKUP

and copy the backup to your computer. Do a nandroid or titanium backup, copy everything to your

computer, also copy all your photos/videos/music/other **** to your computer. Do not follow this guide before you know that you have saved your data. If you have an unlocked bootloader and have done TA backup before, make sure to do it again and save it somewhere.

Part 1

Getting the camera to work again:

1. Browse to http://xdaforums.com/showthread.php?t=2469191

2. Download anyone of these:

C6903 14.3.A.0.757 Global 1277-2880

C6903 14.3.A.0.757 Central Europe 3 1276-4314_R1C

C6903 14.3.A.0.757 Generic DE 1277-0154_R2C

C6903 14.3.A.0.757 Generic ES 1276-2578_R3C

C6903 14.3.A.0.757 Generic HK 1276-7948_R6C

C6903 14.3.A.0.757 Generic IT 1276-0557_R2C

C6903 14.3.A.0.757 Generic PH 1276-7935

C6903 14.3.A.0.757 Generic SG 1276-7937_R3C

C6903 14.3.A.0.757 Generic MEA 1277-2882

C6903 14.3.A.0.757 Generic NCB 1276-9897

.. I chosed the NCB version, mostly cause I live in Sweden and I link the name NCB, cool .. Ehh..

3. Download the latest flashtool from here : http://www.flashtool.net/index.php (0.9.16.0 is the latest right now)

4. Install flashtool to C:\Flashtool

5. Copy your downloaded ftf firmware to C:\Flashtool\firmwares (yes I mean the one from step 2)

-STEP 5b and 5c are OPTIONAL on only for those who wants to gain root again afterwards-

5b. Download latest supersu from here: http://download.chainfire.eu/396/SuperSU/UPDATE-SuperSU-v1.94.zip (Source http://xdaforums.com/showthread.php?t=1538053)

5c. Copy (do NOT unpack) UPDATE-SuperSU-v1.94.zip from step 5b to your phone (internal or external memory, choose yourself but REMEMBER were you put it)

6. Turn off your phone and give it a goodbye-kiss, do not connect it to the computer yet

7. Launch Flashtool (I used the 32-bits exe file) and press the lightning-symbol, choose Flashmode

8. Choose your firmware from the list to the left, mine was named C6903 14.3.A.0.757 Generic NCB

9. Make sure that Wipe is set on APPSLOG, CACHE and DATA. Exlclude: nothing checked Misc: nothing checked

10. Press on flash. The flasher will prepare your files. After a while a guide starts up, instead of clicking a button

that doesn't exist, press and hold volume DOWN on your phone, and connect the usb-cable.

11. When the guide disappears you will notice that the program will start flashing, you can release volume down now, just wait,

this will take a while. Somewhere near the end of the process, it may appear as the flashing has stopped or hanged, it hasn't, just wait wait wait...

12. When the flasher tool tells you to disconnect your device, do so and power it on.

13. Welcome, all the guides and all the **** is back, but hey you have a working camera! WUAAH My selfie-photos are GONE!!! And i am UNROOTED, *SOB*

Gaining back root and recovery:

1. After you have taken some photos, it is time to get your device rooted again..

2. Download and install Minimal ADB and Fastboot from here: https://docs.google.com/file/d/0B1S0LCuXCnnmSWh6NGJmSE1BUWc/edit?usp=sharing (source from http://xdaforums.com/showthread.php?t=2317790)

3. Download Doomslords stock kernel with CWM from here:

http://doomlord.xperia-files.com/download.php?dlid=WjFfRG9vTUxvUkRfQWR2U3RrS2VybmVsX0ZXLTc1N192MDM=

Caution! Yes I know there is a newer version, but when I tried that I failed, so use exactly this one for now, just to be safe!

4. Extract the file Z1_DooMLoRD_AdvStkKernel_FW-757_v03.zip and move the file called boot.img to the location of Minimal ADB and Fastboot (in my case C:\Program Files (x86)\Minimal ADB and Fastboot)

5. Navigate yourself to your Minimal ADB and fastboot-folder (e g C:\Program Files (x86\Minimal ADB and Fastboot), press and hold the shiftkey and rightclick on an empty area within the folder and click on "Open Command Window Here". A command prompt will open.

6. Turn off your phone again completely

7. Press and hold Volume UP and connect your usb-cable, your phone should lighten up a BLUE light, you are in fastboot mode,

release volume up.

8. In the command prompt that opened when you clicked "Open Command Windows Here" write like this:

fastboot flash boot boot.img

and hit enter.

9. You see that something is writing to your phone, it takes just 1 second or so.

10. Now write: fastboot reboot

Your device reboots, QUICK! press Volume Up as soon as your led turns PINK

11. You should end up in CWM recovery, if you get a black screen or don't end up in recovery, try from step 7 again.

12 You have ended up in CWM recovery, congrats! Now choose install ZIP and navigate yourself to the file UPDATE-SuperSU-v1.94.zip and install it. Now restart that phone of yours.

13. Now you have a rooted 757 firmware with a working camera! Now you can flash dualrecovery from http://xdaforums.com/showthread.php?t=2261606 if you want to, using any method really...

That's all.