Install CWM 6 on Xperia Z1 Running Latest 14.2.A.1.136 Firmware [How To – Guide]

Sony recently updated it’s flagship device Xperia Z1 to Android 4.3 Jelly Bean as it promised the users to soon take some of it’s devices to higher Android version. Xperia Z1 initially ran on Android 4.2.2 and later received Android 4.3 Jelly Bean update based on build number 14.2.A.0.290. To enchance the performance and fix some minor bugs, Sony rolled out more updates based on Android 4.3 and the latest firmware running on Xperia Z1 is based on build number 14.2.A.1.136 Android 4.3 Jelly Bean.

Earlier we posted a method to root Xperia Z1 on Android 4.3 14.2.A.0.290 firmware and  a number of users is still using that firmware as the newest update 14.2.A.1.136 is on a slow roll out and has not reached all the regions yet. For those of you who have updated their device already, might be look for a way to install a custom recovery now and get root access. In case you are failed to find any working custom recovery, you may be at the right spot to get it done now. We’ve found CWM 6.0.4.6 compatible with Xperia Z1 (All Variants) running Android 4.3 Jelly Bean 14.2.A.1.136 and in the following post we will be installing it on the device. Let’s move forward and go through the important instructions and installation steps one by one after having a brief intro of a custom recovery just in case some of you are not familiar with it.

A custom recovery allows you to install custom roms, mods etc. Along with these, you can make a Nandroid backup, this helps you a lot as you can move back to the previous working state of your phone at any time you want if you have backed up your current system. In some cases, to root the phone you need to flash SuperSu.zip file in the custom recovery, having installed the recovery may help you while in some cases to install the recovery easily, you need to have the phone rooted. You can also wipe cache and dalvik cache of your phone using a custom recovery. There is alot more you can do using a custom recovery, you may install one and experience it yourself for further know-how.

Pre Requisites:

      1. This guide is only for Sony Xperia Z1 C6903/2/6943. Do not try this on any other model, please check yourdevice’s mode in Settings > About Device.
      2. The CWM  recovery is only for Xperia Z1 C6903/C6902/C6943 running latest Android 4.3 Jelly Bean 14.2.A.1.136 firmware. Check your firmware version in Settings > About Device and make sure that it matches the one mentioned here.
      3. You must have installed Android ADB & Fastboot drivers. Follow the quick guide here.
      4. Your device must have an unlocked bootloader. Follow our full guide here in order to unlock.
      5. Please make sure that your phone’s battery is charged at least over 60%. This is highly recommended in order to prevent any power issues during the recovery flashing process.
      6. Backup each and everything on your Android phone as follows:
      7. Backup all your important contacts, find the full guide here.
      8. Backup all your important sms messages, find the full guide here.
      9. Backup all your important call logs, find the full guide here.
      10. Backup all your important media content manually. (Copy to your PC.)
      11. Backup all your apps / data. If you’ve rooted your device, use Titanium Backup to do so. Follow the full guide here.
      12. Backup your current system using a custom recovery (CWM or TWRP) if you’ve flashed one. This is recommended in case something goes wrong with CWM installation, you can use the custom recovery and return to the old working state of your system.
      13. Enable USB debugging mode on your device.  Get it in Settings > Developer Options > USB Debugging mode.
      14. Use only OEM data cable to establish connection between your PC and Phone.
      15. Alright! Follow this guide to the letter now.
Disclaimer: The methods involved in flashing custom roms and rooting your phone is highly custom and may result in bricking your device, and has nothing to do with Google or the device manufacturer that is SONY in our case. Also rooting your device will void its warranty and you will be no longer eligible for any kind of free device services by the manufacturers/warranty providers. In case of any mishap we may not be held responsible. Follow these instructions to the letter to avoid any mishap or bricking. Make sure that whatever you do, you are doing it at your own responsibility.

 

How to Install CWM 6 Recovery on Xperia Z1:

    1. Download Doomlord’s Advanced Stock Kernel with CWM Recovery
    2. Copy the downloaded.zip file to your phone’s sd card.
    3. Extract the downloaded .zip folder on your PC, you will get a Boot.img file.
    4. Place the extracted Boot.img file in the Minimal ADB & Fastboot folder that you created using our ADB & Fastboot Quick Setup Guide.
    5. If you are using Android ADB & Fastboot full package, you can place the downloaded Recovery.img file in the Fastboot folder or in the Platform-tools folder.
    6. Open the folder where you placed the Boot.img  file. E.g Minimal ADB & Fastbootor Fastboot or Platform Tools.
    7. Press and hold the shift key and right click on an empty area within the folder, and click on “Open Command Window Here”.
    8. Turn off your Xperia Z1 completely.
    9. Now press the Volume Up Key and while keeping it pressed plug in the USB cable.
    10. You should see a blue light in the notification light of your phone, that means your device is now connected in Fastboot mode.
    11. Now type the following command: Fastboot Flash boot Boot.img
    12. Hit Enter and it will quickly flash CWM 6.0.4.6 recovery in your Xperia Z1
    13. Once recovery is flashed, now issue this command “Fastboot Reboot”
    14. Your device will reboot now, as soon as you see the Sony logo,  and the pink LED, press Volume Up key to enter recovery.
    15. Congrats! You should now see the custom recovery.
    16. Once in CWM recovery, flash the zip file you copied to your phone in step 2. To do so,  select “install zip > choose zip from sd card > doomlord advanced stock kernel.zip > yes” and flash it.
    17. Once flashed the zip file, reboot your device.
    18. That’s all.

Screenshot_1

 

That’s All with the recovery installation. In case you got any queries or face any difficulties regarding this post, please feel free to stop by the comment box below and let us know. We will get back to you as soon as possible. Thanks all.


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Usama M

+Usama M: Ex Farmviller | Android Fanatic | Software Engineer,Founder - TechBeasts.com
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  • Usama Mujtaba

    @disqus_VjZfFPzSNl:disqus if you’re using windows 8.1 it may not work. You need windows 7 or 8. This is connection issue and the pic shows that your phone is not detected by your PC. Please make sure that it is connected properly in fastboot and you’ve installed fastboot drivers using the flashtool drivers.

  • Marcos Sartori

    when i type “Fastboot Flash boot Boot.img” nothing happens…all ok until this…

  • Marcos Sartori

    Fastboot “flash” boot Boot.img … in lower case…

  • Anita Chávez

    Hii I have this problem, please help me..

    • Usama Mujtaba

      @anitachvez:disqus please make sure that your device is properly connected. Turn off windows firewall and anti virus if enabled any, and also make sure that your bootloader is unlocked. Connect your device in fastboot mode properly for this.

  • Osama Shakeel

    My Device didnt reboot after Fastboot Reboot

    • Usama Mujtaba

      @osamashakeel:disqus Reboot it manually, as soon as you see sony logo, press volume up key. You will see CWM recovery if you’ve flashed.

  • Usama Mujtaba

    @anitachvez:disqus to put in fastboot mode, please simply turn it off and turn on again, as soon as you see sony logo, press Volume Up key and it will take you to fastboot.

    • Anita Chávez

      I put it that way and have the same result

      • Anita Chávez

        I solve my problem, I unlocked again my phone and problem solved

  • Guilherme Luiz Dullius

    I’m have some problem..
    Please Help me

    • Usama Mujtaba

      @guilhermeluizdullius:disqus please type the command in small letters e.g fastboot flash boot boot.img
      check if it works or not.

  • Chris

    Hello Usama, thanks for tutorial – everything works like charm ….

    Gotta 2 qestions:

    1. Did all steps up to 15, however forgot to flash zip with recovery, but it’s working fine for me, and I was possible to root the device. What for is 16’th step ?

    2. Does OTA firmware upgrade work after flashing this Kernel ?

    Thanks in advance
    Chris

    • Usama Mujtaba

      @krzysztofpiecha:disqus To be honest, I’m not sure about the OTA update. However if you get it you may not update, I prefer updating manually, OTA might cause some issues having the phone rooted. Flashing the zip will just flash the whole kernel, you should do it for safety measures it’s alright.

  • Bryan Freeman

    Hi, I did all of the above successfully. Have cwm installed etc, but my phone seems to be stuck in boot loop mode or something. I get the sony screen with the pink led then a red led then it reboots and repeats over and over. I can boot in cwm but I cant boot my phone. Please help as Ive just bricked it and void my warranty

    • Usama Mujtaba

      @bryan_freeman:disqus Flash stock firmware and it will fix your device, or just wipe data, cache, and dalvik cache using CWM, and see what happens.

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