The latest firmware build number for Xperia Z1 C6902 and C6903 is 14.5.A.0.242. It is based on Android 5.0.2 Lollipop. The firmware has been released a while ago. For power users, it is necessary to find the rooting method for the new firmware before updating their devices. This is important because most of power applications and modifications require root access. As soon as the firmware for Xperia Z1 is released, a new rooting method has also been designed for it.
This guide covers two topics; Rooting Xperia Z1 C6902 and C6903 on Android 5.0.2 Lollipoo 14.5.A.0.242 firmware, and the second topic is to install Dual Recovery (Philz Touch and TWRP) on Xperia Z1 Lollipop firmware. The Dual recovery is developed by NUT who is a recognized XDA developer and is currently supporting number of Xperia devices. To be able to follow this guide, you should keep in mind that there are three major steps. All the steps are explained in detail. All steps are explained will complete details so that any kind of error can be avoided. There are three main steps. Rooting KitKat firmware and downgrading if you have updated the device already. Creating the pre-rooted firmware and the third step is to root and install dual recovery in Xperia Z1. Make sure that you follow all the steps given below and complete all pre-required steps to avoid all kind of errors. The model number and build numbers are mentioned again and again throughout the post so that you do not mistakenly use this guide on any other smartphone or any other variant of Xperia Z1.
1. This is only for Sony Xperia Z1 C6902 and Xperia Z1 C6903
This rooting method is only for the device mentioned above. Make sure that your model number matches the one listed above. To do so, go to Settings > About Device on your device and see your model number. Flashing this firmware on any other device will result in bricking it so make sure that you meet this requirement first of all.
2. Battery should be charged at least over 60%.
Make sure that your battery is charged enough to complete the flashing process. In case your battery is low and your device goes dead during the flashing process, you may end up soft bricking your device as it won’t complete the flashing process.
3. Backup everything!
Just to be on the safe side, you may consider backing up each and everything from your Android device. This is highly recommended so that in case anything goes wrong, you still have the access to all of your data and you can restore it immediately. You may backup everything as listed below.
- Backup SMS Messages
- Backup Call Logs
- Backup Contacts
- Backup Media – Copy your files manually to your PC or Laptop.
- Titanium Backup – If already rooted, use Titanium Backup to backup all of your apps, system data and other important content. If you haven’t rooted your device previously, skip this step.
- Backup Nandroid – If CWM or TWRP installed previously, otherwise skip this step and perform this at the end of flashing.
4. Enable USB Debugging Mode on your device.
Enable USB debugging mode on your device. To do so, tap settings>developer options>USB debugging. If you can’t find developer options in settings, then tap settings > about device and tap “Build Number” for 7 times and you’ll get em’ activated under settings.
5. Install and setup Sony Flashtool.
You must have installed Sony Flashtool. Find the full guide here.
After installing Sony Flashtool, open the Flashtool folder from the drive where you installed it. Now open Flashtool>Drivers>Flashtool-drivers.exe and install the Flashtool, Fastboot & Xperia Z1 drivers from the list. If you do not find the Flashtool drivers in Flashmode, skip this step and install Sony PC Companion instead, for drivers support. [Important]
6. Use OEM data cable to establish connection.
Make sure that you use the phone’s original data cable to establish connection between your phone and the PC. Using a different data cable might result in interrupting the firmware installation.
7. Unlock Bootloader
Use the following guide to unlock the bootloader of your Xperia device before proceeding.
Contents
Note: If you do not want to create a pre-rooted flashable zip for your phone yourself, then you can download it for your phone’s specific model number and use it in the guide.
C6902 14.5.A.0.242 Pre-Rooted Flashable Zip | C6903 14.5.A.0.242 Pre-Rooted Flashable Zip
Got any questions? Ask me in the comments below
This post was last modified on October 6, 2018 4:23 am
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View Comments
Why did we flash the firmware 2 times?
(Once from recovery and the other time from flashtool)
Thank you very much for this tutorial! We really needed it!
@ralphchahwan:disqus basically you will flash the old firmware to gain the root access on it and then you will flash the new pre-rooted firmware using recovery. Make sure that you follow the tutorial carefully and don't forget to leave us the feedback.
I will try it soon!
I was talking about 3) f and r
F) we flashed the zip file containing lollipop using recovery
R) we flashed the same ftf with flashtool
I just wanna know why
Thank you
@ralphchahwan:disqus in 1, you downgrade to old firmware and root it, in 2nd you create pre-rooted file of new firmware and in 3 you flash pre-rooted ftf. Is it clear now?
3) m part explains why you need to flash normal ftf after flashing the pre-rooted firmware. To flash leatest kernel, data etc but not the system. It is excluded while flashing which keeps root and recovery.
no way to root android 5 without downgrade to kitkat ? if Possible tel me
@emadmonazzam:disqus as of now, this is the only way we could find, but as soon as we find a new method we will post it on our site :) stay connected.
HI , I followed the exact same instructions mentioned above for my z1 6902 .. but as soon as i install "flashable.zip" from my CWRM.. and it goes in to boot loop .. pls suggest
@disqus_6XZj17YFUX:disqus can you please try wiping cache/dalvik cache from recovery?
Hi there - I've been following the steps closely, but I can't get to the recovery in Step 3. The article says
"Turn it on again and press volume up or down repeatedly to enter custom recovery."
Which one is it? Is it the up or down button?
@equesta:disqus try pressing both (Up or Down) simultaneously. Good Luck.
Can I root my Xperia z1 lollipop?
@muhammadkhamis:disqus use the tutorial explained above. Good Luck.
@paulussbd:disqus if you have a recovery installed on your device, just make a pre-rooted .242 firmware and flash it straight away. You do not need to go to .108 for that. Good Luck.
how to know if i have a recovery installed on my device and how to make a pre rooted .242 firmware
@albanavdiu:disqus please read the guide. It explains everything.
@vuthenix:disqus I'm looking into the method and trying to verify it once again, Please stay connected.
Nvm I reflash new UPDATE SuperSU zip now I got what I needed
@vuthenix:disqus can you please the steps exactly what you did?
Your comment will help others who are having issues at the moment :)
Thank you for letting us know :)
Well I completed your steps and the phone bootloop so I go to recovery to reflash the flashable.zip then factory reset and clear all cache/delvic then I flash SuperSU zip again. All problem was solved
Thank You!! I followed what you did but I will try to write it in detail for others:
1) I went into consistant bootloop after reaching near the end of this tutorial so I booted my phone into recovery using volume down (volume up wouldnt work) and booted into TWRP. (I was lucky this time because previously neither button would work)
2) While my phone was in recovery mode, I made a new flashable.zip using PRFC because the one on this website was a Hong Kong 242 .ftf file and I needed UK or else my mobile data wouldnt work.
3) After the flashable.zip had finished making, I moved it to the External SD Card of my phone.
4) Then, I loacated the UK .ftf file on my computer that I used to create the flashable.zip and copied it into the .firmwares folder of flashtool.
5) I then turned my phone off and set up flashtool to flash the UK 242 .ftf file. I made sure
that it was in flashmode, and that in the "WIPE" box, APPS, CACHE and DATA were TICKED. In the EXCLUDE box, BASEBAND and SYSTEM must be also TICKED.
6) When prompted, I pressed the volume down button while connecting my phone to my computer and i HELD THE BUTTON DOWN DURING THE WHOLE PROCESS.
7) When flashtool says "Flashing finished. Please unplug and start your phone." Unplug the phone and boot up the phone. When the Sony Xperia logo appears, continuously press the volume up or down button to boot into recovery.
8) Once in recovery, click the "install" box and locate the flashable.zip that you created and flash it.
9) Then wipe cache and dalvik partition (cant remember exactly what it says.)
10) Find your Super SU zip and install it (still in recovery)
11) Now reboot!
12) You should be finished! Boot up might take a long time but as long as the screen dims while the Sony waves are there you are completely fine.
This was perfomed twice on a Sony Xperia Z1 C6903 Unlocked sim and Unlocked bootloader. I can confirm that I have Android Lollipop 5.0.2 running and rooted on my phone... Finally! After weeks of trying and failing. Thanks to everyone in the comment section getting me on the right track. :))
@disqus_uoKbesjoaJ:disqus yes there is, it will be available on our site tonight.
What is the function of unlock BL????
To flash the flashable zip
No to either. Hi, I'm also now stuck in a boot loop. I tried the same thing as @Vuth Enix below (factory reset, wipe cache/dalvik, etc) but still am stuck in a bootloop.
@equesta:disqus flash the flashable.zip file in recovery and then factory reset your device, after that flash the supersu.zip file. Good Luck
Just it flash those 2 firmware all over and over again until it boot up normally. First try flash from PC then flash the zip. If not working do the opposite thing and SuperSU after that