[Q] Rooting with C6906 with 4.4 - Xperia Z1 Q&A, Help & Troubleshooting

Hello,
I have a Bell Canada Xperia Z1 C6906 (Locked Bootloader) on 14.3.A.0.757 that is unrooted and I would like some help/advice about rooting it with the least amount of distress since while I need the features provided by rooting I cannot afford to brick my phone. So any help would be very much appreciated.
I have looked through the information and I will provide what I know below - is it correct, is there more I need to do?
Install Flashtool and all drivers.
Backup my TA partition for future reference/restoration.
Download FTF firmware that is version .534 - I found C6906 14.1.G.1.534 Rogers CA (which should be compatible even though its Rogers and I have Bell?) and flash it via flashtool.
Root the Xperia Z1 with 360Root.
Download the NUT's latest locked dual recovery
Z1-lockeddualrecovery2.7.123-BETA.installer.zip (10.22MB) and follow the instructions from [DEVDB][TWRP][PhilZ Touch][CWM] XZDualRecovery 2.7.1XX RC
Download C6906_14.2.A.0.290.flashable.zip and C6906_14.2.A.0.290_Stripped.ftf, place *flashable.zip on the SDCard and *Stripped.ftf in the Flashtool/firmware folder.
Create a full backup of my phone through TWRP
Wipe Dalivik-Cache, System, Data, Cache.
Flash " C6906_14.2.A.0.290.flashable.zip", power off. In Flashtool flash everything (check mark System, data etc ?) for "C6906_14.2.A.0.290_Stripped.ftf". Reboot and on language select reboot into TWRP and restore DATA backup. Wipe Dalivik-Cache and reboot.
Update to the newest version of Android - download C6906_14.3.A.0.757.flashable.zip and C6906_14.3.A.0.757_Stripped.ftf from [STOCK][C69XX][4.4] Update to 14.3.A.0.757 [Root & XZDR][DE-/ODEX] by NUT. Place *flashable.zip on the SDCard and *Stripped.ftf in the Flashtool/firmware folder.
Repeat step 7-9.
Should have a rooted newest version of the Xperia Z1?
Did I miss anything or make it too complex? It seems like a lot of steps just to have a rooted and up to date phone.

Don't use 290 version, use 534.
There's a lot bricked device reported when guys flashed 290 over 757 and version before 757 (can't remember number of that version).
Also, if you don't plan to unlock bootloader there's no need to backup TA, it's OK to do that but it's not necessary.
You can't lose DRM keys as long as you don't unlock it.
And yeah...use binary root method (just Google "binary root method xda" and pick first result.
360 and Kingo are banned from XDA because they read and store your IMEI (and that's totally unnecessary)
Sent from my D6503 using Tapatalk

funky0308 said:
Don't use 290 version, use 534.
There's a lot bricked device reported when guys flashed 290 over 757 and version before 757 (can't remember number of that version).
Also, if you don't plan to unlock bootloader there's no need to backup TA, it's OK to do that but it's not necessary.
You can't lose DRM keys as long as you don't unlock it.
And yeah...use binary root method (just Google "binary root method xda" and pick first result.
360 and Kingo are banned from XDA because they read and store your IMEI (and that's totally unnecessary)
Sent from my D6503 using Tapatalk
Click to expand...
Click to collapse
So I should just stay with .534 and not upgrade at all? I was hoping for an up-to-date version since some of the features in 4.4 are really useful to me.

magwart said:
So I should just stay with .534 and not upgrade at all? I was hoping for an up-to-date version since some of the features in 4.4 are really useful to me.
Click to expand...
Click to collapse
Hehe....no
Just use 534 to downgrade and root and install recovery.
Then flash NUT 757 prerooted ROM from recovery and flash stripped ftf (kernel) using flashtool.
Only thing what I wanna said is - flash 534 and root it don't use 290 - downgrading from 757 to 290 could brick your device...
Sent from my D6503 using Tapatalk

Ok!
So downgrade to .534, do binary root, install DualRecovery and then just flash .757.
Also I keep seeing you need to reflash DualRecovery, would I do so after flashing .757?

No need to apply a root process if you are installing dual recovery
Sent from my C6903 using XDA Premium 4 mobile app

Related

[ROM][STOCK][UPDATE]Xperia Z: DoCoMo ROM 10.1.D.0.343 Update package for keeping root

After releasing ROM update, there’s some people asking about DoCoMo ROM and how to flash ROM version 10.1.D.0.343 with root for locked bootloader. This won’t be a problem for people using custom kernel with recovery support as they can flash root in recovery. However, it’s impossible to get 10.1.D.0.343 rooted with locked bootloader through normal FlashTool methods so here I’m proposing solution for all Xperia Z DoCoMo lovers here.
This package contains three files. One for Flashtool file having system partition and wiping removed. Two for files in system partition of ROM version 10.1.D.0.343 having identical files removed. Three for optional wifi fix for people using DooMKernel as WiFi driver is different to ones in DoCoMo ROM.
Requirements:
1. Working Xperia Z having DoCoMo ROM version 10.1.D.0.333 flashed
2. Rooted
3. CWM/TWRP Recovery support
4. Latest FlashTool for Xperia Z
5. DoCoMo ROM version 10.1.D.0.333 Flashtool file in case you’re screwed up
Installations:
1. Copy xperia_z_docomo_10.1.D.0.343_update.zip to storage. If you’re using DooMKernel, copy xperia_z_docomo_doomlord_wifi_fix.zip as well
2. Shutdown and startup to Recovery menu
3. Flash copied files in 1) respectively.
4. Clear dalvik cache (not cache)
5. Turn off your phone
6. Open Flashtool and flash SO-02E_10.1.D.0.343_update.ftf file. Make sure to exclude baseband if you don’t use Japanese model and KERNEL/FOTA if you’re using DooMKernel.
7. Reboot. Now you should see phone starting up with ROM version 10.1.D.0.343 with root and recovery
Downloads:
Xperia Z: DoCoMo ROM 10.1.D.0.343 Update package
Thank you so much!
Can you send me the latest version root for firmware .333 before I upgrade firmware .343?
And I don't use DooMKernel, can you send me the last compatible DooMKernel with my SO-02E firmware .333? How do I do with the new kernel?
I recommend flashing SuperSu v1.25 or newer after rooting. For kernel, just flash v06. It's from global ROM but I made wifi fix so that it can be used with DoCoMo now.
Windows X said:
I recommend flashing SuperSu v1.25 or newer after rooting. For kernel, just flash v06. It's from global ROM but I made wifi fix so that it can be used with DoCoMo now.
Click to expand...
Click to collapse
Where can i download the lastest SuperSu? Please send me the link! Please...Please... Because I'm a newbie!
Thanks!
http://download.chainfire.eu/315/
My bad. I made huge mistake forgetting to remove clearing system partition line in WiFi fix. Now it's fixed.
ZL?
does this one works on xperiaZL C6503?
i want docomo system coz im using docomo sim card. but my phone is rooted, chenged roms... lol pls help~~ ^^
My SO-02E is always stuck on the Sony logo after trying this update, I've already tried flashing the zip file with TWRP and CWM, not wiping cache and not excluding any file in Flashtool.
Hi,
I'm using the Japanese model (SO-02E from Docomo). My phone is already rooted and has TWRP recovery.
I just want to confirm that I do NOT exclude anything when using Flashtool, am I correct?
saibz said:
My SO-02E is always stuck on the Sony logo after trying this update, I've already tried flashing the zip file with TWRP and CWM, not wiping cache and not excluding any file in Flashtool.
Click to expand...
Click to collapse
Me too, has anyone successfully got this working?
I did the following:
1. installed xperia_z_docomo_10.1.D.0.343_update.zip via TWRP
2. cleared the dalvik cache
3. flash SO-02E_10.1.D.0.343_update.ftf
All I get is a Sony logo
I have the 10.1.D.0.333.ftf and a nandroid backup so I can restore my backup
I think the xperia_z_docomo_10.1.D.0.343_update.zip is borked. I tried everything and it doesn't work
Yep, I've also tried using OTA Root Keeper but then the official update will have errors, so my SO-02E is stuck at 333.
Honestly there's really nothing from the Docomo ROM that I neither need nor use so I'll test out 10.1.1.A.1.253 explained from http://forum.xda-developers.com/showthread.php?t=2282415 sometime this weekend.
I already have my nandroid and Ti backups and the 10.1.D.0.333.ftf in case I want (or need) to revert back.
I can't really find info about it (or I completely failed to find the obvious :s)
I have a Docomo Xperia Z with (unfortunately) a locked bootloader.
It got updated to .343 by my docomo shop when I sent it in for repairs... And I lost root in the process.
Could I downgrade it back to .333 by using flashtool? So I can root it, and then upgrade it to .343 with this trick?
Or is that a bad idea with a Docomo phone? Wouldn't want to brick it.
Firipu said:
I can't really find info about it (or I completely failed to find the obvious :s)
I have a Docomo Xperia Z with (unfortunately) a locked bootloader.
It got updated to .343 by my docomo shop when I sent it in for repairs... And I lost root in the process.
Could I downgrade it back to .333 by using flashtool? So I can root it, and then upgrade it to .343 with this trick?
Or is that a bad idea with a Docomo phone? Wouldn't want to brick it.
Click to expand...
Click to collapse
You can easily downgrade back to .333 using flashtool, root it then do whatever.
Personally I'm using the eXistanZ V3 ROM on my docomo XZ :good:
Firipu said:
I can't really find info about it (or I completely failed to find the obvious :s)
I have a Docomo Xperia Z with (unfortunately) a locked bootloader.
It got updated to .343 by my docomo shop when I sent it in for repairs... And I lost root in the process.
Could I downgrade it back to .333 by using flashtool? So I can root it, and then upgrade it to .343 with this trick?
Or is that a bad idea with a Docomo phone? Wouldn't want to brick it.
Click to expand...
Click to collapse
check out my thread on how to upgrade to stock .343 w/root.
You'll have to downgrade back to .333 using flashtool, root it and install XZDualRecovery. From there just use my files and you'll be on a stock .343 w/root and XZDualRecovery. I've tested this on my SO-02E and it works. You won't lose any data and apps when upgrading.
hello fellow docomo so-02e users, for those of you that is using roms other than docomo ones, did you get your nfc to work?
stryker.jp said:
hello fellow docomo so-02e users, for those of you that is using roms other than docomo ones, did you get your nfc to work?
Click to expand...
Click to collapse
I could never get nfc working on other roms.
Windows X said:
After releasing ROM update, there’s some people asking about DoCoMo ROM and how to flash ROM version 10.1.D.0.343 with root for locked bootloader. This won’t be a problem for people using custom kernel with recovery support as they can flash root in recovery. However, it’s impossible to get 10.1.D.0.343 rooted with locked bootloader through normal FlashTool methods so here I’m proposing solution for all Xperia Z DoCoMo lovers here.
This package contains three files. One for Flashtool file having system partition and wiping removed. Two for files in system partition of ROM version 10.1.D.0.343 having identical files removed. Three for optional wifi fix for people using DooMKernel as WiFi driver is different to ones in DoCoMo ROM.
Requirements:
1. Working Xperia Z having DoCoMo ROM version 10.1.D.0.333 flashed
2. Rooted
3. CWM/TWRP Recovery support
4. Latest FlashTool for Xperia Z
5. DoCoMo ROM version 10.1.D.0.333 Flashtool file in case you’re screwed up
Installations:
1. Copy xperia_z_docomo_10.1.D.0.343_update.zip to storage. If you’re using DooMKernel, copy xperia_z_docomo_doomlord_wifi_fix.zip as well
2. Shutdown and startup to Recovery menu
3. Flash copied files in 1) respectively.
4. Clear dalvik cache (not cache)
5. Turn off your phone
6. Open Flashtool and flash SO-02E_10.1.D.0.343_update.ftf file. Make sure to exclude baseband if you don’t use Japanese model and KERNEL/FOTA if you’re using DooMKernel.
7. Reboot. Now you should see phone starting up with ROM version 10.1.D.0.343 with root and recovery
Downloads:
Xperia Z: DoCoMo ROM 10.1.D.0.343 Update package
Click to expand...
Click to collapse
is it possible to flash a custom recovery and kernel in a docomo xperia z?

[Q] Downgrade from 4.3 (C6903) Xperia Z1 14.2.A.0.290 Generic NCB (Unbranded/Nordic)

Hi everybody!
This is my first post as I usual solve my problems just by reading others people posts.
I recently flashed my z1 (C6903) to 14.2.A.0.290 Generic NCB (Unbranded/Nordic) (4.3 android) as I didn 't like the DE(german version) with the bloatware. I rooted it before with kingo but lost my root after flashing the NCB version I'm now looking for a way to downgrade to a older ncb version root it with kingo and then do a ota upgrade to keep the root. Does anybody have the FTF therfore and what boxes should I pick I want to keep my data or should I let it do a full wipe do a backup with sony companion or the sony app on the phone and than play it in after finishing the downgrade root and OTA? Pls help me I' m completly lost and I'm really missing the root.
Thanks in advance to everyone!!!!!
john
johnnydrift said:
Does anybody have the FTF therfore and what boxes should I pick I want to keep my data or should I let it do a full wipe do a backup with sony companion or the sony app on the phone and than play it in after finishing the downgrade root and OTA?
Click to expand...
Click to collapse
My experience is that if older FTFs aren't in the mega thead (http://forum.xda-developers.com/showthread.php?t=2469191), then you won't find them anywhere. Mega thread only has a 290 FTF for NCB, so you may be SOL if you want to strictly downgrade to 534 NCB and then OTA to 290. However, as long as you flash a generic FTF, you won't get carrier bloatware.
If root is what you'd want, I'd go with [NUT]'s pre-rooted 290: http://forum.xda-developers.com/showthread.php?t=2572988. It's the easiest way to get full root.
..or you follow the instruction step by step here on page 2, post #16 http://forum.xda-developers.com/showthread.php?t=2588331&page=2
johnnydrift said:
Hi everybody!
This is my first post as I usual solve my problems just by reading others people posts.
I recently flashed my z1 (C6903) to 14.2.A.0.290 Generic NCB (Unbranded/Nordic) (4.3 android) as I didn 't like the DE(german version) with the bloatware. I rooted it before with kingo but lost my root after flashing the NCB version I'm now looking for a way to downgrade to a older ncb version root it with kingo and then do a ota upgrade to keep the root. Does anybody have the FTF therfore and what boxes should I pick I want to keep my data or should I let it do a full wipe do a backup with sony companion or the sony app on the phone and than play it in after finishing the downgrade root and OTA? Pls help me I' m completly lost and I'm really missing the root.
Thanks in advance to everyone!!!!!
john
Click to expand...
Click to collapse
Here's a link to the correct FTF (note that it is .257, so follow the guides regarding rooting .257, or if you're savvy, install a .534 kernel, root with Kingo, install a .257 kernel again, then OTA)
https://mega.co.nz/#!WkolCYjB!IIXR5SgAn-J05MXmG26GYyi2P2sYcF34Avn73z5Y9n0
It is incorrectly named Generic SE, but it is the right customisation ID for Generic NCB (1276-9897).
Code:
Rekoil said:
Here's a link to the correct FTF (note that it is .257, so follow the guides regarding rooting .257, or if you're savvy, install a .534 kernel, root with Kingo, install a .257 kernel again, then OTA)
It is incorrectly named Generic SE, but it is the right customisation ID for Generic NCB (1276-9897).
Click to expand...
Click to collapse
Hi guys!
Thanks for ur fast answer two last questions if I want to keep all my data and apps whats the ebst way to keep them or transfer a backup? And what is the right rooting methode for the 257. I can flash it without any kernel problems?I wanted to do the one click root methode with kingo I thought it s just plug and root( doens it root allkernels?) did tht last time....
Thanks again!!!
johnnydrift said:
Code:
Hi guys!
Thanks for ur fast answer two last questions if I want to keep all my data and apps whats the ebst way to keep them or transfer a backup? And what is the right rooting methode for the 257. I can flash it without any kernel problems?I wanted to do the one click root methode with kingo I thought it s just plug and root( doens it root allkernels?) did tht last time....
Thanks again!!!
Click to expand...
Click to collapse
Sony PC Companion can make a backup for you, I don't know how much will be saved as in order to flash a 4.2.2 ROM you'll need to wipe your data partition.
johnnydrift said:
Thanks for ur fast answer two last questions if I want to keep all my data and apps whats the ebst way to keep them or transfer a backup? And what is the right rooting methode for the 257. I can flash it without any kernel problems?I wanted to do the one click root methode with kingo I thought it s just plug and root( doens it root allkernels?) did tht last time....
Click to expand...
Click to collapse
257 can't be rooted manually, only 534 can be rooted by vRoot/Kingo/etc.
Since you are downgrading, you must wipe data and will lose everything you don't copy off the phone.
xasbo said:
257 can't be rooted manually, only 534 can be rooted by vRoot/Kingo/etc.
Since you are downgrading, you must wipe data and will lose everything you don't copy off the phone.
Click to expand...
Click to collapse
So I have to get the 534 ftf generic or nordic do a backup with Sony companion before.flash the 534 root it and let it do ota twice to 257 and then to 290 again ota and I ll keep the root.
johnnydrift said:
So I have to get the 534 ftf generic or nordic do a backup with Sony companion before.flash the 534 root it and let it do ota twice to 257 and then to 290 again ota and I ll keep the root.
Click to expand...
Click to collapse
No, it's not possible to upgrade 257/290 and keep root. You asked about downgrading, not rooting 290. If you have an unlocked BL, go read the dev thread on how to root 290. With a locked BL, you'll need to get rooted 534/257 and then flash a custom pre-rooted ROM from the dev forum.
General: http://forum.xda-developers.com/showthread.php?t=2440565
290 pre-root options: http://forum.xda-developers.com/xperia-z1/development
unlock BL 290 root: http://forum.xda-developers.com/showthread.php?t=2573921
xasbo said:
No, it's not possible to upgrade 257/290 and keep root. You asked about downgrading, not rooting 290. If you have an unlocked BL, go read the dev thread on how to root 290. With a locked BL, you'll need to get rooted 534/257 and then flash a custom pre-rooted ROM from the dev forum.
General: http://forum.xda-developers.com/showthread.php?t=2440565
290 pre-root options: http://forum.xda-developers.com/xperia-z1/development
unlock BL 290 root: http://forum.xda-developers.com/showthread.php?t=2573921
Click to expand...
Click to collapse
Actually with OTA you keep semi-root, but in essence you're right. Actually I think the easiest solution is to flash a stock .534 ROM, root it with Kingo, grab TA partition backup, flash .290, unlock bootloader, flash a recovery, do a proper root, reflash stock boot partition, flash TA backup.
Rekoil said:
Actually with OTA you keep semi-root, but in essence you're right. Actually I think the easiest solution is to flash a stock .534 ROM, root it with Kingo, grab TA partition backup, flash .290, unlock bootloader, flash a recovery, do a proper root, reflash stock boot partition, flash TA backup.
Click to expand...
Click to collapse
Yeah, true, I've just stopped telling people about partial root since full root is possible. Those who don't know to ask don't know what it means anyway, and it's just simpler for everyone involved to leave it out.
how to guide
Hey guys thanks for the answers.I really don't want to unlock the bootloader is there any other way to get root on 4.3 and what would be the steps thank you!!!
johnnydrift said:
Hey guys thanks for the answers.I really don't want to unlock the bootloader is there any other way to get root on 4.3 and what would be the steps thank you!!!
Click to expand...
Click to collapse
Are you joking? We already told you what you have to do but I think you didn't read a word from all the post because you will know something now.
I posted this already here and this is Root and Custom Rom for Locked Bootlader Step by Step Guide, Page 2, Post #16, Here
Android 4.3 FTF .290 Root only for Locked Bootlader, Here

<SOLVED>[Q] TA backup with firmware 14.3.A.0.683 (Sony Xperia Z1 C6903)

Hi,
I'm trying to backup the TA on my Xperia Z1 (C6903) running the stock KitKat firmware (14.3.A.0.681). From what I understand though, you need root to backup the partition, but to get root, you need an unlocked boot loader. I've seen a few tools that roots without unlocking the boot loader, but I need to downgrade the firmware to at least Android 4.2.2. Downgrading requires an unlocked boot loader.
Are developers working on a root-and-unlock tool for 14.3.A.0.681? Is there already a tool out there?
Thanks in advanced. Sorry for my arrogance.
kentexcitebot said:
Hi,
I'm trying to backup the TA on my Xperia Z1 (C6903) running the stock KitKat firmware (14.3.A.0.681). From what I understand though, you need root to backup the partition, but to get root, you need an unlocked boot loader. I've seen a few tools that roots without unlocking the boot loader, but I need to downgrade the firmware to at least Android 4.2.2. Downgrading requires an unlocked boot loader.
Are developers working on a root-and-unlock tool for 14.3.A.0.681? Is there already a tool out there?
Thanks in advanced. Sorry for my arrogance.
Click to expand...
Click to collapse
You do not need an unlocked bootloader to get root and or to downgrade. Although yes, you would have to downgrade to 4.2 to get root. Just use flashtool to downgrade and pick a software to root
Ahki767 said:
You do not need an unlocked bootloader to get root and or to downgrade. Although yes, you would have to downgrade to 4.2 to get root. Just use flashtool to downgrade and pick a software to root
Click to expand...
Click to collapse
Cool
Just a couple more questions. Any suggested 4.2.2 and 4.4.2 firmwares to flash (if you can, link them here)? To root 4.2.2, do I simply click on the unlock icon shown in link?
i.imgur.com/VUs5Ele.png
kentexcitebot said:
Cool
Just a couple more questions. Any suggested 4.2.2 and 4.4.2 firmwares to flash (if you can, link them here)? To root 4.2.2, do I simply click on the unlock icon shown in link?
i.imgur.com/VUs5Ele.png
Click to expand...
Click to collapse
Just grab the ftf's for your device here and proceed to follow the guides
Ahki767 said:
Just grab the ftf's for your device here and proceed to follow the guides
Click to expand...
Click to collapse
I've used vroot 1.7.3 english and everything installed fine. However, when I installed the Root Checker app from Google play it reads "Sorry, this device isn't properly rooted."
Here's what I did / planning, in order:
1) Downloaded C6903 14.3.A.0.681 Global 1277-2880_R5C
2) Downloaded 14.1.G.1.534 downgrade FTF [NUT]
3)Pasted the 2 FTFs in the Firmware Folder under Flashtool
4)Flashed 14.1.G.1.534 downgrade FTF [NUT] using Flashtool from Androxyde (latest version)
5)Installed vroot English (1.7.3)
6)Clicked on the Root button. Phones reboots twice
7)After phone first start I was greeted with an error message from "Kingsapp".
8)Installed Root Checker from Google Play
9a)"Not properly rooted" <-- I'm right here
9b)If "root successful", proceed to flash C6903 14.3.A.0.681 Global 1277-2880_R5C
I did some research and people are pointing everywhere, vroot, bin4ry's rooting method, 360 (can't install).
Did I lose my TA partition? My X-Reality goodies?
What am I doing wrong?
kentexcitebot said:
I've used vroot 1.7.3 english and everything installed fine. However, when I installed the Root Checker app from Google play it reads "Sorry, this device isn't properly rooted."
I did some research and people are pointing everywhere, vroot, bin4ry's rooting method, 360 (can't install).
Did I lose my TA partition? My X-Reality goodies?
What am I doing wrong?
Click to expand...
Click to collapse
Okay so now you are still on .534 firmware right? Do you have usb debugging on?
And also try rooting with bin4ry if vroot doesn't work for you.
Don't worry, you won't lose x-reality unless you've unlocked your bootloader
Ahki767 said:
Okay so now you are still on .534 firmware right? Do you have usb debugging on?
And also try rooting with bin4ry if vroot doesn't work for you.
Don't worry, you won't lose x-reality unless you've unlocked your bootloader
Click to expand...
Click to collapse
"Su upgrade failed. Missing root permission"
Yes, I'm on the .534 firmware. USB Debug turned on.
I'll try bin4ry's root now.
Once I'm through TA backup, I just need to flash 14.3.A.0.681 Global 1277-2880_R5C?
kentexcitebot said:
"Su upgrade failed. Missing root permission"
Yes, I'm on the .534 firmware. USB Debug turned on.
I'll try bin4ry's root now.
Once I'm through TA backup, I just need to flash 14.3.A.0.681 Global 1277-2880_R5C?
Click to expand...
Click to collapse
If you still can't get root, try using nuts z1-lockdualrecovery installer and after flash nuts .681
Ahki767 said:
If you still can't get root, try using nuts z1-lockdualrecovery installer and after flash nuts .681
Click to expand...
Click to collapse
I was able to root and deodex the Kitkat rom. Xreality and other goodies working just fine.
Thanks so much Thread Solved.
+1

[Q] Rooting z1 c6902- INDIAN version .757

I have just purchased xperia z1 and has updated it to latest .757 and wants to root my mobile. May be this type of questions are already posted but i find some questions in my mind before rooting so I want too clear it out so that i may not be left with a bricked device
1. can the c6903 firmware be flashed on my c6902 without any problem ( such flash was not applicable on my galaxy ace and there was no any correct way, you are left with a bricked device, but I see only c6903 threads)
2. if so , can i flash the link of ftf on NUT thread (it is c6903 ftf----- else i have to go to ftf mega collection and flash c6902 IN ftf?
3. can the flash tool unlock and lock bootloader so that i get my warranty again ( will i loose root after locking bootloader ?)
4. does unlocking bootloader crashes camera? ( i think i read months before that 20,7 mp stop working)
5. if unlocking bootloader crashes camera shall i install Z1-lockeddualrecovery2.7.123-BETA.flashable.zip (8.47MB) from this site http://nut.xperia-files.com/ from flashtool ... if so plz tell how ..
6. how can i relock bootloader, if i unlock it?
7. what flashiing ftf withou ta means?
8. does flashing kernel, recovery and ftf are same ways i.e just put them in flashtool/firmware path and use "flash" button and follow flashing..(please do elaborate here, if u can add pics thanks). I read the noobs guide but it was for xperia x10.
9. After rooting-- flashing recovery-- all i have to do is wipe data, dalvik cache and install rom
10. i also got my back glass cracked due to my phone getting placed under my bed table while studying... i read many T&C of accidental warranty policy,, so is this reason a valid reason to get warranty,, how much will be the cost of changing back glass as accidental warranty is only 1 time useable..
At last thanks for giving your precious time and clearing my doubts
http://forum.xda-developers.com/showthread.php?t=2261606 -using this page for xz dual recovery install
what does this line of the section means????
""
When installing custom ROMs:
Be sure to flash XZ/ZL/TabZ/Z1/ZU-lockeddualrecovery[VERSION]-BETA.flashable.zip from http://nut.xperia-files.com after installing the ROM and before you reboot, this way you will not lose recovery!
""
Follow the link in my signature
gregbradley said:
Follow the link in my signature
Click to expand...
Click to collapse
I followed ur link...
as i downgraded to .534 IN ftf i lost my IMEI...
installing rom aur i got stuck in bootloop
I again flashed .534 ftf by flashtool but i am not able to get my imei back...
what to do now
Well I also lost imei when I flashed c6902. 534 ftf IN version from mega site. I want to downgrade to 4.2.2 as I am experiencing severe battery drain on. 757 c6902 IN version.
Sent from my C6902 using Tapatalk
Aj.GaLaxY aCE said:
I followed ur link...
as i downgraded to .534 IN ftf i lost my IMEI...
installing rom aur i got stuck in bootloop
I again flashed .534 ftf by flashtool but i am not able to get my imei back...
what to do now
Click to expand...
Click to collapse
carry on with the process
Once you upgrade to a prerooted 757 you will get your imei back

[Q] Questions on rooting my Z1

Hey guys! Just bought brand new Xperia Z1 10 days ago! I LOVE my new phone but I really need to root it to have access to my game files and bypass the restriction on apps on SD card. Still a noob about rooting so I've read several guides in here, all are very useful and answered many of my questions/confusions.
Btw, my Z1 is C903 model, running 4.4.2 KitKat, on firmware 14.3.A.0.757. I've checked and it's not rooted (obviously) and its bootloader is locked but unlocking is allowed. Now the questions:
1. I just want to root my Z1 for now. Is it possible to root it WITHOUT downgrading my firmware OR unlocking the bootloader? That is I don't want to downgrade nor unlock the bootloader, IF possible.
2. If the above is not possible and I need to downgrade it first no matter what, is it totally safe to root it without risk of bricking it and no further issue will arise (camera not working, etc)? Just assume everything is done correctly using krabappel2548's guide. Would be nice if anyone with same phone spec can confirm on this.
The idea is to root my Z1 first so that I can backup my TA partition. After that, I won't mind unlocking the bootloader and willing to try some custom ROMs later. Thanks in advance for any help regarding this!
velve86 said:
1. I just want to root my Z1 for now. Is it possible to root it WITHOUT downgrading my firmware OR unlocking the bootloader? That is I don't want to downgrade nor unlock the bootloader, IF possible.
Click to expand...
Click to collapse
Not possible
2. If the above is not possible and I need to downgrade it first no matter what, is it totally safe to root it without risk of bricking it and no further issue will arise (camera not working, etc)? Just assume everything is done correctly using krabappel2548's guide. Would be nice if anyone with same phone spec can confirm on this.
The idea is to root my Z1 first so that I can backup my TA partition. After that, I won't mind unlocking the bootloader and willing to try some custom ROMs later. Thanks in advance for any help regarding this!
Click to expand...
Click to collapse
Just follow the link in my signature
3 simple steps and do not follow the outdated guide by krabappel. Also, DO NOT USE VROOT to root it. It send your IMEI number to an IP address in china
velve86 said:
1. I just want to root my Z1 for now. Is it possible to root it WITHOUT downgrading my firmware OR unlocking the bootloader? That is I don't want to downgrade nor unlock the bootloader, IF possible.
Click to expand...
Click to collapse
No.
velve86 said:
2. If the above is not possible and I need to downgrade it first no matter what, is it totally safe to root it without risk of bricking it and no further issue will arise (camera not working, etc)? Just assume everything is done correctly using krabappel2548's guide. Would be nice if anyone with same phone spec can confirm on this.
The idea is to root my Z1 first so that I can backup my TA partition. After that, I won't mind unlocking the bootloader and willing to try some custom ROMs later. Thanks in advance for any help regarding this!
Click to expand...
Click to collapse
Use latest Flashtool and Downgrade to .534, provided by NUT, Install DualRecovery, Upgrade to pre-Rooted .757. Done.
Easy and safe, just follow the instructions. Now you can Backup TA and Unlock Your Bootloader.
---------- Post added at 03:36 PM ---------- Previous post was at 03:35 PM ----------
@gregbradley...Damn...you are too fast, you was not there yet when I started typing...XP
gregbradley said:
Not possible
Just follow the link in my signature
3 simple steps and do not follow the outdated guide by krabappel. Also, DO NOT USE VROOT to root it. It send your IMEI number to an IP address in china
Click to expand...
Click to collapse
eclyptos said:
No.
Use latest Flashtool and Downgrade to .534, provided by NUT, Install DualRecovery, Upgrade to pre-Rooted .757. Done.
Easy and safe, just follow the instructions. Now you can Backup TA and Unlock Your Bootloader.
Click to expand...
Click to collapse
Got it. Thanks for the fast replies guys! Seem those are the best way to proceed. And thanks for the heads up about VRoot! :good:
Will try to root my Z1 tomorrow. I'll update on the result.
Hey guys! I'm ready to do this. Just done downloading all the required files today. Made backups of my data, saved in SD card. Installed flashtool 0.9.16.0 and its drivers. Device connected and recognized.
Now to flash the .534 firmware. Just done downloading it from here but just noticed that the file is of *.zip extension instead of FTF (prolly because I used direct download instead of torrent).
So how do I proceed with this? Flash it like flashing FTF file as well?
velve86 said:
So how do I proceed with this? Flash it like flashing FTF file as well?
Click to expand...
Click to collapse
Try to download from different source. It have be FTF extension. ZIP extension can be changed to FTF but many reported it will not work doing that. Try and let us know.
I did it guys! :victory: Successfully downgraded to 14.1.G.1.534 [NUT], installed XZDualRecovery v2.7.123 BETA and then upgraded to pre-rooted 14.3.A.0.757 [NUT]! Stuck a bit at the middle but I did it! Now I have root access and my Z1 bootloader is still intact! It took me ~2 hours to complete everything last night.. :laugh:
I'll post a detailed logs of what I did later, just for future reference and for others with same phone spec. And thanks again gregbradley and eclyptos for the help!
As promised, the detailed logs. Just for reference for others like me that are still noob about all this.
My phone spec: Xperia Z1 C6903, running 4.4.2 KitKat, on firmware 14.3.A.0.757 (no root, locked bootloader).
Guides used:
-Root, Backup TA, Unlock bootloader and more! The ultimate Xperia Z1 guide
-[25NOV][FLASHTOOL GUIDE] HOW TO for n00bies - G-FACE GUIDE
-[STOCK][C69XX][4.4] Update to 14.3.A.0.757 [Root & XZDR][DE-/ODEX]
-[DEVDB][TWRP][PhilZ Touch][CWM] XZDualRecovery 2.7.1XX RC
Preparation:
-Installed adb and USB driver (from Android SDK), Flashtool 0.9.16.0
-Phone charged to 90%+, enabled USB debugging, stay awake while charging
-Downloaded all required files (C6903_14.1.G.1.534_NUT.zip, C6903_14.3.A.0.757.flashable.zip, C6903_14.3.A.0.757_Stripped.zip, Z1-lockeddualrecovery2.7.123-BETA.installer.zip)
-Made backup for all my data including apps using Backup & Restore, saved into SD card
And here's the step-by-step of what I did:
1. Preparing 14.1.G.1.534 firmware
-copied C6903_14.1.G.1.534_NUT.zip into "C:\Flashtool\firmwares\"
-changed the extension from *.zip to *.ftf (C6903_14.1.G.1.534_NUT.zip --> C6903_14.1.G.1.534_NUT.ftf) for it to be recognized by Flashtool
-already flashed this firmware when I read eclyptos' suggestion to change the extension, so I hereby confirm that it's working!
***NOTE: Downgrading to .534 wiped out my data on internal storage (not SD card content though). Didn't know that, thought only unlocking bootloader does - good thing I've made backup of all my data beforehand.***
2. Flashing C6903_14.1.G.1.534_NUT.ftf using Flashtool
-just followed instructions on Flashtool, turned off my phone, unplugged from USB, then connected again in flashmode (using instruction in guide)
-flashing started automatically once it's connected in flashmode
-flashing done, phone turned off automatically, unplugged from USB, turned it on
-phone now on JB 4.2.2 with .543 firmware but no root access (verified with Root Checker)
3. Installing XZDualRecovery and root access
-extracted Z1-lockeddualrecovery2.7.123-BETA.installer.zip, ran install.bat, chose option 3 (installation on unrooted ROM)
-once done, phone rebooted automatically into default recovery (PhilZ Touch), chose "Reboot Now" with 2nd option to install root access (SuperSU)
-rebooted, phone now has root access (verified with Root Checker), with BusyBox v1.20.2-jb "static (2012-11-25 17:47 +0100) multi-call binary" (wasn't sure if required to have root before upgrading but tried it anyway)
4. Preparing to upgrade to 14.3.A.0.757
-copied C6903_14.3.A.0.757.flashable.zip into SD card, C6903_14.3.A.0.757_Stripped.zip into "C:\Flashtool\firmwares\"
-changed primary recovery to TWRP using NDR Utils app (pre-installed in .543), tried to reboot into recovery but reboot not working (nothing happens)
-rebooted into recovery again using adb command line ("adb reboot recovery") - Google FTW!
-rebooted into TWRP recovery
5. Flashing C6903_14.3.A.0.757.flashable.zip using TWRP
-on TWRP, chose Install, navigate and chose the file
-tried with zip file signature verification, failed
-tried again, without signature verification (MD5 check), successful
-firmware update started, took a while and done successfully!
-DID NOT REBOOT (as per instruction in guide), back to Home->Reboot->Power off, unplugged phone from USB, turned on phone
6. Flashing C6903_14.3.A.0.757_Stripped.ftf using Flashtool
-connected to USB, renamed C6903_14.3.A.0.757_Stripped.zip to C6903_14.3.A.0.757_Stripped.ftf, started Flashtool
-flashed everything in the FTF just like in step 2, phone turned off automatically once done, unplugged from USB
7. Verifying upgrade
-Phone turned on, Android is upgrading, optimized apps, etc
-Phone now back to 14.3.A.0.757 firmware but has ROOT access using SuperSU (verified with Root Checker), with bootloader still locked!
Will backup my TA partition later, but I'll just leave the bootloader locked for now. Restored my backup, checked and re-configured certain apps settings, no weird behavior so far, camera and wireless also working fine!
That's about it. Hope this log will help others to have root on their Z1 of same spec. Good luck!
I was a bit confused with the firmware you flashed, since it said it required 0.681. But like i read it now, you can just flash the .757 over the .534 right? Good info, thanks!
saintgein said:
I was a bit confused with the firmware you flashed, since it said it required 0.681. But like i read it now, you can just flash the .757 over the .534 right? Good info, thanks!
Click to expand...
Click to collapse
Yup
From 534 you can flash 757 firmware from recovery and use flashtool to flash 757stripped tft (kernel).
Sent from my C6903 using XDA Free mobile app

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