[FTF] Xperia Z Ultra 14.1.B.2.257 C6833 Europe/Generic Unbranded - Sony Xperia Z Ultra

Tested: Excellent A+ release, stable and fast. Root: Not "officially" supported yet at 20 october 2013.
FTF Decrypt and upload thanks to Chemcup:
https://mega.co.nz/#!jFMX1bCS!d2kA1AezDnXK6g8ZWrXN2DnLkTExaj9un96P0Dge4nA
I think should work on C6802/6806 as well, maybe something disabled/or/enabled and not usable on the Mobile connection menu, related to LTE/4G band.....
I've tested with success a firmware for C6802 Taiwan (.510) on a European Z Ultra C6833 device. And was working flawless, so i guess this should work on any Ultra.
***I TAKE NO RESPONSABILITY, IF YOU DO NOT OWN A C6833 and flash this on a C6802/6 DO A YOUR OWN RISK.
and beside working, your device may be also recognized as a C6833 after a direct flash of this.
Please follow flashtool guide to flash FTF, and use last version:
Release 0.9.13.0
Available from the developer's site.
http://www.flashtool.net/
General disclaimer: Flashing without Sony Update is a method generally unsupported, and it may void the warranty. So do it on your own risk. If things go wrong, you may try the "repair my phone" option on Sony Pc Companion (PC) / Sony Mac Bridge (MAC). Also, users that do not hurry in updates, may just wait the proper release for their phones to be released into official Sony Xperia channels.
"Ultra"Quick guide on flashing with flashtool (Windows7):
1) Install Sony Pc Companion
2) Install Flashtool (C:Flashtool)
3) Connect your Xperia and check if is recognized by the system by drivers, ok? disconnect.
4) Download the firmware, and copy the .ftf file inside c:flashtool/firmwares
5) From C:Flashtool, run Flashtool.exe in Windows or Flashtool64.exe in Windows x64
6) Choose lightning icon, and choose FLASH
7) Choose the Firmware from the list
8) Wait the program tells is ready to flash
9) Turn off the device and wait 10 secs
10) SIMULTANEOUSLY: Micro usb connect + Volume down

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Hi mate, thanks for this. Could you please share the CDA of your C6833 as well?
Many thanks!

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downle said:
Hi mate, thanks for this. Could you please share the CDA of your C6833 as well?
Many thanks!
Click to expand...
Click to collapse
dont think that .257 will be rootable so fast, will take some time.

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Thanks mate, you could check CDA from about>>diagnose>>device fact and no need to root

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Can you do a zip file as well?

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CDA please. then i can help you download. my connection is way faster than yours

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waveloom said:
Sure, i will let you know when i finished everything, also i dunno if i can still get to system prop without the root and the cheated CDA has been replaced with its original again.
dont think that .257 will be rootable so fast, will take some time.
Click to expand...
Click to collapse
You just need to try and root it through Vroot and check if that still works...
Sent from my C6833 using xda app-developers app

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@ OP:
Did you actually check that FTF chemcup uploaded? he did say e was't sure if he did it right.
Did you try to flash it on your device?
Thanks,

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Hi all, I tried to flash the version, it works excellent, for those who are not comfortable with the FTF, just change youe CDA to:1275-8026 R11A, you will receive the updates from PCC

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Been trying the firmware..
All nasty bugs like phantom clicks, SOD, wifi messed, backlight seems to be gone.
General speed is above good!
I would say A+ for this firmware release.

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Root with 257
I upgraded to 257 and now I can not rooting my ulrtra as I did before with Vroot. What can I do?

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natispain said:
I upgraded to 257 and now I can not rooting my ulrtra as I did before with Vroot. What can I do?
Click to expand...
Click to collapse
So here VROOT 1.7.1 for who want to try:
http://www.mgyun.com/vroot
Also Kingo may work as well.. even if it has been unofficalized from rooting methods due to a fishy acting on network, that may put some adware or similar.. so, use at your own risk, but i managed to root .532 without any flaw.
http://www.kingoapp.com/
downle said:
Hi all, I tried to flash the version, it works excellent, for those who are not comfortable with the FTF, just change youe CDA to:1275-8026 R11A, you will receive the updates from PCC
Click to expand...
Click to collapse
So... you guess that somone not enough confortable with FTF flashing, would be more confortable with root+root explorer+systemprop editing ?

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waveloom said:
So here VROOT 1.7.1 for who want to try:
http://www.mgyun.com/vroot
Also Kingo may work as well.. even if it has been unofficalized from rooting methods due to a fishy acting on network, that may put some adware or similar.. so, use at your own risk, but i managed to root .532 without any flaw.
http://www.kingoapp.com/
So... you guess that somone not enough confortable with FTF flashing, would be more confortable with root+root explorer+systemprop editing ?
Click to expand...
Click to collapse
With Kingo is not posible, I have c6833, with one click root also.
With Vroot also,
I rooted it before with Vroot but now I have that on the scrreen of my phone
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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Well well.. no rooting for now.

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Has anyone tried it on a 6802?
Sent from my C6802 using Tapatalk 4

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djmaxi said:
Has anyone tried it on a 6802?
Sent from my C6802 using Tapatalk 4
Click to expand...
Click to collapse
I've tried the opposite.. a C6802 firmware on a C6833... and it worked fine. (.510)

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Thanks for the FTF mate. Worked flawless.

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Can someone please extract the ftf and share the kernel.sin my Ultra's wifi is f*cked up and im trying to fix it. i have c6802 and its been like this since the OTA for .532 firmware. now i have the latest firmware and i just need the kernel.sin
thanks in advance guys!

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Awesome ftf upgrade. System much stable.
Display I dont see any difference maybe a little bit brighter.
Sent from my C6833 using xda app-developers app

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Used it for 3 hours on the latest. 257 upgrade amd there have been already 2 random reboots. Dont know what the problem is
Sent from my C6833 using xda app-developers app