Does anyone know if it is possible to downgrade the firmware on a sony Z2? my phone was replaced at the sony centre and i have been given one with a newer firmware to the one supported by root (non bootloader unlock).
If it is possible, how do i do so?
A|ex said:
Does anyone know if it is possible to downgrade the firmware on a sony Z2? my phone was replaced at the sony centre and i have been given one with a newer firmware to the one supported by root (non bootloader unlock).
If it is possible, how do i do so?
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Yes. Just download the appropriate firmware (make sure the model number e.g. D6503 is the same as your phone) and use Flashtool. Search the forums on how to use Flashtool to flash firmwares (plenty of guides).
Thanks for the reply, i was trying to look for the sticky with this information in rather than jumping around looking firstly trying to find a location for the flashtool and second the firmware repo to download from.
I did a search but there is all sorts on here
Related
Hello XDA Community
I seek a small bit of help if you could please help
I have a Sony Xperia Z Ultra o2
Model number C6833
Build number 14.1.B.1.510
I read here and noticed other user have managed to flash there devices to stock unbranded aka no bloatware which my phone is full of sadly
can anyone confirm if this will work as in if i were to flash this will this be the unbranded rom file i am looking for?
http://forum.xda-developers.com/showthread.php?t=2446525
I am very confused as i am used to Google Nexus and Samsung Galaxy devices...Sony is like new territory for me lol
guess what i am after is flashing my phone with the international unbranded rom if thats available anywhere and how do i flash it with which program etc etc
i know samsung devices used to use odin and stuff like that but thats a different ball game i guess
look forward to receiving your help
i've spend the last couple of hours trying to unlock the bootloader, root using vroot and i cant get anything working
i used vroot and got to the step of installing super su but it wouldn't update the binaries and even after reboot still wouldn't...i tried countless of times using this chinese tool but its useless unless theres a youtube video to follow
please can someone help me out i really wanna get my phone rooted and flash it with unbranded carrier free international rom
i dont think flashing unbranded firmware needs root. correct me if i wrong.
Grab the tool here
HTML:
http://forum.xda-developers.com/showthread.php?t=2428319
and the firmware here
HTML:
https://docs.google.com/file/d/0Bzddg8fRvBuQekFJTG9LOF8xbVE
just follow the instructions on the first link. i dont think u will encounter any problem. i tried the firmware on my c6802 with no problem.
NeOCzx said:
i dont think flashing unbranded firmware needs root. correct me if i wrong.
Grab the tool here
HTML:
http://forum.xda-developers.com/showthread.php?t=2428319
and the firmware here
HTML:
https://docs.google.com/file/d/0Bzddg8fRvBuQekFJTG9LOF8xbVE
just follow the instructions on the first link. i dont think u will encounter any problem. i tried the firmware on my c6802 with no problem.
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Click to collapse
Sorry mate did you say you flashed the 4g lte 6833 software on to the 6802 device
hello i am seeing everyone here got their m4 aqua upgraded to android 6.0, although when i go to software update on my
m4, it says it already has the most recent update. and i only have android lollipop 5.0.
Is there a way to upgrade it to 6.0 without voiding my warranty?
flash with flashtool
Siea Group said:
flash with flashtool
Click to expand...
Click to collapse
can you give me a tutorial or something? i'm not sure how to do this.
also won't this void my warranty?
Hello,
The official update is only available through Xperia Companion.
Alternatively, you can update the unofficial way by flashing through flashtool.
So just to make things clear: a computer is required to update your phone.
Concerning the warranty: you won't void it unless you unlock your bootloader (and flashing an official firmware, even from an unofficial tool like flashtool does not require to unlock it).
I would advise you to go the official way (update with Xperia Companion).
Regards
WormsWarII said:
Hello,
The official update is only available through Xperia Companion.
Alternatively, you can update the unofficial way by flashing through flashtool.
So just to make things clear: a computer is required to update your phone.
Concerning the warranty: you won't void it unless you unlock your bootloader (and flashing an official firmware, even from an unofficial tool like flashtool does not require to unlock it).
I would advise you to go the official way (update with Xperia Companion).
Regards
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the problem is that it says i already have the most recent android system on sony app.
also i don't know how to upgrade this
go to xpericheck.com and search your device. the latest is 26.3.A.1.33, if your device listed there with the latest software i think you should flash it using flashtool. and if you wish to upgrade using official method, try to factory reset your phone and try again using xperia companion.
Extra! look at Diagnostics. if there any information about Software Update available, you can use your xperia companion. and sorry for my bad english. good luck
As I understand it, I don't need to unlock the bootloader in order to flash different official firmware versions to my phone. I'm leaving the bootloader locked until I really have a need to unlock it, because of the long-shot hope for a root exploit that will let me preserve my TA partition. As part of that, I really don't want to be stuck on a recent firmware version with all the old security holes patched. Therefore I want to get ahold of my current firmware or earlier before I flash anything. Somebody stop me here if I've misunderstood and anything I've said so far is impossible.
I have the dual-sim variant, G8342, running firmware 47.1.A.2.324.
Question 1: Is there a source somewhere of archived XZ1 firmware versions that includes 47.1.A.324 or earlier? I have searched the forum and google, but most xperia firmware backup sites have little or no files for the XZ1, and the couple of sources I've found are ancient with broken links. The post on these forums with stock firmware downloads only includes much newer versions.
Question 2: Is there a way I can extract a copy of my current firmware from my phone, without unlocking the bootloader? I find tutorials that work for "any xperia", but they're all quite old and talk about Sony PC Companion instead of Xperia Companion, and they all involve clicking "Your software is up to date"--and my software is not up to date, and updating it before backing it up would defeat the entire purpose of backing it up.
I'd greatly appreciate it if someone could clarify this for me so I can flash new firmware without losing the ability to go back.
Hi there, sorry i can't help you with your questions. I have one more question actually. are you sure i don't have to unlock bootloader if i flash official stock firmware??
Opposite to you, i'm stuck with a really old build from 2017. my phone is xz1 and its build version is 47.1.A.2.374. android security patch is from october 2017 and i desperately want to update the newest firmware yet i'm always told that my firmware is lastest.
sooo, am i able to flash it with the flashtool or newflasher?/
thank you
xperia_sony_best said:
Hi there, sorry i can't help you with your questions. I have one more question actually. are you sure i don't have to unlock bootloader if i flash official stock firmware??
Opposite to you, i'm stuck with a really old build from 2017. my phone is xz1 and its build version is 47.1.A.2.374. android security patch is from october 2017 and i desperately want to update the newest firmware yet i'm always told that my firmware is lastest.
sooo, am i able to flash it with the flashtool or newflasher?/
thank you
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Click to collapse
Seems highly unlikely that you haven't received an update since 2017 but then stranger things have happen.. New phone, carrier branded hmm..
Have you tried to update with Sony Companion, use the software update on the phone its self..
Oh and yes you can use the other methods you have mentioned..
lilbrat said:
Seems highly unlikely that you haven't received an update since 2017 but then stranger things have happen.. New phone, carrier branded hmm..
Have you tried to update with Sony Companion, use the software update on the phone its self..
Oh and yes you can use the other methods you have mentioned..
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Click to collapse
thanks god i found a solution for this.
Repair my phone using xperia companion.
it's basically like flashing my phone and update my firmware to the latest firmware which is 47.1.A.16.20
Thanks God (or curious me )
either way, i found a way to update my phone without using flashtool. hope this will help someone in the future
Check here:
https://drive.google.com/drive/folders/1Yu3WP7yiO3TJuEiQvhEQ-zq53LcPdYIU
Thanks a ton, lionelbac! For anyone else who comes across this thread, there's now also a download of 47.1.A.2.281_CE1 available in j4nn's magnificent TA partition backup thread, since that firmware is necessary for his exploit to work: https://forum.xda-developers.com/xperia-xz1-compact/development/devonly-exploits-temp-root-to-backup-t3795510
lionelbac said:
Check here:
Where to find old firmware for xz1 g8341 customized CH?
thank!
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Click to collapse
willynguyen said:
lionelbac said:
Check here:
Where to find old firmware for xz1 g8341 customized CH?
thank!
Click to expand...
Click to collapse
No idea, I found that site googling.. Somewhere in the web could be another repository for your version. Good luck!
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Hi everyone,
I recently flashed my G8342 to another region android 8.0 (yes, downgrade) through flashtool.
The ftf files that i downloaded is not come from XperiaFirm, since there is no way to download old firmware from official sony website for this device.
In this case, is the device still safe ? I did not unlock any bootloader or rooting the device.
Thank you.
You should be fine...
tomcheng76 said:
Hi everyone,
I recently flashed my G8342 to another region android 8.0 (yes, downgrade) through flashtool.
The ftf files that i downloaded is not come from XperiaFirm, since there is no way to download old firmware from official sony website for this device.
In this case, is the device still safe ? I did not unlock any bootloader or rooting the device.
Thank you.
Click to expand...
Click to collapse
Hi.
Flash firmware via newflasher or flashtool won't change status of bootloader,and device after Xperia XZs can't relock the bootloader.
Don't be afraid, your device is still safe.
Hi all,
I wanted to flash a newer android 13 stock firmware because my Sony from a UK operator doesn't get the OTA update.
I have the firmware from XperiFirm and made the ftf with flashtool. Just before I was about to get if flashed I was reading comment saying this tool is not good anymore, but I am not 100% sure how to use the Newflasher instead.
Could someone help me on that?
I don't really want to brick my phone and if it's not a safe way to get android 13 I might just don't do it.
Cheers.