Downgrade to O - Sony Xperia XZ2 Questions & Answers

Hi guys,
I want to downgrade to O after upgrade to P. Is there any way that I can without rooting or unlock the bootloader?
Thanks!

silveraero said:
Hi guys,
I want to downgrade to O after upgrade to P. Is there any way that I can without rooting or unlock the bootloader?
Thanks!
Click to expand...
Click to collapse
Impossible.... idk but maybe if u use the software flash other fw from UK or Asia....

ken_e1407 said:
Impossible.... idk but maybe if u use the software flash other fw from UK or Asia....
Click to expand...
Click to collapse
Ya, the old days with xperia X10 it was easy, just use flashtool. Now it's hard

silveraero said:
Hi guys,
I want to downgrade to O after upgrade to P. Is there any way that I can without rooting or unlock the bootloader?
Thanks!
Click to expand...
Click to collapse
Grab my dual sim stock firmware version from the TWRP thread and flash it with newflasher v13.
It will wipe/factory reset your userdata.
But that is needed or you will receive a bootloop.

Related

[Q] [REQ] ROOT TX 9.1.B.1.67 on locked bootloader

the new firmware of TX, 9.1.b.1.67 has been released
but the previous root methods are no longer available
i hope it could be rooted soon
request from all TX LB users, THANKS
:laugh::laugh::laugh:
Leo said:
the new firmware of TX, 9.1.b.1.67 has been released
but the previous root methods are no longer available
i hope it could be rooted soon
request from all TX LB users, THANKS
:laugh::laugh::laugh:
Click to expand...
Click to collapse
long time and no reply from a dev, seems like the firmware is a no-go-to-root-for-ever
ebi4321 said:
long time and no reply from a dev, seems like the firmware is a no-go-to-root-for-ever
Click to expand...
Click to collapse
an excellent firmware without root permission
it cant be more disappointed
Leo said:
the new firmware of TX, 9.1.b.1.67 has been released
but the previous root methods are no longer available
i hope it could be rooted soon
request from all TX LB users, THANKS
:laugh::laugh::laugh:
Click to expand...
Click to collapse
From your signature you have an unlocked bootloader. So just flash doomkernel and a root package and you will have root......
RootPackage-gregbradley.zip - 1.75 MB
PS, I have to ask why did you unlock your bootloader if you didn't know this?
gregbradley said:
From your signature you have an unlocked bootloader. So just flash doomkernel and a root package and you will have root......
RootPackage-gregbradley.zip - 1.75 MB
PS, I have to ask why did you unlock your bootloader if you didn't know this?
Click to expand...
Click to collapse
though ive unlocked the BL
but i restored the TA.img so im locked BL now..
im not going to unlock again these days
Leo said:
though ive unlocked the BL
but i restored the TA.img so im locked BL now..
im not going to unlock again these days
Click to expand...
Click to collapse
ok, so sony have already voided your warrenty....why not unlock to get root?
Hi all
anyone have a global version of this FW ? because my TX not from HK
devilmaycry2020 said:
Hi all
anyone have a global version of this FW ? because my TX not from HK
Click to expand...
Click to collapse
it's not obligatory to have a Hong Kong version of phone to flash a Hong Kong firmware, I have global phone but i've install this firmware, and it works perfectly, but if you want root, you need to have unlocked bootloader, BY THE TIME BEING the ROM is not rootable with locked bootloader...
but if you don't care about root, flash this firmware via flashtools, and it won't bring any problem

[Q] Problem in rooting 4.4.2

I have an Xperia Z.Recently I flashed it with 4.4.2(still this update is not available in my place .so i downloaded the FTF file and flashed it).I am not very much impressed with the performance :crying: .First the lagging,next the battery drain caused by the google play services .Now I want to root my Z.Doomlord's method(http://forum.xda-developers.com/xperia-z/development/cwm-based-recovery-6-0-4-5-xperia-z-t2167381) requires us to unlock the bootloader.But I don't want to lose my BE2 again(I had previously lost it before 6 months by unlocking the BL).so i decided to backup my TA partition using this method(http://forum.xda-developers.com/showthread.php?t=2292598).But this one also requires root.so plz suggest me an idea to root my device without losing the be2.
Good question you've made, i hope DoomLord will answer fast. I still afraid root my 4.4.2
Only method...
Flash stock. 67 firmware,root it,backup ta,...unlock BL,flash 4.4,follow doom steps
Congrats
Sent from my C6602 using Tapatalk
Aka91 said:
Only method...
Flash stock. 67 firmware,root it,backup ta,...unlock BL,flash 4.4,follow doom steps
Congrats
Sent from my C6602 using Tapatalk
Click to expand...
Click to collapse
So the BL stays unlocked even after flashing an updated or downgraded version of android???
No need to unlock bootloader.
Just flash stock 67 firmware as mentioned, root it and get dualrecovery for it and then flash stock based 4.4.2 and Supersu fix with recovery, shut phone down from recovery and flash kernel for it. All this info in general and android dev section. I hope you understand what i meant.
Pardon my english.
Lähetetty minun C6603 laitteesta Tapatalkilla
Anyone tried rooting at. 67fw then just allowing ota updates? It's worked for me up to 101, but latest fw isn't available yet for generic UK so I don't know...
Sent from my C6603 using Tapatalk
F4113n said:
No need to unlock bootloader.
Just flash stock 67 firmware as mentioned, root it and get dualrecovery for it and then flash stock based 4.4.2 and Supersu fix with recovery, shut phone down from recovery and flash kernel for it. All this info in general and android dev section. I hope you understand what i meant.
Pardon my english.
Lähetetty minun C6603 laitteesta Tapatalkilla
Click to expand...
Click to collapse
I'll try it ASAP...Thank you for taking ur time to respond me ....
maharoof said:
I'll try it ASAP...Thank you for taking ur time to respond me ....
Click to expand...
Click to collapse
There is plenty of pre-rooted roms already and MINE has FULL ROOT
zippy01 said:
There is plenty of pre-rooted roms already and MINE has FULL ROOT
Click to expand...
Click to collapse
Thanks buddy...I'll download it 2day...
F4113n said:
No need to unlock bootloader.
Just flash stock 67 firmware as mentioned, root it and get dualrecovery for it and then flash stock based 4.4.2 and Supersu fix with recovery, shut phone down from recovery and flash kernel for it. All this info in general and android dev section. I hope you understand what i meant.
Pardon my english.
Lähetetty minun C6603 laitteesta Tapatalkilla
Click to expand...
Click to collapse
As like you said can i flash 4.2.2 then root and install dual recovery after that can i update it to.4.3. 101 via ota from there i can update 4.4.2 through ota right bcoz i hav locked bl.. I and after upgrading to 4.4.2 still i hav root? Will this method work?
Sorrryyyyy for bad english..
Sent from Dragon Xperia Z

Some questions about Android 5 for xperia z

Ok i was wondering.
If I were to upgrade my xperia Z with a locked bootloader to android lollipop 5 (official update confirmed for February)
1. Would u be able to root it?
2.would I be able to downgrade back to KK if I don't like it? (I'm thinking no…)
Info
xdarkmario said:
Ok i was wondering.
If I were to upgrade my xperia Z with a locked bootloader to android lollipop 5 (official update confirmed for February)
1. Would u be able to root it?
2.would I be able to downgrade back to KK if I don't like it? (I'm thinking no…)
Click to expand...
Click to collapse
1. Yes
2. you cannot downgrade to 4.4.4 when upgrade bootloader to 5.0
:good:
xdarkmario said:
Ok i was wondering.
If I were to upgrade my xperia Z with a locked bootloader to android lollipop 5 (official update confirmed for February)
1. Would u be able to root it?
2.would I be able to downgrade back to KK if I don't like it? (I'm thinking no…)
Click to expand...
Click to collapse
1. Always.
2. Yes, I think you can always flash stock ftf of KK and revert back to KK.
mvv1277 said:
1. Always.
2. Yes, I think you can always flash stock ftf of KK and revert back to KK.
Click to expand...
Click to collapse
i hope so because i like the look and features of LP but if i cant root or if something i dont like pushes me to want to downgrade to KK and i cant i dont want to do it. for me to unlock my bootloader would be 90-130$ and i dont have it now.

How to make a rebrand on my P10 8.0

Hi guys, i´m new on the forum, and i need help to change region my VTR-L09C178 to C432 International.
I have seen in the forum some tutorials but they are very old, so in some step skips an error. If anyone can help me please .
i have bootloader unlock, TWRP installed and it´s rooted.
matrixx0497 said:
Hi guys, i´m new on the forum, and i need help to change region my VTR-L09C178 to C432 International.
I have seen in the forum some tutorials but they are very old, so in some step skips an error. If anyone can help me please .
i have bootloader unlock, TWRP installed and it´s rooted.
Click to expand...
Click to collapse
I did it a few weeks ago, but i always failed on Oreo... The best way is downgrade to Nougat an then rebrand, it worked for me on the first try!
stefan.irmen said:
I did it a few weeks ago, but i always failed on Oreo... The best way is downgrade to Nougat an then rebrand, it worked for me on the first try!
Click to expand...
Click to collapse
Do you know how to roll back to Nougat with a locked bootloader and december security patch?
[email protected] said:
Do you know how to roll back to Nougat with a locked bootloader and december security patch?
Click to expand...
Click to collapse
No chance at the moment... Security Patch must be older than August 2018 for getting an Unlock Code...
stefan.irmen said:
I did it a few weeks ago, but i always failed on Oreo... The best way is downgrade to Nougat an then rebrand, it worked for me on the first try!
Click to expand...
Click to collapse
But when i do a downgrade i need the bootloader code to unlock again, right?
matrixx0497 said:
But when i do a downgrade i need the bootloader code to unlock again, right?
Click to expand...
Click to collapse
Yes... You said you have bootloader unlocked - dont you have the unlock code?
stefan.irmen said:
Yes... You said you have bootloader unlocked - dont you have the unlock code?
Click to expand...
Click to collapse
yes, but i didn't do backup of the code because i did on 2017, there's some way to get it back from my smartphone?
matrixx0497 said:
yes, but i didn't do backup of the code because i did on 2017, there's some way to get it back from my smartphone?
Click to expand...
Click to collapse
Aoh, thats sh*t...
No, i dont know a method at the moment, maybe dc unlocker supports reading bootloader code for newer Oreo Builds in the near future...

Root or relock bootloader Xperia xz3

I need help. I unlocked the bootloader of my Xperia xz3 and lost access to Google pay and other services. I wish it was possible to root my phone or block the bootloader again to get everything back to the way it was before. The twrp I'm trying to install does not seem to be compatible with version 52.1.A.3.20 from my cell phone. Does anyone have a compatible twrp?
Att jaks
jaksxp said:
I need help. I unlocked the bootloader of my Xperia xz3 and lost access to Google pay and other services. I wish it was possible to root my phone or block the bootloader again to get everything back to the way it was before. The twrp I'm trying to install does not seem to be compatible with version 52.1.A.3.20 from my cell phone. Does anyone have a compatible twrp?
Att jaks
Click to expand...
Click to collapse
@MartinX3
Could you help me? ♥
jaksxp said:
@MartinX3
Could you help me? [emoji813]
Click to expand...
Click to collapse
The XDA didn't notify me about you mentioning me xD
Please use the newest firmware and twrp
Relocking is not possible with your model
MartinX3 said:
The XDA didn't notify me about you mentioning me xD
Please use the newest firmware and twrp
Relocking is not possible with your model
Click to expand...
Click to collapse
Thank you! Do you know of any TWRP compatible with the latest Xperia xz3 firmware?
jaksxp said:
Thank you! Do you know of any TWRP compatible with the latest Xperia xz3 firmware?
Click to expand...
Click to collapse
You're welcome!
Please try the newest twrp from the XDA thread
MartinX3 said:
The XDA didn't notify me about you mentioning me xD
Please use the newest firmware and twrp
Relocking is not possible with your model
Click to expand...
Click to collapse
Hello again! Would you be able to port the latest TWRP version to the latest Xperia xz3 firmware? Tks!
jaksxp said:
Hello again! Would you be able to port the latest TWRP version to the latest Xperia xz3 firmware? Tks!
Click to expand...
Click to collapse
What exactly doesn't work?
MartinX3 said:
What exactly doesn't work?
Click to expand...
Click to collapse
I'll summarize ... I already have the bootloader unlocked, so I need the following tutorials and files ... Xperia xz3 drivers for the ADB fastboot (H8416) (Akatsuki) TWRP compatible with Xperia xz3, (I don't know if you can install either) an updated tutorial on how to do this safely and Magisk in zip to flash when installing TWRP. With all this, my problems are over because the SafeNet verification will be positive and I will be able to use Google pay again. Here is my thanks for all the attention and it was trusting you that I marked you to help me with all this!
jaksxp said:
I'll summarize ... I already have the bootloader unlocked, so I need the following tutorials and files ... Xperia xz3 drivers for the ADB fastboot (H8416) (Akatsuki) TWRP compatible with Xperia xz3, (I don't know if you can install either) an updated tutorial on how to do this safely and Magisk in zip to flash when installing TWRP. With all this, my problems are over because the SafeNet verification will be positive and I will be able to use Google pay again. Here is my thanks for all the attention and it was trusting you that I marked you to help me with all this!
Click to expand...
Click to collapse
Thank you
The twrp should also worm with the newer firmware
jaksxp said:
I need help. I unlocked the bootloader of my Xperia xz3 and lost access to Google pay and other services. I wish it was possible to root my phone or block the bootloader again to get everything back to the way it was before. The twrp I'm trying to install does not seem to be compatible with version 52.1.A.3.20 from my cell phone. Does anyone have a compatible twrp?
Att jaks
Click to expand...
Click to collapse
how did you unlock the bootloader?
Please can someone tell me if after rooting XZ3 the answering machine still works? And can I change the greeting message? Thank you
bro plz how you unlock the bootloader
you fix flash new rom global or sov39 and temproot and install the modules for bypass
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