How to flash back the stock rom - Sony Xperia Z Ultra

Hi, so the curiosity got the best of me and I rooted my Ultra and flashed PAC MAN Rom, only to find out I acually prefered the stock rom. Noob as I am, I'm not sure now how to proceed in getting it back. I'd like to go back to 14.2.A.1.136 stock rom. How does one go on about that? Is it ok to use flashtool and flash 14.2.A.1.136 "Generic GM" ROM that I found online back in? /I'm in UK, but couldn't find any other european version than GM - Germany/. I'm on Z Ultra C6833, rooted with unlocked boot loader. Thanks for advice!

a_hadada said:
Hi, so the curiosity got the best of me and I rooted my Ultra and flashed PAC MAN Rom, only to find out I acually prefered the stock rom. Noob as I am, I'm not sure now how to proceed in getting it back. I'd like to go back to 14.2.A.1.136 stock rom. How does one go on about that? Is it ok to use flashtool and flash 14.2.A.1.136 "Generic GM" ROM that I found online back in? /I'm in UK, but couldn't find any other european version than GM - Germany/. I'm on Z Ultra C6833, rooted with unlocked boot loader. Thanks for advice!
Click to expand...
Click to collapse
yep just flash a FTF. Then when that is done flash a kernel with recovery (using flashtool) Jackies one is good, this will allow you to flash SuperSu update from recovery to get root back.

blueether said:
yep just flash a FTF. Then when that is done flash a kernel with recovery (using flashtool) Jackies one is good, this will allow you to flash SuperSu update from recovery to get root back.
Click to expand...
Click to collapse
Cool thanks! I've read somewhere that after I unlocked the bootloader there will be no bravia engine not even after flashing the original firmware back again? Is that true? Thanks!

You have to have a TA backup to get the DRM keys back to get xreality fully working. There is a thread in the mod section that my work
Sent from my Xperia Z Ultra using Tapatalk

Related

Updating to Dogg Rom v4.3

I come from 4.2 pre-rooted deodexed rom. Can I just flash the zip file of Dogg Rom v4.3 from recovery or do I have to flash. 290 FTF first?
Thanks
--
I posted it here cause apparently after 3 years of being on XDA, I can't post in developer's section, because I never had anything to ask!
Sent from my C6833 using XDA Premium HD app
seltoon said:
I come from 4.2 pre-rooted deodexed rom. Can I just flash the zip file of Dogg Rom v4.3 from recovery or do I have to flash. 290 FTF first?
Thanks
--
I posted it here cause apparently after 3 years of being on XDA, I can't post in developer's section, because I never had anything to ask!
Sent from my C6833 using XDA Premium HD app
Click to expand...
Click to collapse
I have not tried from 4.2 stock, but no harm in trying. Just have the latest flashtool ready and a 290 .ftf. You do have an unlocked bootloader as well?
Yes, but I don't have a good Internet at the moment so I wanted to skip the download of FTF
Sent from Sony Xperia Z Ultra
@hamdogg ?
you may have to flash the boot.img from the .zip to get a working recovery? read post 3 of DogGrom!
If it all goes to pot you will want a ftf to flash to get a working phone again... and alwar use protection - if have a backup
seltoon said:
Yes, but I don't have a good Internet at the moment so I wanted to skip the download of FTF
Sent from Sony Xperia Z Ultra
Click to expand...
Click to collapse
blueether said:
@hamdogg ?
you may have to flash the boot.img from the .zip to get a working recovery? read post 3 of DogGrom!
If it all goes to pot you will want a ftf to flash to get a working phone again... and alwar use protection - if have a backup
Click to expand...
Click to collapse
Hi all...
umm yes it should work. I've not tried flashing ontop of 4.2.2.... but its a sony base, and the most important files will be replaced when you flash the new ROM...
But like blue said... if it doesn't work then you'll need to
1- flash the .290 FTF
2- then recovery, and then
3 -doggROM..
hamdogg said:
Hi all...
umm yes it should work. I've not tried flashing ontop of 4.2.2.... but its a sony base, and the most important files will be replaced when you flash the new ROM...
But like blue said... if it doesn't work then you'll need to
1- flash the .290 FTF
2- then recovery, and then
3 -doggROM..
Click to expand...
Click to collapse
Thanks for your help man. I'll report back with
Sent from Sony Xperia Z Ultra

quickest way to return to stock rooted 4.3

I would just like to return to stock rooted please help thank you
What are you on now?
do you have recovery?
Do you have a locked bootloader?
Do you want pure stock or would you consider a modified stock like DoggRom or monx
blueether said:
What are you on now?
do you have recovery?
Do you have a locked bootloader?
Do you want pure stock or would you consider a modified stock like DoggRom or monx
Click to expand...
Click to collapse
Im on monx 4.3 6806 , would like pure stock just rooted so ican run certain apps. Ihave unlocked boot and recovery
mrbigdreams09 said:
Im on monx 4.3 6806 , would like pure stock just rooted so ican run certain apps. Ihave unlocked boot and recovery
Click to expand...
Click to collapse
There's not much between DoggRom and stock, and that would be my preference, Just flash from recovery with a wipe
For pure stock you could read http://forum.xda-developers.com/showthread.php?t=2576006
Just flash .290 ftf for your device
then follow the first post.
blueether said:
There's not much between DoggRom and stock, and that would be my preference, Just flash from recovery with a wipe
For pure stock you could read http://forum.xda-developers.com/showthread.php?t=2576006
Just flash .290 ftf for your device
then follow the first post.
Click to expand...
Click to collapse
thank you for your help, just so i am for certain, wipe clean then flash .290 ftf then follow post? where could i find the .290 ftf? thank you
mrbigdreams09 said:
thank you for your help, just so i am for certain, wipe clean then flash .290 ftf then follow post? where could i find the .290 ftf? thank you
Click to expand...
Click to collapse
If you are going the ftf route then there is no need to wipe before hand, the options are in flashtool (I just use default)
FTF's can be found here http://forum.xda-developers.com/showthread.php?t=2453921
blueether said:
If you are going the ftf route then there is no need to wipe before hand, the options are in flashtool (I just use default)
FTF's can be found here http://forum.xda-developers.com/showthread.php?t=2453921
Click to expand...
Click to collapse
thank you , i very much appreciate it
mrbigdreams09 said:
I would just like to return to stock rooted please help thank you
Click to expand...
Click to collapse
Question for you. I have an unlocked Sony XZU C6806, running stock 4.3. I am trying to achieve root so I can flash custom roms. Do you know where I go for that?

[Q] Root and Flash ROMs on 757 firmware

Ok, now i'm really confused.
I'm currently on 757 firmware and I want to flash the GPe on it. What exactly do I have to do?
LordManhattan's thread simply requires me to flash some files but the GPe thread needs me to flash boot.img or something.
Can anyone coach me step by step? I've never tried to flash a darn phone with so many prerequisites... It was so much easier playing with the LG and hTc
matthewsucks said:
Ok, now i'm really confused.
I'm currently on 757 firmware and I want to flash the GPe on it. What exactly do I have to do?
LordManhattan's thread simply requires me to flash some files but the GPe thread needs me to flash boot.img or something.
Can anyone coach me step by step? I've never tried to flash a darn phone with so many prerequisites... It was so much easier playing with the LG and hTc
Click to expand...
Click to collapse
From stock 757 with unlocked bootloader:
Copy ROM zip to sdcard of phone
Flash boot.img from the ROM zip using flashtool and fastboot mode. the boot.img will have recovery already in it
Boot the phone into recovery, vol + or - while booting
Factory reset (or format data and wipe caches
Flash the ROM zip from recovery
Reboot into system
I assume you have followed lordmanhattan's guide and have:
Downgraded
Rooted
Backed up TA
Unlocked bootloader
Updated firmware to the latest
blueether said:
From stock 757 with unlocked bootloader:
Copy ROM zip to sdcard of phone
Flash boot.img from the ROM zip using flashtool and fastboot mode. the boot.img will have recovery already in it
Boot the phone into recovery, vol + or - while booting
Factory reset (or format data and wipe caches
Flash the ROM zip from recovery
Reboot into system
I assume you have followed lordmanhattan's guide and have:
Downgraded
Rooted
Backed up TA
Unlocked bootloader
Updated firmware to the latest
Click to expand...
Click to collapse
So it is okay to directly downgrade from 757?
And what do you mean by updated firmware to the latest?
And the boot.img in the ROM package, does it already contain the recovery?
matthewsucks said:
So it is okay to directly downgrade from 757?
And what do you mean by updated firmware to the latest?
Click to expand...
Click to collapse
You want to downgrade to root? if so then yes - see my downgrade sticky thread in the general section for a guide
After rooting/backing up TA/unlocking bootloader you will want to flash the latest firmware again to get the new baseband, and a few other things else any custom 4.3 or 4.4 ROM's won't boot and/or will have IMEI issues
blueether said:
You want to downgrade to root? if so then yes - see my downgrade sticky thread in the general section for a guide
After rooting/backing up TA/unlocking bootloader you will want to flash the latest firmware again to get the new baseband, and a few other things else any custom 4.3 or 4.4 ROM's won't boot and/or will have IMEI issues
Click to expand...
Click to collapse
Erm, actually i want to downgrade so that i can flash this rom: http://forum.xda-developers.com/showthread.php?t=2608708
blueether said:
You want to downgrade to root? if so then yes - see my downgrade sticky thread in the general section for a guide
After rooting/backing up TA/unlocking bootloader you will want to flash the latest firmware again to get the new baseband, and a few other things else any custom 4.3 or 4.4 ROM's won't boot and/or will have IMEI issues
Click to expand...
Click to collapse
Ok now im trying to downgrade it. Do i downgrade to .532 or .290 first?
What things should i exclude? I see quite a few options in Flashtool.
blueether said:
You want to downgrade to root? if so then yes - see my downgrade sticky thread in the general section for a guide
After rooting/backing up TA/unlocking bootloader you will want to flash the latest firmware again to get the new baseband, and a few other things else any custom 4.3 or 4.4 ROM's won't boot and/or will have IMEI issues
Click to expand...
Click to collapse
OK im in trouble. I did not exclude anything while downgrading and now my phone cannot access any mobile networks.
What the hell should i do now?
OK IGNORE THIS LOL. FIXED IT WITH SUS
blueether said:
You want to downgrade to root? if so then yes - see my downgrade sticky thread in the general section for a guide
After rooting/backing up TA/unlocking bootloader you will want to flash the latest firmware again to get the new baseband, and a few other things else any custom 4.3 or 4.4 ROM's won't boot and/or will have IMEI issues
Click to expand...
Click to collapse
Ok to be honest, im trying to flash that ROM because the recent 757 firmware was supposed to fix the sound bug issue. It worked for others' ZU except for mine. Pretty pissed that all SONY said to me was to bring my phone down for a repair, hence i was hoping i could fix it by flashing another ROM.
I downgraded to .532 then updated it back to 757. Seems like it is a hardware problem...
WOW. I'M AN IDIOT. I DECIDED TO WASH MY PHONE UNDER THE TAP BECAUSE IT WAS A LITTLE DIRTY. AND SOMEHOW, THAT FIXED THE SOUND BUG. SOMEONE PLEASE SLAP ME IN THE FACE.
Close this thread please, I'm an idiot. Thanks blueether for your help!
You don't read very well do you?
All the steps needed were there with an explanation of why (where needed).
Next time you you need/want to flash your ZU take the time to read the steps, and ask questions if you aren't sure about a step or why some said to do something a certain way or to see a certain thread...
ps good to see you have the sound working again
blueether said:
You don't read very well do you?
All the steps needed were there with an explanation of why (where needed).
Next time you you need/want to flash your ZU take the time to read the steps, and ask questions if you aren't sure about a step or why some said to do something a certain way or to see a certain thread...
ps good to see you have the sound working again
Click to expand...
Click to collapse
But just to confirm, does all boot.img definitely contains the recovery also?
matthewsucks said:
But just to confirm, does all boot.img definitely contains the recovery also?
Click to expand...
Click to collapse
No. Only custom (CM11, PA, PAC, GPe etc.) and modified ROMs (DoggROM, Monx etc.)
Sent fra min C6833 via Tapatalk
LordManhattan said:
No. Only custom (CM11, PA, PAC, GPe etc.) and modified ROMs (DoggROM, Monx etc.)
Sent fra min C6833 via Tapatalk
Click to expand...
Click to collapse
So am I right to say that the boot.img from the GPe rom in the development forum already contains the recovery?
matthewsucks said:
So am I right to say that the boot.img from the GPe rom in the development forum already contains the recovery?
Click to expand...
Click to collapse
Correct, but only the tweaked version. That's an isolated case though, so the rest of them will have recovery.
Sent fra min C6833 via Tapatalk
matthewsucks said:
OK im in trouble. I did not exclude anything while downgrading and now my phone cannot access any mobile networks.
What the hell should i do now?
OK IGNORE THIS LOL. FIXED IT WITH SUS
Click to expand...
Click to collapse
Hi...I'm in the same position as you...can you please explain how exactly you managed to fix it?
For reference, my C6802 was on stock .757 firmware, then I flashed the unofficial SlimKat rom and kernel from here - http://forum.xda-developers.com/showthread.php?t=2712065. Everything works in the rom except it doesnt connect to my mobile network.
Thanks a lot!
ishaang said:
Hi...I'm in the same position as you...can you please explain how exactly you managed to fix it?
For reference, my C6802 was on stock .757 firmware, then I flashed the unofficial SlimKat rom and kernel from here - http://forum.xda-developers.com/showthread.php?t=2712065. Everything works in the rom except it doesnt connect to my mobile network.
Thanks a lot!
Click to expand...
Click to collapse
Not the same issue ( or at least shouldn't be).
In about phone settings do you have a valid imei no. and baseband?
Have you tried any other ROMs?
blueether said:
Not the same issue ( or at least shouldn't be).
In about phone settings do you have a valid imei no. and baseband?
Have you tried any other ROMs?
Click to expand...
Click to collapse
Thanks for the response blueether! In the phone settings it says Unknown for both baseband and imei. I found this thread where you helped another person with almost the same problem I guess, (http://forum.xda-developers.com/showthread.php?t=2738141) and you have told him to follow these steps:
"Just do as has been said a thousand times...
Downgrade to .532 - see my downgrade thread
Root using either [NUT]'s dual recovery or bin4ries tool - see thread in step above or LordManhattans guide
Backup the TA - see LordManhattons guide
Upgrade to latest FTF
Unlock bootloader
Root using jackies099's kernel
..."
So I'm downloading a .532 FTF and will try out these steps once the download finishes in a while. As I understand, when I upgrade to the latest FTF (.757 now?) the imei/baseband should return.
ishaang said:
Thanks for the response blueether! In the phone settings it says Unknown for both baseband and imei. I found this thread where you helped another person with almost the same problem I guess, (http://forum.xda-developers.com/showthread.php?t=2738141) and you have told him to follow these steps:
"Just do as has been said a thousand times...
Downgrade to .532 - see my downgrade thread
Root using either [NUT]'s dual recovery or bin4ries tool - see thread in step above or LordManhattans guide
Backup the TA - see LordManhattons guide
Upgrade to latest FTF
Unlock bootloader
Root using jackies099's kernel
..."
So I'm downloading a .532 FTF and will try out these steps once the download finishes in a while. As I understand, when I upgrade to the latest FTF (.757 now?) the imei/baseband should return.
Click to expand...
Click to collapse
IMEI/baseband should be fine if you were on 757 and flashed slim.
You could just try reflashing any 4.4 FTF you have laying around while you wait for the other one to download
blueether said:
IMEI/baseband should be fine if you were on 757 and flashed slim.
You could just try reflashing any 4.4 FTF you have laying around while you wait for the other one to download
Click to expand...
Click to collapse
Not sure why they vanished. Unfortunately I'm sort of a noob and don't have any FTFs lying around. I read some more threads and now I'm wondering what I should try first?
A - Flash 290 FTF then downgrade to 532
or
B - Straightaway flash 532 FTF
or
C - Flash 757 FTF
ishaang said:
Not sure why they vanished. Unfortunately I'm sort of a noob and don't have any FTFs lying around. I read some more threads and now I'm wondering what I should try first?
A - Flash 290 FTF then downgrade to 532
or
B - Straightaway flash 532 FTF
or
C - Flash 757 FTF
Click to expand...
Click to collapse
"flash 290" was written a long time ago when it was the 'current' firmware. I would flash 757 first and see how that works out.

[Q] Flashing from .532 rooted to 757 work?

Soo... I have a Bell C6806. My question to all the great devs out there: Is it possible to flash from the .532 stock rooted to .757 stock rooted? When flashing do I flash both the zipable file and the tft or can I just go into TWRP flash the zipable and that's it?
YellowFerrari said:
Soo... I have a Bell C6806. My question to all the great devs out there: Is it possible to flash from the .532 stock rooted to .757 stock rooted? When flashing do I flash both the zipable file and the tft or can I just go into TWRP flash the zipable and that's it?
Click to expand...
Click to collapse
The simple answer is to sell the Bell and buy a real c6806
The other way is to follow one of the several 757 threads for LB (locked bootloader). They should work for the Bell
blueether said:
The simple answer is to sell the Bell and buy a real c6806
The other way is to follow one of the several 757 threads for LB (locked bootloader). They should work for the Bell
Click to expand...
Click to collapse
Do I flash the ftf and the zipable or can I go into recovery an flash the zip?
YellowFerrari said:
Do I flash the ftf and the zipable or can I go into recovery an flash the zip?
Click to expand...
Click to collapse
It's been too long since I played with a locked bootloader, but follow the instructions in the thread. You will need both files from memory one is the system the other is the kernel and baseband etc

Did everything right...still stuck at SONY LOGO!

I rooted my device
I unlocked the Bootloader with Sony's Key
I flashed the new kernel with this 136.Img
DONT know what happened after that ..I have both the recoveries...
But my phone isn't going past the Sony Logo.
X0LARIUM said:
I rooted my device
I unlocked the Bootloader with Sony's Key
I flashed the new kernel with this 136.Img
DONT know what happened after that ..I have both the recoveries...
But my phone isn't going past the Sony Logo.
Click to expand...
Click to collapse
Flash stock ftf. 270 using flashtool from Androxyde
Root using king root
Add xz dual recovery using the bat file from the nuts server
Go to recovery flash the rom u want.
Detailed guide
http://forum.xda-developers.com/xpe...uide-rooting-xperia-z-ultra-lollipop-t3112214
NABENDU1 said:
Flash stock ftf. 270 using flashtool from Androxyde
Root using king root
Add xz dual recovery using the bat file from the nuts server
Go to recovery flash the rom u want.
Detailed guide
http://forum.xda-developers.com/xpe...uide-rooting-xperia-z-ultra-lollipop-t3112214
Click to expand...
Click to collapse
I tried, but it threw some error. I have a Mac...that's the problem. I somehow managed to flash a PA ROM...so at least my device is working.
Man, you are flashing kitkat kernel to lollipop rom, just don't, it won't boot, flash either .270 or .283 kernel or if you want a custom one, flash rockzul kernel.

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