Hi experts,
before i try the new 4.3 rom i would like to know if it is possible to revert back to 4.1.2 later on.
Thanks
Attila
Of course. Flashtool + appropriate FTF file which you can find anywhere in this subforum and you can easily revert back to 4.1.2
Thx
Thank you,
then i give it a try.
Cheers.
no need to flash kernel or basebands? i want to go back ics 4.0.4 .212 russian tft is the best for battery
redneck82 said:
no need to flash kernel or basebands? i want to go back ics 4.0.4 .212 russian tft is the best for battery
Click to expand...
Click to collapse
if u using ftf file it should come integrated with the baseband and kernel unless u untick it while u in falshtools
how to dowgrade from jellybean 4.3 to 4.1.2
how to downgrade from jellybean 4.3 to 4.1.2 on xperia V?
if i try to use FTF of 4.1.2 it goes in boot-loop
4.3 working but having lots of bugs
please suggest urgent
romcio47 said:
Of course. Flashtool + appropriate FTF file which you can find anywhere in this subforum and you can easily revert back to 4.1.2
Click to expand...
Click to collapse
Which needs unlocked bootloader, correct?
Which additional drivers need to be installed?
Is there a way to downgrade with locked bootloader? I am actually ok with the function of .199 but not with it's tons of bloat, and no way to install certain apps. No root is almost like having no sex ever.
peter-k said:
Which needs unlocked bootloader, correct?
Which additional drivers need to be installed?
Is there a way to downgrade with locked bootloader? I am actually ok with the function of .199 but not with it's tons of bloat, and no way to install certain apps. No root is almost like having no sex ever.
Click to expand...
Click to collapse
XDDDDDDDDDDDDDDDDDDDDDDD
Of course yes, flashtool is both for locked and unlocked bootloaders! The drivers I always install is something called "Gordon Gate driver", the FlashTool itself and this is enough for the phone to be recognized while plugging. Be sure to plug in the phone one time in flash mode before the final flashing so that the PC recognizes it and installs drivers, after that unplug it for a while and turn it off again because it will probably turn on, it always happens in my case when I plug the phone for the first time after f.e. installing a brand new OS and not every drivers are installed. Then run FlashTool and you can start the magic!
But, you can always disable certain apps in Settings>Apps>All. You will be actually freezing them (just like with titanium backup) but it's pretty useful. Aaaaand there are two ways of flashing recovery on locked bootloaders so that you can i.e. flash SuperSU .zip file with the app and appropriate binaries (you can find it on its dedicated thread here on XDA), that's what I'm always doing.
My phone is T. Xperia T.
romcio47 said:
XDDDDDDDDDDDDDDDDDDDDDDD
Of course yes, flashtool is both for locked and unlocked bootloaders! Also, you can always disable certain apps in Settings>Apps>All. You will be actually freezing them (just like with titanium backup) but it's pretty useful. Aaaaand there are two ways of flashing recovery on locked bootloaders so that you can i.e. flash SuperSU .zip file with the app and appropriate binaries, that's what I'm always doing
My phone is T. Xperia T.
Click to expand...
Click to collapse
I am on Windows 8.1, can not install ADB / fastboot drivers. Can you comment on that, too? I did install the Microsoft patch.
peter-k said:
I am on Windows 8.1, can not install ADB / fastboot drivers. Can you comment on that, too? I did install the Microsoft patch.
Click to expand...
Click to collapse
For now I'm afraid I can't... I still use Win7...
My phone is T. Xperia T.
romcio47 said:
For now I'm afraid I can't... I still use Win7...
My phone is T. Xperia T.
Click to expand...
Click to collapse
Ok, I have still a notebook somewhere in the corner running XP. I'll see what this one can do. If I can downgrade to 4.12, then I can rrooooot that one. At least I would not feel so naked and vulnerable anymore.
Can Flashtool make a mirror or image of the current ROM?
And thanks bunches for your helpful answer!
Here are the rough steps to downgrade:
- use a PC which runs Windump XP or 7
- install Flashtool
- install drivers (in the Flashtool drivers folder)
- download a 4.12 FTF of your choice. Nordic and Singapore seem pretty good.
- switch phone to USB debugging
- open Flashtool, click on the flash symbol and chose flashmode, follow the instructions, don't disable any of the flashing options
- after successful installation root with DooMLoRD_Easy-Rooting-Toolkit_v17_perf-event-exploit
- after successful rooting update SuperSu
- install recovery CWM4XperiaT_v8i_JB
From here you can install a rooted 4.3 if you can live with it's shortcomings, or any 4.2. I choose Pure-X-Blaster 4.2.2.
Ok so I decided after using this thing stock for ages I was going to try CM11. Spent all day reading and trying to figure this out.
Used Krabappel guide to downgrade to .534 via flashtools. SUCCESSFUL.
Unlocked Bootloader via Sony official. SUCCESSFUL.
Backed up TA via guide. SUCCESSFUL.
Rooted via Root_with_Restore_by_Bin4ry_v33. SUCCESSFUL.
Then moved onto trying to find/install a recovery so I could flash the CM11 rom. Now where things seem to have gone awry...
Flashed advanced stock kernel v4 by krabappel2548 in accordance to this thread: http://forum.xda-developers.com/showthread.php?t=2439298
Via this command: fastboot flash boot adv-stock-v4.img
Claimed it ran through successfully. Tried to adb reboot recovery, no devices found.
Now device will not turn on. Holding down the power button resulted in a single buzz, no screen activity. Volume up+power gave the three vibrations for reset, no screen activity. Currently red blinking light when plugged in via usb.
Not sure where to go from here. Currently sitting and charging while blinking away.
Thanks for looking. This was so much easier on nexus devices lol!
Hello friend, i suppose you should try booting into fastboot mode via holding volume UP and connecting USB, see if flashtool recognizes it.
If it does, then we need to find you a pure stock kernel to install and later a recovery.
Also, what android firmware you had before flashing kernel?
DeejayTelis said:
Hello friend, i suppose you should try booting into fastboot mode via holding volume UP and connecting USB, see if flashtool recognizes it.
If it does, then we need to find you a pure stock kernel to install and later a recovery.
Also, what android firmware you had before flashing kernel?
Click to expand...
Click to collapse
Beautiful, flashtools does recognize it: blue LED and "device connected in fastboot mode"
I believe I was on 14.1.G.1.534 since I needed to downgrade to that in the first step, and I don't think any steps I took afterwards changed it AFAIK.
bpm2000 said:
Ok so I decided after using this thing stock for ages I was going to try CM11. Spent all day reading and trying to figure this out.
Used Krabappel guide to downgrade to .534 via flashtools. SUCCESSFUL.
Unlocked Bootloader via Sony official. SUCCESSFUL.
Backed up TA via guide. SUCCESSFUL.
Rooted via Root_with_Restore_by_Bin4ry_v33. SUCCESSFUL.
Then moved onto trying to find/install a recovery so I could flash the CM11 rom. Now where things seem to have gone awry...
Flashed advanced stock kernel v4 by krabappel2548 in accordance to this thread: http://forum.xda-developers.com/showthread.php?t=2439298
Via this command: fastboot flash boot adv-stock-v4.img
Claimed it ran through successfully. Tried to adb reboot recovery, no devices found.
Now device will not turn on. Holding down the power button resulted in a single buzz, no screen activity. Volume up+power gave the three vibrations for reset, no screen activity. Currently red blinking light when plugged in via usb.
Not sure where to go from here. Currently sitting and charging while blinking away.
Thanks for looking. This was so much easier on nexus devices lol!
Click to expand...
Click to collapse
If you felt a vibration you are not bricked thankfully. Try flashing another ftf in flash tool and start over.
edit: oops you beat me to posting before I hit post.
Looking at my steps taken, did I mess something up? I'm not sure what I did wrong and would like to not repeat this mistake.
I found out what you did wrong.
You needed to have 14.2.A.1.136 fw to install the kernel. Read carefully what it says here.
Stock kernel with CWM and TWRP recovery for 14.2.A.1.136 fw | v4 [10/02/14]
Click to expand...
Click to collapse
If you messed up with the kernel, you might have to install a new one.
But firstly try what angryGTS said before me. Reflash .534 and see what happens, then i will happily help you get to a solid firmware and install CM11
Also, you backed up TA after unlcoking BL or before, and how you backed it up (recovery or other tool? )? (It's important that you have backed up BEFORE unlocking BL :/ )
DeejayTelis said:
I found out what you did wrong.
You needed to have 14.2.A.1.136 fw to install the kernel. Read carefully what it says here.
If you messed up with the kernel, you might have to install a new one.
But firstly try what angryGTS said before me. Reflash .534 and see what happens, then i will happily help you get to a solid firmware and install CM11
Also, you backed up TA after unlcoking BL or before, and how you backed it up (recovery or other tool? )? (It's important that you have backed up BEFORE unlocking BL :/ )
Click to expand...
Click to collapse
I used the tool here: http://forum.xda-developers.com/showthread.php?t=2292598&highlight=ta and backed up before going through Sony's BL unlock process.
Just flashed .534 C6903_14.1.G.1.534_1276-4314_R2A and I am back in!
bpm2000 said:
I used the tool here: http://forum.xda-developers.com/showthread.php?t=2292598&highlight=ta and backed up before going through Sony's BL unlock process.
Just flashed .534 C6903_14.1.G.1.534_1276-4314_R2A and I am back in!
Click to expand...
Click to collapse
That's just great news.
Your camera should not be working since you have unlocked BL and firmware version .534 . Root it using Kingo Root or such one click root programs.
And then install recovery from here .
-Use this to go to rooted 4.3 . thanks to NUT (at this point your camera should start working again)
-Use this to go to rooted 4.4 version .681 , thank NUT again (you can stay here if you want Z2 camera mods and DoomKernel and other stuff availiable to fw up to .681 )
And optional go to latest .757 KitKat using this thank NUT again , but you won't be able to do much here.
Also when you are at .681 , you might want to flash to CM11 there , check here and thank FXP team.
Have fun. And remember to read instructions carefully .
DeejayTelis said:
That's just great news.
Your camera should not be working since you have unlocked BL and firmware version .534 . Root it using Kingo Root or such one click root programs.
And then install recovery from here .
-Use this to go to rooted 4.3 . thanks to NUT (at this point your camera should start working again)
-Use this to go to rooted 4.4 version .681 , thank NUT again (you can stay here if you want Z2 camera mods and DoomKernel and other stuff availiable to fw up to .681 )
And optional go to latest .757 KitKat using this thank NUT again , but you won't be able to do much here.
Also when you are at .681 , you might want to flash to CM11 there , check here and thank FXP team.
Have fun. And remember to read instructions carefully .
Click to expand...
Click to collapse
I gotta run they are kicking me out of work for the day but will try this tomorrow and report on the progress. Thanks a million!
bpm2000 said:
I gotta run they are kicking me out of work for the day but will try this tomorrow and report on the progress. Thanks a million!
Click to expand...
Click to collapse
You are welcome :highfive: .
DeejayTelis said:
You are welcome :highfive: .
Click to expand...
Click to collapse
OK I got the recovery installed fine.
Is it safe to go from .534 to 1.136? Looks like NUT removed the 4.3 0.290 files that you linked today.
Do I need to be using his kernel/de-odexing at all?
thx
bpm2000 said:
OK I got the recovery installed fine.
Is it safe to go from .534 to 1.136? Looks like NUT removed the 4.3 0.290 files that you linked today.
Do I need to be using his kernel/de-odexing at all?
thx
Click to expand...
Click to collapse
go straight to the 757 rom
Didn't NUT said that .681 is required to go to .757 ?
DeejayTelis said:
Didn't NUT said that .681 is required to go to .757 ?
Click to expand...
Click to collapse
yes, but it isn't
that's just his guide for people already on the latest FW
You basically just need to be rooted, on any FW with recovery and you can flash it
gregbradley said:
yes, but it isn't
that's just his guide for people already on the latest FW
You basically just need to be rooted, on any FW with recovery and you can flash it
Click to expand...
Click to collapse
Really?
I flashed from .257 to .290 to .681 and then .757 for nothing. Lol
DeejayTelis said:
Really?
I flashed from .257 to .290 to .681 and then .757 for nothing. Lol
Click to expand...
Click to collapse
Yes really.
I didnt backup before flashing, and now have false firmware, no sim signal, no wifi, battery heats as hell, and so on and so on...
I opened my Sony Xperia T LT30p- and found the original customization number and all that.
Its: "1266-6442 LT30p/Mobile Phone/Telekom.de DE (Germany)/Black"
So if anyone can help me to post here or a clue to find that firmware, he would be the God for me !
so please HELP..
Stock firmware can be found here:
http://forum.xda-developers.com/showthread.php?t=2648320
[FTF] STOCK FIRMWARES for Xperia T,TL,V,TX
Sent from my LT30p using XDA Free mobile app
Mad Marty said:
Stock firmware can be found here:
http://forum.xda-developers.com/showthread.php?t=2648320
[FTF] STOCK FIRMWARES for Xperia T,TL,V,TX
Sent from my LT30p using XDA Free mobile app
Click to expand...
Click to collapse
Yeah thanks dude But my original firmware is not there :/
And i figured out, i cant flash any previos firmware versions, just the 4.3.
When i boot, the sony and xperia logo comes, and then that animation, and blocks there, and the phone restarts, and doing this all over again..
Just the 4.3, boots normal and all that, but i dont want that 4.3, want a previous version :/
bosnianboss9 said:
Yeah thanks dude But my original firmware is not there :/
And i figured out, i cant flash any previos firmware versions, just the 4.3.
When i boot, the sony and xperia logo comes, and then that animation, and blocks there, and the phone restarts, and doing this all over again..
Just the 4.3, boots normal and all that, but i dont want that 4.3, want a previous version :/
Click to expand...
Click to collapse
This is quite strange
1) Locked or unlocked bootloader?
2) Have you ever flashed a custom kernel?
3) Have you ever flashed a custom rom?
4) What's your original firmware customization number? EDIT: I've just seen that's 1266-6442... is this your ORIGINAL firmware? Where do you live? In Germany?
5) Rooted? CWM?
istux said:
This is quite strange
1) Locked or unlocked bootloader?
2) Have you ever flashed a custom kernel?
3) Have you ever flashed a custom rom?
4) What's your original firmware customization number? EDIT: I've just seen that's 1266-6442... is this your ORIGINAL firmware? Where do you live? In Germany?
5) Rooted? CWM?
Click to expand...
Click to collapse
I can have locked or unlocked, thats not the problem.
Custom kernel, roms, rooting CWM and so on, i never did that, just flashing with flashtool :S
and yeah 1266-6442 is the original customization number, and i live in belgium, but 20 minutes away from Germany.
bosnianboss9 said:
I can have locked or unlocked, thats not the problem.
Custom kernel, roms, rooting CWM and so on, i never did that, just flashing with flashtool :S
and yeah 1266-6442 is the original customization number, and i live in belgium, but 20 minutes away from Germany.
Click to expand...
Click to collapse
Ok, yes, I know how it works...
I just asked about the bootloader status, because sometimes some people mess with bootloader, kernel, flash from recovery, flash with Flashtool... and so on... WITHOUT the understanding of what they're doing... and come here complaining... do you know what I mean?
OK, now, I know how to help you.
1)
There's a method to download and install the original firmware directly from Sony.
But you need to be rooted. So, are you rooted?
2)
Your customization number is wrong.
1266-6442 doesn't exist.
That's maybe the number of your model, but it's not related with the firmware.
The right number for Telekom Germany is 1265-9144
The customization number is inside your software and can be found pressing *#*#7378423#*#*, inside Service info --> Sofware info --> Customization Version.
Give me that number please, so I can understand what's the software working now on you device.
3)
You said "I didnt backup before flashing, and now have false firmware, no sim signal, no wifi, battery heats as hell, and so on and so on.."
Ok, please, explain better what you did.
Have you flashed what kind of rom? Via recovery?
istux said:
Ok, yes, I know how it works...
I just asked about the bootloader status, because sometimes some people mess with bootloader, kernel, flash from recovery, flash with Flashtool... and so on... WITHOUT the understanding of what they're doing... and come here complaining... do you know what I mean?
OK, now, I know how to help you.
1)
There's a method to download and install the original firmware directly from Sony.
But you need to be rooted. So, are you rooted?
2)
Your customization number is wrong.
1266-6442 doesn't exist.
That's maybe the number of your model, but it's not related with the firmware.
The right number for Telekom Germany is 1265-9144
The customization number is inside your software and can be found pressing *#*#7378423#*#*, inside Service info --> Sofware info --> Customization Version.
Give me that number please, so I can understand what's the software working now on you device.
3)
You said "I didnt backup before flashing, and now have false firmware, no sim signal, no wifi, battery heats as hell, and so on and so on.."
Ok, please, explain better what you did.
Have you flashed what kind of rom? Via recovery?
Click to expand...
Click to collapse
Haha yeah i know what u mean, but thats not me
1) As i sad, i just did flashing firmware, whats easy, but rooting, roms, kernel and so on, i dont have a clue how to do this and WHAT it is at all :S
2)http://forum.xda-developers.com/showthread.php?t=2145364&page=4, here i saw it the 1266-6442 telekom germany DE, and i thought thats it, but u may be sure right.
And i currently have 1265-1620_R1J, flashed it yesterday just so, its CE Region i thing, 4.3 version, build .295.
3)Yeah, i first had the original Firmware on my phone, had the 4.2.2 version, and then the official software came for my phone and the T-Mobile provider i think.
And then, the 4.3 is just S**t, as i sad it, just problems, and i just want the previous version, because it worked perfect.
so i just was flashing all the other firmwares, especially the 4.3, from all the other regions, i thought maybe they will work better, but nope.
And when i try to flash previous versions/firmware, it just comes to the animation, after the sony and xperia logo, and restarts over and over again :/
And no, no roms, or recovery, i didnt do anything of all that, just flashing firmware with flashtool.
P.S. Thanks for trying to help me dude !
bosnianboss9 said:
Haha yeah i know what u mean, but thats not me
1) As i sad, i just did flashing firmware, whats easy, but rooting, roms, kernel and so on, i dont have a clue how to do this and WHAT it is at all :S
2)http://forum.xda-developers.com/showthread.php?t=2145364&page=4, here i saw it the 1266-6442 telekom germany DE, and i thought thats it, but u may be sure right.
And i currently have 1265-1620_R1J, flashed it yesterday just so, its CE Region i thing, 4.3 version, build .295.
3)Yeah, i first had the original Firmware on my phone, had the 4.2.2 version, and then the official software came for my phone and the T-Mobile provider i think.
And then, the 4.3 is just S**t, as i sad it, just problems, and i just want the previous version, because it worked perfect.
so i just was flashing all the other firmwares, especially the 4.3, from all the other regions, i thought maybe they will work better, but nope.
And when i try to flash previous versions/firmware, it just comes to the animation, after the sony and xperia logo, and restarts over and over again :/
And no, no roms, or recovery, i didnt do anything of all that, just flashing firmware with flashtool.
P.S. Thanks for trying to help me dude !
Click to expand...
Click to collapse
im reading you post and i get more confused because two things its impossible your xperia t had 4.2.2 because we jump ditectly from 4.1.2 to 4.3 and you put one thread for tx what is really your phone xperia t or tx?
Enviado do meu Nexus 10 através de Tapatalk
quintas84 said:
im reading you post and i get more confused because two things its impossible your xperia t had 4.2.2 because we jump ditectly from 4.1.2 to 4.3 and you put one thread for tx what is really your phone xperia t or tx?
Enviado do meu Nexus 10 através de Tapatalk
Click to expand...
Click to collapse
Ouh sorry my bad, 4.1.2 it was, and yeah, i know of course what phone i have dude Sony Xperia T lt30p
bosnianboss9 said:
Haha yeah i know what u mean, but thats not me
1) As i sad, i just did flashing firmware, whats easy, but rooting, roms, kernel and so on, i dont have a clue how to do this and WHAT it is at all :S
2)http://forum.xda-developers.com/showthread.php?t=2145364&page=4, here i saw it the 1266-6442 telekom germany DE, and i thought thats it, but u may be sure right.
And i currently have 1265-1620_R1J, flashed it yesterday just so, its CE Region i thing, 4.3 version, build .295.
3)Yeah, i first had the original Firmware on my phone, had the 4.2.2 version, and then the official software came for my phone and the T-Mobile provider i think.
And then, the 4.3 is just S**t, as i sad it, just problems, and i just want the previous version, because it worked perfect.
so i just was flashing all the other firmwares, especially the 4.3, from all the other regions, i thought maybe they will work better, but nope.
And when i try to flash previous versions/firmware, it just comes to the animation, after the sony and xperia logo, and restarts over and over again :/
And no, no roms, or recovery, i didnt do anything of all that, just flashing firmware with flashtool.
P.S. Thanks for trying to help me dude !
Click to expand...
Click to collapse
Ok, now I've understood what's your situation.
It seems that when you flashed 4.1.2 firmwares, the process was not compete for some reason.
The list from which you get that number, is about all kind of xperia T... and is different from the firmware list.
The problem is that you lost your previous original number, maybe it was 1265-9144... and you can resume it only with root and a little bit of experience... and actually I'm not sure you would be able to handle this kind of hacking stuff.
Anyway I'm quite sure that 4.1.2 from CE is perfect for your needs.
Try this one with Flashtool: http://forum.xda-developers.com/showpost.php?p=42393403&postcount=29
This firmware is perfect for any european country: I tested many times and is one of the best.
But before flashing, recharge your battery to the maximum. And be sure that the flashing process is complete and without errors.
Just try and let me know...
istux said:
Ok, now I've understood what's your situation.
It seems that when you flashed 4.1.2 firmwares, the process was not compete for some reason.
The list from which you get that number, is about all kind of xperia T... and is different from the firmware list.
The problem is that you lost your previous original number, maybe it was 1265-9144... and you can resume it only with root and a little bit of experience... and actually I'm not sure you would be able to handle this kind of hacking stuff.
Anyway I'm quite sure that 4.1.2 from CE is perfect for your needs.
Try this one with Flashtool: http://forum.xda-developers.com/showpost.php?p=42393403&postcount=29
This firmware is perfect for any european country: I tested many times and is one of the best.
But before flashing, recharge your battery to the maximum. And be sure that the flashing process is complete and without errors.
Just try and let me know...
Click to expand...
Click to collapse
Well Im downloading it now, in 5 minutes the download is done, and flash it then and i will report.
When it doesnt work, i must do that root or what u think should work.
With a bit of instructions and so on, i could do it, im a "Computer/Technic Freak" anyway
bosnianboss9 said:
Well Im downloading it now, in 5 minutes the download is done, and flash it then and i will report.
When it doesnt work, i must do that root or what u think should work.
With a bit of instructions and so on, i could do it, im a "Computer/Technic Freak" anyway
Click to expand...
Click to collapse
Damn, didint work. I had 50 % Battery, thats not the problem, the flashing process went good without any errors, and again, it comes past sony and xperia logo, and then by the animation, it blocks and restarts and do it all again..
I think i must do that root and so on :/
bosnianboss9 said:
Damn, didint work. I had 50 % Battery, thats not the problem, the flashing process went good without any errors, and again, it comes past sony and xperia logo, and then by the animation, it blocks and restarts and do it all again..
I think i must do that root and so on :/
Click to expand...
Click to collapse
This kind of issue is called "bootloop".
When it happens, try to push "power button" + "volume up" together.
The phone will turn off.
Turn on again and if there's bootloop again, repeat the procedure on and on and on.
Try many times...
istux said:
This kind of issue is called "bootloop".
When it happens, try to push "power button" + "volume up" together.
The phone will turn off.
Turn on again and if there's bootloop again, repeat the procedure on and on and on.
Try many times...
Click to expand...
Click to collapse
Well i did it, many times, didnt help.. And tried the soft and hardreset at least, didnt work either.. But im asking, why does this bootloop dont appear by any 4.3 version ?
Can i check somehow, is my phone rooted ?
Well, the other method wirh rooting and so on, must be done i think..
bosnianboss9 said:
Well i did it, many times, didnt help.. And tried the soft and hardreset at least, didnt work either.. But im asking, why does this bootloop dont appear by any 4.3 version ?
Can i check somehow, is my phone rooted ?
Well, the other method wirh rooting and so on, must be done i think..
Click to expand...
Click to collapse
I can't answer to the first question.
You are the first with this weird problem and I'm beginning to think that something is broken inside your phone.
Bootloops are usual when something is wrong with kernel or system, but if you say that flashing went good and this appears only with 4.1.2 , I really don't know why.
You are not rooted because you've never done before and anyway every time you format the system (flashing with Flashtool or via recovery) you lose root.
So you are not rooted for sure.
The problem now is becoming bigger, because there's no way to root a 4.3 firmware directly.
But... guess what? You have to root 4.1.2 before and then install a 4.3 already rooted. :crying:
The only way for you to root 4.3 directly is to unlock your bootloader, but this means that you lose warranty and DRM keys (that are needed to let work some functions like Bravia Engine).
Actually you could save your warranty and DRM keys with a special backup (called TA backup), but.... guess what? You need to be rooted!!!! :crying:
The second way is to try to install 4.0.4 ice cream and root it. It could work.
I give you this link https://docs.google.com/file/d/0B55PDGQqCzReV2dFSjFSNnlLLVk/preview?pli=1
It's 4.0.4 italian version...
Try this... and if it doesn't work, the only way is to unlock your bootloader losing warranty and drm keys, sorry...
istux said:
I can't answer to the first question.
You are the first with this weird problem and I'm beginning to think that something is broken inside your phone.
Bootloops are usual when something is wrong with kernel or system, but if you say that flashing went good and this appears only with 4.1.2 , I really don't know why.
You are not rooted because you've never done before and anyway every time you format the system (flashing with Flashtool or via recovery) you lose root.
So you are not rooted for sure.
The problem now is becoming bigger, because there's no way to root a 4.3 firmware directly.
But... guess what? You have to root 4.1.2 before and then install a 4.3 already rooted. :crying:
The only way for you to root 4.3 directly is to unlock your bootloader, but this means that you lose warranty and DRM keys (that are needed to let work some functions like Bravia Engine).
Actually you could save your warranty and DRM keys with a special backup (called TA backup), but.... guess what? You need to be rooted!!!! :crying:
The second way is to try to install 4.0.4 ice cream and root it. It could work.
I give you this link https://docs.google.com/file/d/0B55PDGQqCzReV2dFSjFSNnlLLVk/preview?pli=1
It's 4.0.4 italian version...
Try this... and if it doesn't work, the only way is to unlock your bootloader losing warranty and drm keys, sorry...
Click to expand...
Click to collapse
Dude, i s*it on the warrany and so on, i just want my phone to get goind and work !
So i will unlock the bootloader, and what should i do next ?
bosnianboss9 said:
Dude, i s*it on the warrany and so on, i just want my phone to get goind and work !
So i will unlock the bootloader, and what should i do next ?
Click to expand...
Click to collapse
LOL :cyclops: as you wish...
1) Flash 4.3 with Flashtool
2) Unlock your bootloader on Sony official site following all the instructions: http://unlockbootloader.sonymobile.com/instructions
3) Once it's unlocked, open Flashtool and re-flash 4.1.2 CE that I gave you and you tried before: http://forum.xda-developers.com/showpost.php?p=42393403&postcount=29
4) Don't turn on. Download Doomkernel here: http://d-h.st/4kK
Unpack the .elf file inside the zip
5) Open Flashtool. Connect the phone to PC keeping pushed the volume-up button. Now the phone is in fastboot mode. Click on the lightning symbol, select fastbootmode, select kernel to flash, select the .elf file extracted before, done.
6) Unplug the phone. Turn on and you will see the doomkernel logo... and now I hope that you finally enter into 4.1.2 firmware without bootloop.
7) To root: you need to copy this file http://download.chainfire.eu/396/SuperSU/UPDATE-SuperSU-v1.94.zip to the internal memory.
Turn off. Turn on pushing volume-down repeatedly, now you enter into recovery, now install the supersu zip and reboot.
istux said:
LOL :cyclops: as you wish...
1) Flash 4.3 with Flashtool
2) Unlock your bootloader on Sony official site following all the instructions: http://unlockbootloader.sonymobile.com/instructions
3) Once it's unlocked, open Flashtool and re-flash 4.1.2 CE that I gave you and you tried before: http://forum.xda-developers.com/showpost.php?p=42393403&postcount=29
4) Don't turn on. Download Doomkernel here: http://d-h.st/4kK
Unpack the .elf file inside the zip
5) Open Flashtool. Connect the phone to PC keeping pushed the volume-up button. Now the phone is in fastboot mode. Click on the lightning symbol, select fastbootmode, select kernel to flash, select the .elf file extracted before, done.
6) Unplug the phone. Turn on and you will see the doomkernel logo... and now I hope that you finally enter into 4.1.2 firmware without bootloop.
7) To root: you need to copy this file http://download.chainfire.eu/396/SuperSU/UPDATE-SuperSU-v1.94.zip to the internal memory.
Turn off. Turn on pushing volume-down repeatedly, now you enter into recovery, now install the supersu zip and reboot.
Click to expand...
Click to collapse
DAAAAAMN ! -.- :/ DommKernel logo is there, xperia logo, animation, and blocks again, restarts all the time.. I'm really desperate...
Now you have 4.1.2 with the doomkernel and the root, which is the perfect combination to do anything on your device.
If it's working, you can leave the phone in this situation.
Instead if you really want to go back to the original firmware, go here: http://forum.xda-developers.com/showthread.php?t=2334653
Follow the part A using this custom number 1265-9144 (t-mobile Germany). Remember you need root for this process!
Relock the bootloader http://forum.xda-developers.com/showthread.php?t=1924221
Plug to Sony PC Companion and Sony will re-install your original firmware.
My advice is to leave the phone unlocked and rooted with CE firmware
---------- Post added at 07:04 PM ---------- Previous post was at 06:59 PM ----------
bosnianboss9 said:
DAAAAAMN ! -.- :/ DommKernel logo is there, xperia logo, animation, and blocks again, restarts all the time.. I'm really desperate...
Click to expand...
Click to collapse
Damn.
Reflash 4.3 with Flashtool.
Download this Doomkernel: http://doomlord.xperia-files.com/download.php?dlid=VC1Eb29NS2VybmVsLXYwOQ==
Be aware: don't use the old doomkernel, but this one (v.09) that is specific for 4.3
Flash the elf file, as you did before.
Now you have doomkernel logo and you can enter into 4.3.
Now root it as I suggested in the previous posts (turn off, turn on pushing vol-down, flash suspersu zip, reboot).
Try.
istux said:
Now you have 4.1.2 with the doomkernel and the root, which is the perfect combination to do anything on your device.
If it's working, you can leave the phone in this situation.
Instead if you really want to go back to the original firmware, go here: http://forum.xda-developers.com/showthread.php?t=2334653
Follow the part A using this custom number 1265-9144 (t-mobile Germany). Remember you need root for this process!
Relock the bootloader http://forum.xda-developers.com/showthread.php?t=1924221
Plug to Sony PC Companion and Sony will re-install your original firmware.
My advice is to leave the phone unlocked and rooted with CE firmware
Click to expand...
Click to collapse
Well dude im a bit confused now
The recovery mode is working too ( volume down pressing repeadetly", "Team recovery..." didnt catch up the rest of the name, but cant boot into the phone as i said.
Soo, what should i do now? You are my one and only HOPE !!
Hello everyone,
I am new here and I'm having really hard time going around the forums and searching for what I seek and everything is so confusing and I really need someone's help. I've never done this and it terrifies me to screw up my phone. Here's the deal, I want to root my Sony Xperia Z so I can remove the useless built in apps and maybe get a cool theme. I've been looking for threads but there are so many and I don't know which one to take, most talk about some firmware I don't even know what that is but I looked a bit on the internet and found out which is so here are my phone specs:
Sony Xperia Z
C6603
4.3 Jelly Bean
Bootloader unlock allowed: Yes
Firmware thing: 10.4.B.0.569
Any help would be appreciated, thank you so much.
Wrong section buddy. Should be in the q and a section and you can actually ask in the help thread: http://forum.xda-developers.com/showthread.php?t=2345372
I would love to answer your question but I'm on my phone, very limited on what I can do atm.
Sent from my C6603 using XDA Premium 4 mobile app
LitoNi said:
Wrong section buddy. Should be in the q and a section and you can actually ask in the help thread: http://forum.xda-developers.com/showthread.php?t=2345372
I would love to answer your question but I'm on my phone, very limited on what I can do atm.
Sent from my C6603 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Damn, I didn't realize, hopefully a mod will be kind enough to move it. Thank you.
Raptyrox said:
Hello everyone,
I am new here and I'm having really hard time going around the forums and searching for what I seek and everything is so confusing and I really need someone's help. I've never done this and it terrifies me to screw up my phone. Here's the deal, I want to root my Sony Xperia Z so I can remove the useless built in apps and maybe get a cool theme. I've been looking for threads but there are so many and I don't know which one to take, most talk about some firmware I don't even know what that is but I looked a bit on the internet and found out which is so here are my phone specs:
Sony Xperia Z
C6603
4.3 Jelly Bean
Bootloader unlock allowed: Yes
Firmware thing: 10.4.B.0.569
Any help would be appreciated, thank you so much.
Click to expand...
Click to collapse
Welcome to xda where everyone starts off as a noob
Don't worry we all make mistakes hopefully a moderator will move it in the right place.
Now to answer your questions
a) A firmware is the software installed on your device you have got it right in your specs.
b) The method of rooting depends on the firmware. The firmware you have does not allow easy rooting.
You have two options since your bootloader can be unlocked
1) Backup your ta partition using the backup utility and store it on your computer. Unlock your bootloader and root your device by following the guide posted by cookie ninja in the xperia z
android development section
http://forum.xda-developers.com/showthread.php?t=2656698
[GUIDE][ROOT] How to Root 101 Firmware and regain LB
2) Downgrade your firmware to android 4.2.2 by flashing an FTF file using flashtool (you can find these in the development section as well) and then root using doomlords rooting toolkit. You can then upgrade to even android 4.4 by flashing any of the pre rooted roms from the development section.
All the best.
Sent from my C6603 using XDA Free mobile app
Raptyrox said:
Hello everyone,
I am new here and I'm having really hard time going around the forums and searching for what I seek and everything is so confusing and I really need someone's help. I've never done this and it terrifies me to screw up my phone. Here's the deal, I want to root my Sony Xperia Z so I can remove the useless built in apps and maybe get a cool theme. I've been looking for threads but there are so many and I don't know which one to take, most talk about some firmware I don't even know what that is but I looked a bit on the internet and found out which is so here are my phone specs:
Sony Xperia Z
C6603
4.3 Jelly Bean
Bootloader unlock allowed: Yes
Firmware thing: 10.4.B.0.569
Any help would be appreciated, thank you so much.
Click to expand...
Click to collapse
Hi
Welcome to xda
First you cant root 4.3 only if unlock bootloader and the unlock not hard but better try downgrade to 4.2.2:
Download a software called flashtool from here and install it then after install finish go to the place where you install flashtool and find folder called DRIVERS open it and you will find an exe file open it and select xperia z- flashmode drivers - fastboot drivers then install
Get an FTF file for flashtool like that
After the ftf download finish put the ftf file in "frimware" folder in the place you installed flashtool
Open flashtool then click the lighning icon
Select your downloaded FTF
After few minutes you will see screen appear says WAITING FOR FLASH MODE
Turn off you phone
Hold the volume down button then connect your phone with your pc with usb cable
After few minutes you will see your phone downgradedto 4.2.2
THIS WILL DELETE ALL YOU APPS AND DATA IN YOUR PHONE!!! So better make backup!!.the phone must charged to 80%
Now root your device with kingo root this tool not working on 4.3 that why i said must DOWNGRADE
Install CWM and TWRP recovery here
After finish get a PREROOTED ROM like this
Flash it in recovery
Now we finished
Other notes: the flashtool and FTF can repair your phone if bricked so dont panic if that happened just use the lighting icon:angel:
Hit thanks if helped
Raptyrox said:
Hello everyone,
I am new here and I'm having really hard time.......
Any help would be appreciated, thank you so much.
Click to expand...
Click to collapse
Sony smartphones are nearly impossible to hard brick, unless you restored a wrong bootloader TA partition.(the one not from your own device)
The worst case scenario which you can get is total wipeout of every data you have on your phone, so always make a backup of things you need before doing anything.
The things you will need:
1.Basic computer skills
2.Knowing the bootloader of your phone
3.Knowing how to use custom recovery (cwm or twrp)
4.Knowing how to use flashtool
5.Keep a backup of firmware files (ftf) in case anything happen
6.Always check the forum in case the old backup of something of yours won't work in your phone after you updated
Thank you guys, you're all wonderful.
Raptyrox said:
Thank you guys, you're all wonderful.
Click to expand...
Click to collapse
You're welcome bro!:highfive:
androidfreak70 said:
Hi
Welcome to xda
First you cant root 4.3 only if unlock bootloader and the unlock not hard but better try downgrade to 4.2.2:
Download a software called flashtool from here and install it then after install finish go to the place where you install flashtool and find folder called DRIVERS open it and you will find an exe file open it and select xperia z- flashmode drivers - fastboot drivers then install
Get an FTF file for flashtool like that
After the ftf download finish put the ftf file in "frimware" folder in the place you installed flashtool
Open flashtool then click the lighning icon
Select your downloaded FTF
After few minutes you will see screen appear says WAITING FOR FLASH MODE
Turn off you phone
Hold the volume down button then connect your phone with your pc with usb cable
After few minutes you will see your phone downgradedto 4.2.2
THIS WILL DELETE ALL YOU APPS AND DATA IN YOUR PHONE!!! So better make backup!!.the phone must charged to 80%
Now root your device with kingo root this tool not working on 4.3 that why i said must DOWNGRADE
Install CWM and TWRP recovery here
After finish get a PREROOTED ROM like this
Flash it in recovery
Now we finished
Other notes: the flashtool and FTF can repair your phone if bricked so dont panic if that happened just use the lighting icon:angel:
Hit thanks if helped
Click to expand...
Click to collapse
One question, if I root it I can install kitkat? Just as an example.
Raptyrox said:
One question, if I root it I can install kitkat? Just as an example.
Click to expand...
Click to collapse
If you want stock unmodded one you can do it without root. And if you want a rooted with dual recovery you will need root
But I advise you not to use stock kitkat because its lags alot and low battery life
Try those if you want:
Stock no root needed ( flash via flashtool)
Modded and fast with Root and recoveryROOT NEEDED
Thanks!
androidfreak70 said:
Hi
Welcome to xda
First you cant root 4.3 only if unlock bootloader and the unlock not hard but better try downgrade to 4.2.2:
Download a software called flashtool from here and install it then after install finish go to the place where you install flashtool and find folder called DRIVERS open it and you will find an exe file open it and select xperia z- flashmode drivers - fastboot drivers then install
Get an FTF file for flashtool like that
After the ftf download finish put the ftf file in "frimware" folder in the place you installed flashtool
Open flashtool then click the lighning icon
Select your downloaded FTF
After few minutes you will see screen appear says WAITING FOR FLASH MODE
Turn off you phone
Hold the volume down button then connect your phone with your pc with usb cable
After few minutes you will see your phone downgradedto 4.2.2
THIS WILL DELETE ALL YOU APPS AND DATA IN YOUR PHONE!!! So better make backup!!.the phone must charged to 80%
Now root your device with kingo root this tool not working on 4.3 that why i said must DOWNGRADE
Install CWM and TWRP recovery here
After finish get a PREROOTED ROM like this
Flash it in recovery
Now we finished
Other notes: the flashtool and FTF can repair your phone if bricked so dont panic if that happened just use the lighting icon:angel:
Hit thanks if helped
Click to expand...
Click to collapse
This is what has to be done. Took me a while but yeah its worth it at the end.
Obillion said:
This is what has to be done. Took me a while but yeah its worth it at the end.
Click to expand...
Click to collapse
:good::good:
I made the mistake of unlocking my bootloader without making a backup of my TA, so make sure you don't make the same mistake. Not an issue really unless you REALLY want OTA updates.
Sent from my C6603 using Tapatalk
Hey guys. I was trying to install Cm10 on my sister's xperia T. I rooted it, installed recovery, wiped everything but after I flashed CM and clicked reboot, the phone is dead. I can't turn it on, I can't enter recovery mode, the PC isn't recognising it. If I push the on/off button it vibrates once but then nothing and if I push at the same time power on and volume up, it vibrates three times but then again nothing.
I know I forgot to do something while installing the ROM but please any piece of help might be extremely useful as I ended up with a dead phone and nothing I can do.
DarthFederer said:
Hey guys. I was trying to install Cm10 on my sister's xperia T. I rooted it, installed recovery, wiped everything but after I flashed CM and clicked reboot, the phone is dead. I can't turn it on, I can't enter recovery mode, the PC isn't recognising it. If I push the on/off button it vibrates once but then nothing and if I push at the same time power on and volume up, it vibrates three times but then again nothing.
I know I forgot to do something while installing the ROM but please any piece of help might be extremely useful as I ended up with a dead phone and nothing I can do.
Click to expand...
Click to collapse
Did you unlock the phone's bootloader? Because custom roms like cyanogenmod require an unlocked bootloader for xperia phones. Also, try using the flashtool to revive your phone. This sounds pretty much like a soft brick. If I'm right, it's 100% guarandeed you can bring the phone back to life.
|>/\nte said:
Did you unlock the phone's bootloader? Because custom roms like cyanogenmod require an unlocked bootloader for xperia phones. Also, try using the flashtool to revive your phone. This sounds pretty much like a soft brick. If I'm right, it's 100% guarandeed you can bring the phone back to life.
Click to expand...
Click to collapse
You mean Emma? It doesn't recognise it...
DarthFederer said:
You mean Emma? It doesn't recognise it...
Click to expand...
Click to collapse
Who would use Emma when you've got Flashtool?
Also, you should really figure out if your bootloader is unlocked or not.
Antiga Prime said:
Who would use Emma when you've got Flashtool?
Also, you should really figure out if your bootloader is unlocked or not.
Click to expand...
Click to collapse
While waiting for an answer I downloaded flashtool, found a suitable ROM to flash (from flashtool website), installed the device's drivers, entered flash mode but then Flashtool showed me this
DarthFederer said:
While waiting for an answer I downloaded flashtool, found a suitable ROM to flash (from flashtool website), installed the device's drivers, entered flash mode but then Flashtool showed me this
Click to expand...
Click to collapse
Are there other errors above the ones seen there?
What ROM did you Flash? Maybe you could try with ones found here on XDA.
Also, when you start up the FlashMode process in Flashtools, is your phone already connected?
Antiga Prime said:
Are there other errors above the ones seen there?
What ROM did you Flash? Maybe you could try with ones found here on XDA.
Also, when you start up the FlashMode process in Flashtools, is your phone already connected?
Click to expand...
Click to collapse
Yes it was a problem caused by the ROM I was trying to install. I found one with stock 4.0.4 and flashed it and finally it came back to life.
And in fact it is faster than when it was running 4.3.3
DarthFederer said:
Yes it was a problem caused by the ROM I was trying to install. I found one with stock 4.0.4 and flashed it and finally it came back to life.
And in fact it is faster than when it was running 4.3.3
Click to expand...
Click to collapse
Guess what: if you don't like the 4.04, you can find official 4.3 firmware files in this site. There's a collection of these things. Just search for them.
|>/\nte said:
Guess what: if you don't like the 4.04, you can find official 4.3 firmware files in this site. There's a collection of these things. Just search for them.
Click to expand...
Click to collapse
Thanks for the tip. In fact I'll make another effort to install CM and this time I'll make sure to follow every step properly. But comparing the two editions, I think 4.0 is smoother than 4.3.