[Q] unlocking relocking - Xperia Z Q&A, Help & Troubleshooting

Hello,
I have successfully unlocked and relocked the bootloader before with flashtool and they worked fine, if I unlock the bootloader again could I relock it anytime in the future? (with flashtool) like 2 years time or something, also how long will cyanogenmod developers make cyanogemod? and will there always be a ftf file of the newest stock firmwares, for example if I was on 4.3 and 4.4 came out would there always be a ftf file available for people with unlocked bootloaders? I say this because you can't update after unlocking the bootloader because pc companion says the phone can't be updated because it has modified software on it.
Thank you

I think you already know the answer since you already did it once. cm has been around forever and it's too large of a developing community to stop.
Sent from my C6603 using xda app-developers app

As long as you have ta partition backup...

Do your device show “bootloader unclocked allowed:yes” after you relock it?

Related

How to install recovery or cwm with locked bootlaoder

How kan i install recovery or cwm with bootloader locked.
My statu for unlocked bootloader is : no
Do You have one way to install this please
Sent from my LT30p using xda app-developers app
I don't think there is currently a way to do that. If you were to flash an unbranded firmware onto the phone would that allow you to unlock the bootloader (allowing installation of CWM)? I can't unlock my bootloader due to my PC being broken.
Sent from my LT30p using xda app-developers app
I'm waiting for a solution as well. it should not be that hard as they have a solution for the xperia s with a locked bootloader.
maybe some very wise and helpful dev can port cwm for us xperia t owners with locked bootloaders.
sessel said:
How kan i install recovery or cwm with bootloader locked.
My statu for unlocked bootloader is : no
Do You have one way to install this please
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
No method currently exists
xL3thalTuRdZz said:
I don't think there is currently a way to do that. If you were to flash an unbranded firmware onto the phone would that allow you to unlock the bootloader (allowing installation of CWM)? I can't unlock my bootloader due to my PC being broken.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
Flashing unbranded firmware will not allow you to unlock the bootloader if you currently cannot unlock it.
Well, no promises of any kind, but there is that one user which claims that after updating to 3.195 the bootloader status changed from non-unlockable to unlockable.
I have to stress out, I cannot confirm nor explain this and I do not propose that anybody tries this.
But we all know where this is going, right...? Sic...
schaggo said:
Well, no promises of any kind, but there is that one user which claims that after updating to 3.195 the bootloader status changed from non-unlockable to unlockable.
I have to stress out, I cannot confirm nor explain this and I do not propose that anybody tries this.
But we all know where this is going, right...? Sic...
Click to expand...
Click to collapse
Its safe to try, as long as you have a .ftf made from your original rom or are prepared to flash one the .303 .ftf's found in the all in one thread
I've flash one week later the 3.195 and my statue dont change.
Sent from my LT30p using xda app-developers app
For people with the lock bootloader cant you unlock it through the official Sony site? i thought Sony allows you to unlock bootloaders on their devices...
schaggo said:
Well, no promises of any kind, but there is that one user which claims that after updating to 3.195 the bootloader status changed from non-unlockable to unlockable.
I have to stress out, I cannot confirm nor explain this and I do not propose that anybody tries this.
But we all know where this is going, right...? Sic...
Click to expand...
Click to collapse
With the official updating or with a ftf file ?
i have a .303 ftf so i can try et do a updating et come back on the .303 with my ftf ? right ?
LegibleEel said:
For people with the lock bootloader cant you unlock it through the official Sony site? i thought Sony allows you to unlock bootloaders on their devices...
Click to expand...
Click to collapse
Sony does, but some carriers (Especially AT&T) block it.
gregbradley said:
Sony does, but some carriers (Especially AT&T) block it.
Click to expand...
Click to collapse
It says I cant unlock my bootloader, I'm with 3UK, if I took it into three store, will they unlock it?
LegibleEel said:
It says I cant unlock my bootloader, I'm with 3UK, if I took it into three store, will they unlock it?
Click to expand...
Click to collapse
You can ask, but I bet they say no.
up to date, any method to unlock it?
Seriously?
I also have this problem, the boot loader is locked and I need to install the recovery. Prompt really working bootloader unlock method, none of the methods I did not ride. Through the website Sony have an error occurs, full of requests to install the update file, it weighs 1.5 gigabytes. I do not have as much Internet traffic to download it.
Currenty is possible if you are both rooted and in FW 303. Try this.

[Q] Unlocked Bootloader, Unrooted OTA Update?

Heyy guys I have a XperiaSP which have unlocked bootloader and unrooted phone (just unrooted it a while ago). I would REALLY like to update my phone because there's too many bug here on Xperia SP. However, when the phone was still rooted I tried to update and it failed. Now after unroot I was going to update but then the fact that I unlocked the bootloader I am really worried about wiping/bricking the phone through OTA update. Any help pls?
P.S - My phone is barely Unlocked. It is nearly as stock and no custom recovery nor root is installed.:laugh:
Edit : By the way, is the Xperia SP really got Wi-Fi issues? My iPod got full signal on home's wifi and my SP got barely 1-2..
hmmm
dhisonnn said:
Heyy guys I have a XperiaSP which have unlocked bootloader and unrooted phone (just unrooted it a while ago). I would REALLY like to update my phone because there's too many bug here on Xperia SP. However, when the phone was still rooted I tried to update and it failed. Now after unroot I was going to update but then the fact that I unlocked the bootloader I am really worried about wiping/bricking the phone through OTA update. Any help pls?
P.S - My phone is barely Unlocked. It is nearly as stock and no custom recovery nor root is installed.:laugh:
Click to expand...
Click to collapse
did u try using PC companion? Is It ok there?
Or else I think you know that Sony's 4.3 update is on the corner. that may will solve your issue
madhukarmohan said:
did u try using PC companion? Is It ok there?
Or else I think you know that Sony's 4.3 update is on the corner. that may will solve your issue
Click to expand...
Click to collapse
Ahh yeah gonna try that ASAP. but I just forgot to mention that my primary laptop is now on service center (Got a bit problem there) so I can't really update my SP through that.
I tried updating just now through OTA. After the reboot a popup message appeared :
"Could not install new software version. Try again."
Is that because of my unlocked bootloader? Cos I unrooted my phone completely through SuperSU.
If so how to relock the bootloader??
If you want to relock the bootloader just use FlashTool. In your case because you don't have any custom Firmware on your phone this should be quite easy.
But I always thought when updating with having root access you can update but lose root. Maybe it didn't work (the update) because of a complete diffenent reason. Did you try it a second time?
Sent from my C5303 using xda app-developers app
Schokonuss said:
If you want to relock the bootloader just use FlashTool. In your case because you don't have any custom Firmware on your phone this should be quite easy.
But I always thought when updating with having root access you can update but lose root. Maybe it didn't work (the update) because of a complete diffenent reason. Did you try it a second time?
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
When I got my laptop back, I'm definitely going to relock the bootloader. But if I do something wrong, will it hard brick or something? (sorry for my parranoidness) and relocking is not much difference from unlocking right?
I tried installing the software update the second time. Unlocked BL, fully unrooted (No Super SU). Still fails gonna try at PCCompanion
dhisonnn said:
When I got my laptop back, I'm definitely going to relock the bootloader. But if I do something wrong, will it hard brick or something? (sorry for my parranoidness) and relocking is not much difference from unlocking right?
I tried installing the software update the second time. Unlocked BL, fully unrooted (No Super SU). Still fails gonna try at PCCompanion
Click to expand...
Click to collapse
You should flash stock ROM using flashtool, relock the bootloader, and then restore the TA partition
Sent from My XSP
Pulsa said:
You should flash stock ROM using flashtool, relock the bootloader, and then restore the TA partition
Sent from My XSP
Click to expand...
Click to collapse
I'm on my stock ROM now (Default Sony ROM right? But I've updated it before, does it count as stock?)
What's TA partition?
Sorry for noob Qs
I never do this before.So can I update my phone via pc companion via unlocked bootloader?On stock rom without root and recovery?
Sent from my C5303 using xda app-developers app
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Schokonuss said:
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
if i didnt make backup (because no one told me to ) i cant install 4.3 update from Sony if comes out ?
Yes, you'll be able to get the 4.3 update without the TA partition. But, as everyone else here said, make sure you're on a stock ROM, with a locked bootloader.
Locked bootloader ----> You can use PC Companion or Flashtool to update your phone
Unlocked bootloader ------> Flashtool only
Also, don't try to update your phone via OTA while having your bootlader unlocked, because it will brick your device.
Schokonuss said:
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
My original Stock Rom had been flashed to CM 10, but now I have flashed it back to stock rom that I tried to search online from this site. Is it counted as original stock rom or not? My phone is unlocked bootloader, and I got ota update but cannot install, I don't know why; maybe it has been changed or maybe of unlock bootloader?

Xperia LT30at: Root, Unlock and Remove AT&T Apps?

In general, I would like ask about unlocking my Xperia LT30AT. I've unlocked a phone before but it has been a long time.
I seem to recall that when I unlocked my first phone, I downloaded a developer kit that you use to root and unlock the device. I am interested in doing that to my LT30at, but I don't want to use any custom roms like Cyanogenmod.
What I would like most of all to do: to
(1) root and unlock the phone,
(2) keep the (functionally) authentic Android OS, and
(3) Get all the AT&T apps off the phone for good.
...but I would settle for just the first one, for starters.
Any suggestions? Thanks! MX
MaxVenkman said:
In general, I would like ask about unlocking my Xperia LT30AT. I've unlocked a phone before but it has been a long time.
I seem to recall that when I unlocked my first phone, I downloaded a developer kit that you use to root and unlock the device. I am interested in doing that to my LT30at, but I don't want to use any custom roms like Cyanogenmod.
What I would like most of all to do: to
(1) root and unlock the phone,
(2) keep the (functionally) authentic Android OS, and
(3) Get all the AT&T apps off the phone for good.
...but I would settle for just the first one, for starters.
Any suggestions? Thanks! MX
Click to expand...
Click to collapse
it's interesting to me for the same model lt30at.
In addition I wanted to know if you lose your 4G LTE Thanks to all who respond
* P.S. many links to files in the root of the sony t is no longer usable
To root this device you should use the flashtool, you can't unlock bootloader at all. Me I rooted it added a recovery. Then flashed a unbranded firmware via the. Recovery. Kept root that caused everything to work pretty Ok now my att TL is rooted with 4.3 with a few bugs
Sent from my LT30p using Tapatalk
---------- Post added at 06:13 PM ---------- Previous post was at 06:12 PM ----------
And you keep lte
Sent from my LT30p using Tapatalk
MaxVenkman said:
In general, I would like ask about unlocking my Xperia LT30AT. I've unlocked a phone before but it has been a long time.
I seem to recall that when I unlocked my first phone, I downloaded a developer kit that you use to root and unlock the device. I am interested in doing that to my LT30at, but I don't want to use any custom roms like Cyanogenmod.
What I would like most of all to do: to
(1) root and unlock the phone,
(2) keep the (functionally) authentic Android OS, and
(3) Get all the AT&T apps off the phone for good.
...but I would settle for just the first one, for starters.
Any suggestions? Thanks! MX
Click to expand...
Click to collapse
Since you want the phone to be rooted, you have only 2 options:
1) If you want to stay on 4.1.2: flash any generic 4.1.2 FTF using Flashtool and exclude the baseband in the process, then root the device.
2) If you want to upgrade to 4.3: follow the guide in my signature.
Bootloader cannot be unlocked.
bsined said:
Since you want the phone to be rooted, you have only 2 options:
1) If you want to stay on 4.1.2: flash any generic 4.1.2 FTF using Flashtool and exclude the baseband in the process, then root the device.
2) If you want to upgrade to 4.3: follow the guide in my signature.
Bootloader cannot be unlocked.
Click to expand...
Click to collapse
Thk bro
Can i update my xperia TL to 4.3 without lock carrier by flashtool ?
belity said:
Thk bro
Can i update my xperia TL to 4.3 without lock carrier by flashtool ?
Click to expand...
Click to collapse
If you update to 4.3 using Flashtool you will lose root access to the device because there is no exploit available yet. Carrier lock is SIM lock and is managed separately from ROMs.
bsined said:
If you update to 4.3 using Flashtool you will lose root access to the device because there is no exploit available yet. Carrier lock is SIM lock and is managed separately from ROMs.
Click to expand...
Click to collapse
Thank bro . My xperia TL bootloader from service menu is : Bootloader unlock allowed : Yes
is it still lock carrier if i update to 4.3 by flashtool ?
belity said:
Thank bro . My xperia TL bootloader from service menu is : Bootloader unlock allowed : Yes
is it still lock carrier if i update to 4.3 by flashtool ?
Click to expand...
Click to collapse
Are you sure it's "bootliader unlock allowed: yes"? LT30at have always come with locked bootloader.
Carrier lock us SIM Lock. As I've said before it's nit affected by any kind of flashing. It's stored in a different location.
bsined said:
Are you sure it's "bootliader unlock allowed: yes"? LT30at have always come with locked bootloader.
Carrier lock us SIM Lock. As I've said before it's nit affected by any kind of flashing. It's stored in a different location.
Click to expand...
Click to collapse
Yes , Bootloader unlock allowed in my device is YES . Firmware is 9.1.F.1.120 , android 4.1.2
So can i update my device to 4.3 ?
You're probably the first person I've seen with a TL with at&t firmware (I'm assuming since it's 120 firmware) that has an unlockable bootloader.
Yea I must 2nd that how did that happen
Sent from my LT30p using Tapatalk

Unlocking bootloader allowed, why not root?

If sony is completely fine with us unlocking hte bootloader, as shown here: http://unlockbootloader.sonymobile.com/unlocking-boot-loader
Why did they make it so difficult to root the device?
Supish said:
If sony is completely fine with us unlocking hte bootloader, as shown here: http://unlockbootloader.sonymobile.com/unlocking-boot-loader
Why did they make it so difficult to root the device?
Click to expand...
Click to collapse
If you can unlock the bootloader it is a very easy 2 second job to root.
But id have to downgrade my firmware. And my data would be erased. Seems so needless
Sent from my C6906 using XDA Premium 4 mobile app
Supish said:
But id have to downgrade my firmware. And my data would be erased. Seems so needless
Sent from my C6906 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
That's only to back up TA upgrading with root from 4.2.2 is to 4.3 or 4.4 is not supported.
Upgrade to stock then unlock
Also I think losing all data is a sacrifice worth it besidesvyou can back up data Sony provides you with the tools or just copy SD card to desktop and restore when done.
OOORRRRRRRR.....
You can get pre-rooted firmware here http://forum.xda-developers.com/showthread.php?t=2711982
Backup TA and unlock(if you want but I'm getting the sense that you just want root)
The last option is the preferred one no downgrade pain nonsense.
And finally to answer your Question: Sony is gonna Sony they say they don't mind you unlocking boot loader but the remove the good stuff like BIONZ. Now just imagine with root in which they never claimed to not mind about.
yup owns Z1 and stuff.
RealiableCandy4 said:
That's only to back up TA upgrading with root from 4.2.2 is to 4.3 or 4.4 is not supported.
Upgrade to stock then unlock
Also I think losing all data is a sacrifice worth it besidesvyou can back up data Sony provides you with the tools or just copy SD card to desktop and restore when done.
OOORRRRRRRR.....
You can get pre-rooted firmware here http://forum.xda-developers.com/showthread.php?t=2711982
Backup TA and unlock(if you want but I'm getting the sense that you just want root)
The last option is the preferred one no downgrade pain nonsense.
And finally to answer your Question: Sony is gonna Sony they say they don't mind you unlocking boot loader but the remove the good stuff like BIONZ. Now just imagine with root in which they never claimed to not mind about.
yup owns Z1 and stuff.
Click to expand...
Click to collapse
Ive checked my phone on *#*#SERVICE#*#* and it says bootloader unlock allowed: no. What do you recommend I do?
Supish said:
Ive checked my phone on *#*#SERVICE#*#* and it says bootloader unlock allowed: no. What do you recommend I do?
Click to expand...
Click to collapse
As for unlocking bootloader there's no hope. But you can still get root by flashing pre-rooted firmware in the link I provided in previous post. Just follow the locked bootloader instructions.
yup owns Z1 and stuff. Also if I've helped you don't forget to hit THANKS - actions speak louder that words.
I did not thought that the first question of the OP was to root the phone ....

[Q] Camera not working after unlockin bootloader 4.4.2

after unlocking the bootloader and rooting the phone
camera is not working at all:crying:
i am new to this world
so please explain how to fix it in details
thanks
zerok911 said:
after unlocking the bootloader and rooting the phone
camera is not working at all:crying:
i am new to this world
so please explain how to fix it in details
thanks
Click to expand...
Click to collapse
in which firmware u unlocked the bootloader and rooted the z1?
If you Unlocked your Bootloader when you was on JB 4.2.2 then you upgraded to KK 4.4.2 then that's the mistake...
eclyptos said:
If you Unlocked your Bootloader when you was on JB 4.2.2 then you upgraded to KK 4.4.2 then that's the mistake...
Click to expand...
Click to collapse
no, i bought the phone with kitkat 4.4.2 on it
all what i wanted is to root the phone, while having the camera working at the same time
but not root and a damaged camera ..
help me out ?!
Something wrong here, i can confirm unlock bootloader on 4.4.2 can't stop camera function. (i unlocked my phone on kitkat firmware 757, all working fine)
I think you did not backup DRM keys too?
Sent from my C6903 using XDA Free mobile app
zerok911 said:
no, i bought the phone with kitkat 4.4.2 on it !
Click to expand...
Click to collapse
Something wrong here too, it not come out of box with Kitkat, so I presume you was thinking you have it but you don't.
If you brought it used then different story, but the story of the phone we don't know.
So I don't know how to help here as Unlock Bootloader on 4.4 do NOT Breaking the camera functionality.
eclyptos said:
Something wrong here too, it not come out of box with Kitkat, so I presume you was thinking you have it but you don't.
If you brought it used then different story, but the story of the phone we don't know.
So I don't know how to help here as Unlock Bootloader on 4.4 do NOT Breaking the camera functionality.
Click to expand...
Click to collapse
I bought it new from Sony with Kitkat on it in middle east -Dubai
The issue is being sorted via PM with me.
However, this is a synopsis.
The OP unlocked the bootloader on 4.4 - Camera works.
Then, instead of just flashing a custom kernel to gain root, the OP followed a guide for a locked bootloader to gain root. Once they downgraded to 4.2 the camera broke.
In order to fix this the solution is
1) Relock the bootloader (by restoring the TA partition if a TA backup was made, in this case not, or by using flashtool)
2) Use pccompanion to upgrade to latest FW
3) Re-unlock the bootloader by the official method (Or flashtool, if it was re-locked with flashtool)
4) Flash a stock based custom kernel
5) Install SuperSU from the play store.
gregbradley said:
The OP unlocked the bootloader on 4.4 - Camera works.
Then, instead of just flashing a custom kernel to gain root, the OP followed a guide for a locked bootloader to gain root. Once they downgraded to 4.2 the camera broke.
.
Click to expand...
Click to collapse
..LOL... that explain all..hahaha...
Hi, is it possible to fix camera if I haven't TA backup?
ekks said:
Hi, is it possible to fix camera if I haven't TA backup?
Click to expand...
Click to collapse
I don't think so if you unlocked on 4.2
If you unlocked on 4.3+ it wont break anyway
try relocking the boot with flashtool, upgrading by pccompanion then unlocking again with flashtool
gregbradley said:
I don't think so if you unlocked on 4.2
If you unlocked on 4.3+ it wont break anyway
try relocking the boot with flashtool, upgrading by pccompanion then unlocking again with flashtool
Click to expand...
Click to collapse
i too broke the camera by doing the same mistake!!!!!........cursing.......what to do now......
my brand new z1.......lemme try this method.......
i dont think i won b able to claim th warranty also.....

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