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[Q] How to get Cyanogenmod on Xperia TL (Lt30at)-locked bootloader

Hey guys, i just rooted my phone and was looking forward to putting the new cyanogenmod rom on my phone, until i found out att has to ruin everything and wont let the bootloader be unlocked. I was looking around for a workaround and some places said it might be possible to do it in recovery mode with CWM..can anyone tell me if this is possible? Is it even possible to do with a locked bootloader? If anyone knows how to do this for the Xperia TL (lt30at) please let me know! Step by step would be great since im new to this. Thanks!!

No its not possible for now.
Sent from my LT25i using Tapatalk 2

Erica Law said:
No its not possible for now.
Sent from my LT25i using Tapatalk 2
Click to expand...
Click to collapse
not even if its done in recovery mode? if not when would a workaround be available?

It's not possible.
No one give you an eta of when it will be possible either
Sent from my C6603 using xda premium

Frosty4810 said:
Hey guys, i just rooted my phone and was looking forward to putting the new cyanogenmod rom on my phone, until i found out att has to ruin everything and wont let the bootloader be unlocked. I was looking around for a workaround and some places said it might be possible to do it in recovery mode with CWM..can anyone tell me if this is possible? Is it even possible to do with a locked bootloader? If anyone knows how to do this for the Xperia TL (lt30at) please let me know! Step by step would be great since im new to this. Thanks!!
Click to expand...
Click to collapse
Unless you have a unlocked bootloader, you cant. Flash an Xperia T firmware to remove all that att bloatware
and If we ever had are bootloader unlocked, we can just flash CM10.1 and it will work.

Man everyone is so nice on here. But in response to that until AT&T allows it nothing that anyone can do about the bootloader. At least it's rooted and you can remove all the crap that was preloaded with the phone. With a few other extra perks of having a rooted phone, the stock OS isn't really all that bad.....
Sent from my LT30at using xda premium

Erica Law said:
No its not possible for now.
Sent from my LT25i using Tapatalk 2
Click to expand...
Click to collapse
AndroidHoneyComb said:
Unless you have a unlocked bootloader, you cant. Flash an Xperia T firmware to remove all that att bloatware
and If we ever had are bootloader unlocked, we can just flash CM10.1 and it will work.
Click to expand...
Click to collapse
If I had a "Not For Sale" AT&T branded Sony Xperia TL and its bootloader is unlocked. Will this help anybody? I wonder how I could flash CM10.1 on it then.I have CWM 6.0.3.0 installed on it but technically that CWM is for 'locked bootloaders' even though my bootloader isn't locked.

If the boot loader is unlocked just flash the cm10 . Zip in recovery
Sent from my LT30p using xda premium

Flashtool
glitchsys said:
If I had a "Not For Sale" AT&T branded Sony Xperia TL and its bootloader is unlocked. Will this help anybody? I wonder how I could flash CM10.1 on it then.I have CWM 6.0.3.0 installed on it but technically that CWM is for 'locked bootloaders' even though my bootloader isn't locked.
Click to expand...
Click to collapse
use xperia T rom most dev support t more than the tl but they can work on both & cwm is for both locked and unlocked BL

About waranty

If I just root my xperia z without unlocking the bootloader, will it void my warranty? Or installing custom rom with locked bl?
Sent from my C6602 using Tapatalk 4 Beta

No.
...Sent from Zed

XperienceD said:
No.
...Sent from Zed
Click to expand...
Click to collapse
I contacted sony customer care now. He said even root without bl unlock will void warranty..!
Sent from my C6602 using Tapatalk 4 Beta

pjgowtham said:
I contacted sony customer care now. He said even root without bl unlock will void warranty..!
Sent from my C6602 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Was pointless starting the thread to ask here then.
...Sent from Zed

XperienceD said:
Was pointless starting the thread to ask here then.
...Sent from Zed
Click to expand...
Click to collapse
May be you not replying for this thread is a way better than giving false answers when dont know the answer.
Sent from my C6602 using Tapatalk 4 Beta

You've had the right answer from me.
...Sent from Zed

Root. Do whatever you want.
Need service? Flash stock before taking the phone to official service.
Same can be said about unlocking the bootloader.
But XperienceD is right, rooting DOES NOT VOID THE WARRANTY.

XperienceD said:
You've had the right answer from me.
...Sent from Zed
Click to expand...
Click to collapse
No offence buddy
Sent from my C6603 using Tapatalk 4 Beta

DrKrFfXx said:
Root. Do whatever you want.
Need service? Flash stock before taking the phone to official service.
Same can be said about unlocking the bootloader.
But XperienceD is right, rooting DOES NOT VOID THE WARRANTY.
Click to expand...
Click to collapse
But the customer care rep told me rooting itself will void the warranty..may be try contacting rep in your country
Sent from my C6603 using Tapatalk 4 Beta

pjgowtham said:
I contacted sony customer care now. He said even root without bl unlock will void warranty..!
Sent from my C6602 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Wrong : The Free Software Foundation Europe argues that it is legal to root or flash any device. According to the European Directive 1999/44/CE, replacing the original operating system with another does not void the statutory warranty that covers the hardware of the device for two years unless the seller can prove that the modification caused the defect, accroding to http://en.wikipedia.org/wiki/Android_rooting
So even if Sony, or the president of the usa, or Thor himself said that void warranty, that's not true.

pjgowtham said:
But the customer care rep told me rooting itself will void the warranty..may be try contacting rep in your country
Sent from my C6603 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I've been there personally. Took my Xperia S, another Xperia S, an X10, and an Arc to service.
All rooted no problems.
I even took my previous Xperia S bootloader unlocked to have the screen replaced. Totally forgot to lock the bootloader. They yelled at me because I wasn't covered by warranty, but they kinda know me already as I buy all my phones over there (they let me play with the Z Ultra too ), they spared my life and didn't charge the 150€ they charge for having the screen replaced without warranty.
Sony service is great here in Spain, if you take the phone personally. Not so much when you have to deal with delivery system.

Awesome.!! but the Sony service rep here in India are kinda dumb. But I can deal with it. Thanks a lot for your help guys
Sent from my C6603 using Tapatalk 4 Beta

pjgowtham said:
No offence buddy
Click to expand...
Click to collapse
None taken.

QualQuek said:
Wrong : The Free Software Foundation Europe argues that it is legal to root or flash any device. According to the European Directive 1999/44/CE, replacing the original operating system with another does not void the statutory warranty that covers the hardware of the device for two years unless the seller can prove that the modification caused the defect, accroding to http://en.wikipedia.org/wiki/Android_rooting
So even if Sony, or the president of the usa, or Thor himself said that void warranty, that's not true.
Click to expand...
Click to collapse
Lemme post this in Sony India Facebook..lemme see what they reply to us..sorry guys I'm so idle here
Sent from my C6603 using Tapatalk 4 Beta

pjgowtham said:
Lemme post this in Sony India Facebook..lemme see what they reply to us..sorry guys I'm so idle here
Sent from my C6603 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Haha sure do it, it's totally legal to root your phone, even in India.

So even phones with unlocked bootloader, they need to prove the damage is because of the software we used! Am I right in this?
Sent from my C6603 using Tapatalk 4 Beta

pjgowtham said:
So even phones with unlocked bootloader, they need to prove the damage is because of the software we used! Am I right in this?
Sent from my C6603 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Yes and no. The service that is in my city is very clear about this. What they told me is that they need to register te parts replaced with their software, maybe serial numbers to keep control what goes in and out,, but they can't do so with the bootloader unlocked as they cannot flash stock firmware with the tools they have.

DrKrFfXx said:
Yes and no. The service that is in my city is very clear about this. What they told me is that they need to register te parts replaced with their software, maybe serial numbers to keep control what goes in and out,, but they can't do so with the bootloader unlocked as they cannot flash stock firmware with the tools they have.
Click to expand...
Click to collapse
Wrong, a phone with a locked bootloader can be flashed by any flash tool made for Xperia Z, it's only if you unlock the bootloader that they can't (SUS and PCC don't work on unlocked bootloader), and btw that void the warranty to unlock the bootloader.
And yes they need prove that the modification caused the defect if any.

QualQuek said:
Wrong, a phone with a locked bootloader can be flashed by any flash tool made for Xperia Z, it's only if you unlock the bootloader that they can't (SUS and PCC don't work on unlocked bootloader), and btw that void the warranty to unlock the bootloader.
And yes they need prove that the modification caused the defect if any.
Click to expand...
Click to collapse
Read again.

DrKrFfXx said:
Read again.
Click to expand...
Click to collapse
Yep you said it sorry

Would unbranded firmware install fine on branded z1?

I have C6906 from Bell and i can't wait for bell to release 4.3
can i just flash unbranded 257 using flash tool
and use pc companion to update to 290?
my phone is not sim unlocked yet / never touched boot-loader / didn't even bother rooting it.
I am still on stock 534
thanks in advance guys

yes

As Greg already said - yes.
Branded version is same ROM but without a craps from your carrier.
So, not only you'll be able to flash it without any problems but you'll be very happy when you see that your phone is little bit faster and "cleaner".
Also, if you want to unlock SIM lock (if it's available on your device), you can do that by simple code order via Internet.
Sent from my Z1

gregbradley said:
yes
Click to expand...
Click to collapse
funky0308 said:
As Greg already said - yes.
Branded version is same ROM but without a craps from your carrier.
So, not only you'll be able to flash it without any problems but you'll be very happy when you see that your phone is little bit faster and "cleaner".
Also, if you want to unlock SIM lock (if it's available on your device), you can do that by simple code order via Internet.
Sent from my Z1
Click to expand...
Click to collapse
Thanks guys!
I see few postings about problems upgrading such as losing imei or sim not accepting. since my z1 isnt rooted i wont be able to make any ta backups. Am i still clear to go?
Sent from my C6906 using XDA Premium 4 mobile app

choihan06 said:
Thanks guys!
I see few postings about problems upgrading such as losing imei or sim not accepting. since my z1 isnt rooted i wont be able to make any ta backups. Am i still clear to go?
Sent from my C6906 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
yes

I started with an EE Z1. Since then it's been generic European, generic global, and currently on Generic Nordic (so I can have 4.3). You'll be.fine
Sent from my C6903 using xda app-developers app

choihan06 said:
I have C6906 from Bell and i can't wait for bell to release 4.3
can i just flash unbranded 257 using flash tool
and use pc companion to update to 290?
my phone is not sim unlocked yet / never touched boot-loader / didn't even bother rooting it.
I am still on stock 534
thanks in advance guys
Click to expand...
Click to collapse
I've got the same phone from bell. First thing I did was flash an unbranded ROM. Bell has a few bloat apps that I hate. Best part is if you flash unbranded you don;t need to wait for updates. I got my update through PC Companion the day it was released.

Search the forums please.
choihan06 said:
I have C6906 from Bell and i can't wait for bell to release 4.3
can i just flash unbranded 257 using flash tool
and use pc companion to update to 290?
my phone is not sim unlocked yet / never touched boot-loader / didn't even bother rooting it.
I am still on stock 534
thanks in advance guys
Click to expand...
Click to collapse
Already been discussed here in detail.
Sony Xperia Z1 > Xperia Z1 Q&A, Help & Troubleshooting > Debrand xperia Z1?

I'm also on Bell with a c6906 and have done exactly what you are asking about and you will be fine. In case you didn't know we can't unlock our bootloader so the fix in 4.3 does not benefit us. Still 4.3 is a great update, loving the phone regardless.

metal_god69 said:
I'm also on Bell with a c6906 and have done exactly what you are asking about and you will be fine. In case you didn't know we can't unlock our bootloader so the fix in 4.3 does not benefit us. Still 4.3 is a great update, loving the phone regardless.
Click to expand...
Click to collapse
arggg we can't unlock bootloader? then no custom kernels, recoverys and roms are available for our phone? man i should grab one from sony.. screw bell lol

choihan06 said:
arggg we can't unlock bootloader? then no custom kernels, recoverys and roms are available for our phone? man i should grab one from sony.. screw bell lol
Click to expand...
Click to collapse
Copy *#*#7378423#*#* to your phone dialer and it will open up a service menu. Go to Service info then Configuration. The last line in that screen will say Boot loader unlocked allowed: No
So we are outta luck.
Sent from my C6906 using xda app-developers app

metal_god69 said:
Copy *#*#7378423#*#* to your phone dialer and it will open up a service menu. Go to Service info then Configuration. The last line in that screen will say Boot loader unlocked allowed: No
So we are outta luck.
Sent from my C6906 using xda app-developers app
Click to expand...
Click to collapse
I guess.. it says NO,
i guess I should have bought unlocked one from sony store..

choihan06 said:
Thanks guys!
I see few postings about problems upgrading such as losing imei or sim not accepting. since my z1 isnt rooted i wont be able to make any ta backups. Am i still clear to go?
Sent from my C6906 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Losing IMEI and SIM not accepted problems happen when you downgrade, not update.

How to Overclock Xperia T?

Hello,
I Have a rooted Sony Xperia T,
How can I overclock it?
I can't seem to find any thread about it..

Colin7 said:
Hello,
I Have a rooted Sony Xperia T,
How can I overclock it?
I can't seem to find any thread about it..
Click to expand...
Click to collapse
You need a custom kernel. And to install one, you need an unlocked bootloader.. which will break your warranty on many cases, so be careful
Sent from my LT25i using xda app-developers app

WhiteNeo said:
You need a custom kernel. And to install one, you need an unlocked bootloader.. which will break your warranty on many cases, so be careful
Sent from my LT25i using xda app-developers app
Click to expand...
Click to collapse
Already unlocked my bootloader,
Sorry, I'm a rookie at android devices, where can I get a custom kernel
And what do i need to do after that?

EDIT: It seems we replied at the same time! haha.. nevermind what I said below then....
Also note that a lot of our Xperia T's bootloaders are NOT unlockable. There is a code you can dial on your phone to take you to a service menu where it will tell you if your bootloader is unlockable. If it says No, then your bootloader simply cannot be unlocked. Then you can join the many of us who patiently pray and wait for someone out there to crack or work around it

LaZiODROID said:
EDIT: It seems we replied at the same time! haha.. nevermind what I said below then....
Also note that a lot of our Xperia T's bootloaders are NOT unlockable. There is a code you can dial on your phone to take you to a service menu where it will tell you if your bootloader is unlockable. If it says No, then your bootloader simply cannot be unlocked. Then you can join the many of us who patiently pray and wait for someone out there to crack or work around it
Click to expand...
Click to collapse
:laugh:

Colin7 said:
Already unlocked my bootloader,
Sorry, I'm a rookie at android devices, where can I get a custom kernel
And what do i need to do after that?
Click to expand...
Click to collapse
Look for a kernel in the XT Development section..
As far as I know, you need to flash it via Flashtool. But I still have locked bl, so you better ask someone with more experience
Sent from my LT25i using xda app-developers app

[Q] Unlock bootloader

Hey guys. I'm trying to unlock my booaloader of my Xperia Z C6603.
When I go to the service menu and check it says "Bootloader unlock allowed: No".
The point is, that I haven't bought my phone from a carrier, it's unlocked from factory and I don't know why I can't unlocked it

If it says "No", then it's permanently locked.
Did you purchase it brand new, directly from a store or used from a third party?
Sent from my C6603 using Tapatalk

kingvortex said:
If it says "No", then it's permanently locked.
Did you purchase it brand new, directly from a store or used from a third party?
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
I bought it second hand from ebay

plamen97 said:
I bought it second hand from ebay
Click to expand...
Click to collapse
Then it's possible that the seller flashed generic software on a carrier supplied phone that they network unlocked before selling it to you.
You should contact Sony support and they should be able to confirm this if you supply your IMEI number.
Sent from my C6603 using Tapatalk

kingvortex said:
Then it's possible that the seller flashed generic software on a carrier supplied phone that they network unlocked before selling it to you.
You should contact Sony support and they should be able to confirm this if you supply your IMEI number.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
I contacted Sony and my phone was branded to Three UK, so I can't unlock the bootloader

plamen97 said:
I contacted Sony and my phone was branded to Three UK, so I can't unlock the bootloader
Click to expand...
Click to collapse
Sorry to hear that.
Did the seller advertise it as an unbranded phone? Perhaps you can contact eBay to see if something can be done, even if it's some time after purchase. It's worth a try.
Sent from my C6603 using Tapatalk

I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?

plamen97 said:
I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
Click to expand...
Click to collapse
You cannot unlock a BL locked phone using flashtool.
If you want a different rom there are plenty of stock based custom roms just use the search function

plamen97 said:
I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
Click to expand...
Click to collapse
It 100% won't work. You may soft brick the device, but most probably it will just fail with no adverse effect.
Sent from my C6603 using Tapatalk

androidtweaker1 said:
You cannot unlock a BL locked phone using flashtool.
If you want a different rom there are plenty of stock based custom roms just use the search function
Click to expand...
Click to collapse
I know, but I want Paranoid and to have it I need a custom kernel :/