Problem with recovery z1 Help please. - Xperia Z1 Q&A, Help & Troubleshooting

Ok so i've made a mistake, fortunately I can still use my phone but i'm in unfamiliar territory.
What I did was download the 4.3 Rom by RomAur, installed the rom and the recovery as per the instructions within the thread, then rebooted to flashmode and entered flashtool so I could flash the kernel and baseband from 290, but made the mistake of excluding kernel and baseband and flashing the only other option which was BOOTBUNDLE, and since then my recovery has been inaccessible.
I've reflashed the dual recovery but it won't allow me to access it via the power on up or down method or the adb reboot recovery method.
I really can't continue with this phone or flash anything without a working recovery, does anyone have any idea how to get my recovery back please??
Any help would be appreciated.
I'm also wanting to unlock the bootloader but without a working recovery i'm a little hesitant to begin.
Phone: Sony Z1 C6903
Rom: RomAur v4.0
Bootloader status: Locked

Flash the kernel and baseband from 290 in flashtool then.

gregbradley said:
Flash the kernel and baseband from 290 in flashtool then.
Click to expand...
Click to collapse
Well i've gone and downgraded but used an unbranded ftf, which has now taken over my IMEI, which now reads 0000000000000000.
In a bad way here and stuck in work with limited internet, i'm now back on a 534 rom and feel like smashing this thing up.
Going home soon so will sit down and go through it all again from scratch, wish i'd just left it on my old monx rom now.
Bad times.
Any other ideas Greg ? Or anyone else?

just upgrade back, I believe you get your IMEI back that way..
The problem you are having is that you need unlocked boot to get a properly working recovery and root on 4.3

gregbradley said:
just upgrade back, I believe you get your IMEI back that way..
The problem you are having is that you need unlocked boot to get a properly working recovery and root on 4.3
Click to expand...
Click to collapse
Ah i see, well i'm downloading an ftf which is t-mobile 534, it's the closest thing i could get to EE, as at the moment i have no recovery and no root.
So should i do this in this order.
get this tmobile 534 and re root and get recovery, i imagine at this point my IMEI will still be missing (hopefully not) then what would you do?
Update to 4.3 by using one of those roms? and then unlock the bootloader? As thats where I ended up losing recovery, i'm thinking thats maybe down to me flashing boot bundle instead of kernel and baseband through flash tool.
Also doesn't unlocking the bootloader require system rw access?
And thanks by the way Greg, i appreciate your help.

Same thing happened to me. So I flashed Nordic 4.3 kept my data booted then flashed the kernel that comes with twrp. So far everything is great
Sent from my C6903 using xda app-developers app

1) Update to 4.3 using a FTF of your choice.
2) Unlock bootloader (This will wipe system and internal memory so have a backup of internal sdcard)
3) Flash any of the three kernels from the top of this post, I am using the third one with philz recovery.
4) enter recovery and flash the SuperSU.zip found in that same post.
Done.
You do not need root to unlock bootloader. The kernels have the recovery incorporated into them

pikeylfc said:
Same thing happened to me. So I flashed Nordic 4.3 kept my data booted then flashed the kernel that comes with twrp. So far everything is great
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
How do you flash a rom without a recovery though? sideload? Not sure, but nevermind, i ended up doing what i said i was going to do and now i'm back online and have re rooted but still on 4.2, will probably stay on 4.2 until 4.3 is 100%
Not being able to use things was too much of a pain in the arse.
Cheers by the way m8

gregbradley said:
1) Update to 4.3 using a FTF of your choice.
2) Unlock bootloader (This will wipe system and internal memory so have a backup of internal sdcard)
3) Flash any of the three kernels from the top of this post, I am using the third one with philz recovery.
4) enter recovery and flash the SuperSU.zip found in that same post.
Done.
You do not need root to unlock bootloader. The kernels have the recovery incorporated into them
Click to expand...
Click to collapse
Ahh that sounds simple enough, cheers m8, well i'll maybe give that a whirl as i'm at home and obviously my internal has been wiped anyway, got a back up in work so i'm running on minimum until i go back there.
While i'm in this state i may as well give it a go.
Cheers Greg, will let you know here if it worked out.

gregbradley said:
1) Update to 4.3 using a FTF of your choice.
2) Unlock bootloader (This will wipe system and internal memory so have a backup of internal sdcard)
3) Flash any of the three kernels from the top of this post, I am using the third one with philz recovery.
4) enter recovery and flash the SuperSU.zip found in that same post.
Done.
You do not need root to unlock bootloader. The kernels have the recovery incorporated into them
Click to expand...
Click to collapse
Well i've not attempted the unlock because after following the instructions it says in my phone that my bootloader cannot be unlocked.
I downloaded a vodafone UK ftf if that makes any difference, i got my phone from EE.
I noticed that you said to someone that they couldn't unlock the bootloader if it said that? Is there no way around it?

dladz said:
I noticed that you said to someone that they couldn't unlock the bootloader if it said that? Is there no way around it?
Click to expand...
Click to collapse
Bootloader Unlocking Allowed: NO
You can't unlock bootloader. Is impossible and no confirmation if even will be in some "unofficial" way.

eclyptos said:
Bootloader Unlocking Allowed: NO
You can't unlock bootloader. Is impossible and no confirmation if even will be in some "unofficial" way.
Click to expand...
Click to collapse
Yea i've just learnt that from Greg, that is ridiculous, I've never had a phone that this has happened to.
First and last Sony i ever buy, period.
Cheers.

dladz said:
Yea i've just learnt that from Greg, that is ridiculous, I've never had a phone that this has happened to.
First and last Sony i ever buy, period.
Cheers.
Click to expand...
Click to collapse
So if you know why you opening a new thread? We are here to learn, what the difference if I said what he said 100 times, is because I do not have 1000thanx. Still the source good and confirmed.

dladz said:
Yea i've just learnt that from Greg, that is ridiculous, I've never had a phone that this has happened to.
First and last Sony i ever buy, period.
Cheers.
Click to expand...
Click to collapse
Get your Sony phones from Vodafone, all 3 of my Xperia T's and my Z1 have been able to be unlocked.
Sent from my C6903 using XDA Premium 4 mobile app

eclyptos said:
So if you know why you opening a new thread? We are here to learn, what the difference if I said what he said 100 times, is because I do not have 1000thanx. Still the source good and confirmed.
Click to expand...
Click to collapse
Oh i'm sorry, i'm just coming to terms with myself being shafted by yet another company, i'm sorry i didn't click the damn thanks button, there i clicked it is that ok ?
I learnt about the answer to my thread after i'd heard from Greg, I don't plant one seed i plant several, I find out what i need to know quickly because my life doesn't give me time very often.
Apologies if i seem harsh, i'm not in a very good mood at the moment.

gregbradley said:
Get your Sony phones from Vodafone, all 3 of my Xperia T's and my Z1 have been able to be unlocked.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
So what youre saying is that if the phones unlocked then the bootloader unlock will work?
I seriously can't have an android phone as restricted as this.

dladz said:
Apologies if i seem harsh, i'm not in a very good mood at the moment.
Click to expand...
Click to collapse
I understand.
dladz said:
I seriously can't have an android phone as restricted as this.
Click to expand...
Click to collapse
Agree with you.

dladz said:
So what youre saying is that if the phones unlocked then the bootloader unlock will work?.
Click to expand...
Click to collapse
No, just that Vodafone do not restrict the boot loader
Sent from my C6903 using XDA Premium 4 mobile app

gregbradley said:
No, just that Vodafone do not restrict the boot loader
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Is there any solid data on how/why some Z1s cannot be bootloader unlocked? I have a C6906 from Overseas Electronics which I think was sourced from Canda and cannot be BL unlocked, though it's sim unlocked and otherwise works fine on AT&T LTE.
I found a thread/post here mentioning that Sony may be able to "fix" these devices (and possibly for free, at that). I'm going to run down that angle, but if there's any technical data on what could be preventing the BL unlock I'd be very interested in doing some legwork on my own.

xasbo said:
Is there any solid data on how/why some Z1s cannot be bootloader unlocked? I have a C6906 from Overseas Electronics which I think was sourced from Canda and cannot be BL unlocked, though it's sim unlocked and otherwise works fine on AT&T LTE.
I found a thread/post here mentioning that Sony may be able to "fix" these devices (and possibly for free, at that). I'm going to run down that angle, but if there's any technical data on what could be preventing the BL unlock I'd be very interested in doing some legwork on my own.
Click to expand...
Click to collapse
Not too sure mate, think its coded not to be unlockable, in which case someone would have to do quite a bit of digging to undo whatever was done. And seeing as that the vast majority of people knew to buy from a source that doesn't have the NO to unlocking the BL I would say that its not going to happen any time soon. I usually do a bit of digging before I buy a phone, rushed into this one and I'm paying for it now.
I'll check out that link you put up, maybe there's hope yet.
Edit: as for the link you put up, that's just for the sim lock.
If you want an unlockable phone then you'll either have to claim from a 3rd party insurer an hope that they give you an unlocked phone or contact Sony for an RMA and hope that they give you one. Otherwise I can't see it.
But in all fairness your missing custom kernels and aosp type ROMs. Most everything else will work fine, including all (well most) the ROMs that are in the android development section, so that's not a total loss by any means.
When roots fixed completely for 4.3, well see more.
Sent from my C6903 using XDA Premium 4 mobile app

Related

Bootloader Unlock Code - and locked bootloaders

Dear all,
Just as you might already know, not all Xperia Z are blessed with having an unlocked bootloader .... it apparently is something related to the carrier though and not to Sony themselves. As it happens if your bootloader is locked and is NOT unlockable you can still head to the website and get your unlock code by putting in your IMEI.
Now that's weird ...... Now just wondering if the same procedure could be applied to get the device bootloader unlocked ....
Regs
Al
No it's impossible,fastboot will return an error.
Sent from my C6603 using xda premium
gm007 said:
No it's impossible,fastboot will return an error.
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
Yes true but then again why does the Sony bootloader unlock site still provide an unlock code for locked bootloader xperia z's? This implies that the unlock code is used by Sony technicians to unlock bootloaders ... it's only a matter of determining what that procedure is .... This is definitely being used by carriers.
Really interested to know this for certain, I just got a Z on o2 UK and am a little disappointed that I can't flash any roms. I don't think I can live with stock for ever! Had previously purchased a (dreadful) bootloader locked xperia play which had the 'bootloader allow unlock' set to 'no' which a helpful guy on here managed to change to a 'yes' for the reasonable sum of £10 but this was using testpoint method which obviously won't work on a Z as it's sealed.
If the answer is definately a no to unlocking the bootloader even 'unofficially' then I think i'll have to send this phone back and try my luck with a different phone (an ugly S4 probably). I really do love this phone but I also love being able to change my roms as often as I like to whatever I like.
In the past a bounty would have attracted some devs to work out a cunning plan but if this is not possible at all then theres no point
Anyone know for sure?
Maybe if you change your customization and download a generic cust. ROM, you could probably unlock the bootloader?
If you backup you data and create an ftf for your current cust, you should be able to restore if it doesn't work.
Use the first guide to get an ftf of your stock ROM.
Second to check what generic customization you'd like to download.
Third to change your customization and download & get the appropriate ftf.
Flash the ftf using flashtool.
Relevant guides:
[NOOBS GUIDE] Create your own stock firmware FTF & Flashtool flashing guide[+ pics]
[INFO] Latest firmware version per customization (region/branding) {18-Jul-2013}
[GUIDE] Download ANY firmware customization from Sony & create an FTF with Flashtool
This is pretty much at your own risk. I'm not sure if this will work either.
Alcatrazx said:
Dear all,
Just as you might already know, not all Xperia Z are blessed with having an unlocked bootloader .... it apparently is something related to the carrier though and not to Sony themselves. As it happens if your bootloader is locked and is NOT unlockable you can still head to the website and get your unlock code by putting in your IMEI.
Now that's weird ...... Now just wondering if the same procedure could be applied to get the device bootloader unlocked ....
Regs
Al
Click to expand...
Click to collapse
The unlock code is generated from the imei number I think, so putting in any imei number will return an unlock code.
Try it.
kgs1992 said:
Maybe if you change your customization and download a generic cust. ROM, you could probably unlock the bootloader?
If you backup you data and create an ftf for your current cust, you should be able to restore if it doesn't work.
Use the first guide to get an ftf of your stock ROM.
Second to check what generic customization you'd like to download.
Third to change your customization and download & get the appropriate ftf.
Flash the ftf using flashtool.
Relevant guides:
[NOOBS GUIDE] Create your own stock firmware FTF & Flashtool flashing guide[+ pics]
[INFO] Latest firmware version per customization (region/branding) {18-Jul-2013}
[GUIDE] Download ANY firmware customization from Sony & create an FTF with Flashtool
This is pretty much at your own risk. I'm not sure if this will work either.
Click to expand...
Click to collapse
One guy claimed he done this but never came out with exact step by step instructions so no proof in this.
I previously tried every combination with no avail. as seen in previous threads about unlocking bootloaders we need alot of work done by a dev who knows what he is doing, sony have really tied up the security on these phones.
jonnycarter said:
One guy claimed he done this but never came out with exact step by step instructions so no proof in this.
I previously tried every combination with no avail. as seen in previous threads about unlocking bootloaders we need alot of work done by a dev who knows what he is doing, sony have really tied up the security on these phones.
Click to expand...
Click to collapse
Well, it was a suggestion, you can try it if you want to.
If it doesn't work, then the only possible way is to somehow flash a bootloader that allows itself to be unlocked and this, I suppose, will require bypassing security.
The bootloader is usually not flashable and flashing an unsigned bootloader is even harder.
Reverse engineering bootloaders requires experience and involves a considerable amount of risk.
And that's only half the struggle. You also need to think about how you're going to flash it onto your phone.
emuni said:
Really interested to know this for certain, I just got a Z on o2 UK and am a little disappointed that I can't flash any roms. I don't think I can live with stock for ever! Had previously purchased a (dreadful) bootloader locked xperia play which had the 'bootloader allow unlock' set to 'no' which a helpful guy on here managed to change to a 'yes' for the reasonable sum of £10 but this was using testpoint method which obviously won't work on a Z as it's sealed.
If the answer is definately a no to unlocking the bootloader even 'unofficially' then I think i'll have to send this phone back and try my luck with a different phone (an ugly S4 probably). I really do love this phone but I also love being able to change my roms as often as I like to whatever I like.
In the past a bounty would have attracted some devs to work out a cunning plan but if this is not possible at all then theres no point
Anyone know for sure?
Click to expand...
Click to collapse
send it back & go shopping at Phones4U... all fones from them are unbranded
PNuT. said:
send it back & go shopping at Phones4U... all fones from them are unbranded
Click to expand...
Click to collapse
I really would but I haggled a good deal with o2, £12 a month cheaper than what phones4u advertised with a free Z.
I am probably going to send it back though, just a shame as I really like this phone! Could always try phones4u and see if they will offer the same deal. I should have really thought about the possibility of permanently locked bootloader before I ordered it, after all the grief I had with my old xperia play.
So it definately can't be changed ever if it's set to disallow bootloader unlock?
emuni said:
I really would but I haggled a good deal with o2, £12 a month cheaper than what phones4u advertised with a free Z.
I am probably going to send it back though, just a shame as I really like this phone! Could always try phones4u and see if they will offer the same deal. I should have really thought about the possibility of permanently locked bootloader before I ordered it, after all the grief I had with my old xperia play.
So it definately can't be changed ever if it's set to disallow bootloader unlock?
Click to expand...
Click to collapse
when i went into P4U they said they would match anything i had seen... worth a try
PNuT. said:
when i went into P4U they said they would match anything i had seen... worth a try
Click to expand...
Click to collapse
So can no devs lend a hand to this issue. A lot of people with Xperia Z's are affected by this issue.
It's all down to the TA partition. If it contains "bootloader unlock allowed = no" then you are screwed. Trying to modify it or flash someone else's TA results in an unrecoverable, permanent HARDBRICK, regardless of what bootloader or kernel is flashed
Sent from my C6603 using xda app-developers app
What if happened to sweeten the pot a little and offer £100 sterling to anyone who can successfully unlock a locked a permanently unlocked bootloader.
I'm on 3 with the bootloader so say permanently locked. If you can unlock it. The money is yours.
£100 via PayPal or direct account transfer.
Sent from my C6603 using xda app-developers app
Kirkymole said:
What if happened to sweeten the pot a little and offer £100 sterling to anyone who can successfully unlock a locked a permanently unlocked bootloader.
I'm on 3 with the bootloader so say permanently locked. If you can unlock it. The money is yours.
£100 via PayPal or direct account transfer.
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
There is an ongoing bounty thread if you would like to post there as well.
http://forum.xda-developers.com/showthread.php?t=2287897&page=39
nice idea!
i'm in with another 50 euros!
deyanimay said:
There is an ongoing bounty thread if you would like to post there as well.
http://forum.xda-developers.com/showthread.php?t=2287897&page=39
Click to expand...
Click to collapse
That's a forum for the T isn't it? I can't see properly as I'm on my phone....
Sent from my C6603 using xda app-developers app
bounty hunters, where are you?
kgs1992 said:
Well, it was a suggestion, you can try it if you want to.
If it doesn't work, then the only possible way is to somehow flash a bootloader that allows itself to be unlocked and this, I suppose, will require bypassing security.
The bootloader is usually not flashable and flashing an unsigned bootloader is even harder.
Reverse engineering bootloaders requires experience and involves a considerable amount of risk.
And that's only half the struggle. You also need to think about how you're going to flash it onto your phone.
Click to expand...
Click to collapse
I would like to point out something. Now I know these two things aren't the same, but I'd like to use it as an example. The Xperia Z's bootloader is locked, obviously lol, I've been modding xboxs and ps3s for a long time, and from that experience I think it can relate to this. Why? Well, from my experiance,on the xbox you can't put a custom dashboard unless you JTAG it, although you can get free games if you flash the chip on the disc drive but that's all. with saying that, it's like saying, you can put custom funcions in the Z but you can't change the ROM. So with the xbox, before you're allowed to flash a custom dashboard, you have to unlock your NAND software, with a ps3 (made by sony lol) you can flash a custom firmware if your on firmware 3.55 but if you're above that, you need an e3 flasher to flash your NOR or NAND chip to downgrade and mod it, one time with the ps3 there was a thing called a E3 Stick, I believe it was called that, i can't remember, and with the e3 stick it wpuld exploit the system cause it was a certain type of board it was build with... So if we'd be able to maybe, find a way to exploit the bootloader, or possibly JTAG it or flash it then I think we'd be able to achieve our goal of putting a custom ROM. The problem with the JTAG or flash theory is that we'd have to open the Xperia Z, so as another theory now, we find a device that we plug into the phone and exploits it to let us flash any ROM we want. just like samsung devices, if the phone gets hard bricked and it doesn't turn on anymore,fried, or if you want to reset the flash count you'd use a JIG to put it into download mode and flash any ROM you want to save the device.
Is there a possible way to unlock on the fly? Like not need a computer? I have the unlockcode
Sent from my C6603 using xda app-developers app
demon2112 said:
Is there a possible way to unlock on the fly? Like not need a computer? I have the unlockcode
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
No. The phone needs to be in fastboot mode to unlock the bootloader. The only way to send commands to the bootloader is via a PC.
Sent from my C6603 using Tapatalk

Bootloader unlock says no but o2 say I can still unlock my bootloader

My bootloader allowed lock says no but o2 on pay monthly say I can still unlock my bootloader. They took my imei number and are processing the lock and I have to wait for a email and this can take 7 working days to process. Has any one else done this? As I'm still in my 14 day peace of mind and might send back but they do say will be able to unlock my bootloader
Edit
Just had a email to unlock my phone to any network so just unlocked and it still says bootloader unlock allowed no
But they said I could, do I just try it?
Sent from my C6603 using xda premium
I hope you have done it like this?
http://forum.xda-developers.com/showthread.php?t=2153261
Took me seven seconds yesterday to get the unlock key on mail
danlivesey said:
My bootloader allowed lock says no but o2 on pay monthly say I can still unlock my bootloader.
Click to expand...
Click to collapse
No they don't, the code you have isn't for unlocking the bootloader, just the SIM.
Before even trying to unlock the BL, I'd suggest your TA partition just in case.
Mine also said no at first, but I was still able to unlock it.
Dsteppa said:
Before even trying to unlock the BL, I'd suggest your TA partition just in case.
Mine also said no at first, but I was still able to unlock it.
Click to expand...
Click to collapse
Who did you get the phone from? Mine is from Three UK and resolutely does not let me unlock the bootloader. Did you use the Sony method? Which rom etc?
nikc0069 said:
Who did you get the phone from? Mine is from Three UK and resolutely does not let me unlock the bootloader. Did you use the Sony method? Which rom etc?
Click to expand...
Click to collapse
Hmm stock Rom unbranded, bought it in the Netherlands. Most people here that bought the same phone aren't able to unlock their BL, maybe I just got lucky. The trick that worked for me was simply rooting the phone.
Dsteppa said:
Hmm stock Rom unbranded, bought it in the Netherlands. Most people here that bought the same phone aren't able to unlock their BL, maybe I just got lucky. The trick that worked for me was simply rooting the phone.
Click to expand...
Click to collapse
I think you did just get lucky or you just got a sim free handset by the luck of the draw. Which root method did you use? Someone else posted that they tried a specific combo of roms and two tries to unlock before it worked but never fed back any more info so it is possible there is an exploit somewhere.
nikc0069 said:
I think you did just get lucky or you just got a sim free handset by the luck of the draw. Which root method did you use? Someone else posted that they tried a specific combo of roms and two tries to unlock before it worked but never fed back any more info so it is possible there is an exploit somewhere.
Click to expand...
Click to collapse
Used the one I attached, can't really remember the topic.
Need to have USB debugging on.
Cheers. And the exact process? Step by step. I know it is tedious but it may be the tiniest thing (eg when you detached the usb cable or whether the sd card was in) that holds the secret.
Sent from my C6603 using xda premium
nikc0069 said:
Cheers. And the exact process? Step by step. I know it is tedious but it may be the tiniest thing (eg when you detached the usb cable or whether the sd card was in) that holds the secret.
Click to expand...
Click to collapse
Give up chasing it, if it was at all possible then it would have been figured out by now.
nikc0069 said:
Cheers. And the exact process? Step by step. I know it is tedious but it may be the tiniest thing (eg when you detached the usb cable or whether the sd card was in) that holds the secret.
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
I really don't remember, since I've unlocked my BL I just flash a zip to get root back.
I firmly believe in Xda being able to make the impossible, possible. And there are no flawless systems. However I get what you mean, and don't think anyone is going to push on it now. Xperia Z is still a great phone and here is hoping the upcoming Google Edition will give us with locked bl more choice.
Sent from my C6603 using xda premium

[Q] Xperia T (LT30a) Locked + Custom Roms

Hey all,
I've been using my Xperia T on the Rogers network here in Canada for a couple months and wanted to throw a custom rom on it.
After doing some research unfortunately it is Not possible to unlock my bootloader. There is also no way to boot into "Recovery Mode" which I assume has something to do with the locked bootloader.
I've noticed that you can downgrade to .303 but those roms look like they are for LT30p. Will they work with my LT30a?
I was hoping to get a version of CM on my phone. Is it even possible? I've read that maybe I can load certain roms but will be unable to modify the kernel? Will that work ok?
Thanks for you time!
Basttrax said:
Hey all,
I've been using my Xperia T on the Rogers network here in Canada for a couple months and wanted to throw a custom rom on it.
After doing some research unfortunately it is Not possible to unlock my bootloader. There is also no way to boot into "Recovery Mode" which I assume has something to do with the locked bootloader.
I've noticed that you can downgrade to .303 but those roms look like they are for LT30p. Will they work with my LT30a?
I was hoping to get a version of CM on my phone. Is it even possible? I've read that maybe I can load certain roms but will be unable to modify the kernel? Will that work ok?
Thanks for you time!
Click to expand...
Click to collapse
if you are willing to go for CM then the answer is NO. you need to have a BL unlocked device with you. did you check with http://unlockbootloader.sonymobile.com ? and your mobile as well to confirm whether it is unlock-able or not. Check Here ..
but even with a locked BL you can install custom ROMs to spice your device. there are some ROMs which are specifically designed to be used with locked BLs.. that means they will run on Stock Kernel with customer ROMs.. .. for my LT30at (BL locked) i'm using a custom ROM
Yes it is indeed locked and cannot be unlocked. There's one Rom for my device I saw but it looked dated.
Rom suggestions for a locked bootloader?
Sent from my LT30a using XDA Premium 4 mobile app
Basttrax said:
Yes it is indeed locked and cannot be unlocked. There's one Rom for my device I saw but it looked dated.
Rom suggestions for a locked bootloader?
Sent from my LT30a using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You should be able to use any of the custom ROMs in the development section for locked bootloaders. I have an LT30at and I have used all of the ones in there at different times.
Basttrax said:
Hey all,
I've been using my Xperia T on the Rogers network here in Canada for a couple months and wanted to throw a custom rom on it.
After doing some research unfortunately it is Not possible to unlock my bootloader. There is also no way to boot into "Recovery Mode" which I assume has something to do with the locked bootloader.
I've noticed that you can downgrade to .303 but those roms look like they are for LT30p. Will they work with my LT30a?
I was hoping to get a version of CM on my phone. Is it even possible? I've read that maybe I can load certain roms but will be unable to modify the kernel? Will that work ok?
Thanks for you time!
Click to expand...
Click to collapse
The link in my signature may be of use to you
you CAN boot into recovery mode but you have to install it first http://forum.xda-developers.com/showthread.php?t=2012738&highlight=cwm
to install it you must first root your device http://forum.xda-developers.com/showthread.php?t=1886460
rooting may not work for your current up to date rom
so you may have to flash an older rom first (I found one in bin4rys signature) http://uploaded.net/f/bd4cif
Throbin Wood said:
The link in my signature may be of use to you
you CAN boot into recovery mode but you have to install it first http://forum.xda-developers.com/showthread.php?t=2012738&highlight=cwm
to install it you must first root your device http://forum.xda-developers.com/showthread.php?t=1886460
rooting may not work for your current up to date rom
so you may have to flash an older rom first (I found one in bin4rys signature) http://uploaded.net/f/bd4cif
Click to expand...
Click to collapse
So I made it as far as rooting the phone, installing a version of CWM for locked bootladers. But after tying to install two different ROMS for locked bootloaders they both put me into a SONY boot loop that seemed like it would never end.
Basttrax said:
So I made it as far as rooting the phone, installing a version of CWM for locked bootladers. But after tying to install two different ROMS for locked bootloaders they both put me into a SONY boot loop that seemed like it would never end.
Click to expand...
Click to collapse
ok did you go through the CWM menu and wipe the system, data, dalvik cache and so on... before you flashed the rom?
It often takes allot longer to boot up for the first time but no more than... id say 5 minuets if that
Throbin Wood said:
ok did you go through the CWM menu and wipe the system, data, dalvik cache and so on... before you flashed the rom?
It often takes allot longer to boot up for the first time but no more than... id say 5 minuets if that
Click to expand...
Click to collapse
I did. I have some android ROM is experience with previous phones. This is just the first one with a locked boot loader.
Wiped everything etc. Just does the Sony logo. Then goes blank, vibrates once then repeated forever.
Sent from my LT30a using XDA Premium 4 mobile app
Basttrax said:
I did. I have some android ROM is experience with previous phones. This is just the first one with a locked boot loader.
Wiped everything etc. Just does the Sony logo. Then goes blank, vibrates once then repeated forever.
Sent from my LT30a using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Im sorry in not sure i can help you then
but root and cwm is a start lol
you have a different device to me.. did the roms you tried specifically say lt30a?
Throbin Wood said:
Im sorry in not sure i can help you then
but root and cwm is a start lol
you have a different device to me.. did the roms you tried specifically say lt30a?
Click to expand...
Click to collapse
Yeah its a LT30a. Just mybluck buying a phone with a locked boot loader.
Sent from my LT30a using XDA Premium 4 mobile app
Basttrax said:
Yeah its a LT30a. Just mybluck buying a phone with a locked boot loader.
Sent from my LT30a using XDA Premium 4 mobile app
Click to expand...
Click to collapse
you and me both pal
Which roms were you trying to flash
Sent from my LT30p using xda premium
gregbradley said:
Which roms were you trying to flash
Sent from my LT30p using xda premium
Click to expand...
Click to collapse
The first one I tried was made for my phone's model.
http://forum.xda-developers.com/showthread.php?p=40370473
The next one I did was
http://forum.xda-developers.com/showthread.php?t=2240485
The both put me in a Boot spiral.

[Q] Unlock bootloader wipe TA partition ?

Hello.
Im abit new to the forum but here goes.
Ive read tons of posts everywhere and there aint any exact answers anywhere to find.
In the past ive never known about the TA and DRM so happy as i am i just unlocked the bootloader on all the phones and still happy. The latest phone is the Xperia Z1. It has been abit buggy to say the least but im hoping software updates will cure this.
Anyway, i rooted my phone and unlocked the bootloader on the .681 firmware and now i am on .757 firmware. Using Doomlords kernel. I thought id check if i could backup my TA partition after unlocking the bootloader. And from what ive read its suppose to be wiped when you unlock the bootloader.
Well it was no problem backing up the TA partion. All files were there and it came out with no errors. So the question, how is this possible ?
/Jonas740
No, it's been wiped, if you restore that TA you will not relock your phone and you will not get the drm keys back, it's possible because unlocking "wipe "your original ta partition and replaced it, so you have backed up a post unlocking partition, not a pre unlocking partition
Also, please post questions in the correct form
Sent from my C6903 using XDA Premium 4 mobile app
Aha, just wanted to sort things since ppl were saying that it was completely wiped when unlocking bootloader. And when I checked it wasn't.
Although, after numerous tests with the phone I can't understand what use the DRM keys is. Everything works just like it should without them.
Another question though. If I relock my phone with flashtool. What is the way to unlock it after? The official way won't work again I guess?
Sent from my C6903 using xda app-developers app
Jonas740 said:
Aha, just wanted to sort things since ppl were saying that it was completely wiped when unlocking bootloader. And when I checked it wasn't.
Although, after numerous tests with the phone I can't understand what use the DRM keys is. Everything works just like it should without them.
Another question though. If I relock my phone with flashtool. What is the way to unlock it after? The official way won't work again I guess?
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
No it doesn't, you will need to ensure you use flashtool to re unlock. However, you will also need to make sure you have the correct folder tree
I think maybe the newest version of flashtool does this, but there are a couple of posts in DooMLoRDs thread tutorial thread in the development section about it.
The main difference I notice with an unlocked bootloader is the inability to use PCComapnion to update, but that's not a big issue for as I can create the FTF and create a flashable .zip from it....
Ye updating with Sony software won't work nor the over the air update. But that's about it as I've seen.
But I remember on my Sony Xperia V that when I relocked it, then I could use Sony update again and I did so wiping everything before I sent that one to the repair shop. They repaired it and I got it back. All under warranty
The latest update .757 is really buggy, hope they fix it. Phone restarts sometimes when using the camera.
Sent from my C6903 using xda app-developers app
Double thread in the same section? How this is possible?
because
eclyptos said:
Double thread in the same section? How this is possible?
Click to expand...
Click to collapse
because i posted it wrong and couldtn delete it and made the same post in the correct forum and told moderator to delete the wrongly posted one. The moderator moved the thread instead so hence double posting and he kinda locked the wrong thread
No, he locked the one you made second. The first one you made always has priority

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 ....

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