Xperia Z Unlocking bootloader issues - Xperia Z Q&A, Help & Troubleshooting

hey, this is my first post on here.
A while ago I got my Xperia Z which is unlocked to all networks and I checked in the service menu and it said I could unlock the bootloader so I did so and installed my own roms, then it became faulty so I got it repaired but before so I flashed the stock rom on there just incase it was refused to be repaired because of the custom rom.
When I got it back I discovered in the service menu my bootloader can no longer but unlocked and I cannot root it or put CWM on it or anything as I keep getting errors... any advise?
I tried using the original bootloader unlock code I got but the phone rejects it saying something like 'FAILED remote does not have permission' or something along those lines in the CMD while using the fastboot code.

L4WL13T said:
hey, this is my first post on here.
A while ago I got my Xperia Z which is unlocked to all networks and I checked in the service menu and it said I could unlock the bootloader so I did so and installed my own roms, then it became faulty so I got it repaired but before so I flashed the stock rom on there just incase it was refused to be repaired because of the custom rom.
When I got it back I discovered in the service menu my bootloader can no longer but unlocked and I cannot root it or put CWM on it or anything as I keep getting errors... any advise?
I tried using the original bootloader unlock code I got but the phone rejects it saying something like 'FAILED remote does not have permission' or something along those lines in the CMD while using the fastboot code.
Click to expand...
Click to collapse
It says
FAILED remote: command not allowed
i don't know what to do...
I've got my phone rooted now following a guide but it hasn't helped

Make sure your mobo has not changed, and ask Sony for a new unlock code
Sent from my C6603 using xda app-developers app

If in service menu, and in bootloader unlock = NO, then it mean your motherboard has been changed, or the person that do the repair just change another phone for you which is unable to unlock..bootloader unlock = NO status mean no matter how you do it, the phone cannot longer be unlock as the phone hardware has been lock for specific carrier(usually)...

I tried anyway putting my IMEI into the sony website and got a new unlock code but that will still not unlock the bootloader, and my issue never got fixed as I was told that the motherboard would need to be replaced and I couldn't afford it, and I'm concerned as to why my IMEI has changed and I can no longer unlock my bootloader and I've tried downloading a new stock rom and flashing it and my phone is unlocked to all networks still as that was the way I got it and it is still this way.

L4WL13T said:
I tried anyway putting my IMEI into the sony website and got a new unlock code but that will still not unlock the bootloader, and my issue never got fixed as I was told that the motherboard would need to be replaced and I couldn't afford it, and I'm concerned as to why my IMEI has changed and I can no longer unlock my bootloader and I've tried downloading a new stock rom and flashing it and my phone is unlocked to all networks still as that was the way I got it and it is still this way.
Click to expand...
Click to collapse
Just continuing into that thread, is that possible to mod the carrier? I used to send my SXZ to the sav, get it back, unlocked the BL tried a rom and (was-i think- tired) I relocked it -_-, and from now on can't unlock the BL anymore,is there a solution or I just need to reflash the TA, put everything to stock and send it back to sav?

Can someone help? :$

Oxydeme said:
Can someone help? :$
Click to expand...
Click to collapse
I had same problem. And it even said it was unlocked... I reentered my imei and copied the code.. After many tries it worked... I used both flashtool and fastboot
Sent from my C6603 using xda app-developers app

HellRoot said:
I had same problem. And it even said it was unlocked... I reentered my imei and copied the code.. After many tries it worked... I used both flashtool and fastboot
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
On FT, it said Bootloader: NOT ROOTABLE so I think everything come back to stock before I send my phone to the Sav... So just gonna wait and see

Related

[Q] simunlock

Is there any way to find out what method was used to simunlock an x8 (without asking the guy who atualy did the deed, ofc)?
Sorry if this was allready asked, but couldnt find anything on this...
I dont think there is a way......may i know why do u want to know.....?
Sent from my E15a using xda premium
binhari said:
may i know why do u want to know.....?
Click to expand...
Click to collapse
Well, if its unlocked via imei, Im safe to unlock the bootloader... at least thats as far as I could gather by all the info scattered around.
To help narrow down the possible unlock method used, I can add that whenever the phone is rebooted, and there is a sim from a different Service Provider than the "original" one, it asks for a network unlock code. By tapping "skip" the phone then boots up and works just fine with any other Service Provider's sim.
This leads me to believe the phone was unlocked by other means than IMEI. And hence, all hopes of unlocking the bootloader are obliterated.
SnooSnoo said:
Well, if its unlocked via imei, Im safe to unlock the bootloader... at least thats as far as I could gather by all the info scattered around.
To help narrow down the possible unlock method used, I can add that whenever the phone is rebooted, and there is a sim from a different Service Provider than the "original" one, it asks for a network unlock code. By tapping "skip" the phone then boots up and works just fine with any other Service Provider's sim.
This leads me to believe the phone was unlocked by other means than IMEI. And hence, all hopes of unlocking the bootloader are obliterated.
Click to expand...
Click to collapse
Ok....:-S
Sent from my E15a using xda premium
Well, I still don't know what method was used to apply the simunlock, but, I was able to find out that my bootloader is unlocked.
So, that's cool :cyclops:
SnooSnoo said:
Well, I still don't know what method was used to apply the simunlock, but, I was able to find out that my bootloader is unlocked.
So, that's cool :cyclops:
Click to expand...
Click to collapse
Nice! Have fun!

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] HTC One Rooting and Unlocking Carrier

Hi All,
Hi have the HTC One Locked to Rogers, I had previously unlocked the phone as Im with Koodo. I purchased an unlock code and everything worked just find I was using the phone on the Koodo network for several months, then one day it lock up at the quietly brilliant screen after several attempts I was able to reboot the phone and same thing happened, again after a reboot it finally wouldn't power up. Needless to say I had to send it in under warrantied repair. I got the phone back and the main-board had to be replaced. I attempted to unlock the phone again via code just as I did before using IMEI, each individual states that a code could not be generated. I have rooted devices before but I'm no seabiscuit if you know what I mean and am not entirely sure to what extent I need to go to root and unlock the phone. Before anyone says anything about the rooting/unlocking i know this wont immediately solve my problem but if I have this access can I not find the unlock code in the phone once rooted in addition to other alternatives?. I appreciate any help you guys and gals have to offer.
Thank you
spannertanner said:
Hi All,
Hi have the HTC One Locked to Rogers, I had previously unlocked the phone as Im with Koodo. I purchased an unlock code and everything worked just find I was using the phone on the Koodo network for several months, then one day it lock up at the quietly brilliant screen after several attempts I was able to reboot the phone and same thing happened, again after a reboot it finally wouldn't power up. Needless to say I had to send it in under warrantied repair. I got the phone back and the main-board had to be replaced. I attempted to unlock the phone again via code just as I did before using IMEI, each individual states that a code could not be generated. I have rooted devices before but I'm no seabiscuit if you know what I mean and am not entirely sure to what extent I need to go to root and unlock the phone. Before anyone says anything about the rooting/unlocking i know this wont immediately solve my problem but if I have this access can I not find the unlock code in the phone once rooted in addition to other alternatives?. I appreciate any help you guys and gals have to offer.
Thank you
Click to expand...
Click to collapse
Anyone??? I'm sure I can root this thing but don't know where to go from there.
You will need a new unlock code generated to sim unlock the phone. Has nothing to do with rooting the device. Unless you mean bootloader unlock??
sent from my mobile device
SaHiLzZ said:
You will need a new unlock code generated to sim unlock the phone. Has nothing to do with rooting the device. Unless you mean bootloader unlock??
sent from my mobile device
Click to expand...
Click to collapse
I mentioned I had done this! Unlock code cannot be generated for this IMEI after repair. I am fully aware that rooting will not resolve this. However I will need to root in order to attempt an unlock of carrier via whatever methods are available once rooted such as using hex editor custom roms or whatever other methods are available. Again phone was unlocked via code previously after repair the main-board was replaced and an unlock code cant be generated apparently for the new IMEI.
Are you saying that you can't buy a SIM unlock code?
BenPope said:
Are you saying that you can't buy a SIM unlock code?
Click to expand...
Click to collapse
I bought an unlock code twice, both times I was told that my IMEI could not generate an unlock code. The codes were bought from a reputable source. I was refunded both times. This phone was sent for repair they replaced the main-board. Prior to this repair phone was unlocked via sim
There is no way to unlock via rooting currently.
Perhaps wait a few months and the code may come in to system
sent from my mobile device

[Q] Kit Kat Update with Locked Bootloader!

Good Day!, i purchase a z1 on Claro El salvador, phone is still runing 4.2.2 and theres no signs on an update and of course the bootloader is locked, can i update to kit kiat just by flashing the firmware using flash tool, or im just **** up? :s
sFranKv said:
Good Day!, i purchase a z1 on Claro El salvador, phone is still runing 4.2.2 and theres no signs on an update and of course the bootloader is locked, can i update to kit kiat just by flashing the firmware using flash tool, or im just **** up? :s
Click to expand...
Click to collapse
Download first the flashtool then download ftf filein the general section..be sure to download the correct model number..you can update to 4.4 by this.. What country are you from?
23852392 9
lelouch20 said:
Download first the flashtool then download ftf filein the general section..be sure to download the correct model number..you can update to 4.4 by this.. What country are you from?
Click to expand...
Click to collapse
El Salvador, model number is c6902, so its doesnt matter if i have a locked bootloader i can just flash any ftf file?
Yup..but make sure that you only flash c6902 ftf..or you will problems later...in locked bootloaders you cant flash custom kernels..thats it..as long as it is stock you can flash it..
lelouch20 said:
Yup..but make sure that you only flash c6902 ftf..or you will problems later...in locked bootloaders you cant flash custom kernels..thats it..as long as it is stock you can flash it..
Click to expand...
Click to collapse
Great!, tnx a lot for the help!.
sFranKv said:
Great!, tnx a lot for the help!.
Click to expand...
Click to collapse
Happy to help mate...
Branded phone. on stock 14.2.a.1.136
I have a question, Would my phone Imei number set itself to 000000000 if I flash the kitkat rom for my device? I tried flashing a stock rom on another build number which was unbranded and that resulted in no service, no connection to my sim manufacturer or able to look up the kernel, nothing worked. So please reply to my post. My phone is bound for 12 months and I would really like to flash a custom rom like Cyanogen on my device. Is there a way to do this or do I have to wait for a year?
After searching the xda forums I finally found a way to get my phone service up and running again.
My phone is Sony Xperia z1 build 6903 Stock 14.2.a.1.136. bound to a norwegian phone service named Telenor.
Any help or tips are much appreciated, I would really like to avoid encountering the same problem again it costed me alot of grief and will not continue to flash or do anything regarding my phone until someone would be kind enough to point me towards the how to's. Thank you for reading
The "how to's" are very well sign posted in the general and development threads, they are stickies
No, you will not lose IMEI
Thx for replying to my post. one up
gregbradley said:
The "how to's" are very well sign posted in the general and development threads, they are stickies
No, you will not lose IMEI
Click to expand...
Click to collapse
I flashed a rom on saturday, stock unbranded. resulted in my IMEI settings to dissappear. They came reapeared after i flashed 290 build back on my phone.
can I ask you to please point me to the right thread regarding this problem?
floezz said:
I flashed a rom on saturday, stock unbranded. resulted in my IMEI settings to dissappear. They came reapeared after i flashed 290 build back on my phone.
can I ask you to please point me to the right thread regarding this problem?
Click to expand...
Click to collapse
Flash a 534 FTF
instal dual recovery
flash SuperSU from chainfire
flash a prerooted 4,4 rom
21 times this week.....
floezz said:
I have a question, Would my phone Imei number set itself to 000000000 if I flash the kitkat rom for my device? I tried flashing a stock rom on another build number which was unbranded and that resulted in no service, no connection to my sim manufacturer or able to look up the kernel, nothing worked. So please reply to my post. My phone is bound for 12 months and I would really like to flash a custom rom like Cyanogen on my device. Is there a way to do this or do I have to wait for a year?
After searching the xda forums I finally found a way to get my phone service up and running again.
My phone is Sony Xperia z1 build 6903 Stock 14.2.a.1.136. bound to a norwegian phone service named Telenor.
Any help or tips are much appreciated, I would really like to avoid encountering the same problem again it costed me alot of grief and will not continue to flash or do anything regarding my phone until someone would be kind enough to point me towards the how to's. Thank you for reading
Click to expand...
Click to collapse
you cant use cyanogen rom bcoz it needs a custom kernel, and for you to be able to flash custom kernel you must have an unlocked bootloader..
im not an expert here but i think you cant unlock your bootloader if it is simlocked to your operator
you can only use modified stock rom as mention here by "gregbradley"
so i think you'll have to wait for 12 months for you to flash cyanogen based rom
Sim lock had nothing to do with boot loader unlock. Some Sim locked devices can be unlocked, some Sim free devices can not be unlocked
Sent from my C6903 using XDA Premium 4 mobile app
Well i already have the sim unlock code. so i Will still use the same sim card, but how do warp into the sim unlock mode? I tried setting in another sim card but the phone just asked me to insert the pin for that as well. Then again I would love to unlock my phone and use the same sim card, only difference the phone will be totally mine. So i can flash whatever rom and kernel that suits me. I have been using cyanogen since day one and would love continue to do so.
floezz said:
Well i already have the sim unlock code. so i Will still use the same sim card, but how do warp into the sim unlock mode? I tried setting in another sim card but the phone just asked me to insert the pin for that as well. Then again I would love to unlock my phone and use the same sim card, only difference the phone will be totally mine. So i can flash whatever rom and kernel that suits me. I have been using cyanogen since day one and would love continue to do so.
Click to expand...
Click to collapse
Your SIM unlock code will not unlock the bootloader, so you will still be unable to flash custom kernels.
Please read what I have said, SIM unlock has nothing to do with Bootloader unlock.
It is true most branded phones have bootloaders which cannot be unlocked and most SIM free phones canbe unlocked. But that is not an exclusive rule.
If you cannot unlock it now, entering a SIM unlock code will NOT unlock your bootloader.
To enter your SIM unlock code, contact your provider who would have given it to you.
delete
My settings
Deleted
Sent from my C6903 using XDA Premium 4 mobile app
You may want to not show your IMEI number to the world.
You can now goto the Sony website and unlock your bootloader using the official way. You can do this whilst you are still SIM locked, proving my point that SIM lock has nothing to do with bootloader unlock
What possible harm can be done with my imei number? Well sim lock certainly voids the service connection flashing builds earlier than 290.
Sent from my C6903 using XDA Premium 4 mobile app
floezz said:
What possible harm can be done with my imei number?
Click to expand...
Click to collapse
If you don't know, then don't worry about it....but now anyone in the world can block your phone
Well sim lock certainly voids the service connection flashing builds earlier than 290.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
That's not the SIM lock that does that. It does it on my phone and its SIM free.
Ok
---------- Post added at 12:38 PM ---------- Previous post was at 12:28 PM ----------
gregbradley said:
If you don't know, then don't worry about it....but now anyone in the world can block your phone That's not the SIM lock that does that. It does it on my phone and its SIM free.
Click to expand...
Click to collapse
I deleted the post, now final question deleting the sim lock literally will then not unlock my bootloader, that I am able to do as of now. But Completely deleting the sim lock will then leave my phone at my disposal, right? Since I have the sim unlock code, but I need to know how to remove the sim lock from my phone, cause using another sim card, which is not from the same company does not jump start the unlock mode.
Tell me if I got everything right. when I insert the sim unlock the sim lock will be completely gone from my phone right? regardless of what kernel or rom I use? and it can never come back?
floezz said:
Ok
---------- Post added at 12:38 PM ---------- Previous post was at 12:28 PM ----------
I deleted the post, now final question deleting the sim lock literally will then not unlock my bootloader, that I am able to do as of now. But Completely deleting the sim lock will then leave my phone at my disposal, right? Since I have the sim unlock code, but I need to know how to remove the sim lock from my phone, cause using another sim card, which is not from the same company does not jump start the unlock mode.
Tell me if I got everything right. when I insert the sim unlock the sim lock will be completely gone from my phone right? regardless of what kernel or rom I use? and it can never come back?
Click to expand...
Click to collapse
Yes, just ask the provider of the sim unlock code how to enter it. It should be your network provider. SIM locks or restrictiosn are nothing to do with firmware, android versions or kernels.
Your bootloader can be unlocked now by visiting the official sony website.
Please do not confuse bootloader and sim lock. they are two different issues and you keep talking as if they are related.

[Q] Help: Sony Xperia Z1 says cannot unlock bootloader

How can I install a custom ROM without an unlocked bootloader?
My phone says its bootloader cannot be unlocked
Mine too , it's must to be a solution to unlock the bootloader...
No, there is no solution
If it says it cannot be unlocked then it cannot be unlocked
Look in the development section for stock based custom roms that can be installed with a locked bootloader
To my experience it needs to be sim unlocked first in order to be bootloader unlocked. In a Xperia Z it said it couldn't unlock bootloader, i purchased unlock code, got it unlocked and then reflashed stock image. After that the status on "bootloader unlock allowed" was changed to yes.
roobns said:
To my experience it needs to be sim unlocked first in order to be bootloader unlocked. In a Xperia Z it said it couldn't unlock bootloader, i purchased unlock code, got it unlocked and then reflashed stock image. After that the status on "bootloader unlock allowed" was changed to yes.
Click to expand...
Click to collapse
Please provide proof of that, because this has never happened before and would be fantastic news
Also, some sim locked phones can have bootloaders unlocked and some sim free phones have bootloaders that cannot be unlocked. SO your logic is wrong.
gregbradley said:
Please provide proof of that, because this has never happened before and would be fantastic news
Also, some sim locked phones can have bootloaders unlocked and some sim free phones have bootloaders that cannot be unlocked. SO your logic is wrong.
Click to expand...
Click to collapse
Can't provide proof as 1) the bootloader was already unlocked 2) I don't even have the phone anymore.
I don't know if you find my logic right or wrong it was what happened to MY experience with one phone.
I'm pretty sure devs can give you a technical explanation about why it can or can't happen.
roobns said:
Can't provide proof as 1) the bootloader was already unlocked 2) I don't even have the phone anymore.
I don't know if you find my logic right or wrong it was what happened to MY experience with one phone.
I'm pretty sure devs can give you a technical explanation about why it can or can't happen.
Click to expand...
Click to collapse
OK thanks.
I know what the devs will say. They will say it cant happen. This has been talked about ad infinitum across various xperia devices.
Also, if your boot was already unlocked then how did you know the status changed?
Thanks anyway.
gregbradley said:
OK thanks.
I know what the devs will say. They will say it cant happen. This has been talked about ad infinitum across various xperia devices.
Also, if your boot was already unlocked then how did you know the status changed?
Thanks anyway.
Click to expand...
Click to collapse
When i got the phone (telcel mexico) it said the bootloader was not allowed to be unlocked.
I purchased an unlock code. Entered the code, unlocked the phone.
I flashed an upgraded FW via FTF
typed *#*#SERVICE#*#* and boom bootloader unlock statys changed to yes
That's how i know the status changed. So basically that's my story. I thought it could work with every device.
@gregbradley maybe the sim unlock method really works to change unlock bootloader status YES..bcs it works for some sony device, and we need to test this on Z1.
http://forum.xda-developers.com/showthread.php?t=1896553
There is nothing in that thread that confirms this. Plus the test point method to unofficially unlock the bootloader was stopped by Sony nearly 2 years ago.
But please, delve into this again if you want. But trust me it is a dead end and does not work. If it was easy as sim unlocking and flashing a ftf do you not think that would have been done by now.
Some seriously good devs have been working on this ever since the test point method was closed.
Sent from my C6903 using XDA Premium 4 mobile app

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