Bootloader unlock code for future use - Xperia Z3 Q&A, Help & Troubleshooting

Just got the D6633 dual Sim for my wife. I use Nexus devices exclusively but since Sony offers bootloader unlocking I decided to get this phone instead of a Nexus for her.
My question is, should I go through the steps to actually get the bootloader unlock code for future use. I don't plan on unlocking the bootloader just yet but I worry that in the future the service might be discontinued and I'll never get a code from Sony.
It's still under warranty and I'd like to keep it that way so I guess the real question is, is getting the code what voids the warranty or actually preforming the unlock that does it? Is there a counter or some type of a flag in the device that is set permanently or can the bootloader be locked back again like any Nexus device?
Thanks for your help.

No, it's not like KNOX [SAMSUNG] or S-ON [HTC]
Keep the code if you want.
That is one of the reasons I prefer SONY devices, besides the specs and build quality. No stuff like tripping KNOX fuse or getting S-OFF to make an HTC a Google Play Edition for example.
Keep the code, just in case.

TheTeslaCoil said:
No, it's not like KNOX [SAMSUNG] or S-ON [HTC]
Keep the code if you want.
That is one of the reasons I prefer SONY devices, besides the specs and build quality. No stuff like tripping KNOX fuse or getting S-OFF to make an HTC a Google Play Edition for example.
Keep the code, just in case.
Click to expand...
Click to collapse
OK, but if there is no tripped flag, how do they know I didn't use the code? I guess you didn't understand my initial question. I can understands the code doesn't expire, but doesn't the act of getting the code voids warranty?

obsanity said:
OK, but if there is no tripped flag, how do they know I didn't use the code? I guess you didn't understand my initial question. I can understands the code doesn't expire, but doesn't the act of getting the code voids warranty?
Click to expand...
Click to collapse
You trigger something on their servers, it's all about the IMEI and Serial Number.
Even if you relock the bootloader, they will still know it was unlocked, I for example relocked the bootloader the official way, via SONY website, and got the code in my email.

Not quite. Warrenty is coded when you unlock the boot, nor when you ask for the code.
You can get the code and keep it forever.
Officially there is no way to re lock the bootloader anyway.
However, if you root first, backup the TA patition them unlock the boot, you can restore the TA partition to re lock and don't will not know.

gregbradley said:
Not quite. Warrenty is coded when you unlock the boot, nor when you ask for the code.
You can get the code and keep it forever.
Officially there is no way to re lock the bootloader anyway.
However, if you root first, backup the TA patition them unlock the boot, you can restore the TA partition to re lock and don't will not know.
Click to expand...
Click to collapse
True, it is a good idea to backup the TA partion, I myself didn't do it, but it is a good advice.

OK, so I'm gathering that there is a way to root and install recovery without unlocking the bootloader. If that's the case, why would anyone need to open the bootloader?
Also, I'm still not clear on my initial question. Do I loose warranty as soon as I get the unlock code from Sony or does the act of unlocking what voids it.

obsanity said:
OK, so I'm gathering that there is a way to root and install recovery without unlocking the bootloader. If that's the case, why would anyone need to open the bootloader?
Also, I'm still not clear on my initial question. Do I loose warranty as soon as I get the unlock code from Sony or does the act of unlocking what voids it.
Click to expand...
Click to collapse
Only when you unlock you lose warranty. But you can backup the TA partition, and relock later, if you want.
With an unlock bootloader you can root Lollipop easy, with a lock bootloader, there are a few steps, like downgrading, for example.
And many more stuff you can do, with an unlocked bootloader, flash custom ROM's...mods, tweaks, etc.

TheTeslaCoil said:
Only when you unlock you lose warranty. But you can backup the TA partition, and relock later, if you want.
With an unlock bootloader you can root Lollipop easy, with a lock bootloader, there are a few steps, like downgrading, for example.
And many more stuff you can do, with an unlocked bootloader, flash custom ROM's...mods, tweaks, etc.
Click to expand...
Click to collapse
So if you can lock it back and need to claim warranty they won't know you ever had it unlocked? Something seems not right.

obsanity said:
So if you can lock it back and need to claim warranty they won't know you ever had it unlocked? Something seems not right.
Click to expand...
Click to collapse
If you restore your TA partition, yeah, you can claim warranty.

Related

Will Gsm unlock remian intact after upgrade to ICS?

so I am using ATT Skyrocket outside USA. The previous owner somehow unlocked it and then sold it to me. The phone is currently running on Gingerbread and I am planning an upgrade to ICS (i know how to do this). What I want to know is that after upgrade will the sim lock be reverted or my phone will remain sim unlocked after update?
please consider that it will be difficult for me to buy an unlock code so please answer only if u have tried or some expert knowledge.
thank you
I had my phone unlocked by kachman from this forum by a usb hack as he clamined. It stays unlocked no matter what rom you flash or upgrade. Also from cellunlocker.net, they claim if you unlock your phone using their code, you phone will stay unlocked regardless of what system you flash. It's hard to say if your phone will remain unlocked given the little info you provided. I'd say just stick with gb until you could get it unlocked again if you need to.
Your phone SHOULD remain unlocked. An OS upgrade should not affect that, or else everyone who gets their phone unlocked would have to bring it in/get a new code every time they did an upgrade, which doesn't make much sense. I Mean I can't say this with 100% certainty but I'd be a considerable amount of money that this is the case.
unlocking is permanent ....
cxyjordan said:
I had my phone unlocked by kachman from this forum by a usb hack as he clamined. It stays unlocked no matter what rom you flash or upgrade. Also from cellunlocker.net, they claim if you unlock your phone using their code, you phone will stay unlocked regardless of what system you flash. It's hard to say if your phone will remain unlocked given the little info you provided. I'd say just stick with gb until you could get it unlocked again if you need to.
Click to expand...
Click to collapse
^^ this
cxyjordan said:
I had my phone unlocked by kachman from this forum by a usb hack as he clamined. It stays unlocked no matter what rom you flash or upgrade. Also from cellunlocker.net, they claim if you unlock your phone using their code, you phone will stay unlocked regardless of what system you flash. It's hard to say if your phone will remain unlocked given the little info you provided. I'd say just stick with gb until you could get it unlocked again if you need to.
Click to expand...
Click to collapse
will there were four parties involved in the middle before i got hold of the phone but when it came to me it was already unlocked and ready to take in any sim...now the point is that since its unlocked is it possible to find out how was it actually unlocked? and if it was done through an unlock code, is it possible to extract it from the phone itself? (some one has already payed for unlocking it so now there seems to be no point of keeping the unlock code in a secret location)
mahanddeem said:
unlocking is permanent ....
Click to expand...
Click to collapse
is there any proof of what you say?
machiyara said:
will there were four parties involved in the middle before i got hold of the phone but when it came to me it was already unlocked and ready to take in any sim...now the point is that since its unlocked is it possible to find out how was it actually unlocked? and if it was done through an unlock code, is it possible to extract it from the phone itself? (some one has already payed for unlocking it so now there seems to be no point of keeping the unlock code in a secret location)
Click to expand...
Click to collapse
machiyara said:
is there any proof of what you say?
Click to expand...
Click to collapse
is it possible to find out how was it actually unlocked? --No.
if it was done through an unlock code, is it possible to extract it from the phone itself? -- No.
is there any proof of what you say? -- The unlock code and unlock state are stored in an encrypted file system partition (mmcblk0p18) that is accessible only by the radio and completely separate from the kernel, radio, system, data, and cache partitions that are typically overwritten during a ROM install/upgrade. So, yes a SIM unlock is permanent.
cschmitt said:
is it possible to find out how was it actually unlocked? --No.
if it was done through an unlock code, is it possible to extract it from the phone itself? -- No.
is there any proof of what you say? -- The unlock code and unlock state are stored in an encrypted file system partition (mmcblk0p18) that is accessible only by the radio and completely separate from the kernel, radio, system, data, and cache partitions that are typically overwritten during a ROM install/upgrade. So, yes a SIM unlock is permanent.
Click to expand...
Click to collapse
I missed you man lmfao
feeling the skyrocket xperiance
I
cschmitt said:
is it possible to find out how was it actually unlocked? --No.
if it was done through an unlock code, is it possible to extract it from the phone itself? -- No.
is there any proof of what you say? -- The unlock code and unlock state are stored in an encrypted file system partition (mmcblk0p18) that is accessible only by the radio and completely separate from the kernel, radio, system, data, and cache partitions that are typically overwritten during a ROM install/upgrade. So, yes a SIM unlock is permanent.
Click to expand...
Click to collapse
Believing on what u say i will try the update soon
Its such a shock that out of hundreds of skyrocket users who unlock their phones, no one has tried an update and cant make a comment on it.
machiyara said:
I
Believing on what u say i will try the update soon
Its such a shock that out of hundreds of skyrocket users who unlock their phones, no one has tried an update and cant make a comment on it.
Click to expand...
Click to collapse
Once unlocked always unlocked.
Sent from my GT-P5113 using Tapatalk 2
cschmitt said:
is it possible to find out how was it actually unlocked? --No.
if it was done through an unlock code, is it possible to extract it from the phone itself? -- No.
is there any proof of what you say? -- The unlock code and unlock state are stored in an encrypted file system partition (mmcblk0p18) that is accessible only by the radio and completely separate from the kernel, radio, system, data, and cache partitions that are typically overwritten during a ROM install/upgrade. So, yes a SIM unlock is permanent.
Click to expand...
Click to collapse
yes you were right, phone is still unlocked after upgrading
thankyou
this thread may be closed now

[Q] Restore someone else's TA, to get bootloader unlock allowed: Yes

Hello guys,
I have read thru somethreads outside of our phone's forum, and found some people restoring TA's from phones that allow bootloader unlocking, and was thinking if it's safe to do the same with our XL.
I understand there are certain modifications that have to be done.
Thanks in Advanced!
P.S. Searched the forums of the XL, but I didn't find anything with this matter, sorry if it has bean brought up.
If you forgot to backup your TA like me see this thread
http://forum.xda-developers.com/showthread.php?t=2604484&goto=newpost
As stated above, yes it's possible.
But you don't get your DRM keys back, thus your warranty is still voided.
Re-expressing my question
Joery360 said:
As stated above, yes it's possible.
But you don't get your DRM keys back, thus your warranty is still voided.
Click to expand...
Click to collapse
I must have expressed myself wrong.
I have my TA backup, but i have not unlocked my bootloader, because my unlocking status is NOT ALLOWED, yet my question is, if I can use a TA backup from another phone that has a bootloader unlock allowed: YES, so I can transfer this status to my device, therefor allowing me to unlock my bootloader.
Regards.
rguilamo said:
I must have expressed myself wrong.
I have my TA backup, but i have not unlocked my bootloader, because my unlocking status is NOT ALLOWED, yet my question is, if I can use a TA backup from another phone that has a bootloader unlock allowed: YES, so I can transfer this status to my device, therefor allowing me to unlock my bootloader.
Regards.
Click to expand...
Click to collapse
As far as I know its not possible to unlock your bootloader if unlocking is not allowed.
But you might want to take a look here. It's CWM for locked bootloaders.
If you really want to unlock you should consider selling your phone and buying a Xperia L where's unlocking allowed (mostly sim lock free phones)
There might be a risk of hard bricking of your phone if you restore someone else's TA backup
Sent from my C2104 using Tapatalk
rguilamo said:
I must have expressed myself wrong.
I have my TA backup, but i have not unlocked my bootloader, because my unlocking status is NOT ALLOWED, yet my question is, if I can use a TA backup from another phone that has a bootloader unlock allowed: YES, so I can transfer this status to my device, therefor allowing me to unlock my bootloader.
Regards.
Click to expand...
Click to collapse
did u attempt? what was the result?
pls kindly let us know. if u conform....imtoo thinking for it.
Don't try messing with TA backup or you will end up bricking the device and i am talking about hardbrick. If you restore someone else TA backup your mobile won't boot up and you won't be able to flash FTF again.

[noob question] unlocking the bootloader

Hi all.
I've got my XZ since one week now, and I'm missing the possibilities of rooting my device.
My Z2 was LB, so I never could ever try to unlock my bootloader. therefore, I don't know anything about it.
I've read a lot of thread here and there, and some points are not that clear to me.
Will the procedure of unlocking the bootloader erase everything in the phone (like photos, contacts, etc...)?
Unlocking the bootloader will kill the DRM keys forever, if I understood well. but flashing Androplus Kernel will recover them, right?
Is it possible to relock the booltloader after? if yes, will the DRM keys be restored?
Last thing, to be sure of what I should do.
1-unlock the bootloader with IMEI via sony site.
2-install TWRP via adb command
3-flash Androplus kernel.
Am I right, or do I miss something?
Thanks for your help, and sorry for the noobish questions.
sensei_sai said:
Hi all.
I've got my XZ since one week now, and I'm missing the possibilities of rooting my device.
My Z2 was LB, so I never could ever try to unlock my bootloader. therefore, I don't know anything about it.
I've read a lot of thread here and there, and some points are not that clear to me.
Will the procedure of unlocking the bootloader erase everything in the phone (like photos, contacts, etc...)?
Unlocking the bootloader will kill the DRM keys forever, if I understood well. but flashing Androplus Kernel will recover them, right?
Is it possible to relock the booltloader after? if yes, will the DRM keys be restored?
Last thing, to be sure of what I should do.
1-unlock the bootloader with IMEI via sony site.
2-install TWRP via adb command
3-flash Androplus kernel.
Am I right, or do I miss something?
Thanks for your help, and sorry for the noobish questions.
Click to expand...
Click to collapse
Hey sensei_sai,
Im unsure if unlocking will erase your data but its always best to backup everything in the internal memory just in case something goes wrong.
Androplus will NOT recover your DRM keys but kernels with DRM fixes try to replicate the features that are permanently lost as a result of unlocking your boot-loader.
In the future it may be possible for you to re-lock the boot-loader but even then this wont restore DRM keys, the only way to restore DRM keys would be to back up your TA partition (This contains your DRM keys) before you unlock your boot-loader but to do this you need root access with your boot-loader still locked.
How to backup TA
Unfortunately at this time nobody has figured out a way to get root with a locked boot-loader although a newly found exploit (Dirty cow) may help us do this very soon so if you care about re-locking and keeping your DRM keys I advise waiting until a locked boot-loader root solution is around!
Sonic Dash said:
Hey sensei_sai,
Im unsure if unlocking will erase your data but its always best to backup everything in the internal memory just in case something goes wrong.
Androplus will NOT recover your DRM keys but kernels with DRM fixes try to replicate the features that are permanently lost as a result of unlocking your boot-loader.
In the future it may be possible for you to re-lock the boot-loader but even then this wont restore DRM keys, the only way to restore DRM keys would be to back up your TA partition (This contains your DRM keys) before you unlock your boot-loader but to do this you need root access with your boot-loader still locked.
How to backup TA
Unfortunately at this time nobody has figured out a way to get root with a locked boot-loader although a newly found exploit (Dirty cow) may help us do this very soon so if you care about re-locking and keeping your DRM keys I advise waiting until a locked boot-loader root solution is around!
Click to expand...
Click to collapse
Thanks for your reply.
Too bad for the TA partition.
So we have two possibilities. Take the risk of loose some features forever, but benefit of the root or wait till someone make some magic to use an exploit to obtain root without unlocking the bootloader.
Risk and go... Or wait and safe... Dilemma...
Sent from my Xperia XZ
I think that the era of DRM lock is over, we've been using DRM fixes for all the latest xperia phones, the dirty cow is a bad exploit and it's more dangerous than useful.
I was unsure about unlocking the bootloader but now that I did it, I rooted and I regret nothing, the only downside of unlocking is the warranty loss, but who cares as long as the phone doesn't magically explode.
Venom71 said:
I think that the era of DRM lock is over, we've been using DRM fixes for all the latest xperia phones, the dirty cow is a bad exploit and it's more dangerous than useful.
I was unsure about unlocking the bootloader but now that I did it, I rooted and I regret nothing, the only downside of unlocking is the warranty loss, but who cares as long as the phone doesn't magically explode.
Click to expand...
Click to collapse
Good point for you... I think i will take the risk.
Sent from my Xperia XZ
I'm about to....
sensei_sai said:
Good point for you... I think i will take the risk.
Sent from my Xperia XZ
Click to expand...
Click to collapse
caqo71 said:
I'm about to....
Click to expand...
Click to collapse
OK, so did the bootloader unlock erase your data? Did you use the sony way or Flashtool?
I wrote a complete guide just here : https://forum.xda-developers.com/xperia-xz/how-to/how-to-unlock-bl-kernel-twrp-root-t3541648
Please use the search
nathan30 said:
I wrote a complete guide just here : https://forum.xda-developers.com/xperia-xz/how-to/how-to-unlock-bl-kernel-twrp-root-t3541648
Please use the search
Click to expand...
Click to collapse
Thank you, I've seen that guide, seems like it's not possible to unlock bootloader without factory reset.
tempurastyle said:
Thank you, I've seen that guide, seems like it's not possible to unlock bootloader without factory reset.
Click to expand...
Click to collapse
Yes, it's not possible
tempurastyle said:
Thank you, I've seen that guide, seems like it's not possible to unlock bootloader without factory reset.
Click to expand...
Click to collapse
Yes, but it worth it!! Save all your datas and go for it!

Is root without unlock possible?

I just wondered as a new Honor user wether root without unlocking the bootloader was possible, or if anyone is looking into to it at all?
Perhaps dirtycow or other ways?
Thanks in advance
I think that this is not currently possible. But the return of the original factory state is not a problem, see this topic here & here.
why do you even want to root without unlocking??whn unlocking is the easeier one than rooting...:good:
scoobydu said:
I just wondered as a new Honor user wether root without unlocking the bootloader was possible, or if anyone is looking into to it at all?
Perhaps dirtycow or other ways?
Thanks in advance
Click to expand...
Click to collapse
u should unlock but don't warry almost 90% of country's unlocking will not void warranty for huawei policies
Warranty issues and letting HW know that I've unlocked the bootloader.
Coming from Sony's previously you would lose DRM info for the camera and screen and audio tech if you unlocked without saving a TA partition.
Asume thats not the same with HW and its only a matter of them refusing to support you if you unlock?
scoobydu said:
Warranty issues and letting HW know that I've unlocked the bootloader.
Coming from Sony's previously you would lose DRM info for the camera and screen and audio tech if you unlocked without saving a TA partition.
Asume thats not the same with HW and its only a matter of them refusing to support you if you unlock?
Click to expand...
Click to collapse
when u go th unlocking website . they noted every thing regarding unlocking bootloader . so don't it will be up to you after u read to proceed or not !.
Romiui said:
when u go th unlocking website . they noted every thing regarding unlocking bootloader . so don't it will be up to you after u read to proceed or not !.
Click to expand...
Click to collapse
Pretty sure he knows that. That is why we're interested in rooting the phone WITHOUT unlocking it...

How to set "locked" again the bootloader after unlock?

Hi guys, I've unlocked the bootloader, then I tried to lock it again, but now BL is set on "RELOCKED" and not on "LOCKED".
So, I think, in case I've to send my phone in warranty, I will have problems!
So, the question is: how can I set again in "LOCKED" the bootloader?
Thank you so much!
Did you not use the unlock code provided by Huawei? Otherwise, they already know you voided the warranty.
hanset said:
Hi guys, I've unlocked the bootloader, then I tried to lock it again, but now BL is set on "RELOCKED" and not on "LOCKED".
So, I think, in case I've to send my phone in warranty, I will have problems!
So, the question is: how can I set again in "LOCKED" the bootloader?
Thank you so much!
Click to expand...
Click to collapse
There is no way if you did it with the 16 digit code. It will be only relock and no lock. Had you used the other way of unlocking, you may have locked it again. Whats the requirements, only to regain warranty?
SethW said:
Did you not use the unlock code provided by Huawei? Otherwise, they already know you voided the warranty.
Click to expand...
Click to collapse
Yeah, I've requested the code, but it doesn't mean nothing: I Can request it but it doesn't mean that I have to use it! ^_^
Is there a way to set on "locked" the bootloader?
I knew about dc-unlocker, a payware program.. Does It works?
shashank1320 said:
There is no way if you did it with the 16 digit code. It will be only relock and no lock. Had you used the other way of unlocking, you may have locked it again. Whats the requirements, only to regain warranty?
Click to expand...
Click to collapse
Yeah, only regain warranty ^_^
hanset said:
Yeah, only regain warranty ^_^
Click to expand...
Click to collapse
Don't worry. Unless you run into something very critical you wont need it..even though if you go to service centre, not all cares for bootloader.
shashank1320 said:
Don't worry. Unless you run into something very critical you wont need it..even though if you go to service centre, not all cares for bootloader.
Click to expand...
Click to collapse
Ok! Thanks for the support
first relock the bootloader
and then flash the org firmware from Huawei site
same as new
just wipe your device & install stock fimware with sd card everything will fine, like brand new
Ok, perfect.. thx everybody!! Love you

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