[Q] Bootloaders - Xperia Tablet Z Q&A, Help & Troubleshooting

hi,
i'm considering to buy the xperia tablet z 32GB. but i've some concerns about the bootloaders.
how can i know if the tablet i'm about to buy has a unlockable bootloader or not? is there any visible way to know? i'm considering to buy it at a informatic store fnac. it's not an operators brand so what's the probability that their tablet have locked bootloader? from what i've read locked bootloaders usually come from branded devices, right? so, if the tablet they have in exhibit has an unlockable bootloader does that mean all the other tablet in that stora are the same?
thanks

I bought my Tablet Z at a department store and my bootloader is NOT unlockable. I am happy with the stock kernel, as long as I can root and install a working recovery.
Enviado desde mi SGP311 usando Tapatalk 2

davidht said:
I bought my Tablet Z at a department store and my bootloader is NOT unlockable. I am happy with the stock kernel, as long as I can root and install a working recovery.
Enviado desde mi SGP311 usando Tapatalk 2
Click to expand...
Click to collapse
I had no earthly clue that some were unlockable and some weren't...... What exactly is the difference between them?
Sent from my SCH-I605 using XDA Premium HD app

i think you need to unlock the bootloader to flash all the kernels and roms. also, things like dual boot need unlocked bootloaders to work.

Sacob said:
i think you need to unlock the bootloader to flash all the kernels and roms. also, things like dual boot need unlocked bootloaders to work.
Click to expand...
Click to collapse
I know what unlocking a bootloader does, why you have to unlock it, etc. I was under the impression that ALL the Xperia Tablet Zs were unlockable though and from the post I quoted above it sounds like only certain ones are. So which are unlockable and why are only some unlockable?
Sent from my SCH-I605 using XDA Premium HD app

from what i've read in this forum some users have unlockable bootloaders. i was trying to figure out if there was a way to know it before buy

Sacob said:
from what i've read in this forum some users have unlockable bootloaders. i was trying to figure out if there was a way to know it before buy
Click to expand...
Click to collapse
I wonder if the ones that aren't unlockable are the LTE models?
Sent from my SCH-I605 using XDA Premium HD app

Got mine from Darty (SGP311) and my BL is unlockable. Usually for mobile it's the carrier that locks the bl, so if it's wifi only tablet it should be unlockable no matter where you get it.
If there is an exposition device just access service menu to check if it's unlockable.
how to : How to open the service menu on a tablet

Related

Xperia S Root

I cant seem to unlock my bootloader as it says on the service menu not allowed, so was wondering if there is antother way without unlocking bootloader?
Not currently, I'm in the same boat.
sent from my xperia s
yep mine too on o2, i found this link on a old XDA thread about paying to unlock the bootloader (can't link as a new member but if you search for phoneunlockserver)
I'll use that as a last option if all else fails
I would be willing to pay for a working root solution on my locked bootloader XpS
My biggest fear is...xda devs have worked with Sony to get certain bootloaders unlocked. So it will be locked down pretty tight i'm guessing.
Hopefully they left open a root option without the need of unlocking the bootloader. If so i'm hoping the solution comes fairly soon.
The bloatware they have stuck on here is ridiculous,
Sent from my SGH T100 from XDA premium app
It's possible that you may well be able to root without unlocking the bootloader. There was something called Zerg Rush exploit on other phones, which is what I used on my Xperia Arc.
Kiefels said:
I would be willing to pay for a working root solution on my locked bootloader XpS
My biggest fear is...xda devs have worked with Sony to get certain bootloaders unlocked. So it will be locked down pretty tight i'm guessing.
Hopefully they left open a root option without the need of unlocking the bootloader. If so i'm hoping the solution comes fairly soon.
The bloatware they have stuck on here is ridiculous,
Sent from my SGH T100 from XDA premium app
Click to expand...
Click to collapse
Abandoned-Trolley said:
It's possible that you may well be able to root without unlocking the bootloader. There was something called Zerg Rush exploit on other phones, which is what I used on my Xperia Arc.
Click to expand...
Click to collapse
That exploit was fixed by SE in in .62 firmware for arc. It will not work for XS. (again, prove me if I'm wrong )
I am checking this thread often from now on. I just had an xda break for over a year (iphone) but i am planning to buy this phone next month. Of course the big charm is to root and theme the thing to your own hand.
PollPixx said:
I am checking this thread often from now on. I just had an xda break for over a year (iphone) but i am planning to buy this phone next month. Of course the big charm is to root and theme the thing to your own hand.
Click to expand...
Click to collapse
My Xperia S was rooted from day 1.
But I don't have a carrier-provided phone which is not unlockable.
---------- Post added at 11:39 PM ---------- Previous post was at 11:37 PM ----------
Kiefels said:
My biggest fear is...xda devs have worked with Sony to get certain bootloaders unlocked. So it will be locked down pretty tight i'm guessing.
Click to expand...
Click to collapse
No, you have the wrong understanding. Phones that are provided by, or customized by, a carrier are usually not "unlockable" due to the warranty claims. Only phones bought directly, or paid for in full (rather than on a "lease" from the carrier) are unlockable.
It's a matter of who carries the warranty and what they decided to do with it.
Ok, i will buy one without contract so i assume its not provider locked...
PollPixx said:
Ok, i will buy one without contract so i assume its not provider locked...
Click to expand...
Click to collapse
Correct, SIM-free ones so far have unlockable bootloader
There will be a solution to unlock O2 phones in the future though?
dbappa said:
There will be a solution to unlock O2 phones in the future though?
Click to expand...
Click to collapse
Im guessing so!
I hope so as well, I loved messing about with my Desire with the roms on this site, almost made the end of the 2 year contract bearable.
Still waiting for easy root process. :-( Don't wanna unlock bootloader. Guys, do something.
There is nothing we can do with locked bootloaders as of yet until there is method to use s1 tool which unlocks bootloader like it did for the 2011 devices
I really want my xs rooted but like I said not possible as of yet
Sent from my LT26i using xda premium
Apparently sim-unlock a sim-locked XS won't make any difference to the bootloader status.
Does anyone know if flashing it to another official rom (un-brand it) make any change?
Nop it wont
PollPixx said:
Ok, i will buy one without contract so i assume its not provider locked...
Click to expand...
Click to collapse
I bought mine with a contact from T-mobile and its sim-lock free and the bootloader can be unlocked.
power323f said:
I bought mine with a contact from T-mobile and its sim-lock free and the bootloader can be unlocked.
Click to expand...
Click to collapse
Well im on tmobile and from uk and ItS sim locked
Sent from my LT26i using xda premium
It all depends where are you taking it from. If you are taking it from retailer, such as T-Mobile, more than likely it will be simlocked, because T-Mobile does not want you i.e. to use that phone with another network SIM card, but if you buy it from shop, like Sony, Phones4U, Carphone Warehouse, etc... they are selling unlocked phones, so they could simply put any mobile carrier SIM card in. There are exceptions though.

Can't unlock my boot loader C6806

Hi!
I have a brand new Xperia Z Ultra and I was looking for unlocking my boot loader however, after checking the *#*#7378423#*#* "boot loader unlock allowed", I am surprise to see that I am not allowed to unlock my boot loader.
Are there any way I can bypass this ?
Nope
What makes the xperia z ultra unlockable for some and not for others.
I think you'll have to down grade to 4.2.2
Sent from my C6833 using xda app-developers app
jamesst20 said:
What makes the xperia z ultra unlockable for some and not for others.
Click to expand...
Click to collapse
Are you on Bell? They've locked the bootloader, so it's not possible to unlock it. Even Sony can't help you. It's the same thing Verizon does with most of its devices, and it's quite pathetic.
LordManhattan said:
Are you on Bell? They've locked the bootloader, so it's not possible to unlock it. Even Sony can't help you. It's the same thing Verizon does with most of its devices, and it's quite pathetic.
Click to expand...
Click to collapse
Yes sir.. With Bell. Do you mean that Telus, Rogers, etc.. doesn't lock their boot loader?
JackHanAnLG said:
I think you'll have to down grade to 4.2.2
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
Yeah I am aware of this but it doesn't let me install custom rom as non-stock kernel will not run.
The Xperia Z Ultra is exclusive to Bell in Canada. The only way to get an unlockable bootloader is to buy from Sony, Google, or import from somewhere they are sold unlocked.
REAVER117 said:
The Xperia Z Ultra is exclusive to Bell in Canada. The only way to get an unlockable bootloader is to buy from Sony, Google, or import from somewhere they are sold unlocked.
Click to expand...
Click to collapse
I see.. Thanks!
Envoyé de mon C6806 en utilisant Tapatalk
Contacted Bell and nobody knows what I am talking about. No way to unlock it than replacing it.. Who thinks there will be a workaround some day?
Envoyé de mon C6806 en utilisant Tapatalk
jamesst20 said:
Contacted Bell and nobody knows what I am talking about. No way to unlock it than replacing it.. Who thinks there will be a workaround some day?
Envoyé de mon C6806 en utilisant Tapatalk
Click to expand...
Click to collapse
I'm with Bell as well - and I didn't even bother making the call you did because I can't imagine more than 1 employee at the entire corporation would have any idea what a bootloader is - let alone how to unlock it.
It's just not very common technical knowledge - even with 'technical support'.
And I don't think it's possible for there to ever be a workaround - we will never be able to flash a non-stock based ROM. Period.
hassanmahmood said:
I'm with Bell as well - and I didn't even bother making the call you did because I can't imagine more than 1 employee at the entire corporation would have any idea what a bootloader is - let alone how to unlock it.
It's just not very common technical knowledge - even with 'technical support'.
And I don't think it's possible for there to ever be a workaround - we will never be able to flash a non-stock based ROM. Period.
Click to expand...
Click to collapse
i have to agree with this. I work for bell and let me tell you everyone askes be to do this stuff for them and when i call our help desk.....lets just say that my son knows more then the people there. Best thing to do is hope there might be a work around. as for right now. you are stuck with the unlockable bl.
If you do the sim unlock for a bell device, do you get the bootloader unlock as part of it? Or are you just unlocking the sim side? I wasn't sure if the option would be available with one... you get the other....
s1eelra1 said:
If you do the sim unlock for a bell device, do you get the bootloader unlock as part of it? Or are you just unlocking the sim side? I wasn't sure if the option would be available with one... you get the other....
Click to expand...
Click to collapse
That is only a carrier-unlock.
Very sad. I bought a Z ultra on Craigslist and I unfortunately noticed that I cannot unlock the bootloader. It says "bootloader unlock allowed no" after I dial *#*#7378423#*#*.
Does anyone know is it possible to unlock bootloader now?
Thanks very much

Fear of a non unlockable bootloader :( how to avoid It?

Hi guys,
I'm thinking of buying this tablet (or maybe Z2, as soon as It rolls out) but I'm afraid of getting a device with a not unlockable bootloader. I'd have a no-brand one. Is there the possibility that the bootloader is locked on my new tablet without the possibility of unlocking It? I read somewhere that carriers can request sony to unlock the bootloaders of the devices they sell (but, as I said, I'd have a no brand one).
In short, what does getting a not unlockable bootloader depend on?
Thanks a lot
Antonio
Inviato dal mio GT-N5100 usando XDA Premium HD app
Tablet Z2!!
Alfablos said:
Hi guys,
I'm thinking of buying this tablet (or maybe Z2, as soon as It rolls out) but I'm afraid of getting a device with a not unlockable bootloader. I'd have a no-brand one. Is there the possibility that the bootloader is locked on my new tablet without the possibility of unlocking It? I read somewhere that carriers can request sony to unlock the bootloaders of the devices they sell (but, as I said, I'd have a no brand one).
In short, what does getting a not unlockable bootloader depend on?
Thanks a lot
Antonio
I think sony themselves should unlock the bootloaders, kinda like htc does. My old Xperia tablet s had unlocked bootloader when they bought it back from me, so they should get the point. but OMG can't wait to buy tablet z2! You think it will be available for purchase after mwc? :angel:
Too bad the bezel is soooo obnoxiously ugly. lol
Click to expand...
Click to collapse
jrmusante said:
Alfablos said:
Hi guys,
I'm thinking of buying this tablet (or maybe Z2, as soon as It rolls out) but I'm afraid of getting a device with a not unlockable bootloader. I'd have a no-brand one. Is there the possibility that the bootloader is locked on my new tablet without the possibility of unlocking It? I read somewhere that carriers can request sony to unlock the bootloaders of the devices they sell (but, as I said, I'd have a no brand one).
In short, what does getting a not unlockable bootloader depend on?
Thanks a lot
Antonio
I think sony themselves should unlock the bootloaders, kinda like htc does. My old Xperia tablet s had unlocked bootloader when they bought it back from me, so they should get the point. but OMG can't wait to buy tablet z2! You think it will be available for purchase after mwc? :angel:
Too bad the bezel is soooo obnoxiously ugly. lol
Click to expand...
Click to collapse
Bou I've read in this forum of threads like "FOR UNLOCKED BOOTLOADERS ONLY" and about a method to see If your bootloader is unlockable (something like #7#blablabla*. This is a real pain in the ass. Is there a way to know that Sony's criteria are to make bootloader non unlockable?
I haven't looked at Z2 yet, but I will soon. Anyway, no, I don't think It'll be available immediately after the MWC I expect It for May/June
Click to expand...
Click to collapse
Generally all Xperia devices bought unlocked (not from any carrier) are able to be bootloader unlocked. Some carriers block that, but not all of them.
To check, follow the tutorial: http://www.xperiablog.net/2013/06/20/xperia-tablet-z-how-to-access-the-service-menu/
At the menu, go to Service Info, then Configuration and check that.
Sent from my SGP311 using Tapatalk
Felimenta97 said:
Generally all Xperia devices bought unlocked (not from any carrier) are able to be bootloader unlocked. Some carriers block that, but not all of them.
To check, follow the tutorial: http://www.xperiablog.net/2013/06/20/xperia-tablet-z-how-to-access-the-service-menu/
At the menu, go to Service Info, then Configuration and check that.
Sent from my SGP311 using Tapatalk
Click to expand...
Click to collapse
Thank you. So if I'm buying no brand my bootloader should be unlockable as far as I understand. Is that right?
Sent from my Nexus 5 using XDA Premium 4 mobile app
Alfablos said:
Thank you. So if I'm buying no brand my bootloader should be unlockable as far as I understand. Is that right?
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yes.
Sent from my SGP311 using Tapatalk
Felimenta97 said:
Yes.
Sent from my SGP311 using Tapatalk
Click to expand...
Click to collapse
Thank you. Samsung isn't doing the same apparently, so I had to give away my Note 3. Anyway as far as I understand there will be no 32Gb+LTE version of Xperia Tablet Z2, right? Sorry if I speak about that here but I don't think there's an apposite section on this forum.
Alfablos said:
Thank you. Samsung isn't doing the same apparently, so I had to give away my Note 3. Anyway as far as I understand there will be no 32Gb+LTE version of Xperia Tablet Z2, right? Sorry if I speak about that here but I don't think there's an apposite section on this forum.
Click to expand...
Click to collapse
There actually is a thread for that here: http://forum.xda-developers.com/showthread.php?t=2651363
But, I can answer you: I am pretty sure there is going to be an LTE, but I can't say for certain if there will be a 32 Gb + LTE version, though...
Felimenta97 said:
There actually is a thread for that here: http://forum.xda-developers.com/showthread.php?t=2651363
But, I can answer you: I am pretty sure there is going to be an LTE, but I can't say for certain if there will be a 32 Gb + LTE version, though...
Click to expand...
Click to collapse
Thanks!
Guys, I've found this.
This is A-W-E-S-O-M-E!!!
http://unlockbootloader.sonymobile.com/supported-devices
I'm impressed!
Do you think this will be implemented on Tablet Z2 too?
Alfablos said:
Guys, I've found this.
This is A-W-E-S-O-M-E!!!
http://unlockbootloader.sonymobile.com/supported-devices
I'm impressed!
Do you think this will be implemented on Tablet Z2 too?
Click to expand...
Click to collapse
That has been there for years. And, yes, Tablet Z2 will likely have it too.
Sent from my LT26i using Tapatalk
Felimenta97 said:
That has been there for years. And, yes, Tablet Z2 will likely have it too.
Sent from my LT26i using Tapatalk
Click to expand...
Click to collapse
Now all I need to know is whether I can connect my Apple Keyboard and mouse to the tablet and I'm done. If I can, I'm off to Japan to get a Z2 tablet directly from Kazuro Hirai himself
Sent from my Nexus 5 using XDA Premium 4 mobile app

Locked bootloader bypass = $

I'm willing to throw up $100 for the first Dev to unlock a locked bootloader on the Z2. I miss my AOSP ! Anyone else chipping in?
Sent from my D6503 using XDA Premium 4 mobile app
A non unlockable bootloader is not easily unlocked, it will take upto 2 years to unlock a single device so its pointless, and even then this unlock will only work on that device so no, no unlock
As for aosp roms, all we need is a third kernel in the system partition, its quite hard but done before and works fine when done
Sent from my D6503 using XDA Premium 4 mobile app
I'm saying that I'd be willing to pay whichever method gets me AOSP.
Sent from my D6503 using XDA Premium 4 mobile app
Ill be testing a method later this year so if anyone else wants to try feel free
I honestly dont care about money
Sent from my D6503 using XDA Premium 4 mobile app
Mortify1 said:
I'm willing to throw up $100 for the first Dev to unlock a locked bootloader on the Z2. I miss my AOSP ! Anyone else chipping in?
Click to expand...
Click to collapse
Can't you flash an AOSP based ROM if you use EasyRoot, install XZDualRecovery and then use TWRP/PhilZ to flash?
A bit off topic but.
Did i miss something in the android world - i have never had a sony device before (always used htc even before htcdev) but what changed once upon a time usually exploits came around in a matter of months not years. So did sony invent the ultimate protection system or something like that ?
mishooo said:
A bit off topic but.
Did i miss something in the android world - i have never had a sony device before (always used htc even before htcdev) but what changed once upon a time usually exploits came around in a matter of months not years. So did sony invent the ultimate protection system or something like that ?
Click to expand...
Click to collapse
Don't understand you?
"We have" found exploits for all fw for now...
All latest firmwares for all Xperia devices (Z,Z1(s and c) Z2 and all older devices could be rooted..
Z2 is 2-3 month old device and we have root method for all firmwares...
That doesn't have anything with custom ROMs or AOSP ROMs.
Locked bootloader is something totally diferent.
Locked bootloader is something Sony won't do , that's something requested by operators (mostly t-mobile) - Google it and you'll get it..
funky0308 said:
Don't understand you?
"We have" found exploits for all fw for now...
All latest firmwares for all Xperia devices (Z,Z1(s and c) Z2 and all older devices could be rooted..
Z2 is 2-3 month old device and we have root method for all firmwares...
That doesn't have anything with custom ROMs or AOSP ROMs.
Locked bootloader is something totally diferent.
Locked bootloader is something Sony won't do , that's something requested by operators (mostly t-mobile) - Google it and you'll get it..
Click to expand...
Click to collapse
Yes i meant unlocking the bootloader (i know what locked bootloader is dont worry). As i said I used to have HTC`s for the past like 10 years and initially (true during the windows era that was not a problem) then alparev did the job etc anyway was more of me just thinking about it no worries
Bump. Cash ready
Mortify1 said:
Bump. Cash ready
Click to expand...
Click to collapse
you just reminded me
there is a dev who is working on aosp for locked bootloader, it should be up and working in the next 3 months unless something stops him
also have you tried looking into selling your Z2 and buying a generic unlockable Z2, Z2s arent as expencive now
Bump! Cash in my PayPal and willing to test.
i
Mortify1 said:
Bump! Cash in my PayPal and willing to test.
Click to expand...
Click to collapse
if ur device Bootloader unlock allowed = NO
so u can change ur xz2 with mine xz2
Just wondering if that AOSP for locked bootloaders got anywhere, I just updated to 23.0.1.A.0.167 and lost root
Aosp requires a custom kernel which requires an unlocked bootloader so no :-/
Sent from my Xperia Z2 using Tapatalk

I have a question about verizon's phones.

I'm on the verizon network, and I have the N6P. My question is, what phones on the verizon network are truely rootable? Unlocked bootloader and all. I had the note 3, which is rootable, but you could not unlock the bl,and you could only run aosp roms. That didn't work for me. I'm just wondering, so when I change phones I know which phone to get. Thanks
I believe if I'm not mistaken, that most Verizon androids are locked on the bootloader. That doesn't mean that root isn't impossible, it just means that exploits would need to be used to create a root.
Sent from SM-G900Pkltespr
xHolomovementx said:
I believe if I'm not mistaken, that most Verizon androids are locked on the bootloader. That doesn't mean that root isn't impossible, it just means that exploits would need to be used to create a root.
Sent from SM-G900Pkltespr
Click to expand...
Click to collapse
Noobie here: haven't been on android since 2012. Can't you ask the carrier to unlock the phone or is that a different thing?
Sent from my iPhone using Tapatalk
Bboy486 said:
Noobie here: haven't been on android since 2012. Can't you ask the carrier to unlock the phone or is that a different thing?
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
It really depends on which phone you have, I'm almost 99% sure that the bootloaders for the Nexus 6p's can be unlocked without the carriers permission. Google is really great about that, but on the other hand the Verizon S5 has a locked bootloader.
Sent from SM-G900Pkltespr
xHolomovementx said:
It really depends on which phone you have, I'm almost 99% sure that the bootloaders for the Nexus 6p's can be unlocked without the carriers permission. Google is really great about that, but on the other hand the Verizon S5 has a locked bootloader.
Sent from SM-G900Pkltespr
Click to expand...
Click to collapse
I'm on Sprint
Sent from my iPhone using Tapatalk

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