Bootloader - Xperia Z2 Q&A, Help & Troubleshooting

So mine, as with many in the UK is locked down.
My question is, if I get Vodafone to unlock the phone will this allow the bootloader to be unlocked also, or is it simply the allowing for use on different providers that is unlocked?
Sent from my D6503 using xda app-developers app

Nope, you're screwed if you want to unlock your BL. Happened with me in 2012, I got an Xperia T with Three UK and I've had to play with stock based ROM's since then. It gets EXTREMELY frustrating...
Sent from my GT-I9100 using Tapatalk

Wow, your kidding right, this is a major problem to me as playing with root takes up a lot of my life (I guess it's an autistic trait).
Can't Sony sort for me if I contact them?
What's the point in locking some in that case?
Sent from my D6503 using xda app-developers app

It's not Sony's decision unfortunately, but rather part of the terms that Networks put forward to sell Sony's phones.
Many have tried previously to get Sony to help but have been flatly refused as Sony are bound by their contracts to the network. I tried contacting my network (Three Uk) for help with my Xperia S but again, they point blank refused to do anything.
If it's going to be a huge issue then as stated the only option is to return the phone to your network and purchase an unlocked one either from Sony directly, or a company that definitely sells ones witb unlockable bootloaders.
Edit: Root and Recovery can still be achieved (once someone discovers a method for the Z2), so it's only custom kernels and custom ROMs that won't be possible on Locked Bootloaders.
Sent from my LT26i using Tapatalk

Question - if I root via an exploit, can I not then force the bootloader to allow an unlock?
Sent from my D6503 using xda app-developers app

Nobody managed that on previous Sony devices so I wouldn't hold out much hope?
Sent from my LT26i using Tapatalk

Why So Serious? said:
Nobody managed that on previous Sony devices so I wouldn't hold out much hope?
Sent from my LT26i using Tapatalk
Click to expand...
Click to collapse
But if I root with an exploit it will still be a full root so I can install xposed module and DSP?
Sent from my D6503 using xda app-developers app

Why So Serious? said:
Nobody managed that on previous Sony devices so I wouldn't hold out much hope?
Sent from my LT26i using Tapatalk
Click to expand...
Click to collapse
Yep you can change anything the system partition. You can install a recovery with the relevant exploit however You are stuck with official signed.Sony kernels..that generally means no custom roms other than those based on stock Sony roms.
Sent from my Xperia S using xda app-developers app

Related

Why are some bootloaders unlockable?

Hi,
I'm thinking of buying a Xperia U but I know I will eventually want to put CyanogenMod on it. It seems some phones have an non-unlockable bootloader, but why?
Are the phones that are bought through a carrier the non-unlockable ones, but the ones bought full price from a store unlockable?
Just when u are picking up a handset
Type *#*#7378423#*#*
Go to service info and configuration
If bootloader unlock allowed is yes
Then purchase it
Or else say u dun like that color
Some carriers or brands lock their changed firmwares. That is why !
StratOS_HTC said:
Some carriers or brands lock their changed firmwares. That is why !
Click to expand...
Click to collapse
My carrier dont use their own custom firmware, jus stock Sony but I still have bl unlock = no
Sent from my ST25i using xda app-developers app
corsav6 said:
My carrier dont use their own custom firmware, jus stock Sony but I still have bl unlock = no
Sent from my ST25i using xda app-developers app
Click to expand...
Click to collapse
It is something the carriers have asked Sony to do. Sony have done it themselves but requested by the networks. An agreement they have. Sony can unlock it at a service centre but won't because of the agreement.
Annoying really.
Advantages of paying more for a phone upfront instead of getting a contract phone.
Cheers,
Lunar.
Sent from my LT26i using xda app-developers app

Verizon contract

Just curious.... has anyone ever looked at the contract lately. I was looking to see where it said anything about rooting devices but no dice. Can someone clear that up maybe with a link? Thank you
I don't believe the contract says anything about it, but the warranty on the other hand is a different story.
Sent from my Rezound using Tapatalk 2
I always wondered, if you told Verizon you are or were rooted, do they write it down? So even if you unroot they will know your warranty is void?
im_high_tech said:
I always wondered, if you told Verizon you are or were rooted, do they write it down? So even if you unroot they will know your warranty is void?
Click to expand...
Click to collapse
Well with the Rezound, you need to use an unlock key from HTC's site, so they know you rooted your phone..
mjones73 said:
Well with the Rezound, you need to use an unlock key from HTC's site, so they know you rooted your phone..
Click to expand...
Click to collapse
I don't think they coordinate with vzw on that ... I would be very surprised I'd they did. But as for warranty... how would it void that?
Sent from my ADR6425LVW using xda app-developers app
First of all, they probably won't check the bootloader to see if you've unlocked it. And if you really wanna be precautious, you can revert back to locked, although it is an extensive process
Sent from my ADR6425LVW using xda app-developers app
Honestly i really understand why unlocking the bootloader voids your warranty since you cant really break your phone being S-ON, now if you were S-OFF that is a whole other story. And honestly someone who is unlocked and/or rooted is likely to have enough experience to be able to fix almost any software related issue(not always the case though). Being unlocked and/or rooted shouldnt hold you back from sending it in for warranty. Although i have heard some people say it goes through warranty just fine being rooted and unlocked.
Squirrel1620 said:
First of all, they probably won't check the bootloader to see if you've unlocked it. And if you really wanna be precautious, you can revert back to locked, although it is an extensive process
Sent from my ADR6425LVW using xda app-developers app
Click to expand...
Click to collapse
I know what I can do... but it has nothing to do with my device ... I just am curious if vzw has anything legit in place against modifying software on the phones. I've seen where it says you can not modify the hardware but saw nothing of software
Sent from my ADR6425LVW using xda app-developers app
cslingerland said:
I know what I can do... but it has nothing to do with my device ... I just am curious if vzw has anything legit in place against modifying software on the phones. I've seen where it says you can not modify the hardware but saw nothing of software
Sent from my ADR6425LVW using xda app-developers app
Click to expand...
Click to collapse
I don't know legally what they can do, but I've had a few conversations with the local reps in my area. They don't care if you phone is rooted as most of them have rooted phones. I was in with my dad the one day back when he was getting the Tbolt, and the rep noticed that my bolt was rooted. He said honestly, he would never recommend the bolt to someone who wasn't going to root it anyway. I've been told that they are a lot more lax about rooting now than they were in the past.
At the Verizon store near me, the only person that cares is the manager. The rest of the employees don't care
Sent from my Rezound using xda app-developers app
As far as I know Verizon doesn't care at all if you root, (I've unlocked the bootloader, relocked and sent in many Rezounds and they never cared) and HTC just tells you they have the right to not honor your warranty when you unlock your bootloader, at their discretion, but they almost always honor it.
Another thing, unless you have the extended warranty with Verizon (I think), your Rezound's warranty is handled by HTC, Verizon is just the middle man.
Legally Verizon can't do anything as it is legal for any consumer to root and do whatever the hell they want with the software on their phones, but they can choose not to honor your warranty if they feel your modifications are the reason the phone became faulty. Link http://www.intomobile.com/2010/07/26/iphone-jailbreak-and-android-root-declared-legal-in-us-feds-exempt-smartphone-hacks-from-dmca/
So your safe, have fun rooting worry free !
Isn't there a way to trick your phone so that Verizon can't tell you did it?
Sent from my ADR6425LVW using xda app-developers app
My thought has always been yes I received a unlock code, but show me proof that I actually used the code and unlocked the bootloader.
Sent from my Rezound using xda app-developers app
I have already sent back 4 Rezounds this year under the warranty and as I made of fact I am now awaiting my 5th any day. Each one was unlocked and rooted. I re-flash the RUU before sending it back and have not had an issue yet.
Jimi Mack said:
I have already sent back 4 Rezounds this year under the warranty and as I made of fact I am now awaiting my 5th any day. Each one was unlocked and rooted. I re-flash the RUU before sending it back and have not had an issue yet.
Click to expand...
Click to collapse
have you sent them back for legit problems? and what were you problems? (even if you made them up )
I think the only risk you would have is if they somehow found out you were tethering. It does day in the Verizon contact that you can't tether without using (and paying for) their service.
But I've also heard from countless people that they would never know. Unless you returned a phone with the tether app and files still in there.
Sent from my ADR6425LVW using xda app-developers app
Doesn't tetherguard tell them you are tethering?
Sent from my ADR6425LVW using xda premium
They throw the returns in a bin. The whole idea of non removable battery is to make it easyer on the return department
Sent from my MID7048 using Tapatalk 2
chrisjz said:
Doesn't tetherguard tell them you are tethering?
Sent from my ADR6425LVW using xda premium
Click to expand...
Click to collapse
No...they can't do anything unless you were stock and they had an app or service running at all times to monitor it. Otherwise they would have no way to tell
Sent from my ADR6425LVW using xda app-developers app
cslingerland said:
No...they can't do anything unless you were stock and they had an app or service running at all times to monitor it. Otherwise they would have no way to tell
Sent from my ADR6425LVW using xda app-developers app
Click to expand...
Click to collapse
Not 100% true. If you are doing a WiFi tether, where the device is acting as a hotspot they can tell because they can see more than one private IP being routed through your devices' public IP. This combined with the fact that you don't have hotspot on your account can be considered a breach of contract.

Carriers

Wondering if AT&T will be picking this bad boy up?
Hopefully though I wouldn't hold my breath. In the past, T-Mobile seems to be the only US GSM carrier who gets Xperia phones.
rumors are circulating that its coming out for all US carriers
All UK Carriers are expected to carry the Z2, though no one has confirmed definite pricing or anything as of yet.
Tmobile is UK too i think
but romour is that Z2 is avaliable for all , there seems to be alot of evidence behind this one...
and also some romours of bootloader issues with cariers meaning that you may get a unencrypted bootloader from some cariers
Hope this answers other peoples questions
Sent from my LT26i using XDA Premium 4 mobile app
Envious_Data said:
Tmobile is UK too i think
but romour is that Z2 is avaliable for all , there seems to be alot of evidence behind this one...
and also some romours of bootloader issues with cariers meaning that you may get a unencrypted bootloader from some cariers
Hope this answers other peoples questions
Sent from my LT26i using XDA Premium 4 mobile app
Click to expand...
Click to collapse
will I be able to switch this phone to boost mobile if I buy/get it unlocked?
AceDaMack said:
will I be able to switch this phone to boost mobile if I buy/get it unlocked?
Click to expand...
Click to collapse
unlock = freedom
yes, after sim unlocking your device you can switch to any network
Sent from my LT26i using XDA Premium 4 mobile app
AT&T won't pick this up. I can't remember the last time they offered a Sony flagship. Spectre51 would know. He has always had the inside word on AT&T.
Sent from my C6906 using XDA Premium 4 mobile app

Locked Bootloader? NOPE!!!

I have been hearing around the xda community that this wonderful device will be joining the blacklisted devices over at at&t and Verizon. I am referring to the bootloader. Any good news out there?
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Oops. Does this belong in questions and answers ?
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Yes it does go in Q&A.
There are working models at best buy. I'm not 100% sure how you would check...probably just boot into the bootloader and see what it says.
The T-Mobile version boot loader is usually unlocked.
Sent from my Nexus 7 using Tapatalk
Think we will have to wait and see really.
Not sure when pre orders will ship, but we should be able to find out April 11th
Sent from my SGH-M919 using XDA Premium 4 mobile app
I'm not buying until I know for sure. Even then I might go with HTC since KNOX Security sucks.
I'm gonna tell T-Mobile as soon as I get mine that everything's working fine, don't want a replacement, but note that knox was already tripped when I got it. Ha ha
Not sure how they can dispute that later for warranty issues.
Even though I'm probably not going to root it or anything for a while.
Sent from my SGH-M919 using XDA Premium 4 mobile app
T-Mobile WILL have LOCKED BL
Guys here
This time around it looks like AT&T, Verizon and T-Mobile will have S5 with locked bootloader. (Only Sprint's S5 will have unlocked BL).
1. AT&T started with S4 and continued the tradition there after (G2, N3 etc.) (Also no dev edition AFAIK)
2. T-Mobile started with LG G Flex and looks like it will continue the tradition with S5. (Source) (Also no dev edition AFAIK)
3. Verizon started who knows when? (At least verizon is nice enough to have Dev edition, albeit expensive as hell).
What does all this mean?
Well you can't have "traditional" custom recovery so that means NO ASOP, NO custom Kernels etc.
You can have a recovery called "Safestrap" which will allow you to flash only TW based ROMs and simple MODs such as bootanimations but nothing more.
That is possible.
Not a confirmation that the T-Mobile variant with be locked though.
With the most recent update to the s4 they could have made it locked but they didn't as far as I can tell. Just has knox on it.
Still will need to wait and see I guess.
Sent from my SGH-M919 using XDA Premium 4 mobile app
coming from a you s4
Sent from my SGH-M919 using xda app-developers app
Yup. I like the idea of a faster processor. Even if marginal. The finger print reader and water resistance.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Everyone knows development only really takes off after about 6 months to a year. Give the devs time to crack the possible locked bootloader.
blackknightavalon said:
Everyone knows development only really takes off after about 6 months to a year. Give the devs time to crack the possible locked bootloader.
Click to expand...
Click to collapse
Lol. Look at AT&T's N3 forum
Walter.White said:
Lol. Look at AT&T's N3 forum
Click to expand...
Click to collapse
Or anyone who has taken the S4 MF3 or later updates...safestrap only. I dont know why ppl do OTA's these days its never anything to help us only to hinder us.
sent from vacation in the phillipines via i337M galaxy S4
I got a tmobile s4 and note 3 both with updated 4.4.2 bootloaders and they are not locked. what att do or verizon has nothing to go with tmobile. as far as the lg flex that was lg decision not tmobile as they are all locked. knox has nothing to do with a locked bootloader. I do not see tmobile locking the bootloader
Tmobile decided to lock z1s bootloader. Trend is pointing in the wrong direction if you ask me. Hopefully they don't lock it.
Sent from my SGH-T999 using Tapatalk
chrisram88 said:
Tmobile decided to lock z1s bootloader. Trend is pointing in the wrong direction if you ask me. Hopefully they don't lock it.
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
T-Mobile made Alcatel lock the OneTouch Fierce and they'll do it some more apparently.
T-Mobile Secure Lock.
Haven't seen that on any device so far and the article is almost a year old.
Sent from my SGH-M919 using XDA Premium 4 mobile app
TheArtiszan said:
Haven't seen that on any device so far and the article is almost a year old.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Alcatel OneTouch line are because of Secure Lock, and are still modern phones they are selling. You have the burden of proof on your hands. I for one wouldn't buy a T-Mobile Samsung Galaxy S 5 before knowing 100% it's unlocked or unlockable. Besides... the Note 3 is still unlocked and quite a comparable device!
We'll see in a few weeks.

Unlocked Boot loader AT&T = Dev Edition M8?

If I unlocked bootloader on AT&T does it become equivalent to Dev Edition M8 hardware wise? (I know that they come in different software flavors).
Sent from my HTC One_M8 using Tapatalk
I'm just trying to reason why will anyone want to buy a developer edition?
Sent from my HTC One_M8 using Tapatalk
The only benefits in buying a dev edition is:
No carrier branding
No preloaded carrier apps
Sim free
Bootloader already unlocked
Faster updates with Sense
But if you unlock your AT&T bootloader and flash a international rom you'll have the same device with no more AT&T apps and settings.
Plus with root you can always flash the latest leaks from any variant
Sent from my HTC One_M8 using Tapatalk
So there is nothing s-on or s-off kinda junk limitations? We get fully unlocked bootloader? I'm really happy with this phone in that case!
Sent from my HTC One_M8 using Tapatalk
If I'm correct both devices are S-On.. One just has a bootloader unlocked from the factory. And once we get S-Off then it wouldn't matter what rom or RUU you use. You'll be able to SuperCID and do much more
Sent from my HTC One_M8 using Tapatalk
ceo.mtcl said:
If I unlocked bootloader on AT&T does it become equivalent to Dev Edition M8 hardware wise? (I know that they come in different software flavors).
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
If you don't have a tethering plan, tethering works out of the box on the unlocked and developer models. Then there's the AT&T bloat you can't remove without S-Off.
Other than that, they're pretty much the same and I'm happy with my bootloader unlocked AT&T model, though I would really like to get tethering working.
YoungAceAtlanta said:
The benefits in buying a dev edition is:
1. No carrier branding
2. No preloaded carrier apps
3. Sim unlocked
4. Bootloader already unlocked
5. Faster Android updates
Click to expand...
Click to collapse
Two more to add to this list.
6. Tethering works
7. Full warranty
If you unlock the bootloader on any other phone, you void your warranty. With the developer edition, your warranty is maintained.
Its worth it to note that there is an S-OFF tool now.
Dear young.
Please advice im on 4.2.2 mf3 gs4 ar &t i347.
Rooted.
Can I go to i9505 rom.?
If yes is it kitkat.
I want to use my gear and its not compayible with 4.2.2.
But samsug ask to wait ota.
Im stuck hear.
Please advice.
Can I get stock rom of kitkat to burn on mf3?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
nuwan5213 said:
Dear young.
Please advice im on 4.2.2 mf3 gs4 ar &t i347.
Rooted.
Can I go to i9505 rom.?
If yes is it kitkat.
I want to use my gear and its not compayible with 4.2.2.
But samsug ask to wait ota.
Im stuck hear.
Please advice.
Can I get stock rom of kitkat to burn on mf3?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
I guess you're in wrong forum.
Sent from my HTC One_M8 using Tapatalk
slapdaddy said:
Its worth it to note that there is an S-OFF tool now.
Click to expand...
Click to collapse
Yep already s_offed it. Not sure how helpful it is for me atm but why not.
Sent from my HTC One_M8 using Tapatalk
When you unlock your bootloader you void your warranty. We can do whatever we want to our devices and still be covered under HTC Manufacturer Warranty. You Bork your phone you have to find a way to fix it.
Tethering works out the box without being detected as well.
I always find a unbranded version a advantage over a carrier version.
Sent from my HTC One_M8 using Tapatalk
---------- Post added at 08:09 AM ---------- Previous post was at 08:04 AM ----------
S off your device and than supercid. When all the RUU are released you can flash any of them. Right now we have a GPE conversion. Besides that we can flash any rom we want. Be careful and always remember to read if it is compatible with your model.
Sent from my HTC One_M8 using Tapatalk
charlieb620 said:
When you unlock your bootloader you void your warranty. We can do whatever we want to our devices and still be covered under HTC Manufacturer Warranty. You Bork your phone you have to find a way to fix it.
Tethering works out the box without being detected as well.
I always find a unbranded version a advantage over a carrier version.
Sent from my HTC One_M8 using Tapatalk
---------- Post added at 08:09 AM ---------- Previous post was at 08:04 AM ----------
S off your device and than supercid. When all the RUU are released you can flash any of them. Right now we have a GPE conversion. Besides that we can flash any rom we want. Be careful and always remember to read if it is compatible with your model.
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
My credit card covers my phone warranty for two years as long as I purchased the phone via it. So I'm covered. If something happens, all I gotta do is take a brick and bash my phone with it, my credit card will cover hardware damages as well. Lol.
There are ways around everything, you just need to know it. Either way, I've never been scared to lose crappy warranties just because I felt the need to unlock the phone lol.
Sent from my HTC One_M8 using Tapatalk
ceo.mtcl said:
My credit card covers my phone warranty for two years as long as I purchased the phone via it. So I'm covered. If something happens, all I gotta do is take a brick and bash my phone with it, my credit card will cover hardware damages as well. Lol.
There are ways around everything, you just need to know it. Either way, I've never been scared to lose crappy warranties.
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
So fraud is better huh? Lol
Sent from my HTC One_M8 using Tapatalk
charlieb620 said:
So fraud is better huh? Lol
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Nope, but jealousy of ignorant people is priceless lol.
I think the biggest fraud is from HTC to void warranty on unlocking bootloader. I'm just having myself covered with my resources.
Sent from my HTC One_M8 using Tapatalk
Unlocking boot loader MAY void your warranty. In the USA and Europe it will not(unless they can prove 100% that you caused the issue) due to consumer protection laws. Varies by country.
Sent from my HTC One using xda app-developers app

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