Unlock bootloader allowed from NO to YES after waranty end - Xperia Z Q&A, Help & Troubleshooting

Hi i just had the strangest experience and i would like to know if it possible such thing.
I had a contract Z5C to Vodafone 2 years ago. In this time every-time i accessed the service menu i had a network lock and option Boot-loader unlock allowed to NO and adb unlock command would allways fail.
I went to a Sony store last year and they said that after i network unlock it, the option will become YES (for boot-loader).
Now the fun stuff :
I finally got from Vodafone the unlock code but big surprise : My phone is already network unlocked and the Boot-loader unlock allowed is YES, so at this point the code received from Vodafone is useless.
The only thing i can think of is that it automatically unlocked at the end of the warranty (expired on 26 last month). So is this possible? to automatically network unlock after warranty end?
P.S.: This evening, once i`m home, i will try again to unlock the boot-loader (i already backed up the DRM keys by downgrading using yoviroot last year).

Related

Unbranded from 3 network (bootloader unlock allowed no)

I recently bought the Xz on the 3 network (uk) and straight away wanted to get on aosp but this was shortly lived when my bootloader unlock status said no!!! Arghhh!!!
After moving from the HTC one X this was a massive disappointment as I loved the IceColdJelly Rom from Lord.
So I started to look into how to get around this and came across a solution online saying you need to network unlock the device officially from your network operator this would then change the bootloader unlock allowed status to yes.
Great but I cannot get this yet as 3 state you need to be over 1 month into the contract witch I sadly am not.
I then done a bit of thinking and wondered if I managed to get onto the official unbranded software from Sony via an official method I may be able to get round it.
To do this I:
Rooted for locked bootloaders
Installed twrp for locked bootloaders
Installed one of the roms for locked bootloader (353?)
Then plugged my phone into the computer and started up the Sony update software and this gave me the option to update my phone to the latest 434? Software (something I couldn't get while on the branded stock rom)
So update done I reset the phone from within settings and preyed my bootloader unlock allowed status had been changed from no to yes. But no it hadn't .
So what's the point of this post?
Well I'm sharing my way of getting the latest update from Sony officially if anyone would ever want to do it that way.
But also I'm opening this thread to discuss if anyone had unlocked their network limitations and found that it changed the bootloader unlock allowed status.
Thank you for your time
Hi.
I renewed my contract with Three and got the XZ, and like you was hoping it had the unlockable bootloader. I knew I had the contract I needed anyway and was prepared to do whatever I had to do if the bootloader was properly locked. In the end the only thing I could do was get rid of the phone and buy one that was Sim free and bootloader unlockable. I bought it from Phones for you and checked the bootloader status before I handed over any money.
When I had my "old" XZ, I put it up for sale and in the hope of getting it sold easier I had it sim-unlocked by Three and I flashed UK unbranded firmware. As expected, unlocking the Sim and flashing unbranded firmware did not change the bootloader status.
In short, the only way to run something like CM is to sell your blower and buy one with a suitable bootloader.
Ah well that sucks surely it's not down to the carrier to impose these limitations apon the end user? There must be a way around this even if it is contacting Sony, surely if I the owner of my phone want to. Unlock my bootloader it's for me to decide, not the middle man.
Sent from my C6603 using xda app-developers app

[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

I replaced the motherboard and T-mobile unlocking code not working

Hey, after update (1 year ago on Jan) my SM-N910T started to freeze and restarting. So I decided to buy same unit but with broken screen. I replaced the motherboard and since that broken phone wan't unlocked need to unlock it. I asked the previous owner to contact T-Mobile for the unlock code (IMEI was right). He sent me the unlock code that T-mobile has provided him but the phone says it's incorrect. (I did it with non T-mobile simcard)
1. What do you think the web pages that provide sim unlock codes for $$$ would send different one?
2. I Made factory reset data from a prev user with his Samsung account signed. So it was locked on startup. I bypassed reactivation lock may it be the purpose why it says T-mobile unlock code won't work?
3. Is there a way to see how many input unlock code attempts I have?
4. How to check o'm on official firmware? (or since I get T-mobile updates via wi-fi it's official)
any suggestion why this happens?
He had to of given you the wrong code?......if you want to pm me I'll give you info on someone that dose it remotely on you laptop or pc for a lot cheep er then anyone elts...also dose frp unlocking

Bootloader re-locked after OTA update

Hey, for a reasons I needed to do ota update (reflashed stock recovery[extracted from matching update] before doing so), now when im trying to reinstall TWRP i've noticed that my bootloader re-locked on its own.
Was this supposed to happen? iirc people keep telling you that you can't relock bootloader without it's backup from locked state.
It's quite annoying that it happen since I did pay for unlock via DC unlocker and now huawei stopped distributing unlock codes so I'll probably need to pay DC again.
Cheers!
edit: DC unlocker did not even allow me to Unlock bootloader, only thing i saw was Lock bootloader, but there was option to "Read bootloader code" (no credits needed) and I managed to unlock bootloader again using fastboot and this code
TheRadziu said:
Hey, for a reasons I needed to do ota update (reflashed stock recovery[extracted from matching update] before doing so), now when im trying to reinstall TWRP i've noticed that my bootloader re-locked on its own.
Was this supposed to happen? iirc people keep telling you that you can't relock bootloader without it's backup from locked state.
It's quite annoying that it happen since I did pay for unlock via DC unlocker and now huawei stopped distributing unlock codes so I'll probably need to pay DC again.
Cheers!
edit: DC unlocker did not even allow me to Unlock bootloader, only thing i saw was Lock bootloader, but there was option to "Read bootloader code" (no credits needed) and I managed to unlock bootloader again using fastboot and this code
Click to expand...
Click to collapse
This is a flag in OTA update, it may be present or not (now seems to be always enforced, new Huawei policy) that OTA locks Bootloader
You cannot disable this flag in OTA package
Bootloader is not relocked but really locked (better for those who go to service under warranty)
Bootloader code is unique for your device.
No matter did you obtain it from Huawei or DC, you have TO KEEP it, you don't need to pay, read or ask again, just use the same bootloader code for the same phone for the lifetime of your phone
zgfg said:
This is a flag in OTA update, it may be present or not (now seems to be always enforced, new Huawei policy) that OTA locks Bootloader
You cannot disable this flag in OTA package
Bootloader is not relocked but really locked (better for those who go to service under warranty)
Bootloader code is unique for your device.
No matter did you obtain it from Huawei or DC, you have TO KEEP it, you don't need to pay, read or ask again, just use the same bootloader code for the same phone for the lifetime of your phone
Click to expand...
Click to collapse
thanks for the answer, didnt know about flag nor that bootloader unlock code can be used multiple times(and that its paired with HW)
nevertheless, as I said in my edit I managed to get my unlock code for free with dc unlocker
TheRadziu said:
thanks for the answer, didnt know about flag nor that bootloader unlock code can be used multiple times(and that its paired with HW)
nevertheless, as I said in my edit I managed to get my unlock code for free with dc unlocker
Click to expand...
Click to collapse
Did you compare it, is it the same like previous time
zgfg said:
Did you compare it, is it the same like previous time
Click to expand...
Click to collapse
that's what I suspect, but sadly can't confirm or deny. I think I didn't even see the code itself when I used it for the first time due to the fact that unlock process was automatized within DC unlocker's client app, so all I had to do was to prepare the phone and press Unlock Bootloader within the client
TheRadziu said:
that's what I suspect, but sadly can't confirm or deny. I think I didn't even see the code itself when I used it for the first time due to the fact that unlock process was automatized within DC unlocker's client app, so all I had to do was to prepare the phone and press Unlock Bootloader within the client
Click to expand...
Click to collapse
I used DC client once (4 Euros), I obtained the code (saved it for future) and used in Fastboot to unlock Bootloader just like previously for the other Huawei phone whose code I obtained for free from Huawei (before they closed this service)

Rooted but cant Unlock Bootloader? (Xperia E1 D2004)

i got this from a friend in Canada (i live in the states) was surprised i was able to get the SIM Unlock code but not sure how much more usefull past end of 2019 actuall cell service will be on this as 3G is shutting down by providers in my area by Jan 1st 2021). I Managed to root it Easily (Towelroot/Kingoroot)but notice theres custom roms avilable for this aging phone./ ( wouldnt even use this for everyday use, i have a galaxy A20 as my daily driver as it were,)
Going thru the Service menu, and looking at options it does sadly show the bootloader is in an "No" state for unlocking. Is there a means to force this so i can flash TWRP&LineageOS?
You can unlock bootloader only using fastboot and unlock code. To get unlock code visit
Unlock Bootloader - Open Devices - Sony Developer World
developer.sony.com

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