Develop Bugs

Non-Unlockable bootloader + Fastboot?

Hey guys,
I know that some phones bootloader cant be unlocked. I checked mine and of course mine couldnt be unlocked.
My phone is locked to Vodafone and for the love of god I would like to use CM10 on my Xperia Arc S.
Two questions.
1. Is there no possible way to unlock my bootloader?
I mean Sony does officially support unlocked bootloaders. I requested a unlock key and they sent it to me. (I read about having to call your carrier and getting a code of them which can cost up to 50€ or so?)
2. (This is just to make sure that im not failing at a simple task) You can´t Fastboot with "non-unlockable" bootloader correct?
If anyone knows how to install CM10 on a locked bootloader or how to unlock the bootloader with out having to a pay a ridiculous 50€ I would really appreciate it.
I mean I simply can not understand why I should not be allowed/able to unlock my bootloader on MY phone. Its like as if I buy a house and im not allowed to unlock the front door...
Thanks!

Cheesus182 said:
1. Is there no possible way to unlock my bootloader?
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Click to collapse
Yes, click the first link in my sig, which is a sticky in the general section which I wish People would visit instead of coming to Q&A to ask for answer that can be found in the stickys.

Thanks for the reply but I have read that post and I am a little unclear on something.
Primarily this:
There are three ways to Unlock yours, the Standard/Official method (For SimFree/Un-Branded Phones) which is explained HERE, (PLEASE NOTE! - You loose DRM when using the official method but not with the TestPoint) but if your Phone came from a Carrier then chances are (99%) you won't be able to use that method. There is a simple method of checking if you can or not which you'll find HERE.
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Do you mean that the 2 ways under that quote are for people with locked sims or do you mean its generally not possible?
Sorry for the stupid question but id rather be safe than sorry.

Unlocking bootloader has nothing to do with locked SIMs.
Sent from my Xperia Arc S using xda premium

Cheesus182 said:
Do you mean that the 2 ways under that quote are for people with locked sims or do you mean its generally not possible?
Click to expand...
Click to collapse
You need to use the third method as the first two are for SIM-Free, unbranded Phones.

Hmm seems like the only way it could be unlocked is if I pay for it.
Thats lame.
Thanks anyway.

Unlocked bootloader - Remove warning

Hi
I unlocked the bootloader when I first got the phone. I am going to sell it soon to make way for the Nexus 6P.
Is it possible to remove the bootloader unlocked warning when the phone first boots up?
Thanks for any advice.

i guess nope

If your selling and want it back to original the only way I know is fastboot oem lock

darrenjdoc said:
Hi
I unlocked the bootloader when I first got the phone. I am going to sell it soon to make way for the Nexus 6P.
Is it possible to remove the bootloader unlocked warning when the phone first boots up?
Thanks for any advice.
Click to expand...
Click to collapse
If you're going to sell a device that is bootloader unlocked, you have to tell this the person you're selling it to, since it's no longer covered by the warranty. Don't tell me it is. Currently only the European model is unlockable and here in europe laws and regulations are unified among countries within the EU. I hope you do. Otherwise it's just fraudulent, but that's none of my business.
passion8059 said:
If your selling and want it back to original the only way I know is fastboot oem lock
Click to expand...
Click to collapse
No, that command does not work on bootloader unlockable devices unless it's a Nexus/OPO/OPT/Huawei/Oppo and some older Motorola devices. etc.

Phone bootloader locked

Hello guys, I have a small problem after locking my oem bootloader with fastboot after having to reset the marlin image it is no longer letting me unlock it, so I'm stuck with stock, is there anyway to fix this?

Did you purchase from Verizon, or some place other than the Google Store?

From Verizon but I was able to unlock it the first time, I got the replacement rom online from a link about resetting the google pixel

Not supposed to relock it. anybody read anymore?

jjayzx said:
Not supposed to relock it. anybody read anymore?
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Click to collapse
Nope

turb0z said:
From Verizon but I was able to unlock it the first time, I got the replacement rom online from a link about resetting the google pixel
Click to expand...
Click to collapse
Try Depixel8?

Depixel 8 doesn't work because the bootloader won't unlock

Change from Chinese rom to global rom.

Hi there I have the chance to get two of these good smartphones in China for a good price. The problem is that they have the Chinese rom on it and my parents need the italian language. Will it be possible to flash the global rom or just add the italian language?
Thanks.

barbonjoe said:
Hi there I have the chance to get two of these good smartphones in China for a good price. The problem is that they have the Chinese rom on it and my parents need the italian language. Will it be possible to flash the global rom or just add the italian language?
Thanks.
Click to expand...
Click to collapse
Based on my experience b4 unlocking 5A, the only way you can switch from China to Global is to flash it via test point. Unless you've unlocked the phone, you could flash it via fastboot. Is your 5A unlocked yet?

ezrawk said:
Based on my experience b4 unlocking 5A, the only way you can switch from China to Global is to flash it via test point. Unless you've unlocked the phone, you could flash it via fastboot. Is your 5A unlocked yet?
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Click to collapse
I haven't bought them yet. So I just need to unlock it and flash the rom?

barbonjoe said:
I haven't bought them yet. So I just need to unlock it and flash the rom?
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Click to collapse
Yep, that's all you need to do. After an unlock, you do have the option to relock your bootloader (which maybe you're already familiar with). The guide is on the miui forums. Good luck!

ezrawk said:
Yep, that's all you need to do. After an unlock, you do have the option to relock your bootloader (which maybe you're already familiar with). The guide is on the miui forums. Good luck!
Click to expand...
Click to collapse
Thanks!

i did it using xiaomi tool, google it its easy and works.

jasonhelene said:
i did it using xiaomi tool, google it its easy and works.
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Click to collapse
Yeah but with a locked bootloader, Xiaomi Tool still can't cross flash between China & Global.

Cinese to Global Redmi 5a. Yes you can
In phone settings >About phone>Miui version (click 7times) you will be a developer. back to settings>additionalSetting> developer option>
Turn_On_developer option
OEM UNLOCK_ON
USB DEBUGING_ON
You have to check here if your (Mi Unlock status)
if it shows your "device is locked" your phone is secured" check bellow there you have to add your Mi account. next turn phone OFF. volume down+power to start phone to FASTBOOT MODE. now login to PC. with same ACCOUNT, GO to miui unlock site download unlock app to pc login with miui account connect to Phone. click unlock. they will give you approx (360Hours)after 360 hours repeat procedure with pc. this time it will Unlocked. check mi status again in your phone. if its unlocked you can now download Miui Stable ROM from their site update your phone legally. i am new user here in xda so i am not allowed to share links here in xda.
,

I bought the Chinese version of MIX3, but I want to FLASHi the international ver。

I saw an international version of the ZIP package coming out. OTA cannot be upgraded directly.
What should I do?
thanks.
I prefer to FLASHthe Xiaomi International Edition ROM, which will retain more of Xiaomi's features.

newfantasy123 said:
I saw an international version of the ZIP package coming out. OTA cannot be upgraded directly.
What should I do?
thanks.
I prefer to FLASHthe Xiaomi International Edition ROM, which will retain more of Xiaomi's features.
Click to expand...
Click to collapse
Unlock bootloader, flash twrp, flash the global zip mentioned several times in the forum. Better with EU chinese ROM as more features than global

Mackay53 said:
Unlock bootloader, flash twrp, flash the global zip mentioned several times in the forum. Better with EU chinese ROM as more features than global
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Click to collapse
Thank you, but I saw the EU version of the ROM, can not re-lock the bootloader, do not know if there will be anything bad.

newfantasy123 said:
Thank you, but I saw the EU version of the ROM, can not re-lock the bootloader, do not know if there will be anything bad.
Click to expand...
Click to collapse
Correct. If you try and lock the bootloader on the EU Chinese ROM or Global it's good bye phone.
If you don't unlock bootloader you'll be stuck on the Chinese ROM forever.

Mackay53 said:
Correct. If you try and lock the bootloader on the EU Chinese ROM or Global it's good bye phone.
If you don't unlock bootloader you'll be stuck on the Chinese ROM forever.
Click to expand...
Click to collapse
thank you very much.
Is there any bad things after unlocking the bootloader?

newfantasy123 said:
thank you very much.
Is there any bad things after unlocking the bootloader?
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Click to collapse
No. I've had an unlocked bootloader for about the last ten years.

Hi, I just purchased one mi mix 3 chinese version. I am new to unlocking bootloader and flashing TWRP . Can someone please point me to the correct thread that gives details on how to unlock boot loader and flash twrp.
Thanks in advance.

pangag said:
Hi, I just purchased one mi mix 3 chinese version. I am new to unlocking bootloader and flashing TWRP . Can someone please point me to the correct thread that gives details on how to unlock boot loader and flash twrp.
Thanks in advance.
Click to expand...
Click to collapse
Go back to the guides, news, & discussion thread

Mackay53 said:
Go back to the guides, news, & discussion thread
Click to expand...
Click to collapse
Nice Direction......

Relocking the bootloader
Question, Can I lock the bootloader after flashing the official global rom on the Chinese version? or it's also bye bye phone?

Eran baruch said:
Question, Can I lock the bootloader after flashing the official global rom on the Chinese version? or it's also bye bye phone?
Click to expand...
Click to collapse
Bye bye phone

possible use gpay with global on chinese phone with unlocked bootloader?

Why would you want to lock the bootloader?

Well?

ToneLa said:
Well?
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Click to collapse
Well what? If they want to lock the bootloader they can lock the bootloader.

That doesn't answer why! if it bricks the phone it might be useful to understand the process a bit fuller. I'm buying the Chinese version myself so want to be aware of why you'd want to lock the bootloader again

ToneLa said:
That doesn't answer why! if it bricks the phone it might be useful to understand the process a bit fuller. I'm buying the Chinese version myself so want to be aware of why you'd want to lock the bootloader again
Click to expand...
Click to collapse
Return to stock, to sell, improve security, warranty etc
You'll only brick it if you install and lock the global ROM on a Chinese device, Chinese rom on a global device, or lock on the Chinese EU ROM

Cool. So if I get the Chinese one I'll put the EU one on.
I don't think I'd need to worry about locking the bootloader for a long time. I want this phone to last a few years and it seems reliable enough. And the processes will improve all the time.
Thanks!

ToneLa said:
Why would you want to lock the bootloader?
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Click to collapse
Locking the bootloader is for certain applications and features that requires a more "secure" phone, since an unlocked bootloader is considered not "secure".
Payment Applications, Banking Applications, and DRM applications (Netflix) and such requires the phone to have a locked bootloader, or it will not work.

LiFE1688 said:
Locking the bootloader is for certain applications and features that requires a more "secure" phone, since an unlocked bootloader is considered not "secure".
Payment Applications, Banking Applications, and DRM applications (Netflix) and such requires the phone to have a locked bootloader, or it will not work.
Click to expand...
Click to collapse
Are you forgetting Magisk? I'm unlocked since surviving 72 hours of stock locked hell. All my banking apps and Google pay have worked for the past 2 months.
BTW stock Chinese or Dev or Global are garbage compared to the EU version anyways.