Sony's My Xperia Theft Protection breaking certain bootloader unlocked models

Sony's My Xperia Theft Protection breaking certain bootloader unlocked models
Recent Sony Xperia models such as the Sony Xperia Z3+, Sony Xperia Z4 Tablet, Sony Xperia C4 and the Sony Xperia M4 Aqua offer extra security through My Xperia Theft Protection. The latter prevents someone with a stolen Xperia model from wiping the device and installing a custom ROM without knowing the owner's Google sign-in details.

MXTP is designed to prevent the bootloader on an Xperia device from getting unlocked. If My Xperia Theft Protection is enabled, the consumer will not be given the opportunity to unlock the bootloader, even if the phone or tablet comes out of the box with that option.

A major problem is taking place with Xperia models that already have the bootloader unlocked when MXTP is enabled. Since the unlocking has already taken place, the security feature is trying to shut the barn door after the horse has bolted. And in the process of trying to prevent something that has already occurred, the phone becomes damaged permanently.

Sony has changed some of the wording on its Unlock Bootloader site regarding the use of MXTP. Under the section titled Risks, Sony reminds device owners not to enable MXTP after unlocking their device. The manufacturer also reminds users to turn off MXTP before unlocking the bootloader on their phone or tablet.

Right now, there are no custom ROMs available for the Sony Xperia Z3+, Sony Xperia Z4 Tablet, Sony Xperia C4 and the Sony Xperia M4 Aqua, which eliminates the need for consumers to unlock the bootloaders on these models. Additionally, Sony doesn't allow consumers to unlock the bootloaders on these devices for the time being, anyway. That might change though, once the MXTP is fixed.

Sony changes the wording on its Unlock Bootloader website to reflect the risks of using MXTP

Sony changes the wording on its Unlock Bootloader website to reflect the risks of using MXTP


source: Sony, XperiaBlog via AndroidCentral

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11 Comments

1. waddup121 unregistered

oh damn!

2. tsarma12

Posts: 10; Member since: Jul 08, 2015

i bought this phone 2 weeks back. yesterday i swithed off my phone. after i switched on it i got struct with "Protected" interface.MXTP gave me the lockdown screen with the verify, wifi settings and emergency call options on it. So as I wanted to unlock my device i pressed the verify button and a log in screen for my google account appears. I use my google account on all kinds of different devices so I logged in. But here someting goes wrong. When I typed in the username and password to verify it is my M4 it gave me a loading icon for 2 seconds and then it says "incorrect username and/or password" and my M4 stays locked. To double check if my password and username are correct i logged in to another adroid device and my laptop with no problems. So now I'm stuck with a brand new non working xperia M4.I have already tried to factory reset with sony pc companion.. but even after that the problem stands. in sony's website on a post the said that " as this MXTP is combined with boot loader even after factory reset the problem will remain". :( as im from srilanka i dont even have a service center. helpless at all.. if anyone know the way to get rid off this please help me..

3. rency0722

Posts: 158; Member since: Jun 12, 2013

I think you need to ship this phone to the nearest service center available, together with the warranty card. You need to call them as soon as the phone arrives to verify the ownership, then you'll provide them your Google account details for further verification.

4. Cyberchum

Posts: 1013; Member since: Oct 24, 2012

Sorry bro, that's messy. Hate it when stuffs like this happen. Sony should have created proper awareness for that app/feature, like an EULA. Wouldn't want to be in your shoes right now, but then, who would?

5. yoosufmuneer

Posts: 1518; Member since: Feb 14, 2015

Sri Lanka. Where about?

6. yoosufmuneer

Posts: 1518; Member since: Feb 14, 2015

Metropolitan is the agent in Sri Lanka. If you have the warranty card you could get it done

7. tsarma12

Posts: 10; Member since: Jul 08, 2015

could you please give me the full details about it? my mail id tsarma12@hotmail.com. thanks in advance.

8. yoosufmuneer

Posts: 1518; Member since: Feb 14, 2015

Where in Sri Lanka are you in?

9. tsarma12

Posts: 10; Member since: Jul 08, 2015

jaffna..

10. yoosufmuneer

Posts: 1518; Member since: Feb 14, 2015

You have to come to Colombo.http://www.metropolitan.lk/network.aspx If you have the warranty card you can get the work done.

11. ppoojavermaa

Posts: 45; Member since: Mar 18, 2015

OMG!!!!!

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