Unlocking Bootloader disadvantages - Sony Xperia XA1 Ultra Questions & Answers

Hello guys what are the disadvantages of unlocking th bootloader for xa1 ultra

loose low light camera processing. Most of all when booting it says the "Phone can not be trusted" which is annoying.

Do xa1 ultra have bravia engine

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[Q]BE rol in lock and unlock bootloader

hi bros/
my boot loader is unlock and my bravia engine not work.if i close my bootloader does it work again in close bootloader?
or
i lost my BE for ever?
Depends on what device. Typically it is gone once you unlock. There is a mod to get it working once you relock but it only Works on certain devices.
Sent from my Sony Xperia™ Z
my device is acro s/wich mod can be coming back that to my phone?
that working for once time?
Yeah, sad also. If Sony is really developer friendly they shouldn't have done this (DRM keys thingy).
Try this mod: http://forum.xda-developers.com/showthread.php?t=2068225
This will restore download music info & Bravia Engine when relocking bootloader.

mirrorlink with unlocked bootloader ?

Hello.
I have a Xperia Z1c, bootloader unlocked and rooted, on 4.4.2 (14.3.A.0.757). I tried mirrorlink with my Sony XAV602BT car audio and get an error when connecting (error code 42). It worked with my xperia SP so I don't thing the car unit is faulty.
Do you thing DRM rights may be a cause (I unlocked bootloader) ?
Thanks
Possibly, I can't use NFC with my W9 Bravia and put it down to the fact that my BL is unlocked, where as my locked BL Z had no issues. They do warn you this might happen so can't complain really.
Sent from the app on my Z1C...
no complain at all... just want to know.
I will restore TA and see...
Yep... Coming back to locked BL with TA and mirrorlink works.
Have the same Problem with a Xperia Z1 compact, what is the meaning of TA?

[Q]T3-D5103 flash T2 Ultra soft

Hi,
Can we (T3 users) flash T2 Ultra Sony's stock rom from tft? Has anyone tried it? Both phones have the same SoC. Sony does not say anything about update T3 to 5.0/5.1.1 . I can't flash custom rom 5.0 or higher because I had a Orange branded phone (locked bootloader; "Bootloader unlock allowed: No") only tft can resolve problem with newer soft.
It doesn't work. After flashing it the phone doesn't boot from what I remember.
Did you unbrick it? Tell how you do it.
I didn't flash anything, it was someone else from the forums who tried it.
It'll not gonna work... But if u can port for T3 it may boot but still u face some major bugs

Does XA1 losing some functionality when bootloader is unlocked?

I would like to buy XA1 and root it like I always do on other phones, but i'm curious about what happened of you unlock bootloader on XA1.
Does XA1 lose some functionality when bootloader is unlocked, like Z devices?
Yes. DRM gets wiped out once you unlock bootloader. The Camera loses some functionality.
Oh darn I just found a thread about it and it seems they haven't found root exploit yet

How to relock bootloader? XA1 Plus

I purchased a XA1 Plus since I needed an upgrade (so-05d from docomo) which I rooted way back then. I though I would try to root my new XA1 Plus since I like the flexibility and access of root, I got up to the point of unlocking the bootloader but I can't for the life of me find a proper guide / how to root my XA1 Plus.
Thus, I would (if possible) to relock the bootloader on my phone so I can get system updates and remove that annoying message at start of every boot.
The method I used was straight from Sony
https://developer.sonymobile.com/unlockbootloader/
Any help is appreciated, thanks.
Just flash a stock FTF from Xperifirm using Flashtool then relock it after the flash is completed.
Hi - Can you please share the steps on how did you root xperia XA1 plus model ? I want to root my phone.

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