Cons of unlocking bootloader - Nokia 8 Questions & Answers

Can anyone tell me what cons are in unlocking bootloader
What functionality will i lose if i unlock the bootloader

You loose your warranty on the very moment you unlock as HMD says...
On the other hand your phone may be unsecure, even if you protect it with a password or fingerprint lock someone could get access to your data with ease if you lose it or if it is stolen.
That being said, unlock only if you want to root it and are up to the risks mentioned above ?

Related

[Q] unlock bootloader in SIM locked phone

I couldn't find anything by searching the older threads so here is my question:
Is it possible (and reasonably save) to try and unlock the bootloader in a SIM locked x8? Just to clarify: I don't want to remove the SIM lock from my phone - I'm happy with my current provider. I'm just wondering if I can unlock the bootloader while I still have a SIM lock on my phone.
All the threads about unlocking seemed to be concerned about how the phone was SIM unlocked rather than whether it was actually necessary...
Thanks a lot in advance..!
anyone please?
I just want to know if I can unlock my bootloader while I still have a SIM lock in place. Or will I brick my phone then? I don't want to remove the SIM lock. Just flash a custom kernel so I can get proper wifi tether...
same question... now,why is necessary have unlocked by operator the phone ???
is very maddening D:
so so please developers unlock bootloader with phone locked by operator, many peoples will thank you
reggards

[Q]root and sim unlock

i want to unlock my phone so it will be sim-free,withot purchasing unlock code,is it possible?
if i unlock my bootloader it will help?
there are other possible ways ?
I believe, network unlocking will only work with an unlock code. So you have to buy one.
Unlocking the bootloader wont help in this situation.
Anyway, if you have a Droid, then your bootloader is not locked by default, but if you have a Milestone, theres a bad news, you cant unlock its bootloader.

[Q] Unlocking?

I'm trying to figure out exactly what you lose when you unlock Z3(C).
So far I've discovered that:
- Sony has a webpage that allows you to unlock your device
- Unlocking your device will void your warranty
- Unlocking is the only known way to get root (at least right now)
- Unlocking your device will kill the "TA partition" that contains DRM keys
- Loss of the aforementioned DRM keys will cause some stuff to stop working
I found a huge thread on backing up TA partition for older xperia devices, but no good information RE: what exactly you lose if you wipe out the DRM keys by unlocking.
Do any of you know definitively: what the DRM keys are for and what you lose?
As an aside - it looks like backing up TA partition is only possible before you unlock bootloader and if you've rooted your phone (so probably not possible on Z3C until someone finds a working exploit to get root with a locked bootloader).
Thanks in advance for any insights.
I don't think there is a definitive place which says exactly what you lose by unlocking the boot loader but judging by what people having been saying after unlocking the Z3C and other Xperia phones on 4.4 it seems like the answer is nothing. Nothing is lost on the software side at all.
On the z1c I neglected to back up the TA partition. And apparently lost native mirror cast and some camera features when I rolled the device back to stock.
Back up your TA partition before unlocking BL... If not for the I'm tact features turn for your warranty!
http://forum.xda-developers.com/showthread.php?t=2292598
Those that have rushed into unlocking the BL without backing up the TA partition risk voiding warranty I'm afraid.
dillalade said:
On the z1c I neglected to back up the TA partition. And apparently lost native mirror cast and some camera features when I rolled the device back to stock.
Back up your TA partition before unlocking BL... If not for the I'm tact features turn for your warranty!
http://forum.xda-developers.com/showthread.php?t=2292598
Those that have rushed into unlocking the BL without backing up the TA partition risk voiding warranty I'm afraid.
Click to expand...
Click to collapse
Problem is, you need root to use those backup tools... So we would need a temp root exploit to backup before unlocking. But from what I've read so far, it doesn't seem like you lose that much, if anything.
I am also curious about this as I need root access but would like to preserve the warranty. Somebody else has also started a thread with what breaks with unlocking: http://forum.xda-developers.com/showthread.php?t=2890936
TiMiN8R said:
Problem is, you need root to use those backup tools... So we would need a temp root exploit to backup before unlocking. But from what I've read so far, it doesn't seem like you lose that much, if anything.
Click to expand...
Click to collapse
Most important consideration is your warranty such if your happy to lost it then unlock your BL.
dillalade said:
Most important consideration is your warranty such if your happy to lost it then unlock your BL.
Click to expand...
Click to collapse
It's not that definitive that you will lose warranty. Sony says it may void your warranty. Known issues with the specific model or batch, or other hardware problems that could not be caused by flashing custom ROMs/kernels will most likely still be covered.
http://www.phonearena.com/news/Sony...oader-unlock-tool-voids-your-warranty_id32972
I myself have sent in my Xperia T twice since unlocking the bootloader and on both occassions it was covered by the warranty.
Mind you, I did relock the bootloader and flash a stock FTF before doing that.
Flashtool has a function to relock the bootloader
http://www.digitalinternals.com/mobile/keeping-warranty-intact-sony-xperia-unlocked-phones/264/
I don't know if this works on our phone already, maybe someone who has already unlocked would like to try?

Dangers of unlocking?

Hello,
My Z3C has bootloader unlock allowed: no.
Is there any problem if I try to unlock it anyway?
Thanks!
BenjaGM said:
Hello,
My Z3C has bootloader unlock allowed: no.
Is there any problem if I try to unlock it anyway?
Thanks!
Click to expand...
Click to collapse
No there is no problem, you probably won't be able to unlock it and that will be it.
Of course just remember that unlocking your bootloader will permanently disable some DRM-protected features.
The way around that is just to use the root exploit and backup the TA partition (good guide here).
If it say unlock allowed no, there is no way to unlock it so no point trying. But no trying won't do any harm, it's just pointless.
Some people were reporting that after sending in their phone for some hardware issues the phone they got back (the same one) had changed to booloader unlock allow yes. So this could be your last resort if you are lucky and willing to wait a bit it might work. Just make up some hardware issue like random crashes, rebooting or something.
And save your TA partition if you do that so maybe someone in this forum can spot the changes of before vs afterwards which would point in the direction what actually changes.

UNLOCKING BOOTLOADER : What i'm going to lose.

Guys, i've been using many mainstream brands like HTC, Sony, Samsung, etc but im newb to Huawei.
For Sony device, im going to lose DRM keys for good after unlocking BL (not to mention backup TA) and many other features & functions like screen mirroring & camera quality degrade.
For Samsung, the well known Knox.
Im about to unlock my P9Plus but by reading this, quoted frm Huawei bootloader unlocking page, im abit scared of losing Leica image processing for instance.
4.Some functions will no longer work after you unlock the bootloader. For example, you will no longer be able to use Digital Rights Management (DRM) keys and digital content that you have purchased. Upgrading software using Firmware Over-The-Air (FOTA) or a microSD card may fail or your device may not function properly after upgrading.
Click to expand...
Click to collapse
Can anyone shed some lights?
I asked this before i unlocked my bootloader, as my previous phone was also a Sony.
I was told nothing would be lost, and from what i can tell, the phone still seems the same as it was out of box.
If you do notice anything, please let me know as well.
I haven't received any OTA update, but i can always download and update via SD-Card if i require.
Haven't tried playing any videos on the phone, besides ones that I've taken myself, but nothing i have contains DRM protection so I don't see any issues there anyway.
This is my 3rd Huawei Device after the P8 & Mate 8.
On all the devices I didn't notice any changes after unlocking.
how about screen mirroring & netflix/iflix HD. if im not mistaken netflix wont play HD movies if DRM is absent on device.
Hi, i wan't to temporary unlock BL only to de-brand my P9+. So i'll relock it after the operations. In that scenario, what happens to my warranty? If now I check the warranty status with Huawei services, i receive a message that the phone i regularly under warrenty until xx/xx/xxxx. If i unlock BL that message remains or will change in something as "NO WARRANTY..."
Thanks
stalvatero said:
Hi, i wan't to temporary unlock BL only to de-brand my P9+. So i'll relock it after the operations. In that scenario, what happens to my warranty? If now I check the warranty status with Huawei services, i receive a message that the phone i regularly under warrenty until xx/xx/xxxx. If i unlock BL that message remains or will change in something as "NO WARRANTY..."
Thanks
Click to expand...
Click to collapse
If you somehow already have the bootloader unlock code (e.g. from DCUnlocker), then the warranty displayed on the website will not void, at least on my Singapore's VIE-L29C636. But I am not sure through if you get the unlock code via the official EMUI website. Your bootloader's state will become "unlocked", and if you do relock your bootloader, it will show "relocked" instead of "locked". Read my post here to revert it back to "locked" state.
everybody MIA :laugh:
Sent from my Huawei P9 Plus using XDA Labs

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