unlock and return to stock - warranty? - OnePlus 5T Questions & Answers

I'm thinking of returning/replacing my phone due to the issue with the screen (one side is darker).
I unlocked the bootloader und rooted the phone. Am I'm going to have any problems because of that? If I return to stock, will they be able to detect that it was unlocked?
I did find this statement in the faq:
The technical process of rooting or unlocking the bootloader does not void the warranty of a OnePlus device. However, we strongly suggest for you to only root or unlock the bootloader of your OnePlus device if you are confident in your understanding of the risks involved.
By accessing resources regularly unavailable to the software, you may damage your hardware during or after the procedure. Such damage is not covered under warranty. In warranty handling, we will first need to verify that any faulty behavior is unrelated to rooting / unlocking.
I'm still within the 15 day return period.

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Hoe to unlock bootloader and root?

This is my first time to use htc phone. I am not understand the bootloader. How can I unlock it and root the phone?
t2950486 said:
This is my first time to use htc phone. I am not understand the bootloader. How can I unlock it and root the phone?
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Currently you can only do this via HTC see here. However, it will void some aspect of your warranty if later on you need to send it back for repair, as HTC keeps a record of the phone have been unlocked by them.
I'm waiting until some clever developers come up with another way so we can unlock it without going through HTC.
Check the sticky in the Development thread, there are already "How to" guides posted.
http://forum.xda-developers.com/showthread.php?t=1556771
Although as Bigmille says, if you use the HTCdevelopers.com official method to unlock the bootloader, it's possible it may void your warranty, if HTC claim that any fault is caused by you loading unofficial software onto your phone. You should be fine for strictly hardware issues, though - as long as they can't claim they were caused by any software you loaded.
The official bootloader unlock leaves traces behind, so even if you re-lock your phone before returning it, they will know that you have unlocked it.
I'm hoping that we will have unofficial S-Off methods soon, so we can return the phone to factory state without the warranty being affected.
If I want to root, I need to unlock bootloader. But we should wait for the other S-OFF method, not use the HTCdevelopers.com official method. Is it right?
The choice is yours, really. Not sure if I'll wait or not, but for now I'm giving myself a few days with the phone before I decide, just to make sure I want to keep it. Though I think I will.
And I'm not sure how long I'll be able to wait before I root.

[Q] How to relock bootloader to 'locked' not 'relocked'

Hi guys, i have a question, i want to return my phone for warranty and i've read this thread that if your bootloader is showing 'relocked' you cannot return the device for warranty.
I am here to ask if there is a way to make the bootloader show 'locked' bootloader instead of 'relocked'?
it would be GREATLY appreciated if you could help me. thanks!
for those who want to relock their bootloader can follow the instructions here
There is no way to do that ATM.
If the problem is the hardware issue, HTC should honor the warranty.
ckpv5 said:
There is no way to do that ATM.
If the problem is the hardware issue, HTC should honor the warranty.
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actually i'm looking to sell the phone, the phone have no issues whatsoever, but if the person i sell to wants to claim warranty, it may be an issue.
Not possible. When you got your unlock bin from HTC, it logged the device info. There gonna know right away it was tampered with.
rayford85 said:
Not possible. When you got your unlock bin from HTC, it logged the device info. There gonna know right away it was tampered with.
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so that means there is no option to claim warranty unless i pay for the 'fines' or charges that incur to repair my device?
zincsnow said:
so that means there is no option to claim warranty unless i pay for the 'fines' or charges that incur to repair my device?
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Correct. From what I've read, unlocking voids the warranty instantly (even tho htcdev says it "could" void your warranty) So any repairs are gonna cost you.
Sent from my HTC One X using xda premium
I saw this
kfasheldon said:
OK.. while trying to re-flash my phone after messing up, I tried to re-lock (fastboot oem lock) and it put up 3 messages, 1 succeed, 2 failed, on reboot of phone it read locked.
Yes!! Locked not re-locked ! I forgot I had not flashed stock recovery ! So triued to unlock, it worked but I could not flash stock recovery, failed, but I could re-lock with same LOCKED message, if I then went from HBoot to Fastboot I got a new menu SECURITY .. bellow locked a message SECURITY WARNING, if I select SECURITY menu then I get a new screen , KEYCARD failed, and reboots.
Anyway the LOCKED was enough to get the phone swapped as its two weeks old, any way after charging and attempting RUU again it locked on black HTC screen most times it booted.
Still maybe this menu holds a key to S-OFF, and maybe the relock failing can be replicated, it seems to have sent only 1 of 3 parts if the file across, so if you phone is bricked maybe you can give it a shot for htc service cover by part re-locking in some way.
http://dl.dropbox.com/u/7526938/IMAG0439.jpg
http://dl.dropbox.com/u/7526938/IMAG0384.jpg
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and was hoping we could make some headway on it.
I noticed you are on Vodafone Australia.
I spoke to multiple stores and service reps and each of them said the same thing, that merely unlocking the bootloader will not void your warranty with them assuming a hardware fault. They even allowing discussion of bootloader unlocking in their community forum.
They did say however that flashing custom roms and rooting will void your warranty as per usual and any damage caused as a result of overclocking or messing with voltages etc is not covered.
I don't know if that is any help, but they seem pretty good about it so long as you didnt cause any actual damage yourself
kylec said:
I noticed you are on Vodafone Australia.
I spoke to multiple stores and service reps and each of them said the same thing, that merely unlocking the bootloader will not void your warranty with them assuming a hardware fault. They even allowing discussion of bootloader unlocking in their community forum.
They did say however that flashing custom roms and rooting will void your warranty as per usual and any damage caused as a result of overclocking or messing with voltages etc is not covered.
I don't know if that is any help, but they seem pretty good about it so long as you didnt cause any actual damage yourself
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Unfortunately I bought it outright from All phones. Don't think they'll accept it. but never mind anymore, I sold my HTC one x. I put up a *phone has boot loader unlocked* note on the ad
Sent from my Samsung Galaxy S3

[Q] Question: Rooting and Bootloader

I recently came across this article here: http://www.redmondpie.com/unlock-nearly-all-htc-bootloaders-while-sparing-your-warranty/
Basically, I can lock and unlock my bootloader at will
Warranty is voided if you unlock the bootloader, which is required for rooting, unless there's a method to do otherwise.
Is my warranty still available if I unlock, root, then relock? Because the HTC service staff says that unlocking might cause damage, but as far as I know none will be caused. But should it do so, won't relocking it make it alright?
Also came across this: http://www.modaco.com/topic/353986-...t-unlocking-the-bootloader-windows-mac-linux/
Rooting without unlocking bootloader is impossible.
Your warranty will be void if the bootloader has been once unlocked. Relocking won't always make it better and it will display **relocked** instead of **locked**
It's not impossible though to get the phone fixed under warranty with unlocked state...
Sent from my IceCold One X
Perhaps where you are from, it is permitted. Here though, the technicians tend not to know too much about this kind of thing.
I've seen all sorts of reports. Some with unlocked bootloader have success with warranty repairs and some do not.
It all depends on where you send it back, who looks at it, what the actual fault is and the position of the moon.
I seem to recall on htcdev and the screen on the phone when unlocking say 'may' void your warranty.
Basically pot luck but not 100% no.
Sent from my HTC One X
Seeing as it's the same thread, I'd just like to ask if there is ANY damage caused at all by unlocking the bootloader. As far as I know it does not happen.

Bootloop and warranty explanation

Hi, I know there are a lot of discussions about this, but I read too much opinions. I want to understand the situation. Is a phone with unlocked bootloader out of warranty after bootloop? (Edit: yes, I found it on LG official site, sorry for the stupid question. Even if I will ask to LG Italia, my G2 passed warranty with root but the bootloader was not unlocked).
So the real question is: if I only root is there the possibility to get bootloop? Is the phone in warranty only with root?
I found this article on web: http://www.androidauthority.com/lg-admits-g4-bootloop-problem-hardware-fault-669603/
Is this the answers to our problems?
Thank you
Edit: I asked LG Italia. They said that smartphones bought before 1st April 2016 with root and/or unlocked bootloaders will be repaired in warranty if the problem is hardware and not software. If they can prove that the unlocked bootloader is the fault of the bootloop they will not repair the smartphone for free (I think this is crazy if LG is already accepted that bootloop is a hardware problem).
Instead smartphones bought later then 1st April 2016 with root and/or unlocked bootloader will be repaired out of warranty even if there is a hardware problem.
The bootloop problem is not caused by unlocking the bootloader, and it is not caused by rooting. Even if you don't root and you don't unlock the bootloader, you can still eventually end up with the bootloop issue. However, if the phone is bootloader unlocked, I've heard some people say that LG refused to repair the phone under warranty. Personally, I don't think this is fair of LG. They should repair the phone under warranty even if it is unlocked. Because the bootloop issue is a hardware problem with the phone, it shouldn't matter if the phone is unlocked/rooted. There is a design or engineering issue with the phone's motherboard so it should be repaired under warranty in all cases.

Question How can i unlock my phone's bootloader and root it and keep the warranty

Hi! i've bought a Realme GT Master Edition just recently and have these VERY IMPORTANT questions regarding my phone's warranty. the warranty comes from a third party company and lasts 18 months.
this phone is the best phone i could buy with my money, but the realme is not much known in my country, most stores don't have smartphones made by this company and repair shops don't have these phones' spare parts, and smartphones are ridiculously expensive here, so i can't easily ignore this warranty and am looking for a way to do my thing without being caught by the warranty provider.
the warranty provider says my warranty will void completely if my phone gets flashed by individuals other than them, let alone the rooting or unlocking the bootloader!
so i'm stuck on 2 big decisions:
1. Ignore the warranty and root my phone, but if something bad happens, then i will have to spend many years without a phone.
2. forget about rooting and get used to the ridiculous limits of Android 11/12.
but i need both of them, so i want to ask you is that even possible?
1. What traces will be left in my phone if i root it then unroot + relock it's bootloader and flash a stock rom?
2. how do they find out my phone is flashed by someone else?
3. is there any flash counter or anything in my phone that shows my phone was flashed or modified before?
4. if there is a way to do it without getting caught, can you tell me what things should i do?
5. if you know any way then did it work for you? (did you relock and unroot your phone and get the warranty service?)
if your answer contains technical details, please tell me, i will learn anything required to do those.
Thank you for reading!

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