After flashing official firmware and recovery - Huawei P20 Lite Questions & Answers

Hi all,
Is it possible to get the initial state of "locked" of bootloader after flashing a custom recovery and getting back to our official firmware? Cause on mine i can only get "relock" state .
This is only important cause of OTA updates and warranty so yeah, i would like my warranty back please :/
I always did that on previous phones to get the phone as it were out of the box and get a warranty state again but on this one it's hard :/, I will only use DC Unlocker as last resort. (Cause paying for it? Please...)
Thanks!
AS

Related

what kind of Unlocking Bootloader did you use??!??

as the title, did you use the OFFICIAL METHOD, or theTEST POINT ONE??!??
maybe... why?!? and what do you think about the quest of warranty back?
PeppeBove said:
as the title, did you use the OFFICIAL METHOD, or theTEST POINT ONE??!??
maybe... why?!? and what do you think about the quest of warranty back?
Click to expand...
Click to collapse
well test point method is better because by following this method you will never lose drm keys and in official method you will lose these keys and you will never get it back. and your warrenty will be avoided in official method even if you relock the bootloader.
Official method.
Phone went to warranty, relocked bootloader, flashed stock firmware, had no problems. Touchscreen was replaced due to installing wrong ROM.

[Q] Relocking bootloader? Or at least fooling AT&T

So I discovered a slight gap on certain edges of my One, which I got a week ago, and want to return it to AT&T for one that hopefully has no issues, but I've rooted, unlocked the bootloader, and flashed CM 10.1 on there. I searched through google and the forums here on XDA to find a method to relock the bootloader and go back to stock, but my search was fruitless. Apparently something called an RUU was needed? And according to the last post in this thread, that isn't available.
Is the RUU available now? Or is it currently impossible to relock the bootloader?
If so, would I be able to pull off just flashing the stock ROM back onto the phone and bringing it into AT&T? I feel like the only way they would realize something was different with the phone would be if they rebooted it, as I highly doubt most of the people in that store could even get into the bootloader screen. They had trouble syncing my google account.
Unless, of course, they send it back to the manufacturer and then THEY say that the warranty is voided because of the unlocked bootloader... but I don't know if they go through all that trouble in this situation?
Thanks for the help.
CAC1291 said:
So I discovered a slight gap on certain edges of my One, which I got a week ago, and want to return it to AT&T for one that hopefully has no issues, but I've rooted, unlocked the bootloader, and flashed CM 10.1 on there. I searched through google and the forums here on XDA to find a method to relock the bootloader and go back to stock, but my search was fruitless. Apparently something called an RUU was needed? And according to the last post in this thread, that isn't available.
Is the RUU available now? Or is it currently impossible to relock the bootloader?
If so, would I be able to pull off just flashing the stock ROM back onto the phone and bringing it into AT&T? I feel like the only way they would realize something was different with the phone would be if they rebooted it, as I highly doubt most of the people in that store could even get into the bootloader screen. They had trouble syncing my google account.
Unless, of course, they send it back to the manufacturer and then THEY say that the warranty is voided because of the unlocked bootloader... but I don't know if they go through all that trouble in this situation?
Thanks for the help.
Click to expand...
Click to collapse
For a quick and easy way, just boot into fast boot and cmd "fastboot oem lock"
The only problem with that is that if they DO boot into the bootlaoder, it will say "RELOCKED" instead of "LOCKED"
The longer way, is to S-OFF (find it in the international forum) and then follow instructions there to put the "LOCKED" text back.
CAC1291 said:
So I discovered a slight gap on certain edges of my One, which I got a week ago, and want to return it to AT&T for one that hopefully has no issues, but I've rooted, unlocked the bootloader, and flashed CM 10.1 on there. I searched through google and the forums here on XDA to find a method to relock the bootloader and go back to stock, but my search was fruitless. Apparently something called an RUU was needed? And according to the last post in this thread, that isn't available.
Is the RUU available now? Or is it currently impossible to relock the bootloader?
If so, would I be able to pull off just flashing the stock ROM back onto the phone and bringing it into AT&T? I feel like the only way they would realize something was different with the phone would be if they rebooted it, as I highly doubt most of the people in that store could even get into the bootloader screen. They had trouble syncing my google account.
Unless, of course, they send it back to the manufacturer and then THEY say that the warranty is voided because of the unlocked bootloader... but I don't know if they go through all that trouble in this situation?
Thanks for the help.
Click to expand...
Click to collapse
Get S-OFF, I was able to remove TAMPERED and change my UNLOCKED to LOCKED. You can also flash a modded HBoot that will take the red letters away and change the text from S-OFF to S-ON this will allow it to look like you never touched a thing
To get S-OFF I recommend http://forum.xda-developers.com/showthread.php?t=2314582
To mod your HBoot go through the post from here http://forum.xda-developers.com/showthread.php?t=2316726 (to download the HBOOT and here http://forum.xda-developers.com/showthread.php?t=1786498 to download the tool to create the modified HBOOT
But to let you know, I have returned 2 HTC Ones with unlocked bootloaders and AT&T did not say anything. Just flash the stock rom, make sure fastboot in enabled and leave it booted to the set up screen. Above is for if you want to be thorough and make sure you cover all your bases.

[Q] AT&T HTC One M8: How to flash back to stock

I recently unlocked my bootloader and rooted my phone. I installed TWRP and flashed a couple of custom roms ( GPE & Revolution HD ) I decided i want to go back to stock. I understand so far i gotta unroot, flash stock rom and re lock bootloader. I read something about RUU files. Any one have suggestion or help how i go about this? Again, i have AT&T varient, currently on Revolution HD Rom
Famous22 said:
I recently unlocked my bootloader and rooted my phone. I installed TWRP and flashed a couple of custom roms ( GPE & Revolution HD ) I decided i want to go back to stock. I understand so far i gotta unroot, flash stock rom and re lock bootloader. I read something about RUU files. Any one have suggestion or help how i go about this? Again, i have AT&T varient, currently on Revolution HD Rom
Click to expand...
Click to collapse
There is currently no RUU available as of right now. I think the best you can do for now is to a TWRP restore. There is a stock rooted TWRP in the Android Dev forum. Although this won't un-root you, its closest to stock that you will get. For the future, always make a backup before you root and then you won't have to worry
TheEmpyre said:
There is currently no RUU available as of right now. I think the best you can do for now is to a TWRP restore. There is a stock rooted TWRP in the Android Dev forum. Although this won't un-root you, its closest to stock that you will get. For the future, always make a backup before you root and then you won't have to worry
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Click to collapse
I just ordered my device and still waiting on it to be delivered. I'm already debating on whether or not to root as I've never owned an android phone that i didn't root. From what i understand, the bootloader needs to be unlocked, then s-off, flash recovery and then root. Now, if i'm to do a nandroid of the stock ROM before I root, will I be able to lock the bootloader again, nandroid and s-on in case I need to utilize the warranty? Also, will any warranty bits show up or a tampered flag or any other problem arise that'll indicate it's been farked with? Is there a way to undo those flags? Thanks in advance to TheEmpyre or whomever else can shed some light on this.
EDIT: If the s-off is the only step that will trip the flag, is it possible to leave S, er, ON?
brianray14 said:
I just ordered my device and still waiting on it to be delivered. I'm already debating on whether or not to root as I've never owned an android phone that i didn't root. From what i understand, the bootloader needs to be unlocked, then s-off, flash recovery and then root. Now, if i'm to do a nandroid of the stock ROM before I root, will I be able to lock the bootloader again, nandroid and s-on in case I need to utilize the warranty? Also, will any warranty bits show up or a tampered flag or any other problem arise that'll indicate it's been farked with? Is there a way to undo those flags? Thanks in advance to TheEmpyre or whomever else can shed some light on this.
EDIT: If the s-off is the only step that will trip the flag, is it possible to leave S, er, ON?
Click to expand...
Click to collapse
Unlocking the bootloader trips a flag. When you relock it gets rid of one flag but trips the relocked flag. Soff can get rid of all flags but you have to leave it soff. Turning it back on throws a security flag.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
If you are current AT&T customer, and can go through them for warranty, they do not care in the least whether you are bootloader unlocked, rooted, s-off, etc.
I know AT&T written policy says otherwise (they have the right refuse warranty on modded phones) but in reality they cherish you paying that nice monthly bill every month over the modest cost of a refurb phone.
I've come over from the One X (EVITA) forum, and there were many (possibly dozens) of report from XDA users successfully returning their devices for warranty with bootloader RELOCKED, UNLOCKED, and in some cases even with custom ROMs installed! And I haven't seen any reports otherwise (AT&T denying warranty due to modded phone).
If you are not a current AT&T customer, and have to go through HTC, that is a different story.
But if you are an AT&T customer, my personal opinion is that you do not need to care about being able to return to stock, tripping flags, etc. Just mod away.
redpoint73 said:
If you are current AT&T customer, and can go through them for warranty, they do not care in the least whether you are bootloader unlocked, rooted, s-off, etc.
I know AT&T written policy says otherwise (they have the right refuse warranty on modded phones) but in reality they cherish you paying that nice monthly bill every month over the modest cost of a refurb phone.
I've come over from the One X (EVITA) forum, and there were many (possibly dozens) of report from XDA users successfully returning their devices for warranty with bootloader RELOCKED, UNLOCKED, and in some cases even with custom ROMs installed! And I haven't seen any reports otherwise (AT&T denying warranty due to modded phone).
If you are not a current AT&T customer, and have to go through HTC, that is a different story.
But if you are an AT&T customer, my personal opinion is that you do not need to care about being able to return to stock, tripping flags, etc. Just mod away.
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Click to collapse
I can second this. I just had to replace my m8 because the speakers were crackling like crazy, my bootloader showed relocked and they told me straight up that they didn't care about that as long as it was a hardware problem and not a software problem and replaced it on the spot.
I was under the impression that if you were in your first year of owning the device that faulty hardware would be covered under HTC's factory warranty and not AT&T?
brianray14 said:
I was under the impression that if you were in your first year of owning the device that faulty hardware would be covered under HTC's factory warranty and not AT&T?
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Click to collapse
Looking at the return info, I can see where the confusion might come from. It says "Return directly to manufacturer" for 15 days or more:
http://www.att.com/shop/wireless/returnpolicy.html#fbid=KMGdewZyG_f
But AFAIK, all warranty returns go to AT&T when you work through their warranty department. You send them your defective phone, and they send you a refurb. I haven't had to go through this process myself, but this is what has been reported many times on XDA and other forums.
Any update on this how to lock bootloader for HTC M8 AT&T with 4.4.3 InsertCoin 4.1.1 Rom S-On of course.
How do I lock the bootloader in order to upgrade to stock 4.4.4?
im2c0ol said:
Any update on this how to lock bootloader for HTC M8 AT&T with 4.4.3 InsertCoin 4.1.1 Rom S-On of course.
How do I lock the bootloader in order to upgrade to stock 4.4.4?
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Click to collapse
No "update" on this issue is required. The process has been the same for a couple years or more. Further, you've posted the same/similar question to multiple places, and its been answered already in multiple places.
Connect phone to computer in fastboot mode.
Open command prompt, and type: fastboot OEM lock
From there, you can run the RUU.

[Q] Stuck in Bootloader

Hello all, I know this is an old phone so not many people care for it anymore, but I was trying to get mine back to stock so I can use it while the phone I am using now is out for repairs. I am having issues getting it back to stock though and these issues resulted in my phone becoming stuck in bootloader. I have relocked my phone and tried both flashing a PG86IMG.ZIP from bootloader and from fastboot, both of them fail. Is there maybe a step I am missing? Or possibly have I completely bricked my phone? Could it be that I need a more updated RUU? (they have been kinda hard to find, it seems that a lot of the mirrors have been taken down.)
Thank you in advance for your help.
Is there a fail message? Do you remember what version rom you had?
Can't remember what version rom I had. It has been a while since I have done anything with it.
You locked with custom rom, recovery, or kernel. Looks like stock was v2.95 or v2.89 problem is they never released a full PG86img.zip for 2.95
I've an update which might fix it or possible 2.89 zip might work. Will upload them when I can. But if you can unlock, then it might be possible to edit misc partition to allow you to install an older rom

if i unlock the bootloader am i gonna loose my warranty?

Hello,
About a few days ago I just upgraded from Nexus 5x to xiaomi redmi 5 plus
and I missed the google camera with portrait mode.
if I unlock the bootloader and instal twrp to just to add this line"persist.camera.HAL3.enabled=1"
and flash stock recovery and lock it again so I can get updates I am gonna lose my warranty?
sorry for this silly question but India chat support says that unlocking bootloader will not void warannty but if you install custom rom then it will void the warranty ...and some other people (and sites says unlocking the bootloader will void the warranty)
sorry for my bad English
When you open the MiUnlock app (the Windows executable that unlocks the phone after the 15 days wait after binding the MI Account to your device and after receiving the confirmation SMS for your MI account), a Disclaimer appears where it says among other stuff, that you'll have a less secure device and that some MIUI freatures like Find my device or OTAs won't work anymore. But at any moment anything is said about voiding warranty. Some carriers in my country (Mexico) sell the phone with the bootloader already unlocked (because they disable the SIM2 slot) but they still provide warranty service (crappy, but it's there).
Unfortunately, some other sellers won't provide any kind of warranty if the bootloader is unlocked, because they don't know anymore if you ran a custom ROM with faulty drivers that caused a hardware failure. So at the end the warranty service depends on where you bought the phone.
as a sidenote, be VERY careful when re-locking the bootloader. If you lock the bootloader and it has TWRP or a custom rom installed, you'll have a cute softbrick.
what about gearbest?
and is there any way to unlock it and to edit the build prop still receive updates?
sorry for those question its the verst time I own xiaomi ( i was using Motorola and Samsung devices only)
dimitrispas22 said:
what about gearbest?
and is there any way to unlock it and to edit the build prop still receive updates?
sorry for those question its the verst time I own xiaomi ( i was using Motorola and Samsung devices only)
Click to expand...
Click to collapse
If you bought it from gearbest you don't have warranty at all. Just unlock the bootloader and keep it unlocked, there's no point in re-locking it.
You still get updates and everything else after unlocking the bootloader, but you must un-root and install the stock recovery before installing the update, otherwise MIUI will say that the install failed.
After the update, you can re-root and reinstall TWRP.
thank you very much
you solve all my questions!

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