If I unlock my bootloader, do I loose my warranty forever? - Xiaomi Redmi Note 3 Questions & Answers

So, if I unlock my bootloader and my phone gets bricked and needs service, will I be able to use my warranty? If not, is there a way I can make the phone look like it has not been modified in any way(ex: maybe lock the bootloader again or something like that) so that I can use my warranty?
Thanks in advance.

jimakos98 said:
So, if I unlock my bootloader and my phone gets bricked and needs service, will I be able to use my warranty? If not, is there a way I can make the phone look like it has not been modified in any way(ex: maybe lock the bootloader again or something like that) so that I can use my warranty?
Thanks in advance.
Click to expand...
Click to collapse
You can simply flash firmware via miflash. Everything will be like brand new, bootloader will get relocked.
Sent from Note 3, Xiaomi Redmi Note 3.

mr.loverlover said:
You can simply flash firmware via miflash. Everything will be like brand new, bootloader will get relocked.
Sent from Note 3, Xiaomi Redmi Note 3.
Click to expand...
Click to collapse
I see
Thanks

Yeah, it will get relocked.

Related

Bootloader

I've recently unlocked my bootloader and I wanted to re lock it. Well, I couldn't find any thread about this and I thought it would be good to open one. My question is obviously how to re lock the bootloader in Xiaomi Redmi Note 3 Snapdragon.
Xristomania said:
I've recently unlocked my bootloader and I wanted to re lock it. Well, I couldn't find any thread about this and I thought it would be good to open one. My question is obviously how to re lock the bootloader in Xiaomi Redmi Note 3 Snapdragon.
Click to expand...
Click to collapse
simply flash any official fastboot ROM using miflash.
sanjib734 said:
simply flash any official fastboot ROM using miflash.
Click to expand...
Click to collapse
With edl right?
sanjib734 said:
simply flash any official fastboot ROM using miflash.
Click to expand...
Click to collapse
Did it with the EDL and now i got hard brick. Now I am stuck at mi logo not even bootlooping and i can access fastboot mode but have no permision to do anything in there and cant flash from recovery. Any solution about this?
Xristomania said:
Did it with the EDL and now i got hard brick. Now I am stuck at mi logo not even bootlooping and i can access fastboot mode but have no permision to do anything in there and cant flash from recovery. Any solution about this?
Click to expand...
Click to collapse
Did you use unofficial bootloader unlock? If you did, you're really really f***ed right now. The only way to fix this is to physically open the device, unscrew the motherboard, plug in the usb and use a metal object to connect the two "testpoints", which will force the phone into edl mode.
justinxfan said:
Did you use unofficial bootloader unlock? If you did, you're really really f***ed right now. The only way to fix this is to physically open the device, unscrew the motherboard, plug in the usb and use a metal object to connect the two "testpoints", which will force the phone into edl mode.
Click to expand...
Click to collapse
I know about the testpoint but thank god i did wait for the unlock aproval.
Xristomania said:
I know about the testpoint but thank god i did wait for the unlock aproval.
Click to expand...
Click to collapse
In that case of official unlock, guess you can take to service center and get it repaired?
For unofficial unlock, there is simple way to lock bootloader by putting back original "emmc_appsboot.mbn" from fastboot rom.
fastboot flash aboot emmc_appsboot.mbn
fastboot flash abootbak emmc_appsboot.mbn
Xristomania said:
I know about the testpoint but thank god i did wait for the unlock aproval.
Click to expand...
Click to collapse
You used official unlocked and the phone still bricked?
mGforCe said:
In that case of official unlock, guess you can take to service center and get it repaired?
For unofficial unlock, there is simple way to lock bootloader by putting back original "emmc_appsboot.mbn" from fastboot rom.
fastboot flash aboot emmc_appsboot.mbn
fastboot flash abootbak emmc_appsboot.mbn
Click to expand...
Click to collapse
Greece doesn't have a service center for xiaomi phones. Yeap, this sucks.
justinxfan said:
You used official unlocked and the phone still bricked?
Click to expand...
Click to collapse
Yep, still bricked. Hard Bricked. I have used tespoint again but it was actually hard to trigger it because it caused phone to restart normally instead of going to edl.
When I tried to EDL Flash my phone normally when i had access to android, I got and max memory something problem in Mi Flash and when i tried again it sent a hello package to my phone and then it said catastrophic failure. So, don't know what that actually means and I hope not what it actually says. However i still have access to fastboot mode and recovery mode but i found out that I actually have locked bootloader after flashing this "emmc_appsboot.mbn" and had the phone alive in chinese dev rom and then i wanted to roll back to global stable via edl and got brick. Sadly I do not have access to this test mode where you test your phone's sensors, display and more.
Xristomania said:
When I tried to EDL Flash my phone normally when i had access to android, I got and max memory something problem in Mi Flash and when i tried again it sent a hello package to my phone and then it said catastrophic failure. So, don't know what that actually means and I hope not what it actually says. However i still have access to fastboot mode and recovery mode but i found out that I actually have locked bootloader after flashing this "emmc_appsboot.mbn" and had the phone alive in chinese dev rom and then i wanted to roll back to global stable via edl and got brick. Sadly I do not have access to this test mode where you test your phone's sensors, display and more.
Click to expand...
Click to collapse
Hey, you can go into EDL mode?
If yes, why don't you flash the Fastboot ROM - Global one if you don't want CHinese one
Refer this post for basic steps.
http://forum.xda-developers.com/showpost.php?p=66962198&postcount=7
mGforCe said:
Hey, you can go into EDL mode?
If yes, why don't you flash the Fastboot ROM - Global one if you don't want CHinese one
Refer this post for basic steps.
http://forum.xda-developers.com/showpost.php?p=66962198&postcount=7
Click to expand...
Click to collapse
I might can with the testpoint method. Although I can not boot into android.
Xristomania said:
I might can with the testpoint method. Although I can not boot into android.
Click to expand...
Click to collapse
Suggest trying @Rajdip's thread here
http://forum.xda-developers.com/redmi-note-3/how-to/unbricking-redmi-note3-hardbrickhs-usb-t3351325
EDL
mGforCe said:
Suggest trying @Rajdip's thread here
http://forum.xda-developers.com/redmi-note-3/how-to/unbricking-redmi-note3-hardbrickhs-usb-t3351325
Click to expand...
Click to collapse
Just got into edl mode with testpoint and flashed successfully global firm. I'll charge it fully and the find out if it actually works.
Xristomania said:
Just got into edl mode with testpoint and flashed successfully global firm. I'll charge it fully and the find out if it actually works.
Click to expand...
Click to collapse
Great! Happy to note that your phone is back.. If flash has been successful then it will work.
testpoint is risky and requires expertise right?
mGforCe said:
Great! Happy to note that your phone is back.. If flash has been successful then it will work.
testpoint is risky and requires expertise right?
Click to expand...
Click to collapse
Actually it is not that difficult but it is extremely tricky since if you press only the left one test point it will just reboot. You need to touch them at the same time. Although you'll need to be accommodated with electronics since they are sensitive.
mGforCe said:
Great! Happy to note that your phone is back.. If flash has been successful then it will work.
testpoint is risky and requires expertise right?
Click to expand...
Click to collapse
Weirdly enough, it shows battery sign when charging but button do not seem to respond for a weird reason. I'll check cables.
Oh god yes
Xristomania said:
Weirdly enough, it shows battery sign when charging but button do not seem to respond for a weird reason. I'll check cables.
Click to expand...
Click to collapse
I had a little heart attack because I thought That i had cut the Button Cable during the flash process but THANK GOD it was right underneath the motherboard and IT NOW WORKS. YES I AM IN MIUI GLOBAL. THANK GOD. Just for you to know, every failed bootloader unlock on any smartphone is equal to several heart attacks.

How to relock bootloader?

I impulsively unlocked the boot-loader on my Mate 20 Pro last night because Funky Huawei was selling the codes for $20. Today I can't really think of a good reason I actually need the bootloader unlocked since I have no interest in rooting my phone and there are update methods for manually flashing firmware that don't require an unlocked bootloader. In fact, the tool posted on XDA for updating firmware with an unlocked bootloader apparently requires that you be rooted to use it.
Is there a way to relock the bootloader?
The only mention I could find in these threads was someone who said you need to factory reset the phone and then go back into fast-boot. I don't think the person who wrote that even tried it and that he was just making a generalization.
Does anyone know if there are actual steps that relock the bootloader without bricking the phone--which the e-recovery restore method might do since it will try to install an older firmware than is currently on my phone.
I might just keep it unlocked anyway but I was curious if there was a known relock method that works on this phone.
jhs39 said:
I impulsively unlocked the boot-loader on my Mate 20 Pro last night because Funky Huawei was selling the codes for $20. Today I can't really think of a good reason I actually need the bootloader unlocked since I have no interest in rooting my phone and there are update methods for manually flashing firmware that don't require an unlocked bootloader. In fact, the tool posted on XDA for updating firmware with an unlocked bootloader apparently requires that you be rooted to use it.
Is there a way to relock the bootloader?
The only mention I could find in these threads was someone who said you need to factory reset the phone and then go back into fast-boot. I don't think the person who wrote that even tried it and that he was just making a generalization.
Does anyone know if there are actual steps that relock the bootloader without bricking the phone--which the e-recovery restore method might do since it will try to install an older firmware than is currently on my phone.
I might just keep it unlocked anyway but I was curious if there was a known relock method that works on this phone.
Click to expand...
Click to collapse
Have a look at my post in thread below .. have done this method a few times and works for me.
https://forum.xda-developers.com/ma...ocking-bootloader-magisk-root-t3885422/page22
jhs39 said:
I impulsively unlocked the boot-loader on my Mate 20 Pro last night because Funky Huawei was selling the codes for $20. Today I can't really think of a good reason I actually need the bootloader unlocked since I have no interest in rooting my phone and there are update methods for manually flashing firmware that don't require an unlocked bootloader. In fact, the tool posted on XDA for updating firmware with an unlocked bootloader apparently requires that you be rooted to use it.
Is there a way to relock the bootloader?
The only mention I could find in these threads was someone who said you need to factory reset the phone and then go back into fast-boot. I don't think the person who wrote that even tried it and that he was just making a generalization.
Does anyone know if there are actual steps that relock the bootloader without bricking the phone--which the e-recovery restore method might do since it will try to install an older firmware than is currently on my phone.
I might just keep it unlocked anyway but I was curious if there was a known relock method that works on this phone.
Click to expand...
Click to collapse
Use dload method, but pba that will erase everything like your 1st setting of your phone. Phone will be locked again, FRP will still unlocked.
Sent from my LYA-L29 using Tapatalk
does dload method altso come with recovery_ramdisk fixed? for us that have modified it for root or twrp??
So that the device becomes out of the box like new?
Yes, recovery_ramdisk back to stock with dload method
Sent from my LYA-L29 using Tapatalk
i can confirm dload method lock back the bootloader.
i had install an alternate fw but was not satisfied cause too much features were not working, i used first erecovery to download official fw but unlock bl was still present. then i try dload and phone was completly reset with bl locked.
dload method isn't working for me. I extracted the UPDATE.APP from the firmware version that is currently installed on my phone (using the update_full_base version), created a dload folder on my external card, copied the UPDATE.APP into that folder and then did the dial code and selected update from memory card. My phone reboots and then I get an error that says that the update failed.
Do I need to use the UPDATE.APP from a specific build to get this to work?
I installed firmware via the Funky Huawei method. It seems to have relocked the bootloader because the warning about the bootloader being unlocked doesn't come up when the phone boots but the data on my phone wasn't erased. Can the bootloader be relocked without erasing all the data on the phone? If so this is the first I've heard of it.
jhs39 said:
I installed firmware via the Funky Huawei method. It seems to have relocked the bootloader because the warning about the bootloader being unlocked doesn't come up when the phone boots but the data on my phone wasn't erased. Can the bootloader be relocked without erasing all the data on the phone? If so this is the first I've heard of it.
Click to expand...
Click to collapse
Go to fastboot mode and check if bootloader is locked again.
Sent from my LYA-L29 using Tapatalk
ubersapian said:
Have a look at my post in thread below .. have done this method a few times and works for me.
https://forum.xda-developers.com/ma...ocking-bootloader-magisk-root-t3885422/page22
Click to expand...
Click to collapse
Will we able to reclaim warranty after relock? Anyway the service guys would be able to know that the bootloader was unlocked before?
Soo what is the legit way to relock the bootloader and the FRP?
is the FRP from stock/defualt locked?
Verstuurd vanaf mijn LYA-L29 met Tapatalk

Curtana - Fastboot miui 12

Hello.
I downloaded Fastboot images of miui 12 for my remi note 9s but, cannot flash the images because the first error is something like "lock state" when Fastboot tried yo erase boot.
My device is almost 2 months in my hands and cannot unlock bootloader because I will loose warranty.
Search Google but there's a lot of similar problems with other models too.
Impoetant, my device ia updated to miui 12 stable but downloaded 720mb and the Fastboot images are almost 6 gb
Thanks.
Hakkinen3K said:
Hello.
I downloaded Fastboot images of miui 12 for my remi note 9s but, cannot flash the images because the first error is something like "lock state" when Fastboot tried yo erase boot.
My device is almost 2 months in my hands and cannot unlock bootloader because I will loose warranty.
Search Google but there's a lot of similar problems with other models too.
Impoetant, my device ia updated to miui 12 stable but downloaded 720mb and the Fastboot images are almost 6 gb
Thanks.
Click to expand...
Click to collapse
You have to unlock your bootloader before flashing anything iirc, even if it's the Xiaomi approved, signed, original factory firmware. You can re-lock the bootloader afterwards and everything should be the same. I don't think Xiaomi phones have a "digital fuse" or something that permanently marks a phone as having been unlocked once (or that service centers care), but don't quote me on that.
Limezero said:
You have to unlock your bootloader before flashing anything iirc, even if it's the Xiaomi approved, signed, original factory firmware. You can re-lock the bootloader afterwards and everything should be the same. I don't think Xiaomi phones have a "digital fuse" or something that permanently marks a phone as having been unlocked once (or that service centers care), but don't quote me on that.
Click to expand...
Click to collapse
Thanks for answer. I think I'm gonna stick with the update installed, don't want to unlock yet. Besides, is working fine at the moment.
?
Sent from my Redmi Note 9S using XDA Labs
Hakkinen3K said:
Thanks for answer. I think I'm gonna stick with the update installed, don't want to unlock yet. Besides, is working fine at the moment.
?
Click to expand...
Click to collapse
The unlock process is made by xiaomi so you dont loose warranty

How to relock bootloader & what are the essentials I need to do before relocking?

Some saying that relocking the bootloader while in custom recovery state will cause bootloop. What's the exact procedure should I need to follow to have a relocked bootloader for RN9P? I heard that I should flash stock firmware from MiFlashTool using "Flash all and lock" option. Does it work or did it worked for anyone?
MPK99 said:
Some saying that relocking the bootloader while in custom recovery state will cause bootloop. What's the exact procedure should I need to follow to have a relocked bootloader for RN9P? I heard that I should flash stock firmware from MiFlashTool using "Flash all and lock" option. Does it work or did it worked for anyone?
Click to expand...
Click to collapse
Honestly speaking I never wished to relock bootloader and If I had to, I'd certainly go with the MiFlashTool method.
Hm
Azamsm said:
Honestly speaking I never wished to relock bootloader and If I had to, I'd certainly go with the MiFlashTool method.
Click to expand...
Click to collapse
Hmm, ok. I jusk asked, because I'm exchanging this with Redmi Note 10 Pro. Caz, offcourse I should sell it with locked bootloader only. Or else it'll void the warranty.
MPK99 said:
Hmm, ok. I jusk asked, because I'm exchanging this with Redmi Note 10 Pro. Caz, offcourse I should sell it with locked bootloader only. Or else it'll void the warranty.
Click to expand...
Click to collapse
It actually doesn't void warranty. Unlocking bootloader for xiaomi devices is safe.

Question OEM unlocking 🔓

Hi there, I want to root my pixel , but I can't. (Screenshot) I buy phone with Verizon contract , but now it's contract free. If someone can help me. (I'm from Ukraine,we don't have Verizon)
For Verizon phones, regardless whether contract free or not, it is impossible to unlock the bootloader.
Cheers
tom1807 said:
For Verizon phones, regardless whether contract free or not, it is impossible to unlock the bootloader.
Cheers
Click to expand...
Click to collapse
And how to flash android via PC or root it ? Impossible?
nick.arabadji said:
And how to flash android via PC or root it ? Impossible?
Click to expand...
Click to collapse
Root impossible with locked bootloader.
Flashing? Here you go.
Cheers
tom1807 said:
Root impossible with locked bootloader.
Flashing? Here you go.
Cheers
Click to expand...
Click to collapse
I can't ... I try , but android flash tool need to unlock bootloader...
nick.arabadji said:
Hi there, I want to root my pixel , but I can't. (Screenshot) I buy phone with Verizon contract , but now it's contract free. If someone can help me. (I'm from Ukraine,we don't have Verizon)
Click to expand...
Click to collapse
You're screwed. Verizon will NEVER unlock the bootloader, and you can't either. This means you CANNOT flash factory images. You CANNOT root the device. You CAN manually flash OTA images through the device recovery with fastboot, however as the device is still supported for the next four years, that ability is nearly pointless.
You should have purchased a Japanese Pixel 6. If I recall correctly, it's the same hardware as the Verizon Pixel 6 but with an unlockable bootloader. Now it's too late for that, so simply enjoy what you have because honestly you're not missing much.
Strephon Alkhalikoi said:
You're screwed. Verizon will NEVER unlock the bootloader, and you can't either. This means you CANNOT flash factory images. You CANNOT root the device. You CAN manually flash OTA images through the device recovery with fastboot, however as the device is still supported for the next four years, that ability is nearly pointless.
You should have purchased a Japanese Pixel 6. If I recall correctly, it's the same hardware as the Verizon Pixel 6 but with an unlockable bootloader. Now it's too late for that, so simply enjoy what you have because honestly you're not missing much.
Click to expand...
Click to collapse
Thanks for reply ! I just need to reflash for delete some bugs ..
nick.arabadji said:
Thanks for reply ! I just need to reflash for delete some bugs ..
Click to expand...
Click to collapse
Perform a factory reset instead. Since you cannot flash things that's the way you eliminate bugs on your device.

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