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I recently got a new motherboard installed to my Nexus 5X by LG due to the recent bootloop related to TWRP and Android N. My problem is that after unlocking bootloader, and doing the mandatory device wipe that comes with it, the bootloader gets reverted to locked state when I restart my device. I've tried multiple cables, USB ports, fastboot binaries, but nothing seems to make the device behave any differently. I am able to flash things in fastboot mode after unlocking the device as long as I don't restart the device. TWRP installs just fine, but obviously throws a bunch of errors because I cannot enter recovery mode without restaring (which gets the bootloader locked again). Is there any tricks I could try, or is it my NAND that is acting up as it seems to revert to previous state on power loss? As far as I can tell, the rest of the memory chip is working just fine, /sdcard does not lose any data when restarting etc. I was able to install Nougat on the device by flashing factory images.
I have not bought my device from Google and thus it is covered only by LG's limited warranty, which probably means that this is something they will not repair as unlocking the bootloader probably voids their warranty in any case. Am I just out of luck?
neree said:
I recently got a new motherboard installed to my Nexus 5X by LG due to the recent bootloop related to TWRP and Android N. My problem is that after unlocking bootloader, and doing the mandatory device wipe that comes with it, the bootloader gets reverted to locked state when I restart my device. I've tried multiple cables, USB ports, fastboot binaries, but nothing seems to make the device behave any differently. I am able to flash things in fastboot mode after unlocking the device as long as I don't restart the device. TWRP installs just fine, but obviously throws a bunch of errors because I cannot enter recovery mode without restaring (which gets the bootloader locked again). Is there any tricks I could try, or is it my NAND that is acting up as it seems to revert to previous state on power loss? As far as I can tell, the rest of the memory chip is working just fine, /sdcard does not lose any data when restarting etc. I was able to install Nougat on the device by flashing factory images.
I have not bought my device from Google and thus it is covered only by LG's limited warranty, which probably means that this is something they will not repair as unlocking the bootloader probably voids their warranty in any case. Am I just out of luck?
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Click to collapse
What TWRP errors are you getting? TWRP shouldn't care if your device is locked or not. It doesn't do its operations through the bootloader.
Also just as a sanity check, you enabled OEM unlocking under developer options and you did fastboot oem unlock (or equivalent) on the phone right?
sfhub said:
What TWRP errors are you getting? TWRP shouldn't care if your device is locked or not. It doesn't do its operations through the bootloader.
Also just as a sanity check, you enabled OEM unlocking under developer options and you did fastboot oem unlock (or equivalent) on the phone right?
Click to expand...
Click to collapse
For the TWRP errors I'll have to get back on when I get back home to my device. For the other part, yes I did enable the unlocking under dev options, and used fastboot flashing unlock (also tried fastboot oem unlock). They both do go through and wipe my device. The bootloader also stats that current state is unlocked after the wipe. However after restaring the device back to bootloader causes the state change back to locked.
Did you install the motherboard or did LG?
I think something didn't install correctly on your phone. There is probably somewhere on the phone where they store the persistent unlocked state of the bootloader and that isn't working.
If you are bold, you can try using LGUP and the TOT file to reinstall you phone (this is a more in-depth reinstall than just factory images)
However there is always the risk you make things worse on your phone than they currently are.
If you have 16GB then you need to install the Android N OTA afterwards to get the partition tables set correctly.
sfhub said:
Did you install the motherboard or did LG?
I think something didn't install correctly on your phone. There is probably somewhere on the phone where they store the persistent unlocked state of the bootloader and that isn't working.
If you are bold, you can try using LGUP and the TOT file to reinstall you phone (this is a more in-depth reinstall than just factory images)
However there is always the risk you make things worse on your phone than they currently are.
If you have 16GB then you need to install the Android N OTA afterwards to get the partition tables set correctly.
Click to expand...
Click to collapse
LG (or whatever company it is that does it for them here) installed the new board. I think I'll pass on doing the deeper installations for now as I'm currently trying to sell the device off to someone who wouldn't have any use to unlocked bootloader. Was just wondering if I completely missed something that might cause the device to do this so I could either use it again by myself or sell it as fully functioning Nexus device.
neree said:
I think I'll pass on doing the deeper installations for now as I'm currently trying to sell the device off to someone who wouldn't have any use to unlocked bootloader.
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Click to collapse
That's a good call. Actually I wouldn't mess around too much with the phone if you are going to sell it.
Just make sure you remove any pin/pattern/password from the phone and to be extra safe, remove your google account from the phone *PRIOR* to factory reset or you will run into Factory Reset Protection (FRP) where you will have to give the buyer your google account and password so they can do first install and switch to their own account.
Let's tell my experience.
I had my Moto G6 Play for near two months. I've unlocked the Bootloader and attempted to root it but unsuccessful. So, I've rolled back to my stock rom via Fastboot (using the stock ROM linked in this forum). It worked fine after that.
Some days ago, the official Android Pie update has been available, so, I installed it via OTA. However, it failed. After trying installing again, the phone gone down and never powered on again (even entering the Recovery mode, even charging all the night).
Therefore, I left the device to the technical service, knowing the bootloader unlock voids the warranty.
Does this happened to someone else? In what scenarios?
Thanks for commenting.
Amitie10g said:
Let's tell my experience.
I had my Moto G6 Play for near two months. I've unlocked the Bootloader and attempted to root it but unsuccessful. So, I've rolled back to my stock rom via Fastboot (using the stock ROM linked in this forum). It worked fine after that.
Some days ago, the official Android Pie update has been available, so, I installed it via OTA. However, it failed. After trying installing again, the phone gone down and never powered on again (even entering the Recovery mode, even charging all the night).
Therefore, I left the device to the technical service, knowing the bootloader unlock voids the warranty.
Does this happened to someone else? In what scenarios?
Thanks for commenting.
Click to expand...
Click to collapse
1. Unlocking your bootloader does not void your warranty.
2. That's a recovery loop. It doesn't look like it, but it is.
3. How to fix that crap. -Flash stock firmware, wipe data, cache, and DDR through fastboot, then issue the command fastboot reboot. Let it encrypt, then you can boot into recovery normally. If you don't let it encrypt right after flashing stock firmware then you'll loop again.
Spaceminer said:
1. Unlocking your bootloader does not void your warranty.
2. That's a recovery loop. It doesn't look like it, but it is.
3. How to fix that crap. -Flash stock firmware, wipe data, cache, and DDR through fastboot, then issue the command fastboot reboot. Let it encrypt, then you can boot into recovery normally. If you don't let it encrypt right after flashing stock firmware then you'll loop again.
Click to expand...
Click to collapse
1.- Maybe, depending the country. So, the agent who attended me told me the warranty is void just when unlocking the Bootloader. Motorola's technical service will give the last word about that, as I have re-installed the stock rom.
2.- As I told, the phone don't seems to power on and no charging light. I've connected to the computer and it never identifies as anything than a brick.
3.- Per above, Fastboot won't recognize the device and unable to send commands to the device in any way. In other words, the device seems to be completely dead.
The vendor where I purchased the device just told me they will replace the device under the warranty.
So, I'll apply the updates via OTA and tell you the results, but I'll not unlock the bootloader, but backup upload the ROM via Fastboot and TWRP, and upload it.
I've finally gone to the vendor to retire the replacement device.
However, they don't have the Moto G6 Play available anymore. Instead, they gave me the Moto G6 (better device except for the battery) for free, as the failure has been covered under the warranty.
Advices:
Ask your vendor the repair costs for failures caused by failed firmware updates. I assume Motorola didn't checked even if the bootloader is unlocked (as the device seems to be completely dead), they just decided to replace the device.
Don't send the device to the technical service if it powers on and Fastboot is working unless you're prepared to pay the repairs.
Don't try to install the Android Pie update with the bootloader unlocked and firmware altered.
acutally, updating with unlocked bootloader causes nothing. that might have been a hardware problem of some source, idk...
---------- Post added at 09:45 PM ---------- Previous post was at 09:44 PM ----------
but unlocking the bootloader does void your warranty tho
Indeed the warranty is void after unlocking the bootloader, but Motorola haven't noticed (and even checked it) as the device completely died.
¿So, where is actually stored the Bootloader? In the Flash or a separated ROM chip. As a previous flashing attempt may caused failed write to key partitions.
Amitie10g said:
Indeed the warranty is void after unlocking the bootloader, but Motorola haven't noticed (and even checked it) as the device completely died.
¿So, where is actually stored the Bootloader? In the Flash or a separated ROM chip. As a previous flashing attempt may caused failed write to key partitions.
Click to expand...
Click to collapse
Not true. My bootloader is unlocked, and Motorola is well aware of that since I had to ask them for the key. Unlocking it by itself doesn't void it. It's what you do afterwards that might void it. Like running an over volted kernel and frying something. Check the screen shot. My warranty is still good until Aug of this year. And if I really wanted to I could just relock the bootloader before sending it in, which blows that theory out of the water.
i replaced one under warranty with no issue. with an unlocked boot loader. twice.
Success is disgusted by some people, and will not share any files for free in the future.
If relock, how about OTA uptdate?
dungnghien said:
If relock, how about OTA uptdate?
Click to expand...
Click to collapse
yes，you can！only support CN firmware，but WW firmware upgrades are not supported. The WW version of the firmware upgrade, you need to download the update package to the root directory, restart the phone to detect the update.
Will this process factory reset or no ???
zinou213 said:
Will this process factory reset or no ???
Click to expand...
Click to collapse
YES！
Damn! I should have waited for this. Too late. I used unlock tool. Now Asus has my unlock info.
One question. Can I relock if I originally unlocked using asus unlock apk tool???
to confirm.......
i have a factory locked, untouched WW 512 unit. If i use this tool, i can unlock WITHOUT Asus knowing? no downsides?
@johnny886,
Thank for this, I waited for something like this, wanted to unlock the bootloader without using that app that gives IMEI to asus, a total offline boot-loader unlock.
although i stuck in step 3 ".update_image_EDL.bat”, dos prompt instantly closes. It may be a driver issue, as im not familiar with drivers for this phone, can you upload the drivers, only thing missing in this pack.
BakaValen said:
to confirm.......
i have a factory locked, untouched WW 512 unit. If i use this tool, i can unlock WITHOUT Asus knowing? no downsides?
Click to expand...
Click to collapse
There are no disadvantages, the only benefit is that you can unlock your phone through EDL mode, no need to install UnlockTool.apk to apply for unlock! The ASUS server will not get your unlocked status, you can get upgrades via OTA later.
Extreme184X said:
@johnny886,
Thank for this, I waited for something like this, wanted to unlock the bootloader without using that app that gives IMEI to asus, a total offline boot-loader unlock.
although i stuck in step 3 ".update_image_EDL.bat”, dos prompt instantly closes. It may be a driver issue, as im not familiar with drivers for this phone, can you upload the drivers, only thing missing in this pack.
Click to expand...
Click to collapse
Oh sorry, I forgot to upload the driver for Qualcomm! You can download and install this tool on your computer, and then follow the steps to unlock it! Download link:https://drive.google.com/open?id=1PRw4jcg0zQKLQnMz7gApMZtCYex1PfJM
How about Burnt Fuses? Does something like this occur? Basically, i want to ensure that the fact that ive unlocked is hidden for warrenty. (I can always re-lock before sending back if i need to)
It would suck for them to tell me, that they wont service it because it was previously unlocked.
BakaValen said:
How about Burnt Fuses? Does something like this occur? Basically, i want to ensure that the fact that ive unlocked is hidden for warrenty. (I can always re-lock before sending back if i need to)
It would suck for them to tell me, that they wont service it because it was previously unlocked.
Click to expand...
Click to collapse
By unlocking this way, you can enjoy the warranty!
had anyone tried this method on previous unlocked device? did it will regain CN FOTA? thanks!
Hi, i tried but stuck on step 3, any way to solve? tried to change the usb port but same thing happened.
on step 3:.Double click to open “1.update_image_EDL.bat”,
it said: {ERROR: WritePort:5164 Could not write to '\\.\COM10', Windows API WriteFile failed! Your device is probably *not* on this port, attempted 100 times
@johnny886,
Hi, I installed the Qualcomm drivers but for step 3 "1.update_image_EDL.bat”, it still prompts and closes immediately and I'm not sure how to QPST or QFIL. Are there ways to fix the bat file or provide a more detaisl on using QPST or QFIL please?
You can root without unlock bootloader?
Deleted, misread, don't think it's relevant...
So I did this and now my headphones jack isn't working. Has this happened to anyone else?
Update: The current workaround is to use the headphone jack of the included cooling fan.
Update 2: So it may have something to do with the bootloader that was flashed during the EDL unlocking process, which seems to be a generic SD855 bootloader. I came to this conclusion after I noticed that I was being limited to 70% battery charge. I flashed the WW 1910.35 OTA from ASUS' site and the battery now charges to 100%, but the headphone jack still remains broken. I will try to flash the WW 1910.44 update through fastboot when I get home, which I'm hoping will have whatever partition that was overwritten during the unlocking process.
Update 3: I figured it out. After using "fastboot flash boot TWRP.img" to boot into TWRP initially, I didn't flash the stock boot image again. This broke the headphone jack. So after booting into TWRP using that command, I had to flash the stock boot image first, then flash the TWRP and Magisk installers in that order. Hope this helps someone.
dennis96411 said:
So I did this and now my headphones jack isn't working. Has this happened to anyone else?
Update: The current workaround is to use the headphone jack of the included cooling fan.
Update 2: So it may have something to do with the bootloader that was flashed during the EDL unlocking process, which seems to be a generic SD855 bootloader. I came to this conclusion after I noticed that I was being limited to 70% battery charge. I flashed the WW 1910.35 OTA from ASUS' site and the battery now charges to 100%, but the headphone jack still remains broken. I will try to flash the WW 1910.44 update through fastboot when I get home, which I'm hoping will have whatever partition that was overwritten during the unlocking process.
Update 3: I figured it out. After using "fastboot flash boot TWRP.img" to boot into TWRP initially, I didn't flash the stock boot image again. This broke the headphone jack. So after booting into TWRP using that command, I had to flash the stock boot image first, then flash the TWRP and Magisk installers in that order. Hope this helps someone.
Click to expand...
Click to collapse
Hey, can you please tell me where to get the stock boot image for 1910.44?
Edit: Okay nevermind got it.
Stuck on step 1.update_image_EDL.bat
Almost all of us are stuck on step 1.update_image_EDL.bat . The CMD window just shows and closes fast, and phone doesnt enter fastboot mode. I installed all drivers. Can you post guide on how to do that step using QPST or Miflash tools?
Hi,
I have recently bought a T-mobile version of OP7T. Even though T-Mobile unlocked the network permanently, I still didn't like T-mobile branding at the start, plus I wanted Stock OxygenOs. So what did I do?
(No root and No TWRP)
1. I've Unlocked the bootloader via the method in this post. Stage-1
2. I have flashed the stock rom which I downloaded from this post. Stage-2
3. Phone loads up perfectly fine and now I have stock OOS. to make sure everything is fine, I also did a factory reset and re-flashed the stock rom to make sure there's no track of previous roms.
4. I then wanted to relock the bootloader in order to keep my device safe and enjoy having a normal device like any others without the ugly message at the startup.
5. So I put it in fastboot mode and executed "fastboot flashing lock" or "fastboot oem lock" and it gave me the options and I locked the bootloader.
6. after this, I can't do anything else. it keeps showing me the page where it says Your device is corrupt. It can't be trusted and will not boot and in order to get rid of I need to keep unlocking the devices relfashing everything and the rest of the story.
I've read all the accurate and inaccurate infos on forums where another guy claims when he did turn everything to stock (recovery + rom + factory reset) things go back to normal and he's done. in my case it doesn't work.
Please help me, how I can be able to relock the bootloader without running into Your device is corrupt. It can't be trusted and will not boot.
Thanks.
First I think no help is stupid, since that is the regular way of doing it. Second you should have read extensively before doing what you did. T-mobile is very specific device. What he probably didn't mention is that you need the original rom t-mobile branded, since you need original software to be able to relock bootloader. I would recommend use msm- tool to recover you device. Read carefully and next time just be sure that what you are doing is informed.
I have unlocked the device and installed everything. the phone works like a charm.
My only problem is that I can't re-lock the bootloader.
bahadorkh said:
I have unlocked the device and installed everything. the phone works like a charm.
My only problem is that I can't re-lock the bootloader.
Click to expand...
Click to collapse
That was my point in order to relock your device you must have the original firmware that the phone came with if it's t-mobile. Installed in both slots. Then you can relock you device.
Please try this thread
[OP7T T-MOBILE][OOS 11.0.1.5 HD63CB] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
After the first boot you must update via OTA, then after the 7T reboots you can go back into the bootloader and relock it. I'm typing this message out on my T-Mobile 7T running the Global OOS 11 version. _ANY_ modification to the system whatsoever will cause the "Device is Corrupt" error, due to a mismatch of the keys used by OnePlus to sign the firmware. I've attached a screenshot of my "About phone" section as proof of the conversion, however, I can't show proof of my bootloader's state because I don't have access to a PC at the moment and *#*#7378423#*#* didn't work, neither did *#*#7378423*#*#. If I remember to the next time I'm near a PC I'll add proof of that too.
For further reading see::
1.) https://source.android.com/security/verifiedboot/boot-flow#locked-devices-with-custom-key-set
And
2.) https://source.android.com/security/verifiedboot/dm-verity
P.s. I do realize that I'm almost a year late to this discussion, but I thought knowing would/could still be useful to someone.
Hello,
Today I wanted to root my HV20. So I wanted to downgrade it to EMUI9 to unlock it. But something must have gone wrong with the downgrade because I can't start it anymore. I always get to the eRecovery menu. But I can't download the latest version and recovery there, the error always comes up: getting package info failed
Then I went to the fastboot menu and wanted to restore it via HiSuite. This does not work because my mobile phone is not recognized by the computer.
There is now FRP Unlock under the Phone locked state in the fastboot menu. What does that mean I couldn't find anything about it online.
Thanks for the help in advance.
Kind regards