So, here's my cautionary tale of why jumping into things without research is a bad idea.
TLDR: Nougat Android Pay doesn't like unlocked bootloaders; locking the bootloader can be a bad idea, and IMEI restoration seems to work (at least, if it partially worked with IMEI 0)
I just upgraded to an A2017U from a Nexus 5 on Marshmallow, which had its bootloader unlocked, with SuperSu installed but root disabled and hidden, and Android Pay set up. All fine and dandy.
When I got my Axon 7, I thought it'd be a good idea to unlock the bootloader in case I needed to recover data, so using the Axon 7 Toolkit and some guides, that went just fine.
However, when I tried using Android pay, I found out that it didn't work on bootloader unlocked devices on Nougat, so I thought I'd just lock the bootloader again.
One "fastboot oem lock" later, I found myself in a world of trouble. The phone wouldn't boot, but at least I still had the stock recovery. Tried putting one of the EDL zips on an SDcard to see if it would flash. Nope.
Tried the Axon7Toolkit's EDL mode unbricker, but due to MD5 mismatches/missing files, it wouldn't take.
Tried Tenfar's official B07 EDL flash. Got "Error: Bad format" when I tried it after deleting the two files he mentioned, so somehow, I thought it'd be a good idea to add those files back in and try again. Nope.
Then I tried flashing the B15 EDL image. Somehow got dropped into "Factory Test Mode" and couldn't leave.
Then I flashed the B19 EDL image, which, finally got me back onto a working OS, with a locked bootloader.
At this point, everything connected fine, but I found out that my IMEI was 0 in both SIM 1 and SIM 2. Didn't think about it too much at the time, since everything worked, until I realized I couldn't receive any calls (placing them was fine). The culprit? Wi-Fi calling and VoLTE (on my carrier, T-Mobile) was on. Disabling those worked, but I realized that these technologies probably needed a valid IMEI to work.
Thus, it was time to go back into the business of unlocking bootloaders; I followed the GizDev guide to reprogramming IMEIs, which worked on the rooted, stock B19 image (the only thing the guide doesn't mention is that you need to manually install the 901D driver from device manager; it showed up in the list of already-installed drivers, probably from the XiaoMi flash tool installation).
Now, with the original IMEI back in place, I was elated to find out that Wi-Fi calling and VoLTE worked again! And now, here I am, exasperated yet excited, to have restored the functionality of my Axon before that fated "fastboot oem lock". Now, only if I could find a way to get Android Pay working again...
Use Magisk. If you want to stay stock you have to use an older version. Look at the version used by bad boyz.
I have the same problem that was the method he used to restore his image and helped me to thank infinitely
Hi everyone,
This is starting to really do my head in, considering I unlocked, flashed and rooted Redmi 3S on first try and in a few minutes.
I managed to unlock bootloader of Redmi Note 4 SD after finally installing correctly usb fastboot drivers (using MiFlash). I flashed TWRP 3.2.2.0, flashed OPT patch and SuperSU, and got a TWRP bootloop (phone always booted into TWRP).
Using MiFlash, I flashed Global Dev Rom and then phone updated by ota to latest 7.6.29. HOWEVER, stupid of me, I flashed rom with option checked of Clean All and Lock, accidentally locking bootloader again.
I try to unlock phone again with Mi Unlock Tool, log into my account succesfully and Tool doesn´t detect phone. Drivers are installed but Tool says Phone Not Detected. I unplug and plug usb cable to all ports and nothing.
However if I use older version of Mi Unlock Tool 1. 1, it detects phone but when I unlock ,it stops at 50% saying Couldn´t Verify Device. Account is bound to phone and I´m logging in with correct details.
Does one need to apply to Xiaomi again for a second unlock?? Driver problem? Account problem?
Anyone have any ideas? I would like to flash TWRP and root phone to be able to fix once and for all that FRIGGIN audio mic noise cancellation when recording videos, seeing as Devs don´t develop a rom with that huge bug patched.
Any help would be very much appreciated.
Cheers!!
Did you try it? https://forum.xda-developers.com/redmi-note-4/how-to/bootloader-unlock-variants-to-read-t3565459 Read also second post, you should turn on oem unlock, and one apply for one phone.
Thanks buddy, tried all that, but I have posted in that specific bootloader thread to see if someone has an answer.
Cheers friend!
Hello friends of XDA, I have a big problem between hands, I have a MOTO Z and I had it in android 7.0 since last year the update to andorid 7.1.1 did not arrive and I felt that with android 7 the battery was consumed very quickly, so I tried to find the update to flash it and just about 3 days ago I found it, I proceeded to download it and flash it in fastboot and adb.
The thing is that a few months ago, browsing through my phone (I had already rotated it, and unlocked the bottloader, I decided to re-block the bootloader, and remove the root, which never worked at 100) I got into the developer options, and I saw an option that until then I didn't know about its "OEM Unlock"function, as it was turned on and deactivated because I thought it didn't work.
Returning to the update flashing I proceeded as usual, with the commands, I proceed to restart the device and show the image of the boot of motrola but then it shows me a message in red letters.
"Startup Failed"
"failed to pass validation, backup to fastboot.
I thought it was a compatibility problem with the downloaded version of 7.1.1 so again I decided to flash the stock rom 7.0 but when I finished and restart the same message appeared.
I started to investigate and it seems that the OEM blockade is responsible for not being able to install any Stock Rom, or anything, and now I have a nice brick with Moto mods and I can't use it.
I wanted to unlock OEM in fastboot but nothing. sends message from "ALLOW OEM UNLOCK IN SETTINGS"
There is way to unlock the OEM from pc or fastboot without needing to be unlocked from the android settings, as in my case it is impossible for me,
I'd be very grateful for your help friends, I know it's a bit tedious to read but it's the only phone I have and I feel weird without it on the street.:bueno::bueno::llorando:
I'm with same problem here!
Suckmymfdick17 said:
Hello friends of XDA, I have a big problem between hands, I have a MOTO Z and I had it in android 7.0 since last year the update to andorid 7.1.1 did not arrive and I felt that with android 7 the battery was consumed very quickly, so I tried to find the update to flash it and just about 3 days ago I found it, I proceeded to download it and flash it in fastboot and adb.
The thing is that a few months ago, browsing through my phone (I had already rotated it, and unlocked the bottloader, I decided to re-block the bootloader, and remove the root, which never worked at 100) I got into the developer options, and I saw an option that until then I didn't know about its "OEM Unlock"function, as it was turned on and deactivated because I thought it didn't work.
Returning to the update flashing I proceeded as usual, with the commands, I proceed to restart the device and show the image of the boot of motrola but then it shows me a message in red letters.
"Startup Failed"
"failed to pass validation, backup to fastboot.
I thought it was a compatibility problem with the downloaded version of 7.1.1 so again I decided to flash the stock rom 7.0 but when I finished and restart the same message appeared.
I started to investigate and it seems that the OEM blockade is responsible for not being able to install any Stock Rom, or anything, and now I have a nice brick with Moto mods and I can't use it.
I wanted to unlock OEM in fastboot but nothing. sends message from "ALLOW OEM UNLOCK IN SETTINGS"
There is way to unlock the OEM from pc or fastboot without needing to be unlocked from the android settings, as in my case it is impossible for me,
I'd be very grateful for your help friends, I know it's a bit tedious to read but it's the only phone I have and I feel weird without it on the street.:bueno::bueno::llorando:
Click to expand...
Click to collapse
Try to boot in Fastboot flash twrp and flash ressurection remix rom. It's great rom. Forget about locking. I had the same problem like you as I was trying to flash stock ROM and lock bootloader.
I gave up on this.
knjigo said:
Try to boot in Fastboot flash twrp and flash ressurection remix rom. It's great rom. Forget about locking. I had the same problem like you as I was trying to flash stock ROM and lock bootloader.
I gave up on this.
Click to expand...
Click to collapse
Well, when the root didn't work properly, I flashed the phone again and blocked the bootloader. Will I still be able to install TWPR or should I lose my phone?
Suckmymfdick17 said:
Well, when the root didn't work properly, I flashed the phone again and blocked the bootloader. Will I still be able to install TWPR or should I lose my phone?
Click to expand...
Click to collapse
What do you mean with "I blocked my bootloader"?
Twrp is easy to flash. Root is integrated in ressurection remix rom. And this rom is great. Just try to flash twrp in Fastboot and than ressurection remix with twrp.
Can you boot in Fastboot?
Do you remember what build of 7.1.1 you had on your device before downgrading to 7.0?
If so, I would suggest finding that firmware (the full stock firmware, not OTA updates) or newer if you can, and try to flash that. Since your bootloader is still likely from the 7.1.1 build, a locked bootloader will only permit files matching the same patch level (i.e. from the exact same stock ROM as that bootloader patch) to boot.
If not, then unfortunately there's not a lot we can do. You could wait for a newer firmware to get leaked, but as your device is unable to boot (due to failing the bootloader checks) and you cannot toggle OEM unlocking because you cannot boot, it's a nasty vicious circle that is difficult to get out of. You may have to consider sending your device for service and pay for an expensive motherboard replacement otherwise, since Motorola have a record of your device being unlocked. Your service centre experience may vary.
Only lock a bootloader after ensuring you've flashed all the stock firmware and it is all the same patch level as your bootloader. Hopefully you'll find newer firmware that you can repair with.
tjgibri said:
I'm with same problem here!
Click to expand...
Click to collapse
I solved it, I finally flashed the stock rom to my phone and it works.
Apparently my pc was not flashing the stock rom in adb, and the phone turned off when loading the software. I did it 3 times until I load correctly and start well.
if you have the same problem apparently then OEM Blocking is not responsible. You have to flash the most current rom or the one that you had by default when the brick happened to you, you flash it in a normal way with commands of adb and ready, I would have to come back to life.
download from firmware center MotoZ Griffin the most current rom stock at 7.1.1
echo92 said:
Do you remember what build of 7.1.1 you had on your device before downgrading to 7.0?
If so, I would suggest finding that firmware (the full stock firmware, not OTA updates) or newer if you can, and try to flash that. Since your bootloader is still likely from the 7.1.1 build, a locked bootloader will only permit files matching the same patch level (i.e. from the exact same stock ROM as that bootloader patch) to boot.
If not, then unfortunately there's not a lot we can do. You could wait for a newer firmware to get leaked, but as your device is unable to boot (due to failing the bootloader checks) and you cannot toggle OEM unlocking because you cannot boot, it's a nasty vicious circle that is difficult to get out of. You may have to consider sending your device for service and pay for an expensive motherboard replacement otherwise, since Motorola have a record of your device being unlocked. Your service centre experience may vary.
Only lock a bootloader after ensuring you've flashed all the stock firmware and it is all the same patch level as your bootloader. Hopefully you'll find newer firmware that you can repair with.
Click to expand...
Click to collapse
Thanks for your help friend, I finally flashed it with a recent android 7.1.1 update. Apparently the OEM lockout was not the culprit, but it was an interrupted flash of android 7.1.1 at some point when loading the software to the phone, it would shut down on its own and not complete the installation, which showed me the mentioned message. I didn't realize that and thought it was the OEM blockade.
I finally did it on another pc and it worked. the phone came back to life.
I have one Moto Z2 Force (XT1789-05), bought from coolicool.com, I didn't know device came Unlocked Bootloader, Device rom had problem with many apps, I googled and found one topic in XDA developer to Install Stock Rom, I downloaded and Installed India Rom, it's worked somehow fine, but still had problem, I downloaded Verizon Rom, Android 8, after Installed Android 8 Verizon Rom, Locked device bootloader immediately, now device stuck at Welcome Wizard in Android 8, after select language I got this message: (Please wait, this may take a few minutes) this is proof video (http://ahmn.co/Upload/IMG_0161.MOV), after this issue, device already locked, I can't unlock, because need to go to the Developer Option in Setting, I stucked in Welcome Wizard, there isn't any bypass, So, I start to search in Google, XDA-Forum, Android Central and more, I created many threads, many requests, no one can't help me, I tried to reach google developer support to the tell to me how can I bypass Android 8 Welcome Wizard, there is must be a way, but I can't find it, now I can access to Android Recovery and Bootloader
1. if you help me to FORCE UNLOCK device without need Developer Option in setting my problem will solve
2. If you help me to Bypass Android Welcome Wizard, access setting and enable OEM Unlock
3. If you help me to update the device from Android 8 to Android 9 Verizon ROM via ADB Sideload or Update from SD card in Recovery mode
4. If you have any idea to how can I fix it
Extra Information: I bought Belkin and Uni USB-C to Ethernet Adaptor to help me bypass Android 8 Welcome Wizard, I bought WSKY WIFI Adaptor because device Wifi can't find any network (I found QR setup by tap several times in Language Selection), after this section need to download google device policy apk, my device can't find any Wifi Network and my Ethernet Adaptor can't help me either, So, I just remained with my phone, and I can't do anything,
Please, someone, help me
My Device SKU: XT1789-05
Hey folks,
I've tried my best so far, but I am stuck.
I wanted to change the ROM on my wife's Redmi 3 pro. It was running on a rather old RR version and I wanted to go back to MIUI to have a better camera.
After an unsuccesful attempt to flash this, I was stuck in a bootloop.
This - in general - was no problem: I've decieded to flash an official firmware via MiFlash, but this apparently didn't work as well.
So, now MiFlash has locked the phone again but not properly installed anything.
I can access Fastboot and the pre-installed recovery, but nothing more.
The unlock tool tells me that I can't unlock it because it is apparentyl not bound to my MI account (and I have no clue with which account I've unlocked it the last time).
Desperately appreciation any kind of help!
Thanks in advance.
UPDATE: I was apparently not patient enough. After quite a while it finally booted. Now I can access the system again, but still can't unlock the phone.
UPDATE 2: I also found out with which account I've unlocked it and thus everything worked after all. Now sporting Lineage 14 with camera mod.
Please, feel free to explain how can it finally booted. Your experience might be help somebody sometime.
?
I've recently (successfully?) bootloader unlocked my S9+ snapdragon and am trying to flash twrp in order to flash lineage. I waited a week for the oem unlock option, which I used sucessfully, and I used the crom service app to unlock my bootloader. Neither have given me any issues, and when I boot normally and open the crom app, it tells me that my bootloader is already unlocked. Unfortunately, when I run odin, it successfully sees my device and is able to push the twrp .img.tar file through the AP option. It fails to flash however, and the phone gives a "only official released binaries are allowed" message. The frp lock and oem lock fields say off in the download mode screen, but the rmm state is prenormal again. I've heard that you can flash some rmm state bypass zip if if resets after you unlock your phone, but I'm not sure which one would work with my device, or if I need to wait another week. Thanks in advance to anyone who can provide information on what I should do.