Issue unlocking bootloader on US996 - LG V20 Questions & Answers

Hello,
I am going through the official way of unlocking the bootloader through developer.lge.com
I am trying to see my device's ID but can't get into boot loader mode
When ever I run "adb reboot bootloader" in CMD I get the message "no device/emulator found"
- OEM unlock is enabled
- USB debugging is enabeled
- I am using LG usb drivers
Did a ton of googling and not sure what else to try.
I wanna root this phone so bad!

Well I was able to get past the ID issue by using a different PC, however once I was able to input my device ID and everything into the LG site, the message I got was this:
Your device (LGUS996Z) does not support unlocking the bootloader. Please check your model. Your account will be locked if you enter the wrong information more than 8 times.
I don't even understand how it's possible if this us a US996.. gonna be pretty upset if I can't unlock the bootloader
What the heck is a LGUS996Z anyway!?
Gonna be really upset if I can't unlock the bootloader
Here's a picture of the model number sticker:
https://www.dropbox.com/s/y64rgsee2rol37a/20180120_024800.jpg?dl=0
pretty sure it isn't the us cellular version

Related

unable to unlock bootloader+wifi problem

Hey guys, I need your help. I'm unable to unlock bootloader. I downloaded everything I need, I got my unlock number from huawei site etc. When I run adb it detects my phone, I write down adb reboot bootloader, it switches my phone into that white screen where it says LOCKED. Then I run this command - fastboot oem unlock (my unlock number from huawei site) and it replies with- Waiting for any device and nothing happens. Phone is still locked, I cannot write more commands and even if I wait for some period of time, nothing changes and I am forced to reboot without unlocking
Do you guys have any suggestions?
PS: another problem...probably week and half ago my wifi stopped working..it detects different wifi routers, but I am unable to connect and if I connect, the internet is not working. I've read on other forums it could be hw issue. I've also tried every possible step to solve this problem but flashing new ROM, since I haven't been succesful with unlocking bootloader.
Thanks.
sainG said:
Hey guys, I need your help. I'm unable to unlock bootloader. I downloaded everything I need, I got my unlock number from huawei site etc. When I run adb it detects my phone, I write down adb reboot bootloader, it switches my phone into that white screen where it says LOCKED. Then I run this command - fastboot oem unlock (my unlock number from huawei site) and it replies with- Waiting for any device and nothing happens. Phone is still locked, I cannot write more commands and even if I wait for some period of time, nothing changes and I am forced to reboot without unlocking
Do you guys have any suggestions?
PS: another problem...probably week and half ago my wifi stopped working..it detects different wifi routers, but I am unable to connect and if I connect, the internet is not working. I've read on other forums it could be hw issue. I've also tried every possible step to solve this problem but flashing new ROM, since I haven't been succesful with unlocking bootloader.
Thanks.
Click to expand...
Click to collapse
In fastboot(white screen with Android logo saying locked) type fastboot devices.
If it displays YOUR phone serial no of your phone then everything is fine. If no serial number appears then your phone isn't connected to minimal adb. Also it can be a driver/cable issue.

How to unlock the bootloader with nougat build?

I was searching for a method to unlock the bootloader after updating to nougat but i couldn't find any.
Any android version the bootloader unlock method is same. check the forum for newbie thread to unlock your bootloader.
Ramith96 said:
I was searching for a method to unlock the bootloader after updating to nougat but i couldn't find any.
Click to expand...
Click to collapse
You can get your unlock code from the Motorola website: https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
As the website mentions, this will void the rest of your warranty once your device is unlocked, though there are reports on XDA of people getting their devices serviced even after a bootloader unlock. Your experience may vary.
Also, I'd recommend toggling OEM unlock on - you can get to this by going into Settings > About Phone, and tapping 7 times on the build number section. Go back to the main Settings menu and you should see Developer Options has appeared. Go into the Developer Options and scroll to OEM unlocking, and toggle it on before you boot to unlock your bootloader.
So the method would be:
1 - Toggle OEM unlock in the Developers Options
2 - Follow the Motorola website instructions to unlock your bootloader
3 - Wait whilst it wipes your data
4 - Boot and enjoy your unlocked phone
Good luck!
Waiting for device
In command window it shows as 'waiting for device'. Could you help me?
mansoor643 said:
In command window it shows as 'waiting for device'. Could you help me?
Click to expand...
Click to collapse
You need to check your driver to recognize the device. With the command "fastboot devices" there you should see your devices serial number. If not = driver, cable, firewall problem or your device is not in fastboot mode

I can not flash my unlock token!

I am trying to unlock my bootloader. I finally received my unlock token from OnePlus but for some reason i cant unlock the device. i have the unlock-bin file in the same folder as adb, i have usb debugging on, my device is in fastboot mode, but i keep getting this error (see attached picture). Can someone please help? Also, does unlocking the bootloader factory reset the device?
bigmikey307 said:
I am trying to unlock my bootloader. I finally received my unlock token from OnePlus but for some reason i cant unlock the device. i have the unlock-bin file in the same folder as adb, i have usb debugging on, my device is in fastboot mode, but i keep getting this error (see attached picture). Can someone please help? Also, does unlocking the bootloader factory reset the device?
Click to expand...
Click to collapse
Replace <unlock_token.bin> with the ACTUAL unlock token you got.
Yes, unlocking bootloader wipes the phone.
There are multiple forums on this.
While the phone is plugged in to the PC reboot it to fastboot again leaving it plugged in. ( Make sure you selected OEM unlock in developer options)
I managed to get it to work by using the ALL IN ONE tool
Just give the command, and drag and drop the unlockbbin. Should look like this: fastboot flash cust-unlock 23857363fbsndhdnd.bin. {for future reference, i have to reuse a couple times a week
Not unlock.bin
bigmikey307 said:
I managed to get it to work by using the ALL IN ONE tool
Click to expand...
Click to collapse
how bro can u explain ?
Same problem here
I think I've been out of the game for too long........ I was just too embarrassed to post the same question , ha! Well, at least the first part of the OP's question, about having the token in the correct path and it producing an error. If there's a step by step command by command walk-thru out there, I'd be grateful for the link. And yes I know how a search bar works, but all of the guides or whatever you want to call them seem to be missing a few steps....... Or maybe I should just go back to eating my butterscotch and yelling at kids to stay off my lawn ?

Essential soft brick, any way to unlock flash from fastboot to sideload OTA?

Hello I am posting in Q&A because I'm a new XDA user, I was not allowed to post in the dev channel.
I have an Essential phone that has been working great for the past few years, no issues, and it was running standard build receiving OTA updates, until the very last update, which soft bricked the phone.
The phone was never enabled in developer mode while in Android, and now, I can't boot the phone into android at all. The only thing I can do is get into fastboot.
Fastboot state shows DEVICE STATE - locked
Any commands I try to unlock flashing, or change slots, anything at all, I get the error that the device is locked so all commands to unlock fail.
Is there any way to unlock device state from fastboot? I saw a youtube video showing a way to use a chopped USB cable to enter emergency / EDL mode for Qualcomm-based Android devices, but have not seen anyone post that this was successful with the Essential
Does anyone know of any method to be able to unlock flashing from fastboot? Or any other method to un-brick an essential? I've attempted everything, on both Mac and PC, nothing works.
On mac or PC, I can query the device in fastboot and get a response, I just can't do anything to unlock anything!!
Many thanks in advance for any suggestions!
Same problem
Same thing happened to me. Same day as you. I can get fastboot but not adb but since the device is locked I can't flash. I've only had the phone about 6 months so I contacted customer support and they offered to replace the phone.
It might be a known issue because they didn't even try to address the fact that I could get fastboot connected but not adb. They just offered to replace.
Thanks for the info! I am -at least in this case- unfortunately an early adopter. I bought two essentials at the beginning of the pre-release.
Essential support checked my serial number and said the phone was out of warranty.
Has anyone been able to force the Essential into EDL mode to recover that way? It looks like you have to latch one of the USB pins to ground, or 5V, but I haven't found any detailed instructions on how to make this work on the essential...
Thanks again
Justin
I'm sure things have changed and I'm wrong, but if you can get into the fastboot menu can't you just cycle through the options until you get to recovery and then flash an official release from Essential?
I may be thinking of LG or something but this should be possible as long as it's newer than the current software installed because it will see it as an official update and allow the flash.
Thanks but unfortunately, when I try and do that, the phone just does the same thing, it hangs forever on the initial boot screen white Android text with the circle/square logo...
That's why I've been looking into the more direct hardware version of forcing the phone into EDL mode, which is supposed to be possible with all Qualcomm based phones.
I've just not found the time yet to find a USB-C cable I'd be happy to cut in half and short the pins on! Which is why I was hoping someone might have tried this with an essential before to know if it was successful before I start trashing good cables
Thanks again for your reply!
JB
justinbaird said:
Hello I am posting in Q&A because I'm a new XDA user, I was not allowed to post in the dev channel.
I have an Essential phone that has been working great for the past few years, no issues, and it was running standard build receiving OTA updates, until the very last update, which soft bricked the phone.
The phone was never enabled in developer mode while in Android, and now, I can't boot the phone into android at all. The only thing I can do is get into fastboot.
Fastboot state shows DEVICE STATE - locked
Any commands I try to unlock flashing, or change slots, anything at all, I get the error that the device is locked so all commands to unlock fail.
Is there any way to unlock device state from fastboot? I saw a youtube video showing a way to use a chopped USB cable to enter emergency / EDL mode for Qualcomm-based Android devices, but have not seen anyone post that this was successful with the Essential
Does anyone know of any method to be able to unlock flashing from fastboot? Or any other method to un-brick an essential? I've attempted everything, on both Mac and PC, nothing works.
On mac or PC, I can query the device in fastboot and get a response, I just can't do anything to unlock anything!!
Many thanks in advance for any suggestions!
Click to expand...
Click to collapse
I have the exact same problem,
My phone is stuck on Essential log when I turned it on,
I can access Bootloader normally but the device is locked so I cannot flash it,
Recovery is corrupted, when I try to star it, it shows only the the Essential log and freeze so I can not format or wipe or sideload.
OEM Locked and unchecked
USB Debugging is unchecked
and I can't flash anything,
Did you managed to unlock it through Fastboot command or any other way ?
I wish I can just login to the recovery or unlock it so I can flash it clean,
Kindly help me if you found a way out
Thank you

Bricked by locking the bootloader?

So, the thing is - in the morning I have locked my device's bootloader, I did not install anything or else, just in minimal adb fastboot typed "fastboot oem lock", because I needed my bl to be locked to run some apps properly. Little did I know, it was a global rom on a chinese phone, and it also locked my device from booting the system, because it landed in state "this miui version cannot be installed on this device". As many people may know, it made my xiaomi able to run only fastboot or recovery menu, it just cannot boot the system. For the last 6 hours straight I have been looking for any resonable solutions, doable on the spot, but all I can see is EDL. Before anyone asks - I have already tried MiFlash (it won't run because device is locked), also minimal adb fastboot gives error "token verify failed", so I know i have to use something to unlock my phones bootloader. Of course, there is another BUT - I did not turn on usb debugging and mi boot unlock in settings, so using Mi Unlock on pc with fastboot turned on gives result in "Please add your account in "MIUI's Settings > Developer optionss > Mi unlock status", which, as I said, I cannot do.
So we come to my question - is there any reasonable way to turn on this "Mi unlock status" and USB Debug without turning on whole system, or any other way to unlock bootloader/turn on it properly?
Greetings from Poland and thank you for your help
Which recovery do you have? Maybe you could try to restore system and data if it is twrp/fox.
If it's stock recovery give the mi assisant a try, never used it myself though, but worth a try.
Also look here https://c.mi.com/thread-2224746-1-0.html
and here https://c.mi.com/thread-2312140-1-0.html

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