Hi, I recently flashed the stock LG V30 US998 f variant rom through LGUP and even though the bootloader is clearly unlocked, the bootloader says I have to enable OEM unlocking. OEM Unlocking is greyed out in the settings and it will not let me use fastboot commands at all. I plan to sell this phone tonight and I can't seem to get OEM Unlocking turned on even though the bootloader is unlocked to use fastboot commands. Can someone direct me to some help, please? Thank you.
Related
A friend of mine got this phone recently, it's the "Special Edition" H840, but it's European.
I was checking the Developer Options and noticed that i was able to enable OEM Unlock.
My questions are:
Should I try to unlock the bootloader via fastboot?
Should I try another fastboot command first (or after) to see if they've been blocked like on the H830?
Would me confirming any of this help you guys out in any way?
Thanks in advance, I'd love to see development get started on the H840 if it's possible to unlock its bootloader.
Knochenfabrikant said:
A friend of mine got this phone recently, it's the "Special Edition" H840, but it's European.
I was checking the Developer Options and noticed that i was able to enable OEM Unlock.
My questions are:
Should I try to unlock the bootloader via fastboot?
Should I try another fastboot command first (or after) to see if they've been blocked like on the H830?
Would me confirming any of this help you guys out in any way?
Thanks in advance, I'd love to see development get started on the H840 if it's possible to unlock its bootloader.
Click to expand...
Click to collapse
The OEM unlock option is there on all G5's, it was even there on my ATT V10 that has yet to be unlocked. I suppose you could try to run the fastboot commands, but I doubt you'll actually get anywhere with it.
As Eric said, they're present in every G5 version. Don't waste your time, you can't unlock it without the IMEI associated .bin file.
Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot commands work and the only options I have with the volume buttons are RESTART or POWER OFF. I am I missing something? has anyone come across this? So far I tried a hard reset, I flashed the oem rom with LGUP with no luck. Any Help or insight would be greatly appreciated.
FZZF said:
Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot commands work and the only options I have with the volume buttons are RESTART or POWER OFF. I am I missing something? has anyone come across this? So far I tried a hard reset, I flashed the oem rom with LGUP with no luck. Any Help or insight would be greatly appreciated.
Click to expand...
Click to collapse
It could be a used US cellular us998. The us cellular version does not have a unlockable bootloader like the open market us998.
FZZF said:
Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot commands work and the only options I have with the volume buttons are RESTART or POWER OFF. I am I missing something? has anyone come across this? So far I tried a hard reset, I flashed the oem rom with LGUP with no luck. Any Help or insight would be greatly appreciated.
Click to expand...
Click to collapse
How are you trying to unlock the bootloader? You have to flash the unlock.bin file given to you by the LG Developer Bootloader Unlock list, after you've entered the IMEI and DEVICE-ID (and it was verified as being eligible) after you've created an LG developer account.
Have you done all that?
You can't just walk up to the phone and OEM unlock the bootloader.
From that screen you're on in your picture, you flash the unlock.bin file with a fastboot flash command.
You've read this post?
https://forum.xda-developers.com/showthread.php?p=75449612
And this one?
https://forum.xda-developers.com/showthread.php?p=75403645
Sent via open market LG US998 V30/V30+
---------- Post added at 07:19 AM ---------- Previous post was at 07:19 AM ----------
R800x_user said:
It could be a used US cellular us998. The us cellular version does not have a unlockable bootloader like the open market us998.
Click to expand...
Click to collapse
B&H Photo wouldn't sell used U.S.Cellular model phone.
I can't tell if he says he bought it from B&H Photo directly, or the person he bought it from claims they bought it from B&H Photo?
If the latter, does he have any proof from the seller it's actually from B&H Photo? If he bought it himself from there, then he knows for sure.
Sent via open market LG US998 V30/V30+
ChazzMatt said:
How are you trying to unlock the bootloader? You have to flash the unlock.bin file given to you by the LG Developer Bootloader Unlock list, after you've entered the IMEI and DEVICE-ID (and it was verified as being eligible) after you've created an LG developer account.
Have you done all that?
You can't just walk up to the phone and OEM unlock the bootloader.
From that screen you're on in your picture, you flash the unlock.bin file with a fastboot flash command.
You've read this post?
https://forum.xda-developers.com/showthread.php?p=75449612
And this one?
https://forum.xda-developers.com/showthread.php?p=75403645
Sent via open market LG US998 V30/V30+
---------- Post added at 07:19 AM ---------- Previous post was at 07:19 AM ----------
B&H Photo wouldn't sell used U.S.Cellular model phone.
I can't tell if he says he bought it from B&H Photo directly, or the person he bought it from claims they bought it from B&H Photo?
If the latter, does he have any proof from the seller it's actually from B&H Photo? If he bought it himself from there, then he knows for sure.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Thank you for the replies. To clarify your legit questions, I bought the phone directly from B&H and even called LG to confirm it is an unlocked open market US998 and is under warranty. I've always had HTC phones and always unlocked and rooted them etc... LG is new to me but I am somewhat familiar with the process bootloader unlock is very similar to HTC. Back to the bootloader issue yes I did everything you mentioned other then getting the unlock code Bin file from LG because I can't get the device-ID from the phone since it wont go into fastboot mode it wont do anything when I issue fastbood commands in that screen. and yes I read everything I can read about doing this and tried everything I can think of, but of course I can't think of everything! it could be a very simple thing I am missing. I read somewhere that, that screen is a debug bootloader. also when I reboot into recovery using ADB command it says "NO COMMANDS HERE" if I remember correctly. it's very frustrating when you can't void the warranty on your phone!!! Again I appreciate the responses.
FZZF said:
Thank you for the replies. To clarify your legit questions, I bought the phone directly from B&H and even called LG to confirm it is an unlocked open market US998 and is under warranty. I've always had HTC phones and always unlocked and rooted them etc... LG is new to me but I am somewhat familiar with the process bootloader unlock is very similar to HTC. Back to the bootloader issue yes I did everything you mentioned other then getting the unlock code Bin file from LG because I can't get the device-ID from the phone since it wont go into fastboot mode it wont do anything when I issue fastbood commands in that screen. and yes I read everything I can read about doing this and tried everything I can think of, but of course I can't think of everything! it could be a very simple thing I am missing. I read somewhere that, that screen is a debug bootloader. also when I reboot into recovery using ADB command it says "NO COMMANDS HERE" if I remember correctly. it's very frustrating when you can't void the warranty on your phone!!! Again I appreciate the responses.
Click to expand...
Click to collapse
Problem solved. The issue was a missing driver in windows 7. I am attaching the driver in case anyone runs into the same problem just double click "install.exe" after extracting the zip then connect the phone reboot into bootloader and you should see Fastboot in device manager, now Fastboot commands should work. Thanks to everyone that responded.
Just want to say that this is the ONLY answer that worked for me, out of countless pages of irrelevant or bad advice. The file above will fix the "Other devices: Android" missing device when in fastboot mode on Windows 7. Fastboot will then see your LG-V30.
aumua said:
Just want to say that this is the ONLY answer that worked for me, out of countless pages of irrelevant or bad advice. The file above will fix the "Other devices: Android" missing device when in fastboot mode on Windows 7. Fastboot will then see your LG-V30.
Click to expand...
Click to collapse
WTF Troubleshooting Tip #7.
No need to go through countless pages of irrelevant or bad advice. . Glad you found it, but it's posted in the WTF INSTRUCTIONS Troubleshooting Tips for good reason. @FZZF is thanked there also.
Well yeah I guess that's true. Most of the bad advice was from across the Internet over there, not from here of course.
I'd suggest to always make it a habit of typing 'fastboot devices' or 'adb devices' whenever you connect the device to your pc.
If (either of) those commands don't respond with a listing of your device name / number... then the pc can't see the device. That's a
pc driver problem.
Cheers, keep it simple.
Having trouble rooting my LG K40. I have the same problem as this person when trying to boot into fastmode: https:// youtu.be/yQ99lQv0rQk?t=26
You can find his post here explaining the process more in detail: https:// lgk20.com/root-lg-k40-lm-x420-bootloader-unlock-twrp/
MODEL #: LM-X420MM
Any help is appreciated,
Thanks in advance.
im having the same problem. i must have a proclivity towards phones with what seems impossible rooting methods. the first was the samsung j7 prime and now the lg k40 lmx420mm. ive gotten as for as adb reboot-bootloader, just restarts device, fastboot commands are either not recognized or i receive "waiting on device". Ive updated drivers, followed a diff. method found on reddit posted by jamesrascal (i cant post url here because of my newb status). Phone just stays stuck in firmware update. i feel as if ive exhausted all resources, any direction or help would be appreciated, im not educated on rooting ive been successful a few times on other phones and jailbroken some iphones, im mostly doing this to learn and teach myself so it isnt urgent but i need help to continue any further. thank you
Same problem for me. Because the device has good value for the money it would be nice someone can help us here.
Further this device seems to be full android treble conform I like to know how benefit from this circomstance.
I have LG K40 LM-X420EMW with dualsim.
Thanks for every hint!
@blanksus
IIRC an Android user can not unlock the bootloader without first OEM unlocking, because without this process the device will not accept the bootloader unlocking command.
jwoegerbauer said:
@blanksus
IIRC an Android user can not unlock the bootloader without first OEM unlocking, because without this process the device will not accept the bootloader unlocking command.
Click to expand...
Click to collapse
OK, but it is not possible to get into fastboot mode to enable the OEM unlocking. I marked the slider in developer option butz still there is no chance to get in fastboot mode.
After command "adb reboot bootloader" the device always reboots in normal system mode.
@baerenbisch
Once you enabled the OEM unlock on your Android, the “unlock ability” flag is set to 1, which allows you to use the
Code:
fastboot flashing unlock
command what unlocks device's bootloader.
BTW: Once you have enabled OEM unlock, it stays on. Even if you do a factory reset, it stays unlocked until the setting is manually altered again by going into the Developer options section.
jwoegerbauer said:
@baerenbisch
Once you enabled the OEM unlock on your Android, the “unlock ability” flag is set to 1, which allows you to use the
Code:
fastboot flashing unlock
command what unlocks device's bootloader.
BTW: Once you have enabled OEM unlock, it stays on. Even if you do a factory reset, it stays unlocked until the setting is manually altered again by going into the Developer options section.
Click to expand...
Click to collapse
Hm,
may be it is "allowed" to unlock but in the "LG K40 (LM-X420EMW) real world" it is not possible.
You dont reach fastboot mode which could enable using the order you proposed.
Device reboots into standard mode instead of wanted fastboot mode after sending "adb reboot bootloader"
I think thats the problem.
Code:
[email protected]:/# adb devices
List of devices attached
LMX4205P4TU4S4HEOJ device
[email protected]:/# adb reboot bootloader
[email protected]:/# fastboot flashing unlock
< waiting for any device >
^C
[email protected]:/#
OK, good news. One can get root with this method:
https://forum.xda-developers.com/android/development/amazing-temp-root-mediatek-armv8-t3922213
Works for LG K40 (LM-X420EMW) Android 9 Kernel 4.9.117 Patch Level January 1, 2020 Build Nr. PKQ1.190522.001 Software-Vers. V20d-EEA-XX
baerenbisch said:
OK, good news. One can get root with this method:
https://forum.xda-developers.com/android/development/amazing-temp-root-mediatek-armv8-t3922213
Works for LG K40 (LM-X420EMW) Android 9 Kernel 4.9.117 Patch Level January 1, 2020 Build Nr. PKQ1.190522.001 Software-Vers. V20d-EEA-XX
Click to expand...
Click to collapse
Temp root does sound nice, but what can you actually do with it. Can you change the OEM unlock key?
roycrt said:
Temp root does sound nice, but what can you actually do with it. Can you change the OEM unlock key?
Click to expand...
Click to collapse
Device can be bootloader unlocked now. MtkClient on github. I have the Harmony 3 bl unlocked and twrp for it
Can confirm, I was just able to unlock the bootloader with mtkclient and root with Magisk from there.
BenTheTechGuy said:
Can confirm, I was just able to unlock the bootloader with mtkclient and root with Magisk from there.
Click to expand...
Click to collapse
Please elaborate steps taken to unlock bootloader using mtkclient. Thanks
I wrote a guide as part of my porting of postmarketOS to my K40.
LG K40 (lg-mmh4x) - postmarketOS
wiki.postmarketos.org
My mom and some people I know have this smartphone
Standard fastboot commands like fastboot oem unlock and fastboot flashing unlock do not work for me and my friends
I also have this Nokia C01 Plus TA1383 phone and i would really like to know how to unlock the bootloader.
anyone know how to lock the bootloader on the att LG V60 Thinq 5q?
The process is the same i.e., boot into fastboot and issue command for "fastboot oem lock". The only thing that complicates the procedure is that AT&T firmware is not available. Nevertheless you could still give it a shot and see if it works. Ideally it should work but make sure that USB debugging is enabled first.
Royaltiger said:
The process is the same i.e., boot into fastboot and issue command for "fastboot oem lock". The only thing that complicates the procedure is that AT&T firmware is not available. Nevertheless you could still give it a shot and see if it works. Ideally it should work but make sure that USB debugging is enabled first.
Click to expand...
Click to collapse
I explained this on another post how to re-lock it.It works on the AT&T variant with no problem.I have posted backups of the AT&T model with A12 too.It should be fairly simple.
Excellent.
I still can't relock the bootloader on the LG V60 thinQ 5g