LG K10 420n can't enter fastboot - LG K10 Questions & Answers

Dear all,
I have spent many hours today trying all around guides on how to unlock bootloader, root, and then flash lineage OS 15 to my LG k10 420n. Can't unlock bootloader, no matter what. here are the things I've tried:
All the combinations of buttons on other threads during booting.
Have several pc tools to give me root access or unlock bootloader to no avail.
Somewhere I found that security patch 2017 had an issue with superSU, and so I have flashed the oldest stock rom available, which brought security patch down to 2016.
My problem is that the device is not listed with the `fastboot devices` command (while I can do anything I like with adb.).
I'd love to provide you with every piece of information that I have, it's just too much to list it all at once, and also to avoid unecessary flooding.
Thanks in advance!

Related

14 day wait for bootloader unlock?

Is this possible to skip? Can we unlock with adb / fastboot or is that not going to work / likely to brick the device?
Unlock Resposibly
adb or fastboot unlock will only work after 14 days of waiting. It is to allow you to rethink your decision. OEM unlock will obviously void your warranty and applications like Android pay will stop working. Trust me, relocking will not be easy as unlocking. Even if you somehow get it relocked, Android pay will still not work for you. So, unlock responsibly.
Thanks for the reply . I'm really doing it for root access, modifying the hosts file, changing fonts and boot animation, but the latter two aren't necessities.
I don't use Android pay (don't use contactless) but I am a little concerned that online banking will cease to function when the phone is on a stock firmware and rooted. If there's an effective system wide ad blocker I may use that instead.
For hosts file, I recommend dns66, available through fdroid, no root required.
i have found that many banking apps will continue to work with root provided you also have a hide root app installed but android pay is a no go.
jk77 said:
For hosts file, I recommend dns66, available through fdroid, no root required.
Click to expand...
Click to collapse
Thanks! First I've heard of fdroid, looks very useful, and dns66 does exactly what I was planning on doing.
Need to put Android 10 so only way is custom ROM. How to put custom rom without OEM unlock?
cutom rom
Albert612103 said:
Need to put Android 10 so only way is custom ROM. How to put custom rom without OEM unlock?
Click to expand...
Click to collapse
there is no way. Should be rooted
CHEERS
Hello guys.
For those having bootloader unlock server issue (normally everybody), there's a post on the Lenovo forum that gives the origin of the issue:
https://forums.lenovo.com/t5/P2-P2a...-bootloader/m-p/4574568/highlight/true#M12457
In fact, the problem seems coming from an non renewed SSL Certificate in the Lenevo server tracking the OEM Unlocking requests.
The suggestion given by fls2 is to change the date of the P2 phone to a previous date than the 10 July 2019 and the Bootloader Unlocking process should be launched.
That's what I've done with a second P2 I bought that has its bootloader locked.
I set the date to 10th of April 2019 and the phone is now waiting for 14 complete days to engage the OEM Bootloader unlock instead of the usual Lenovo ID error pop-up.
I'll wait for the process to end and see if everything went fine, but it seems that it should be OK as it was with my first P2 phone.
I'll keep you informed if there are some trouble in the process but I stay confident.
In case of success, we should address a very big "thank you" to fls2 for pointing out the issue with Lenovo server.
20 days have passed since registered. Always shows error.
Unable to unlock OEM.
Don't know what to do...
Hello everyone,
As I have written in my last post, I've used the suggested method of manually changing the date to one before the 10th July 2019.
So, as I've said, the 14 days counter has been correctly launched and I was able to see the counter evolving from 14 to 2 days.
Then I was a little bit busy and I haven't followed my P2 phone until last week-end.
When I tried to consult the status of the bootloader unlocking request, I had the same annoying pop-up telling me there's a problem with my account.
The date was fixed to 10th of April 2019 manually, but still had connection error pop-up.
I then tried to switch to current day date of the week-end (29/02/2020), and tried to check again the bootloader unlock status: Annoying pop-up again.
Before giving up, I've tried putting another date manually but at least 14 days after the one I've put when I made my first request and still before the 10th of July 2019, so I switched to 10th of June 2019.
This time, when I checked the bootloader unlock request, I've got no error and had a positive bootloader unlock message that told me the phone is going to reboot and erase all user data that are present.
The phone has rebooted in Fastboot mode and I was able to send the awaited "fastboot oem unlock" command from my laptop.
I didn't try to reboot the system and see if the fastboot command will work if I go in fastboot mode by myself, because I didn't want to miss the opportunity to succeed in unlocking the bootloader of this phone.
I let the people brave enough to try if they feel comfortable with that.
Now this phone is working with an AICP Android Q ROM that seems very stable.
@ Albert612103
20 days have passed since registered. Always shows error.
Unable to unlock OEM.
Don't know what to do...
Click to expand...
Click to collapse
Try to follow my steps.
There's no reason I've succeded and you cannot.
I'm sure you'll be able to unlock your bootloader as I've done.
If you have some question, just feel free to ask.
I'm trying to unlock the bootloader too. Is there any way to avoi waiting 15 days? I'm still using the Stock Rom by default (Android 6).
According to the last comment in the Lenovo forum, the changing date no longer works.
Thanks
xavicosco said:
I'm trying to unlock the bootloader too. Is there any way to avoi waiting 15 days? I'm still using the Stock Rom by default (Android 6).
According to the last comment in the Lenovo forum, the changing date no longer works.
Thanks
Click to expand...
Click to collapse
AFAIK, no. You need to wait that. Also there is bigger problem than that which its the unlocking bootloader (server problem). Just you can read above, for no reason you cannot unlock bootloader.
mahmutpekkara said:
AFAIK, no. You need to wait that. Also there is bigger problem than that which its the unlocking bootloader (server problem). Just you can read above, for no reason you cannot unlock bootloader.
Click to expand...
Click to collapse
@mahmutpekkara somehow I managed to unlock the OEM. It took me few attempts tho, so I'm guessing their servers are not always operating. No needed to change the date in my case.
Only 3 days remaining, so hopefully everything goes well.
So, after 15 days waiting I was getting the message ''Server sync data success'. I managed to get thru by signing off and signing in again with another account. Flashed properly and enjoying Syberia OS

can't boot bootloader android

Hello,
I can't boot into bootloader on my Samsung galaxy J4 phone. I enabled Developers mode I enabled "OEM unlock" from DEVELOPERS OPTIONS restarted the phone which made a factory reset I checked again on DEVELOPERS OPTIONS found "OEM unlock" still enabled under it Bootloader is already unlocked, using ADB on linux I made sure the device was connected with
Code:
adb devices
I tried booting into bootloader via ADB on linux
Code:
adb reboot-bootloader
and
Code:
adb reboot bootloader
it reboots into the Android OS. I tried to boot via poweroff+vol up+homescreen I was on recovery mode and when I navigate to reboot into bootloader while USB is connected and when USB is not connected it simply reboots to the OS, so after multiple boots into the OS via reboot into bootloader I tried
Code:
fastboot devices
nothing appeared . I tried removing SIM cards and sdcard but still same problem.
what is the problem exactly? and how to fix it? I appreciate
Phone Model : Galaxy SM-J400F/DS
Baseband version : J400FXXU2ARI2
Android security patch level : November 1, 2018
Wrong thread to post in. But I would do research on your device to see if there are ways to bootloader unlock and if a twrp is available for your j4
You've posted to the specific device forum for the HTC One (M8). Don't know if this was intended or not (I'm thinking, probably an accident). But bootloader unlock methods, problems, fixes, etc. are very device specific. And following methods or advice intended for a different device will probably not work, or may even damage your device. So you need to search for your particular device (Samsung J4) forum section.
For instance, bootloader unlock for HTC device is completely different from Samsung.
redpoint73 said:
You've posted to the specific device forum for the HTC One (M8). Don't know if this was intended or not (I'm thinking, probably an accident). But bootloader unlock methods, problems, fixes, etc. are very device specific. And following methods or advice intended for a different device will probably not work, or may even damage your device. So you need to search for your particular device (Samsung J4) forum section.
For instance, bootloader unlock for HTC device is completely different from Samsung.
Click to expand...
Click to collapse
Is it similAr to j415f
J400f is similar to j415f exynos or not?
Reddyravindra said:
Is it similAr to j415f
J400f is similar to j415f exynos or not?
Click to expand...
Click to collapse
How about reading the post you just quoted???

New to Rooting

Im super new to rooting in general, and the guides here have so much information and I don't really get most of it
My LG G4 is Verizon on VS9862BA on Android 6.0.
So I have a lot of questions:
Whats the difference between unlocking the bootloader and rooting
What comes first unlocking the bootloader or rooting
How do I get TWRP on my phone and do I get it first before unlocking the bootloader and rooting
What are KDZ / TOT, ARBS, Salt, QFIL and Bootloader stacks, flashing, fastboot mode, fastboot flash, fastboot boot
(Was looking at steadfasterX unlock guide and I have no clue what any of these things mean)
I have no clue what to do but I'm really interested in rooting, just super confused on everything and trying to be careful
V1ruz_ said:
Im super new to rooting in general, and the guides here have so much information and I don't really get most of it
My LG G4 is Verizon on VS9862BA on Android 6.0.
So I have a lot of questions:
Whats the difference between unlocking the bootloader and rooting
What comes first unlocking the bootloader or rooting
How do I get TWRP on my phone and do I get it first before unlocking the bootloader and rooting
What are KDZ / TOT, ARBS, Salt, QFIL and Bootloader stacks, flashing, fastboot mode, fastboot flash, fastboot boot
(Was looking at steadfasterX unlock guide and I have no clue what any of these things mean)
I have no clue what to do but I'm really interested in rooting, just super confused on everything and trying to be careful
Click to expand...
Click to collapse
so rooting the latest FW requires unlocking the bootloader.
unlocking the bootloader allows you to run unsigned code on boot (for an example rooted FW or custom FW)
exclamation for rooting:
so there are different types of user privileges on Android or any Linux. the most important one is root. the root user has full read/write access to the / directory (so pretty much everything ) and can run any command since they have all the privileges. The user you are login to on android does not come with root privileges. so what the term rooting your phone means you have the capability to call an app to run under the root user. (if this helps, its similar to running the sudo command on Linux or for windows granting an app administrator access to run. )
kdzs are the FW files that you flash from download mode. you don't have to touch KDZ / TOT, files at all if you are on the latest FW or when you unlock it since you will have TWRP.
salt is the tool used to unlock the bootloader. if you don't have Linux use FWUL
fastboot mode is a bootloader mode where you can flash files and do other stuff.
you don't have to even mess with bootloader stacks since you are on the latest FW.
hopefully that helps, its kind of hard to answer everything in one shot so if you still need help just quote me.

[CLOSED]Force Unlocking Bootloader on Nokia 6.1

Hey,
I have been searching for an answer to this for quite a while, and I've found some information. Before you start bashing me in the comments, I do know that Nokia has disabled unlocking bootloaders on certain devices. My question is, is there 100% no (free) way of unlocking the bootloader on my phone, or just in general to get root. I am running Android 9, and I do have adb (of course).
Thank!
Also interested in this ... Don't want to let someone mess around with my phone .. used to do it myself
Short answer, no. By the looks of it there are currently no free tools, etc.
Long answer, yes but not accessible for us currently. There are ways to gain root access/unlock the bootloader on every device. Currently there are some unpatched exploits (that sometimes cannot even be fixed) in the Linux and Android system that are able to root devices, etc. The last few years showed that Baseband (proprietary Qualcomm code), the RAM (Rowhammer, Rampage) and other device features are attackable. Maybe KingoRoot or someone else might implement these exploits in the following years, and we get a free utility to root devices.
Bootloader unlock for Nokia phones!
​
_xNyx_ said:
Hey,
I have been searching for an answer to this for quite a while, and I've found some information. Before you start bashing me in the comments, I do know that Nokia has disabled unlocking bootloaders on certain devices. My question is, is there 100% no (free) way of unlocking the bootloader on my phone, or just in general to get root. I am running Android 9, and I do have adb (of course).
Thank!
Click to expand...
Click to collapse
Visit the link below
https://www.nokia.com/phones/en_int/bootloader/
I'm quite new to this rooting stuff, therefore a few stupid questions:
I read that with old security patches, before Aug 2018 (was that still Android Pie?) it was possible to unlock the bootloader. Isn't there some way to downgrade the security patch to a version allowing to unlock?
Is it at all required to unlock the bootloader in order to be able to install LineageOS as provided by this link?
many thanks!
EDIT: Can you recommend any working alternative way to unlock the bootloader?
Frozen_Duck said:
Short answer, no. By the looks of it there are currently no free tools, etc.
Long answer, yes but not accessible for us currently. There are ways to gain root access/unlock the bootloader on every device. Currently there are some unpatched exploits (that sometimes cannot even be fixed) in the Linux and Android system that are able to root devices, etc. The last few years showed that Baseband (proprietary Qualcomm code), the RAM (Rowhammer, Rampage) and other device features are attackable. Maybe KingoRoot or someone else might implement these exploits in the following years, and we get a free utility to root devices.
Click to expand...
Click to collapse
belzebubi said:
I'm quite new to this rooting stuff, therefore a few stupid questions:
I read that with old security patches, before Aug 2018 (was that still Android Pie?) it was possible to unlock the bootloader. Isn't there some way to downgrade the security patch to a version allowing to unlock?
Is it at all required to unlock the bootloader in order to be able to install LineageOS as provided by this link?
many thanks!
EDIT: Can you recommend any working alternative way to unlock the bootloader?
Click to expand...
Click to collapse
August 2018 would have been Oreo and YES currently you have to roll back to unlock bootloader. It's a PAID service to have this done. @singhnsk can aid you in doing this service. I as well as many others have used him to unlock our devices. You will have to use Team Viewer and let him remotely do his work.
Good luck!!
And actually, the main question is how to unlock? Bootloaderunlocker.apk dont work, it say me "google service error" help me please
OEM unlocked for Nokia 7.1 and for all nokia
Hi guys I am new here also searching for unlocking the bootloader for Nokia I read this method somewhere tried my self with some tweaks it worked
1. Open the developer option and turn it off.
2. Again turn it on but skip the on screen option for ok and cancle again turn the developer option off.
3.now trim developer option again click ok and as soon as you do it click on oem unlocking it will show a message to reboot the mob do it.
4. After rebooting you will see the oem unlock is still off just step 1,2and 3 vola bootloader is unlocked now
Comment if it works
Thanx
Sourabh22kori said:
OEM unlocked for Nokia 7.1 and for all nokia
Hi guys I am new here also searching for unlocking the bootloader for Nokia I read this method somewhere tried my self with some tweaks it worked
1. Open the developer option and turn it off.
2. Again turn it on but skip the on screen option for ok and cancle again turn the developer option off.
3.now trim developer option again click ok and as soon as you do it click on oem unlocking it will show a message to reboot the mob do it.
4. After rebooting you will see the oem unlock is still off just step 1,2and 3 vola bootloader is unlocked now
Comment if it works
Thanx
Click to expand...
Click to collapse
You da Man! I had to try it a few times, but it worked.
Just to clarify point 3.
3. Now turn developer option on again click OK and as soon as you do you will be returned to previous menu. Immediately click "OEM unlocking", it will show a message and ask your password, (if set), and work.
Thread closed as a subject matter related thread already exists:
How to Unlock Bootloader & Root Nokia 6.1?
Hello Guys! anybody know how to unlock this phone TA-1089 and root? currently it's running on latest software update Android 9 ( January Patch) kindly help please.
forum.xda-developers.com
Regards
Oswald Boelcke
Senior Moderator

Re-locking Bootloader

Hello!
So, I've purchased a T-Mobile LG G8 ThinQ phone for use in Canada and wanted to remove the T-Mobile splash.
After reading a bit on the forums here, it seems like it'll be too complex for someone like me. (I'm lazy)
So, I uninstalled Magisk, which supposedly uninstalls root and I'm looking to relock my boot loader.
Just I'm having a hard time getting back into bootloader with the vol- and power button method, and using adb to reboot into bootloader doesn't seem to give the desired results.
The phone just reboots like normal with the unlocked bootloader warning.
Reason I wanna relock it is so that I can use Android Pay again and using Magisk Hide or the alternative would require them to give a guaranteed result.
One day it could be patched and I won't be near a PC to resolve the issue and I personally don't like carrying my wallet.
cheddarest said:
Hello!
So, I've purchased a T-Mobile LG G8 ThinQ phone for use in Canada and wanted to remove the T-Mobile splash.
After reading a bit on the forums here, it seems like it'll be too complex for someone like me. (I'm lazy)
So, I uninstalled Magisk, which supposedly uninstalls root and I'm looking to relock my boot loader.
Just I'm having a hard time getting back into bootloader with the vol- and power button method, and using adb to reboot into bootloader doesn't seem to give the desired results.
The phone just reboots like normal with the unlocked bootloader warning.
Reason I wanna relock it is so that I can use Android Pay again and using Magisk Hide or the alternative would require them to give a guaranteed result.
One day it could be patched and I won't be near a PC to resolve the issue and I personally don't like carrying my wallet.
Click to expand...
Click to collapse
I'm not an expert (or even that experienced with phone flashing), but a li'l Googling gives this result. The relevant part being:
Re-locking the bootloader​To re-lock the bootloader:
For newer devices (2015 and higher):
fastboot flashing lock
For older devices (2014 and lower):
fastboot oem lock
Note: Re-locking the bootloading on a Motorola Xoom erases all user data (including the shared USB data).
blaacksheep said:
I'm not an expert (or even that experienced with phone flashing), but a li'l Googling gives this result. The relevant part being:
Re-locking the bootloader​To re-lock the bootloader:
For newer devices (2015 and higher):
fastboot flashing lock
For older devices (2014 and lower):
fastboot oem lock
Note: Re-locking the bootloading on a Motorola Xoom erases all user data (including the shared USB data).
Click to expand...
Click to collapse
Sure, I'll try that if you can help me figure out why I can't get back into the bootloader.
You need to use QFIL to put flash back the engineering abl file to get fastboot. Then you can run the command.
armodons said:
You need to use QFIL to put flash back the engineering abl file to get fastboot. Then you can run the command.
Click to expand...
Click to collapse
Thank you! That worked, I was flashing abl_a and abl_b with the backup images to see if that did anything.

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