[Help] Unlock bootloader in L9 P769 - LG Optimus L9 P760, P765, P768, P769

Hello, I know there are tutorials about unlocking the bootloader, but in the case of the P769, is the most difficult of all, so give you some data to see that tutorial or steps should I take to unlock it without problems:
- L9 P760 T-Mobile, 4.1.2 Jelly Bean, V20H (and says that according to LG software, already has the latest version), root and recovery (CWM)
As I said, I have seen many tutorials, but too confusing, and according to what I read, the V20H is an open verison, and not if I can skip the process of installing the kdz V20B (which looks to open the bootloader)
Please I need to unlock the bootloader, confirming what I want most of all if you need to install v20b kdz or not? or at least a simple tutorial for unlocking, thanks.

kevinrealk said:
Hello, I know there are tutorials about unlocking the bootloader, but in the case of the P769, is the most difficult of all, so give you some data to see that tutorial or steps should I take to unlock it without problems:
- L9 P760 T-Mobile, 4.1.2 Jelly Bean, V20H (and says that according to LG software, already has the latest version), root and recovery (CWM)
As I said, I have seen many tutorials, but too confusing, and according to what I read, the V20H is an open verison, and not if I can skip the process of installing the kdz V20B (which looks to open the bootloader)
Please I need to unlock the bootloader, confirming what I want most of all if you need to install v20b kdz or not? or at least a simple tutorial for unlocking, thanks.
Click to expand...
Click to collapse
I hate to bust your bubble but if your P769 ( USA T-Mobile ) was made after March 2013, if memory serves, the bootloader is NOT unlockable. I think the MetroPCS P769 can be unlocked however but don't quote me on that. The only way, if at all possible, is the lengthy process you've already mentioned. For the P769, there is no such thing as a simple tutorial for unlocking the bootloader. Most of the P769 users, myself included, have moved on to other devices because of the inability to unlock the bootloader.
I should also mention that there are tons of threads related to this. Research and XDA's search feature are your friends. XDA prefers it's members to search and search again before creating redundant or duplicate threads.

shinobisoft said:
I hate to bust your bubble but if your P769 ( USA T-Mobile ) was made after March 2013, if memory serves, the bootloader is NOT unlockable. I think the MetroPCS P769 can be unlocked however but don't quote me on that. The only way, if at all possible, is the lengthy process you've already mentioned. For the P769, there is no such thing as a simple tutorial for unlocking the bootloader. Most of the P769 users, myself included, have moved on to other devices because of the inability to unlock the bootloader.
I should also mention that there are tons of threads related to this. Research and XDA's search feature are your friends. XDA prefers it's members to search and search again before creating redundant or duplicate threads.
Click to expand...
Click to collapse
I understand, I just like to confirm that with the long method (install v20b kdz , wait 30 minutes-1 hour, use the commands in ABD) chance of unlocking the bootloader? O is permanently blocked?
And if it is impossible to unlock, Even I can install roms for phones with locked bootloader?
Now I have understood that it is difficult to unlock in this model, but at least I want to know if there is even a possibility. Thank you

kevinrealk said:
I understand, I just like to confirm that with the long method (install v20b kdz , wait 30 minutes-1 hour, use the commands in ABD) chance of unlocking the bootloader? O is permanently blocked?
And if it is impossible to unlock, Even I can install roms for phones with locked bootloader?
Now I have understood that it is difficult to unlock in this model, but at least I want to know if there is even a possibility. Thank you
Click to expand...
Click to collapse
Yes you can flash ROMs for locked bootloaders assuming you have 2nd-init recovery installed.
The chances of unlocking your bootloader are extremely slim at best.

Related

[Q] How to unlock P769 with no T-Mobile service

I bought a P769 to use internationally and have no T-mobile plan (I use Sprint in the USA). I want to get CM 10.1 on it. What are my options? From what I understand, I need to get the OTA Jellybean update in order to unlock in order to flash CM10.1.
Thanks.
anoob4eva said:
I bought a P769 to use internationally and have no T-mobile plan (I use Sprint in the USA). I want to get CM 10.1 on it. What are my options? From what I understand, I need to get the OTA Jellybean update in order to unlock in order to flash CM10.1.
Thanks.
Click to expand...
Click to collapse
There are plenty of tutorials available. Read a bit.
You will need to have T-Mobile unlock the device for non-T-Mobile sim cards.
anoob4eva said:
I bought a P769 to use internationally and have no T-mobile plan (I use Sprint in the USA). I want to get CM 10.1 on it. What are my options? From what I understand, I need to get the OTA Jellybean update in order to unlock in order to flash CM10.1.
Thanks.
Click to expand...
Click to collapse
You don't need OTA Jelltbean to unlock bootloader and flash CM10.1, but you need a unlock code to unlock the network/SIM lock to use other SIM than T-Mobile. You can buy the unlock code from eBay.
I don't believe P769 can work on Sprint.
qingz said:
You don't need OTA Jelltbean to unlock bootloader and flash CM10.1, but you need a unlock code to unlock the network/SIM lock to use other SIM than T-Mobile. You can buy the unlock code from eBay.
I don't believe P769 can work on Sprint.
Click to expand...
Click to collapse
I already unlocked the phone's SIM for international use. That's not my question. (eBay solution was used). Of course not to be used on Sprint.
Can someone at least point me to which tutorial to follow? I'll tell you what I tried [GUIDE][JB] Unlock Bootloader and FASTER Root L9 Method http://forum.xda-developers.com/showthread.php?t=2221102. When I did the adb reboot oem-unlock command, the phone just restarted. I assumed this was because I have Ice Cream Sandwich which does not have the oem-unlock command.
I am sorry if I am asking a stupid question. I assumed the guides on here required the JB update which does have an unlocked bootloader apparently.
Is this the one to use? http://forum.xda-developers.com/showthread.php?t=2198114. This one suggests that we should wait for JB update. Is there any way to manually install the JB update instead of going through what seems to be a difficult procedure?
As kevev said...
anoob4eva said:
I already unlocked the phone's SIM for international use. That's not my question. (eBay solution was used). Of course not to be used on Sprint.
Can someone at least point me to which tutorial to follow? I'll tell you what I tried [GUIDE][JB] Unlock Bootloader and FASTER Root L9 Method http://forum.xda-developers.com/showthread.php?t=2221102. When I did the adb reboot oem-unlock command, the phone just restarted. I assumed this was because I have Ice Cream Sandwich which does not have the oem-unlock command.
I am sorry if I am asking a stupid question. I assumed the guides on here required the JB update which does have an unlocked bootloader apparently.
Is this the one to use? http://forum.xda-developers.com/showthread.php?t=2198114. This one suggests that we should wait for JB update. Is there any way to manually install the JB update instead of going through what seems to be a difficult procedure?
Click to expand...
Click to collapse
As kevev said, read a bit. Maybe a bit more.
Regarding qingz's answer to your Sprint information it is easily assumed that you were trying to use Sprint since you mentioned it. There are a lot of questions by a lot of people in a wide range of expertise. Always think of how what you ask will be perceived/interpreted by others to get the best answer for yourself.
Keep a humble attitude of learning and you'll go far, if not people won't answer our questions if we come off brash and know-it-all-ish.
To root, I just did using cmahendra's offline flashing method. It is easily on the first page of the L9 forum. It is a beast to accomplish, but go for it. Please note, when you get to step 11 you cannot "sit back with your hands folded behind your head" as it says, you have to go *back* to the original instructions and copy/paste a file. I share this because that part was not clear, and cost me about 5 or 6 hours of time with re-doing the steps over and over again.
Good luck!
Here is a tutorial for unlocking the P769 Bootloader:
http://forum.xda-developers.com/showthread.php?t=2198114
Maybe an easier tutorial(I have not tried this one):
http://forum.xda-developers.com/showthread.php?t=2277639
kevev said:
Here is a tutorial for unlocking the P769 Bootloader:
http://forum.xda-developers.com/showthread.php?t=2198114
Maybe an easier tutorial(I have not tried this one):
http://forum.xda-developers.com/showthread.php?t=2277639
Click to expand...
Click to collapse
Make sure you follow to a tee, read original bl unlock thread and make sure your wifi is on and connected to internet. Wait at least 1 hour before issuing command.

unlocked P768 bootloader before ?!

Hi all,
I did upgrade the 768 to official jellybean (mexico) and has been since trying to unlock bootloader and root but in vain!
all tools or command I use just restart my phone instead of prompting me to press VOL_UP to unlock. I have read about putting phone on (LG mobile/ charge only) and leaving phone running vid on wifi for 30min, but still I get the same result.
So I am here asking if anyone unlocked the 768 before? What exact steps did u do?
Before anyone asks: yes USB debugging is enabled and drivers are installed.
I hope you can help me! thanks!
ahmedz_1991 said:
Hi all,
I did upgrade the 768 to official jellybean (mexico) and has been since trying to unlock bootloader and root but in vain!
all tools or command I use just restart my phone instead of prompting me to press VOL_UP to unlock. I have read about putting phone on (LG mobile/ charge only) and leaving phone running vid on wifi for 30min, but still I get the same result.
So I am here asking if anyone unloced the 768 before? What exact steps did u do?
Before anyone asks: yes USB debugging is enabled and drivers are installed.
I hope you can help me! thanks!
Click to expand...
Click to collapse
Telce Mexico LGP768G V20A kdz isn't unlockable. Try Vietnam LGP768 V20A kdz , you definitely should be able to unlock your bootloader on it.
Lelus said:
Telce Mexico LGP768G V20A kdz isn't unlockable. Try Vietnam LGP768 V20A kdz , you definitely should be able to unlock your bootloader on it.
Click to expand...
Click to collapse
I have LGP768, use Vietnam LGP768 V20A kdz but it couldn't open bootloader, ...
Why unlock bootloader on P768g?
ahmedz_1991 said:
Hi all,
I did upgrade the 768 to official jellybean (mexico) and has been since trying to unlock bootloader and root but in vain!
all tools or command I use just restart my phone instead of prompting me to press VOL_UP to unlock. I have read about putting phone on (LG mobile/ charge only) and leaving phone running vid on wifi for 30min, but still I get the same result.
So I am here asking if anyone unlocked the 768 before? What exact steps did u do?
Before anyone asks: yes USB debugging is enabled and drivers are installed.
I hope you can help me! thanks!
Click to expand...
Click to collapse
Why unlock bootloader on P768g? , why do you want do that?
ahmedz_1991 said:
Hi all,
I did upgrade the 768 to official jellybean (mexico) and has been since trying to unlock bootloader and root but in vain!
all tools or command I use just restart my phone instead of prompting me to press VOL_UP to unlock. I have read about putting phone on (LG mobile/ charge only) and leaving phone running vid on wifi for 30min, but still I get the same result.
So I am here asking if anyone unlocked the 768 before? What exact steps did u do?
Before anyone asks: yes USB debugging is enabled and drivers are installed.
I hope you can help me! thanks!
Click to expand...
Click to collapse
+1 with both Mexican an Vietnam rom V20A
if you wish to root , you do not require unlocked bootloader.
freshbooy said:
+1 with both Mexican an Vietnam rom V20A
Click to expand...
Click to collapse
Look amigo, from what i understand you require to unlock the bootloader only if you want to install custom Roms on your phone and as far as I know there are no such custom Roms for our model p768 because of the 8mp camera, además you dont need to unlock the bootloader to succeed rooting your phone.
I have rooted my phone and did not unlocked bootloader, what i done was reading a lot this 2 guides:
http://forum.xda-developers.com/showthread.php?t=2173465 with this one start following instructions from step 0)
http://www.htcmania.com/showthread.php?t=537162 but since your native language is spanish I recomend this one guide better!
Anyhow here is my email [email protected] and if you like you can add me on skype with this email [email protected] I am Mexican and be more than glad to help rooting your phone.
Saludos!
danywalkert said:
Look amigo, from what i understand you require to unlock the bootloader only if you want to install custom Roms on your phone and as far as I know there are no such custom Roms for our model p768 because of the 8mp camera, además you dont need to unlock the bootloader to succeed rooting your phone.
I have rooted my phone and did not unlocked bootloader, what i done was reading a lot this 2 guides:
http://forum.xda-developers.com/showthread.php?t=2173465 with this one start following instructions from step 0)
http://www.htcmania.com/showthread.php?t=537162 but since your native language is spanish I recomend this one guide better!
Anyhow here is my email [email protected] and if you like you can add me on skype with this email [email protected] I am Mexican and be more than glad to help rooting your phone.
Saludos!
Click to expand...
Click to collapse
that guide is such a hardcore!
as far as i know , unlocking BL let us to install p760 roms on our p768
true that but...
freshbooy said:
that guide is such a hardcore!
as far as i know , unlocking BL let us to install p760 roms on our p768
Click to expand...
Click to collapse
Correct you are amigo, but what i have read is that if you install a custom Rom for p760 on our devices p768 the camera will stop working, so many have tried and cuz of that they went back to stock Rom, do you know if that issue has been solved. ?
danywalkert said:
Correct you are amigo, but what i have read is that if you install a custom Rom for p760 on our devices p768 the camera will stop working, so many have tried and cuz of that they went back to stock Rom, do you know if that issue has been solved. ?
Click to expand...
Click to collapse
i have the same issue i can`t unlock booteloader i have a p768 from iusacell, i hate deply lg roms , i want jelly bam is a great rom but the problem is the bootloader, i tried all of forums jelly bean stock vietnam, telcel and nothing works , even flash jb for p76o but always just reboot anyone whith this model succesfull unlocked?
Guys!, do you know anyone that succeded?
joseghost said:
i have the same issue i can`t unlock booteloader i have a p768 from iusacell, i hate deply lg roms , i want jelly bam is a great rom but the problem is the bootloader, i tried all of forums jelly bean stock vietnam, telcel and nothing works , even flash jb for p76o but always just reboot anyone whith this model succesfull unlocked?
Click to expand...
Click to collapse
Guys, do you anyone that has succeded?, have you read about our devices p768!?, the question remains, what is the point of unlocking bootloader if there are no custom Roms for our devices!!??, I havent read or heard from anyone that they have succeded installing a custom rom witho loosing the camera of the phone, are you willing to sacrifice the camera of your devices!?, there is a way to unlock the booloader of our devices ny the way, it involves going to a stock Rom version that allows BL unlocking and then back the the proper version or the custom Rom , but again and again "8 mp" camera will not work, at least thats what i have read here and there.

[Q]Simplified way to unlock bootloader MS769

I have a LG Optimus L9 MS769 and I have been searching for a very simple way to unlock the bootloader. The only tutorials I could find were very complicated. Is there some type of toolkit that I could download in order to do it ? I have a Nexus 7 and that's how I was able to unlock the bootloader. My device already rooted.
Thanks in advance
eheh you cannot compare the N7 to a crappy LG! Unfortunately no there no tool to do such a thing, but there are some way to flash a modified KDZ that include an unlocked bootloader and the CWM... Follow this guide and choose your KDZ wisely

Probably a stupid question... but.

I bought a LG V30+ (V300) Korean version and I was wondering if it would be possible to flash an international stock rom on it.
Is this possible?
Anybody experience doing so?
Thank you.
papangu said:
I bought a LG V30+ (V300) Korean version and I was wondering if it would be possible to flash an international stock rom on it.
Is this possible?
Anybody experience doing so?
Thank you.
Click to expand...
Click to collapse
There is no chance to fladh anotoher Rom in ours Lg V300k yet. First will be needed to unlock our bootloader (not achieved yet), then TWRP and finally to have suitable ROM's for ours devices.
Step be step, lets be patient
tesifon said:
There is no chance to fladh anotoher Rom in ours Lg V300k yet. First will be needed to unlock our bootloader (not achieved yet), then TWRP and finally to have suitable ROM's for ours devices.
Step be step, lets be patient
Click to expand...
Click to collapse
On LG V20 they flashed another ROM (KDZ) using a custom made LGUP.exe file -- BEFORE the bootloader was unlocked. They did it in order to unlock the bootloader, installed TWRP, then flashed back the orginal ROM while keeping TWRP.
https://forum.xda-developers.com/showpost.php?p=74689131&postcount=123
However that method would only help you (on South Korean variant) if you then had a way to unlock the bootloader AFTER you flashed it.
This "flashing another KDZ variant"method would possibly work on the T-mobile H932 which already has easily unlocked bootloader, but just has most of the ADB flash commands removed. It would temporarily turn the H932 into an LG US998U once that KDZ is available. Install TWRP, flash back to original H932 firmware, while not overwriting the new TWRP recovery.
But doing that on South Korea model won't let you unlock bootloader because your IMEI is ineligible on the LG Developer website, and the bootloader unlock exploit the V20 devs used has been patched.
ChazzMatt said:
On LG V20 they flashed another ROM using a custom made LGUP.exe file -- BEFORE the bootloader was unlocked. They did it in order to unlock the bootloader, installed TWRP, then flashed back the orginal ROM.
Click to expand...
Click to collapse
Shouldn't that be possible on this? Or was there a patched exploit after that? Sounds similar to the G4 if I remember correctly.
20degrees said:
Shouldn't that be possible on this? Or was there a patched exploit after that? Sounds similar to the G4 if I remember correctly.
Click to expand...
Click to collapse
The bootloader unlock exploit they used on the V20 has been patched, but the T-mobile H932 V30 doesn't need a bootloader unlock exploit -- bootloader is easily unlocked. What it needs is a US998U KDZ and a custom made LGUP.exe to allow installing KDZ from another variant. That custom LGUP.exe is what does the magic, but a dev needs to make one that works on the LG V30. Go follow the links I posted.

Should I avoid updating before bootloader unlock/root?

Very happy with my new V30 (H930), and looking forward to rooting it. I don't want to unlock the bootloader until I've had it a few weeks, so was wondering: is there any risk from upgrading the stock OS, that it will become harder to root and to install custom ROMs in the future, or to do any other kind of mod? (I know bootloader unlock will still be possible through the LG website.) Specifically, I now have 10f-222-01, and am now being offered 10g, and I expect it will then ask me to upgrade all the way to Oreo (don't know the version code for that).
Couldn't find any definitive info on this, but I have heard of advice for other phones that upgrading will make things harder or impossible due to encryption/partition changes, and vulnerability fixes etc. so I'm asking just in case.
Thanks
jfl123 said:
Very happy with my new V30 (H930), and looking forward to rooting it. I don't want to unlock the bootloader until I've had it a few weeks, so was wondering: is there any risk from upgrading the stock OS, that it will become harder to root and to install custom ROMs in the future, or to do any other kind of mod? (I know bootloader unlock will still be possible through the LG website.) Specifically, I now have 10f-222-01, and am now being offered 10g, and I expect it will then ask me to upgrade all the way to Oreo (don't know the version code for that).
Couldn't find any definitive info on this, but I have heard of advice for other phones that upgrading will make things harder or impossible due to encryption/partition changes, and vulnerability fixes etc. so I'm asking just in case.
Thanks
Click to expand...
Click to collapse
Yes. For H930, don't upgrade past Oreo 20D or 20R, until you unlock your bootloader. Right now you can manually flash the version you want with full image KDZ, which is superior to partial image OTA anytime.
https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076
While the official website lets you unlock bootloader no matter the version -- IF you have one of the approved models -- you have to waive your warranty. I did that with one of my open market LG US998 V30.
With the WTF bootloader unlock exploit you are not agreeing to waive the warranty. The WTF bootloader unlock exploit is also much easier and faster than the official method. It works on Oreo but starting with firmware which has July 2018 security update, the exploit is patched.
Simple answer is to not yet go beyond H930 20R. You can downgrade back to previous firmware (unless LG also blocks that), but why risk that BEFORE bootloader unlock and root?
After bootloader unlock, you can then update to latest firmware and still keep unlocked bootloader.
And we've talked about this SEVERAL times in Frankenstein thread, the WTF bootloader unlock thread, and I posted it at the top of the H939 Oreo KDZ and US998 Oreo KDZ and H939DS Oreo KDZ threads...
Sent via open market LG US998 V30/V30+
jfl123 said:
Very happy with my new V30 (H930), and looking forward to rooting it. I don't want to unlock the bootloader until I've had it a few weeks, so was wondering: is there any risk from upgrading the stock OS, that it will become harder to root and to install custom ROMs in the future, or to do any other kind of mod? (I know bootloader unlock will still be possible through the LG website.) Specifically, I now have 10f-222-01, and am now being offered 10g, and I expect it will then ask me to upgrade all the way to Oreo (don't know the version code for that).
Couldn't find any definitive info on this, but I have heard of advice for other phones that upgrading will make things harder or impossible due to encryption/partition changes, and vulnerability fixes etc. so I'm asking just in case.
Click to expand...
Click to collapse
If you want to maintain the ability to root then avoid downloading any newer firmware versions than 20B(March 1st Security Update). You can use the LGUP software to flash kdz files containing the updates for your phone. It's best you update manually from Nougat to Oreo with kdz files rather than risk downloading the newest update that will likely fix the bootloader exploit. If you want to root your phone then you might as well go ahead; backup your data and do it.
ChazzMatt said:
Yes. For H930, don't upgrade past Oreo 20D or 20R, until you unlock your bootloader. Right now you can manually flash the version you want with full image KDZ, which is superior to partial image OTA anytime.
https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076
While the official website lets you unlock bootloader no matter the version -- IF you have one of the approved models -- you have to waive your warranty. I did that with one of my open market LG US998 V30.
With the WTF bootloader unlock exploit you are not agreeing to waive the warranty. The WTF bootloader unlock exploit is also much easier and faster than the official method. It works on Oreo but starting with firmware which has July 2018 security update, the exploit is patched.
Simple answer is to not yet go beyond H930 20R. You can downgrade back to previous firmware (unless LG also blocks that), but why risk that BEFORE bootloader unlock and root?
After bootloader unlock, you can then update to latest firmware and still keep unlocked bootloader.
And we've talked about this SEVERAL times in Frankenstein thread, the WTF bootloader unlock thread, and I posted it at the top of the H939 Oreo KDZ and US998 Oreo KDZ and H939DS Oreo KDZ threads...
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Thank you, that's just what I needed. Sorry about repeating the topic - I didn't see those threads, and wasn't aware of the WTF exploit.

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