Root Didn't work LP 5.1 - G4 Q&A, Help & Troubleshooting

Hey guys,
Just tried to root my G4 and had no luck, got to the last step for the tut on here and when you run thecommand for actaully flashing, the "#" just appears within a second and my phone is then stuck on the LG boot screen, followed all the instuctions correctly and even tried using the video tutorial (XDA tut) as well and still have the same issue. What am I doing wrong? My version is the H815 so intl
*EDIT*
Forgot to mention my deive dowsn't show up in the command window when using the command "adb.exe devices" when my G4 is in download mode but shows it when the phone is turned on
Thanks for any help in advance guys

Related

FastBoot Mode

Hello XDA!
A few months ago I won an LG Optimus Me P350 and I recently discovered that no recovery mode.
I tried to follow a tutorial offered by this community and unfortunately I failed in fastboot.
I tried something with cmd and I remain "locked" .. I say that is waiting phone.
And with KDZ ​​not know how well I did, but with 3GQCT Emergency Mode and Select Emergency calls me at a time that does not detect the phone, which is strange .. since it detects the computer ...
Probably a very old version and no firewall or KDZ file rather not be too good.
Let's try a little with KDZ​​, and if you fail I hope to find here a solution posted for you!
I know I can somehow manage to get rid of this problem.
I wanted to install android 7.xx (not sure what version I had) with recovery mode .. but unfortunately went into fastboot.
Thanks in advance!
Which guide did you follow? I compiled the one on XDA Wiki for Optimus Me so I know the ins and outs of flashing this phone. Can you be more specific on what problem did you face?

KDZ file extracts corrupt CAB file

Hello guys,
I upgraded my friend's recently purchased LG Optimus G.
I rooted the phone successfully with TWRP recovery.
I Unlocked the boot loader successfully.
I flashed a custom android 4.3 rom.
The phone was working absolutely fine.
Then, my friend took it home with him, and tried to flash another custom rom (He is a noob).
Now, after rebooting, the phone flashed the 'google' logo with a grey 'unlocked lock' icon and the screen goes blank.
I can not even figure out if the phone is on or not (the soft keys does not light up if I touch them).
After all, I tried to use the UNBRICK method using a guide but the problem is that the software won't proceed after extracting .KDZ file.
I tried downloading .KDZ file using the xda app which asks for phone model and serial number for the download, several times but no success.
I tried downloading the .KDZ file using a URL in which i have to write the IMEI number to get myself a download link. That shows corrupted too.
Can anybody help me to get a working KDZ file?? I think this will get me through the process.
OR
If there is any other possible way, please let me know.
Thanks in advance
bilalraybrig said:
Hello guys,
I upgraded my friend's recently purchased LG Optimus G.
I rooted the phone successfully with TWRP recovery.
I Unlocked the boot loader successfully.
I flashed a custom android 4.3 rom.
The phone was working absolutely fine.
Then, my friend took it home with him, and tried to flash another custom rom (He is a noob).
Now, after rebooting, the phone flashed the 'google' logo with a grey 'unlocked lock' icon and the screen goes blank.
I can not even figure out if the phone is on or not (the soft keys does not light up if I touch them).
After all, I tried to use the UNBRICK method using a guide but the problem is that the software won't proceed after extracting .KDZ file.
I tried downloading .KDZ file using the xda app which asks for phone model and serial number for the download, several times but no success.
I tried downloading the .KDZ file using a URL in which i have to write the IMEI number to get myself a download link. That shows corrupted too.
Can anybody help me to get a working KDZ file?? I think this will get me through the process.
OR
If there is any other possible way, please let me know.
Thanks in advance
Click to expand...
Click to collapse
I had the same problem. Try downloading several KDZ files cause the programm won't download the good one at once. I got mine at the 4th attempt.
bilalraybrig said:
Hello guys,
I upgraded my friend's recently purchased LG Optimus G.
I rooted the phone successfully with TWRP recovery.
I Unlocked the boot loader successfully.
I flashed a custom android 4.3 rom.
The phone was working absolutely fine.
Then, my friend took it home with him, and tried to flash another custom rom (He is a noob).
Now, after rebooting, the phone flashed the 'google' logo with a grey 'unlocked lock' icon and the screen goes blank.
I can not even figure out if the phone is on or not (the soft keys does not light up if I touch them).
After all, I tried to use the UNBRICK method using a guide but the problem is that the software won't proceed after extracting .KDZ file.
I tried downloading .KDZ file using the xda app which asks for phone model and serial number for the download, several times but no success.
I tried downloading the .KDZ file using a URL in which i have to write the IMEI number to get myself a download link. That shows corrupted too.
Can anybody help me to get a working KDZ file?? I think this will get me through the process.
OR
If there is any other possible way, please let me know.
Thanks in advance
Click to expand...
Click to collapse
1: Google logo plus unlock icon seems nexus device. May be he tried to convert it to nexus 4. I never tried it nor know if it requires any different way to get stock, so search.
2: download kdz from here choose 1gb or less kdz.
http://lg-phone-firmware.com/index.php?id_mod=20
Sent from my GT-P3100 using Tapatalk HD
atifsh said:
1: Google logo plus unlock icon seems nexus device. May be he tried to convert it to nexus 4. I never tried it nor know if it requires any different way to get stock, so search.
2: download kdz from here choose 1gb or less kdz.
http://lg-phone-firmware.com/index.php?id_mod=20
Sent from my GT-P3100 using Tapatalk HD
Click to expand...
Click to collapse
Thanks for the help.
I hope this will work
By the way,
What is the problem with greater than 1 GB files?
Just curious
bilalraybrig said:
By the way,
What is the problem with greater than 1 GB files?
Just curious
Click to expand...
Click to collapse
kdz installer we have cant extract files greater than 1.05 GB i do manage to get 1 or 2 files that were 1.08 GB but most wont.
max is 1.05 GB in my experience.
okay, thanks for the information!
Hey! I have done the download, used the update tool in CS_EMERGENCY mode, done with everything. now the phone is stuck on the LG logo..
I put it in recovery mode, and i used the wipe tool which was told in the guide, but the phone again stuck with a lying android bot with an exclamationary sign in a triangle.
What can I do next?
This happens.when you are not reading before. If you would do that,you would see that you need to perform a hard resetafter using kdz updater.
My advice,use the updater again and do a hard reset.on stock it's easy.
Sent from Asylum via LG E975/smart phones,dumb people.
bilalraybrig said:
Hey! I have done the download, used the update tool in CS_EMERGENCY mode, done with everything. now the phone is stuck on the LG logo..
I put it in recovery mode, and i used the wipe tool which was told in the guide, but the phone again stuck with a lying android bot with an exclamationary sign in a triangle.
What can I do next?
Click to expand...
Click to collapse
Don't know what guides you all are using
Only guide you need
1: get kdz 1.05 GB or less for your specific phone
2: using kdz flasher flash the kdz
3: if your phone boots goto backup and reset and do wipe. If not shutdown phone and do hard reset / wipe
4: root your phone And i mean just root your phone.
5: use freegee to unlock boot and get custom recovery. (If you want this)
Sent from my GT-P3100 using Tapatalk HD
U missed the hard reset!! Since kdz is dirty flashing!
This is so frustrating. I've downloaded kdz file so many times from 1.05Gb to a 0.98Gb, none gives a correct extraction in kdz update.

[Q] LG G3 security error

Just got the phone today and successfully rooted it and I wanted to see what this xposed framework stuff was about I installed the experimental version (tbh did really read it was experimental it was on the front page so I thought it was alright) and when prompt to reboot I did, but now when rebooting I can't get passed the Lg secruity error screen I tried re-flashing back to stock using this thread http://forum.xda-developers.com/showthread.php?t=2799647 but nothing happens after I plug my G3 back in it just says ready is there any other way to fix this security error?
edit:found out that my model number is actually the f400s (sorry i'm a phone noob) for anyone else out there trying to find your phone model it's actually behind the battery
Kebito said:
Just got the phone today and successfully rooted it and I wanted to see what this xposed framework stuff was about I installed the experimental version (tbh did really read it was experimental it was on the front page so I thought it was alright) and when prompt to reboot I did, but now when rebooting I can't get passed the Lg secruity error screen I tried re-flashing back to stock using this thread http://forum.xda-developers.com/showthread.php?t=2799647 but nothing happens after I plug my G3 back in it just says ready is there any other way to fix this security error?
edit:found out that my model number is actually the f400s (sorry i'm a phone noob) for anyone else out there trying to find your phone model it's actually behind the battery
Click to expand...
Click to collapse
do you have a picture of the error
suljo94 said:
do you have a picture of the error
Click to expand...
Click to collapse
Again I ended up resolving the issue myself and I do not have a picture of the error but I can describe it. When booting my lg g3 the normal big Lg logo appeared then after a bit a smaller lg logo appeared with the words "security error" under it for those looking for a solution to that problem the thread in the op is the correct action to take to resolve the issue. Note doing that wiped everything on my phone which was not a big deal for me but I had to take my phone back the the carrier to input the configuration to access 4g lte again & it unrooted my phone.
i have this same issue can you tell me how you got around it?
jerimynal wiley said:
i have this same issue can you tell me how you got around it?
Click to expand...
Click to collapse
jerimynal wiley the error you get "secure boot error" is caused by image you are trying to boot not being bumped or not properly flashed. I assume you get this error both while trying to access recovery and OS. If that is the case you should use this guide:
http://forum.xda-developers.com/showthread.php?t=2785089&nocache=1
to flash stock firmware on your device.
But if you have a case where you are able to access your recovery (TWRP I assume) you could use one of the custom images provided here: http://forum.xda-developers.com/lg-g3/development (assuming you have D855 version) . Flash them and use them as OS.
Thanks man. I actually could get into recovery so I just flashed another kernel
Sent from my LG-D850 using XDA Free mobile app
Lg G3 Security Error
Hi everyone.. I have problem with my Lg G3... I rooted my phone and when i make TWRP Reccovery, phone doesnt work.. Its says " LG Seccurity Error" and i can't go into download mode or recovery mode.. And when i connect with USB on my PC, PC cant find this device.. Can anyone help me?
Maryanohr said:
Hi everyone.. I have problem with my Lg G3... I rooted my phone and when i make TWRP Reccovery, phone doesnt work.. Its says " LG Seccurity Error" and i can't go into download mode or recovery mode.. And when i connect with USB on my PC, PC cant find this device.. Can anyone help me?
Click to expand...
Click to collapse
Same here..

[Solution] if you flashed the wrong firmware on your LG G2

First of all I want to Thank cybertag (a member at reddit.com) whose help made me find this solution. And sorry if my English is not good, it is not my first language. As I don't have enough posts here, XDA restricts me to post external links so this is the best I could do. I will add links to the files needed once i am allowed.
A few days ago I was tinkering with after my lg g2 ls-980, the sprint version of lg g2, rooted but no custom recovery installed and I made my first mistake of changing the model number from ls-980 to D802 in built.prop file thinking that it will only change the model number shown in the hardware information and restarted the phone. Once my phone booted up after that restart everything was crashing. There was a huge number of crash reports popping on the screen and I was not able to use anything. So I downloaded the .tot files of the stock firmwares LS980ZVC and LS980ZVE (don't know why but I downloaded both) along with the .dll file needed to flash the firmware for ls980 and when I tried to flash the firmware booting the phone in download mode and using the LG Flash tool but it gave me an error saying that the firmware does not match with model number of my phone. Both firmwares gave the same error. My phone and the flash tool both were thinking it was D802 while it was not.
Now i made my second mistake and downloaded the stock firmware for D802 and flashed it using LG flash tool. The firmware was flashed successfully without any error, but when the phone booted up after the flash the touch screen was behaving funny and phone restarted every 15-20 seconds because this firmware was not meant to be used with LS-980. I was unable to do anything the way touch screen was behaving.
I spent most of my time for the next few days googling for the solution and searching on XDA and also on reddit. I found multiple threads reporting that a generic no-check DLL file is the savior in this situation, but when I tried to run it I get continuous errors telling me the following: "CrossDL [D8012] to [LS-980]". Then i found this thread by cybertag on reddit which lead me to the right direction. It suggested to hex edit the .tot file for ls-980 so that the flash tool thinks that it is for D802. So I grabbed a hex editor and found the first mention of LS-980 and changed it to D802, saved the file and tried o flash it but it was still giving different errors. Then someone suggested it only works if you edit the .tot firmware in linux based OS. So i installed ubuntu OS on a virtual machine and tried editing the firmware in that OS using Bless Hex editor, still no success in flashing. Then I tried editing in pinguy OS but in vain. Then I found FlexHex for windows and used it for editing the LS980ZVC.tot firmware did the same thing, found the first mention of LS-980 and changed it to D802, saved the file, flashed it and bingo! the flash tool gave no error this time and flashed the phone successfully.
Now there was another problem. When the phone rebooted after flashing the firmware it got stuck on LG logo forever. And when I tried to boot it into download mode, the download mode was gone and it took me to fastboot mode. The phone was stuck in bootloop and there was no download mode anymore. Now after more searching i found a method to resolve this problem. Downloaded the aboot.img and laf.img partitons for LS980ZVC and flashed both using fastboot commands. Tried to boot into the download mode again and it worked and i was in download mode one again. When I checked the phone model was changed back to LS-980, the original one. Flashed the LS980ZVE firmware from original .tot file as it was the latest version available to date and it flashed without any error. When the phone rebooted after completing the flashing process, it was as good as new, up and running the original stock kitkat rom for this model. Tested and tried everything and never noticed any issue.
Thank you @tauheed that will help a lot of people I'm sure.
Thank reddit member cybertag out there to.
please help
Hi sir!
i think i got just the problems with yours, but i not sure how to get my phone into fastboot mode no matter how many i press the [power+volume up] it just start up and stay at lg logo screen forever.
Can you explain how to get my LS980 into fastboot mode step by step, if i can put it in fastboot mode, i think i can fix it. please help
secret.animal said:
Thank you @tauheed that will help a lot of people I'm sure.
Thank reddit member cybertag out there to.
Click to expand...
Click to collapse
First of all, i'm sorry for my bad english.
i having the same problems as him. my LS980 is stuck at LG logo screen (not rebooting) it just stay there forever!
when i tried to boot it into download mode, at first i thought gonna successfully boot into download mode, but it DID NOT.
Please refer to my picture below to get better understanding what i'm trying to explain and again i'm sorry for my bad english.
My pc can detect my LS980 but not in fastboot mode, i mean if i try to boot into download mode then my pc won't detect it.
I really NEED some videos if possible of how to fix this, a million thanks!!!
[email protected] said:
Hi sir!
i think i got just the problems with yours, but i not sure how to get my phone into fastboot mode no matter how many i press the [power+volume up] it just start up and stay at lg logo screen forever.
Can you explain how to get my LS980 into fastboot mode step by step, if i can put it in fastboot mode, i think i can fix it. please help
Click to expand...
Click to collapse
what happens when you try to boot in to download mode?
it it stuck at download mode or something else happens?
Looks to be stuck with a broken download mode. His laf partition is broken.
tauheed90 said:
what happens when you try to boot in to download mode?
it it stuck at download mode or something else happens?
Click to expand...
Click to collapse
its just stuck like the picture that i attached below . it won't go any future.
Can you help fix this?
or what can i do to fix it?
i got a LG G2 LS980
secret.animal said:
Looks to be stuck with a broken download mode. His laf partition is broken.
Click to expand...
Click to collapse
hi m8, do you know how can i fix this?
please i really need some HELP over here, thank for reply
I'm looking into seeing how we can replace that laf partition that is broken. So we can fix this.
secret.animal said:
I'm looking into seeing how we can replace that laf partition that is broken. So we can fix this.
Click to expand...
Click to collapse
it sound like i'm in big problem right?
i'm total noob with this, sorry.
[email protected] said:
it sound like i'm in big problem right?
i'm total noob with this, sorry.
Click to expand...
Click to collapse
No problem, this is how we learn. One from the broken side and one from the fixing side. It's all good.
[email protected] said:
it sound like i'm in big problem right?
i'm total noob with this, sorry.
Click to expand...
Click to collapse
the only possible option is to flash the aboot.img and laf.img partitions. But we need to find a way to do so in your phone's current state. Things can be a lot easier if you could manage to get into fastboot mode.
tauheed90 said:
the only possible option is to flash the aboot.img and laf.img partitions. But we need to find a way to do so in your phone's current state. Things can be a lot easier if you could manage to get into fastboot mode.
Click to expand...
Click to collapse
Please help me out! i already bricked it for nearly 1 month already T_T
helo sir i am on window 7 i dont know how to edit modal number from hex can you please post a screen shots, i will be thanful to you plz sir help me otherwise my best will be just a plastic piece
i have wrongly flash lg g2 ls980 to d802 because the phone was refurbished
now phone is reboot and imei and baseband is unknown
so i am trying ur method but what do i have to edit in the hex editor
in flastool imei is getting shown but flash fails
please reply need urgent help
secret.animal said:
No problem, this is how we learn. One from the broken side and one from the fixing side. It's all good.
Click to expand...
Click to collapse
dear sir, i have lg d802 or d800, i dont know exactly bcoz seller sold me as d802.when i flashed stock kdz of d802 , its touch screen start weired behaviour, sometime stop reposnding or some thime i touch some thing else but some thing else selected.to check i opened the back of phone, its touch strips were written with d800 /801 and 803. but d800 was marked.so i flashed d800 tot file.after flashing phone boot but in boot loop.i can enter stock recovery to hard reset, but after that still boot loop.i can access download mode, but pc do not detect phone in download mode.when i power on in normal way than device manager shows modem and lg android net. but in download mode no detection.
what can i do in this situation? do this short capacitor method will work for me? or what else i can do to get it to life again,
plz waiting for response . it is same like attached pic of download mode in starting page of this thread
afzalcool said:
i have wrongly flash lg g2 ls980 to d802 because the phone was refurbished
now phone is reboot and imei and baseband is unknown
so i am trying ur method but what do i have to edit in the hex editor
in flastool imei is getting shown but flash fails
please reply need urgent help
Click to expand...
Click to collapse
majid.ayub999 said:
helo sir i am on window 7 i dont know how to edit modal number from hex can you please post a screen shots, i will be thanful to you plz sir help me otherwise my best will be just a plastic piece
Click to expand...
Click to collapse
You have to edit the first mention of the model number in the hex editor. Don't mess with anything else.
i was able to sole the problem.
have you found any solution?
[email protected] said:
its just stuck like the picture that i attached below . it won't go any future.
Can you help fix this?
or what can i do to fix it?
i got a LG G2 LS980
Click to expand...
Click to collapse
Have you found any solution to this problem?
I am the same problem as yours with another phone I have. It is a D800 which was wrongly flashed to D802. After flashing the D800 firmware with the model name edited, it is stuck on LG logo and it won't go to download mode either.
Not yet. I'm still waiting...total dead phone now.

Stuck at the download mode on my LG G3 F400L

Hey everyone. I hope all of you are fine. I was playing with my phone, rooted and installed twrp correctly. After that I thought of installing cloudy G3 2.5. For this, unfortunately I didn't watch any tutorial. I just simply placed the zip file in the device (not in any folder) and rebooted in recovery mode. There, I tapped Install and located the zip file. The process started. Everything was going fine. But when the process finished, it gave an error msg (don't remember exactly what it said). After that whenever I tried to reboot the phone, it kept on saying "kernel crashed", " press up for dload and down to reboot".
When I tried to flash it using LG flash tool, the download menu changed to English (previously Korean). And when I tried to flash the stock firmware for LG G3 F400L using LG Flash Tool, it gave an error of wrong device model (saying, cloudy g3 2.5 D855). Then I tried to flash D855 European ROM but the same error persisted. From now on, every time I connect a USB cable to my device or even try to turn it on, it automatically opens that Download Mode (English).
Kindly help me...
A sincere thanks for reading this.
Have a good day.
oh my this is also happening to me now, problem is i just stuck in the small box stating download mode but reboot then never been to the download mode instaed
does your phone fix?
Yes. The problem that I faced was fixed... All thanks to a post I found on a website lgg3root.... Text me on Facebook if you want direct link to that post as I can't upload an outside link in the thread...
Facebook username, "imjbaig".

Categories

Resources