Develop Bugs

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?

Help me unbrick Optimus G

Hi,
Yesterday i tried to get recovery mode on my phone to install new version of android (korean version of Optimus G). So i tried by reading topic: http://forum.xda-developers.com/showthread.php?t=2249500
After i had 85% in LGNPST i disconnected usb cable from phone and my phone bricked. At first i had bootloop and i could only get into recovery mode. Now i have only download mode... I tried to unbrick following that topic: http://forum.xda-developers.com/showthread.php?t=2010624
So in that app Original LG Software i type Model of phone: F180K (like it is on box of my phone) and my IMEI number. After download a almost 1,2GB file with .kdz i set my phone for download mode and any program cant unpack it. Always ERROR -.- http://img6.imageshack.us/img6/2136/beztytuukvn.jpg
I tried to unpack it with LG-P970 ROM COVERTER 2.1 and R&D Test Tool. Nothing works! I have Windows Enabler 1.1v and its ON.
Is there any other way to fix my phone? Help me please.
EDIT:
Can be closed. @autoprime from #lg-optimus-g irc helped me thx :*
Download:
- LGE975AT-00-V10b-EUR-XX-FEB-13-2013_0.tot from http://downloads.codefi.re/shelnutt2/optimusg/e975
- LGNPST
Solve:
-Turn your LG into download mode
-Change LGE975AT-00-V10b-EUR-XX-FEB-13-2013_0.tot to LGE975AT-00-V10b-EUR-XX-FEB-13-2013_0.bin
- Use LGNPST to install that file on your LG
Phone should turn off on 67% and if you will have bootloop you should press Vol- and Power to factory reset.

I think the KDZ is corrupt. Try downloading another. There is a thread with stock roms in dev section i think. After you flash the KDZ you might run into a bootloop. If you do, turn off your phone and press vol down and power you should get the choice to do hard reset. BEWARE! This will ERASE EVERYTHING ON YOUR SDCARD!
Good luck /Robert
Sent from my LG-E975 using xda app-developers app

Thanks but i've already downloaded that .kdz sevral times and it still doesn't work. I have access now to download mode and recovery mode. Just need some kind of ROM that will install on my LG. I had already 2 versions but everytime in recovery install was stopped and i saw image of broken droid :<

[Q] G3 - Secure booting error, Dead; No recovery, No Download

Hey all,
I restarted my phone yesterday and it was stuck in a boot loop for some reason. I tried to factory reset, but doing so still resulted in a boot loop. I then proceeded to attempt to flash stock, but the flash tool crashed while during the process. When I try to boot to download mode now, I get "Secure booting error, Error!: Boot Certifcation Verify". I know this also happens on the G2, and I know the process for fixing it. But when trying to use the same method with the G3, I can't access my filesystem from Linux. Any help? Thanks.

helios4695 said:
Hey all,
I restarted my phone yesterday and it was stuck in a boot loop for some reason. I tried to factory reset, but doing so still resulted in a boot loop. I then proceeded to attempt to flash stock, but the flash tool crashed while during the process. When I try to boot to download mode now, I get "Secure booting error, Error!: Boot Certifcation Verify". I know this also happens on the G2, and I know the process for fixing it. But when trying to use the same method with the G3, I can't access my filesystem from Linux. Any help? Thanks.
Click to expand...
Click to collapse
were you able to fix this? I have the same problem and unable to find any solution.

xlnzee said:
were you able to fix this? I have the same problem and unable to find any solution.
Click to expand...
Click to collapse
1) Which exact model do you have?
2) Where are you from?
3) Which exact stock version did your phone come with?
4) What did you try to flash exactly, and how did you do it?
Let me know all this so I can see if I can help you :good:

Hey!
1) Which exact model do you have? - LG G3 D855
2) Where are you from? - India
3) Which exact stock version did your phone come with? - had installed earlier "LGD855AT-00-V10e-EUR-XX-JUL-08-2014-32G+0" TOT
4) What did you try to flash exactly, and how did you do it - Updated to Lollipop via kdz, a few things were broken, wanted to revert back to TOT. when the process started in download mode, got an error and then "Secure booting error, Error!: Boot Certifcation Verify".
If I press volume up and plug in then it gooes to qhsusb_bulk on device manager. it gets detected under Ubuntu VM, but dosent show th drives. thats my story.
---------- Post added at 05:49 PM ---------- Previous post was at 05:43 PM ----------
rodrigofd said:
1) Which exact model do you have?
2) Where are you from?
3) Which exact stock version did your phone come with?
4) What did you try to flash exactly, and how did you do it?
Let me know all this so I can see if I can help you :good:
Click to expand...
Click to collapse
Hey!
1) Which exact model do you have? - LG G3 D855
2) Where are you from? - India
3) Which exact stock version did your phone come with? - had installed earlier "LGD855AT-00-V10e-EUR-XX-JUL-08-2014-32G+0" TOT
4) What did you try to flash exactly, and how did you do it - Updated to Lollipop via kdz, a few things were broken, wanted to revert back to TOT. when the process started in download mode, got an error and then "Secure booting error, Error!: Boot Certifcation Verify".
If I press volume up and plug in then it gooes to qhsusb_bulk on device manager. it gets detected under Ubuntu VM, but dosent show th drives. thats my story.

xlnzee said:
Hey!
1) Which exact model do you have? - LG G3 D855
2) Where are you from? - India
3) Which exact stock version did your phone come with? - had installed earlier "LGD855AT-00-V10e-EUR-XX-JUL-08-2014-32G+0" TOT
4) What did you try to flash exactly, and how did you do it - Updated to Lollipop via kdz, a few things were broken, wanted to revert back to TOT. when the process started in download mode, got an error and then "Secure booting error, Error!: Boot Certifcation Verify".
If I press volume up and plug in then it gooes to qhsusb_bulk on device manager. it gets detected under Ubuntu VM, but dosent show th drives. thats my story.
---------- Post added at 05:49 PM ---------- Previous post was at 05:43 PM ----------
Hey!
1) Which exact model do you have? - LG G3 D855
2) Where are you from? - India
3) Which exact stock version did your phone come with? - had installed earlier "LGD855AT-00-V10e-EUR-XX-JUL-08-2014-32G+0" TOT
4) What did you try to flash exactly, and how did you do it - Updated to Lollipop via kdz, a few things were broken, wanted to revert back to TOT. when the process started in download mode, got an error and then "Secure booting error, Error!: Boot Certifcation Verify".
If I press volume up and plug in then it gooes to qhsusb_bulk on device manager. it gets detected under Ubuntu VM, but dosent show th drives. thats my story.
Click to expand...
Click to collapse
SO, long story short... if you ARE ROOTED; I can save you ... if not..... hmm.. you might be screwed ...
Sorry

rodrigofd said:
SO, long story short... if you ARE ROOTED; I can save you ... if not..... hmm.. you might be screwed ...
Sorry
Click to expand...
Click to collapse
I was rooted before updating to lollipop, then tried to back dowk to KK with TOT and this happened, so I dont think I am rooted any more.

The better question is: do you have TWRP (custom recovery) installed? If you do, your phone can be fixed. If not, you are probably screwed.

Basically it sounds to me like your phone managed to flash the updated Android 5.0 bootloader but didn't update the LAF image (download mode). The old download mode doesn't work on the new bootloader, it gives the error you are experiencing.
Because you still have a LAF partition, and presumably a recovery partition (even if they are not working) you cannot access fastboot mode.
In other words, there may be no way to fix your situation.
As the hardware is fine there must be a method, but it might be something only LG can do.

Lennyuk said:
Basically it sounds to me like your phone managed to flash the updated Android 5.0 bootloader but didn't update the LAF image (download mode). The old download mode doesn't work on the new bootloader, it gives the error you are experiencing.
Because you still have a LAF partition, and presumably a recovery partition (even if they are not working) you cannot access fastboot mode.
In other words, there may be no way to fix your situation.
As the hardware is fine there must be a method, but it might be something only LG can do.
Click to expand...
Click to collapse
I'm in the same situation now.
I was bumped with TWRP and CM12 installed. I wanted to unroot and go back to stock. Started a flash with LG flashing tool, but it was taking ages, so I unplugged the USB cable in the middle.
Now whenever I boot via either VolUp+USB or trying to get into a recovery I get secure boot error.
Is there a way to fix this ? Or do I need to send a phone to LG ?

This has happened to me today. Downgrading got stuck at 3%. LG Flash tool said to remove phone and plug back in. Any way to fix
Also, does anyone know if downgrading voids warranty or anything?

militantslash said:
This has happened to me today. Downgrading got stuck at 3%. LG Flash tool said to remove phone and plug back in. Any way to fix
Also, does anyone know if downgrading voids warranty or anything?
Click to expand...
Click to collapse
I didn't find a way to fix it, so I've just sent it to LG repair shop. They haven't yet looked at it so I don't know how much would it cost.

People just tell the service center that you were upgrading from KitKat to Lollipop when the problem happened
Evidence wise it support your claim since the OTA from KitKat to Lollipop overwrites the aboot, sbl, laf and recovery partitions and service center people ultimately cannot tell between failed OTA and a failed KDZ flash

jodvova said:
I didn't find a way to fix it, so I've just sent it to LG repair shop. They haven't yet looked at it so I don't know how much would it cost.
Click to expand...
Click to collapse
Did you get an answer on the cost yet? I have the same problem, so I'm probably looking at the same resolution as you.

yourzero said:
Did you get an answer on the cost yet? I have the same problem, so I'm probably looking at the same resolution as you.
Click to expand...
Click to collapse
It was free for me, as it was on warranty.

solution for no download mode
Hi guys.
If you cant enter into download mode then you need to force your g3 in to qhsusb bulk mode by shorting the test point.
When you short battery must be removed.
After short your phone will be detected as qhsusb bulk mode.
Send me msg in pm for further help.
If u dont know the test point then let me know.

http://www.androidbrick.com/unbrick-recover-your-dead-lg-g3-all-variants/

Lg g# test point free! Here !
just got the PDF! this is the point I Found to put your LG G3 in Qualcomm 9008 mode
XDA not letme to put the link and if you want it FOR FREE just primvate me an message I will sent you a link!

aftabalam8c2 said:
Hi guys.
If you cant enter into download mode then you need to force your g3 in to qhsusb bulk mode by shorting the test point.
When you short battery must be removed.
After short your phone will be detected as qhsusb bulk mode.
Send me msg in pm for further help.
If u dont know the test point then let me know.
Click to expand...
Click to collapse
hey need help . check pm

Hi there!
aftabalam8c2 said:
Hi guys.
If you cant enter into download mode then you need to force your g3 in to qhsusb bulk mode by shorting the test point.
When you short battery must be removed.
After short your phone will be detected as qhsusb bulk mode.
Send me msg in pm for further help.
If u dont know the test point then let me know.
Click to expand...
Click to collapse
Hi! I just recently bricked my LG G3 D852, and I would really appreciate it if you could PM me and help me out here.

http://forum.xda-developers.com/showthread.php?t=2785089
Try this. This will revert to factory default, tons of bloatware included ?
Sent from my D855 running CloudyG3 2.3 with Gabriel5 kernel.
Don't forget to smash that thanks button if I, or someone else helps you, guys!

[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.

LG Optimus F3 - VM/Sprint/VW - All Thread

Moderators- can a user create a thread category? I know its not new but this phone has enough posts to fill it, a heading. Thanx

LG Optimus F3 Bricked, No Boot At All
Hi all, and thanks in advance for any help received. Long story short I just bought a VM LG Optimus F3 and bricked it within an hour. Im not new to rooting, but not Dev-level either, I prepared the folders and files necessary while I waited for the phone to be delivered. Ran a root tool but it only rooted the device, no recovery partition was changed or flashed, and on rebooting into recovery, brick. Just FYI, RomToolbox told me I had TWRP installed.
With different forums and information posted I've tried entering DL Mode, running the Flash Tool, and ADB'ing the phone ( debugging Was selected prior to my screw up), but the most I get is a colored Home button sometimes. Help PLEASE.. thanx!
Also on Win10 x64
*The attachments are just PC Screenshots. I was able to install the LGE Android Serial Driver in place of the QSHUSB_DLOAD, but the connection wasn't true.