Develop Bugs

[Q] Optimus G Pro Bricked -- All listed options failed

Have an ATT Optimus G Pro and I am stuck on bootloop at the LG symbol. I have attempted all listed options as I have been reading and searching for 4 hours now. Please help me with this. One issue I think may be the issue is I only have access to a windows 8 machine. I am running a rooted stock rom with CWM installed. Haven't even deleted any bloat yet. Can anyone give me a new idea?

Specialop24 said:
Have an ATT Optimus G Pro and I am stuck on bootloop at the LG symbol. I have attempted all listed options as I have been reading and searching for 4 hours now. Please help me with this. One issue I think may be the issue is I only have access to a windows 8 machine. I am running a rooted stock rom with CWM installed. Haven't even deleted any bloat yet. Can anyone give me a new idea?
Click to expand...
Click to collapse
Yes, my instructions here might help

uppon2 said:
Yes, my instructions here might help
Click to expand...
Click to collapse
That would be awesome if I could make it into recovery. I can get download mode, but thats the best I can get. I can get to hard reset, but that just puts it in a different loop. Samsung is so much easier.

Specialop24 said:
That would be awesome if I could make it into recovery. I can get download mode, but thats the best I can get. I can get to hard reset, but that just puts it in a different loop. Samsung is so much easier.
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Click to collapse
What happens when you try to use LG Mobile Recovery Tool and follow this guide?

uppon2 said:
What happens when you try to use LG Mobile Recovery Tool and follow this guide?
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Click to collapse
I am having this same problem and the recovery flash tool does not recognize device for me after installing all drivers and reboot. Any other options?

dave71670 said:
I am having this same problem and the recovery flash tool does not recognize device for me after installing all drivers and reboot. Any other options?
Click to expand...
Click to collapse
If that doesn't work then you can try this

I have tried to use the lg flash too but my problem is that I cannot get the computer to recognize the phone even though the phone goes into download mode and the drivers are installed on the phone. I have an att 3980 phone (united states). Please help...stuck at lg logo.
uppon2 said:
If that doesn't work then you can try this
Click to expand...
Click to collapse

Update: I was able to get to hard reset (holding down volume and power keys at same time). This took me to cwm recovery and then I reflashed beanstalk rom that I was on (fortunately, it was still on my phone) and then reflashed gapps.
rehuxley said:
I have tried to use the lg flash too but my problem is that I cannot get the computer to recognize the phone even though the phone goes into download mode and the drivers are installed on the phone. I have an att 3980 phone (united states). Please help...stuck at lg logo.
Click to expand...
Click to collapse

[Q] Error lg mobile support tool

Hello everyone I have a problem with LG Mobile Support Tool.
Every time I follow a guide for unbrick my phone gives me this error:
Please disconnect the cable from your cell phone in order and remove and connect the battery.
Power on your cell phone and press the Restart button to resume update.
If LG Support Tool is stopped abnormally, try with [Options] - [Upgrade Recovery] in the tool menu.
The error is when it comes to 13-15%
I tried to reinstall it but nothing changes.
has anyone had this problem and how did you solve it?
goodbye
sorry for my bad english :/

Yeah,kdz updater. If you have an aosp rom installed,lg mobile tool won't work. Click my signature and read there
Sent from my EchoEd GT-I9505/smart phones,dumb people.

Did you end up getting this fixed?
I have the same problem. Did you end up getting this resolved? If so what did you do?

oaksu said:
I have the same problem. Did you end up getting this resolved? If so what did you do?
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Click to collapse
me too

oaksu said:
I have the same problem. Did you end up getting this resolved? If so what did you do?
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Click to collapse
crizalid8 said:
me too
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Click to collapse
Do you guys have acces to recovery mode?
If so, then you should be able to flash a custom rom through adb sideload function.
If not, then either of these threads might help you out:
http://forum.xda-developers.com/showthread.php?t=2010624
http://forum.xda-developers.com/showthread.php?t=2249500

howaboudno said:
Do you guys have acces to recovery mode?
If so, then you should be able to flash a custom rom through adb sideload function.
If not, then either of these threads might help you out:
http://forum.xda-developers.com/showthread.php?t=2010624
http://forum.xda-developers.com/showthread.php?t=2249500
Click to expand...
Click to collapse
problem solved
I used lg flash tool
select type: CDMA
phone mode: CS_EMERGENCY
CSE Flash
sorry for my bad english

Secure booting error on LG e989_0608

I have an LG e989_0608 which has this error.
It was purchased on ali express, so i am not sure about the info.
here is an example listing:
http://www.aliexpress.com/item/E980...48d8365fb7cf716-1459179376583-05342-eub6yrrBy
I am not exactly certain which device this is.
Some said F240, some said e988.
enclosed below are pictures of the error and the device backside.
I tried several methods of flashing, and nothing seems to actually get anything going in Download mode.
is there a universal img file for CWM\TWRP I can put on there the same way we did on samsung devices ?

By your description you have an e989. Then, go to Hyelton's thread in the general section, download the files for the e989. There you will find the instructions to flash back to stock using LG tool.

g0at1 said:
By your description you have an e989. Then, go to Hyelton's thread in the general section, download the files for the e989. There you will find the instructions to flash back to stock using LG tool.
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I tried what he suggests, it keeps failing to flash in download mode, says I should "restart to resume upgrade"

heathenasparagus said:
I tried what he suggests, it keeps failing to flash in download mode, says I should "restart to resume upgrade"
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Click to collapse
I'm not sure that's the same, but when I need to return to stock, after the extraction of the kdz there's an error.
However, behind the error screen the upgrading process continues. Is that what happens?

g0at1 said:
I'm not sure that's the same, but when I need to return to stock, after the extraction of the kdz there's an error.
However, behind the error screen the upgrading process continues. Is that what happens?
Click to expand...
Click to collapse
doesn't look like it.
is there a util i can run on a linux or mac machine for this? like heimdall but for lg phones

heathenasparagus said:
doesn't look like it.
is there a util i can run on a linux or mac machine for this? like heimdall but for lg phones
Click to expand...
Click to collapse
@hyelton do you have any suggestions to help solve this problem?

heathenasparagus said:
I tried what he suggests, it keeps failing to flash in download mode, says I should "restart to resume upgrade"
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Click to collapse
Is the phone in download mode correct? And using a USB 2.0 port?

hyelton said:
Is the phone in download mode correct? And using a USB 2.0 port?
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Click to collapse
yes and yes

Help! LGUP Unkown MODEL LG G4

Hey all, I think I broke my G4 h811 , but not at all because I can access to download mode, the problem is that when I try to open LGUP or LG flash tools, my LG appears as UNKNOW MODEL, and because of that I can´t install the kdz file, I tried to re install all the drives and so on, I am working in a win 10 laptop. Someone that can help me. Thanks!!! I will be waiting for a answer.

Enable usb debugging mod in settings>developer options. And also make sure that you have all the lg drivers installed and working. I am sure you will be fine.

fncalderong said:
Hey all, I think I broke my G4 h811 , but not at all because I can access to download mode, the problem is that when I try to open LGUP or LG flash tools, my LG appears as UNKNOW MODEL, and because of that I can´t install the kdz file, I tried to re install all the drives and so on, I am working in a win 10 laptop. Someone that can help me. Thanks!!! I will be waiting for a answer.
Click to expand...
Click to collapse
Try using LGBridge and clicking the update error recovery.
You are coming from an international rom right?

change port number. or task manager adb kill

mdau said:
Enable usb debugging mod in settings>developer options. And also make sure that you have all the lg drivers installed and working. I am sure you will be fine.
Click to expand...
Click to collapse
Thanks for answering, Unfortunately I can´t access to android just Download mode

Vseprz said:
Try using LGBridge and clicking the update error recovery.
You are coming from an international rom right?
Click to expand...
Click to collapse
I am coming from a rooted T-Mobile rom, all happened because I change the file build.prop :/, I tried LGBridge but nothing

ToreqLex said:
change port number. or task manager adb kill
Click to expand...
Click to collapse
thanks for answering, I already changed port number to 41, what do you mean with task manager adb kill ?

fncalderong said:
I am coming from a rooted T-Mobile rom, all happened because I change the file build.prop :/, I tried LGBridge but nothing
Click to expand...
Click to collapse
And you no longer have recovery mode?

Vseprz said:
And you no longer have recovery mode?
Click to expand...
Click to collapse
I can access by VOL- & Power with factory data reset options, I tried but nothing change

fncalderong said:
I can access by VOL- & Power with factory data reset options, I tried but nothing change
Click to expand...
Click to collapse
So using the hardware buttons, and clicking yes through the factory reset confirmation does not boot you into recovery mode? Did you format your internal memory?

Vseprz said:
So using the hardware buttons, and clicking yes through the factory reset confirmation does not boot you into recovery mode? Did you format your internal memory?
Click to expand...
Click to collapse
using hardware buttons and clicking yes the phone just restarted and that´s it. I didn´t format my internal memory. I was trying to fix my phone by using kdz files but the problem is that the programs as lg flash tool and LGUP don´t recognize the model of my lg g4.

fncalderong said:
using hardware buttons and clicking yes the phone just restarted and that´s it. I didn´t format my internal memory. I was trying to fix my phone by using kdz files but the problem is that the programs as lg flash tool and LGUP don´t recognize the model of my lg g4.
Click to expand...
Click to collapse
What firmware were you on? What message did LGBridge say when you tried error update recovery?

I have the same problem with my H815 and Windows 10. All drivers are set up correctly. In device manager, I can see the device and ADB Device, but LGUP won't recognize my G4. Obviously, LGUP is buggy...
Is there any better tooling to upgrade to a more recent ROM? Otherwise, I really would have to change to CM13 - upgrading is very easy and not any nasty USB stuff what in the end may not work at all...

Vseprz said:
What firmware were you on? What message did LGBridge say when you tried error update recovery?
Click to expand...
Click to collapse
I am porting the h811 20i, LGBridge say just that there are not update errors that can be recovered

Maheshwara said:
I have the same problem with my H815 and Windows 10. All drivers are set up correctly. In device manager, I can see the device and ADB Device, but LGUP won't recognize my G4. Obviously, LGUP is buggy...
Is there any better tooling to upgrade to a more recent ROM? Otherwise, I really would have to change to CM13 - upgrading is very easy and not any nasty USB stuff what in the end may not work at all...
Click to expand...
Click to collapse
But I can´t even access to android :/

fncalderong said:
Hey all, I think I broke my G4 h811 , but not at all because I can access to download mode, the problem is that when I try to open LGUP or LG flash tools, my LG appears as UNKNOW MODEL, and because of that I can´t install the kdz file, I tried to re install all the drives and so on, I am working in a win 10 laptop. Someone that can help me. Thanks!!! I will be waiting for a answer.
Click to expand...
Click to collapse
Download this driver. This will help you.
I am new to this forum so I can not link, but you have to look for LG driver version 3.14.1
I had the same problem today and it helped me.
Good luck

JanMarty said:
Download this driver. This will help you.
I am new to this forum so I can not link, but you have to look for LG driver version 3.14.1
I had the same problem today and it helped me.
Good luck
Click to expand...
Click to collapse
Thanks, but I installed the drive and nothing is still Unknow model for LGUP :/

Cannot flash lg-h815

Hello, i have an LG-H815 mobile stuck on boot screen and im trying to flash it with LG Flash Tool 2014. I installed the drivers LGMobileDriver_WHQL_Ver_4.0.4_2 and connected the phone in download mode. Selected CS_EMERGENCY and the kdz file: H81520B_00.kdz. Now i try to CSE Flash and selected START. Then the process starts and i get "connection to server failed". I think driver problem.....check the attachment...btw using windows 7
Help....

andrew21 said:
Hello, i have an LG-H815 mobile stuck on boot screen and im trying to flash it with LG Flash Tool 2014. I installed the drivers LGMobileDriver_WHQL_Ver_4.0.4_2 and connected the phone in download mode. Selected CS_EMERGENCY and the kdz file: H81520B_00.kdz. Now i try to CSE Flash and selected START. Then the process starts and i get "connection to server failed". I think driver problem.....check the attachment...btw using windows 7
Help....
Click to expand...
Click to collapse
why not use LG G4 LGUP google it. for KDZ's

Can I use in Windows 10 and what about driver, it's not installing?

andrew21 said:
Can I use in Windows 10 and what about driver, it's not installing?
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not sure , but if i remeber right. they talk about win10 compatibility i think use other computer like win7.
like i said not really sure read the thread for go back to stock.. it should say or the LGUP KDZ thread.
am on win 7 works okey.

How do I know which firmware to download for LG-H815? Tried searching by IMEI but didn't find anything. Also, for drivers I read somewhere that I should do Windows update.

andrew21 said:
How do I know which firmware to download for LG-H815? Tried searching by IMEI but didn't find anything. Also, for drivers I read somewhere that I should do Windows update.
Click to expand...
Click to collapse
Not sure about your KDZ better ask here and as for driveres i have the same i think..no need to update..
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848

Does anyone have a solution to my driver problem please?

andrew21 said:
Does anyone have a solution to my driver problem please?
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Only drivers i've used for lgup are the LGMobileDriver_WHQL_Ver_4.0.4, covers the spectrum of mtp etc

Ok I'll try it out..... Thanks

andrew21 said:
Does anyone have a solution to my driver problem please?
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Sometimes its actually normal when the process shows error let it finish completely if not ur stuck with using LG UP its easy
Sent from my LG-H815 using XDA-Developers mobile app