LG G2 D80020c AT&T ONLY Kit-Kat Firmaware

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Jan 17, 2010
12
0
Buckley, wa

jdk2

Senior Member
Feb 7, 2010
414
157
Brunswick County, NC
I've got KK firmware already (20c), but my phone is not registered so I can not update to 20u via OTA. Is there any way to update to 20u by FlashTool and TOT file for firmware 20u (with knock code feature)?
If you restored previously with one of the .tot's floating around, you may just need a new sim card from AT&T in order to receive the OTA. The .tot flash seems to ruin the sim cards for some reason. And intermittently at that.
 

Tremulant1

Senior Member
Jun 13, 2012
148
27
California
Baseband question

Hello,

I had a quick question, when you flash using the ToT does it wipe/re-do the baseband as well? Or does it just do the system and internal SD card?

Thanks,
 

SuperSport

Inactive Recognized Contributor
Jun 27, 2007
3,260
619
Northern California

jpcdeux

Senior Member
Mar 26, 2010
3,662
884
Laporte, IN
So my problem now becomes that no matter what version of LG Drivers I install I'm stuck with a ! Next to LGE AndroidNet USB serial port and no matter what I do I cant get drivers installed for it. Windows update searches and fails to install every single time
 

themow

Senior Member
Aug 24, 2011
119
3
Philly
This looks great thank you
Wondering if anyone could shed some light on my situation. I just got a d800 ( confimed via motherboard and imei)that has a a d801 rom flashed on it. 12-20150225-nightly-d801. Previous owner was using it on metropcs. I want to go back to stock. Can I follow this method? Will being on an 801 rom cause any issues?
Thanks
 

fpage

Member
Jun 30, 2009
22
1
I am having a similiar problem...cant get the CDC serial to install...hence I cant flash stock firmwares to my device which is bricked...(only have access to fastboot and download after flashing a wrong downgrade zip file that is for another g2 variant). I have a d800

Sent from my GT-I9200 using XDA Free mobile app
 

fpage

Member
Jun 30, 2009
22
1
How can I install CDC serial drivers for lg g2?...everytime I try the other 2 drivers are installed...

Sent from my GT-I9200 using XDA Free mobile app
 

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sobitthen

Senior Member
Jun 20, 2012
186
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refer.cricketwireless.com
This looks great thank you
Wondering if anyone could shed some light on my situation. I just got a d800 ( confimed via motherboard and imei)that has a a d801 rom flashed on it. 12-20150225-nightly-d801. Previous owner was using it on metropcs. I want to go back to stock. Can I follow this method? Will being on an 801 rom cause any issues?
Thanks

Looking for same answer, need to flash a stock ROM back onto my phone to return for repairs.
And yes, if your phone is the D800 internally, the labeling to the D801 is just a byproduct of the flash.
 

fpage

Member
Jun 30, 2009
22
1
I am having a big issue...I bricked my rooted D800 after flashing a downgrade zip for another g2 model(some docomo...)... (phone can boot into download mode)....I got all files necessary to flash back stock firmware using lg flash tool...but every time I try to do so...I get an error saying ...battery too low.....0%...but the phone is charged...even though I can't get it to boot in the os...Another thing I can't power off the phone..every time I try.... it goes back to a fastboot screen. Please help me.....

Sent from my GT-I9200 using XDA Free mobile app
 

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heynando

Senior Member
Aug 1, 2008
318
64

hey mate this link isn't working anymore, I also searched inside the G2 ATT folder and did not find this file

Here is my 20 with the flash tool and dll. https://mega.co.nz/#!OpQTxJoT!r_tA_WVm85JoZeF3zGD3khHHfRYzJwTHCrS9t-zM-mI
Here is the complete folder so you can decide what you want. https://mega.co.nz/#F!espEgJKL!apX8kecHWQu6iQ7XNbPXag
Thank you SuperSport, your link is working.
 
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  • 74
    Here is the D80020c 4.4 .tot and .dll for AT&T D800 ONLY. This will not retain root and will wipe all your data and internal sdcard. Make a back-up of your important items before preceeding.


    I AM NOT RESPONSIBLE FOR ANYTHING YOU WITH YOUR OWN DEVICE

    Don't forget to hit the thanks button


    ***Quick Questioned Answered***
    1.Can be flashed over D80010d and D80010o firmware
    2.You will lose Root
    3.NO WAY TO ROOT YET
    4.You can use Lg Flash Tools to go back to 10d,10o.


    Download:
    1. LGFlashTools v1.5 - Download

    2. Drivers - Download

    3. Download the LGD800AT-01-V20c.zip (Mirrior)
    Extract to a folder on desktop. There will be 2 files(.tot, .dll)

    Credit to @madmack for making most of this Guide for the G Pro Which also works on our G2.
    Credit to @hyelton for the original write up in the General section here.

    Install:
    1. Install the LG drivers downloaded above.

    2. Install LGFlashTools v1.6 (but don't run it)

    3. Extract the TOT and .DLL file from the ZIP

    Drivers initialization:
    1. Put the phone into download mode. (Turn off device PRESS VOL UP while plugging in the micro usb cable. If this doesn't work, try holding both volume keys instead)

    2. Let the phone initialize and install the drivers. Once done, in Device manager, you should see the LG phone listed under COM ports (something along these lines).

    3. Find that LG entry in Device Manager, click on Properties, Advanced and then change the COM port to COM41 and close/save.
    4. Unplug your phone! Important step.

    LGFlashTools:
    To get this tool to work, you'll need to do a few tricks.

    1. Set the computer's date to some time in July 2012 or before.

    2. Disconnect the internet

    3. Find a serial number or register key from somewhere on the web (a google search for lgflashtools serial will yield some results). Can't help you here and please don't share any keys in this thread or get us in trouble.

    4. Execute the LGFlashTools. It should ask you for a key, put it in. Now you should see a dialog where you can load the DLL file and the TOT files that you extracted earlier. Put them both in here. Click ok

    Flashing:
    5. There is a yellow arrow on the top left. Click on it to initialize the process. Once done, it should say "ready/finished" or whatever.

    6. Put the phone in download mode again, and plug it into the USB port. LG FLash Tools should start flashing it automatically. When it's done, it'll automatically reboot into your stock AT&T rom and all of your data and internal sdcard files will be gone.

    Don't forget to hit the thanks button
    9
    saw some posts that have already been answered in the thread in the general section, so for those wondering:

    1 - There is currently NO NATIVE ROOT for the 4.4.2 d80020c firmware. It has been patched and another exploit has not been found yet. So don't ask. You'll see threads when it is found and released. Promise.
    - You can root by rooting a previous 10x firmware, and then updating to 20c, but you *must* have stock recovery.

    2 - There is currently NO WAY to have custom recovery on 4.4.2 d80020c
    - You put 20c on, you stick with 20c. no way to flash other ROMs. Loki was patched.
    - We do have a workaround, but we need the kernel source (loki'd boot.img from 20c using 10o aboot). So until LGE posts their source or someone more versed in this can find an exploit for the
    bootloader/kernel/aboot , we're stuck.

    3 - I have been using the rpm, tz, and modem from 20c with 10o partition images with no negative effects. Although I don't recommend trying to flash the rpm and
    tz images unless you know what you're doing / risking.
    4
    Members play nice and be nice.....last warning. Thank You.
    4
    Where's it at? Link is dead StorageCow mirror is a maze. Only seeming to find a v10?
    http://storagecow.eu/index.php?dir=Xda/LG+G2/Stock/AT&T/
    Here is my 20 with the flash tool and dll. https://mega.co.nz/#!OpQTxJoT!r_tA_WVm85JoZeF3zGD3khHHfRYzJwTHCrS9t-zM-mI
    Here is the complete folder so you can decide what you want. https://mega.co.nz/#F!espEgJKL!apX8kecHWQu6iQ7XNbPXag