maybe someone still has the old KDZ for the E971 that might work?
At least for rogers the old files are still there, follow the standard method to get the link. Replace E->D in the link (filename and last directory) and it should work. I am sure the same would apply for bell and telus as well if you know the old version number.
Ok I have figured it out. If anyone is having a similar issue here is what you do:
First follow the guide in this thread, if you are still stuck at boot logo even after the manual wipe power off your phone, hold down the power and volume down keys to enter factory reset mode and click power again to confirm a factory reset. This worked like a charm for me
For whatever reasons (improper rooting/flashing, power outage during updating, freezing/removal of LG bloatwares or simple bad luck etc), if you bricked your Optimus G and is stuck with a Security Error or in a bootloop, fear not, as long as you can put it into Download and Recovery Mode, all is not lost.
I got the korean version of the (almost) Optimus G (Optimus LTE2, f160k) and ran into the same security error problem that happened out of the blue.
The steps that I undertook below resolved the problem for me and has been proven to work on Optimus G by fellow members.
http://xdaforums.com/showpost.php?p=34516791&postcount=29
1) Download the latest KDZ from LG's server for your phone via the app below (kudos to the creator)
http://www.mediafire.com/?cgeb6o5osy2yl9c
2) Make sure you have LG United Drivers already installed, otherwise download from below
http://www.mediafire.com/?82nt1aeh04aqa3m
3) Download LG KDZ Updater
http://www.mediafire.com/?sj5y073xal03ntw
4) Download the manual adb wipe batch file
http://www.mediafire.com/?ru7erfxsz7p7s3p
5) Put your Optimus G into Download Mode by switching it off, attaching the usb cable to the phone, holding both the up and down volume buttons at the same time and lastly inserting the usb cable into the computer; wait for the drivers to finish loading if doing it for the first time.
6) Unzip the downloaded updater zip file and run KDZ_FW_UPD.exe. Use the settings below
Type: 3GQCT
Phone Mode: CS_Emergency
KDZ file: navigate to the folder which you have saved the downloaded KDZ from the step (1)
Click Launch Software Update and wait for the flash process to finish
7) Your phone will restart itself when IParam = 90 is displayed and proceed slower until you see IParam=1 again (which signals the end of flash, you can safely exit the program then and remove the cable from the phone). If phone boots up normally, congrats, skip the steps below and proceed to use the phone as per normal.
However, this most probably will not be the case for newer Optimus-es, as the data partition somehow wasn't wiped even when KDZ-ed, remaining 'dirty', thus causing bootloop or security infringement.
8) If the phone is stuck at the booting up LG/Telco logo, you will need to manually wipe the data partition.
9) Force the phone off by holding the power button for appx 15secs.
10) Put the phone into recovery mode by holding the volume up and home button concurrently, then press the power button. Let go of all the buttons after you see the LG logo on screen for the 2nd time and the screen goes blank thereafter (backlight may still be on). The phone will kind of reboot and then enters recovery mode. Repeat the process if you did not get it the first time.
11) With the phone in Recovery Mode, connect it to the computer, wait for the drivers to load (if doing it for the first time), unzip the wipe batch file downloaded earlier from step (4), double click on wipe.bat to execute the wipe command.
12) Your phone will auto reboot when wiped and (hopefully) boot as per normal.
Hope with this simple guide fellow members will feel safer when rooting or removing non essential LG wares from their Optimus G.
Ok I have figured it out. If anyone is having a similar issue here is what you do:
First follow the guide in this thread, if you are still stuck at boot logo even after the manual wipe power off your phone, hold down the power and volume down keys to enter factory reset mode and click power again to confirm a factory reset. This worked like a charm for me
hi there thanks for the guide i have one question. Step 6 :Type: 3GQCT
Phone Mode: CS_Emergency
KDZ file: navigate to the folder which you have saved the downloaded KDZ from the step (1)
I cant get the the firmware in the KDZ file. (navigate to the folder which you have saved the downloaded KDZ from the step (1)) nothing to oprn there but i do have it in my downloads
Go here, replacing <yourimei> with your actual imei (just numbers, nothing else), it'll spit out a bunch of text including an address with the kdz.
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=<yourimei>
I also have a display model or something similar. It's an E973 stamped *NOT FOR SALE* on the side. I am trying to root without luck and was sent here and told to load the old stock firmware. Unfortunately I can't seem to get the latest KDZ from LGs server. I have also tried the LG Mobile Support Tool to update but I get "Software update is not supported for this model".
The LG Support Tool reports model as LGE973AT and version as E97310g.
Software Information:
4.0.4
baseband APQ8064/MDM9x15M
kernel 3.0.21
build IMM76L
e97310g
IMEI is 354034050124768
IMEI SV 05
Also if it matters, the phone came unlocked and I am using it with Virgin. Will it still be unlocked if I change the firmware to Bell/Telus? I really hope someone can help me out here as I am unable to root currently .
Did you try that URL to download the kdz
If that didn't work see if someone has posted a link to e973 kdz
Or try to get a different imei for 973 either bus asking here or go to a store and get it from one of the for sale devices
Sent from my LG-E971 using xda app-developers app
I get PHONE NOT FOUND when trying to update. Am I supposed to do something with the wipe batch file?
I have E973 from Bell and it's been bricked since sunday after renaming couple of system apps.
I am trying to follow the instruction above but i can't download KDZ file with LG firmware downloader bc it just would not take my SN.
Error msg is "unsuccessful in connecting to server orphone infomations is wrong!"
Could anyone upload KDZ file for Bell E973 somewhere on the net that i can download?
It would be much appreciated..
Thanks for your response! So this method only works for the Sprint version??
I have E973 from Bell and it's been bricked since sunday after renaming couple of system apps.
I am trying to follow the instruction above but i can't download KDZ file with LG firmware downloader bc it just would not take my SN.
Error msg is "unsuccessful in connecting to server orphone infomations is wrong!"
Could anyone upload KDZ file for Bell E973 somewhere on the net that i can download?
It would be much appreciated..