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sara loli
Lurker
dear bro
first thanx to replay
dear phone hung to logo lg cant known to computer usb and after connect to computer lg svcreen apper after 50 scnds go dirctly to fastboot mode strted and pc known it u understand me
bolski
Android Enthusiast
First off, it's very hard to understand what you are saying.
What caused this to happen? Were you flashing a ROM? Were you trying to root or install a custom recovery like TWRP? Were you installing an app or a patch to the phone (if so, what exactly were you installing)?
What caused this to happen? Were you flashing a ROM? Were you trying to root or install a custom recovery like TWRP? Were you installing an app or a patch to the phone (if so, what exactly were you installing)?
bolski
Android Enthusiast
When you say lollipop, do you mean an official update pushed out by your wireless carrier or were you trying to flash a custom ROM? If it was an official OTA from your wireless carrier, you might have to take it back to your wireless carrier and have them try to fix it.
You could also try and flash back to stock KK, but that all depends on what version of the G3 you have (Verizon, AT&T, etc). Each carrier has their own version of the phone and therefore, each one requires it's own stock image to flash back.
I haven't flashed back to stock, so I can't help you there since I'm still running stock KK. However, you can go to the following link which will provide help on how to flash back to stock:
http://forum.xda-developers.com/lg-g3/help/help-thread-lg-g3-question-t2947298
iowabowtech
root@android:/ #
Fastboot flash Kit Kat aboot, boot and laf using files from the same firmware version to restore download mode. Then use one of the available flash tools to flash an applicable kdz or tot.
In your case of a failed update to 5.0, you may even want to fastboot flash the entire bootstack, not sure. (aboot, boot, laf, dbi, tz, sbl1, rpm)
In your case of a failed update to 5.0, you may even want to fastboot flash the entire bootstack, not sure. (aboot, boot, laf, dbi, tz, sbl1, rpm)
zaid qurreshi
Lurker
hello dear iowabowtech, i purchase lg g3 f400k then i install custom recovery twrp 2.8.0.0 in my g3 after that mistakely i install lg g3 d855 custom rom montary 8.3 in my lg g3 f400k when installtion completes my lg g3 go to fastboot mod started.
then i remove battery and insert it again and press volum up button and plug usb cable in lg g3 f400k my phone go to download mod. but when i install stock firmware via tot method error comes like ''I SHOW YOU IN PICS'' how fastboot mood started and how firmware update failed in tot method .sorry for poor english. sir please save me from terrible situation by helping me.
then i remove battery and insert it again and press volum up button and plug usb cable in lg g3 f400k my phone go to download mod. but when i install stock firmware via tot method error comes like ''I SHOW YOU IN PICS'' how fastboot mood started and how firmware update failed in tot method .sorry for poor english. sir please save me from terrible situation by helping me.
Attachments
zaid qurreshi
Lurker
i buy lg g3 f400k then i install custom recovery twrp 2.8.0.0 in my g3 after that mistakely i install lg g3 d855 custom rom montary 8.3 in my lg g3 f400k when installtion completes my lg g3 go to fastboot mod started.
then i remove battery and insert it again and press volum up button and insert usb cable in lg g3 f400k my phone go to download mod. but when i install stock firmware via tot method error comes like ''I SHOW YOU IN PICS'' how fastboot mood started and how firmware update failed in tot method .sorry for poor english. sir please save me from this situation by helping me.
then i remove battery and insert it again and press volum up button and insert usb cable in lg g3 f400k my phone go to download mod. but when i install stock firmware via tot method error comes like ''I SHOW YOU IN PICS'' how fastboot mood started and how firmware update failed in tot method .sorry for poor english. sir please save me from this situation by helping me.
Attachments
iowabowtech
root@android:/ #
You should be able to use your working download mode to restore with a tot. You will need to hexedit your f400k tot to read model d855. Once that is done, you will then likely need to use a different DLL than you have been currently using. I'm not sure if this is the correct generic DLL for bypassing the cross DLL error on the G3 but it appears it may be:
http://downloads.codefi.re/autoprime/LG/LG_G3/LGUP_8974.dll
When hexediting the tot, search the tot for the first instance of the f400k model number. Directly after the f400k should be the s/w version you're using which I only mention as a point of reference. You should edit only that very first instance of f400k to read d855, then save and exit. Since in this case you are dealing with changing from 5 characters to only 4, you'll need to be sure you've zero'd that last digit. You must not change the total number of bytes or the order of those bytes both before and after the model, or it will not save and will not work.
Protip: always keep a copy of the original tot on your pc. That way if you make an error editing, you don't have to download the entire tot again.
http://downloads.codefi.re/autoprime/LG/LG_G3/LGUP_8974.dll
When hexediting the tot, search the tot for the first instance of the f400k model number. Directly after the f400k should be the s/w version you're using which I only mention as a point of reference. You should edit only that very first instance of f400k to read d855, then save and exit. Since in this case you are dealing with changing from 5 characters to only 4, you'll need to be sure you've zero'd that last digit. You must not change the total number of bytes or the order of those bytes both before and after the model, or it will not save and will not work.
Protip: always keep a copy of the original tot on your pc. That way if you make an error editing, you don't have to download the entire tot again.
zaid qurreshi
Lurker
THANX for helping me
sir when i hexediting LG G3 F400K tot, i convert f400 to d855 but please tell me that what i do with K character. can i erase k character??
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zaid qurreshi
Lurker
sir iowabowtech i show you in pics how i hexedit g3 f400k tot please tell me where i do mistake. i also use both f400k.dll and LGUP_8974.dll with hexedit (modified) g3 f400k tot.
after hexediting g3 f400k tot when i procced to lg flash tool error comes ''failed previous load()''
sir please help me i am in big trouble.
after hexediting g3 f400k tot when i procced to lg flash tool error comes ''failed previous load()''
sir please help me i am in big trouble.
Attachments
iowabowtech
root@android:/ #
I found it easier in retrospect to search "800" instead. The instance you have edited is not the right one. Here is the string you are looking for:
And here is edit I made to add a blank byte (00) after the D855:
So F400k becomes D855.
That way you start with 5 bytes in the F400k and you still end up with 5 bytes with D855. <--due to the period (or zero, zero which is a blank byte)
In my hexeditor, I had an issue adding a period in the right most editing window that reads the text, so I instead edited a new 00 into the mix by using the main, leftmost area where all the bytes themselves are shown. You can edit in either place. So basically, I placed the cursor at the end of the D855 (the right most 35 in the highlighted text above) and then just typed 2 zeros to add the blank.
And here is edit I made to add a blank byte (00) after the D855:
So F400k becomes D855.
That way you start with 5 bytes in the F400k and you still end up with 5 bytes with D855. <--due to the period (or zero, zero which is a blank byte)
In my hexeditor, I had an issue adding a period in the right most editing window that reads the text, so I instead edited a new 00 into the mix by using the main, leftmost area where all the bytes themselves are shown. You can edit in either place. So basically, I placed the cursor at the end of the D855 (the right most 35 in the highlighted text above) and then just typed 2 zeros to add the blank.
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zaid qurreshi
Lurker
i use Hex editor neo and also use replace feature of hex editor for changing text of f400k to d855 but same error appears in flash tool please help me.
zaid qurreshi
Lurker
thnx for reply i am tryingI found it easier in retrospect to search "800" instead. The instance you have edited is not the right one. Here is the string you are looking for:
And here is edit I made to add a blank byte (00) after the D855:
So F400k becomes D855.
That way you start with 5 bytes in the F400k and you still end up with 5 bytes with D855. <--due to the period (or zero, zero which is a blank byte)
In my hexeditor, I had an issue adding a period in the right most editing window that reads the text, so I instead edited a new 00 into the mix by using the main, leftmost area where all the bytes themselves are shown. You can edit in either place. So basically, I placed the cursor at the end of the D855 (the right most 35 in the highlighted text above) and then just typed 2 zeros to add the blank.
zaid qurreshi
Lurker
I found it easier in retrospect to search "800" instead. The instance you have edited is not the right one. Here is the string you are looking for:
And here is edit I made to add a blank byte (00) after the D855:
So F400k becomes D855.
That way you start with 5 bytes in the F400k and you still end up with 5 bytes with D855. <--due to the period (or zero, zero which is a blank byte)
In my hexeditor, I had an issue adding a period in the right most editing window that reads the text, so I instead edited a new 00 into the mix by using the main, leftmost area where all the bytes themselves are shown. You can edit in either place. So basically, I placed the cursor at the end of the D855 (the right most 35 in the highlighted text above) and then just typed 2 zeros to add the blank.
dear sir can you please upload modified tot for me i am really thankfull to you. my hex editor is different
and i am unable to modify my tot file please after uploading to google drive send me link .i hear about you that you are life saving person for bricked device.
zaid qurreshi
Lurker
sir don't upload tot for me. IOWABOWTECH you are MASTER of masters, billions of times thanxxxx finally i solve my g3 issue 
by carefully noticing your last post you are GREAT thanx again you save my device god bless you.
by carefully noticing your last post you are GREAT thanx again you save my device god bless you.
iowabowtech
root@android:/ #
Good to hear of your success. Be well.
Harith saad
Lurker
I have the same problem :| exactly the same..
i guess i am about to solve it maybe when i get my device back.. anyway i will leve my fb account
just in case if there is anyone who already solved this problem so please let me know if so.. https://www.facebook.com/Harithsaad2014
..
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iowabowtech
root@android:/ #
No thanks on the Facebook, deleted my account some time ago. Run fastboot reboot command. Let us know if the phone reboots. If so, the road will be much easier. If not, it can be fixed but the difficulty level will be much higher.
Harith saad
Lurker
Oh ok and about the phone it stuck on that fastboot mode i mean when i turn it on LG logo take so long then fastboot mode start , everything i do lead to fastboot mode!!!
iowabowtech
root@android:/ #
Right. What I'm saying is fastboot mode, in some cases, can be interfaced by way of hooking the device to a PC via USB cable. In order to interface the device, you need the fastboot utility from the Android sdk. Luckily, our forums have an easy to install version seen in post #2 of this thread:
http://androidforums.com/threads/adb-guide-updated-2014-11-11.443072/
Once installed onto your PC open command prompt/terminal and issue a fastboot devices command followed by a fastboot reboot command. If the phone reboots, you have a working connection and we can move toward a fix.
Harith saad
Lurker
when i start the firmware update it it doesnt start! it lead me to "fastboot mode" :|
Christopher 12
Lurker
I hear about you iowabowtech you are master for hard brick lg devices please help me. I am facing serious problem i have lg g flex 2 sprint i was trying to downgrade it via tot method from LS996ZV7 to LS996ZV5 after about 85% progress my g flex 2 disconnected and never turned on, when i connect g flex 2 to computer in device manager it shows QHSUSB-BULK i think it is in hard brick state. I am in terrible situation please prefer solution for me i am really thankfull to you.