no download mode.. help! - G4 Q&A, Help & Troubleshooting

i have h815 5.1.1 with locked bootloader. when i heard theres a MM 20b available, i tried to update my phone, losing my root access.. i just played around for a while and was not so happy yet, that i decided to downgrade back to my old FW. (10e). i flashed back my kdz using LGUP using refurbished method. and now the problem starts to come in.. after flashing back, i rooted it again, then it starts to have bootloops.tried to look for another open kdz to flshed but didnt worked out.. when i tried to flash back again 20b, i cannot enter download mode anymore, still getting in recovery though, i tried to clear data. but still not booting up. LGUP is not seeing my phone and also flashtool 2014. please help..
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KDZ file extracts corrupt CAB file

Hello guys,
I upgraded my friend's recently purchased LG Optimus G.
I rooted the phone successfully with TWRP recovery.
I Unlocked the boot loader successfully.
I flashed a custom android 4.3 rom.
The phone was working absolutely fine.
Then, my friend took it home with him, and tried to flash another custom rom (He is a noob).
Now, after rebooting, the phone flashed the 'google' logo with a grey 'unlocked lock' icon and the screen goes blank.
I can not even figure out if the phone is on or not (the soft keys does not light up if I touch them).
After all, I tried to use the UNBRICK method using a guide but the problem is that the software won't proceed after extracting .KDZ file.
I tried downloading .KDZ file using the xda app which asks for phone model and serial number for the download, several times but no success.
I tried downloading the .KDZ file using a URL in which i have to write the IMEI number to get myself a download link. That shows corrupted too.
Can anybody help me to get a working KDZ file?? I think this will get me through the process.
OR
If there is any other possible way, please let me know.
Thanks in advance
bilalraybrig said:
Hello guys,
I upgraded my friend's recently purchased LG Optimus G.
I rooted the phone successfully with TWRP recovery.
I Unlocked the boot loader successfully.
I flashed a custom android 4.3 rom.
The phone was working absolutely fine.
Then, my friend took it home with him, and tried to flash another custom rom (He is a noob).
Now, after rebooting, the phone flashed the 'google' logo with a grey 'unlocked lock' icon and the screen goes blank.
I can not even figure out if the phone is on or not (the soft keys does not light up if I touch them).
After all, I tried to use the UNBRICK method using a guide but the problem is that the software won't proceed after extracting .KDZ file.
I tried downloading .KDZ file using the xda app which asks for phone model and serial number for the download, several times but no success.
I tried downloading the .KDZ file using a URL in which i have to write the IMEI number to get myself a download link. That shows corrupted too.
Can anybody help me to get a working KDZ file?? I think this will get me through the process.
OR
If there is any other possible way, please let me know.
Thanks in advance
Click to expand...
Click to collapse
I had the same problem. Try downloading several KDZ files cause the programm won't download the good one at once. I got mine at the 4th attempt.
bilalraybrig said:
Hello guys,
I upgraded my friend's recently purchased LG Optimus G.
I rooted the phone successfully with TWRP recovery.
I Unlocked the boot loader successfully.
I flashed a custom android 4.3 rom.
The phone was working absolutely fine.
Then, my friend took it home with him, and tried to flash another custom rom (He is a noob).
Now, after rebooting, the phone flashed the 'google' logo with a grey 'unlocked lock' icon and the screen goes blank.
I can not even figure out if the phone is on or not (the soft keys does not light up if I touch them).
After all, I tried to use the UNBRICK method using a guide but the problem is that the software won't proceed after extracting .KDZ file.
I tried downloading .KDZ file using the xda app which asks for phone model and serial number for the download, several times but no success.
I tried downloading the .KDZ file using a URL in which i have to write the IMEI number to get myself a download link. That shows corrupted too.
Can anybody help me to get a working KDZ file?? I think this will get me through the process.
OR
If there is any other possible way, please let me know.
Thanks in advance
Click to expand...
Click to collapse
1: Google logo plus unlock icon seems nexus device. May be he tried to convert it to nexus 4. I never tried it nor know if it requires any different way to get stock, so search.
2: download kdz from here choose 1gb or less kdz.
http://lg-phone-firmware.com/index.php?id_mod=20
Sent from my GT-P3100 using Tapatalk HD
atifsh said:
1: Google logo plus unlock icon seems nexus device. May be he tried to convert it to nexus 4. I never tried it nor know if it requires any different way to get stock, so search.
2: download kdz from here choose 1gb or less kdz.
http://lg-phone-firmware.com/index.php?id_mod=20
Sent from my GT-P3100 using Tapatalk HD
Click to expand...
Click to collapse
Thanks for the help.
I hope this will work
By the way,
What is the problem with greater than 1 GB files?
Just curious
bilalraybrig said:
By the way,
What is the problem with greater than 1 GB files?
Just curious
Click to expand...
Click to collapse
kdz installer we have cant extract files greater than 1.05 GB i do manage to get 1 or 2 files that were 1.08 GB but most wont.
max is 1.05 GB in my experience.
okay, thanks for the information!
Hey! I have done the download, used the update tool in CS_EMERGENCY mode, done with everything. now the phone is stuck on the LG logo..
I put it in recovery mode, and i used the wipe tool which was told in the guide, but the phone again stuck with a lying android bot with an exclamationary sign in a triangle.
What can I do next?
This happens.when you are not reading before. If you would do that,you would see that you need to perform a hard resetafter using kdz updater.
My advice,use the updater again and do a hard reset.on stock it's easy.
Sent from Asylum via LG E975/smart phones,dumb people.
bilalraybrig said:
Hey! I have done the download, used the update tool in CS_EMERGENCY mode, done with everything. now the phone is stuck on the LG logo..
I put it in recovery mode, and i used the wipe tool which was told in the guide, but the phone again stuck with a lying android bot with an exclamationary sign in a triangle.
What can I do next?
Click to expand...
Click to collapse
Don't know what guides you all are using
Only guide you need
1: get kdz 1.05 GB or less for your specific phone
2: using kdz flasher flash the kdz
3: if your phone boots goto backup and reset and do wipe. If not shutdown phone and do hard reset / wipe
4: root your phone And i mean just root your phone.
5: use freegee to unlock boot and get custom recovery. (If you want this)
Sent from my GT-P3100 using Tapatalk HD
U missed the hard reset!! Since kdz is dirty flashing!
This is so frustrating. I've downloaded kdz file so many times from 1.05Gb to a 0.98Gb, none gives a correct extraction in kdz update.

Need Help ASAP

I tried to root my LG G4 Verizon variant. The root went smoothly but once checked with root checker it was rooted incorrectly. I am now trying to flash the stock kdz but isn't working. Gets stuck at 15% or 60%. Also a message keeps popping up to reconnect device with usb when its already connected and cable is working fine. Need help ASAP!!!!!
Did you use the flash tool choosing CSE or normal?
I tried both
stvy_g said:
I tried both
Click to expand...
Click to collapse
What firmware, 11A? (I mean before trying to root)
Download mode is working, do you have the 11A rooted image still on internal? If so, try doing the root again. But KDZ should work unless you were updated to 12A.
I'll try and root again thank you

Died during firmware update

Hi,
My LG G3 died during the night when a firmware update started and the battery was low.
Now the phone isn't booting. It gets stuck at the LG logo.
I can put the phone into download mode but not much else. It it's recognized by any PC I've plugged it into.
The main issue here is that I need to recover some very important data that hasn't been backed up (ye I know stupid). I've searched and searched but all I get are some iffy maybes mostly regarding some Samsung phones so.
You can try a using a linux os on pc sometime it can still pick up ure drives
Thanks I'll try.
Unfortunately I don't use Linux or know anyone that does outside of work so it will take a while.
In the meantime if anyone else has suggestions I'm all ears!
Now r u rooted with twrp
The phone is 100% stock
Just flash stock kdz in a normal mode not cse flash but you have to select exact firmware you had ....so you dont loose any data...hope it helps
Anik49 said:
Just flash stock kdz in a normal mode not cse flash but you have to select exact firmware you had ....so you dont loose any data...hope it helps
Click to expand...
Click to collapse
How would I even know what exact firmware I had?
The phone actually booted up when started into download mode and gave the 'firmware update' screen but just stuck at 0%
Ok...try to flash what firmaware version you had before software update....i think ota not installed properly...if it doesn't work try to flash latest firmware for your phone...means which version coming as ota for your phone....also remember for the first time it's should be take some time to start.if both not working you have to do a cse flash ?...but if you sacrifice your data....factory reset is a simple option....you don't have flash anything just search in forum how to hard reset and your problem solve,think so ?

Please help me fix LG G3 D852!

In order for my D852 to work with wind i was told to use LG Flash Tool and download the a D852 dll and use a D852G tot file.
My phone says it's from telus.
when i first started to flash my phone using those 2 file, i thought it would have been easier but instead i got into a Factory Reset 2
I tried to redo the flash but now im unable to do so. I can still get into download mode, and when i turn on the phone is automatically goes into Firmware update without having to hold the volume up button.
Here is the thread
http://forums.redflagdeals.com/can-lg-g3-d852-work-wind-mobilicity-1720993/2/#post23713657
carlos1984
My phone now read's as a D852G on the buttom of flashing firmware update and now i tried every possible method of making it work..
http://imgur.com/a/9GAel
Try using the LG PC suite from the LG website to restore it...Once you get it back, root it and flash a custom rom like Fulmics if you want stock.
My phone on Fulmics 2.7 works on Wind.

Random Reboots and Bootloops

I flashed 30c firmware with flashtool 2014 over rooted 21a (i think) on my D855 from Greece. I selected the normal flash to keep my files and apps, phone mode: DIAG and didn't clear the update registry. Phone worked normal for a week and then went into a boot loop. The phone randomly restarts and goes into loops for a while and then snaps out of it.
I have tried the following and none have fixed the issue:
-Replaced the battery.
-Upgraded to 30f over lg pc suite hoping it would fix it but it didn't.
-Flashed 30c and 30f over LG Flash tool with CS_EMERGENCY mode and cleared the updated registry.
-LG Flash tool wont flash any older lollipop kdz I tried. The phone screen flashes once but stays at 0% and then I receive a phone disconnected message.
-Put the device into safe mode and used the option on lg pc suite to fix upgrade errors. Didn't fix anything lol
-Tried factory reset. Nothing happened after I selected the yes on the confirmation.
-Tried to use LGUP hoping to install a lollipop kdz but it gives me an error message that I have to select a known model. Restarting the app and the phone didn't work either.
-Tried a guide on how to unroot and return to stock with the kitkat .tot file .
I really have no idea what else to try. Any help would be greatly appreciated.
louster35 said:
I flashed 30c firmware with flashtool 2014 over rooted 21a (i think) on my D855 from Greece. I selected the normal flash to keep my files and apps, phone mode: DIAG and didn't clear the update registry. Phone worked normal for a week and then went into a boot loop. The phone randomly restarts and goes into loops for a while and then snaps out of it.
I have tried the following and none have fixed the issue:
-Replaced the battery.
-Upgraded to 30f over lg pc suite hoping it would fix it but it didn't.
-Flashed 30c and 30f over LG Flash tool with CS_EMERGENCY mode and cleared the updated registry.
-LG Flash tool wont flash any older lollipop kdz I tried. The phone screen flashes once but stays at 0% and then I receive a phone disconnected message.
-Put the device into safe mode and used the option on lg pc suite to fix upgrade errors. Didn't fix anything lol
-Tried factory reset. Nothing happened after I selected the yes on the confirmation.
-Tried to use LGUP hoping to install a lollipop kdz but it gives me an error message that I have to select a known model. Restarting the app and the phone didn't work either.
-Tried a guide on how to unroot and return to stock with the kitkat .tot file .
I really have no idea what else to try. Any help would be greatly appreciated.
Click to expand...
Click to collapse
Replace the battery
I have the same problem and i got into the problem for the same reason.... the random rebooting that everyone says is down to the battery is something more sinister... i have tried 4 different batterys that work perfectly and it still happened i flashed a kdz and now i have a bootloop and no OS none of the other kdz files work neither do the tot files and lgup doesnt recognise my device... stuck...
Anik49 said:
Replace the battery
Click to expand...
Click to collapse
That's the first thing I tried on my list of failed attempts to fix the problem as you can see... Brand new battery. No change.
DjCaprio tried 4 different batteries as you can see.
This is just terrible!
louster35 said:
That's the first thing I tried on my list of failed attempts to fix the problem as you can see... Brand new battery. No change.
DjCaprio tried 4 different batteries as you can see.
This is just terrible!
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-...to-lp-using-lg-t3283912/post64597779......try to use this for flashing lolipop kdz...see what happen.
Anik49 said:
http://forum.xda-developers.com/lg-...to-lp-using-lg-t3283912/post64597779......try to use this for flashing lolipop kdz...see what happen.
Click to expand...
Click to collapse
I tried removing the battery while connected to the pc via usb already. The other trick that involves editing a file requires root.
My phone started flashing the blue screen of death today so I finally took it to LG so they can check it out. Either way thanks for trying to help.

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