[Q] Bootloop after successfull downgrade to JB - G2 Q&A, Help & Troubleshooting

Hi all,
i have sucessfully flashed the german 10E, because i wanted custom recovery and so on for kitkat.
but after the sucess in flashing i get a bootloop, where i see the lg logo and the boot animation but then it reboots and reboots and reboots :crying:
maybe someone has a tip? i tried to factory reset it, but i dont know how to enter stock recovery or hard reset mode
Edit: when i flash back to 20b via kdz method, i have everything as before, nothing erased ,so the kdz method doesnt wipe anything???

After flashing the 10e, you have to do a full erase to avoid the bootloop.
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---------- Post added at 11:25 PM ---------- Previous post was at 11:23 PM ----------
http://youtu.be/3ogBvzbPikc
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But how do i do it? I mean stock recovery doesnt seem to work, or how do you mean? Whats the kombo i have to press or the tool i have to use?
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You have to start with button combination to go to recovery. Power Button and Level Down Hold until LG is in Display. Then short release the two buttons and press again.
When you have stock recovery than you get asked to do "Factory Hard Reset"
Press two times Power button and al is resetted.
Then bootloop is gone normaly.

Thank you, i just didnt press a second time
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Related

[Q] Restoring original ROM E612

Hi guys, I'm using CM10 in my L5 E612, but I've getting some issues and I've decided back to stock ROM, I already downloaded the KDZ and I have the tool called KDZ Updater, but in the tutorials that I've founded they said that I need to enter in "Emergency Mode", but my phone don't enter in emergency mode, when I press the keys the phone just blink the lights once, there is another way that I can back to stock ROM ?
Are you pressing just Volume - button? Or both (+ and -)? First you need to flash a kdz to downgrade to V10,then you can flash a V20 version
Enviado desde mi LG-E610 usando Tapatalk 4
Stop pressing the power button when lights turn on.
And downgrade to v10 is not required. You can flash v20 over v20.
---------- Post added at 11:57 PM ---------- Previous post was at 11:56 PM ----------
chrisdlc119 said:
First you need to flash a kdz to downgrade to V10,then you can flash a V20 version
Enviado desde mi LG-E610 usando Tapatalk 4
Click to expand...
Click to collapse
Where did you hear it, my bro?
DevastatingTech said:
Stop pressing the power button when lights turn on.
And downgrade to v10 is not required. You can flash v20 over v20.
---------- Post added at 11:57 PM ---------- Previous post was at 11:56 PM ----------
Where did you hear it, my bro?
Click to expand...
Click to collapse
Well, in my experience LOL
Enviado desde mi LG-E610 usando Tapatalk 4
chrisdlc119 said:
Are you pressing just Volume - button? Or both (+ and -)? First you need to flash a kdz to downgrade to V10,then you can flash a V20 version
Enviado desde mi LG-E610 usando Tapatalk 4
Click to expand...
Click to collapse
Thanks for the answer, I'm pressing both the buttons (+ and -) and hold the power button at the same time, If I want flash the kdz I just need press the - button ?
Unfor80 said:
Thanks for the answer, I'm pressing both the buttons (+ and -) and hold the power button at the same time, If I want flash the kdz I just need press the - button ?
Click to expand...
Click to collapse
for download mode , press vol + and - and plugin the USB cable which is already connected to your pc
stuck
Hi, I've tried to put stock firmware using KDZ tool, after the process has finished, the smartphone keep stucked on LG boot logo, I already do the hard reset and keeps stuck on logo, someone knows what else can I do ?
Unfor80 said:
Hi, I've tried to put stock firmware using KDZ tool, after the process has finished, the smartphone keep stucked on LG boot logo, I already do the hard reset and keeps stuck on logo, someone knows what else can I do ?
Click to expand...
Click to collapse
Thanks for the help guys, I managed the problem, I just use adb to fix this, indeed, I just type: adb reboot recovery .

[Q] Question-How do I boot into recovery?

So I installed TWRP on my vzw G2 and I don't know the button combo to boot back into it. Any help with this would be greatly appreciated.
I too would like to know
Sent from my VS980 4G using Tapatalk
You can use GooManager to reboot into recovery. But I don't know how to do it when the phone is off.
From another thread:
For TWRP press and hold the power and volume down button. When the LG logo pops up let go for a second and press the combo again. You'll be prompted to press the power button 3 times to wipe the device. Then It'll boot into TWRP without wiping.
Click to expand...
Click to collapse
That'd be it!
P.S.
It works! All you need is a little bit of practice.
You can also use an app called Rebooter. Works well.
When entering recovery with hardware keys I have read people having problem with twrp installed. Is it completly safe now?
It works if you are on the latest version.
Sent from my LG-D800 using Tapatalk
---------- Post added at 06:55 PM ---------- Previous post was at 06:53 PM ----------
2.6.3.2
Sent from my LG-D800 using Tapatalk

LG G2 stuck at "Fastboot Mode started udc_started()"

Hi everyone. A friend of mine has got a problem with his G2:
I have an LG G2 D802 with rayglob flex 3.5 custom rom. Yesterday I tried to install a custom kernel (dorminax 2.1):
1) I downloaded the kernel for lg g2 802
2) entered in twrp recovery
3) Instal - Flash of kernel 2.1
4) after a few seconds a "Succesfull" message appeared
5) I rebooted
6) phone got stuck with: Fastboot Mode started
udc_started()
at the top left corner
Click to expand...
Click to collapse
He said that he can't enter the recovery anymore by pressing volume down + power, it doesn't work.
Have you guys any tips? He'd like to recover his data as well...
I guess u installed the wrong version of Dorimanx, download the correct version
Sent from my LG-D802 using XDA Premium 4 mobile app
How to flash it if the device doesn't boot even in recovery?
It'll boot into recovery, just hold and press power and vol down key and reboot.
Sent from my LG-D802 using XDA Premium 4 mobile app
I'll tell him to keep trying, maybe i'ts just a timing issue. Thanks.
So, the suggestion is... boot into recovery, then...? Wipe everything and restore the backup (if there's one)?
Well he can push the correct kernel via adb and flash it
Sent from my LG-D802 using XDA Premium 4 mobile app
He's not too used to this kinda things (me neither). How can this be done?
It's easy, well Google it, u will find videos explaining the same
Sent from my LG-D802 using XDA Premium 4 mobile app
there is a thread to make your phone "back to stock", then you will be fine.
Sent from my LG-D800 using XDA Premium 4 mobile app
Thanks everyone! He successfully entered into recovery (just wrong timing I guess) and flashed the right kernel (located on an usb pen drive attached with otg cable).
He thank you very much.
jaidev.s said:
It'll boot into recovery, just hold and press power and vol down key and reboot.
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
My phone has done the same thing an when I hit the buttons to go to recovery mode, recovery mode just flashes up an it goes back to the fastboot screen again
I was having the same issue... Until I noticed that it was the power cable that was messing with my attempts to enter recovery!
So here I leave my tip! Do the power button combination without any connection! :good:
jaidev.s said:
It'll boot into recovery, just hold and press power and vol down key and reboot.
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Mine won't boot into anything, it immediately cuts into fastboot mode
---------- Post added at 09:29 PM ---------- Previous post was at 09:27 PM ----------
larryb723 said:
My phone has done the same thing an when I hit the buttons to go to recovery mode, recovery mode just flashes up an it goes back to the fastboot screen again
Click to expand...
Click to collapse
Were you able to successfully get in recovery mode? I try to combo multiple times and it still goes straight to fastboot mode
indyvette said:
Mine won't boot into anything, it immediately cuts into fastboot mode
---------- Post added at 09:29 PM ---------- Previous post was at 09:27 PM ----------
Were you able to successfully get in recovery mode? I try to combo multiple times and it still goes straight to fastboot mode
Click to expand...
Click to collapse
Can you enter download mode? If not you should also use fastboot to flash your partitions.
indyvette said:
Mine won't boot into anything, it immediately cuts into fastboot mode
---------- Post added at 09:29 PM ---------- Previous post was at 09:27 PM ----------
Were you able to successfully get in recovery mode? I try to combo multiple times and it still goes straight to fastboot mode
Click to expand...
Click to collapse
is your problem solved yet?
I have just flashed the wrong kernel due to my carelessness and complacency and managed to fix this issue thanks to this thread!
Make sure no power cables are plugged in as it will interfere the process to boot into recovery mode.
Hold power button down until the phone is completely off, keep holding it there for another 10 seconds.
Hold volume down and power button together now until LG screen comes out. let go of power button only
If all goes well you should see TWRP recovery and thank TWRP team for their great work!
There's a Dorimanx app in the store so this doesn't happen.
flashed the right kernel (located on an usb pen drive attached with otg cable) sorry how to do it ? any link ? thanks
Ram
jaidev.s said:
It's easy, well Google it, u will find videos explaining the same
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
well google knows it... u don't know i hope so...

[Q] Dead lg g2 ?

hi guys, im new here from israel so my english is not that good
(please read all,please ?
Enter your PIN/PASSWORD to decrypt. that what i see when i turn on the phone. ill start from the begining ..
i installed TWRP with autorec and it sucseeded but the my big problem was that i think it ruiend my partition order or somthing..
i have 32gb lg and it wrote me 10.1gb..
so i started loking the net and i found this tourital :http://www.droidviews.com/your-32gb-lg-g2-shows-only-16gb-storage-space-heres-the-fix/
and it didnt worked.. so i started playing with Minimal ADB Fastboot tool that was on that guide.. typed adb print and saw ALL of my partitions..
saw userdata .. thought its my .. "hidden" storage. i was wrong,i guess and removed that partition
after that i turned on the phone.. lg boot and saw that.. sentence.."Enter your PIN/PASSWORD to decrypt"
i tried to get into safemode not working
i tried to get into recovery mode using all the frking buttens only one worked power+dwn btn and then relese and press dwn+up
yay ! factory data reset ! i see the android logo for 3 sec then ? DOWNLOAD MODE. WTTTTh.
i tried to flash with LGFLASHTOOL.
ERROR:userdata partition was changed.
LAF retrieveGPT() failed.
also tried this guide:http://forum.xda-developers.com/showthread.php?t=2582142
after ls /dev/sd*.. nothing
guys,i really need ur help im hopless please HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
To enter recovery you have to press and hold volume up and power...
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Matze060906 said:
To enter recovery you have to press and hold volume up and power...
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Click to expand...
Click to collapse
Thats not correct. From complete turned off phone hold power and vol down.when lg logo appears release and instant hold again till factory screen.3 x power and then recovery comes. Dont know the behavior if a usb cable is plugged in on pc.
Sent from my LG-D802 using XDA Premium 4 mobile app

Bricked LG G2 D802; Need help

i tried to install BlissPop on it, seems like i failed.
its stuck on the BlissPop logo, that **** keeps spinning around and its staying there for hours.
Recovery mode not working, when i enter download mode, i hear the beep on my PC (when an USB connection is detected) but if i go to Device Manager > Portable Devices > LG G2's G2 > Properties > Device status is "This device cannot start. (Code 10)" so LG Flash Tool 2014 wont work.
please help me
Edit: Apparently i cant even reach download mode. When i hold volume up + plug in the USB cable i get to a screen where it shows a battery charging. Thats not download mode i dont know what to do with it ..
Edit2: Now whenever i try to boot it it gets to the LG logo > black screen > LG logo > black screen > LG logo > repeat
i dont even know how to turn it off -.-
Press the power button and hold till it's off without any sub connected to it
Sent from my LG-D802 using Tapatalk
---------- Post added at 04:20 PM ---------- Previous post was at 04:19 PM ----------
And try to go to download mode
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khedr30000 said:
Press the power button and hold till it's off without any sub connected to it
Sent from my LG-D802 using Tapatalk
---------- Post added at 04:20 PM ---------- Previous post was at 04:19 PM ----------
And try to go to download mode
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
download mode is Volume up + connect USB cable, right? if so, that doesnt work. i get to a screen where it shows me a battery icon charging
Ok then it's a pc problem u should install LG drivers on another pc or reinstall Windows then LG drivers then try again
Sent from my LG-D802 using Tapatalk
khedr30000 said:
Ok then it's a pc problem u should install LG drivers on another pc or reinstall Windows then LG drivers then try again
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
but i can hear the beep when my phone boots after connecting the usb cable
When you try to start the phone normally is the LG logo shows up and did u try the power and volume down to enter recovery
Sent from my LG-D802 using Tapatalk
khedr30000 said:
When you try to start the phone normally is the LG logo shows up and did u try the power and volume down to enter recovery
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
yes i did, it wont work.
How did u do it
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---------- Post added at 05:07 PM ---------- Previous post was at 05:03 PM ----------
Did you enter recovery mode by power and volume down key before or it is the first time u do that
Sent from my LG-D802 using Tapatalk
---------- Post added at 05:12 PM ---------- Previous post was at 05:07 PM ----------
And did u enter download mode before or it's ur first time
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khedr30000 said:
How did u do it
Sent from my LG-D802 using Tapatalk
---------- Post added at 05:07 PM ---------- Previous post was at 05:03 PM ----------
Did you enter recovery mode by power and volume down key before or it is the first time u do that
Sent from my LG-D802 using Tapatalk
---------- Post added at 05:12 PM ---------- Previous post was at 05:07 PM ----------
And did u enter download mode before or it's ur first time
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
i did enter download/recovery mode on it before, like few months ago.
it wont work.
I hopped on a new computer (my dad's laptop), installed the drivers, it told me the same **** at device manager: "This device cant start (10)"
Ok you should read all about Srk tool and how to go to fastboot mode and unbrick your phone. My phone was bricked in festivities last week and with searches and searches I finally Kubrick it I will send u some useful links
Sent from my LG-D802 using Tapatalk
MikeLSx said:
i did enter download/recovery mode on it before, like few months ago.
it wont work.
I hopped on a new computer (my dad's laptop), installed the drivers, it told me the same **** at device manager: "This device cant start (10)"
Click to expand...
Click to collapse
I know that you're saying it won't enter recovery mode, but are you sure you're doing it correctly? *Power off, wait a sec, press power until LG logo, let go and immediately after the LG logo, when it goes black, hold volume down and power*
Sent from my LG-D800 using XDA Free mobile app
Nigglenuts said:
I know that you're saying it won't enter recovery mode, but are you sure you're doing it correctly? *Power off, wait a sec, press power until LG logo, let go and immediately after the LG logo, when it goes black, hold volume down and power*
Sent from my LG-D800 using XDA Free mobile app
Click to expand...
Click to collapse
after the LG logo, the "Team Bliss" logo appears immediately. even if i hold volume down + power, the phone will eventually reboot and get back to the LG logo
Try this - Hold power and volume up, as soon as LG logo appears, let go of them both, press and hold them both again. You will be in recovery. Then do the full format. Did you install the correct bootstack before flashing your blisspop ROM? That could be the issue.
[The Punisher] said:
Try this - Hold power and volume up, as soon as LG logo appears, let go of them both, press and hold them both again. You will be in recovery. Then do the full format. Did you install the correct bootstack before flashing your blisspop ROM? That could be the issue.
Click to expand...
Click to collapse
i didnt install any bootstack
[The Punisher] said:
Try this - Hold power and volume up, as soon as LG logo appears, let go of them both, press and hold them both again. You will be in recovery. Then do the full format. Did you install the correct bootstack before flashing your blisspop ROM? That could be the issue.
Click to expand...
Click to collapse
also, holding power and volume up dont work. it continues to boot to the Team Bliss logo
MikeLSx said:
i didnt install any bootstack
Click to expand...
Click to collapse
Read their 2nd post and download the appropriate bootstack. Once in recovery, format everything, flash twrp 2.8.7.1 with thermal f2fs, flash bootstack, flash rom, flash gapps. reboot system. done!
How to Enter Recovery Mode on LG G2 (quick easy steps)
Press the Volume Down and the Power Button at the same time, about 2-3 seconds until the LG Logo shows.
When the LG Logo shows, release the buttons and then press and hold them again.
Keep pressing the buttons until the Recovery Mode Menu displays.
[The Punisher] said:
Read their 2nd post and download the appropriate bootstack. Once in recovery, format everything, flash twrp 2.8.7.1 with thermal f2fs, flash bootstack, flash rom, flash gapps. reboot system. done!
Click to expand...
Click to collapse
my phone is bricked, i cant do ****.
i cant flash anything, my PC dont even recognise it.
Power and volume down not volume up and wait till LG logo as a soon as it show leave them and hold them again then press power three times after the factory setting message appear
Sent from my LG-D802 using Tapatalk
---------- Post added at 06:13 PM ---------- Previous post was at 06:12 PM ----------
If nothing work then you should read this carefully and take your time and Don't worry.
http://forum.xda-developers.com/showthread.php?t=3079076
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