How can I Install CM in Bootloader Mode? - G2 Q&A, Help & Troubleshooting

Until today I had the impression that my LG G2 was done.
You see, a year ago I had this problem with an update, I carry the phone to my carrier as was under warranty, the Fixed the problem but after that I couldn't boot in recovery mode.
No Power and Volume Down or Up Working, nor the 3 times power combination and then I've just came across this boot into bootloader instructions that I didn't know about it.
Code:
Bootloader: With the device powered down, plug in a USB cable while pressing Volume Up.
Which works like a charm.
So can somebody please point me in the right direction to Install CM13 in bootloader mode?
Best regards

you can't, you can only flash a stock rom in download mode

mi_guel69 said:
you can't, you can only flash a stock rom in download mode
Click to expand...
Click to collapse
Hummm, interesting.
Maybe I could Install a Stock ROM that comes with a recovery and then install CM, plausible?

Nehemoth said:
Hummm, interesting.
Maybe I could Install a Stock ROM that comes with a recovery and then install CM, plausible?
Click to expand...
Click to collapse
first tell variant and what version of android you have

raptorddd said:
first tell variant and what version of android you have
Click to expand...
Click to collapse
LG G2 (D805).
4.4.2 Stock
Build KOT49I

Nehemoth said:
LG G2 (D805).
4.4.2 Stock
Build KOT49I
Click to expand...
Click to collapse
steps are like this.
you are on KK, you need to search for files as that variant i dont know..
you must root phone and install custom recovery
so cehck here for root..
http://forum.xda-developers.com/showpost.php?p=63327417&postcount=4
when you rooted. then proceed to install twrp. use the same link above and look in recovery
click on recovery.. remeber you are in KK so use the one for kitkat dont use Lollipop.
when you find recovery install it..when you have it installed. update it with this one
2.8.7.3
http://forum.xda-developers.com/lg-g2/development/twrp-twrp-2-8-0-0-kernel-f2fs-tools-t2898705
install bootstacks for your variant. 5.02 KK bumped.
http://forum.xda-developers.com/lg-g2/development/lg-g2-bootstacks-t3173715
then you need to find a flashable rom in zip format.. for d805. lollipop. once you flashed it and are in stock lollipop
then find root for lollipop use the links above , i thnk theres root for LP.
when roo is rooted then go to playstore and download autorec for lollipop for your variant..
install and install twrp.. update it with 2.8.7.3 thermal one..
then install hybrids bootsacks. for your variant
http://forum.xda-developers.com/lg-g2/development/boot-g2-hybrid-bootstacks-t3183219
when installing hybrid.. reboot from recovery into recovery again to take effect ... then flash rom and gapps for cm13.

Already rooted. Will check the instructions, overall the one about the recovery...as I said before I don't have a recovery options, when I install TWRP and try to reboot into the recovery mode the phone just reboot.
I believe you gave me the instructions to fix this, fix the recovery, will follow your instructions and will be back.
Thank you for your time.

If it doesn't work try to install the stock kk again and do all the above process again

Related

[Q] Instaling Recovery

I have a rooted D802 and I wanted to install recovery. I'd surf and search and tried a few solutions but without success. Everytime It stuck on boot and black screen with some error message about bootloader. I've tried TWRP and Philz, nothing. I have KK D80220B_00 (A6HUBK).
How can I install custom recovery?
sidzim said:
I have a rooted D802 and I wanted to install recovery. I'd surf and search and tried a few solutions but without success. Everytime It stuck on boot and black screen with some error message about bootloader. I've tried TWRP and Philz, nothing. I have KK D80220B_00 (A6HUBK).
How can I install custom recovery?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2715496
This tool downgrade KK bootloader and install patched kernel because KK bootloader can't be lokifiable and KK kernel can't boot on JB bootloader. And that's why you couldn't install a recovery.
6ril1 said:
http://forum.xda-developers.com/showthread.php?t=2715496
This tool downgrade KK bootloader and install patched kernel because KK bootloader can't be lokifiable and KK kernel can't boot on JB bootloader. And that's why you couldn't install a recovery.
Click to expand...
Click to collapse
Had the same pb. Ended up using autorec app.
I will advise to read the thread first. Some people experienced issue while doing it. I didn't, what I did is I downloaded paranoid android and flashed as soon as I used the app.
I have a D803 but it should be similar.
mys1 said:
Had the same pb. Ended up using autorec app.
I will advise to read the thread first. Some people experienced issue while doing it. I didn't, what I did is I downloaded paranoid android and flashed as soon as I used the app.
I have a D803 but it should be similar.
Click to expand...
Click to collapse
Autorec was what i talked about and linked too : )
My bad! I will be honest, I haven't followed the link. Will do next time :thumbup:
Recovery
Thanks all, I'll try ...
mys1 said:
My bad! I will be honest, I haven't followed the link. Will do next time :thumbup:
Click to expand...
Click to collapse
And it's you who received the thank's....

Lost TWRP

Verizon LG G2
Rooted
Installed TWRP
Without thinking (doink) tried to install the latest OTA.
OTA failed.
Now I cannot reboot into TWRP.
Installed ClockwordMOD and installed its own custom recovery. Still won't boot into any custom recovery.
Phone works fine other than that.
How can I get back into custom reccovery?
Note: When I turn phone off and try to reboot into custom recovery it takes me to the "reset" screen.. and then IT RESETS the phone.
When I try to boot into recovery from Clockwork or TWRP app it gives me the android robot with the open tummy and red triangle.
Danokan said:
Verizon LG G2
Rooted
Installed TWRP
Without thinking (doink) tried to install the latest OTA.
OTA failed.
Now I cannot reboot into TWRP.
Installed ClockwordMOD and installed its own custom recovery. Still won't boot into any custom recovery.
Phone works fine other than that.
How can I get back into custom reccovery?
Note: When I turn phone off and try to reboot into custom recovery it takes me to the "reset" screen.. and then IT RESETS the phone.
When I try to boot into recovery from Clockwork or TWRP app it gives me the android robot with the open tummy and red triangle.
Click to expand...
Click to collapse
The OTA update installed the KitKat bootloader, which hasn't been hacked for custom recovery yet.
Use this to downgrade the only the bootloader and install custom recovery: http://forum.xda-developers.com/showthread.php?t=2715496
You have to root frist. You can use IORoot25 to root the KitKat rom that you have now: http://forum.xda-developers.com/showpost.php?p=48709232
Amro90 said:
The OTA update installed the KitKat bootloader, which hasn't been hacked for custom recovery yet.
Use this to downgrade the only the bootloader and install custom recovery: http://forum.xda-developers.com/showthread.php?t=2715496
You have to root frist. You can use IORoot25 to root the KitKat rom that you have now: http://forum.xda-developers.com/showpost.php?p=48709232
Click to expand...
Click to collapse
Ok.
The KITKAT rom didn't install properly..
Phone says 4.2.2
Super user and apps that need root to work are working properly. Looks like the bootloader is the only thing that got hit.
Danokan said:
Ok.
The KITKAT rom didn't install properly..
Phone says 4.2.2
Super user and apps that need root to work are working properly. Looks like the bootloader is the only thing that got hit.
Click to expand...
Click to collapse
Oh. Not sure if AutoRec works if you are still on 4.2.2. Sorry bout that.
If it doesn't work, you can always just manually flash the complete firmware using this guide: http://forum.xda-developers.com/showthread.php?t=2432476. Surest way to get back from failed flashes. You can flash the full 4.2.2 or 4.4.2 KDZ and then start over again. That method wipes everything though.
Amro90 said:
Oh. Not sure if AutoRec works if you are still on 4.2.2. Sorry bout that.
If it doesn't work, you can always just manually flash the complete firmware using this guide: http://forum.xda-developers.com/showthread.php?t=2432476. Surest way to get back from failed flashes. You can flash the full 4.2.2 or 4.4.2 KDZ and then start over again. That method wipes everything though.
Click to expand...
Click to collapse
YIKES.
Well.. it got the TWRP recovery loaded alright.
But it won't boot into anything else...light is flashing but screen is black.
HELP
I am screwed here.
#1. Tried the "unbrick stock" solution. Can NOT get it to work. I tried it all 3 ways given and it gets to the LG driver start... and then it says I am up to date. I tried to change the country, the language, upgrade recovery, can NOT get it to work.
#2. I can get TWRP to load. But I can't get my computer to recognize my phone so I can move a rom over
#3. I can't get ADB to recognize my phone.
HEEEEEEEEEEEEEEEEEEEEEEELP
Danokan said:
HELP
I am screwed here.
#1. Tried the "unbrick stock" solution. Can NOT get it to work. I tried it all 3 ways given and it gets to the LG driver start... and then it says I am up to date. I tried to change the country, the language, upgrade recovery, can NOT get it to work.
#2. I can get TWRP to load. But I can't get my computer to recognize my phone so I can move a rom over
#3. I can't get ADB to recognize my phone.
HEEEEEEEEEEEEEEEEEEEEEEELP
Click to expand...
Click to collapse
save yourself the hassle flash stock 4.4.2 KK, use IORoot25 to root and then use Autorec to install Custom recovery.
Time needed 1 hour.
Hartendief said:
save yourself the hassle flash stock 4.4.2 KK, use IORoot25 to root and then use Autorec to install Custom recovery.
Time needed 1 hour.
Click to expand...
Click to collapse
How do you propose I flash it?
SOLVED
FIXED
http://forum.xda-developers.com/showthread.php?t=2448960

Help with AT&T LGG2 .. stuck in mud

Problem: Can't boot into OS on my D800. When booting the screen stays at LG logo and LED keeps flashing green and blue.
Hisotry:
1) Had original AT&T D800 not rooted, no recovery. Got OTA upgrade to Lollipop.
2) Got new phone so decide to debloat to give phone to my wife (on T-mobile)
3) Read xda forums. Downgraded to d80010o using LG flash utility. rooted. installed older version of twrp using autorec. now phone won't boot but can get into download/twrp
4) got into firmware download mode and flashed d80010d using lg flash utility. this time copied new twrp on sdcard and stripped version of rom (http://forum.xda-developers.com/att-g2/development/rom-stock-lollipop-30b-stripped-t3144195) along with dorilp kernel
5) went back to twrp. flashed stripped rom and kernal.
Still no dice. Exact same situation. I can get into download mode/twrp but when booting system gets stuck on LG logo with led slowly flashing.
what am I doing wrong ?
Are you able to get into recovery? With a lolipo ROM you have to download KitKat boot stack or simply download blastgator lollipop ROM patch from here http://blastagator.ddns.net
hoolahoous said:
Problem: Can't boot into OS on my D800. When booting the screen stays at LG logo and LED keeps flashing green and blue.
4) got into firmware download mode and flashed d80010d using lg flash utility. this time copied new twrp on sdcard and stripped version of rom (http://forum.xda-developers.com/att-g2/development/rom-stock-lollipop-30b-stripped-t3144195) along with dorilp kernel
5) went back to twrp. flashed stripped rom and kernal.
Still no dice. Exact same situation. I can get into download mode/twrp but when booting system gets stuck on LG logo with led slowly flashing.
From what I read in the OP of that ROM, you're supposed to just flash the rom zip, boot up, go back into recovery and flash the kernel.
"To install ROM, just flash the zip! (Note: The zip isn't signed.) My zip flashes everything you need for the ROM to work correctly.
Recommended: Flash @dorimanx kernel after install. My zip includes stock 30f kernel."
Maybe that's the problem?
Click to expand...
Click to collapse
okay.. installed the patch. still no dice. still getting same stuck at LG logo with led flashing.
also dorimanx kernal is installed. still getting the issue. btw i am not married to this ROM. Any AT&T rom will work. I think there is some mismatch of bootloader/kernal/rom and what not.
what things I can check ?
pulling my hair out.
whatever rom I install using twrp it gets stuck on LG logo. i think i see some message about not being able to unmount /system (but rest of install succeeds).
only way I can get back in OS is to use LG flash utility and flash d80010d or d80010o which basically wipes away everything (recovery, root etc).
assuming I am on stock d80010d, can someone please give idiot proof step by step direction (do i need to check modem version/baseband/bootloader/radio/recovery versions or something to make sure it is compatible ?)
Do you have download mode?
Sent from my LG-D800 using Tapatalk
xmayhemreturnsx said:
Do you have download mode?
Sent from my LG-D800 using Tapatalk
Click to expand...
Click to collapse
yes I do ..
Ok flash back via tot to kitkat and take ota to lollipop. Then use autorec v2. *Do not use the twrp thats comes autorec as it does not flash roms* flash a BUMPED twrp using twrp. Then install your lolipop rom then afterwards install the dormainx d800 lollipop patch just for safe measure but it should work without flashing it.
Sent from my LG-D800 using XDA Free mobile app
xmayhemreturnsx said:
Ok flash back via tot to kitkat and take ota to lollipop. Then use autorec v2. *Do not use the twrp thats comes autorec as it does not flash roms* flash a BUMPED twrp using twrp. Then install your lolipop rom then afterwards install the dormainx d800 lollipop patch just for safe measure but it should work without flashing it.
Sent from my LG-D800 using XDA Free mobile app
Click to expand...
Click to collapse
thanks for suggestion.. but once I take LP OTA, how will i use autorec ? I thought LP can't be rooted and custom recovery can't be flashed.
also all I can find is Autorec not autorec v2.
hoolahoous said:
thanks for suggestion.. but once I take LP OTA, how will i use autorec ? I thought LP can't be rooted and custom recovery can't be flashed.
also all I can find is Autorec not autorec v2.
Click to expand...
Click to collapse
Yeah it can be rooted. Download stumproot and install it, follow it thru the steps and do the brute force root. Takes a few minutes but it works. I've done it on stock a couple of times. Get autorec v2 on playstore.
Really now said:
Yeah it can be rooted. Download stumproot and install it, follow it thru the steps and do the brute force root. Takes a few minutes but it works. I've done it on stock a couple of times. Get autorec v2 on playstore.
Click to expand...
Click to collapse
i just read that stumproot is not supported anymore..
Actually instead of stumproot, use srk tool to root stock lollipop. I have had success with that.
Sent from my LG-D800 using XDA Free mobile app

[HELP][6.0.1][CM] How can I flash a Recovery in MARSHMALLOW

Hello.
I have a D805 LG G2, flashed with CM 13.0 Nightly. [Running 6.0.1]
The problem is THERE'S NO RECOVERY. [Wait...What?]
From the Start:
-CSE Flash
-Flashed CM 13.0 [using Bumped TWRP from AutoRec]
Now I can't update my CM 13.0, because everytime that boot into recovery gives the SecureBoot error.
I can't loki because of unsupported aboot error. (Some users said that Loki was patched in 4.4)
I found AutoRec type for D855 (MarshMellow) but there's no version for D805 (or D802)
Tryed "dd" but not working.
All the apps in playstore don't work.
There's no way to flash TWRP now? I don't want to CSE Flash again and lose all my data.
[If anyone want some files from D805, pm me. Links for Aboot.img or such.] [I almost started porting D805 for CyanogenMod but got no time to do it.]
ShadowyKitsune said:
Hello.
I have a D805 LG G2, flashed with CM 13.0 Nightly. [Running 6.0.1]
The problem is THERE'S NO RECOVERY. [Wait...What?]
From the Start:
-CSE Flash
-Flashed CM 13.0 [using Bumped TWRP from AutoRec]
Now I can't update my CM 13.0, because everytime that boot into recovery gives the SecureBoot error.
I can't loki because of unsupported aboot error. (Some users said that Loki was patched in 4.4)
I found AutoRec type for D855 (MarshMellow) but there's no version for D805 (or D802)
Tryed "dd" but not working.
All the apps in playstore don't work.
There's no way to flash TWRP now? I don't want to CSE Flash again and lose all my data.
[If anyone want some files from D805, pm me. Links for Aboot.img or such.] [I almost started porting D805 for CyanogenMod but got no time to do it.]
Click to expand...
Click to collapse
you think flashify will work?
raptorddd said:
you think flashify will work?
Click to expand...
Click to collapse
Nope.
All the recovery options in flashify gives the same SecureBoot error.
ShadowyKitsune said:
Nope.
All the recovery options in flashify gives the same SecureBoot error.
Click to expand...
Click to collapse
then am not sure how to go from there. maybe go back to stock using kdz.
use autorec lollipop from playstore
TheBlackStig said:
use autorec lollipop from playstore
Click to expand...
Click to collapse
Yes. Now I can boot to TWRP, but gives me a bootloop then automatically boots me into TWRP. Must be another way than this.
Well, after work I will flash the Latest CM 13.0 Nightly.
raptorddd said:
then am not sure how to go from there. maybe go back to stock using kdz.
Click to expand...
Click to collapse
Nah, Normal Flash on KDZ always give me a bootloop.
Why there's a file named G2_Security on Zips with Custom Recovery?
ShadowyKitsune said:
Yes. Now I can boot to TWRP, but gives me a bootloop then automatically boots me into TWRP. Must be another way than this.
Well, after work I will flash the Latest CM 13.0 Nightly.
Nah, Normal Flash on KDZ always give me a bootloop.
Why there's a file named G2_Security on Zips with Custom Recovery?
Click to expand...
Click to collapse
for the bootloop did you installed hybridbootstacks that should get it going. i think
if not make sure you clean wipe, and install hybrid, then go to main menu reboot into twrp from twrp then continue to flash rom and gapps
http://forum.xda-developers.com/lg-g2/development/boot-g2-hybrid-bootstacks-t3183219
not sure about the security zip.. sorry
raptorddd said:
for the bootloop did you installed hybridbootstacks that should get it going. i think
if not make sure you clean wipe, and install hybrid, then go to main menu reboot into twrp from twrp then continue to flash rom and gapps
http://forum.xda-developers.com/lg-g2/development/boot-g2-hybrid-bootstacks-t3183219
not sure about the security zip.. sorry
Click to expand...
Click to collapse
Okay.
Going to flash it right now.
Another question, Do F2FS gives a performance boost in LG Phones? Because there's this post about a benchmark using EXT4 in one phone and F2FS in the other...
EDIT: G2_Security files seems to do nothing, just stands like a random file in my /sdcard/
EDIT2: Another question, what's better: TWRP or CyanogenMod Custom Recovery?
EDIT3: Ugh, Recovery with TWRP works but "crashes" on startup and goes back to android.
ShadowyKitsune said:
Okay.
Going to flash it right now.
Another question, Do F2FS gives a performance boost in LG Phones? Because there's this post about a benchmark using EXT4 in one phone and F2FS in the other...
EDIT: G2_Security files seems to do nothing, just stands like a random file in my /sdcard/
EDIT2: Another question, what's better: TWRP or CyanogenMod Custom Recovery?
EDIT3: Ugh, Recovery with TWRP works but "crashes" on startup and goes back to android.
Click to expand...
Click to collapse
yes it does i guess a little performance but it does.
twrp from blastagator as it has thermal control so you dont heat up your screen and burn it or damaged.
not sure maybe youll need to go back to stock.
raptorddd said:
yes it does i guess a little performance but it does.
twrp from blastagator as it has thermal control so you dont heat up your screen and burn it or damaged.
not sure maybe youll need to go back to stock.
Click to expand...
Click to collapse
Yeah, I saw that in his website. F2FS gave me a fix on stuttering.
Going to try dd method later.

hi

i install dlpkgfile force fota to my d800 outise the us
now i cnat get acces to wiffi and not reconize by comuter!pleasse help!
evyater said:
i install dlpkgfile force fota to my d800 outise the us
now i cnat get acces to wiffi and not reconize by comuter!pleasse help!
Click to expand...
Click to collapse
you want LP.? is that file to update to lollipop? if so ill help you..
sure this is the probelm??does it needed for sure after the dlpkfile?coz in the guaide i go with they didnt say nothing about it
and if u sure about it
so have a guiade for it?
iam at&t otside the us
udate by fota dlpkfile...
evyater said:
sure this is the probelm??does it needed for sure after the dlpkfile?coz in the guaide i go with they didnt say nothing about it
and if u sure about it
so have a guiade for it?
iam at&t otside the us
udate by fota dlpkfile...
Click to expand...
Click to collapse
same i have d800 outside US.
this is what i do. not sure where you at.? if you in stock KITKAT then just do the rest of steps.
but basically i go back to stock to KK using flashtools. with this guide. asuming you can enter into download mode.
http://forum.xda-developers.com/showthread.php?t=2663369
once you flash TOT method suscesfully. and had phone root and autorec for KK installed
then update you twrp with thermal twrp from blastagator..
http://forum.xda-developers.com/lg-g2/development/twrp-twrp-2-8-0-0-kernel-f2fs-tools-t2898705
then download bootstacks 5.0.2 Bootstack with KitKat (Bump) bootloader:
http://forum.xda-developers.com/lg-g2/development/lg-g2-bootstacks-t3173715
while you are in KITKAT and have rooted, and thermal twrp installed.
enter recovery twrp.
wipe all (move your pics and important files to pc while in twrp)
flash the 5.0.2 Bootstack with KitKat (Bump) bootloader:
go to main menu in twrp. then reboot into recovery again DONT REBOOT INTO SYSTEM.
then copy this flashable KDZ stock rom it already has root integrated. copy to phone while in twrp
http://forum.xda-developers.com/att-g2/development/rom-t3152368
flash it in twrp. this will install stock rooted 5.02 LP.
to install another rom a stock base.. simply install autorec for lollipop in the playstore
install tqrp with autorec for lollipop
update the twrp with the thermal one from blastagator..
if you want like stock based rom just wipe dalvik/cache/system and data/ and or sd card.
then copy rom while in twrp and install...

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