Database Develop

Access To Boot Partition

How to i flash a boot.img using a cwm zip?
Can't seem to be able to mount mmcblk0p9
Sent from my VS910 4G using XDA Premium App

My guess would be to use advanced restore in CWM. Just a thought though. Don't know if it will work. You're working a a new boot screen, I assume.

Haro912 said:
My guess would be to use advanced restore in CWM. Just a thought though. Don't know if it will work. You're working a a new boot screen, I assume.
Click to expand...
Click to collapse
Edits to the rooting on the boot image.
I have the boot.img file but cant figure out how to get a cmw zip updater.script file to push it back
Can i generate a new md5 that cmw would recognize?
Then i could use advanced restore.
I would rather use a zip.
Sent from my VS910 4G using XDA Premium App

Stupid double post again!

Hey k0g, just woke up, if you can upload the boot.img and pm me the link, I will make a cwm zip for you. It's kind of hard to explain but I can make it and you can check it out.
Which boot.img are you using?
Sent from my VS910 4G using xda premium

mtmichaelson said:
Hey k0g, just woke up, if you can upload the boot.img and pm me the link, I will make a cwm zip for you. It's kind of hard to explain but I can make it and you can check it out.
Which boot.img are you using?
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
Its the boot image from stock.
I extracted, edited, compiled.
Just want to push back to test.
Ill post on my server when i get access to my pc, didn't leave the boot.img on my fone
"Sent from a DC F0G"

K0G said:
Its the boot image from stock.
I extracted, edited, compiled.
Just want to push back to test.
Ill post on my server when i get access to my pc, didn't leave the boot.img on my fone
"Sent from a DC F0G"
Click to expand...
Click to collapse
That's cool, I assume for v4?
Sent from my VS910 4G using xda premium

mtmichaelson said:
That's cool, I assume for v4?
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
Yah. Nothing too fun yet.
"Sent from a DC F0G"

Found an interesting root method that's placed on the boot image.
Just playing around. Er um, learning
"Sent from a DC F0G"

K0G said:
Found an interesting root method that's placed on the boot image.
Just playing around. Er um, learning
"Sent from a DC F0G"
Click to expand...
Click to collapse
In the default.prop? It's funny that you brought this up because I have been looking into it myself the past few days lol. The only problems I see are we need a copy of the v6 boot.img, and we need a way into fastboot when on stock v6. I think if we had a way into fastboot we could just push a cwm recovery.img, boot into recovery, and flash the super user and su and set proper permissions. The only problem is I don't know how to force fastboot on the phone. It sounded like thecubed has gotten into it since he bricked his phone through it so I have messaged on how he got into it. I have already also messaged the guy that dropped us the tot file for v4 to see about v6 but haven't heard anything there.
Sent from my VS910 4G using xda premium

Well that did it.
The boot image is on my fone
Custom boot screens any one?
"Sent from a DC F0G"

K0G said:
Well that did it.
The boot image is on my fone
Custom boot screens any one?
"Sent from a DC F0G"
Click to expand...
Click to collapse
I would love one but I can't think of anything I would want at the moment. Plus, I couldn't let you make me a boot screen and not give you anything for it, since it is custom, and I'm broke right now.

Haro912 said:
I would love one but I can't think of anything I would want at the moment. Plus, I couldn't let you make me a boot screen and not give you anything for it, since it is custom, and I'm broke right now.
Click to expand...
Click to collapse
Money is not what its about.
I code for peanuts.
Let me know ......
"Sent from a DC F0G"

mtmichaelson said:
In the default.prop? It's funny that you brought this up because I have been looking into it myself the past few days lol. The only problems I see are we need a copy of the v6 boot.img, and we need a way into fastboot when on stock v6. I think if we had a way into fastboot we could just push a cwm recovery.img, boot into recovery, and flash the super user and su and set proper permissions. The only problem is I don't know how to force fastboot on the phone. It sounded like thecubed has gotten into it since he bricked his phone through it so I have messaged on how he got into it. I have already also messaged the guy that dropped us the tot file for v4 to see about v6 but haven't heard anything there.
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
Starting to get very interested in where this is heading. How would I go about getting a TOT for V6? Do I just need to get a system dump or what? I'll gladly do it.

spc_hicks09 said:
Starting to get very interested in where this is heading. How would I go about getting a TOT for V6? Do I just need to get a system dump or what? I'll gladly do it.
Click to expand...
Click to collapse
The tot would have to come from lg, but I don't even think it would be necessary if we found a way to enter fastboot mode on the factory v6 recovery. I could be wrong there, but there is only one way to find out lol!
Sent from my VS910 4G using xda premium

spc_hicks09 said:
Starting to get very interested in where this is heading. How would I go about getting a TOT for V6? Do I just need to get a system dump or what? I'll gladly do it.
Click to expand...
Click to collapse
Yes. That would do wonders.
For a system install all we really need is boot.img and system.img
Best would be the 2.3 system
"Sent from a DC F0G"

K0G said:
Well that did it.
The boot image is on my fone
Custom boot screens any one?
"Sent from a DC F0G"
Click to expand...
Click to collapse
always the Star Wars nut, maybe a Sith or Jedi Android for the boot up screen

ufkal said:
always the Star Wars nut, maybe a Sith or Jedi Android for the boot up screen
Click to expand...
Click to collapse
It would be great if you can point me to an existing boot image.
Save me a great amount of time
"Lost in DC F0G"

One-Click Fastboot Restore to recover from bootloop or softbrick

Thanks to dhacker29 for the orginal idea and script!
Check out his orginal post for the Droid Bionic here!
Also, thanks to kennethpenn for providing the files you are about to use!
You have to be unlocked to use this!!
I AM NOT RESPONSIBLE FOR ANY THING THAT HAPPENS TO YOU OR YOUR PHONE!
I will try to help as much as possible, but that does not allow you to hold me responsible for anything whatsoever.
Step 1. Download this zip file and extract it, putting all the files in a folder.
Step 2. Download the file "One-Click Fastboot Restore.zip" and extract it, putting all the files in the same folder as the one above.
Step 3. Run the .bat file and follow the instructions.
DO NOT FIX PDS PARTITION UNLESS NECESSARY! IT WILL WIPE YOUR MAC ADDRESS FOR WIFI AND BLUETOOTH!
(Found some typos, not serious. Will fix soon)

No comments yet? I take that as a good sign, I haven't screwed up the script!

What does this do? Restore a backup from fastboot
Sent from my MB860 using XDA App

I'm also curious what exactly it does. At 140k it isn't replacing very much. Does it just fix files related to booting?

Didnt run it because I'm on linux and my phone is fine, but looking at the batch file, it automates flashing the stock gingerbread rom and restores PDS via fastboot.

when I run it, it gives me AdbWinApi.dll error. any suggestions?

I ran this for ****s and giggles and it returns everything back to stock AT&T 2.3 while giving you options along the way of what exactly you wanna restore to stock? webtop, system,pds, wipe data etc. works perfectly! makes life easier really! Phone booted right up after running no problems! Thanks!

beidave said:
when I run it, it gives me AdbWinApi.dll error. any suggestions?
Click to expand...
Click to collapse
Look for that dll file on Google and put it in the folder

Javi97100 said:
What does this do? Restore a backup from fastboot
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
tapeworm_george said:
I'm also curious what exactly it does. At 140k it isn't replacing very much. Does it just fix files related to booting?
Click to expand...
Click to collapse
It restores your phone back to stock AT&T android via fastboot automatically. It also gives you the option to *fix* your pds partition.
It's also an alternative to RSD
Gutterball said:
I ran this for ****s and giggles and it returns everything back to stock AT&T 2.3 while giving you options along the way of what exactly you wanna restore to stock? webtop, system,pds, wipe data etc. works perfectly! makes life easier really! Phone booted right up after running no problems! Thanks!
Click to expand...
Click to collapse
Thanks for your reply, it assures me that the file isn't screwed up!

What happens if i run this on a non-US retail-EU Atrix?

Nevermind.
Sent from my MB860 using XDA App

hkkla said:
What happens if i run this on a non-US retail-EU Atrix?
Click to expand...
Click to collapse
Anyone has a clue? Is this a complete restore to out of the box-state?

sorry if this is a noob question. but dose this revert ext 4 format back to stock? haven't been keeping up lately and this ext 4 ext 3 stuff is new to me.

It restores it back to stock AT&T. EVERYTHING will be restored to stock.

hkkla said:
What happens if i run this on a non-US retail-EU Atrix?
Click to expand...
Click to collapse
It restores it back to stock AT&T. I tried this on an international Atrix.

Pardon my ignorance, i'm trying to restore a bricked Atrix 4G for a friend. It gave error Failed to boot SVF 105:1:2 0x1000 after bad upgrade. Is it possible to use this as a solution? How can i find that out? and in any case, i have downloaded all files, what's the correct procedure to do this?
Thanks in advance.

Anyone?
Sent from my X10i using XDA App

Barzobius said:
Anyone?
Sent from my X10i using XDA App
Click to expand...
Click to collapse
If its already bricked it can't get much worse using this script. Try it.
Sent from my MB860 using Tapatalk

Phalanx7621 said:
If its already bricked it can't get much worse using this script. Try it.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
Well, been trying but haven't been able to do anything with it. I mean I never used it before and seems like it needs to boot into fastboot mode which I haven't been able to do.
Is in any way possible to make the phone boot into that via usb cable with this software? I installed all requiered software including drivers but it never detected the phone in that (bricked) state, not even once. The phone turns a green light when u connect the usb without battery in, thats it.
I haven't found any solution yet, only seen ppl saying to buy a new one. Is this brick really that bad that there's absolutely no solution? And it all seems to be caused by lack of SBK as ive read on the net...
Well if there's any good news I would like to hear them
Sent from my X10i using XDA App

It's a hard brick. I'm sorry, but it cannot be fixed. You can always try a factory cable, but so far, nothing can be done. I feel your pain

[Q] Captivate - DEAD?

I tried flashing Android 2.3 using Odin (downloaded the official ROM from XDA's Wiki) and although Odin said that the flash was successful, the phone itself doesn't work. When I tried turning the phone on, NOTHING. Tried plugging it into my laptop, NOTHING. Charging? You guessed it. NOTHING.
Long story short, the Captivate won't boot. The screen's all black. The phone won't get into download mode. And even Windows 7 doesn't recognize the phone anymore. HELP???

I think a jig might be what you need.

ssengine1885 said:
I think a jig might be what you need.
Click to expand...
Click to collapse
I can see by your post count, that you are new, well if the phone has no signs of life it is most likley hard bricked, like his,,, then he can try http://forum.xda-developers.com/showthread.php?t=1257434 this only works on linux!!! if that says so then look into the Unbrickable Mod as your phone might brick, but is totally recoverable with the Mod.

^What he said. If it is Hard bricked you have 2 options Unbrickable Mod or Jtag.

LesPaulII said:
I tried flashing Android 2.3 using Odin (downloaded the official ROM from XDA's Wiki) and although Odin said that the flash was successful, the phone itself doesn't work. When I tried turning the phone on, NOTHING. Tried plugging it into my laptop, NOTHING. Charging? You guessed it. NOTHING.
Long story short, the Captivate won't boot. The screen's all black. The phone won't get into download mode. And even Windows 7 doesn't recognize the phone anymore. HELP???
Click to expand...
Click to collapse
It sounds like what happened to me. I bricked my captivate within an hour of owning it. Then I developed UnBrickable Mod.
Do this.
1. Report this in the thread you downloaded this Odin flash. The Odin flash was made improperly. Or link it here and I will get it removed.
2. Use UnBrickable Mod to resurrect your device. This takes a steady hand for the hardware mod.

here is the crappiest news, i updated that wiki last night at 8 pm my time, 4 hours after you posted your issue. the old link, *i think* linked to a version with md5 checksum fail i believe, i was not sure so i changed it to a KNOWN working file link.
but if you had come accross my stock rom thread you would have been golden... the wikis arent that popular or often updated.
both files were not "created" they were the files used by keis to upgrade. but the first one someone uploaded to xda was corrupt, though i flashed the corrupt version by removing the md5 extention, and did not brick...

Thanks for the help, guys. Will install Ubuntu and see what the Captivate is doing.
Just to let you know, according to Windows 7, my phone's showing up as SEC S5PC110 Test B/D and no drivers are found.

LesPaulII said:
Thanks for the help, guys. Will install Ubuntu and see what the Captivate is doing.
Just to let you know, according to Windows 7, my phone's showing up as SEC S5PC110 Test B/D and no drivers are found.
Click to expand...
Click to collapse
You have the unbrickable mod then, who did yours
Sent from my I897 using xda premium

You have the Unbrickable Mod?

b-eock said:
You have the unbrickable mod then, who did yours
Sent from my I897 using xda premium
Click to expand...
Click to collapse
Strange. I don't have the unbrickable mod.
The phone I have is a refurbished Captivate (replacement for my old one which broke due to something going wrong with my headphone jack. Rogers replaced my stock Captivate with a refurb).

LesPaulII said:
Strange. I don't have the unbrickable mod.
The phone I have is a refurbished Captivate (replacement for my old one which broke due to something going wrong with my headphone jack. Rogers replaced my stock Captivate with a refurb).
Click to expand...
Click to collapse
Then you got lucky try using Linux mode detect in the development section to test it! You might have a free UBMod phone!
Sent from my I897 using xda premium

b-eock said:
I can see by your post count, that you are new, well if the phone has no signs of life it is most likley hard bricked, like his,,, then he can try http://forum.xda-developers.com/showthread.php?t=1257434 this only works on linux!!! if that says so then look into the Unbrickable Mod as your phone might brick, but is totally recoverable with the Mod.
Click to expand...
Click to collapse
Would a VirtualBox VM with Ubuntu 11.04 work for this?

b-eock said:
Then you got lucky try using Linux mode detect in the development section to test it! You might have a free UBMod phone!
Sent from my I897 using xda premium
Click to expand...
Click to collapse
Right now I'm installing Ubuntu 11.04 on a VM (VirtualBox). Gonna test it out. Thnx.
And I must've "accidentally" modified it after the few months worth of abuse.

LesPaulII said:
Right now I'm installing Ubuntu 11.04 on a VM (VirtualBox). Gonna test it out. Thnx.
And I must've "accidentally" modified it after the few months worth of abuse.
Click to expand...
Click to collapse
Idk how you got lucky like this
Sent from my I897 using xda premium

Here's the screenshot from Windows 7.
This is what the phone is seen as from my laptop.

LesPaulII said:
Here's the screenshot from Windows 7.
This is what the phone is seen as from my laptop.
Click to expand...
Click to collapse
That is what comes up when a phone is UBModed!
Sent from my I897 using xda premium

b-eock said:
That is what comes up when a phone is UBModed!
Sent from my I897 using xda premium
Click to expand...
Click to collapse
Well, I never knew that before. I was planning to UBMod this thing until I found out from you guys that it was probably already UBModed.

b-eock said:
I can see by your post count, that you are new, well if the phone has no signs of life it is most likley hard bricked, like his,,, then he can try http://forum.xda-developers.com/showthread.php?t=1257434 this only works on linux!!! if that says so then look into the Unbrickable Mod as your phone might brick, but is totally recoverable with the Mod.
Click to expand...
Click to collapse
I tried to download it, but Ubuntu won't let me run it. Apparently, according to Ubuntu, the file isn't executable.

LesPaulII said:
I tried to download it, but Ubuntu won't let me run it. Apparently, according to Ubuntu, the file isn't executable.
Click to expand...
Click to collapse
Right click the file go to permissions tab then click allow as executable file and close then right click again and run with Java
Sent from my I897 using xda premium

b-eock said:
Right click the file go to permissions tab then click allow as executable file and close then right click again and run with Java
Sent from my I897 using xda premium
Click to expand...
Click to collapse
Thanks. That helped.
Here is the screenshot:

Attempted to install new InsertCoin [Fail]

It gets to the end but shows install error 7 at the end, booted anyways, now just bootloops to eternity. No recovery is accessible only fastboot now.
Tried to install 3 recoveries through fastboot all passed but none bootup, factory resetted through fastboot, no go still. Not in anyway meant to steer people away from the ROM, others are reporting it is working fine for them. I can't and a few others it seems. Phones aren't done for, just temp out for the count.
Will clean up the thread and make things prettier but need to get to work, hopefully this gets some attention. Thanks for any help guys, I won't be able to trouble shoot for about 10 hours or more depending on work things.

Were you able to restore your backup, or perhaps adb push a new rom ?
If not, what is your fastboot getvar all output?

SaHiLzZ said:
Were you able to restore your backup, or perhaps adb push a new rom ?
If not, what is your fastboot getvar all output?
Click to expand...
Click to collapse
I can't access recovery. Others have posted they can get into recovery and revert back. I cannot get it to boot and stay in recovery for more then a second. I installed the latest cwm recovery before flashing all was fine. Any link to sideloading. Will try when I get home tonight, on a backup phone right now at work.
Sent from my LG-P999 using xda app-developers app

Also appears it is happening in the other 4.4 gpe rom. Reboots and such.
Sent from my LG-P999 using xda app-developers app

Time to RUU back!

SaHiLzZ said:
Time to RUU back!
Click to expand...
Click to collapse
That's what I figured, will have more fun tonight I guess and report back, thanks bud.
Sent from my LG-P999 using xda app-developers app

mt3g said:
That's what I figured, will have more fun tonight I guess and report back, thanks bud.
Sent from my LG-P999 using xda app-developers app
Click to expand...
Click to collapse
So I tried it.
Got a boot loop to where i keep rebooting at the set up menu. -.-
I can't push via ADB for some reason, it says my HTC isnt found when the last time I tried, i removed all data, then adb pushed but that was dangerous .

sasaphrazz said:
So I tried it.
Got a boot loop to where i keep rebooting at the set up menu. -.-
I can't push via ADB for some reason, it says my HTC isnt found when the last time I tried, i removed all data, then adb pushed but that was dangerous .
Click to expand...
Click to collapse
So you side loaded and got it working now? Good news. Weird why its happening to some and not all. Dis you uncheck volume to wake option as well by chance? I'm just going to run the ruu when I get home later. Just need to read on how its done lol.
Sent from my LG-P999 using xda app-developers app

and im also on twrp 2633

To anyone that reads, me being stuck in an endless bootloop will a fastboot erase cache fix my issue? I've read that numerous times... thanks.
Sent from my LG-P999 using xda app-developers app

mt3g said:
So you side loaded and got it working now? Good news. Weird why its happening to some and not all. Dis you uncheck volume to wake option as well by chance? I'm just going to run the ruu when I get home later. Just need to read on how its done lol.
Sent from my LG-P999 using xda app-developers app
Click to expand...
Click to collapse
I side loaded ARHD 31.0 HD fine.
what im probably gonna do is try sideloading it again, then S-OFFing my HTC. Idk why It wont let me s-off for some reason -.-
Tried without the volume thingy, still doesnt work btw.

Ok, cool. Did you check your download for md5 match. I didn't as the download size was correct, lazy and dumb move.
Sent from my LG-P999 using xda app-developers app

Okay now I need MAJOR help.
I deleted EVERYTHING off the sd.
I tried ADB sideloading and its not finding my device. I tried multiple drivers and still nothing. Im on Win 8.1

You should try it on windows 7

Ya I haven't read anything good about windows 8 and android. There is a thread around somewhere tho.
Sent from my LG-P999 using xda app-developers app

http://forum.xda-developers.com/showthread.php?t=2543300 pass this around please

sasaphrazz said:
http://forum.xda-developers.com/showthread.php?t=2543300 pass this around please
Click to expand...
Click to collapse
How about you try a different computer not on win8??
Sent from my LG-P999 using xda app-developers app

just bricked mine too
This rom just bricked my htc one one too. i can't get to recovery no more... now im stuck on the fast boot and dont even know what to do next...can anyone help here plz...
mt3g said:
It gets to the end but shows install error 7 at the end, booted anyways, now just bootloops to eternity. No recovery is accessible only fastboot now.
Tried to install 3 recoveries through fastboot all passed but none bootup, factory resetted through fastboot, no go still. Not in anyway meant to steer people away from the ROM, others are reporting it is working fine for them. I can't and a few others it seems. Phones aren't done for, just temp out for the count.
Will clean up the thread and make things prettier but need to get to work, hopefully this gets some attention. Thanks for any help guys, I won't be able to trouble shoot for about 10 hours or more depending on work things.
Click to expand...
Click to collapse
---------- Post added at 08:35 AM ---------- Previous post was at 08:28 AM ----------
how to troubleshoot htc one from the fast boot btw...?
arso120120 said:
This rom just bricked my htc one one too. i can't get to recovery no more... now im stuck on the fast boot and dont even know what to do next...can anyone help here plz...
Click to expand...
Click to collapse

I just ran the ruu for my device, did it last night and all is good. What carrier and software do you have?
Sent from my HTC One using XDA Premium 4 mobile app

Good to know OP! Lucky you had a RUU to go back to!

[Q] Sprint Flex stuck on Fastboot.

HI ALL,
I have successfully rooted my HTC and Samsung devices before but I am very new to LG phones.
I did root with ioroot22 (worked perfectly).
Then I attempted to install CWM with flashify app.
But in the process I flashed CWM incorrectly (I think)
When I boot phone I am just stuck in fastboot black screen.
Am I screwed? Seems like Sprint TOT or KDZ files are not available yet.
Anyone know what I can do to get phone working again. Any help is very much appreciated
Please note I can get into CWM when I press - & power but can't really do anything beyond that.

re:
Bump
Any solution from anyone?

panduhcub said:
Bump
Any solution from anyone?
Click to expand...
Click to collapse
Have you try factory rest? Power and volume down.
Sent from my LG-D959 using Tapatalk

re
copualt3 said:
Have you try factory rest? Power and volume down.
Sent from my LG-D959 using Tapatalk
Click to expand...
Click to collapse
That just brings me into CWM.

So you are actually able to get into recovery and use it? What happens when you try to make a back up? Does it let you? I know these questions don't help you. I could probably upload the factory recovery and we can try to put it back on in fastboot mode
Sent from my LG-LS995 using XDA Premium 4 mobile app

Seems you should be able to get your kdz file from LG.
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=xxxxxxxxxxxxxxx
Repace xxx with your 15 digit imei.
resultant page has a url about half way down. Use that and it downloads your firmware from LG.
Haven't tried but you could maybe use this installer to reflash:
http://forum.xda-developers.com/showthread.php?t=2134192
Best of luck
there is a thread for return to stock with full instructions and links for files & tools courtesy of hyelton:
http://forum.xda-developers.com/showthread.php?p=50308273

Re: Phone is back. Up and Running!!!!. Thanks wolfgart
justinswidebody said:
So you are actually able to get into recovery and use it? What happens when you try to make a back up? Does it let you? I know these questions don't help you. I could probably upload the factory recovery and we can try to put it back on in fastboot mode
Sent from my LG-LS995 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yea that didnt work, i think i damaged my my OS.
To the other poster, mrphil101, putting my IMEI didnt work on that website. Dont think LG has publicly released the kdz file yet.
Regardless, i was able to bring life back into my phone with the help of a member name, wolfgart. He was able to somehow provide me both the .tot & .dll for my sprint variant.
If you guys need any help on LG phones, he is the man.

How were you able to get in touch with him? I think he is banned from trying to sale the tot files. I would gladly buy the tot file so that we could all have it
Sent from my LG-LS995 using XDA Premium 4 mobile app

panduhcub said:
Yea that didnt work, i think i damaged my my OS.
To the other poster, mrphil101, putting my IMEI didnt work on that website. Dont think LG has publicly released the kdz file yet.
Regardless, i was able to bring life back into my phone with the help of a member name, wolfgart. He was able to somehow provide me both the .tot & .dll for my sprint variant.
If you guys need any help on LG phones, he is the man.
Click to expand...
Click to collapse
to bad...T-mo just released their phones too. Must be a sprint things. ISP's sure can hose things up with their firmwares, all that bloatware crap and untimely updates. I have been on nexus's for a long time; firmware and bootloader locks, I had forgotten how much of a pain they make it. But that said, this is the most satisfied I have been with a stock phone.

justinswidebody said:
How were you able to get in touch with him? I think he is banned from trying to sale the tot files. I would gladly buy the tot file so that we could all have it
Sent from my LG-LS995 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
PM sent

lets solve this out!
panduhcub said:
PM sent
Click to expand...
Click to collapse
I have this same exact issue but with the att g flex. right after rooting my device i also tried the recovery and this black screen came on. i freaked out but after a few times it finally booted up. then i stopped messing with custom recovery. but the other day a software update came on my screen and it did not let me pick whether or not to update it just did it on its own. and said software rebooting. after that is was stuck on the same screen again.
[460] Fastboot mode started
[460] udc_start()
[570]--portchange--
[570]--reset--
[730]--portchange--
[950] fastboot: proccessing commands

if you are rooted you should never take an OTA update..

wase4711 said:
if you are rooted you should never take an OTA update..
Click to expand...
Click to collapse
Mine updated without asking me I pulled my phone out of my pocket and the screen said your phone successfully updated I thoughts oh **** but all was fine still rooted and I'm running the 10l update. I'm on att though.
Sent from my LG-D950 using xda app-developers app

you are definitely lucky; have you rebooted the phone a few times to make sure everything still works normally?

Hello all
Inviato dal mio LG-D802 utilizzando Tapatalk

stuck on fastboot
Pleas help. I am stuck on same fastboot screen. Holding power plus volume down doesn't work. Computer doesn't recognize it when connected. What can I do? Thanks. Oh and it's tmobile.

legnaz said:
Pleas help. I am stuck on same fastboot screen. Holding power plus volume down doesn't work. Computer doesn't recognize it when connected. What can I do? Thanks. Oh and it's tmobile.
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Sounds dumb but I'll ask anyway have you tried holding power down and volume UP?
Sent from my LG-D950 using XDA Premium 4 mobile app

brittoking said:
Sounds dumb but I'll ask anyway have you tried holding power down and volume UP?
Sent from my LG-D950 using XDA Premium 4 mobile app
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Yep.

legnaz said:
Yep.
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this question might even sound dumber? but how do you enter fastboot mode on the lg g flex?

recovery help. sprint variant
I tried to flash twrp for my sprint variant g-flex. it will not boot into recovery so therefore i do not have a recovery i need the offical tot and .dll files so that i can reroot and start from scratch if anybody is willing to help.