How to use fastboot? - LG Optimus Black

Hi!Can anyone tell me how use fastboot on our OB?And is it possible to use it on OB?

suleymanovemil8 said:
Hi!Can anyone tell me how use fastboot on our OB?And is it possible to use it on OB?
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It needs to be included in bootloader. I think LG switched fastboot with their own alternative.
I know I've seen pictures and post about people stuck in fastboot mode with very old (V10*) firmware.

You could put this is the build.prop
debug.sf.nobootanimation=1
it would disable the LG icon and make it load a bit faster

DeegRollerz said:
You could put this is the build.prop
debug.sf.nobootanimation=1
it would disable the LG icon and make it load a bit faster
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Lol I hope you were trolling in the deep Otherwise try to google fastboot

Related

is posible to reinstall fastboot?

Just easy guestion. Is posible to reflash fastboot on g1? If yes, could anybody tell to me how and how much is it dangerous?
sambick said:
Just easy guestion. Is posible to reflash fastboot on g1? If yes, could anybody tell to me how and how much is it dangerous?
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Well seeing as fastboot is an Android utility for your computer, I'm thinking no it cannot reflashed on to your phone

Kernel changing.

A search found me nothing sooo... Can i just push a new kernel? From an already custom kernel. Right now i have intersectravens and my battery life is horrible. I wanna flash to a better kernel but not sure which. Help?
-Thanks
Yes, make sure you replace the proper wifi driver that matches the new kernal so you don't break wifi.
http://forum.xda-developers.com/showthread.php?t=633238
I use this kernel. Do a nandroid first just to be safe and flash the kernel of your choice.
I was thinking about this one 800 OC
http://forum.xda-developers.com/showthread.php?t=654416
Could i just simply do the install steps?
Yes.
Pushing of the bcm4329.ko is necessary as WiFi support would be broken otherwise. If you don't do it, WiFi will not work.
can someone tell me how to change a kernel to a different one? Some require to load up fastboot and type commands. I dont know how to do that. the one I have I just flashed in recovery
Buck Shot said:
can someone tell me how to change a kernel to a different one? Some require to load up fastboot and type commands. I dont know how to do that. the one I have I just flashed in recovery
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Yup - read the first post in a thread on a kernel you'd like to flash. Easy!
Buck Shot said:
can someone tell me how to change a kernel to a different one? Some require to load up fastboot and type commands. I dont know how to do that. the one I have I just flashed in recovery
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How did you unlock your phone without fastboot?

[ROM]IO fastboot for retail unlocked bootloader

i got the fastboot working on retail unlocked bootloader version of GalaxyTab 10.1
the issue i found.
on fastboot mode. it can't show bootloader version. it show Unknown. beside that. everything works.
backup.bat is for backup your stock bootloader
ioboot.bat will replace your stock to io version bootloader
stock.bat will restore your stock bootloader
before run all those script. you have to put your GalaxyTab 10.1 to apx mode first.
http://www.megaupload.com/?d=LLCQAGIG
This only work with IO version or retail version will work too?
this one is for retail version which got unlocked bootloader
roar109 said:
This only work with IO version or retail version will work too?
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Io version already has fastboot enabled .. so no need. Its for retail
dsh897 said:
Io version already has fastboot enabled .. so no need. Its for retail
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Ok, thanks but i have retail with locked bootloader, so i pass
Could someone explain to be what fastboot is? In my mind it it is just booting up the tab faster but how?
to the mod: Please delete
joedoe said:
to the mod: Please delete
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So i am guessing this thread is a load of BS then maybe. Not cing too many people hop on this and that last post i may have misunderstood whether it be for that individual post or the complete thread. Also i don't quite get what fastboot is going to allow for us to do i ain't no dev though.
Fastboot ?)
edgarpo said:
Could someone explain to be what fastboot is? In my mind it it is just booting up the tab faster but how?
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http://wiki.cyanogenmod.com/wiki/
Does this mean the unlocked retail tab can have access to the fastboot and recovery console using the power + vol down combo just like io ?
Sent from my GT-P7510 using XDA Premium App
yes. you will have option for fastboot or recovery. i got fastboot, recovery, odin and apx on my 10.1 now
I guess my question is what's the difference between the fastboot option here and the regualr CWM recovery that was provided in earlier threads?
mashi said:
yes. you will have option for fastboot or recovery. i got fastboot, recovery, odin and apx on my 10.1 now
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thats awesome, thanks mashi!!
this is on your bootloader. basically more perm.
msm903 said:
I guess my question is what's the difference between the fastboot option here and the regualr CWM recovery that was provided in earlier threads?
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give me a reason and i will delete this post.
joedoe said:
to the mod: Please delete
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Why on earth would you want a mod to deleate tthis? Mashi has done a wonderful job and contributed to the community. You should say thx.
Side note: maybe he just ment his post I didn't look but he might have edited his post to say deleate
joedoe said:
to the mod: Please delete
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and who are u to request that ?
anilkuj said:
and who are u to request that ?
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He just wanted his own post deleted because he posted something stupid or in the wrong thread. It happens all the time.
EDIT### I am careless. I read the apx mode thing when this thread first came up and then forgot about it when i went to actually flash this.
concept0 said:
He just wanted his own post deleted because he posted something stupid or in the wrong thread. It happens all the time.
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Finally the one person who understood it properly. Thanks.

Help me unbrick my LG P880

How it got bricked:
I managed to install root, but then I tried to flash the custom recovery, when I restarted the phone, It got stuck at boot logo.
I can still get into the stock recovery, I can use adb shell and see the filesystem. I was using 4.1.2, I think I might need to flash again the stock rom, but I don't know how. Can anyone help please?
http://forum.xda-developers.com/showthread.php?t=2069723
Dadovvv said:
http://forum.xda-developers.com/showthread.php?t=2069723
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How do I know which KDZ file to flash? Or any of the latest should suffice?
Soy_Filipo said:
How do I know which KDZ file to flash? Or any of the latest should suffice?
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http://www.smartphenom.com/2013/01/lg-firmware-update-central-beta.html
Dadovvv said:
http://www.smartphenom.com/2013/01/lg-firmware-update-central-beta.html
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I'm sorry if I'm asking something terribly obvious, but I've bought my phone in amazon and neither my country or carrier are listed there, so, I don't know what to flash, will it break my phone if I flash something wrong? I would like to flash something from spain so I can use my native language
Soy_Filipo said:
I'm sorry if I'm asking something terribly obvious, but I've bought my phone in amazon and neither my country or carrier are listed there, so, I don't know what to flash, will it break my phone if I flash something wrong? I would like to flash something from spain so I can use my native language
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U can flash each version of kdz file you want.
I can only get into de SW Upgrade mode when I plug the phone with the battery on it, Is it really important to do it with the battery off?
Soy_Filipo said:
I can only get into de SW Upgrade mode when I plug the phone with the battery on it, Is it really important to do it with the battery off?
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you can do it with battery on no problem

Any ToT file for disabling big cores?

Hello everyone.
Unfortunately my lg g4 bootlooped. And after extensive Google search, i see that most models have a tot file which disables big cores so u can run the phone on the small cores
Does the T-Mobile variant have such a tot file? if yes then can somebody give me the link? if no then can somebody create one using the following info?
Agimax said:
Why not just edit the files below for the two large cores (if you have root):
/sys/devices/system/cpu/cpu4/online (open file and change from a one to a zero)
/sys/devices/system/cpu/cpu5/online (open file and change from a one to a zero)
You could also just have the startup file do it (can modify the ripped system partition & put back on phone):
etc/dir/init.qcom.post_boot.sh (find your processor code - 8992 and add echo lines there with the rest of the cpu commands)
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Please I'd be highly thankful if someone can help
XeniX_Force said:
Hello everyone.
Unfortunately my lg g4 bootlooped. And after extensive Google search, i see that most models have a tot file which disables big cores so u can run the phone on the small cores
Does the T-Mobile variant have such a tot file? if yes then can somebody give me the link? if no then can somebody create one using the following info?
Please I'd be highly thankful if someone can help
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no such thing for any american variant
raptorddd said:
no such thing for any american variant
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Cant someone with a working G4 crate one? i quoted a person who has given the way how to...
XeniX_Force said:
Cant someone with a working G4 crate one? i quoted a person who has given the way how to...
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not sure . i cant...
sort of read this quickly does this help.? https://www.xda-developers.com/nexus-6p-bootloop-fix/
raptorddd said:
not sure . i cant...
sort of read this quickly does this help.? https://www.xda-developers.com/nexus-6p-bootloop-fix/
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Well he also created modified boot images which disable the big cores. Can't someone create that for our device?
maybe @steadfasterX can
XeniX_Force said:
Well he also created modified boot images which disable the big cores. Can't someone create that for our device?
maybe @steadfasterX can
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TWRP installed?
Then u could just modify the init file but I believe its too late. once bootlooping the run is over afaik.
.
steadfasterX said:
TWRP installed?
Then u could just modify the init file but I believe its too late. once bootlooping the run is over afaik.
.
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yeah I'm bootlooped
Someone also fixed the Nexus 6 bootloop by creating modified images which disable the big cores.
Can't we(mostly you, you're the big dev) create a similar modified image that we can flash through LGUP?
XeniX_Force said:
yeah I'm bootlooped
Someone also fixed the Nexus 6 bootloop by creating modified images which disable the big cores.
Can't we(mostly you, you're the big dev) create a similar modified image that we can flash through LGUP?
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you may have overseen it but I asked: TWRP installed?
and new question: bootloader unlocked?
I can't create TOT files
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steadfasterX said:
you may have overseen it but I asked: TWRP installed?
and new question: bootloader unlocked?
I can't create TOT files
.
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I'm bootlooped. can't reach anything except download mode
and yeah bootloader was unlocked.
oh you can't create tot files? aren't they just system images?
XeniX_Force said:
I'm bootlooped. can't reach anything except download mode
and yeah bootloader was unlocked.
oh you can't create tot files? aren't they just system images?
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Afaik you need a box to create tot files.
Besides this I have never created any big core disabling but I know @the_naxhoo has.
if you can reach the download mode you could flash with the lglaf shell a modified boot image which is doing the job. If you do not have Linux get your copy of FWUL which has everything on board (like the lglaf shell).
The modded boot image has to disable the cores either by the cmdline or the sys echo or both. I saw that cmdline thing during my unlock attempts and think those are much better then the echo to sys..
Creating a kdz would be maybe possible
creating a TWRP zip for sure but I'm very very busy at the moment...
So just one more time (as still not answered.. ) do you had TWRP installed before the bootloop occurs?
...and If so what happens when you try to get into it?
.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Afaik you need a box to create tot files.
Besides this I have never created any big core disabling but I know @the_naxhoo has.
if you can reach the download mode you could flash with the lglaf shell a modified boot image which is doing the job. If you do not have Linux get your copy of FWUL which has everything on board (like the lglaf shell).
The modded boot image has to disable the cores either by the cmdline or the sys echo or both. I saw that cmdline thing during my unlock attempts and think those are much better then the echo to sys..
Creating a kdz would be maybe possible
creating a TWRP zip for sure but I'm very very busy at the moment...
So just one more time (as still not answered.. ) do you had TWRP installed before the bootloop occurs?
...and If so what happens when you try to get into it?
.
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i had twrp but now when i try to access twrp i get to wipe everything screen which then hangs when I choose yes
yeah I can get FWUL but i need steps to know what to do....
I even asked @XCnathan32 who just fixed the Nexus 6p bootloop to have a look into our device maybe he can benefit from this information u just posted.
XeniX_Force said:
i had twrp but now when i try to access twrp i get to wipe everything screen which then hangs when I choose yes
yeah I can get FWUL but i need steps to know what to do....
I even asked @XCnathan32 who just fixed the Nexus 6p bootloop to have a look into our device maybe he can benefit from this information u just posted.
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Cmdline is how I disabled the cores on the Nexus, the fix is easy to do on a boot.img, but LG uses the KDZ files, which use a totally different file structure, and I'm not sure if the LG flash tool has file checks, even on unlocked bootloaders. I will do some research and see what I can do. If anyone has any knowledge on modifying kdz files, please tell me.
XCnathan32 said:
Cmdline is how I disabled the cores on the Nexus, the fix is easy to do on a boot.img, but LG uses the KDZ files, which use a totally different file structure, and I'm not sure if the LG flash tool has file checks, even on unlocked bootloaders. I will do some research and see what I can do. If anyone has any knowledge on modifying kdz files, please tell me.
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asked steadfasterx about kdz and his reply is as follows
steadfasterX said:
me too. never created KDZs yet but there are tools for it - afaik.
My first approach would have been to flash the boot image in the download mode with the lglaf shell (https://github.com/steadfasterX/lglaf/tree/g4) .
requires to do a flash of a modified boot image with dd on /dev/block/mmcblk0 with the correct seek ..
.
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XCnathan32 said:
Cmdline is how I disabled the cores on the Nexus, the fix is easy to do on a boot.img, but LG uses the KDZ files, which use a totally different file structure, and I'm not sure if the LG flash tool has file checks, even on unlocked bootloaders. I will do some research and see what I can do. If anyone has any knowledge on modifying kdz files, please tell me.
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you may take a look on this: https://forum.xda-developers.com/showthread.php?t=2179431
not sure if that works though.. (quite old)
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steadfasterX said:
you may take a look on this: https://forum.xda-developers.com/showthread.php?t=2179431
not sure if that works though..
.
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But cant we just create a modified boot img and twrp img and flash through lglaf. then flash a rom zip though twrp?
XeniX_Force said:
But cant we just create a modified boot img and twrp img and flash through lglaf. then flash a rom zip though twrp?
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sure thats what I said before
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steadfasterX said:
sure thats what I said before
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can u provide a stock boot img for Nathan to edit?
XeniX_Force said:
can u provide a stock boot img for Nathan to edit?
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sure what was your installed ROM and version? best would be a link to it as well..
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steadfasterX said:
sure what was your installed ROM and version? best would be a link to it as well..
.
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stock. i was using lineage but I returned to stock and got bootloop after some days.
XeniX_Force said:
stock. i was using lineage but I returned to stock and got bootloop after some days.
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tell me the exact version. v10h, v10n, v20g, v20o .. there are dozens of versions out there..
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