[Q] How to get in Bootloader mode - LG Optimus Black

I want my optimus black to go in fastboot mode.
I have tried Quick Boot and AnRebot from Google Play, but the apps just reboot the phone normally, when I press bootloader
Any suggestions how I can boot my phone in fastboot mode
EDIt: you can't get in fastboot mode.

AW: [Q] How to get Bootloader access
TJ1401 said:
I want my optimus black to go in fastboot mode.
I have tried Quick Boot and AnRebot from Google Play, but the apps just reboot the phone normally, when I press bootloader
Any suggestions how I can boot my phone in fastboot
Click to expand...
Click to collapse
There is no way yet... seems like lg removed that feature. What do you need it for?
Sent from my LG-P970 using xda app-developers app

Sv: [Q] How to get in Bootloader mode
N00BY0815 said:
There is no way yet... seems like lg removed that feature. What do you need it for?
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the fast answer. Nothing I can't do with other methods, I just prefer fastboot
Sent from my LG-E975 using xda app-developers app

Related

My nexus one won't boot

I have a rooted nexus one running cm7.2 and it won't boot to boot loader or recovery or rom o
Sent from my SGH-T959 using xda app-developers app
Or fast boot so I can't do anything am I bricked
Sent from my SGH-T959 using xda app-developers app
Try to use passimg.zip method. Google it download that zip put it in or main SD. Hold trackball + power button. Good luck
Sent from my Nexus One using Tapatalk 2
I can't get to fadtboot or boot loader so I cantbdo passimage
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n1noob13 said:
I can't get to fadtboot or boot loader so I cantbdo passimage
Sent from my SGH-T959 using xda app-developers app
Click to expand...
Click to collapse
Do you have ADB and fastboot software installed in your PC? Either have that or download Android SDK. You can boot your phone via ADB command lines.
Yes I have it but nothing will work the charging lightbwont lightvwont light up orbanything
Sent from my SGH-T959 using xda app-developers app
Your phone needs a JTAG repair.
Sent from my Nexus One using xda app-developers app
humzaahmed155 said:
Your phone needs a JTAG repair.
Sent from my Nexus One using xda app-developers app
Click to expand...
Click to collapse
what is mean?
Search.
hi
humzaahmed155 said:
Your phone needs a JTAG repair.
Sent from my Nexus One using xda app-developers app
Click to expand...
Click to collapse
Hi. my N1 is totally dead(i think) wont boot still showing X logo and lock. I tried everything. When using Nexus 7 toolkit, toolkit say device found (showing serial number). But when i try flash using adb command everytime i get message device not found. What is problem, what is wrong?
Thanks
bagi576 said:
Hi. my N1 is totally dead(i think) wont boot still showing X logo and lock. I tried everything. When using Nexus 7 toolkit, toolkit say device found (showing serial number). But when i try flash using adb command everytime i get message device not found. What is problem, what is wrong?
Thanks
Click to expand...
Click to collapse
Can you reach the boot menu by pressing the volume down key while powering on?
Otherwise, try to check if fastboot is able to see your device and flash some new boot and system image
You have a Nexus One, not sure why you're using the Nexus 7 Toolkit..
hi
tommert38 said:
You have a Nexus One, not sure why you're using the Nexus 7 Toolkit..
Click to expand...
Click to collapse
Hi, only Nexus 7 Toolkit shows device is connected. adb mode not responding. i've just tried N7 Toolkit
---------- Post added at 10:54 PM ---------- Previous post was at 10:45 PM ----------
efxbug said:
Can you reach the boot menu by pressing the volume down key while powering on?
Otherwise, try to check if fastboot is able to see your device and flash some new boot and system image
Click to expand...
Click to collapse
Thank you for asking. able to enter boot menu and fastboot menu. but cant flash anything, i'll tried new boot new system img's. Nothing. When connecting to PC fastboot showing Fastboot USB mode is enabled. unable to do nothing via adb mode. adb mode say error device not found.
Thanks for answer
Are drivers installed? And have you installed adb and fastboot correctly?
tommert38 said:
Are drivers installed? And have you installed adb and fastboot correctly?
Click to expand...
Click to collapse
Yes, installed correct. it show up in the Device Manager list.
Anyway, i go to try this driver. Thanks. Let me know u
hmm. unlucky. Still nothing. Windows take a signal when connecting phone shows on fastboot menu => fastboot usb and adb mode say error device not found:crying:
i scanned my drivers using driver genius v11, i saw android driver named Samsung_Android_4.0_usbdrivers. now i think its something wrong with my boot.img?
When you see fastboot usb, and you type fastboot devices in a terminal, what does it say? ADB only works in recovery or when your ROM is booted, so just focus on fastboot.
it say when N1 is fastboot usb mode "error device not found". thanks for advance. tomorrow i'll be ask more.
Sent from my YP-G70 using xda app-developers app
Hey guys. Finally my N1 detected in adb mode. Im used Nexus 7 toolkit, downloaded N1 official Rom (i used only boot.img from zip file)
1st ive installed toolkit, then flashed boot.img (from official rom) to /system/ folder. Finally Windows device manager say detected new device and downloading drivers.
Started cmd.exe typed adb shell => adb mode showed HT9**********. Now problem is wont boot. What i do now? :silly:
i hope u can enter fastboot usb mode. if so try flashing any recovery.img
Sent from my Nexus One using Tapatalk

Fastboot on re boot?

I was just playing with the Rom tool box app. I hit re boot recovery and a screen popped up that said Fastboot kindle fire and just stayed there until I held the power button and re booted the device. Has anyone seen this and can fastboot be used?
Sent from my KFTT using xda app-developers app
Are you sure this is the new kindle fire hd. Because I tried it and it said your kindle cannot boot and gave me the option to re boot or factory reset. And since it has a locked boot loader you can not use fast boot.
Its definitely KFHD. I'll try to do it again a take a pic. I guess my real question is can fast boot be used with a locked bootloader?
Sent from my KFTT using xda app-developers app
Here is a pic of what it looked like. And I'm sorry I hit reboot bootloader.
Sent from my SCH-I500 using xda app-developers app
Yes, the new KF's can be put into fastboot mode.
Yes, you can issue fastboot commands to it.
No, that does not mean you can flash it with a new recovery or ROM and have it boot.
Be careful what you do here. There are very few options left to you if you brick this device. If you don't know what you're doing and you don't think things through before playing around in fastboot, you may not like the results.
I didn't think so. And I definitely won't be playing around in fast boot. Thanks for the response though
Sent from my KFTT using xda app-developers app
Is there any way to flash update.zip with fastboot?
fastboot devices command doesn't recognise my KHD..
I want to FULL restore Kindle to factory condition, as I 've messed up keyboard and some othe things. Resetting to default doesn't help.
Yuretz said:
Is there any way to flash update.zip with fastboot?
fastboot devices command doesn't recognise my KHD..
I want to FULL restore Kindle to factory condition, as I 've messed up keyboard and some othe things. Resetting to default doesn't help.
Click to expand...
Click to collapse
try- fastboot -i 0x1949 getvar product
you have to use the -i 0x1949 with commands, if you use fastboot help it will give you a list of commands
check out this thread:
http://forum.xda-developers.com/showthread.php?t=1930656

Stuck installing Plasma Active on Nexus 7

So I've been trying to install Plasma Active on my Nexus 7. I followed the PA wiki and everything was going well. I got MOSLO installed, and then extracted the PA tarball and then rebooted. It didn't boot into PA, but the wiki mentioned that it might not. So it has a section describing some commands to run in fastboot to get it to boot PA at this point.
The problem is that after I installed MOSLO and extracted PA, I can no longer see the Nexus 7 with fastboot. When I run "fastboot devices" or "adb devices" nothing shows up.
Any one have any thoughts on what might be going on?
Thanks for your help!
Your N7 is in bootloader mode and all PC drivers are installed correct?
Sent from my Nexus 7 using xda app-developers app
BlackFire27 said:
Your N7 is in bootloader mode and all PC drivers are installed correct?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Correct. Fastboot worked fine when I unlocked the N7, and then when I installed moslo. But after installing PA, fastboot no longer sees the N7.
arbulus said:
Correct. Fastboot worked fine when I unlocked the N7, and then when I installed moslo. But after installing PA, fastboot no longer sees the N7.
Click to expand...
Click to collapse
What exactly is moslo? It may have interfered with the bootloader.
Sent from my SPH-M830 using xda app-developers app
BlackFire27 said:
What exactly is moslo? It may have interfered with the bootloader.
Sent from my SPH-M830 using xda app-developers app
Click to expand...
Click to collapse
The wiki isn't totally clear on what part MOSLO plays.
I would link you to the wiki that I followed, but the forum is preventing me from putting urls in my post.
Does it do ANYTHING? Hopefully it isn't in nvedit mod.
ADB is only good when you have the phone booted up and USB Debugging turned on.
Fastboot commands only work when the device is in bootloader mode.
If your phone is past bootloader mode, but getting stuck in a bootloop or something, then ADB will be unavailable too.
Try Turning the phone off completely, holding VOLUME DOWN + UP + POWER until it boots into the Bootloader. Then Connect it up to the PC and run your fastboot commands.
Can you get into any form of custom recovery? If so you have a few options that could help.
Sent from my SPH-M830 using xda app-developers app
player911 said:
Does it do ANYTHING? Hopefully it isn't in nvedit mod.
ADB is only good when you have the phone booted up and USB Debugging turned on.
Fastboot commands only work when the device is in bootloader mode.
If your phone is past bootloader mode, but getting stuck in a bootloop or something, then ADB will be unavailable too.
Try Turning the phone off completely, holding VOLUME DOWN + UP + POWER until it boots into the Bootloader. Then Connect it up to the PC and run your fastboot commands.
Click to expand...
Click to collapse
If I hold power and volume down, I can boot into the bootloader. same if I hold power and both volume keys. That's what gives me fastboot access (or would normally).
I can do that. And I can boot into the MOSLO. But I cannot get into Plasma Active. One of the last errors that I can see before MOSLO reboots is "no rootfs found. ignoring."
When I first started, I could hold power and volume down to get into the bootloader, and my computer could see it from fastboot. That is how I unlocked the bootloader and flashed the MOSLO. But once I installed Plasma Active, I couldn't see the device in fastboot anymore. And instead of booting into Plasma Active, it just shows the dead android on its back with the red triangle exclamation point.
Since the xda forum won't let me post links, if you google "install plasma active on nexus 7", the second option is the wiki for the project I'm following.
rtsati the
BlackFire27 said:
Can you get into any form of custom recovery? If so you have a few options that could help.
Sent from my SPH-M830 using xda app-developers app
Click to expand...
Click to collapse
No. If I'm in the bootloader and tell it to reboot into "recovery mode", it just shows me the dead android with the red triangle exclamation point. I imagine that is because android is no longer on the device. Which is what I want. I'm trying to put a new OS on here. Though I don't suppose that helps much.
arbulus said:
No. If I'm in the bootloader and tell it to reboot into "recovery mode", it just shows me the dead android with the red triangle exclamation point. I imagine that is because android is no longer on the device. Which is what I want. I'm trying to put a new OS on here. Though I don't suppose that helps much.
Click to expand...
Click to collapse
Android with red triangle and exclamation mark means you don't have a custom recovery installed.
No fastboot and no custom recovery...does MOSLO have any form of options?
Sent from my SPH-M830 using xda app-developers app
So does this replace android completely or does it dual boot?
Sent from my HTC One using xda premium
---------- Post added at 11:46 AM ---------- Previous post was at 11:29 AM ----------
Did a little research and there is a dual boot option, you just use the dual boot tool and flash a zip and you have plasma active as a ROM.
Sent from my HTC One using xda premium
spitfire2425 said:
So does this replace android completely or does it dual boot?
Sent from my HTC One using xda premium
---------- Post added at 11:46 AM ---------- Previous post was at 11:29 AM ----------
Did a little research and there is a dual boot option, you just use the dual boot tool and flash a zip and you have plasma active as a ROM.
Sent from my HTC One using xda premium
Click to expand...
Click to collapse
Yeah, there's the dual boot option. Though I chose to go with the single OS option. In that case, it does repalce Android completely.

[Q] Bootloader wont unlock.

Whenever I type adb reboot oem-unlock, the device just reboots and goes into charging mode.Help?
Change PC connection type
Sent from my LG-P880 using xda app-developers app
NoobBrandon said:
Whenever I type adb reboot oem-unlock, the device just reboots and goes into charging mode.Help?
Click to expand...
Click to collapse
Maybe search for another tutorial, reinstall your drivers or do the other things that are suggested if you search for your problem.
Sent from my LG-P880
It's one of the "unlockable" models. Use the "unlock-relock" tool or the unlock script from the unlock guide.
Sent from my LG-P880 using Tapatalk 4
muellersmattes said:
It's one of the "unlockable" models. Use the "unlock-relock" tool or the unlock script from the unlock guide.
Sent from my LG-P880 using Tapatalk 4
Click to expand...
Click to collapse
If this helps,whenever I boot into recovery now,a red text saying LGE SECURITY ERROR: BOOT IMAGE or something like that
So you flashed a recovery before unlocking?
If your device doesn't boot at all, do a kdz reflash. If you can boot to the system, use one of the methods mentioned above; you only need root and USB debugging on to use it. If you don't have root but can't boot to recovery, try the "root many android" method from the index, that might do it. If it still fails, do a kdz reflash, then start again (root - unlock - recovery)
Sent from my LG-P880 using Tapatalk 4

Help! Fastboot help please!

Sorry, not trying to spam but i wrote over my last thread. Anyway i need to get into fast boot on my kfhd 7 without a cable or fireflash. Is there an adb tool or fastboot tool, or adb command, ANYWHERE?
SPECS/CONDITION:
FireOS 7.5.1
Root? ROOTED
Custom Recovery? None
Additional details:
Soft bricked / stuck in boot loop, tried to change the launcher via actually pasting apex over the stock launcher in file explorer+root addon.
PC:
Windows 8
ADB? Yes
Fastboot drivers? YES
Determination? Yes
SDK? No, but available
please provide a download link, but if you vant its fine. Any help accepted
Sent from my Huawei-U8665 using XDA Free mobile app
I dont have SDK, but i can install it.
Sent from my Huawei-U8665 using XDA Free mobile app
Kindle Fire HD 7'' Red Screen
Hello, I came here to see if I can get some help with fixing my KFHD. The problem is, everytime I boot it, it shows a red screen and I have a fastboot cable so any assistance will be great.
hey mate. I have exactly the same problem. .did you solve it?
Sent from my GT-I9300 using XDA Premium HD app
Red screen I believe is a mismatched boot loader issue best I recall, I think using the fast boot cable and a restore utility is the quick fix.
Sent from my XT907 using XDA Free mobile app

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