[GUIDE] V20 Fastboot access in Windows.

[Vexamus]

So I'm seeing a ton of posts of folks not able to get fastboot to see their devices. I've done some tinkering around and found a set of drivers that work fine for both ADB and Fastboot. (Attached)

• Uninstall any ADB drivers you have on your system. Easiest way is to plug your phone in, go into device manager, right click your phone and select uninstall and check the box that says to remove the driver as well.
• Then download this package, extract, simply run install.exe as admin. Don't panic, it doesn't do anything visual.
• Now plug your phone in and see if adb works, you may need to authorize the computer again on the phone so make sure it's unlocked.
• Reboot into bootloader and check if fastboot sees the phone by using

  fastboot devices

• If not then go back into device manager and right click on your phone, select update driver, let me select one from a list and you should see "Fastboot interface (Google USB ID)". Select this one.
• Check fastboot without unplugging with the same command. Check and see if you can send commands to the phone by using for instance,

  fastboot getvar unlocked

  If the command fails, simply plug the phone into a different USB port and the same Google driver should install again and you should be able to send commands to the phone. Alternatively, you can reboot the phone by tapping the battery out and starting it all over again.
• Now she chooches.

Lemme know if you're still having problems.

 

[alfadog77]

bless up ??

 

[kirschdog1]

Does this work for sprint variant?

 

[Lmax579]

im having problems...damn it i don't get this

---------- Post added at 03:19 PM ---------- Previous post was at 02:42 PM ----------

any help please?

 

[Emilicious]

Verizon variant here,

I cannot seem to get this dang V20 in the right mode

(I've seen a bootloader or two in my day):highfive::laugh::silly:

I have used the adb command (several times)

adb reboot bootloader

to get it into bootloader mode, alas it is to no avail since all the command does is send the phone into "Restart" mode; nor can I get fastboot to recognize it when it is in, what I believe to be , the bootloader for said LG V20 of the

Verizon persuasion!​

Suggestions?

 

[ZDeuce2]

You need fastboot, not bootloader... To get it, turn off your phone, plug your LG cable into the computer, ( but not the phone yet) hold the volume down key for 5 seconds then plug it into your cable, do not release the button till your phone boots. It should boot into fastboot... Provided you have turned on USB debugging in developer settings (turn on oem unlock while you are in there too. (this is the way on the tmo V20 at least... If that doesn't work, I would use the dirty Santa guide

Sent from my LG-H918 using Tapatalk

 

[jdmsohc22]

Not sure how I finally got it working for my Verizon variant as I tried like four or five different ways, but someone should definitely make a video.. Perhaps I will since I think visuals are a good aid to go along with written instructions..

 

[rowihel2012]

Thanks bro works
Very easy
With my t mobile v20

 

[tripey]

My phone shows as connected in adb devices. I can also get it to reboot bootloader, but once im there.. I cant issue any commands such as fastboot oem device-id. It gives me the dreaded waitng for any device.

 

[axaman943]

can't manage to make this work for H990DS, i don't get the usual authorization window to the computer, only get the window to choose which USB mode (battery charge, file transfer, so on...) I'm trying to get adb to work to activate agressive Doze on Greenify app, any help?

 

[mariomendezsv]

Thanks

So I'm seeing a ton of posts of folks not able to get fastboot to see their devices. I've done some tinkering around and found a set of drivers that work fine for both ADB and Fastboot. (Attached)

• Uninstall any ADB drivers you have on your system. Easiest way is to plug your phone in, go into device manager, right click your phone and select uninstall and check the box that says to remove the driver as well.
• Then download this package, extract, simply run install.exe as admin. Don't panic, it doesn't do anything visual.
• Now plug your phone in and see if adb works, you may need to authorize the computer again on the phone so make sure it's unlocked.
• Reboot into bootloader and check if fastboot sees the phone by using

  fastboot devices

• If not then go back into device manager and right click on your phone, select update driver, let me select one from a list and you should see "Fastboot interface (Google USB ID)". Select this one.
• Check fastboot without unplugging with the same command. Check and see if you can send commands to the phone by using for instance,

  fastboot getvar unlocked

  If the command fails, simply plug the phone into a different USB port and the same Google driver should install again and you should be able to send commands to the phone. Alternatively, you can reboot the phone by tapping the battery out and starting it all over again.
• Now she chooches.

Lemme know if you're still having problems.

Perfect and Easy!!!! :good:

 

[highgel]

thx..ur ma angel

 

[pranciskus2]

I can't find my phone in Device Manager.

 

[Ardiakz]

this is great and works like a charm! thanks!

 

[minhduongtrung]

Thanks!