Unlocking V30 (H930) - can´t get over "fastboot oem device-id" - LG V30 Questions & Answers

Guys, is there anybody please, who can help me with getting Device ID through Fastboot? I can't get it alone without your help, trying it half a day without any success.
I am doing it step by step with LG official guide http://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryId=CTULRS0702 , but I can't get much far.
My problem is, that when I am rebooting using "adb reboot bootloader", the device will reboot, after that, I type "fastboot oem device-id" and than, I am stucked at < waiting for any device >. Tried that on 2 WIN PCs and on 1 Macbook Pro, but without any luck, everywhere same thing happens...can you please help me, what can be wrong, what should I do differently or what am I doing wrong?
Thank you very much.

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TomasDrabek said:
Guys, is there anybody please, who can help me with getting Device ID through Fastboot? I can't get it alone without your help, trying it half a day without any success.
I am doing it step by step with LG official guide http://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryId=CTULRS0702 , but I can't get much far.
My problem is, that when I am rebooting using "adb reboot bootloader", the device will reboot, after that, I type "fastboot oem device-id" and than, I am stucked at < waiting for any device >. Tried that on 2 WIN PCs and on 1 Macbook Pro, but without any luck, everywhere same thing happens...can you please help me, what can be wrong, what should I do differently or what am I doing wrong?
Thank you very much.
Click to expand...
Click to collapse
Not sure why you need the device ID.
See the WTF bootloader unlock Instructions THREAD and unlock bootloader, install TWRP and root -- without having to receive permission from LG.
What you're trying to do (get unlock code from LG) is no longer necessary.
Since you already have H930, just go to that thread and fastboot flash the new_unlock.bin code provided.
Sent via open market LG US998 V30/V30+

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ChazzMatt said:
Not sure why you need the device ID.
See the WTF bootloader unlock THREAD and unlock bootloader, install TWRP and root -- without having to receive permission from LG.
What you're trying to do (get unlock code from LG) is no longer necessary.
Since you already have H930, just go to that thread and fastboot flash the new_unlock.bin code provided.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Well, thank you for your reply..tried the step by step guide from the topic you mentioned, but my problem persits..there is some problem with my PC/phone/FASTBOOT command, because it looks like the PC can´t see the phone in the bootloader mode. I typed "adb reboot bootloader", it works well, but than, when I had to type "fastboot flash unlock new_unlock.bin", same < waiting for any device > on command line keep stucked and nothing more happened.

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TomasDrabek said:
Well, thank you for your reply..tried the step by step guide from the topic you mentioned, but my problem persits..there is some problem with my PC/phone/FASTBOOT command, because it looks like the PC can´t see the phone in the bootloader mode. I typed "adb reboot bootloader", it works well, but than, when I had to type "fastboot flash unlock new_unlock.bin", same < waiting for any device > on command line keep stucked and nothing more happened.
Click to expand...
Click to collapse
In the WTF Instructions (Section 7) there are a dozen Trouble Shooting tips. Almost all deal with ADB issues.
Try another (different) source for ADB installation.
Try different USB port, different USB cable, different computer.
That's just a few. See the WTF Instructions Section 7 for all of them and try them all.

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TomasDrabek said:
Well, thank you for your reply..tried the step by step guide from the topic you mentioned, but my problem persits..there is some problem with my PC/phone/FASTBOOT command, because it looks like the PC can´t see the phone in the bootloader mode. I typed "adb reboot bootloader", it works well, but than, when I had to type "fastboot flash unlock new_unlock.bin", same < waiting for any device > on command line keep stucked and nothing more happened.
Click to expand...
Click to collapse
There could be an issue with your fastboot drivers. I was also unable to get fastboot commandant to work on my laptop but it worked just fine on my desktop.
After getting root I did try a reinstallation of windows on my laptop and was able to get fastboot to work fine on my laptop though; so if all else fails, including reinstalling fastboot drivers a windows reinstall may help.
I used the adb and fastboot from here https://forum.xda-developers.com/showthread.php?t=2588979

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So I figured out what the problem was: when using an original OEM USB-C cable from the box, everything worked great and now I am installing TWRP and trying to root phone...hoping that everything will go through without any problems. In the meantime, thank you all for your answers guys:

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TomasDrabek said:
So I figured out what the problem was: when using an original OEM USB-C cable from the box, everything worked great and now I am installing TWRP and trying to root phone...hoping that everything will go through without any problems. In the meantime, thank you all for your answers guys:
Click to expand...
Click to collapse
So "different cable" was the answer.

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Exactly
My phone is already rooted (mainly for Adaway), so now, I am 100% satisfied. Thanks a lot.

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ChazzMatt said:
Not sure why you need the device ID.
See the WTF bootloader unlock THREAD and unlock bootloader, install TWRP and root -- without having to receive permission from LG.
What you're trying to do (get unlock code from LG) is no longer necessary.
Since you already have H930, just go to that thread and fastboot flash the new_unlock.bin code provided.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Me for example, I wouln't like to DOWNGRADE my phone - which is neccessary with the way you suggest.
For me changing USB port in the PC does nor help. And i'm using the original cable from the box.
Have the same problem.
Specs: Lg v30+ Lgh-H930DS rev 1.1

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Martinezz123 said:
Me for example, I wouln't like to DOWNGRADE my phone - which is necessary with the way you suggest.
For me changing USB port in the PC does nor help. And i'm using the original cable from the box.
Have the same problem.
Specs: Lg v30+ Lgh-H930DS rev 1.1
Click to expand...
Click to collapse
Go HERE and read about rooting your V30:
ROOT Your LG V30!
https://forum.xda-developers.com/lg-v30/how-to/root-v30-t3927154
Read POST #1.
It will give you an overview of what you need to do and direct you to the WTF Instructions thread.
If you read the that post or even the WTF Instructions, you would understand you are merely TEMPORARILY downgrading to early Oreo to have access to the WTF bootloader unlock exploit. After that you are urged to update back to newer firmware (at least last Oreo, if not Pie).
You are aggravating me. You keep posting in many old threads instead of going to the threads I keep telling you to go to.
Go read all my answers to your questions today and please post in relevant thread I am pointing you to over and over. Is there something about the attached screenshot you cannot read or comprehend? I have posted that link several times now.
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
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In the WTF Instructions thread (Section 7) are over a dozen Touble Shooting tips. You have only mentioned two that I happened to reference here. The full list is in the WTF Instructions.

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I understand uou are upset but I can't go through all the pages in a long therad to uncover one answer to a simple problem which sould be explained at the beggining in the first place.
Im' lookng for the simplest metod, and the one from LG seems the most easygoing.
Why can't I get the phone to show me its ID?
It's not the problem of that other topic isn't it?

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Martinezz123 said:
I understand uou are upset but I can't go through all the pages in a long therad to uncover one answer to a simple problem which sould be explained at the beggining in the first place.
Im' lookng for the simplest metod, and the one from LG seems the most easygoing.
Why can't I get the phone to show me its ID?
It's not the problem of that other topic isn't it?
Click to expand...
Click to collapse
I'm upset because you're not listening. The answer is EASY.
Yes, it's easy to to bootloader unlock and root the H939DS. But you have to read the WTF Instructions and follow them.
I've given you the link several times.
ALL H930DS bootloader unlocked and rooted HAD to follow those WTF instructions, which I wrote. There is no other method.
Until you unlock your Bootloader and Root, any other questions you ask from any other thread than the WTF INSTRUCTIONS thread, I will ignore because that means you don't actually want help.
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No one is asking you to go through an "entire thread" for instructions you need to read. If you think that, then you are failing to read basic sentences. You need to read the WTF INSTRUCTIONS and follow them. PERIOD.
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You don't need the Device ID whatsoever for bootloader unlock and root. So that's a totally irrelevant question. Which means you aren't paying attention to my answers.
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I've answered your questions repeatedly and you are not following the simple answer being given.

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Seems like you've just ignoed what I said bat anyway I'll manage it by myself.
thanks.