[Razer Phone Questions & Answers] Waffle265:
I made this post to hopefully help me help you help us.

My Razer Phone is currently unable receive any commands while in fastboot mode/bootloader.

This seems to be a fairly common problem that I see some people are running into without having any concrete solution. I have tried numerous suggestions and then some. Therefore, I want to provide as much information and background to the problem to try and help anyone with more experience that is willing to get to the bottom of this.

So for some background, I successfully rooted my Razer Phone with help from both of these threads:

Rooting Android 9 December Update With Magisk (No TWRP)(Global)

and

[TWRP + MAGISK] FULLPROOF Guide for all Razers! Wifi Fix!

I primarily used the first thread listed to achieve root.

The phone is currently on the stock ROM, rooted with magisk installed. I do not have TWRP installed. It works perfectly fine under normal use.

I am trying to revert to stock and relock my bootloader using Razer's guide HERE. When using the 'flash_all' script that the guide references, the script fails, because the phone cannot receive fastboot commands.

I followed Razer's installation guide PDF to install the adb/fastboot drivers.

I have also tried using ClockworkMod's Universal ADB Driver.

EDIT: I also tried using [Tool] Latest ADB Fastboot and USB Driver installer tool for Windows

The phone is currently on the stock ROM, rooted with magisk installed. I do not have TWRP installed. It works perfectly fine under normal use.

I'm pretty sure I have installed the adb drivers correctly. I can use adb commands while android is running. It's listed when using the "adb devices" command. It successfully restarts and enters the bootloader after typing "adb reboot bootloader", but after typing "fastboot device", it only outputs "< waiting for any device >" and waits. I have also tried using the command "fastboot -i 0x1532 devices" as suggested in a related thread, but this just returns "fastboot.exe: unknown option -- i" and fails.

I have also tried selecting "Android ADB Interface", as well as "Android Bootloader Interface" when installing the google usb driver. I even tried using the third option, no luck.

Now here's why I say that I'm pretty sure that I have the drivers installed correctly:

[IMG="Device Manager"]https://i.postimg.cc/BQQZch3h/Image-1.jpg[/IMG]

This is what is displayed in Device Manager when the phone is in fastboot mode and connected to my PC after installing the drivers.

It displays normal when android is running with or without USB debugging enabled.

I have tried this on a few Windows 10 PCs and get the same result. So, I wouldn't be able to tell if this is a Windows problem or if it is my phone:

[IMG="Bootloader"]https://i.postimg.cc/FsW-rPjsh/Image-2.jpg[/IMG]

This is what my bootloader shows. Besides the serial number I blocked out, notice how some data is missing? Could this be the problem?

I'm curious to know the method of root everyone else having this problem had used and whether their bootloader looks like this.

I understand the community for this phone isn't as active as it used to be.

So, thank you to anyone in advance for the help and your time.