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Guide to fix TWRP or CWM bootloop

This is how i fix my TF300TG stuck on recovery. I hope the steps descried below will help.
Long story, short:
For some reasons, seems like the WIPE command from TWRP and CWM recovery screw the partitions.
No partitions or microSD card can be mounted.
The tablet is now booting only in recovery mode or in fastboot mode (the screen with three icons - RTK, Android and WIPE) instead of Android.
IMPORTANT:
If your tablet reboot in fastboot mode DONT WIPE IT AGAIN! Just skip step 4.
First of all, MAKE SURE YOR BATTERY IS CHARGED!
Recharge your tablet for at least two hours.During the flashing process the tablet doesn`t charge.
Use the original Asus USB cable that came with the tablet or a high quality replacement cable. Cheap cables can and will cause problems.
Use a laptop or desktop with known good USB ports. If you have problems, try a diferent computer, some USB chips can cause troubles.
Disable the antivirus or screensaver, sleep etc...
1.Download these files:
from ASUS website: http://www.asus.com/Tablets_Mobile/ASUS_Transformer_Pad_TF300TG/#support
Drivers&Tools, on the OS tab select Android
click on Utilities and download latest version of ASUS PC Sync (you will need this for drivers)
click on Firmware and download the lastest available (you will need this for BLOB file)
Minimal ADB and Fastboot: http://d-h.st/gbx
install ASUS PC Sync and Minimal ADB and Fastboot (on fastboot installer check the box that make a shortcut to desktop)
unzip the firmware file downloaded from ASUS site
you will get a second zip file, unzip this one too
the folder unzipped from the second one contain a file called blob
copy or move the folder to the root of your drive C: or D: or whatever drive letter you have
2.Installing drivers:
connect your tablet to PC
you will get a message about Windows couldnt find driver bla...bla, ignore it and keep your tablet plugged
IMPORTANT: even if you previously installed ASUS PC Sync or other drivers and Windows recognize your tablet, you still need to change the driver.
right-click on My Computer-Properties and click Device Manager
find the Asus Android device - should be with an exclamation mark on it (the driver is not installed sign)
right-click on it and choose:
Update Driver Software..., Browse my computer for driver software, Let me pick from a list of device drivers on my computer, Have disk, Browse
go to C:\Program Files or Program Files (x86), ASUS, ASUS Android USB Drivers, Android and select android_winusb.inf
Asus Android Composite ADB interface will appear in the list of device drivers - don`t hit next yet!
uncheck Show Compatible Hardware and select Asus Android Bootloader Interface from the list, now hit next
3.ADB mode:
open Minimal ADB and Fastboot from desktop - from this point, keep it open
type: adb devices - and you should see some numbers under the List of device attached - thats your tablet
if you can`t see the tablet, try this command: adb start-server
4.Booting to "fastboot":
there are two ways to do this:
a) from adb window type: adb reboot bootloader
or
b) reset and hold vol-down (didn`t work for me, but maybe will work for someone else)
the three icons will appear on screen - NOW YOU ARE IN FASTBOOT MODE
if none of the above work try this:
in adb window type: adb reboot
wait until the tablet enter in recovery menu and type in adb window:
adb shell dd if=/dev/zero of=/dev/block/mmcblk0p3
adb reboot bootloader
5. Flasing the blob
the credits for this part goes to buster99. He is the one who figured out the right commands for formatting partitions and flashing back the OS
here is his post: http://forum.xda-developers.com/showpost.php?p=44244313&postcount=12
here we go, one at the time in adb window:
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
fastboot -i 0x0B05 flash system x:\your blob folder\blob (here you enter the path to your blob file, must end with blob, to point at the file)
fastboot -i 0x0B05 reboot
THE FLASH SYSTEM COMMAND WILL TAKE SOME TIME
be pacient and wait until the progress bar is 100% full on the tablet and you get the command prompt back in the adb window.
After reboot, the Android is back on.
Cheers and good luck!!

A big thank you alexhosu,
several months ago that my tablet was blocked, but I still kept hope
a solution would be found. I'm really happy for you and thank you again for sharing.
Long live XDA

me too
Thanks from me too; was enjoying 5.0 (timduru) on my TF300 when I went to upgrade and idiotically managed to get into a TWRP bootloop(interrupted a format of \data and then used 'wipe' from the boot screen by mistake...)
Your solution has saved my tablet
Am now carefully reinstalling Katkiss

Thanks
This saved my (veggie) bacon too, something went wrong when flashing new ROM (most likely user error - e.g. my fault). Tablet woud go into an eternal boot wouldn't finish booting, nandroid recovery did the same. Used this technique and have a working stock ROM from which I intend to reinstall TimDuru's Lollipop.
Thanks again

Followed the instructions.. Worked well, but getting error 963 when installing/updating anything in Play Store. Seems to be related to storage permissions. Some users are suggesting using format instead of erase. What's the difference? Could that help.
I did factory reset, reflashed and used fix permissions in TWRP but no luck...
alexhosu said:
This is how i fix my TF300TG stuck on recovery. I hope the steps descried below will help.
Click to expand...
Click to collapse

Big thanks from me.
I killed my tablet with an accidental restore to factory defaults while in cm12, an got stuck in an endless bootloader boot loop.
my tablet came back too life at the end of section 4 after adb shell dd if=/dev/zero of=/dev/block/mmcblk0p3.
although getting adb to talk to the tablet was a fluke.
I just kept trying to send "adb shell dd if=/dev/zero of=/dev/block/mmcblk0p3" while the tablet was loading (boot looping)

6 months of believing my tablet was dead, after letting CM12 do its own update thing, and now, thanks to the above instructions, I'm back online and its working with the stock rom.
Thank you so much for this. No idea why I couldn't find these instructions before, then I just gave up, back in business now!

Thanks a lot for your guide, this is what helped me fortunately unbrick my device, i was stuck in a boot loop with a broken recovery

Another tablet saved. Know your work is appreciated.

i have the same problem, the system doesn't pass the ASUS logo, i tired to log into fastboot (reset + volume down) and i was able to see the three icons but adb doesn't recognize my device. i see the drivers are correctly installed but no working adb. Any help is highly appreciated.

ajeevlal said:
i have the same problem, the system doesn't pass the ASUS logo, i tired to log into fastboot (reset + volume down) and i was able to see the three icons but adb doesn't recognize my device. i see the drivers are correctly installed but no working adb. Any help is highly appreciated.
Click to expand...
Click to collapse
Did you try entering "fastboot devices" or just "adb devices"? adb wont find your device in the bootloader, but using fastboot commands should unless it truly is not connecting for some reason.

Act32.97 said:
Did you try entering "fastboot devices" or just "adb devices"? adb wont find your device in the bootloader, but using fastboot commands should unless it truly is not connecting for some reason.
Click to expand...
Click to collapse
yeah Fastboot devices worked but it was not letting me flashing the rom, when i push the blob file it says 'sending' and stays in the same state for days.

ajeevlal said:
yeah Fastboot devices worked but it was not letting me flashing the rom, when i push the blob file it says 'sending' and stays in the same state for days.
Click to expand...
Click to collapse
I would try moving the blob to the root of the C drive and try the 7th command "fastboot -i 0x0B05 flash system C:\blob" just to make sure sometime of file permission type issue isn't happening on the pc side. Other than that the only kind of issue I think it could be would have to be the connection with the drivers, although if erasing the partition's works fine, I don't really see what could be going on.

I followed all the steps and delete, but when loading the file update.blob I get this error:
C: \ Users \ mikel> C: \ Users \ mikel \ Android \ android-sdk \ platform-tools \ fastboot flash system update.blob
error: can not load 'update.blob'
Can someone help me out?

TF300T KissKat
Theziggy said:
This saved my (veggie) bacon too, something went wrong when flashing new ROM (most likely user error - e.g. my fault). Tablet woud go into an eternal boot wouldn't finish booting, nandroid recovery did the same. Used this technique and have a working stock ROM from which I intend to reinstall TimDuru's Lollipop.
Thanks again
Click to expand...
Click to collapse
Hey, I know that I'm a couple years late on this. But, I was just given a Asus Transformer TF300T, and attempted to install the Kisskat custom rom. I unlocked the device with little issues. Rooted with little issues. But when it came to flashing the rom. I get his error saying that "no MD5 file found" and holds it there for a couple of minutes. Then gives me the failed install. My only option is to boot into recovery and restore the stock JB 4.2. If you could point me in the right direction, I would greatly appreciate it. I've searched the forum for someone with a similar issue, and couldn't find it. I hope that I'm not alone on this one. It would kill me to be stuck with the stock rom.

Hi i made a format data from TWRP recovery, and now i am in a recovery loop and got error of mount partitions, i can access to recovery and the screen with 3 icons, but when i plug to my pc it shows as uknown usb, i install the drivers but dosent reconose as a fastboot device, in minimal adb when i write fastboot devices the result is empty pleace help me.

Muito obrigado!
I know this must seem odd, being such an old thread and all but, after several years adding apps and changing ROMs on my wife's TF300T (my gift!) only these past weeks I had the need to search for help, after installing nougatella 7.1, which I did with success, only to stumble on endless logo loops and loading processes without conclusion. Don't get me wrong, the ROM looks great and it wasn't that hard to install but, after two weeks or so, gave me this problem and after correcting it and installing again the ROM, I got in trouble again...
After some five hours googling and trying different stuff, I finally found this thread and twenty minutes ago (around 2:AM) my ASUS returned to its (Jellybean) life!
Alexhosu, thank you so very much for such a detailed, yet easy to follow guide and, if you happen to come to Portugal on vacation and visit Setúbal, I'll have a bottle of Moscatel waiting for you!
Many thanks to Droidbound (who got me off the hook the first time the tablet went nuts!), and also Kevinthefixer, Gtanner00 and some other very inteligent, patient and thoughtful people, and all the guys who shared their difficulties and in a way helped me find the people with the fix.
For anyone interested in trying this method, I would say that it's paramount that you should stick exactly with what is asked and should pay real atention to what is the correct ROM update to download and use. If anyone needs help with translation to Portuguese, just say so.
Again, thank you so much for this!
JMonteiro

alexhosu said:
This is how i fix my TF300TG stuck on recovery. I hope the steps descried below will help.
if none of the above work try this:
in adb window type: adb reboot
wait until the tablet enter in recovery menu and type in adb window:
adb shell dd if=/dev/zero of=/dev/block/mmcblk0p3
adb reboot bootloader
5. Flasing the blob
Click to expand...
Click to collapse
Thanks for your help :good: and I'm sorry for my basic English, but here is another tablet saved. Your instructions were clear and my tablet is working.
I hope this information helps, based in the next link (user sszyman): https://forum.xda-developers.com/showthread.php?t=2275035&page=9
in which he recommends using the following commands too:
adb shell dd if=/dev/zero of=/dev/block/mmcblk0p2
adb shell dd if=/dev/zero of=/dev/block/mmcblk0p8
adb shell dd if=/dev/zero of=/dev/block/mmcblk0p1
With these commands and "adb shell dd if=/dev/zero of=/dev/block/mmcblk0p3" I was able to solve my Bootloop problem.
Honestly I don't know which of the commands worked, I used all several times.

Moto G 2013 (xt1033) with no OS, can't adb push/sideload rom.

I have a Moto G xt1033 with no operating system.
I can recognize the device using fastboot devices and adb devices. (drivers are installed properly)
CWM recovery is installed properly.
There's no operating system and the sdcard is empty.
When I try to use the command adb push to get the rom.zip into the sd card (or data/media folder) it just won't work, it will give me a 'protocol failure' after a couple of seconds.
When I try to use the command adb sideload it will immediately crash (at 2%) and give me the error: failed to write data 'protocol fault <no status>'.
I've also tried to install a stock rom using flashing through fastboot, but it also failed.
Anyone has any idea of how I can save this phone?

It sounds like something is not right with your ADB / Fastboot setup. What operating system is on the PC / Laptop?
You might want to try reinstalling ADB:
http://forum.xda-developers.com/showthread.php?t=2317790​
Alternatively, a quick way to get access to Recovery Mode ADB is to use Linux, either as a LiveCD or full install. The command to install ADB / Fastboot on Ubuntu is:
sudo apt-get install android-tools-adb android-tools-fastboot​

Thanks for the tips, my computer's OS is Windows 7, but the problem was related to my computer's front USB ports, all 6 of them. As soon as I connected to one of my back USB port it worked.. Most likely because my front ports are 2.0 and the back ones 3.0. Never thought it would make a difference in this case, kinda feel stupid for having wasted so much time looking for a solution when it was so simple.
Thanks for the reply anyway @lost101.

XT1032
Am experiencing the same problem,
unable to sideload/push stock rom gets stuck on push at 31%
Recovery CMW, able to boot into recovery
getvar=all, i don't even have imei shown in that!
pls help me fix it...
Thanks a load in advance

As soon as I select 'ADB sideload' on TWRP, the phone is no longer recognized by the desktop computer nor ADB.exe...
But when I select cancel, the device is then recognized. This is version 3.3.1-0
Edit: It seems to only logical solution is to use 'adb push [image_name] /sdcard/.'

Help With Asus TF300T

Sorry for my bad english from ahead of time.
I got a Asus Tf300T that last year Dec 2015 I had installed using TWRP recovery and updated the firmware to 5.0. All was smooth from Dec to 2 Days Ago.
When I turned on the machine it was stuck on the Asus Logo. So I turned off the machine and turned it back on and same thing. Did the vol - + power button. Got into the recovery mode with the 3 icon (recovery,usb,wipe). I click on the recovery got up toward the Team Logo then it got stuck. I turned of the machine tried it again same thing. When I connected the device to the PC it told me APX . I again whent into the 3 icons and selected the usb icon the tablet froze , I though might be due to the driver, I did a search online how to browse for the driver and installed the driver (Andriod ADB Interface)
But I'm unable to see it as fastboot. Now when I disconnected the device. I turned on the device again , now this time it shows the Asus logo with a blue bard bellow it then it loads all the way then black screen. I have no clue what else to do if someone can help me with this would I be very grateful

locohunter said:
I installed the driver (Andriod ADB Interface)
Click to expand...
Click to collapse
If you are able to access your tablet via ADB, please try following on your own risk:
-start adb devices with the command "shell" .After that ~ # appears.
-Then copy into the opened line: dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1
-Enter and copy into the opened line: dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1
-Enter.
The device should boot normally! It was successful several times.
Good luck!

ebonit said:
If you are able to access your tablet via ADB, please try following on your own risk:
-start adb devices with the command "shell" .After that ~ # appears.
-Then copy into the opened line: dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1
-Enter and copy into the opened line: dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1
-Enter.
The device should boot normally! It was successful several times.
Good luck!
Click to expand...
Click to collapse
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
>adb devices
adb server is out of date. killing...
* daemon started successfully *
List of devices attached
>adb devices shell
Usage: adb devices [-l]

I have no clue what else to do if someone has the time to even remote connect to help me.

that 3 icons screen should allow fastboot access (no need to select anything on it, just leave 3 icons on screen) - try if it will be discovered.
if yes - go here: http://forum.xda-developers.com/showthread.php?t=2399698
Sent from my TF300T using XDA-Developers mobile app

I don't get to go to the 3 icons anymore I only get a blue bar bellow the ASUS logo then when it fully loads the bar the screen stays black.

I did a clean install of win 7 pro 64 bit. When I hooked up the device I get APX driver missing.
Should I download the SDK to install the driver ? Or? How? If someone can walk me tru it.

locohunter said:
I did a clean install of win 7 pro 64 bit. When I hooked up the device I get APX driver missing.
Should I download the SDK to install the driver ? Or? How? If someone can walk me tru it.
Click to expand...
Click to collapse
First of all, the USB Driver for your TF3300T in general you will find in the Asus "PC-Suite" getting on the Asus driver site.
Furthermore you need mandatory "Minimal ADB and Fastboot" in order to access your device for different installations via flash from here: http://forum.xda-developers.com/showthread.php?t=2317790.
Further questions?

I Installed the PC suite with Asus sync and all Minimal ADB.
When I hook up the device it still tells me APX is missing driver.

locohunter said:
I Installed the PC suite with Asus sync and all Minimal ADB.
When I hook up the device it still tells me APX is missing driver.
Click to expand...
Click to collapse
Please download the USB driver for TF300T here: https://androidmtk.com/download-asus-usb-drivers.
After that please look at this: http://www.androidheat.com/adb-fastboot-install-drivers-setup/

ebonit said:
Please download the USB driver for TF300T here: https://androidmtk.com/download-asus-usb-drivers.
After that please look at this: http://www.androidheat.com/adb-fastboot-install-drivers-setup/
Click to expand...
Click to collapse
Downloaded the usb driver.
PC still shows APX when connecting, did a browse for driver on the location of the extracted folder.
It doesn't find anything in the folder.

locohunter said:
Downloaded the usb driver.
PC still shows APX when connecting, did a browse for driver on the location of the extracted folder.
It doesn't find anything in the folder.
Click to expand...
Click to collapse
Nobody knows what happened to your device in the past. APX mode is a special low-level diagnostic and device-programming mode for NVIDIA Tegra–based devices sometimes called nvflash mode. You don't need it for that case.
To exit APX mode, press and hold the power button for about six seconds. The device should immediately boot into its normal mode.
If you have access via ADB, I would like to advise to reset your tablet on the last Asus stock rom. How to? you will find in that forum.

How to enable USB debuggin with broken touchscreen?

Hi
I have a old nexus with broken touchscreen . I want to use it via mirror on pc.
unfortunatly USB debuggin wasn't enable so i can't install any app.
any tips?
thanks
PS: i saw many use usb adapter to connect a mouse but i don't have it
EDIT: right now i just need a rom/kernel with USB debugging mode enabled by default

the screen still works , only the touch screen is broken
power , and volume bottons still work
the device is rooted

If it's only installing apps you could install them via recovery. (as zip)
Or you could check for a cheap replacement touchscreen.

nonameleft4me said:
If it's only installing apps you could install them via recovery. (as zip)
Or you could check for a cheap replacement touchscreen.
Click to expand...
Click to collapse
thanks for the answer!
sorry i forgot to mention that i need USB debuggin for make the app works correctly.
I'm trying now to find out what rom i have installed and maybe then find a kernel with OTG support . (yes i found a otg cable )
i'm not a expert of rooting

I think google has an app called voice control. Not sure how operational it is though. Supposedly you can control the entire system via voice.

nonameleft4me said:
I think google has an app called voice control. Not sure how operational it is though. Supposedly you can control the entire system via voice.
Click to expand...
Click to collapse
i need to unlock the phone and tap on the widget "search" to start voice command .
I think the best way is to find a way to enable OTG and then use a usb mouse

Boot into Recovery and mount*Data*partition.
Open a shell on PC and type:
adb pull /data/property/persist.sys.usb.config ~/
Repace*~/*with home directory of your OS.
Open that file in a text editor and you would possibly see*mtp*written there. Change it to*mtp,adb.
Note that sometimes Android doesn't understand the text file changes if the line terminator is "DOS Terminators" which Notepad would probably do on Windows (mine is Linux so no issue here).
In that case, I would suggest not using*adb pullbut doing:
adb shell echo 'mtp,adb' > /data/property/persist.sys.usb.config
You may verify that the*echo*command overwrote the file by using:
adb pull /data/property/persist.sys.usb.config ~/
and seeing the file's content in some text editor.
Unmount*Data*and reboot into Android OS. USB Debugging would probably be enabled.
Sent from my Aqua Trend using Tapatalk

Itzabhaysingj said:
Boot into Recovery and mount*Data*partition.
Open a shell on PC and type:
adb pull /data/property/persist.sys.usb.config ~/
Repace*~/*with home directory of your OS.
Open that file in a text editor and you would possibly see*mtp*written there. Change it to*mtp,adb.
Note that sometimes Android doesn't understand the text file changes if the line terminator is "DOS Terminators" which Notepad would probably do on Windows (mine is Linux so no issue here).
In that case, I would suggest not using*adb pullbut doing:
adb shell echo 'mtp,adb' > /data/property/persist.sys.usb.config
You may verify that the*echo*command overwrote the file by using:
adb pull /data/property/persist.sys.usb.config ~/
and seeing the file's content in some text editor.
Unmount*Data*and reboot into Android OS. USB Debugging would probably be enabled.
Sent from my Aqua Trend using Tapatalk
Click to expand...
Click to collapse
thanks!
i tryed
1) i went in recovery mode
2) i connect via usb the nexus4 to my pc
3)went in "mounts and storage"
4)then "mount /data"
5)in cmd i tryed your command "adb pull /data/property/persist.sys.usb.config" but i says i'm unauthorized
i checked via command "adb devices" and it return a alphanumerica string plus "unauthorized"
i tryed then to
Reboot your phone into recovery mode.
Connect it to your computer.
Open the terminal and type:
cd ~/.android
adb push adbkey.pub /data/misc/adb/adb_keys
adb shell reboot
but it still says error : device unauthorizated . please check the confirmation dialog on your device

i tryed also with a different version of adb and now gives me after "adb devices" an "offline" response
NB: if i connect the phone (not in recovery mode) via usb i can copy files in and out (i can explore onlyfew folders) , maybe this could help.

hartman11 said:
i tryed also with a different version of adb and now gives me after "adb devices" an "offline" response
NB: if i connect the phone (not in recovery mode) via usb i can copy files in and out (i can explore onlyfew folders) , maybe this could help.
Click to expand...
Click to collapse
Sorry but this could not help... Now only thing you can do is connect any USB mouse to your phone via otg cable (as it is not costly also), and you can also try USB gamepad. I also have used USB gamepad before when my touchscreen was not working.
Second thing you can do is download any android device manager for your PC like mobogenie or mobilego they directly install any app from play store to you android device, through USB.And I don't think they need USB debugging option to be enabled.
Sent from my Aqua Trend using Tapatalk

my problem is not installing an app (i could do it in recovery mode with a .zip) but enabling the USB debuggin
I have a otg cable but not the "Y" type ( the one with power source ) , also i don't know if OTG is supported by my kernel . I would like to install maybe another kernel which has OTG support and usb debuggin mode enable by default but i don't know what kind of rom i have D:

right now i just need a rom/kernel with USB debugging mode enabled by default

up

Op7pro not responding to fastboot commands

Hey, im having trouble finding working ways to root my op7pro GM1913 (OOS 11.0.4.1 GM21BA)
Ive been trying this https://www.xda-developers.com/unlock-bootloader-root-oneplus-7-pro/
Currently trying to unlock bootloader. (Step 2)
I can connect via adb but when i go to bootloader/fastboot i lose connection to the phone.
Ive tried regular adb command tools and "TOOL ALL IN ONE" When the phone is on it responds to adb commands but when i need fastboot commands its not working and i can see the device id dissapear from the all in one tool.
I have tried multiple usb ports (2.0 and 3.0) and multiple usb C cords (Op oem + Samsung) Tried removing Windows signature verification and installing oneplus usb drivers, but it gets stuck at "Execute the commands..." (99% or so) When i try again it finds some installation files. When im in bootloader, Windows device manager still shows a generic android phone. Oem unlocking and usb debugging is on, also set default usb configuration to file transfer. No help.
I want to keep Oxygen os, but i want to be rooted and have magisk, preferably TWRP too but im open to other ways.
Windows 10 20H2 if that matters. (Latest update for me)
Oneplus 7pro GM1913 (Eu nordic)
Oxygen os 11.0.4.1 GM21BA

Download a Linux distro and install adb and fastboot like this: https://forum.xda-developers.com/t/guide-unlock-flash-root-for-the-pixel-2-xl-taimen.3702418/
Just download adb and fastboot tools package from Google, extract it,open command prompt inside where you extract it and enter these in terminal:
sudo install adb dmtracedump e2fsdroid etc1tool fastboot hprof-conv make_f2fs mke2fs mke2fs.conf sload_f2fs sqlite3 /usr/local/bin
sudo mkdir -p /usr/local/lib64
sudo install lib64/libc++.so /usr/local/lib64
Then adb --version (enter) fastboot --version (enter) like Nathan says in guide. Super easy and I guarantee you if you go this route you won't have any hiccups. Sounds like stupid windblows driver issues or outdated adb/fastboot tools. One of the two. Are you flipping on dev options and check marking little box that pops up on your phone to allow it to communicate with PC? A simple : adb devices (enter) should make it appear on phone screen. You don't even have to install Linux, you can boot it off a live USB. Takes about one minute to make one. If you make one you can boot the live USB , download adb and fastboot, and install as Nathan's guide says then reboot when you are done and your back in windblows. IDK why anyone wouldn't want Linux installed though. Best decision I ever made was switching from windows to Linux about 9 years ago. It really makes anything you do to your devices MUCH easier to do!! This may sound stupid but have you rebooted your PC? Because you will definitely need to , probably more than once on windblows to get it to work.

Thank you for the reply. No stupid questions, yes i tried rebooting pc/phone. Ill try your way and report in a couple days.

Solution is simple. From Android 11 on, OnePlus (and Android phones in general) uses the universal drivers, you just need to install them in Windows in order to use fastboot commands. See my answer in this post.

There are a few things you can try if your OP7 Pro is not responding to fastboot commands:
1. Make sure you have the latest drivers installed for your phone.
2. Try using a different USB cable.
3. If you're using Windows, try running the fastboot commands from a command prompt with administrator privileges.
4. Try booting your phone into recovery mode and running the fastboot commands.