Database Develop

ADB Driver - Access is Denied

So I just installed Windows 7 on my machine and was trying to ADB with my Android since I used it ALL the time on Windows XP.
I put the phone in Debug mode and plugged into my computer and told it the location of the driver. It seems to work well for a second and then it tells me that there was a problem installing the driver. It then says:
HTC ADB Composite Device Driver (not sure exactly of this...)
Access is Denied
Click to expand...
Click to collapse
Anyone else seeing anything similar on Vista or Windows 7? BTW I already tried this in Safe Mode as well.

Stigy said:
So I just installed Windows 7 on my machine and was trying to ADB with my Android since I used it ALL the time on Windows XP.
I put the phone in Debug mode and plugged into my computer and told it the location of the driver. It seems to work well for a second and then it tells me that there was a problem installing the driver. It then says:
Anyone else seeing anything similar on Vista or Windows 7? BTW I already tried this in Safe Mode as well.
Click to expand...
Click to collapse
I have mines working perfectly on Win7. Maybe you don't have admin rights on your computer? Just a guess

xidominicanoix said:
I have mines working perfectly on Win7. Maybe you don't have admin rights on your computer? Just a guess
Click to expand...
Click to collapse
Nope I have administrative rights and even tried it in safe mode.
Would you be able to zip up the drivers you used or link to where you downloaded them from?
So strange.

Even if you have admin rights, UAC can f it up.
Make sure you right click on command prompt and click "Run as Administrator"
Also, do you have x64? That requires a signed drivers. I don't remember if the ADB drivers were signed by microsoft, but if they aren't, it won't work unless you apply the work around

http://forum.xda-developers.com/showthread.php?t=532719
The link in this thread usbdeview seems to fix alot of driver issues

Stigy said:
Nope I have administrative rights and even tried it in safe mode.
Would you be able to zip up the drivers you used or link to where you downloaded them from?
So strange.
Click to expand...
Click to collapse
i got mines from the 1.6 sdk .. x64

Simple Solution
Here is a simple solution without having to read that long thread:
For future reference, here is how to install the drivers or fix the drivers should they not be working.
Everything you need is contained within this:
http://www.divshare.com/download/8845496-f72
This is the howto documentation
This is how to get your android phone to connect to you PC
to use functions like adb and other developer tools.
If you have installed the phone before but adb function dont work
then:
1) Run USBDeview
2) Select the list item(s) that have the word "android" within the description
3) Right Click > Uninstall
If you have done the above, or are plugging your phone in for the first time:
1) Plug in phone
2 a) When prompted to install drivers select the "android driver" folder
contained within this tutorial
2 b) If no message appears or you get a message saying drivers failed
to install. Goto device manager
2 b i) start > All Programs > accessories > run
type devmgmt.msc and press ok.
3 b) find the android device in device manager, it will have a warning icon
next to it and be in a section like unknown.
4 b) Right click and install driver
5 a) When prompted to install drivers select the "android driver" folder
contained within this tutorial
Click to expand...
Click to collapse

USBDeview is awesome but....
Even after removing all of the drivers associated with my device, as soon as I try to install the fresh new drivers, I still get "Access Denied" at the end of the install.

digimancer said:
Even after removing all of the drivers associated with my device, as soon as I try to install the fresh new drivers, I still get "Access Denied" at the end of the install.
Click to expand...
Click to collapse
I have this same issue on an Ideos U8150 and on XP... At one point in the past it was working (before I flashed Cyanogen 7). Since then I have tried numerous driver packages, both specific to my phone and generic, and have had no luck getting past the access denied error.. I have even gone as far as changing the registry permission as well as checking all of my folder permissions... I am stumped.

Adb root - run that from command prompt.

B-man007 said:
Even if you have admin rights, UAC can f it up.
Make sure you right click on command prompt and click "Run as Administrator"
Also, do you have x64? That requires a signed drivers. I don't remember if the ADB drivers were signed by microsoft, but if they aren't, it won't work unless you apply the work around
Click to expand...
Click to collapse
I know it a while ago since you posted this but still, it helped me fix the "Access denied" thing which i didn't know how to fix. I installed ADB drivers 3 times... anyways, tnx :good:

So If you are like me you had this same issue in 2022. Idk if it will be a fix for you but it was for me.
follow this youtube video for the exact setup so you can get hopfully the same out com to the T.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
1. make sure you're in administrator mode for command prompt.
2. The file name has changed from what it was so instead of doing
cd adb\platform-tools_r30.0.4-windows\platform-tools
It's now this
cd adb\platform-tools\
This will get you to the correct path if you followed the file placement in the video.
next all you have to do is type
adb devices on the command prompt. to test if it worked
other things that you might have to try is seeing if the driver it self is being blocked. you might also have to turn off and back on developer mode. View other posts in this thread if it's still stuck for you. Hopefully I helped one person at least.

[Q] Recovery Menu in Bootloader 90.78 ?

Hi,
A few weeks ago I wanted to install CM7 RC3 on my Motorola Milestone. It seemed that I couldn't get into the recovery menu. I could get to the Triangle screen with holding 'X' while booting, but I couldn't pull down the menu (using vol Up + Camera).
After a lot of fiddling I found out that when I flashed bootloader 90.74 (I was at 90.78) and booted while holding the camera key, that I could access the recovery menu (using vol Up + Camera).
Now I want to install CM7 Final, but I can't seem to get into that menu anymore. I'm just stuck at the Triangle screen.
I've tried bootloader 90.78 & 90.74, but they all didn't help.
Anyone have any clue ?
Thanks

Tuytje said:
Hi,
A few weeks ago I wanted to install CM7 RC3 on my Motorola Milestone. It seemed that I couldn't get into the recovery menu. I could get to the Triangle screen with holding 'X' while booting, but I couldn't pull down the menu (using vol Up + Camera).
After a lot of fiddling I found out that when I flashed bootloader 90.74 (I was at 90.78) and booted while holding the camera key, that I could access the recovery menu (using vol Up + Camera).
Now I want to install CM7 Final, but I can't seem to get into that menu anymore. I'm just stuck at the Triangle screen.
I've tried bootloader 90.78 & 90.74, but they all didn't help.
Anyone have any clue ?
Thanks
Click to expand...
Click to collapse
You can use adb to enter recovery menu directly.
Check this link.

Thanks for replying so fast.
I've been able to get to the recovery screen (Triangle screen), but can't seem to open the menu with adb.
It's the opening of the menu that is the problem, which you normally do via Volume Up + Camera key.
Unless I can install CM7 Final via adb ?

Tuytje said:
Thanks for replying so fast.
I've been able to get to the recovery screen (Triangle screen), but can't seem to open the menu with adb.
It's the opening of the menu that is the problem, which you normally do via Volume Up + Camera key.
Unless I can install CM7 Final via adb ?
Click to expand...
Click to collapse
Flash any rom, preferably GOT 2.2.1 from here. Then make sure you have USB debugging on from settings->applications->development->USB debugging.
Connect phone to PC. Download AOR and extract it to your sdcard. Download CM7 and put in in openrecovery/updates folder. Then move to the directory where you have adb installed. Usually it is in c:/android_sdk/tools.
Then in command prompt, type the following.
adb devices ( it should show your phone's no as shown below)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
adb remount
adb shell "echo 'boot-recovery ' > /cache/recovery/command"
adb shell "echo '--update_package=SDCARD:update.zip' >> /cache/recovery/command"
adb shell "reboot recovery"
It should take you to AOR directly. Flash CM7.
Let me know if it works.
[email protected]

The line "adb remount" fails with the following message "remount failed: Operation not permitted".
I take it that adb needs root access, how can I achieve this ?
GOT 2.2.1 is already installed
Android itself is rooted (by EasyRoot)
SuperUser is installed
I have also installer Android Terminal Emulator, that one is set allowed in SU
Thanks

Tuytje said:
The line "adb remount" fails with the following message "remount failed: Operation not permitted".
I take it that adb needs root access, how can I achieve this ?
GOT 2.2.1 is already installed
Android itself is rooted (by EasyRoot)
SuperUser is installed
I have also installer Android Terminal Emulator, that one is set allowed in SU
Thanks
Click to expand...
Click to collapse
Try the same with usb mode set to charge only or portal & tools.

I should make a thread for this
http://forum.xda-developers.com/showthread.php?t=796679&page=26

sileshn: I don't see how that would make a difference ? I would still need that root on adb
zeppelinrox: I understand half what your thread says I'm still pretty new at this, never intended to go this deep. I only wanted CM7 installed
How does your thread help me do this ?
Thank you

Tuytje said:
sileshn: I don't see how that would make a difference ? I would still need that root on adb
zeppelinrox: I understand half what your thread says I'm still pretty new at this, never intended to go this deep. I only wanted CM7 installed
How does your thread help me do this ?
Thank you
Click to expand...
Click to collapse
There are many apps for rooting your milestone on the market. Superuser, z4root, universal androot, super one click root to name a few. Use any one of those to root your phone.
You can use Zeppe's method. Once you apply his script , it will take you into AOR directly without any button pushes on reboot.

I was under the impression that adb needed a different kind of root. My bad in that case
I'll try that. Thanks

AWESOME! (I really use that word, but this situation calls for it )
zeppelinrox your scripts worked. I'm back to CM7. Thanks!

Mine is 90.78 and recovery menu is working like a charm! I'am running CM7.

Change DPI Without Root

PizzaSauce said:
Make use of that super saturated 2k panel!
1. Download the Android SDK
2. Extract it to a desired location
3. Navigate through the extraction to SDK > Platform Tools
4. SHIFT+RIGHT CLICK anywhere inside this folder and click "open command window here"
6. Make sure you have the correct drivers for your phone
5. Turn on USB Debugging and plug your phone into the computer
6. Tell your phone to trust the computer
7. In the command window, run the following command but replace *** with the desired DPI (I use 540)
Adb shell wm density ***
8. Reboot phone to have changes fully take effect.
Click to expand...
Click to collapse
Just tried this on my S6Edge (changed to 540 DPI) and I love it. Enjoy!

Can you post a screen shot of it. :')

I love that this is making rounds. Thanks for quoting!

Do any of the apps look messed up?

on mac?
Has anyone successfully done this on a Mac? I've watched tons of YouTube videos and tutorials and still can't get it.

I did this on a Mac with no problem. Just followed instructions.

hoth said:
I did this on a Mac with no problem. Just followed instructions.
Click to expand...
Click to collapse
Would you mind helping me out?
1. Download the Android SDK
2. Extract it to a desired location
3. Navigate through the extraction to SDK > Platform Tools - I see "Platform" and "Tools", 2 separate folders - which one?
4. SHIFT+RIGHT CLICK anywhere inside this folder and click "open command window here" - How do I do this on a Mac?
6. Make sure you have the correct drivers for your phone
5. Turn on USB Debugging and plug your phone into the computer
6. Tell your phone to trust the computer
7. In the command window, run the following command but replace *** with the desired DPI (I use 540) - Can you clarify on this step? Same on a Mac?
Adb shell wm density ***
8. Reboot phone to have changes fully take effect.

Once you have everything installed and the phone hooked up to the Mac in USB debugging mode, then start the Terminal app. Once the prompt comes up type: "/users/[username]/library/android/sdk/platform-tools/adb shell wm density 540"
Remember to change [username] to your "username". I also had to replug the phone in twice I believe before the command worked.

hoth said:
Once you have everything installed and the phone hooked up to the Mac in USB debugging mode, then start the Terminal app. Once the prompt comes up type: "/users/[username]/library/android/sdk/platform-tools/adb shell wm density 540"
Remember to change [username] to your "username". I also had to replug the phone in twice I believe before the command worked.
Click to expand...
Click to collapse
It's saying "No such file or directory". I have the Android SDK downloaded and extracted - am I missing the step on how to install the SDK?

ericdmiller said:
It's saying "No such file or directory". I have the Android SDK downloaded and extracted - am I missing the step on how to install the SDK?
Click to expand...
Click to collapse
If you already have the Android SDK installed, make sure you also have the "SDK Platform Tools" installed, that's what you need to run ADB. If you don't see a folder titled "Platform Tools" you don't have the necessary files. Google around!

How does this effect battery or performance?

hoth said:
I did this on a Mac with no problem. Just followed instructions.
Click to expand...
Click to collapse
Got it finally, thanks for your help. Is there any way to fix the camera app showing the older dpi?

Can someone please post a screenshot of this DPI corrected screen? I'm trying to determine if it's that much more useful than the 5x5 grid option in the Touchwiz Launcher.

Screenshots
h3ck said:
Can you post a screen shot of it. :')
Click to expand...
Click to collapse
Here are some screens
BEFORE
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
AFTER
I have also noticed that this messes up the home screen and I am not certain how to fix it yet. The unused space on the right and bottom are unusable. I cannot put icons there and I cannot make it stretch.

What's stock density just in case I don't like?

jbarcus81 said:
What's stock density just in case I don't like?
Click to expand...
Click to collapse
Write down the number before you change it?

jbarcus81 said:
What's stock density just in case I don't like?
Click to expand...
Click to collapse
610
Also I have found a way around my home screen issue (I installed the Google now Launcher) and it works fine. Camera and a few other Stock apps still do not work correctly. I am assuming they are not responsive designed and rather are made for a specific screen size.

littleneutrino said:
610
Also I have found a way around my home screen issue (I installed the Google now Launcher) and it works fine. Camera and a few other Stock apps still do not work correctly. I am assuming they are not responsive designed and rather are made for a specific screen size.
Click to expand...
Click to collapse
Stock is 640, not 610.

hoth said:
Once you have everything installed and the phone hooked up to the Mac in USB debugging mode, then start the Terminal app. Once the prompt comes up type: "/users/[username]/library/android/sdk/platform-tools/adb shell wm density 540"
Remember to change [username] to your "username". I also had to replug the phone in twice I believe before the command worked.
Click to expand...
Click to collapse
thanks

Sadly i finally gave up and went back to the stock 640. The camera and phone apps were driving me crazy as they were not designed to be responsive. Personally i think that everything on this phone is WAY to large on the screen and it makes the phone look Childish but until they make the Phone and Camera apps Responsive so that they fill the screen regardless of Density then i cannot use this

Question HELP needed for unlocking the Mi ultra

HI
I tried to unlock my MI ultra ... but the unlock tool doesnt see my phone
I did .. developper option ... the OEM unlocking , USB debugging and the Mi unlock add account
I signed into same account on the latest unlock tool
fastboot mode
but nothing appear on the unlock tool screen
what did I miss ?

You have to install the Fastboot drivers on your Windows.

Afg Playa said:
You have to install the Fastboot drivers on your Windows.
Click to expand...
Click to collapse
I DID
But same issue .. I will try to use different PC

Anesthetist said:
HI
I tried to unlock my MI ultra ... but the unlock tool doesnt see my phone
I did .. developper option ... the OEM unlocking , USB debugging and the Mi unlock add account
I signed into same account on the latest unlock tool
fastboot mode
but nothing appear on the unlock tool screen
what did I miss ?
Click to expand...
Click to collapse
On Windows 10 with your phone plugged in just go to windows update and you'll find a driver install request

Anesthetist said:
HI
I tried to unlock my MI ultra ... but the unlock tool doesnt see my phone
I did .. developper option ... the OEM unlocking , USB debugging and the Mi unlock add account
I signed into same account on the latest unlock tool
fastboot mode
but nothing appear on the unlock tool screen
what did I miss ?
Click to expand...
Click to collapse
Did you do the unlocking in fastboot mode? Try another usb cable, some people are having issues with some.

Run the unlock tool as an administrator - the only thing which solved it for me under Windows 10.

Send me a private message with teamviewer details. I can help

Make sure the following is done prior to booting into fastboot:
Make sure that developer options is enable.
Make sure Unlock OEM is enabled
Make sure you have linked your MI account to your phone
Make sure USB debugging is enabled
Step 1: Place the phone in fastboot and plug it into your PC.
Step 2: Navigate to your windows search bar, enter "device manager" and open the top result. It should now show you several different drivers. You should see one named Android under "Other Devices."
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
If you see a little triangle, then you just need to download the driver for it.
I downloaded these driver
Step 3: Uncompress the files and open the folder up. You should see a file called Mi USB Driver. Run that file.
Step 4: A window will pop up asking you to unplug your Phone. Unplug it from the USB and replug it back in. It should then change the message to "Installing Drivers"
Step 5: Open the MI Unlock Tool and refresh. You should now have the ability to unlock the phone.
Let me know if that helped, or if you need additional assistance.

panda24z said:
Make sure the following is done prior to booting into fastboot:
Make sure that developer options is enable.
Make sure Unlock OEM is enabled
Make sure you have linked your MI account to your phone
Make sure USB debugging is enabled
Step 1: Place the phone in fastboot and plug it into your PC.
Step 2: Navigate to your windows search bar, enter "device manager" and open the top result. It should now show you several different drivers. You should see one named Android under "Other Devices."
View attachment 5329617
If you see a little triangle, then you just need to download the driver for it.
I downloaded these driver
Step 3: Uncompress the files and open the folder up. You should see a file called Mi USB Driver. Run that file.
View attachment 5329623
Step 4: A window will pop up asking you to unplug your Phone. Unplug it from the USB and replug it back in. It should then change the message to "Installing Drivers"
View attachment 5329625
View attachment 5329627
Step 5: Open the MI Unlock Tool and refresh. You should now have the ability to unlock the phone.
View attachment 5329629
Let me know if that helped, or if you need additional assistance.
Click to expand...
Click to collapse
Thank you so much
I have been very busy lately with covid 19 pts and Urgent operations ... I will follow your instructions as soon as I can
Thank you so so much

Anesthetist said:
Thank you so much
I have been very busy lately with covid 19 pts and Urgent operations ... I will follow your instructions as soon as I can
Thank you so so much
Click to expand...
Click to collapse
Please let me know if it worked for you.
I'll have to do the same procedure soon.

Question My computer doesn't recognize the phone in fastboot even with drivers installed

Hi all,
I really need your help, my computer doesn't recognize the phone in fastboot, I've installed different drivers and none of them work, in device manager it appears as Android with the yellow exclamation mark. I've already enabled USB Debugging mode, not sure what am I missing, please help.

Check in another USB Port, use original xiaomi's wire...and install latest USB drivers

I have the same problem, i'm using the original xiaomi wire and already installed lastest usb drivers.. the fact is that when I plug in the cell phone in fastboot mode the computer keeps sounds as connecting and disconnecting the device (I used two wires and two different computers)

Yup exact same thing, I hope somebody knows how to fix it and help us out.

Try with mi flash tool software for the computar... And let the program install the original firmware again... I think you can get rid of the problem

Ricardo 182 said:
Try with mi flash tool software for the computar... And let the program install the original firmware again... I think you can get rid of the problem
Click to expand...
Click to collapse
I'll try that, thanks for the help.

I had the same problem, and I fixed it changing the cellphone drivers in device manager, from: "Android" to ---------> "Xiaomi Composite MDB Interface".
Hope it helps someone.

seyren00 said:
I had the same problem, and I fixed it changing the cellphone drivers in device manager, from: "Android" to ---------> "Xiaomi Composite MDB Interface".
Hope it helps someone.
Click to expand...
Click to collapse
Can you please tell me how do I do that?

Ricardo 182 said:
Try with mi flash tool software for the computar... And let the program install the original firmware again... I think you can get rid of the problem
Click to expand...
Click to collapse
Tried that but still don't recognize the phone

seyren00 said:
I had the same problem, and I fixed it changing the cellphone drivers in device manager, from: "Android" to ---------> "Xiaomi Composite MDB Interface".
Hope it helps someone.
Click to expand...
Click to collapse
worked perfect for me! thank you!

liam_lost said:
Can you please tell me how do I do that?
Click to expand...
Click to collapse
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

seyren00 said:
View attachment 5365973
Click to expand...
Click to collapse
Thanks I tried but not sure why it shows this android one

liam_lost said:
Thanks I tried but not sure why it shows this android oneView attachment 5366067
Click to expand...
Click to collapse
Thats it bro, change that to Xiaomi Composite MDB interface, the first time my cellphone showed the same.

Ricardo 182 said:
Check in another USB Port, use original xiaomi's wire...and install latest USB drivers
Click to expand...
Click to collapse
Hi, where do I get the USB drivers? Even the official website says to make sure that "your PC has necessary drivers", but they don't provide any link where you can get them.
The Unlock Tool only has a "Check" button next to the version number, which says "5.5.224.24(Already latest)" and again, no drivers check. There are tons of fishy websites that claim to have the drivers and I have already tried several of them, but no success. Your help would be much appreciated.

Pino76 said:
Hi, where do I get the USB drivers? Even the official website says to make sure that "your PC has necessary drivers", but they don't provide any link where you can get them.
The Unlock Tool only has a "Check" button next to the version number, which says "5.5.224.24(Already latest)" and again, no drivers check. There are tons of fishy websites that claim to have the drivers and I have already tried several of them, but no success. Your help would be much appreciated.
Click to expand...
Click to collapse
https://c.mi.com/thread-3221402-1-0.html try using this guide bro.

seyren00 said:
https://c.mi.com/thread-3221402-1-0.html try using this guide bro.
Click to expand...
Click to collapse
Thank you, unfortunately, it didn't work for me. My device is still not showing up.

liam_lost said:
Hi all,
I really need your help, my computer doesn't recognize the phone in fastboot, I've installed different drivers and none of them work, in device manager it appears as Android with the yellow exclamation mark. I've already enabled USB Debugging mode, not sure what am I missing, please help.
Click to expand...
Click to collapse
Hi, after almost 2 days of constant researching and trying and failing and testing, I have finally figured it out! You need two things: MediaTek Driver and disabling Driver Signature Enforcement in Windows 10. It's because normally, the (64-bit) Windows 10 system won't allow you to install an unsigned driver and the Mediatek Driver is unsigned.
Here are the steps:
1. Press the Windows key on your keyboard, open PC settings
2. Go to Update & Security
3. Go to Recovery tab
4. Press & hold Shift key on your keyboard and click the Restart now button (in the Advanced startup section)
5. Select Troubleshoot ->Advanced setup -> Startup Settings and press Restart
6. Press 7 number key corresponding to "Disable driver signature enforcement" entry.
The system will now boot with the Driver Signature Enforcement disabled (it's going to be automatically enabled with the next restart). Download the Mediatek Driver (official source), unzip the file. Here's how I installed the driver:
1. Press the Windows key, type Device Manager and open the utility program
2. Click the top item in the list (your PC's name) and click Action in the menu and select Add Legacy Hardware.
3. Click Next in the Wizard, select Install hardware manually, and again Next and Next again.
4. Click Have Disk, Browse, navigate to the unzipped folder: SmartPhoneDriver > x64 > Unsigned infs and select the file android_winusb.inf. Click OK and select Media Tek Inc. in the left pane and then Next and Finish.
Your phone will now finally appear in the Unlock Tool.
This should work for all Note 10s users who also happen to have a 64-bit Windows 10 machine. Let me know how it went for you.

hey Guys, i´m new in the forum. But i had the same problem and i´m bringing the solution.
This error happens because Windows doesn´t recognize the bootloader, then you must install manually the bootloader´s driver and connect again your phone, so simple. I´m attaching the driver in this post.
Cheers.

download google usb driver: https://developer.android.com/studio/run/win-usb
connect phone to pc in fastboot mode. then go to device manager and update related driver named: android.
choose have disk and select Android_USB.inf file. then highlight Android bootloader interface and install driver. in win 10 must disable driver signature verification

seyren00 said:
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After searching for a long time, I found that this is the solution that works 100%. At last I was able to register the unlock of the bootloader today after a week of searching how to do it, since the driver did not work, thank you.