Database Users

Unable To Unlock Bootloader

Hi,
Have been an owner of an M9+ for a few months now and it's taken me this long to not manage to unlock the bootloader so have caved in and decided to ask nicely for some help / advice.
Firstly, I live in the UK. I bought the handset from Fonis who are located in Dubai (best price, unlocked to any network, etc, etc) so am assuming this handset has got nothing to do with Verizon?
Problems..... the check box for 'allow OEM unlock' is not there. Doesn't exist. There is nothing in Developer Options to do with OEM.
When I boot the phone into Download Mode my pc does not detect it so am unable to proceed in getting the identifier token thingymabob.
Things I have done.... enabled dev options, enabled usb debugging, downloaded all the adb / fastboot stuff, shouted a lot and referred to the handset as a s teaming pile of s**t.
So, am I being extremely thick here and missing something obvious? Have I bought a complete donkey of a handset? (Fonis have good reviews online and that along with the price was a deciding factor in using them).
If anyone can help, great. If any further intel is needed then ask and I shall provide.
Cheers,
Rick

Do you have HTC sync latest installed? That contains the USB driver for the phone for fastboot to work

Yep, latest version of sync is installed. When I open HTC Sync with the phone connected to the PC while in download mode Sync states 'no phone connected'.
Have tried different usb leads and different usb ports but nothing is happening.

p3x982 said:
Yep, latest version of sync is installed. When I open HTC Sync with the phone connected to the PC while in download mode Sync states 'no phone connected'.
Have tried different usb leads and different usb ports but nothing is happening.
Click to expand...
Click to collapse
If you didn't try, maybe try connecting device, remove/uninstall driver of phone device instance in Device manager, reconnect and see if it installs correct driver. Sometimes wrong driver sticks with the phone device, if it was connected before HTC sync installed.

In developer options (in settings) you have to enable the bootloader unlock.
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"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",
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tbalden said:
Do you have HTC sync latest installed? That contains the USB driver for the phone for fastboot to work
Click to expand...
Click to collapse
Will give thata try at the weekend and report back.

kumita-chan said:
In developer options (in settings) you have to enable the bootloader unlock.
Click to expand...
Click to collapse
Hi, as stated in my original post, that option is not on my phone, it doesn't exist.

[GUIDE] Fixing Windows 10 doesn't recognize MTP mode when USB is connected

All right, so you have updated your phone's ROM or you have purchased Windows 10 Pro, you plug your USB cable from the phone to the computer. Phones get charge, if you choose PTP (to transfer photos) it works, but if you select MTP or USB storage you hear a sound like if you had disconnected the cable and phone is not recognized.
This is related to a driver problem. To fix it:
1 - Plug the USB and select MTP connection
2 - Go to your Device Manager (Press Win+R, on the search box write "mmc devmgmt.msc" without quotes). You can use any other way you know to enter D. Manager.
3 - You should see something similar to "Portable devices". Display the flange (if not).
4 - Now right click on something similar to "Unknown Device" (yellow highlighted text) with a yellow tringle in the icon.
5 - Choose "Update driver software"
6 - Select "Browse my computer for driver software"
7 - Select "Let me pick from a list of device drivers on my computer"
8 - You get a list with a lot of possible drivers.
9 - Choose Mobile Devices/Android Phone/Android USB Devices (you should have at least one of them)
10 - Select "MTP USB Device" from the second screen's list of drivers.
*If you do not see Portable Devices in Device Manager then maybe you don't have installed drivers properly. In that case, first download drivers from here and install them. Then follow this guide.
Some screenshots of the proccess (it is in Spanish but what you have to do is the same and is translated in the steps).
1
{
"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"
}
2
3
4
5
6
7
8
That is the most common solution to the problem. If your problem is not fixed with that, then try this:
Published on Microsoft Answers:
Question:
After anniversary update, MTP is not working.
I tried with different devices as well as on many PCs.
In device manager I get this:
The drivers for this device are not installed. (Code 28)
A service installation section in this INF is invalid.
Click to expand...
Click to collapse
Solution:
1 - Go to C:\Windows\INF
2 - Type "wpdmtp.inf" in search bar provided to the right of the address bar in Windows 10.
3 - Once you found it, just right click on it and select install. It will take a very few seconds.
4 - Connect your device to the pc. It should be recognized now.
I hope this can be useful for you.
Any doubt, ask in comments

Problem to recognize device with ADB

Hello all,
after hours of searching and tries, i need some help.
I have Android 8.1 on my Asus Zenfone Max pro M1 and i have a win 10 PC
I have followed this guide --> https://forum.xda-developers.com/as...obs-to-unlock-relock-bootloader-twrp-t3894847
I have unlocked my bootloader with the apk without any problem
My phone is not recognized by adb. I have install drivers (with the phone, try to install also from the guide), when i plug my phone on USB (with USB debugging active) is recognized by Windows in the device manager (without yellow flag)
{
"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"
}
but the command "adb devices" return nothing and like "fastboot devices" when i am on fastboot mode too
I have also tried another usb cable and another PC (on win 7)
I am stuck now, don't know what to do more.. Any clue?

Did you turn on USB debugging & OEM Unlock from developer settings?

debdeep98 said:
Did you turn on USB debugging & OEM Unlock from developer settings?
Click to expand...
Click to collapse
USB debugging is enable but OEM Unlock is not present from developer settings.

Yeah my bad no OEM unlock on asus.. Did you accept that allow pc thing with security key when first connecting to adb? If yes then revoke auth and try connecting. Also reinstall the drivers both asus and adb and try different cables and keep the device in mtp mode.

debdeep98 said:
Yeah my bad no OEM unlock on asus.. Did you accept that allow pc thing with security key when first connecting to adb? If yes then revoke auth and try connecting. Also reinstall the drivers both asus and adb and try different cables and keep the device in mtp mode.
Click to expand...
Click to collapse
I have tried MTP and other mode, different cable including the original one..... Still the same.
Can't revoke auth because adb never recognized my device

OP 6T fastboot device not detected

I had to reinstall Win 10 on my computer and now I'm not able to connect to my 6T in order to root it.
The boot locker is unlocked, I can see it at phone boot. It was unlocked also before last update to OxygenOS 10.3.7.
Debug USB in enabled. When I connect to the phone to the computer it is deceted and I can transfer files.
Whit ADB devices phone is deteted (picture is from all in one tool, using command prompt same result)
{
"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"
}
using fastboot devices the phone is not detected.
installed last official usb drivers (google and oneplus)
Any idea, suggestion or further test that can help?
Thanks

Same problem here. Please help.

Finally I found a working solution.
If you have a laptop you have to disable secure boot.
Then you have to disable signature verification on windows 10 ( How to Enable or Disable Driver Signature Enforcement in Windows 10 | Tutorials (tenforums.com) ).
I used option 3.
Download Oneplus usb drivers ( Download Latest OnePlus USB Drivers for Windows and Mac (getdroidtips.com) ).
Then connect your phone in fastboot mode & open Device Manager on Windows & look for Other > Android device. If it is found, this means windows 10 is not having proper drivers to recognize fastboot device. Now install "OnePlus_USB_Drivers_Setup.exe" & it will show pop up for installing driver & after accepting(this is blocked due to signature verification in normal situation), Android device will be recognized in fastboot mode.

Thanks man, it worked for me.
Just to complete, after istalling the drivers you can restore signature verification and secure boot on Win 10.
Everything will work fine.

[Guide]Another fastboot/fastbootd driver guide for Windows

Background​When I got my OnePlus 8T (after using Samsung devices and a OnePlus 3T for many years) I could access the phone using adb and, when the phone was in Bootloader mode, using fastboot. But I couldn't access the phone in Fastbootd mode.
I tried lots of different things but none of them worked for me and, worst of all, many of the solutions required downloading files from untrusted sources.
I finally decided to see if the Google USB driver would help and, to my surprise, it fixed the fastbootd problem. So I uninstalled the drivers that were being used for Bootloader mode, the Google driver used for Fastbootd mode,
{
"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"
}
and then did a clean install of the Google USB driver so that I could document the process.
Installation​Without a suitable driver when connected in Bootloader (or Fastbootd mode), my phone shows up under "Other devices" as "Android" with a yellow warning triangle:
I downloaded the Google Windows USB driver from https://developer.android.com/studio/run/win-usb, extracted the contents, and installed the driver by right-clicking on usb_driver/android_winusb.inf and selecting Install:
Next, I booted my phone into Bootloader mode (Note: if Bootloader mode works for you and you didn't want to uninstall the driver, then boot into Fastbootd), found my phone in Device Manager (Other devices), double-clicked it (Android) to pull up the driver details and clicked the Update Driver... button. On the next screen select the second option "Browse my computer for drivers":
And on the next screen I selected "Let me pick from a list of available drivers":
I chose "Androd Device" and clicked on Next:
This brings up the following screen:
(Note: I also have Samsung drivers installed). I clicked on "Google, Inc." under Manufacturer, then "Android Bootloader Interface" from Model and clicked on Next.
I got a warning, to which I replied "Yes":
and the installation completed successfully:
Notice that the phone now shows up as "Android Bootloader Interface" under "Android Device" in Device Manager. Double clicking on it now shows the driver is installed:
And that's it!
I now find that I can also boot into Fastbootd mode, even though I only installed the driver for Bootloader mode.
Note: this driver also works for my OnePlus 3T