No OS installed, boots to TWRP but PC does not recognise device

J-_-M-_-C

Member
Feb 16, 2013
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So I've got a 3T which currently has no OS installed, just the TWRP3.2.3-0. The problem is that every time I connect the phone to the PC, the PC will only recognise the phone as Unknown USB device (Device Descriptor Request Failed). Due to this I cannot use adb to transfer files to the phone or transfer files directly to the internal storage.

I have tried using Minimal adb but device isn't found, tried different USB ports and cables too. For some reason the recovery does not read devices attached to OTG as I have also tried to transfer files using this method.

Any suggestions as to what I can do to make my PC recognise this device? Thanks
 

J-_-M-_-C

Member
Feb 16, 2013
40
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first of all check your usb cable then use this op3/t tool
it will install all drivers, unlock, decrypt, install twrp and dm-verity issue solution
https://forum.xda-developers.com/oneplus-3/oneplus-3--3t-cross-device-development/toolkit-root-recovery-drivers-t3651138
But I cannot enable USB debugging since there is no OS installed, however I have not yet tested this program.

The USB port was working normally before the OS was removed. This problem started once there was no OS and just recovery. Is there truly no other way I can transfer the ROM to the phone? Thanks for your help
 

Hayatzada

Senior Member
Jul 26, 2013
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But I cannot enable USB debugging since there is no OS installed, however I have not yet tested this program.

The USB port was working normally before the OS was removed. This problem started once there was no OS and just recovery. Is there truly no other way I can transfer the ROM to the phone? Thanks for your help
while having TWRP installed pc should recognize your phone, if encrypted phone shows Oneplus 3 in my computer Location without showing internal storage,
Check your USB cable, then boot into fastboot(Boot loader By pressing Power & volume up button together while phone is in off state) connect your cable to pc and phone and run the tool, to install op3 driver select number from your pc
install driver (1)
unlock bootloader (3)
decrypt(10)
install twrp (5)
boot into TWRP from fastboot screen select recovery and reboot
Push superSU (7) (it'll copy superSU into internal memory) install supersu otherwise phone lose root and go back to encrypted state and you cant see internal storage in pc
reboot into recovery and copy your rom, gapps and Magisk 17.1, install them
You are done now
 
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J-_-M-_-C

Member
Feb 16, 2013
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while having TWRP installed pc should recognize your phone, if encrypted phone shows Oneplus 3 in my computer Location without showing internal storage,
Check your USB cable, then boot into fastboot(Boot loader By pressing Power & volume up button together while phone is in off state) connect your cable to pc and phone and run the tool, to install op3 driver select number from your pc
install driver (1)
unlock bootloader (3)
decrypt(10)
install twrp (5)
boot into TWRP from fastboot screen select recovery and reboot
Push superSU (7) (it'll copy superSU into internal memory) install supersu otherwise phone lose root and go back to encrypted state and you cant see internal storage in pc
reboot into recovery and copy your rom, gapps and Magisk 17.1, install them
You are done now
Thank you for this information, however I get as far as installing the drivers but the PC still shows phone as Unknown USB Device (Device Descriptor Request Failed) and therefore the program does not find the phone. Tried this on two different PC's.
 

Hayatzada

Senior Member
Jul 26, 2013
294
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Lahore
Thank you for this information, however I get as far as installing the drivers but the PC still shows phone as Unknown USB Device (Device Descriptor Request Failed) and therefore the program does not find the phone. Tried this on two different PC's.
please please please check your cable
 

J-_-M-_-C

Member
Feb 16, 2013
40
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Go to advance in TWRP then click on sideload and flash the os using sideload command i. e. adb sideload filename. zip
Since the phone is only recognised as Unknown USB Device (Device Descriptor Request Failed) in the the win10 Device Manager, fastboot devices does not find any attached devices and I cannot transfer files through ADB.

I have tested the cable I am using with another phone and I was able to transfer files to the other phone using the same USB cable.
 

WQW

Member
Jan 17, 2017
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Since the phone is only recognised as Unknown USB Device (Device Descriptor Request Failed) in the the win10 Device Manager, fastboot devices does not find any attached devices and I cannot transfer files through ADB.

I have tested the cable I am using with another phone and I was able to transfer files to the other phone using the same USB cable.
i have the exact same problem as u my friend i had that problem so i just sideloaded my stock rom and searching for a method to fix this if u find a way to make the device recognised in twrp pls let me know
 

johnybravo.1981

Senior Member
Oct 14, 2012
83
2
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Since the phone is only recognised as Unknown USB Device (Device Descriptor Request Failed) in the the win10 Device Manager, fastboot devices does not find any attached devices and I cannot transfer files through ADB.

I have tested the cable I am using with another phone and I was able to transfer files to the other phone using the same USB cable.
Just sideload dude. I came across the same issue 2 days ago.
Or flash using usb otg.
 
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J-_-M-_-C

Member
Feb 16, 2013
40
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Just sideload dude. I came across the same issue 2 days ago.
Or flash using usb otg.
I have tried using USB OTG but the recovery does not detect my connected usb drive. Regarding sideload, when I boot to recovery and select adb sideload, and connect the phone to my PC I get a USB device not recognised message. The commands adb devices and fastboot devices do not list my phone.
 

Hayatzada

Senior Member
Jul 26, 2013
294
68
0
Lahore
I have tried using USB OTG but the recovery does not detect my connected usb drive. Regarding sideload, when I boot to recovery and select adb sideload, and connect the phone to my PC I get a USB device not recognised message. The commands adb devices and fastboot devices do not list my phone.
Try this guide if your phone detects as Qualcomm in device manager then proceed otherwise check your charging port (type c port) as you mention usb otg didn't detected and usb cable worked with other phones.
don't forget to clean your type c port if dirty or rusted. :good:
https://forum.xda-developers.com/oneplus-3/how-to/guide-mega-unbrick-guide-hard-bricked-t3405700
 
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J-_-M-_-C

Member
Feb 16, 2013
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Try this guide if your phone detects as Qualcomm in device manager then proceed otherwise check your charging port (type c port) as you mention usb otg didn't detected and usb cable worked with other phones.
don't forget to clean your type c port if dirty or rusted. :good:
https://forum.xda-developers.com/oneplus-3/how-to/guide-mega-unbrick-guide-hard-bricked-t3405700
I have tried to install the qualcomm driver but when I go to Device Manager -> Update Driver -> Have Disk and select the qcser.inf file I get the following message: "The folder you have specified does not contain a compatible software driver for your device. If the folder contains a driver, make sure it is designed to work with Windows for x64 based systems." I have disabled driver signature verification. No idea why nothing seems to be working.
 

Hayatzada

Senior Member
Jul 26, 2013
294
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Lahore
I have tried to install the qualcomm driver but when I go to Device Manager -> Update Driver -> Have Disk and select the qcser.inf file I get the following message: "The folder you have specified does not contain a compatible software driver for your device. If the folder contains a driver, make sure it is designed to work with Windows for x64 based systems." I have disabled driver signature verification. No idea why nothing seems to be working.
which method do you try? i suggest full method, first one didn't worked for me .
 

Hayatzada

Senior Member
Jul 26, 2013
294
68
0
Lahore
I have tried Method 1 and arrived till step 6. Then when I try to select the file I get the error I mentioned in my previous post.
try to connect otg keyboard and type in TWRP advance section selecting terminal
if keyboard works, your type c port is ok otherwise change or repair the port
 

J-_-M-_-C

Member
Feb 16, 2013
40
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try to connect otg keyboard and type in TWRP advance section selecting terminal
if keyboard works, your type c port is ok otherwise change or repair the port
Tried to connect a keyboard with otg and it did not work with this phone. It worked fine using the same otg cable on another phone.
 
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