USB Data Not Working

[krifpv]

Hello,

I have a Xiaomi Mi 9T Pro phone on which USB data transfer stopped working. Neither connecting the phone to the computer, nor connecting a USB OTG device work (although fast charging works fine). I'm not sure when it happened, however I think I updated the firmware/vendor sometime around then. Also, I'm running the latest Arrow OS 11 (which is quite out of date now..) I tried changing the board with the USB port but to no avail. I've also tried multiple USB cables, which I confirmed to work on another device. I even tried booting the phone into EDL (as well as fastboot) mode, however device manager doesn't recognize the device (and I doubt it's the drivers as it would probably result in the device appearing as QHSUSB_BULK, not "device descriptor request failed").

Has anyone dealt with such a problem before? Could it be caused by bad vendor/firmware? Or is it a hardware issue, which could be diagnosed? Perhaps the custom ROM could be somehow safely updated without a USB connection (with it being necessary to format data)? Thanks for any help!

 

[muellermeierschmidt]

Did you ever find the solution for your issue? I have a very similar problem, which appeared as far as I can remember without having done any updates before:

On my Mi 9T Pro I can slow charge (very slow, complete recharge takes 8+ hours), but I do not get working quick charge or a working usb connection.

I had the same problem a while back which was solved by changing the USB board. This time however, I have changed the USB board multiple times (at first I thought the new board was faulty) but I did not help.

 

[habeck.colibretto]

Did you ever find the solution for your issue? I have a very similar problem, which appeared as far as I can remember without having done any updates before:

On my Mi 9T Pro I can slow charge (very slow, complete recharge takes 8+ hours), but I do not get working quick charge or a working usb connection.

I had the same problem a while back which was solved by changing the USB board. This time however, I have changed the USB board multiple times (at first I thought the new board was faulty) but I did not help.

Hello, I have similar problem. USB OTG doesn't work at all (in custom recovery or in rom). I guess changing USB charging port may help... but I'm not sure. Did you manage this problem? (I have other two 9t pro which works so it's not problem with USB cable).