any solution ?

[post-master]

https://i.imgur.com/n4GPKhW.png

`C:\New folder>adb devices
List of devices attached
85bbc700 device

C:\New folder>python dump_keys.py

2022-02-02 04:43:33 PM - root - 38 - ERROR - No devices. Please connect your Android device.

C:\New folder>`

Note: Phone is already rooted. Phone model "MI Note 5 Pro"

[dslisanoob]

try changing it to device = frida.get_usb_device(1) in line 14 of dump_keys.py -> it adds a delay

[larsk2]

doesn't seem frida is running properly? download frida binary, unpack with winrar or something, rename file to "frida-server" copy it to phone Download folder.
https://github.com/frida/frida/releases/download/15.1.17/frida-server-15.1.17-android-arm64.xz
use python version below 3.8.6

then run following from command prompt:

adb shell
su (make sure phone screen is turned on, and that you're on main screen, "Grant" permission for computer to su)
mv sdcard/Downloads/frida-server /data/local/tmp
chmod +x /data/local/tmp/frida-server
/data/local/tmp/frida-server &
try running dump_keys again, wait until "HOOKS COMPLETED" then play DRM content on your phone