Thanks for your responses @ziggutas and @Lakotaubp
Okay so I'll play with dd to set Antbox on partition

Thanks

Hello! Thank you to support the oneplus 3(T). I have an issue to enable the developer mode.

I'm running Ubuntu 16.04(2020-06-12) on Oneplus3.

When I enable the Developer mode button and setup the Lock security with passcode, I connect the device to my computer, and nothing happen (no popup to trust the device...etc).
So when I run adb device is not listed or unauthorized.
Tested to run adb from ubuntu 20.04 and macOS (same issue).
The issue should come from the devices.

If you have any solution please?

Thank you