I noticed on my s90 the usb cable to wall or PC only detects in the phone for charging.
I cannot use the USB cable to MTP, PTP, ADB or file transfers. I thought it was my laptop, but I now tried 5 different laptops. It's the PHONE. I noticed in the settings and "CONNECTIONS" menu where it shows, bluetooth, NFC and USB Cable, the USB Cable option is grey out and never available.
I already went into in the developer mode and tried to modify usb cable settings with nothing.
Anyone know how to get usb cable working? I want to file transfer via usb cable, then root and hack this phone to install andoid 10 or 11.