My Galaxy S7 Edge has a broken screen (totally black, and doesn't respond to touch). However, the phone does turn on and is recognized by Kies 3 and SmartSwitch. I am also able to unlock the phone via thumbprint (sometimes), or via OTG USB keyboard input (always).
The problem is that the USB connection mode is PTP, and I can't see the screen to change it to MTP so that SmartSwitch can retrieve data from the device.
I don't have USB debugging enabled on the device, so I can't change the settings that way.
And since the S6, there's no video output, so I can't buy an MHL+OTG adapter to view the output on a TV and change the settings via mouse.
I've tried booting into recovery mode by holding volume down + power + main button for 30 seconds, but nothing seems to happen. Even if I get into recovery mode, I'm not sure if I can enable ADB, and if that setting would persist after a restart.
I've also called Samsung support, which was useless.
Are there any options for me to either enable ADB, change the USB connection mode, or send video output to another display?