Moto Z Play locked how to enable usb debug so I can recover and backup files

[AC Question]

Pattern locked phone and forgot..
Phone online and able to install apps remotely using google play.
But unable to backup photos, files.

Trying different options to root and use fast boot or adb.

Does not seem to work.

How do I turn on USB debug on this phone via fast boot ?

I tried adb sideload /Users/roopasri/Downloads/twrp-3.0.3-0-addison.img

But Installation failed stating footer is wrong signature verification failed

cannot unlock oem -- I get (bootloader) Check 'Allow OEM Unlock' in Android Settings > Developer
(bootloader) Options

Please help guide on recovery and backup options

 

[udazavlanje]

No, you can't turn it on. I had a similar problem over a week ago with my wife's Z play (screen died). The only hope was flashing the stock firmware with Fastboot command but it failed , so in the end I managed to do factory reset and kinda gave up.