Tascam 16 Owner's Manual page 51

When the "'ModelMixer_Installer.pkg' can't be opened
because it was not downloaded from the Mac App Store. Are
you sure you want to open it?" security warning message
appears, click the "Open" button.
This warning message might also appear when the
Gatekeeper setting is something other than "Allow
applications downloaded from: the Mac App Store. "
The file still might not open and
can't be opened because it was not downloaded from the Mac
App Store." might appear again.
In this case, copy the file from the folder where it is to the
desktop or another folder, and then open it. Alternatively,
change the Gatekeeper settings to "Allow apps downloaded
from: App Store and identified developers" and try opening it
again.
When the Gatekeeper setting is "Allow
applications downloaded from: the Mac App
Store"
"'TASCAM_MODEL MIXER_Installer_x.xx.dmg' is an application
downloaded from the Internet. Are you sure you want to open
it?" might appear as a security warning message. In this case,
click the "Open" button.
11
"'ModelMixer_Installer.pkg'
- USB audio interface functions
Changing the Gatekeeper setting
The Gatekeeper setting can be changed using the "Allow
applications downloaded from:" item on the "General" page
of the "Security & Privacy" pane of the System Preferences.
To change this, you must click the lock icon ( ) at the bottom
left and enter a password to unlock the settings.
This setting will lock again when you close the System
Preferences by clicking the
for example, or when you click "Show All" to close the open
pane.
ATTENTION
Changing the Gatekeeper settings could result in
securityrisks.
If you changed the Gatekeeper setting to decrease security
(use one of the lower settings), set it back to the original
setting after updating the driver and/or firmware.
button or typing command-Q,
53
TASCAM Model 16