Denon HEOS AVR Service Manual page 57

3. How to check the firmware version, service region settings and service release type
(1) How to check the version of the HEOS (illustrations below show the HEOS 3 model)
Perform the operations below to display the "About" menu from the "Settings" menu of the HEOS app.
Step 1 →
Tap the "My Devices". Tap the "HEOS3R".
→ Step 4 →
Tap the "About". Check the displayed Version, Region and
Release Type.
Step 2 → Step 3
Tap the "Advanced".
Step 5
Player:Firmware version
Release:Service Release Type
Locale:Service region settings
(2) How to check the version of the "HEOS Apps"
Perform the operations below to display the "About" menu from the "Settings" menu of the HEOS app.
→ Step 1 →
Tap the "About".
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Step 2
Check the displayed version.
The display differs depending on the version.