Nvidia has released Shield software version 9.1 with new features, security updates, and bug fixes. The update is available for all Shield boxes.

Nvidia highlighted two new main features: Auto Low Latency Mode (ALLM) to let Shield automatically switch compatible TVs into 'Game' mode as well as Night listening mode to let you watch movies at night without disturbing your family.

- "SHIELD TV now automatically switches your TV to low latency “game mode” when playing your favorite games. Whether gaming from the cloud with GeForce NOW or playing an Android game locally, your gaming experience will feel more responsive than ever," said Nvidia.

- "Enjoy watching movies or playing games at night without disturbing your family. Night listening mode automatically levels both loud explosions and quiet dialog to deliver a consistent listening experience even if the volume is set low."

 Also read: Review: Nvidia Shield 2019


IMAX Enhanced, other tweaks
The update also adds IMAX Enhanced support for Disney+, letting you stream Marvel movies in the expanded 1.90:1 aspect ratio.

In addition, it adds "AI" upscaling support for 60Hz HDR10 video, improves remote and game controller customization, and lets users who own an entry-level or mid-range TV disable displaying of HDR and Dolby Vision content.

Nvidia said that six additional GeForce Now games can now be enjoyed in 4K resolution or 4K with HDR10. These are: 
Dying Light 2 (4K)
Destiny 2: The Witch Queen (4K HDR10)
Rainbow Six Extraction (4K)
SIFU (4K)
Apex Legens: S13 (4K)
Star Wars: Jedi Fallen Order (4K HDR10)

Nvidia Shield is still running Android 11. The Android security patch has been updated to the June 2022 level.

Shield Experience Upgrade 9.1 – changelog
Enhancements:
Adds support to automatically enable game mode on supported TVs (ALLM)
Adds night listening mode (HDMI audio only)
Adds option specify network workgroup when connecting to SHIELD over local network
Adds option to create your own password when connecting to SHIELD over local network
 Adds AI upscaling support for 60Hz HDR10 video
 Adds option to only wake SHIELD with power button or NETFLIX button
 Adds option to only wake SHIELD with logo button
Adds option to match uncompressed audio with Dolby reference volume levels
Adds option to disable displaying HDR/Dolby Vision content
Adds notification when app uses microphone


Bug Fixes:

Display
Fixes bug where Dolby Vision mode would become re-enabled after reboot

Network
Resolves issue where link speed was not reported when connecting ethernet cable
Resolves issue where “Restart Wi-fi” in Quick Settings was not working properly

Audio
Resolve audio pops heard after hotplug of USB audio devices
Fixes bug where some apps would only play through headphones after “Match content audio resolution” is enabled
Resolves issue where HDMI fixed volume required disable-enable cycle to work properly
Fixes bug where stereo upmix would not become enabled after playing multichannel discrete audio
 Disables comfort noise feature when Dolby Audio Processing is enabled

Storage
Improves file transfer speeds to attached storage
Resolves issues where NAS would not reconnect after SHIELD restart

Accessories
Fixes bug where SHIELD Controller 2017 or SHIELD Remote 2015 would not auto pair after taking upgrade

SHIELD TV app
Fixes bug where SHIELD TV app would not send keyboard entries while streaming GeForce NOW
Resolves SHIELD TV app issue where user could not copy/paste text (passwords, URL, etc)
 
Other
Resolves issue connecting to GeForce NOW servers while NVIDIA Share is active
Improves stream to twitch duration indefinitely
Resolves issue where system would become unresponsive after enabling Dolby Audio Processing from quick menu
Resolves issue where SHIELD would wake up unexpectedly
Improved HDMI-CEC compatibility with other HDMI connected devices
Resolves issue where app switcher (double tap home) would not show most recent screenshot properly
Resolves adb connection issue where host PC would need to be re-authorized after 7 days
Fixes bug where D-pad "up" and "down" would not function after upgrade
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