This is a beta firmware based on the original Oppo’s F-0220 fw and new ARM part with NeroDigital support.
Changes are the same as for 1022.vC firmware.
Download: oppo971-F-0220.v4.zip
Known issues:

This firmware may contain some bugs in ID3 tags display.
“BBK” logo will be displayed instead of the “Oppo” logo.
“New style” remote is default. To enable “old” remote, press [...]

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Firmware updates based on OP971-D-1022

OPPO971 v.9
+ Changed ugly file icons
+ Removed UOPs (prohibited user operations)
+ Pan&Scan mode works for all anamorphic DVDs
+ Full width file list browser
+ Changed Audio Setup: Equalizer moved to a new page, added Super bass, Bass boost, Treble boost settings
+ Extended SPDIF setup
+ Buttons “||” jump to previous, next mp3.
+ Saves [...]

We’ll have links to unofficial, third-party modified firmware for Oppo OPDV971H DVD players. Stay tuned!

Download and unzip the firmware
Insert a writable CD-R or CD-RW into the burner
Start Nero Express. Select “Compile a new CD”, click Next. Select “Data CD”, click Next. Select “Create a new data CD?”, and click Next, then Finish.
Drag and drop the file “935.BIN” into the right part of the window.
In the “Edit” menu, select “Properties”.
Go [...]