PSR-SX900 Firmware Updater V1.04
Posted: 13 May 2020 12:24PSR-SX900 Firmware Updater V1.04
Scroll down to the bottom of the page for the LINK to the Update.
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https://europe.yamaha.com/en/support/updates/firm_psr-sx900.html
Scroll down to the bottom of the page for the LINK to the Update.
Do a right-click to open this up in a New Tab
https://europe.yamaha.com/en/support/updates/firm_psr-sx900.html