Yamaha AN1x – Version 1.04 Firmware OS Update Eprom Upgrade for An-1X synth


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Yamaha AN1X – OS Upgrade: Version 1.04

This is firmware update 1.04 and is the latest official released operation system by Yamaha. This operation system update/upgrade requires one eprom chip as revealed in the article`s photos and the chip will be labeled to help you locate the correct chip socket. For more info, please check below.

To check your current version:

power up while holding the + – and 0 buttons. Hold them down until you get past the welcome message, and your current version will be displayed


Fixed – Incorrect ‘low voltage’ warning

Fixed – Audio response when modulating the depth, i.e., return, of delay effects.”

Fixed – clickiness from tempo synced delay

…and more…..