Yamaha SU700 Version 101/103 Firmware OS Upgrade for SU-700 Sampler Drummachine


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Yamaha SU-700 firmware OS upgrade 103/101 – Final Revision

This is firmware revision 103 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.

You can check current version by holding [SYSTEM] and [SONG], while you power the device.


The OS 103 upgrade provides bug fixes related to midi communication and system code issues.


  • Fully verified before shipping and professionally packaged in anti-static material.
  • The Yamaha SU-700 on the picture is not for sale 🙂
  • The IC socket is located at IC 11