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Roland MKS-100 OS v1.04 EPROM Firmware Upgrade KIT

Upgrade your Roland MKS-100 with the latest known OS v1.04—supplied on one freshly-programmed, tested, brand new EPROM chip for reliable, long-term performance.

One brand new EPROM chip programmed with OS version 1.04.
Chip clearly labeled for correct installation into its designated IC socket.
Shipped in ESD-safe packaging with printed installation instructions and ESD handling guidance included.

Important: This listing covers only the firmware upgrade chip. The Roland MKS-100 itself is not included.

Check Your Current Firmware or OS Version

Open the unit and check the label on the EPROM at IC26 to determine the currently installed firmware revision.

About OS Version 1.04 & Compatibility

Version 1.04 is the latest known operating system firmware issued by Roland for the MKS-100.
Not compatible with other Roland models.

Installation Guidance

Observe ESD precautions; chip(s) ship in ESD-safe packaging.
Install chip(s) carefully with correct orientation.
Contact me before purchase for installation help or compatibility questions.

Responsibility & Buyer Research

All information provided here is accurate to the best of my knowledge. Buyers are strongly encouraged to independently verify compatibility and installation requirements for their equipment. EPROM upgrades should ideally be installed by qualified technicians or experienced users. The seller cannot assume responsibility for damage caused by improper installation or insufficient technical expertise. Please contact me before purchasing if you have any doubts—I'm happy to assist!

Quality & Guarantee

Each EPROM chip is freshly programmed, individually tested, and shipped in ESD-safe packaging.
Only new, high-quality components supplied—never recycled or refurbished.

Availability

Made to order; please allow time for meticulous programming, testing, and secure packaging before shipment.

Sales Policy

All Sales Final: EPROM upgrade chips are sold as new and tested. Returns or cancellations cannot be accepted after shipment or installation. Once installed, chips become "used" and cannot be resold as new.
Pre-Sale Support: Please contact me with any questions about compatibility or installation prior to purchase—I am happy to help ensure you receive the correct upgrade.

Purchase with confidence!

Check out my other listings—I have spare parts for samplers, synthesizers, and more!