Roland D-550 OS v1.02 EPROM Firmware Upgrade KIT
- OS v1.02 is the last known revision issued by Roland for the D-550
- Included will be 1 new ATMEL EPROM chip to complete the upgrade.
Keep in mind that the D-550 itself is not for sale, only the EPROM chip is.
- This version 1.02 upgrade is serves as a supplemental release, intended to iron out any remaining kinks affecting general stability, bugs and improve performance within the firmware code.
- Before purchasing, check which firmware your D-550 is running: Switch on the power while holding PATCH BANK 6 + PATCH NUMBER 6 and EXIT. The first line displayed should show the current ROM version installed and subsequently enter in to normal play mode.
- Note – It is important to mention that certain D-550 mainboard revisions do not come with DIP28 removable ROM sockets and instead have the existing ROM soldered directly to the mainboard.
- If you happen to have one of these D-550’s, you will need to desolder the existing ROM to complete the upgrade.
- I can provide you with a FREE DIP28 ROM socket if you need.
If requested - A link will be e-mailed to you with the D-550 service manual for your own personal reference. I find this to be quite useful and informative
Protect your investment by purchasing high quality components:
ALL EPROM upgrade chips and components that I provide here are in fact brand new, high grade, recently manufactured and sourced directly from ATMEL. Using new-age flash technology is the best way to ensure that the data integrity of your upgrades last well past our natural lifetime.
Any questions? Send me a message, thanks!
All EPROM upgrades I provide are prepared in an ESD-safe production environment and will be packaged in equally ESD-safe materials.
Purchase with confidence!
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Condition | Brand New (New) Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more |
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Product safety information may be available here.

