This article describes how to perform a manual firmware update for Olympus Digital Voice Recorders (DVR).
| Model | Compatible | Notes |
| DS-9500 | YES | Battery 50% or above |
| DS-9000 | YES | Battery 50% or above |
| DS-2600 | YES | Battery 50% or above. Use bin file for the DS-9000. |
| DS-7000 | YES | From firmware v2.00 |
| DS-3500 | YES | From firmware v2.00 |