Firmware Update — What It Is and Why It Matters
A firmware update is a software upgrade pushed to a dive computer's internal processor to fix bugs, add features, or improve algorithm performance. Updates are delivered via Bluetooth connection to a companion app or through a USB cable to desktop software, depending on the manufacturer.
Shearwater is widely praised for its aggressive firmware update cadence, regularly adding features like new display layouts and algorithm options to existing hardware. Other brands update less frequently. Keeping firmware current ensures you have the latest safety features and bug fixes.
Frequently Asked Questions
Is it safe to update dive computer firmware?
Yes, as long as you follow the manufacturer's instructions. Ensure the battery is fully charged before starting an update, and do not interrupt the process. Updates are tested extensively before release.
Will a firmware update erase my dive logs?
In most cases, no — dive logs are stored in a separate memory area. However, it is good practice to sync your logs to a companion app or computer before updating, just in case.
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