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Firmware updateUse nRF Connect.
Use nRF Connect.
It just works.
We don't ship in-browser OTA. Nordic's free nRF Connect for Mobile is the industry-standard tool for nRF52 firmware updates — battle-tested, recoverable, supported on both platforms. Use it.
Why not in-browser?
A failed OTA on a vario can brick it. Native MCUmgr clients handle retry, error recovery and signature validation. A web app over flaky BLE can't match that safely. Until SMP-over-WebBLE has a recovery path — use the native tool.
01
Install nRF Connect Mobile
Free, Nordic-official. iOS App Store + Google Play. Works without an account.
02
Power on your mini BT
Long-press until the LED breathes signal-orange.
03
Open Device Manager tab
Select your mini BT from the scan list. The Device Manager card pops up.
04
Tap Firmware Upgrade
Choose the .bin file you downloaded from flybeeper.com/firmware. Tap Start.
05
Wait 60–90 seconds
Progress bar runs to 100%. The device reboots once. nRF Connect shows "complete".
06
Reopen this configurator
Reconnect to verify the firmware version in the status bar matches.