Datasheet

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can find here. The sniffer doesn't require a SoftDevice image, and doesn't use the fail-safe bootloader -- which is

why changing is a one way and risky operation if you don't have a supported SWD debugger.

Adafruit_nF51822_Flasher

We also have an internal python tool available that sits one level higher than AdaLink (referenced above), and makes

it easier to flash specific versions of the official firmware to a Bluefruit LE module. For details, see the

Adafruit_nRF51822_Flasher repo.

Can I access BETA firmware releases?

The latest versions of the Bluefruit LE Connect applications for iOS and Android allow you to optionally update your

Bluefruit LE modules with pre-release or BETA firmware.

This functionality is primarilly provided as a debug and testing mechanism for support issues in the forum, and

should only be used when trying to identify and resolve specific issues with your modules!

Enabling BETA Releases on iOS

Make sure you have at least version 1.7.1 of Bluefruit LE Connect

Go to the Settings page

Scroll to the bottom of the Settings page until you find Bluefruit LE

Click on the Bluefruit LE icon and enable the Show beta releases switch

You should be able to see any BETA releases available in the firmware repo now when you use Bluefruit LE

Connect

Enabling BETA Releases on Android

Make sure you have the latest version of Bluefruit LE Connect

Open the Bluefruit LE Connect application

Click the "..." icon in the top-right corner of the app's home screen

Select Settings

Scroll down to the Software Updates section and enable Show beta releases

You should be able to see any BETA releases available in the firmware repo now when you use Bluefruit LE

Connect