If BitTorrent Neo will not open, try these steps:

1. Confirm your Mac is running a supported macOS version.

2. Restart your Mac.

3. Download and install the latest BitTorrent Neo version.

4. Check whether macOS is showing a security or permission prompt.

5. Make sure BitTorrent Neo is in the Applications folder.

If the app still will not open, submit a support ticket with your macOS version, BitTorrent Neo version, and a screenshot of the error.