OpenPilotToolKit (OPTK) Guide

Cleaned translation of the original OPTK walkthrough: installation, SSH key handling, and SSH/FTP connection steps.

Source and downloads

Original translated source: saber422.blogspot.com guide

Release download (from source guide): OpenpilotToolkit.zip

Install OPTK (Windows)

After launch, OPTK scans your local network for comma devices automatically.

Download OpenpilotToolkit from the official GitHub releases page.

Extract the archive and run OpenpilotToolkit.exe.

If prompted, install Microsoft .NET Desktop Runtime 6.0/7.0.

Reopen OPTK after dependencies are installed.

SSH key setup in OPTK

You can use a prebuilt key file by replacing opensshkey in the OPTK folder, then restarting OPTK.

Key file from the source guide: opensshkey.zip

Or generate your own key via the SSH button in OPTK using GitHub login.

- OPTK can auto-generate an SSH key using your GitHub account login.

- Each SSH generation overwrites the existing opensshkey file.

- If you regenerate keys, remove and re-add the key on your comma device under Network -> SSH.

- Do not repeatedly run key generation unless you intentionally want a new key pair.

Once key setup is complete, enable SSH on the comma device and run Scan in OPTK to discover the device.

SSH/FTP from Windows with FileZilla

Dashcam files are located at /data/media/0/realdata/.

Connect your computer and comma device to the same Wi-Fi network.

Create a new site in FileZilla Site Manager.

Protocol: SFTP - SSH File Transfer Protocol.

Host: your device IP, Port: 8022.

Username: root for Comma 2, comma for Comma 3/3X.

Authentication: private key file (opensshkey generated by OPTK).

SSH from Android (JuiceSSH)

Put opensshkey on your Android device storage.

Open JuiceSSH -> Manage Connections -> add new connection.

Type: SSH, Host: comma IP, Port: 8022.

Identity username: root (Comma 2) or comma (Comma 3/3X).

Import private key and connect.

FTP/SCP from Android (AndFTP)

Add a new profile in AndFTP.

Host: comma IP, Type: SCP, Port: 8022.

Username: root (Comma 2) or comma (Comma 3/3X).

Enable passive mode and select your opensshkey file.

In advanced settings, use ED25519 SSH provider when required.

Notes

- The generated key file in the OPTK folder is what you reuse for SSH and FTP clients.

- C2 username is usually root; C3/3X username is comma.

- If connection fails after generating a new key, reimport the latest key on both device and client apps.