https://cortexusers.instantchow.com/ 2026-09-07T05:13:27+00:00 https://cortexusers.instantchow.com/ https://cortexusers.instantchow.com/_media/wiki:dokuwiki.svg text/html 2026-05-21T02:20:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:binary_research?rev=1779330050&do=diff APKs Attempt to retrieve the APK handset and Cortex Onboard apps. So we can examine them for clues as to how the android device talks to the Hub. Ideas * Open up the Cortex Onboard APK, easy, it’s on the play store. * WiFi ADB to the Handset. text/html 2026-05-25T18:51:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:eaerendil?rev=1779735089&do=diff Eärendil Eärendil is an Open Source Android App that allows control of a Vesper Cortex M1 Hub via it's WiFi Ethernet interface. License: Roadmap v0 * Android App * Pairing direct to M1 Hub or Boat Network * Manual IP address connect to Hub text/html 2026-05-20T17:04:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:fcc_hardware_images?rev=1779296689&do=diff FCC Certification Images H1 and H1P Handsets (Touch Screen Speaker Mic) Go back to General Images Cortex H1 FCC ID images Since the manufacture of the handset went with an off the shelf, already FCC certified device, this listing is simply a generic pictue of the board, no testing. See the Header Section below for those images. text/html 2026-05-21T02:19:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:letter_to_garmin?rev=1779329941&do=diff One idea is to request all the source on the device. Here’s some slopy from Claude. It seems ok. Sample Letter to Garmin Ltd. To: opensource@garmin.com (Garmin’s standard GPL compliance address) and CC support@vespermarine.com. Subject: GPL Source Code Request — Vesper Cortex H1/H1P Handset (FCC ID filing 1898-20) text/html 2026-05-20T16:59:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:previous-garmin-hacks?rev=1779296388&do=diff Isn't Garmin going to hate this? Reprocutions from Hacking (Tinkering) Previous US case law is pretty clear on disasembling and understanding hardware you already own, it's legal is fun and good for your soul. See DMCA Section 1201(f). On the brightside of things, Garmin has historically been largely open with reverse engineering. Here are some examples: text/html 2026-05-21T02:19:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:source?rev=1779329981&do=diff letter to garmin binary research text/html 2026-06-02T17:07:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://cortexusers.instantchow.com/hacking:start?rev=1780420073&do=diff Start Page for Vesper Hacking Preface This project is an independent, community-driven effort to explore, understand, and improve the hardware and software of Garmin Cortex devices for personal use. We do not represent Garmin Ltd. or any of its affiliates, and this project is in no way affiliated with, endorsed by, or sponsored by Garmin. Our goal is to ethically advance our understanding of these devices, improve their functionality for our own use, and openly share our findings, tools, and d…