Planet Computers Gemini PDA
Gemini_4Galso sold as X25 · X27 · Gemini · Gemini_4G
Newest ROM build 2 months ago (1 ROM still current). A phone that still gets updates keeps going long after its manufacturer stops.
Hardware
No hardware specs for this device yet.
ROMs · 02
The Planet Computers Gemini PDA (codename Gemini_4G) has 2 tracked custom ROMs on CustomDroid — including Kali NetHunter, Sailfish OS, running up to Android 7. Each listing links to the project's own download and install guide, and was last checked against the projects' catalogues on 21 Sept 2026.
Tick “compare” on two or three builds to see them side by side.
- Kali NetHunterOfficiallast build 27 Jun 2026 · checked 21 Sept 2026
Linux mobile operating systems — not Android; Android apps don't run natively
RSS feed — subscribe to get new Planet Computers Gemini PDA builds in your reader · JSON
Before you flash
Flashing generally means unlocking the bootloader, booting a custom recovery, wiping, then installing the ROM. Exact steps differ per device and ROM, so follow the Install guide for the one you pick, and back up first. Check what can break (banking apps, DRM, carrier features) and how to get back to stock before you start. Why flash a custom ROM · All guides
Timeline
- Sept 2026Sailfish OS, Kali NetHunter first tracked
Dates show when CustomDroid first indexed each ROM for this device, not when support originally launched.
ROM availability and links come from each project. CustomDroid indexes builds, it doesn't mirror them — always download from the official project, verify the file's hash/signature, confirm it matches your exact codename, and back up before flashing.