Google Nexus 9 (Wi-Fi)
flounderother versions of this model: Google Nexus 9 (LTE) flounder_ltematch the codename on your phone before flashing: builds aren't interchangeable
Codename shared with another phone. flounder is also the codename of the HTC Nexus 9. Codenames are only unique per manufacturer, so before flashing, check that a build names the Google Nexus 9 (Wi-Fi), not just flounder.
Released Nov 2014, newest ROM build 2 months ago (1 ROM still current). A phone that still gets updates keeps going long after its manufacturer stops.
Want to go back to stock? Google's official factory images let you reinstall stock Android on the Google Nexus 9 (Wi-Fi). See restoring stock firmware before you need it.
Hardware
- SoC
- NVIDIA Tegra K1 (T124)
- CPU
- Denver
- GPU
- NVIDIA Kepler DX1 192-core
- Architecture
- arm64
- RAM
- 2 GB
- Storage
- 16/32 GB
- Screen
- 8.9" · 2048x1536 · IPS LCD
- Battery
- 6700 mAh
- Released
- Nov 2014
Sensors & features
- 3.5mm jack
- Accelerometer
- GPS
- Gyroscope
- Hall effect sensor
- Light sensor
Specs from the LineageOS wiki (CC BY-SA 3.0).
ROMs · 02
The Google Nexus 9 (Wi-Fi) (codename flounder) has 2 tracked custom ROMs on CustomDroid — including LineageOS, Kali NetHunter, 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.
- LineageOSOfficial
installs with fastboot
per LineageOS's install guide for this device — follow it, not this summary
checked 21 Sept 2026 - Kali NetHunterOfficiallast build 27 Jun 2026 · checked 21 Sept 2026
RSS feed — subscribe to get new Google Nexus 9 (Wi-Fi) 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
Custom recovery for this device: TWRP. Flash the one your chosen ROM's guide asks for — common recovery errors.
LineageOS publishes a step-by-step install guide for this device: wiki.lineageos.org/devices/flounder
Timeline
- Sept 2026LineageOS, 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.