Samsung Galaxy Note20 (4G/5G)
c1salso sold as SM-N980F · SM-N980F/DS · SM-N981B · SM-N981B/DS
Released Aug 2020, newest ROM build 4 days ago (2 ROMs still current). A phone that still gets updates keeps going long after its manufacturer stops.
Hardware
- SoC
- Samsung Exynos 990
- CPU
- Exynos M5 & Cortex-A76 & Cortex-A55
- GPU
- ARM Mali-G77 MP11
- Architecture
- arm64
- RAM
- 8 GB
- Storage
- 256 GB
- Screen
- 6.7" · 2400x1080 · Super AMOLED
- Battery
- 4300 mAh
- Network
- 2G GSM · 3G UMTS · 4G LTE · 5G NR
- Released
- Aug 2020
Sensors & features
- A-GPS
- Accelerometer
- Barometer
- Compass
- DP over USB-C
- Dual SIM
- Dual-frequency GNSS
- eSIM
- Fingerprint reader
- BeiDou
- Galileo
- GLONASS
- GPS
- SBAS
- QZSS
- Gyroscope
- Hall effect sensor
- Light sensor
- NFC
- Pedometer
- Proximity sensor
- Qi wireless charging
- Qi reverse wireless charging
- Stereo speakers
- USB OTG
Specs from the LineageOS wiki (CC BY-SA 3.0), postmarketOS wiki (CC BY-SA 4.0).
ROMs · 02
The Samsung Galaxy Note20 (4G/5G) (codename c1s) has 2 tracked custom ROMs on CustomDroid — including LineageOS, LineageOS for microG, running up to Android 17. Each listing links to the project's own download and install guide, and was last checked against the projects' catalogues on 17 Oct 2026.
Samsung's security updates for this model ended in Sept 2025, so a maintained custom ROM is how it still gets Android security patches. endoflife.date · what end-of-life means
Tick “compare” on two or three builds to see them side by side.
- LineageOSOfficial
installs with Samsung download mode
extra steps before flashing recovery
per LineageOS's install guide for this device — follow it, not this summary
Needs a specific stock firmware first — check LineageOS's install guide
last build 13 Oct 2026 · checked 17 Oct 2026 - LineageOS for microGOfficialde-GoogledmicroGlast build 5 Oct 2026 · checked 17 Oct 2026
RSS feed — subscribe to get new Samsung Galaxy Note20 (4G/5G) 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.
This is a Exynos device, so on Windows you'll want the Samsung Android USB driver before your computer will see it in fastboot. Which USB drivers you need.
LineageOS publishes a step-by-step install guide for this device: wiki.lineageos.org/devices/c1s
Timeline
- Sept 2026LineageOS first tracked
- Oct 2026LineageOS for microG 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.