Samsung Galaxy S21 FE 5G (samsung-r9q2)
Appearance
| This device has been tested with postmarketOS, but its device package has not yet been added to the postmarketOS repositories. This means that it cannot be selected in pmbootstrap. |
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Samsung Galaxy S21 FE booting a close to mainline kernel | |
| Manufacturer | Samsung |
|---|---|
| Name | Galaxy S21 FE 5G |
| Codename | samsung-r9q2 |
| Model | G990B2 |
| Released | 2022 |
| Type | handset |
| Hardware | |
| Chipset | Qualcomm Snapdragon 888 (SM8350) |
| CPU |
1x 2.84GHz Kryo 680 Prime (X1-based) 3x 2.42GHz Kryo 680 Gold (A78-based) 4x1.8GHz Kryo 680 Silver (A55-based) |
| GPU | Adreno 660 |
| Display | 6.4", 1080 x 2340 pixels, 19.5:9, 120hz, touchscreen, Dynamic AMOLED |
| Storage | 128GB/256GB |
| Memory | 6/8GB |
| Architecture | aarch64 |
| Software | |
Original software The software and version the device was shipped with. |
Android 12 |
Extended version The most recent supported version from the manufacturer. |
Android 16 |
| postmarketOS | |
| Category | testing |
Pre-built images Whether pre-built images are available from the postmarketOS Installation page. |
no |
Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline. |
yes |
pmOS kernel The kernel version that runs on the device's port. |
6.7.0-rc3 |
Flashing Whether it is possible to flash the device with pmbootstrap flasher. |
Works
|
|---|---|
USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system). |
Works
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Internal storage eMMC, SD cards, UFS... |
Works
|
Battery Whether charging and battery level reporting work. |
Untested
|
Screen Whether the display works; ideally with sleep mode and brightness control. |
Works
|
Touchscreen |
Broken
|
| Multimedia | |
3D Acceleration |
Works
|
Audio Audio playback, microphone, headset and buttons. |
Untested
|
Camera |
Untested
|
Camera Flash |
Untested
|
| Connectivity | |
WiFi |
Works
|
Bluetooth |
Broken
|
Ethernet |
Untested
|
GPS |
Untested
|
NFC Near Field Communication |
Untested
|
| Modem | |
Calls |
Untested
|
SMS |
Untested
|
Mobile data |
Untested
|
| Miscellaneous | |
FDE Full disk encryption and unlocking with unl0kr. |
Untested
|
USB OTG USB On-The-Go or USB-C Role switching. |
Broken
|
Fingerprint Fingerprint reader. |
Untested
|
| Sensors | |
Accelerometer Handles automatic screen rotation in many interfaces. |
Untested
|
Proximity |
Untested
|
Haptics |
Untested
|
Barometer Sensor to measure air pressure |
Untested
|
Contributors
Users owning this device
- Piecuu (Notes: I don't like it)
How to enter flash mode
First, turn off the device and then:
- Download Mode: Hold the and buttons and connect the device to a computer with a USB cable.
- Recovery Mode: Hold the and buttons while the device is connected to a computer with a USB cable.
Installation
Port not upstreamed yet.
uniLoader
This device has trouble booting mainline Linux because Samsung uses device tree fragments. Thus, this port uses a secondary bootloader called uniLoader (port for r9q2 is not yet in tree) Standard bootloaders are not supported. Only uniLoader will work here.