RCA Voyager III (sofiaboard)
| 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. Status: Uses prebuilt kernel, therefore cannot be packaged | 
| CHANGE_ME CHANGE_ME | |
| Manufacturer | Alco | 
|---|---|
| Name | RCA Voyager III | 
| Codename | sofiaboard | 
| Released | 2017 | 
| Type | tablet | 
| Hardware | |
| Chipset | Intel SoFIA x3-C3200RK | 
| CPU | Intel® Atom™ CPU x3-C3200RK @ 1.10GHz (Quad-Core) | 
| GPU | Mali-450 MP4 | 
| Display | 800x600 IPS LCD | 
| Storage | 16GB | 
| Memory | 1G | 
| Architecture | x86_64 | 
| Software | |
| Original software The software and version the device was shipped with. | Android 6.0.1 | 
| Extended version The most recent supported version from the manufacturer. | Android | 
| Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline. | no | 
| Flashing Whether it is possible to flash the device with  pmbootstrap flasher. | Broken | 
|---|---|
| USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system). | Works | 
| Battery Whether charging and battery level reporting work. | Untested | 
| Screen Whether the display works; ideally with sleep mode and brightness control. | Untested | 
| Touchscreen | Works | 
| Keyboard Whether the built-in physical keyboard works. | Untested | 
| Touchpad Whether the built-in touchpad works. | Untested | 
| Multimedia | |
| 3D Acceleration | Untested | 
| Audio Audio playback, microphone, headset and buttons. | Untested | 
| Camera | Untested | 
| IR TX | Untested | 
| Connectivity | |
| WiFi | Untested | 
| Bluetooth | 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-A Whether the full-sized USB-A port works. | Untested | 
| USB OTG USB On-The-Go or USB-C Role switching. | Untested | 
| HDMI/DP Video and audio output with HDMI or DisplayPort. | Untested | 
| Sensors | |
| Accelerometer Handles automatic screen rotation in many interfaces. | Untested | 
| Magnetometer Sensor to measure the Earth's magnetism | Untested | 
| Ambient Light Measures the light level; used for automatic screen dimming in many interfaces. | Untested | 
| Proximity | Untested | 
| Hall Effect Measures magnetic fields; usually used as a flip cover sensor | Untested | 
| Barometer Sensor to measure air pressure | Untested | 
| Power Sensor Sensor to monitor current, voltage and power. Not fuel gauge! | Untested | 
Contributors
- SnappedAll (put your username here!)
Users owning this device
How to enter flash mode
Installation
Use pmbootstrap to build your own installation image of another x86_64 device, as we have to use a prebuilt kernel on this one.
$ pmbootstrap init
$ pmbootstrap install --sdcard=/dev/sdX
(we use sdcard as internal storage is slow, buggy and dm-verity is acting strangely)
Notes
This x86 tablet has a Mali GPU, which is quite a weird combination. The Lima driver has not yet been tested on x86.
It uses the Simple Firmware Interface for discovering system timers and non-enumerable buses, but other stuff can be found using PCI. SFI has been dropped from mainline, so unless that is merged back the best thing is close-to-mainline on a fork of kernel version 5.10 which was the last kernel that supported it or use second stage bootloader Petitboot to boot newer kernels with devicetree.(See Motorola RAZR i (XT890) (motorola-smi)'s device package).
Considering that regular UEFI is supported in Linux, porting EDK-II might be an interesting option for getting mainline Linux to boot .
Downstream kernel
For working 3D graphics, mainline would be required, but having a port with downstream could be used in the meantime.