Transpeed 8K618-T
| Transpeed 8K618-T | |
|---|---|
 | |
| Manufacturer | Transpeed? |
| Dimensions | 100mm x 100mm x 22mm |
| Release Date | 2023 |
| Website | unknown |
| Specifications | |
| SoC | H618 @ 1.5 Ghz |
| DRAM | 2GiB/4GiB DDR3L @ 648 MHz (8 * Micron MT41K1G4) |
| eMMC | 16/32/64/128 GiB eMMC 5.1 |
| Power | DC 5V @ 2A |
| Features | |
| Video | HDMI (Type A - full), CVBS |
| Audio | 3.5mm headphone plug, HDMI |
| Network | WiFi (HK2735M), 100Mbps Ethernet (integrated H616 PHY) |
| Storage | µSD, eMMC |
| USB | 2 X USB2.0 Host |
| Headers | UART header pads |
Cheap TV box, an example of various very similar devices, shipped under different names.
Identification
On the back of the device, the following is printed:
Transpeed MODEL: 8K618-T RAM: 4GB DC IN: 5V ROM: 64GB
The PCB has the following silkscreened on it:
Fx-H618-D4-V10 2023-03-21
In android, under Settings->About Tablet, you will find:
- Model Number: 8K618-T
- Android TV OS version: 12
- Android TV OS build: SP1A.211105.004
Sunxi support
Current status
Many features are already supported by the mainline kernel (eMMC, SD card, USB, WiFi), though video, audio and Ethernet (PHY) are missing, for the H616/H618 in general. Just needs the DTB to run on mainline builds since Linux v6.5 (required for the AXP313a PMIC support).
Manual build
You can build things for yourself by following our Manual build howto and by choosing from the configurations available below.
Mainline U-Boot
Use the transpeed-8k618-t_defconfig build target. Available since v2024.04-rc1.
Mainline Linux Kernel
Use the sun50i-h618-transpeed-8k618-t.dtb devicetree binary from a mainline kernel, available since v6.8-rc1. Requires at least v6.5 for the AXP PMIC support.
Tips, Tricks, Caveats
FEL mode
There is a FEL button on the PCB (behind the AV socket), it can be reached by a non-conductive tool like a toothpick through the AV socket. Alternatively, enter FEL mode with the fel-sdboot.sunxi image written to an SD card.
The USB socket next to the SD card is connected to USB controller 0, a non-standard USB A-to-A cable can be used to connect using FEL.
Adding a serial port (voids warranty)
Device disassembly
Use a Plastic tool to move around the lid on the top, to pop open three brackets at the front and the back of the device.
Locating the UART
The UART pins are clearly marked with RX, TX, GND on three easy to solder pins on the PCB.
Pictures
Also known as
Probably very similar, if not identical to other H618 TV boxes, especially those with a display at the front, the two USB sockets on the side, and no SPDIF socket.
With the H618 being designed for TV boxes, there are not many variations to come up with for a cheap design. The AXP313 PMIC used in those boxes (with the H618 SoC) has really little wiggle room for customisation, so all rails need to be enabled all the time, and the voltages are pretty fixed, for practical purposes. There could be variations in the WiFi chip, and in the DRAM chips used, although cost pressure probably leads to DDR3 DRAM chips being used.