Soundcraft UI12

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Soundcraft UI12
Device front.jpg
Manufacturer [1]
Dimensions 90mm x 90mm x TODOmm
Release Date Template:May 2015
Website Soundcraft UI12 Product Page
SoC A20 @ ?Ghz
DRAM 512MiB DDR3 @ ?MHz SKHynix H5TQ4G63CFR
Power DC 5V @ ?A, battery n/a (18V to the entire box)
LCD n/a
Touchscreen n/a
Video n/a
Audio on board? on extension board: 8XLR in, 4 XLR out
Network WiFi 802.11 b/g/n (TODO manufacturer device), 10/100Mbps Ethernet ([RTL8201CP])
Storage n/a except for nand (and possibly some unexposed headers?)
USB 3 USB2.0 Host
Camera n/a
Other Analog devices ADSP 21489 KSWZ-4B 4112246-1B.02#1802
Headers UART, JTAG, LCD, VGA, ...

This is a first step. This page needs to be properly filled according to the New Device Howto and the New Device Page guide.

This is a digital mixer. We found out binwalking the firmware update it actually has a sun7i under its cooling fin...


The audio PCB has the following silkscreened on it:

IPS6_Ui12 NSM_2015_MP3

This is not an android device.

Sunxi support

Current status

n/a. We've just got 99% certainty that this is an A20 board. Firmware image suggests it's running a 3.4.106 sun7i kernel. As far as I could find, it has at least ffmpeg and mpv on board without anything mentioned in terms of licensing information whatsoever.


No full image recovered yet. The NAND is too fiddly small to clip on legs and read firmware :-(





Manual build

You can build things for yourself by following our Manual build howto and by choosing from the configurations available below.


Sunxi/Legacy U-Boot

Use the MANUFACTURER_DEVICE build target.

Mainline U-Boot

Use the MANUFACTURER_DEVICE build target.

Linux Kernel

Sunxi/Legacy Kernel


Mainline kernel

Use the FAMILY-CHIP-DEVICE.dtb device-tree binary.

Tips, Tricks, Caveats

Add MANUFACTURER DEVICE specific tips, tricks, Caveats and nice to have changes here.

FEL mode

The SW2 button looks like it would trigger FEL mode. We were warned not to use that in order not to confuse the NAND, at least not until we have more info (u-boot version, linux kernel version, ...) and a proper firmware image to investigate.

Device specific topic

The thing runs a telnetd. No username or password guessed yet. Firmware updates seem to be mostly signed, with no /etc/passwd file to brute force at first sight.


Adding a serial port (voids warranty)


This section explains how to attach a serial port to the device. Make sure it refers to our UART howto. For a development board, you can just mention how to find the header with the pins and include a picture, and you can remove the warranty voiding warning.

Device disassembly

Just unscrew the 8 screw keeping the metal lid on.

Locating the UART

Describe how to find the RX,TX,GND signals here, and mention the UART howto.


Also known as

This thing has a brother, the Soundcraft Ui16, that uses the exact same sunxi hardware.

See also

Add some nice to have links here. This includes related devices, and external links.

Manufacturer images

Optional. Add non-sunxi images in this section.