Empire ElectroniX M712

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Empire ElectroniX M712
Device front.png
Manufacturer Empire ElectroniX [1]
Dimensions 193mm x 120mm x 7mm
Release Date September 2012
Website unknown
Specifications
SoC A13 @ 1.2Ghz
DRAM 512MiB DDR3 @ 408MHz
NAND 4GB
Power DC 5V @ 1.5A, 2500mAh 3.7V Li-Ion battery
Features
LCD 7", 800 x 480, 16:9
Touchscreen 5-finger capacitive (KR070PE4T), Controler: GOODIX GT811
Video None
Audio 3.5mm headphone plug, internal speaker, internal microphone
Network WiFi 802.11 b/g/n (REALTEK RTL8188EUS)
Storage µSD (up to 32GB)
USB 1x mini USB2.0 (Host or OTG)
Camera 0.3MP (640x480) front


Contents

Identification

On the back of the device, the following is printed:

Empire ElectroniX
S/N:EMPR20147124GB000087

The PCB has the following silkscreened on it:

XW712-V1.2
2012-8-8
QL20 12.43

In android, under Settings->About Tablet, you will find:

  • Model Number: Compatible-A13-eng- 4.2.2 JDQ39 by Toxicro
  • Build Number:

This is not useful information and may not be the original string of the tablet. The device was identified by searching the internet and finding the manual.


Sunxi support

Current status

Supported: Boot from SD card, Touchscreen, Audio, WiFi, USB, Ethernet over USB-Adapter

Both mainline and sunxi U-Boot work. There is no mainline kernel support but sunxi-3.4 kernel properly supports the device with Debian LXDE root file system.

Not tested so far: accelerometer, camera

Images

HW-Pack

BSP

Manual build

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

U-Boot

Sunxi/Legacy U-Boot

Use the "Empire_electronix_m712" build target.

Mainline U-Boot

Use the "Empire_electronix_m712" build target.

Linux Kernel

Sunxi/Legacy Kernel

Sunxi/Legacy Kernel provides more drivers than mainline. Use the [2] file.

Mainline kernel

Not used.

Rootfs

tested succesfully: non-graphical [[3]] graphical (minimal LXDE) [4] graphical (LXDE, self built) [[5]]


Tips, Tricks, Caveats

Don't forget to have the modules loaded upon boot (not all may be built into the kernel).

FEL mode

Turn device off. Press power button and hold down; after 2-3s push additionally Vol- 4-6 times quickly


Device specific topic

...

Adding a serial port (voids warranty)

DEVICE UART pads

UART howto

Device disassembly

Remove the screw under the SD-card slot cover. Looking at the screen carefully use your finger nails and/or a plastic tool to snap off the backcover. Start at the buttons and open the top and left side first. Then continue all the way around. Remove the backcover completely. There are screws that hold the board, but since there is nothing useful on the back of the board it is usually not necessary to remove them.

Plastic tool howto.

Locating the UART

UART1-Pads are next to the Pins 151 and 152 (below of the SoC). (red circle: RX left, TX right)

Pictures

Also known as

See also

Manufacturer images

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