The iNet 3W tablet comes with a WCDMA modem and a SIM card port.

Identification

INet 3W
Manufacturer	iNet Tek
Dimensions	243mm x 187mm x 10mm
Release Date	October 2013
Specifications
SoC	A10 @ 1Ghz
DRAM	1GiB @ 408MHz
NAND	8GB
Power	DC 5V @ 2A, 5000mAh 3.7V Li-Ion battery
Features
LCD	1024x768 (9.7" 4:3)
Touchscreen	10-finger capacitive (Focaltech FT5406EE8)
Video	HDMI (Type C - mini)
Audio	3.5mm headphone plug, HDMI, internal speaker, internal microphone
Network	WiFi 802.11 b/g/n (iNet i10)
Storage	µSD
USB	1 USB2.0 Host, 1 USB2.0 OTG
Camera	0.3MP (640x480) front (Galaxycore GC0308), 2MP 1600x1200) rear (Galaxy Core GT2005)
Other	Accelerometer (Bosch BMA250), Bluetooth (Broadcom BCM40183), WCDMA modem (HTF HWM630), SIM card port
Headers	UART

The PCB has the following silkscreened on it:

INET-3W-REV03
Zng-gc 2013-03-26

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

Model Number: M9701TW
Build Number: 03W1-P1-H2-H02-CY40.20121230

Sunxi support

Current status

The device is supported and maintained in mainline U-Boot. There is no mainstream kernel support at this point. Linux (sunxi-3.4 branch) boots on the device, but most features are untested.

Manual build

For building U-Boot, use the iNet_3W target.
The .fex file can be found in sunxi-boards as inet_3w.fex

Everything else is the same as the manual build howto.

Mainline U-Boot

For building mainline U-Boot, use the iNet_3W target.

Tips, Tricks, Caveats

FEL mode

Sending '2' over UART at boot triggers FEL mode from boot1.

USB storage mode

Sending '1' over UART at boot triggers an USB storage mode that exposes the nanda partition as well as the Android external storage.

Reset button

The reset button (on the PCB) reboots the device.

Adding a serial port (voids warranty)

iNet 3W UART pads

Device disassembly

In order to open the device, there are two Phillips screws to remove from the side with the connectors. The pins from the white part are easy to pop but it is advised to use a a plastic tool, starting from the side with the connectors. The front panel is very fragile and pressuring the screen to pop open the pins can easily end up in breaking the touch screen panel.

Locating the UART

The UART pads are exposed in a very visible way on the PCB, close to the touchscreen connector. The pads are clearly labeled on the PCB: GND, Rx, Tx. Connectors can easily be soldered according to the UART howto.