Inet 86vs

= Identification =

In android, under Settings->About Tablet, you will find:
 * Model Number: MID705
 * Build Number: A13_86VS_M758C1_1304117.20130629

= Sunxi support =

Current status
No patches have been provided yet. Does not currently boot with either a custom image nor Fedora 19 A13 mid image. Investigation ongoing.

Manual build specifics

 * For building u-boot, use the "INet_86VS" target.
 * The .fex file can be found in sunxi-boards as inet_86vs.fex

Everything else is the same as the manual build howto.

= Tips, Tricks, Caveats =

meminfo
dram_clk         = 408 dram_type        = 3 dram_rank_num    = 1 dram_chip_density = 4096 dram_io_width    = 16 dram_bus_width   = 16 dram_cas         = 9 dram_zq          = 0x56b9697b dram_odt_en      = 0 dram_tpr0        = 0x42d899b7 dram_tpr1        = 0xa090 dram_tpr2        = 0x22a00 dram_tpr3        = 0x0 dram_emr1        = 0x4 dram_emr2        = 0x10 dram_emr3        = 0x0

FEL mode
The VOL+ button triggers FEL mode.

Alternatively, there is a pad called u-boot near the wifi. Connecting this to ground also triggers FEL mode. Pads for a UBOOT button are also available on the board.

= Adding a serial port (voids warranty) =

Some pads are available on the board, but they are multiplexed with the SD card. So use a MicroSD Breakout board. The ones from Sparkfun or DX should work with the cover on, but you have to remove the back cover to attach the cubietech one.

Device disassembly
Be careful to first remove the SD Card.

It has screws next to the connectors. The board is on the display part and the bottom cover is removed. Remove the screws and pry the bottom cover.

Make sure the USB port is inserted into the cover first when reassembling.

Locating the UART
UART is marked on the bottom of the PCB (between the PCB and display) and on the top under the tape holding ctp connector. Both connect to the SD slot so you can as well use a SD breakout board. The FEX file does not enable UART.

UART1 pins are used for CSI and connected to a 24pin 0.5mm pitch FFC connector which is used for camera. Probing with a multimeter confirms that the console pins seem to be connected somewhere around the middle of the connector. The pitch is the same as IDE ZIF connector but IDE is 40pin. Also the CSI cable seems much thicker. Some FFC cut&paste together with a ZIF to 3.5" IDE adaptor should give you usable pins for UART.

= Pictures =

=Also known as=

Rev1.0 was marketed as
 * Manta MID701 (Device Disassembly)
 * Polaroid MIDC407

Rev2.0 (documented) was sold as:
 * Manta MID705

= See also =