A33 Q7 V1.0

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A33 Q7 V1.0
MID756 A33.jpg
Manufacturer Unidentified manufacturer "ET"
Dimensions 182mm x 121mm x 7mm
Release Date 19/09/2016
Website Missing product page.
Specifications
SoC A33 @ ?.?Ghz
DRAM 512Mb [email protected] 480MHz (2x SPHB 256X8DDR3)
NAND 16GB
Power DC 5V @ 3A, 3000mAh 3.7V Li-Ion battery
Features
LCD 1280x768 (7" 16:9) MPI DSI Interface
Touchscreen 5-finger capacitive (TCM TC1680)
Audio 3.5mm headphone plug, internal speaker, internal microphone
Network WiFi 802.11 b/g/n and Bluetooth (RTL8703BS),
Storage µSD
USB 1 USB2.0 OTG
Camera 0.3 MP (640x480) front, 0.3 MP (640x480) rear
Other Accelerometer (sc7660)

A Q8 style cheap tablet, but with an A33 SoC.


Contents

Identification

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

The PCB has the following written on it:
GPT
A33_Q7_V1.0
20016-09-19
1.91.001.0181

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

  • Model Number: Q88H
  • Build Number: astar_y3-eng 4.4.2 KVT49L 20161110 test-keys

Sunxi support

Current status

Mainline U-boot OK from SD but not support DSI LCD.

Mainline Kernel OK from SD but not support DSI LCD.

Images

Manual build

  • For building u-boot, use the q8_a33_tablet_1024x600_defconfig target.

Everything else is the same as the manual build howto.

Mainline U-Boot

Use 2016.11 with default A33 1024x600.

q8_a33_tablet_1024x600_defconfig file

Mainline kernel

Use the sun8i-a33-et-q8.dts device-tree file for the mainline kernel. With USB host mode only work with every type of cables.

Tips, Tricks, Caveats

FEL mode

The Volume+ button triggers FEL mode.

Retrieving script.bin

Unlike, other allwinner devices,Script.bin is not present in the vfat partition(nanda) as file.

Instead, It is located 0x43000000, it's size is 0x00020000. script.bin can be extracted from /dev/mem using mmap() or sunxi-tools firmware_extractor.

Adding a serial port (voids warranty)

There are no UART pads available on this device. Instead, UART0 is multiplexed with the microSD adapter. Please refer to the MicroSD Breakout adapter for more information..

Device disassembly

See the Q8 tablet format disassembly page.

Pictures

See also

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