|Dimensions||8.6mm x 190mm x 130mm|
|Release Date||Dec 2015|
|Website||N/A (There's no device page on the manufacturer's website)|
|SoC||A33 @ 1.34Ghz|
|DRAM||512MiB DDR3 @ 360MHz|
|Power||DC 5V @ 2A, 2200mAh 3.7V Li-Ion battery, Micro USB|
|LCD||800x480 (7" 5:3)|
|Touchscreen||5-finger capacitive (Silead GSL1680)|
|Audio||3.5mm headphone plug, internal speaker|
|Network||WiFi 802.11 b/g/n (ExpressIf ESP8089))|
|USB||1 USB2.0 OTG|
|Camera||30.0MP (640x480) front, 30.0MP (640x480) rear|
On the back of the device, the following is printed:
The PCB has the following silkscreened on it:
In android, under Settings->About Tablet, you will find:
- Model Number: M751S-B
- Build Number: aster_ococci-eng 4.4.2 KVT49L 20151008
It has a Q8-like design, but its buttons are at the same side (left, in the default orientation).
None currently, A33 is not supported yet.
You can build things for yourself by following our Manual build howto and by choosing from the configurations available below.
- For building u-boot, use the q8_a33_tablet_800x480_defconfig target.
Use the sun8i-a33-q8-tablet.dtb device-tree binary.
Customized kernel based on Allwinner official SDK
 includes a customized sdk kernel for m751s along with its config. It requires AOSC OS and its cross-compile toolchain.
Tips, Tricks, Caveats
The Vol+ button triggers FEL mode.
It's disassembly is just like Q8 devices. Look for Format_Q8#Disassembly for reference.
Note: Do not start from the side of the screen, otherwise you may break the touchscreen!
It seems that no UART pads are available.
This pad is claimed to have different SoCs on different websites in China, from RK3288 to A33, and when it's disassembled, the A33 SoC and AXP223 PMIC is covered by stickers.
Note about the accessories
The USB-OTG Cable in the device box is too unstable for data transmission. If possible, use another one to replace it.