This page is about the latest A13 version of the Ampe A76 tablet. Note that Ampe released different hardware under the name A76.

Identification

Ampe A76
Manufacturer	Ampe
Dimensions	196mm x 120'mm x 8mm
Release Date	January 2013
Website	Ampe A76 Product Page
Specifications
SoC	A13 @ 1Ghz
DRAM	512MiB DDR3 @ 432MHz
NAND	8GB
Power	DC 5V @ 1.5A, 2600mAh 3.7V Li-Ion battery
Features
LCD	800x480 (7" 5:3)
Touchscreen	5-finger capacitive (Goodix GT818)
Audio	3.5mm headphone plug, internal speaker, internal microphone
Network	WiFi 802.11 b/g/n (Realtek RTL8188ETV)
Storage	µSD
USB	1 USB2.0 OTG
Camera	2.0MP (1600x1200) front
Other	Accelerometer (Freescale MMA7660)
Headers	UART

Ampe manufactured different tablets under the name A76. Older versions use the A13 SoC and more recent versions ship with an A20 or A23 SoC instead of the A13.

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

Ampe
A76

The PCB has the following silkscreened on it:

A7006Q-V1.1
2013-5-21

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

Model Number: A76II
Build Number: C_V3.01-nuclear-anpei7am-r4.0.84-130704

This version of the tablet ships with a Windows Phone-ish interface for Android (tiles on the homescreen).

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) properly supports the device.

Manual build

For building u-boot, use the Ampe_A76 target.
The .fex file can be found in sunxi-boards as ampe_a76.fex

Everything else is the same as the manual build howto.

Mainline U-Boot

For building mainline U-Boot, use the Ampe_A76 target.

Tips, Tricks, Caveats

ADB

The device does not ship with root access enabled: ADB shell runs as unprivileged user. However, the /data/local/tmp trick to gain root access works.

FEL mode

Any button (VOL-, VOL+) triggers FEL mode at boot.

Adding a serial port (voids warranty)

Ampe A76 UART pads

The devices uses UART1 for U-Boot and Linux messages: make sure to properly set console=ttyS1 and spawn getty on ttyS1.

Device disassembly

The back case is rather hard to separate from the front: using a plastic tool is highly recommended! There are up to 14 clips to pop open. The clips are far inside the inner part of the case, so don't hesitate going deep with a plastic tool. It's easier to start on the side with the connectors.