GoClever Tab A73

= Different motherboard versions =

There were 3 hardware versions (HwvX) released by GoClever. They have a different PCB, camera or g-sensor:

GCTA731207XXXX is made with the parts that were in stock - there are some components from HWv2. and some from HWv3.

= Identification =

In android, under Settings->About Tablet, you will find:
 * Model Number: GOCLEVER TAB A73
 * Build Number: crane_evb-eng 4.0.3 IML74K 20120504 test-keys

= Sunxi support =

Current status
Unsupported. No patches were ever submitted.

Manual build

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

Everything else is the same as the manual build howto.

= Tips, Tricks, Caveats =

FEL mode
The button triggers  FEL mode.

Touchscreen
In most situations, you will need to disable multitouch on the FT5X touchscreen driver (for instance, by commenting out CONFIG_FT5X0X_MULTITOUCH in drivers/input/touchscreen/ft5x_ts.h).

The kernel for HWv2 has a working driver.

meminfo
dram_clk = 384 dram_type = 3 dram_rank_num = 1 dram_chip_density = 2048 dram_io_width = 16 dram_bus_width = 32 dram_cas = 6 dram_zq = 0x7c dram_odt_en = 0 dram_tpr0 = 0x30926692 dram_tpr1 = 0x1090 dram_tpr2 = 0x1a0c8 dram_tpr3 = 0x0 dram_emr1 = 0x4 dram_emr2 = 0x0 dram_emr3 = 0x0

This was not turned into a u-boot patch yet.

FEX

 * FEX for GCA731201xxxx.
 * FEX for GCA73 1111xxxx and A721.

= Adding a serial port (voids warranty) =



Device disassembly
Remove the 4 screws. Now gently push your Plastic tool between the plastic outer edge and the metal back cover. Try to go around the whole board until you hear some clips pop, and do this until all clips have released. Be careful when opening the device, as the Wifi antenna is taped to the back cover.

Locating the UART
= Pictures =

V3
= Also known as =


 * Texet TM-7025 (1:1 clone of HWv1)
 * Vedia X7 (1:1 clone of HWv1)
 * Bmorn V11 (1:1 clone of HWv2)
 * Eken T02 (clone of HWv2/HWv3)
 * Saycool A720

= See also =


 * Polish forum post about increasing RAM.
 * All about GOCLEVER A73 (PL) - for example HW versions, cameras and g-sensors
 * ROMs and MODs for A73 (PL)