Pentagram P5355

= Identification =

On the back of the device, the following is printed: PENTAGRAM TAB Quadra 9

In Android, under Settings→About Tablet, you will find:
 * Model Number: 
 * Build Number: 

= Sunxi support =

Manual build
You can build things for yourself by following our Manual build howto and by choosing from the configurations available below.

Sunxi/Legacy U-Boot
Use the  build target.

Mainline U-Boot
Use the  build target.

Mainline kernel
= Tips, Tricks, Caveats =

FEL mode
The button triggers  FEL mode. It’s possible to run “sunxi-fel version” successfully, but e.g. “sunxi-fel read 0x42400000 0x82d0 boot1.header” fails with “usb_bulk_send ERROR -7: Operation timed out”.

Locating the UART
The UART pads (RX and TX) are on the left of the SoC. The upper pad is tablet’s TX, the lower one is RX. The pads aren’t pretinned. Follow the UART howto.

= Pictures =

= Also known as =


 * Modecom Freetab 9704
 * Onda V972
 * sQuad 9.72

= See also =