Pentagram P5355

Jump to navigation Jump to search
Pentagram P5355
Device front.jpg
Manufacturer Pentagram
Release Date 2013
Website Quadra 9.7
SoC A31 @ 1 Ghz
DRAM 2 GiB DDR3 @ 624 MHz (SK Hynix H5TQ2G83EFR-PBC)
NAND 16 GB (Hynix H27UCG8T2MYR-BC)
LCD 2048×1536 (9.7” 4:3)
Touchscreen 10-finger capacitive (Silead gslX680)
Video HDMI (Type C — mini)
Audio 3.5 mm headphone plug, HDMI, internal speaker, internal microphone
Network WiFi 802.11 b/g/n (Realtek RTL8188EUS)
Storage µSD
USB 1 µUSB 2.0 OTG
Camera 1.92 MPx (1600×1200) front, 1.92 MPx (1600×1200) rear

This page needs to be properly filled according to the New Device Howto and the New Device Page guide.


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

TAB Quadra 9

In Android, under Settings→About Tablet, you will find:

  • Model Number: PENTAGRAM TAB Quadra 9.7
  • Build Number: fiber_pentagram977q9-eng 4.2.2 JDQ39 20130813 test-keys

Sunxi support

Current status

Give a brief overview of the current status of support under sunxi here.


Optional. Add MANUFACTURER DEVICE specific sunxi ROM images here. E.g. a livesuit image or some other linux image which uses linux-sunxi code. Do not put non-sunxi images here, they should live under See also. If no sunxi based images are available, this section can be removed.


Optional. Add MANUFACTURER DEVICE sunxi HW-pack specifics here. When empty, this section can be removed.


Optional. Add MANUFACTURER DEVICE sunxi BSP specifics here. When empty, this section can be removed.

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 MANUFACTURER_DEVICE build target.

Mainline U-Boot

Use the MANUFACTURER_DEVICE build target.

Linux Kernel

Sunxi/Legacy Kernel

Mainline kernel

Tips, Tricks, Caveats

Add MANUFACTURER DEVICE specific tips, tricks, Caveats and nice to have changes here.

FEL mode

The Home 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.


Also known as

See also

Add some nice to have links here. This includes related devices, and external links.

Manufacturer images

Optional. Add non-sunxi images in this section.