Pentagram P5355
| Pentagram P5355 | |
|---|---|
 | |
| Manufacturer | Pentagram |
| Release Date | 2013 |
| Website | Quadra 9.7 |
| Specifications | |
| SoC | A31 @ 1 Ghz |
| DRAM | 2 GiB DDR3 @ 624 MHz (SK Hynix H5TQ2G83EFR-PBC) |
| NAND | 16 GB (Hynix H27UCG8T2MYR-BC) |
| Features | |
| 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.
Identification
On the back of the device, the following is printed:
PENTAGRAM TAB Quadra 9
The PCB has the following silkscreened on it:
M977QG9_MB_V13_130309
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.
Images
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.
HW-Pack
Optional. Add MANUFACTURER DEVICE sunxi HW-pack specifics here. When empty, this section can be removed.
BSP
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.
U-Boot
Mainline U-Boot
Linux 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”.
Sending 1 over UART during device startup results in boot0, then boot1. It is possible to mount nanda and internal storage over USB.
Sending 2 over UART during device startup results in boot0, then boot1, then boot0/FEL. 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
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Manufacturer images
Optional. Add non-sunxi images in this section.