[Miscellaneous Android Development] Christian Troy:
If you appreciate my work and would like to support me with a small donation you can click on button.

If every happy user of this rom would just donate something I could invest more time in all these Android projects.

Issues and possible workarounds

* Accelerated video playback is supported by MX Player in HW+/HW mode and pretty much every file will play, try both playback method because it depends on the video codec; I noticed that HD videos plays better in HW+ mode while SD (XviD for example) play better in HW mode. For a better audio support (included DTS playback) have a look here.

* HDMI shows a picture but it doesn't fill the TV screen entirely.

* Probably other things...

Features

* USB GPS support (cp210x and pl2303)

* Xbox 360 gamepad support (xpad)

* PS3 USB gamepad support (hid-sony)

* Generic / chinese (Pantherlord / GreenAsia) gamepads support (hid-pl and hid-gaff)

* OpenVPN support (tun)

* Veno congestion control algorithm

* USB audio

* USB bluetooth (It supports only CSR devices, they can be identified typing "lsusb" from an app like "terminal emulator": the supported device will be present with an entry like "Bus 001 Device 002: ID 0a12:0001" ("0a12:0001" is the supported VID:PID). Do not boot with the bluetooth plugged in; plug it once you booted to android.)

Instructions

* You need TWRP to be able to flash this rom. Read the linked thread for instructions.

* Put rom (cm-10.1-$DATE-UNOFFICIAL-spark.zip) and gapps (gapps-jb-$DATE-signed.zip) files inside internal or external sdcard.

* Turn on the tablet in recovery mode as explained in TWRP thread.

* If this is your first install select "Factory reset" from "Wipe" menu.

* Flash rom (cm-10.1-$DATE-UNOFFICIAL-spark.zip), gapps (gapps-jb-$DATE-signed.zip) and, if you're installing this rom on a device that is not the Spark, the required compatibility zip.

* Now select "Reboot".

* Enjoy CyanogenMod 10.1!

Changelog & download links

2013-07-15

* Added USB bluetooth support

* Fixed a typo, try 3G dongles again and report if they're working now

* Updated upstream sources

ROM (md5sum)

Gapps

Compatibility zips

Only devices with a stock SDK 3.2 firmware can be supported.

* Onda V972 (v1) (v3.2 based) 3.2_rc1

* Onda V972 (v2) (v3.2 based) 3.2_rc1

* Onda V973 (v1) (v3.2 based) 3.2_rc1

* Onda V973 (v2) (v3.2 based) 3.2_rc1

* Onda V811 (v3.2 based) 3.2_rc1

* Onda V812 (v1-v4) (v3.2 based) 3.2_rc1

* Onda V812 (v5) (v3.2 based) 3.2_rc1

* Onda V813 (v3.2 based) 3.2_rc1

* Onda V818 mini (v3.2 based) 3.2_rc1

FAQs

* If your devices doesn't have a volume rocker you can install one of these apps to control volume from the notifications: Volume in notification, TrayVolume

* WiFi now can stay enabled with display turned off. Note that if WiFi is enabled the tablet won't enter deep sleep so if you're more interestead in battery life instead of an always on WiFi change policy (on "Advanced" WiFi settings) from "Always" to "Never" and select your preferred WiFi timeout.

* Internal memory is mounted at /storage/sdcard0, external sdcard is mounted at /storage/sdcard1. If you wanna swap them (and make primary your real microsd) just edit "persist.sys.vold.switchexternal=0" to "persist.sys.vold.switchexternal=1" in "/system/build.prop" file

Screenshots

Sources

https://github.com/christiantroy/allwinner_a31