how-to

Posted on by Jean-Luc Aufranc (CNXSoft) - 14 Comments on Updated Android 4.4 Beta and Ubuntu Images for pcDuino8 / A80 OptimusBoard Boards Released

Updated Android 4.4 Beta and Ubuntu Images for pcDuino8 / A80 OptimusBoard Boards Released

pcDuino8 and A80 OptimusBoard are the only two Allwinner A80 development boards currently “somewhat” available, and albeit the PCB color is different, every else is basically identical, and pcDuino8 firmware should probably run on A80 OptimusBoard and vice versa. If you own any of these boards, you may interested in two images, one with Android 4.4 (beta), and one with Lubuntu, recently released by pcDuino / Linksprite. Android 4.4 (beta) 2014-10-08 – sun9iw1p1_android_optimus.img to be flashed with PhoenixCard (Windows) or Livesuit (Linux) Lubuntu 14.04? 2014-10-08 is comprised of two files: Kernel – pcduino8_kernel_livesuit_20141008.img to be flashed with PhoenixCard or Livesuit first. See instructions to use Livesuit with A80 OptimusBoard. Rootfs – pcduino8_ubuntu_20141008.rar. First extract the rar files to the root of an SD card or USB flash drive. There should be two files: pcduino8_ubuntu_20141008.img and update.sh. Now connect the mass storage device to pcDuino3 / A80 Optimusboard, and reboot the […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Camera Not Working on Your Smartphone? No problem, Massage It!

Camera Not Working on Your Smartphone? No problem, Massage It!

I bought ThL W200 last year as my main (and only) phone, and my review was rather positive, because after testing the phone for a week or so I did not encounter some of the issues. After a short while I found GPS was not working very reliably, so I had to find instructions to fix GPS on Mediatek phones, then the first battery died after about 8 months, maybe that’s normal for my usage, but I was expecting it to last longer. Finally, after a while both front and rear cameras started to have issues such as green screen, color lines, or simply refusing to work with the message: “can’t connect to camera”. In all of this the good news (for me) was I was not alone, and I saw some instructions saying, you had to terminate the camera app, clear all data, and restart the phones. It seemed […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on How to Upgrade Allwinner A80 OptimusBoard Firmware

How to Upgrade Allwinner A80 OptimusBoard Firmware

After informing Allwinner I had some rather slow write speed (3MB/s) to the NTFS partition of my USB drive on my A80 OptimusBoard, they kindly provided a new compressed Android firmware image (sun9iw1p1_android_optimus_v1.2_20140930.img.7z) with some NTFS optimizations that can be downloaded from baidu (password: x2tz), mega.co.nz or simos.info (please only use this link, if the other two do not work as it’s a private website and monthly bandwidth may be limited). I vaguely remember tools like LiveSuit (Linux) or PhoenixSuite (Windows), and I ended up on sunxi-linux Livesuit wiki as I’m running Ubuntu 14.04 on my PC, but you should be able to flash the firmware with PhoenixSuite if you run Windows. The instructions below can also be used for other Allwinner based devices. First you need to install LiveSuit, and build Allwinner USB drivers as follows:

In order to use LiveSuit as a normal user, you also have […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 19 Comments on Test Your 4K Device True Resolution With a 4K UHD / 2160p Video Test Pattern

Test Your 4K Device True Resolution With a 4K UHD / 2160p Video Test Pattern

4K_Test_Image_Crop

Now many products are sold on the market advertising 4K video output, but how to test and check if it just a lie with only part of the system support 4K (e.g. physical video output), but the rest of the system makes you lose quality? When I worked on DVD players, we had some special DVDs with video pattern allowing us to test different video quality. You can read about different video test patterns in “AVSHD 709 DVD document“. There are also some expensive equipments such as DVDO AVLab TPG – 4K Test Pattern Generator that generate test patterns to calibrate video equipments, but if all we want to do is to check the resolution has not been tempered with there must be a cheaper and easier way. After having a discussion about this issue on Google+,  Dan Car decided to create a 2160p (3840×2160) test pattern image with some […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Getting Started with WRTnode OpenWRT Development Board

Getting Started with WRTnode OpenWRT Development Board

Seeed Studio sent me two nice little boards that can be used for IoT development: WRTNode and LinkIt ONE. Today, I’ll show pictures of WRTNode and accessories, and go through the “starting guide“, and will test LinkIt ONE board a few days later. WRTnode Unboxing I’ve received WRTnode by Fedex, and the board is stored in a plastic box. Inside the box, you’ll find the board, a “special” USB used to power the board and as an OTG adapter, a piece of paper with useful links (Wiki), and some WRTnode stickers. Any micro USB to USB cable can be used to power the board, but this cable is useless to connect USB devices such as flash drives, webcams (OpenCV is supported), Bluetooth dongles, and so on. You could even connect a USB hub to connect multiple USB devices as shown below. I’ve also taken a picture of both sides of […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 16 Comments on Creating and Flashing an Android Image from Rockchip RK3288 SDK

Creating and Flashing an Android Image from Rockchip RK3288 SDK

Following up on my post explaining how to build Android for RK3288 TV box, I’ve generated a firmware image, and flashed it to Tronsmart Orion R28 Meta TV box to see if it could boot properly. There’s basically no information in the Andoird SDK explaining how to do basic things like building from source, and generating and flashing the resulting image, so I’d like to thanks Linuxium, Droidmote and Naobsd for their various tips. Since I’ve built everything from source, I’m using a Linux machine, but you should be able to create and flash the Android image in Windows using tools in RKTools/windows folder. First let’s copy the required, and freshly built, files to create the firmware:

We’ll also need to edit package-file follows (I only had to change the bootloader field):

And now create the firmware file:

The firmware file update.img can be flashed with upgrade_tool […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 16 Comments on How to Build Android 4.4 for Rockchip RK3288 Devices (Tronsmart Orion R28)

How to Build Android 4.4 for Rockchip RK3288 Devices (Tronsmart Orion R28)

After blowing up my ATX power supply, and learning such things as “FULL” power supplies do exists, I finally managed to build Android for Tronsmart Orion R28 using the provided SDK. I haven’t tried to load it on the device yet, but the build could complete successfully after following the steps below in Ubuntu 14.04. The SDK is probably not specific to one device, so it might just also work on other RK3288 TV boxes and tablets. First download Android 4.4 SDK for RK3288, or use the one in the micro SD card provided with the Beta version of R28 Pro and Meta. Install some dependencies:

Extract the SDK:

And build the kernel first: Enter the kernel directory:

Change arch/arm/boot/dts/Makefile to use RK3288 device tree file instead of an RK3188 (may not be needed, but the build failed for me without that change…):

It’s also quite […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 20 Comments on Rockchip RK3288 Android 4.4.2 SDK and Schematics Released for Firefly Board

Rockchip RK3288 Android 4.4.2 SDK and Schematics Released for Firefly Board

Firefly-RK3288 development board was first announced in July. I still don’t have news about availability nor pricing, but the T-Firefly website launched yesterday. They seem do have a nice Wiki, but unfortunately everything is currently in Chinese, except when you go to the download page. You’ll find firmware upgrade_tool for Linux and Windows, the USB drivers for rooting and firmware update, firmware images (Android 4.4.2, Ubuntu 14.04, and dual boot), the board schematics (PDF), and Android KitKat 4.4.2 SDK with U-Boot, Linux, and Android source code, some documentation, XBMC apk (no source) with H.265 hardware decode support for MP4, MOV and MKV container formats. The SDK is available on Bitbucket. I planned to test it, but unfortunately my network connection is very slow (and unstable) to this server, and I failed to retrieve it with git clone. The company also posted the build instructions in Chinese in their website, but […]

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