General rooting program via giant Chinese search engine Baidu http://shouji.baidu.com/root/home.html. Website is in Chinese. Not FOSS to my knowledge. Rooting methods such as SuperOneClick are also not FOSS: I heard from the author that he would like to publish the code but it needs cleaning up.
Try rebooting the computer. I’ve tried Superonclick on GNU/Linux via Mono and it didn’t work so I assume you are using Windows: rebooting might help with drivers. I only have experience with phones that I can flash a recovery with, either via fastboot or nvflash, though once with SuperOneClick on Windows. You should try and see if fastboot mode is available on your phone; then you can build TWRP recovery for it and flash. Some phones might even support $ adb root (adb is the debug tool in Android SDK, where you will also find fastboot)
General rooting Chinese program Baidu http://shouji.baidu.com/root/home.html Works. first i try to click ont the buttom left, i think that it made a backup of the aplications installed, and then after finish this operations click on the button that shows in screen, after this i dont know what it made but appeared abig button called ROOT, click on that button and it made its job, then my QBEX AVA757 rebooted successfully.
On my Qbex i see an aplication installed like the image on the page . TNKS daithib8 it works on MTK6575 with android 4.0.3.
Just wanted to write that I have pretty similar phone to julioazar. Indeed, quick rooting attempts don’t work. I actually found a thread on xda-developers with another megabytes of ugly binary blobs for rooting, and wanted to try that after scrutiny, but so far didn’t for few weeks.