Les encontré esta actualización a ICS 4.0.4 en SLATEDROID.
Google translate seems to have an issue with the official Ainol website, so, I thought I would persevere and find the latest stock firmware there, it proved to be quite simple actually.
Start with
www.ainol.com
The next to last button on the header is the download area. Click on it.
The latest Tornados "Cyclone" firmware is currently fourth down on the first screen, here is what it looks like:
Note that the arrow is orange, the filename translates to "Ainol NOVO 7 Cyclone 0619" and "firmware driver" there have been 631 downloads, 316 views, filesize is 202.45 mb and the release date is 2012.06.29 which is a typo, the release date is 2012.06.19
This file contains the 0619 firmware and the patch firmware for additional apps.
Click on the green download button and it takes you to :
http://115.com/file/anlwer4c#
You now see at the top that it says the file is "Novo7 Tornados 0619.rar"
Use the "ordinary" download, green button.
Once downloaded, unzip the file. It creates the following :
19/06/2012 02:12 PM 106,288,716 Novo7-Tornados.zip
19/06/2012 02:13 PM 97,997,246 patch.zip
19/06/2012 02:12 PM 360,452 u-boot-aml-ucl.bin
19/06/2012 02:13 PM 3,947,170 uImage_recovery
27/06/2012 05:50 PM 7,066,339 ????????II???II??????.docx
27/06/2012 04:53 PM 26 ????????0619.txt
The last two are Chinese information, although the docx file can be translated somewhat, has images also.
So, now it's quite straight forward and I'll detail the exact steps I used to install.
with no micro SD card installed :
vol- plus power key for 3 or 4 seconds
green messages then android screen followed by recover menu (takes a minute or so, be patient)
select wipe data/factory reset using vol+, scroll to delete all user data, press home button
(message says data wipe complete)
select wipe cache partition
(message says cache wipe complete)
select wipe media partition, scroll to delete all
(message says media wipe complete)
Then, install your fat32 formatted microSD with the above firmware
select apply update from sdcard
choose firmware "Novo7-Tornados.zip" and let the tablet go off on it's adventure (you select using the vol keys and the home button)
on completion, select the reboot option
Following reboot, change the language to English, it is tricky if you do not know what setting tab it is, so find out and then do this :
with no micro SD card installed :
vol- plus power key for 3 or 4 seconds
wait for menu then install that microsd again
select apply update from sdcard
choose firmware "patch.zip" and let the tablet do it's thing again
reboot
That worked for me, of course, as MrsBurnout always says "YRMV" and sometimes problems occur with sdcard compatibility, format, wind direction etc.
I will play with this release, so far I have installed some items from the market and as with any firmware on any tablet, time will tell.
Hope that helps someone.