chuwi j4 chipset :boxchip F13 / E2100
667mhz , 128MB ram (not sure about it )

chuwi j4 firmware download

chuwi j4 0530 firmware
part 1
part 2
part 3

download 3 parts , rename to xxx.part1 - xxx.part3 and get IMG file

update tool

changelog :
1 volume down 3, now the largest volume 28
2 The first upgrade, return to power after a key useless, restart the machine OK.
3 Change the frequency of 156M, intelligent systems can not solve the problem into...

chuwi j4 update tool v1.0.6

chuwi j4 android application working list

angry birds
talking tom
pandas vs ninjas
chinese chess
penguin ii
pianofull
LauncherPro Widgets
Robo Defense
Sphere Mare

Hello,
is this firmware only the Melis part?
If this Img is the Android rom, I would be very thankful for a (useful)
english tutorial.
I google-translate the 2 word.doc in the update tool,
and esp. the 2nd part is so mystery.
I don´t want to break the well working Melis-part,
but Android is pretty useless at the moment.

whatsoever, I uploaded my crappy translation
maybe helpful for someone
http://www.megaupload.com/?d=F441S67C


BTW:
my Antivir promptly found this malware in the update-tool:
'TR/Dropper.Gen' [trojan]
!?!

has malware ? i download this from official forum and upload here , do you try other software?

not necessarily - these scanner always overdo a little.
Should be fine if directly from chuwi.

And I assume this firmware include the android part (+Melis)?