Acer B1-760HD Image from Acer Support downloads IS NOT correct firmware!

As the title says,

No wonder I can't get anywhere with this tablet, the support downloads from Acer are wrong?

Build prop shows this ;

ro.build.display.id=Acer_AV0K0_E39_1.017.00_EMEA_GEN2S

ro.product.device=acer_e39

Custom Conf file shows this ;

browser.UserAgent = Mozilla/5.0 (Linux; U; Android 4.4.2; en-us; E39 Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30;
browser.UAProfileURL = http://go.acer.com/?id=17999
mms.UserAgent = Acer E39/Android-MMS/v1.3
mms.UAProfileURL = http://go.acer.com/?id=17999
http_streaming.UserAgent = stagefright/1.2 (Linux;Android @ro.build.version.release )
rtsp_streaming.UserAgent = stagefright/1.2 (Linux;Android @ro.build.version.release )
#http_streaming.UAProfileURL = http://218.249.47.94/Xianghe/MTK_Athens15_UAProfile.xml
#rtsp_streaming.UAProfileURL = http://218.249.47.94/Xianghe/MTK_Athens15_UAProfile.xml
dm.Manufacturer = Acer
dm.Model = E39
bluetooth.HostName = Acer E39
fmtransmitter.RDSValue = Acer
wlan.SSID = Acer E39