Iconia [ B1-711] , I cannot find any firmware zip file topic

Hello ,
I'm stuck inside a bootloop after rooting my Device , The system.img.gz I applied, wasn't suiting to my firmware version , I have tablet Iconia B1-711
Please help me with the last version of firmware ,,
Waiting the download link ,,
I cannot find any firmware zip file. Can somebody help me With this firmware?