[Q] fujitsu f01f update from a tar.gz topic

Hello all , this is my first tread on XDA forum , brief i have a Fujitsu Arrow F-01F (NTTDocomo) , with android 4.2.2 , no root . docomo has realeased an update to KK 4.4 , but no way to update it 'cause im outside Japan , i have downloaded tha update in a (Tar.gz) form , from spf.fmworld Dot net , i have placed the file on my External sd card , i have booted on recovery ==> update ==> i got a messsage says can't open the file . i will appreciate helping in this .


and thank you .