Firmware upgrade encountered an issue S3, what can I do?

[AC Question]

firmware upgrade encountered an issue S3

My phone S3(GT-i9300) went got hanged yesterday and got an error failed to mount.
I tried to upgrade the phone with kies. It downloads the software but while installing it failed at 19 %. i did again next time did not progress from 0%. I kept it whole like that whole night but still at 0%. Please help

 

[the tall guy]

Re: firmware upgrade encountered an issue S3

Hi, have you tried updating the software without Kies? By going into settings, about phone, software update?