Yesterday I recieved an update for my Samsung Galaxy Core II(SM-G355HN). I downloaded the update and tried to install it. At about 94% I received an
error code  in cache/fota/update.zip. I tried to do a hard reset, but I can't get into recovery mode. When the installation fails, my phone will reboot twice, once with just the screen that says
Samsung Galaxy Core II, powered by Android. The second time it shows that as well, but then tries to install the update again, then it fails and reboots again. My phone is in a loop since last night.
I wonder whether someone knows how to fix this, because I can't use my phone.