Download Android Jelly Bean 4.1.1 stock firmware for Samsung Galaxy Note II N7100 smartphone from here or from here.
Archive name: GT-N7100 4.1.1 fw
Archive file size: 347 MB
Model: Samsung Galaxy Note II N7100 smartphone
Platform: Mediatek MT6575
Software Version : JRO03C.N7100ZSALIA
Base Band : MAUI.11AMD.W12.22.SP.V17
Product Name : t03gzs
Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.