Cisco WS-2960S-48TS-L does not work after firmware update

[drynkowski1]

Hello.
After purchasing the Cisco WS-2960S-48TS-L decided to do a firmware upgrade using the CISCO NETWORK ASSISTANT. Unfortunately update failed. Currently the switch when you run can not load the system image.
Since up to now I had to deal with the other switches do not really know how to upload the correct image now. The more that you connect the switch through the console acts as to a limited extent.
Please help

[Leo Laohoo]

Your IOS is corrupt. 

You will need to upload the IOS using CLI.  How confident are you with CLI?  

Copy the BIN file into a USB and stick it into the switch.  In ROMmon, issue the command "boot usbflash0:IOS.BIN".  

[drynkowski1]

Thank you Leo Laohoo.
Your suggestion to usbflash0 helpful.
It is true that I was struggling because of usbflash latest iso system also did not want to go, but I recorded version of one lower and went.
By the way, I learned that the USB must be formatted to FAT file system.
Again, thank you for your help.
Darek Rynkowski