Hi, Try this link [URL]   
I have two PC3448P switches.  One I upgraded the bios and firmware without issue.  On the other something must have been corrupted during the update process - the switch is stuck in a continuous reboot process.  The documentation included with the latest firmware indicates:  If you are trying upgrade from 1.0.1.13 or below, please make sure software version 2.0.0.34 is downloaded to the PowerConnect 34XX series, along with new boot code version 1.0.1.01. New firmware and new boot code must upgrade at the same time. Failure to download the new boot code results in the system rebooting continuously. This will require an XMODEM download of the previous version of software (PowerConnect_34XX-10113.ros) using XMODEM and the Startup Menu to recover. I need to obtain a copy of the "PowerConnect_34XX-10113.ros" firmware file to try to restore this switch to a working state, but I cannot fid it anywhere. Can you point me to a download of this file?   
Powerconnect 3448P continuous reboot