Troubleshooting would involve issues like "Device not found," which could be due to drivers, or "Flash failed," maybe due to incorrect firmware version.
ps2fpkg --version Output: ps2fpkg v07 by ExampleCorp . Step 4.1: Create a Firmware Package To generate a new .FPKG file: ps2fpkg v07
For backup, using a command like ps2fpkg -b to save the current firmware to a file. or "Flash failed