It's impossible to upgrade firmware for USG110 V4.10
Since years I try to update the firmware for an old USG110 but it never worked.
- I made a hardware reset (reset button).
- I have FW1: V4.10(AAPH.0) 2014-05-08 FW2: N/A
- I downloaded FW from ftp://ftp.zyxel.com/USG110/firmware/: USG110_4.10(AAPH.1)C0, USG110_4.10(AAPH.2)C0 and USG110_4.11(AAPH.2)C0
When I try to upgrade the firmware by webpanel after the upload the USG try to boot and than it stucks. The LED is always blinking. Only reconnecting the power helps.
When I upload the FW bin with FTP the USG reboots but I still don't have the new firmware. Instead I have in log and on frontpage the message 'Previous firmware update failed!!'
It doesn't matter which of the above FW versions I try.
After 6 years we really need to update! What need I to do?