LTE3302 firmware update failure

MarkoP

I tried to upgrade firmware of my Zyxel LTE3302 modem but it obviously failed. When I switch power on, all the leds (exceptb battery) are blinking very fast. Connecting with web browser to 192.168.1.1 does not work. How to get firmware re-installed?

Zyxel_Support_CPE

Hi MarkoP  , please follow below instructions to recover your device. 
1)You can check cmd window on your PC to see if PC get IP 192.168.123.x and default gateway 192.168.123.254

2)Access http://192.168.123.254 to re-upgrade your firmware again.
Please don't power off device and don't unplug Ethernet cable during firmware upgrading.
You can get LTE3302-M432 firmware 1.00(ABKQ.1)C0 from below download link.
https://www.zyxel.com/support/download_landing/product/lte3302_series_13.shtml?c=gb&l=en&pid=20171011104850&tab=Firmware&pname=LTE3302%20Series