Wltfsm-146gn: Firmware Update

WLTFSM-146GN

The is an LTE outdoor customer premises equipment (CPE) unit, and a critical firmware update was recently documented by the WLT Product Security Incident Response Team (PSIRT) on April 13, 2026 . This update is designed to address security and performance for field units. Key Update Features

Manual

: If an automatic update is not available, download the correct .bin or .img file from the official support portal and upload it through the "Choose File" button. wltfsm-146gn firmware update

Cause

: Incorrect pin sequencing or baud rate mismatch. Solution : Verify BOOT pin is pulled high and try 57600 or 115200 baud. Add a 10k pull-up resistor. WLTFSM-146GN The is an LTE outdoor customer premises

Local Update:

If you have downloaded the .bin or .zip file manually, click Browse , select the file, and click Upgrade . Frequently Asked Questions Check Version: Look under System

Cause

: Corrupted download or faulty serial cable. Solution : Re-download the firmware, compute SHA256, and replace the USB-to-TTL converter.

Frequently Asked Questions

Check Version:

Look under System Information , Status , or About to find the current firmware string. 2. Download the Correct Firmware