Lg Soundbar Nb4540 Software Update 'link' File

After restart, repeat the version check:

A: No. The NB4540 does not have built-in Wi-Fi – only Bluetooth and wired connections. USB is the only reliable method.

The tech support forums lit up. People swapped remotes, changed batteries, and even moved their routers, convinced there was interference. But the issue persisted.

Precautions and Troubleshooting