A failed firmware update can brick your TV. Avoid disaster with this checklist:

The most common reason for updating is to squash bugs. Does your TV:

These are often firmware-related issues that manufacturers patch in later updates.

If your TV turns on normally:

If your TV is stuck/bricked:

Update time: 5–15 minutes. Do not turn off the TV or remove the USB.

If TV is stuck on boot loop (recovery mode):

If TV can boot to menu:

Duration: 5 to 10 minutes. Do not interrupt.

If USB fails and TV is bricked: