# LG OLED HDR crash

> LG OLED HDR crash while playing? Often firmware, app or HDMI handshake — checklist before hardware blame.

## In short

An **LG OLED HDR crash** is usually **software/firmware** or HDMI handshake — not classic PSU click-off (**PSU**, Power Supply Unit / power board).

Update webOS + app, try another player, deep color/HDMI mode, Dolby Vision vs HDR10.

## Software checks

Before hardware:

- webOS update
- App/stick firmware
- Other HDMI player
- Deep color off briefly
- Other HDR format

## When hardware

Only with reboot loops/dead set: [turns off alone](/en/blog/lg-oled-schaltet-sich-alleine-aus) / [repair](/en/reparatur). Related: [HDMI no signal](/en/blog/lg-oled-hdmi-kein-signal).

## AmparioWeb

We focus on **PSU/mainboards**. Pure HDR crash: software first. [Support](/en/support); dead set [repair](/en/reparatur).

## FAQ

**Only on 4K HDR?**

Then often handshake/bandwidth/app — not PSU.

**Related to HDMI no signal?**

Yes — [HDMI no signal](/en/blog/lg-oled-hdmi-kein-signal).

**AmparioWeb?**

[Support](/en/support); dead set [repair](/en/reparatur).