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Why won’t my background picture upload on my 4iE?

1 min read · Updated Jun 2026
4iE Smart WiFi Thermostat

Having a hard time uploading a custom background? We hope this post will help!

Follow along with this video to see how to set a custom background on your 4iE thermostat:

Subscribe to our YouTube channel here.

If you are having difficulty uploading a background picture on your 4iE Smart Wi-Fi thermostat, make sure the picture file is smaller than 2mb.

A Warmup 4iE thermostat with custom mountain background.Please refer to the installation manual or programming manual for further information about your 4iE Smart Wi-Fi thermostat. If you still have questions contact us.

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