Samsung will assess the traded in phone to ensure it meets their criteria which can involve looking at the water indicators.
All you can do is send it in and await the assessment @PSmith_UK
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
You can check if this will pass the liquid check. Check this guide for more info on this https://www.samsung.com/us/support/troubleshooting/TSG01001077/
If the indicator shows liquid ingress, you can always trade-in under the 'Any broken phone' option. Just head to 'Other' in the trade-in options.
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