I thought all of the cellphones used something like this. At one point they were easy to "fix" to where the pink dye could be hidden. I know on my old-skool RAZR I was able to take a hole punch, punch out a new white disc and glue it to the old moisture indicator. Thus hiding the fact that I dropped it in the tub when giving my son a bath. (Never put a phone in your shirt pocket!)
The mfgs got smarter and now they have red plus signs on a field of white, and are more like a piece of tape.
I recall reading a thread here on AF where someone had an issue with being denied warranty work because the indicator (allegedly) gave a false indication of moisture. The belief was that it was due to humidity but the user got nowhere with Verizon.
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