hide/unhide protected cell base on value

Hi Guru,

Got some problem here, how can i reverse the code below to unhide the row. or help me incorporate w/in one botton = hide/unhide for the below code. opppsss, before i forget, what the selected range to be hide/unhide is protected since some cell and populated w/ formula?

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i try to insert below code but doesn't work, only the hide rud. also, is it possible to run it once cell was change? im currently using the code w/ botton to execute the code.

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many thanks