Enter Trend micro activation code on www.trendmciro.com/activate | www.trendmicro/activate to download and activate Trend Micro. To activate Trend micro, make sure you already have an activation code that you’ll probably enter on the trendmicro.com/activate site.
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Go to https://mobilesecurity.trendmicro.com/utility/activation/enter_ak. Type the serial number, then click Next. Sign in to your Trend Micro Account. Fill out the required information, then click Next.
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Tap the Mobile Security app.
Tap Buy/Activate.
Tap Use an Activation Code, then type your serial number.