wifi wont turn on// where is wifi chip?

I have an Lg stylo 2 Plus

My phone fell recently and since then the wifi has been dropping. At first i thought it was an application or just my router that was making the problem, But yesterday my phone outright denied connection to wifi, saying "connection not allowed." i watched videos on how to fix it but i need to know where the wifi chip is so i can put some thermal tape on it to establish a connection from to phone to wifi chip.