i love this app!!  i looked for months watching youtube videos google searches trying to get into the hidden menu on my samsung gallaxy note 8 with xfinity mobile and nothing worked no codes,nothing then i found your app 4g lte ,dont be fooled by the one's named close to this  one,look for the gold 4 g symbol now i have this app on my phone"s tablet"s and recommened it to all my friends ,thank you for the great work