Just a few random searches. Renamed it to “Things seen in searches” as well.

m8 doesn’t have beats

No, it’s not supposed to have “beats audio” as that feature is no longer a part of HTC phones. It got Boomsound instead.

how can i know if htc phone is original

Sometimes that can be a little tricky to know. Have a few pointers on that HERE

developer options htc

Settings > About > Software information> More, where you tap Build number 7 times. You have more info on that HERE, including how you disable it again.