Help Debug not working??

[SavageRobot]

Very strange, I connected my phone to PC to transfer something and noticed I didn't have the debug badge at the top. Went into Dev options and the debugging is checked, I unplugged to make sure, definitely checked. Plugged it back in and ran adb devices in cmd and say "finding list of devices" then blank and back to sdk dir. Tried adb logcat and it just sits there "-waiting for device-". Any idea's what's going on?
-Edit-
Nevermind, realised for some reason it defaulted to just charge instead of MTP.
But now I have changed it and put adb devices and got "LGH815c76e10b5 unauthorized" what's that about? Still doesn't say debugging in notification but debugging is set in dev options.

 

[scary alien]

You should get an RSA authorization prompt when you connect via adb...sounds like it's confused and/or you need to re-authorize.

Try doing the Settings -> Developer options -> Revoke USB debugging authorizations and then disconnect / reconnect and try the adb devices again.

You should get prompted to allow / disallow the RSA fingerprint of the device that's trying to connect.

Hopefully that'll fix you up .

 

[SavageRobot]

Thanks but something definitely isn't right here. I'll attach screen of dev screen. Can't see revoke option but I've tried unticking debug and turned off dev options and back on
When plugging into computer all it does is that annoying MM thing where it asks you if you want to let pc access to phone EVERY TIME! Why ask, it's not like someone snuck the usb in without me noticing lol

 

[scary alien]

Are you running a custom ROM?

(things look a bit non-stock...)

 

[SavageRobot]

Ha yeah Genisys for G4. I have seen in there that there are problems with
Genisys Rom 3.4 Settings Security, Unknown Sources, Any System Apks Uninstall And Some Problem Fix Methods but debugging isn't mentioned there. He suggests the fix there to make sure the correct boot, modem etc is flashed but I did flash all those correctly. Guess I will wait until he updates ROM and flash it all again, can't be bothered to backup and restore everything for this one thing, especially as it shouldn't be because of that with me flashing it all correctly. Ah well, thanks @scary alien