Tried it with two versions of ADB .39 and .40

[MessedupBirdie]

Recently changed my phone, it's a new phone and this one isn't connecting. Gives following error.

2019-06-08 13:42:35.681 I Gnirehtet: Checking gnirehtet client...
2019-06-08 13:42:35.681 I Gnirehtet: Starting relay server...
2019-06-08 13:42:35.800 I Relay: Relay server started
2019-06-08 13:42:40.565 I Gnirehtet: Starting client...
Broadcasting: Intent { act=com.genymobile.gnirehtet.START flg=0x400000 cmp=com.g
enymobile.gnirehtet/.GnirehtetControlReceiver }
Broadcast completed: result=0

[rom1v]

Unfortunately, this is a recurrent problem. Some devices require to "authorize" the app manually, but each in different ways. See for example: #161 (comment) and #150 (comment).

I need to do something to avoid this problem…

[rom1v]

Should be fixed by f868180.