Ep-T21 don't pair themselves

Got my erbuds today, charged them , followed the istructions and was imposible to make them work both at the same time.
I saw this happens to many other people, so i followed all the instructions posted on the forum with no results.
I keep getting two diferent devices in my phone, one for each earbud.
Anyone can give any solution?
As said before…the followind didn’t work:
> switching them off first,
> then a hard factory-reset on each,
> deleting earbuds from paired devices,
> taking them out of case simultaneously to allow them to sync with one another first (with no other bluetooth device in reach).