From an iPhone 6S I upgraded to an iPhone 8 plus. I tried to link my Astrum 3.0 bluetooth keyboard, but I can not get it to work. First I turned on bluetooth and then the keyboard. Then on the keyboard itself I press and hold escape plus the Letter K for almost a minute. Silence. On the iPhone 8 plus the bluetooth options under settings is opened. It shows bluetooth is turned on. I swiped right until I hear: "Keyboard button." I opened that and swipe right and tried to enter the 4 digit code provided, but then received the message that the connection failed and I must make sure the keyboard is turned on. I tried this several times. No luck. I also can not connect my JFlip3 bluetooth speaker. No go. Can it be that these devices are to old now? I will cry myself to pieces if that is the case. I even turned off my iphone and back on. The problem is still not solved. Please someone? Come to my resque. I will be for ever greatful.