Firstly, Thank you for message. I am new on Blynk. Actually I surf on youtube. I saw this video. I like it. Install on my iphone. Try the same project. I used arduino uno, iphone7 and usb. It works very well. No problem. Just only I use windows 10. In this video is shown ios. So find solution how to use for windows. Then I could control my led with Blynk.
The next day, I open Blynk on my iphone. It didn’t work. The second picture I showed it. “Test2 is offline”. I couldn’t control my led. So I search on this platform. I couldn’t find any solution. But I saw this topic. I tried it. The same problem like I shared first picture.
So I think, maybe I can solve like this. But it didn’t work. I didn’t know where I made mistake. Maybe I was confused the topic. So I explained my Blynk story from first meet until now 
How can I fix “test2 is online”? Maybe I solve this problem, I can control again my led.
Thanks Eren.[quote=“Teyfik_Eren_Erez, post:3, topic:14907”]
[/quote]