Open the imo app on your Android phone or tablet. Hi How could i 'unblock' a contact on imo app for iphone6? I am trying to. After you delete the contact, you will get Block option.How to Block a Contact on IMO App Whether you have an Android or iPhone Now click on his name from the top of your screen.First Open user profile of you would like to block on IMO Tap on the tab named Chats situated in the top. Open the imo application on your Android mobile or tablet. How to block imo contacts in Android Phone? Go into your call log and then go to “Recents” find the number you wish to block or the name of the person, then to the right you will see a small blue icon (i). Tap the app icon, which resembles 'imo' inside of a speech bubble on a white background. Either tap on the contacts name at the top, or tap on the three-dot menu and then on View Profile.Once you are in imo, tap on the Chats tab located in the top menu on your screen (See image below) Open the imo app on your Android phone or tablet Toggle Blocking: Below their profile picture, more options will be shown. Tap on there Name- When you will touch their name one new window will open. Search and Select the contact: Go to the contacts menu and tap on the name to open more options. Launch IMO: Tap on the IMO icon in the main menu.