Once the display is broken, you need to know how to repair iPhone 6s screen. Only possible solution: bring it to iPhone Clinic, we'll repair your iPhone 6s screen.
We recommend that you back up your data first. Once done, to repair iPhone 6s screen is preferable to contact iPhone Clinic and request replacement.
You can request the screen replacement of the iPhone 6s by courier, if there is not an iPhone Clinoc nearby or if you have difficulty in reaching our store, with the addition of shipping costs. Package will be sent by courier. Inside you will have to insert the iPhone 6s and then send it back. Once received the iPhone 6s, iPhone Clinic will repair the broken screen.
In conclusion, by calling the number indicated on the site, you can request iPhone Clinic to fix iPhone 6s screen even through the phone call.