my iphone 6s has locked me out

[sailorette]

i am locked into Yahoo mail.  I have forcibly shut my iphone down numerous times but it immediately returns to Yahoo.  I cannot make phone calls, write texts or anything else but Yahoo.com.  I have read a lot of advice found using my laptop but nothing is working.  Help!

[vzw_customer_support]

We want to ensure that you are able to use your phone again, Sailorette. Let’s work together to see what’s going on and how we can help. Does it show your icons on your phone when you power the phone back on or does it go to the browser? Have there been any recent updates to your device (software related)? Any moisture or physical damage to the device?

TakendraW_VZW

Follow us on TWITTER @VZWSupport

If my response answered your question please click the _Correct Answer_ button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!!

[vzw_customer_support]

Sandy, we understand how important it is to be able to use your phone. We are here to provide support. Do you have any physical damage on your phone? Are you able to access any of your menus? Follow link to try to clear temporary internet files: https://www.verizonwireless.com/support/knowledge-base-206746/

Ralpht_VZW
Follow us on Twitter @VZWSupport
If my response answered your question please click the "Correct Answer" button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!!