Got a scam robo call. Voicemail cannot be deleted. Keeps reappearing. Iphone seems unable to reset. Tried to erase all data to do a restore but iPhone failed to reset.
I have an iPhone 6 Plus. I recently received a scam robo call which left a message in voicemail. This message cannot be deleted. I've tried several times but it just pops back. I called Apple Support and the only solution proposed was to back up the phone and restore to factory settings. I have backed up my phone to my Mac but when I attempted to reset and erase everything all I got was the Apple logo and a progress bar which didn't move. I waited for 15 minutes and still there was nothing happening. I held the sleep wake button and home button until it came back up. Everything was still there including the scam robo call message which I can't get rid of. I did erase all recent calls but I cannot get rid of that message. Is there a way to fix this without getting a new phone?
iPhone 6 Plus, iOS 9.3.2