Phone is stuck on 'Temperature' Warning
Hi so recently my phone started to bug out and i gave it a hard reset, this didnt fix anything, i then went to a few stores which recommended wiping my phone, so i did that. My phone is now officially wiped clean and updated however i cant get to the unlcock screen as the Temperature warning sign is up and only allows for Emergency calls, I have reset and wiped my phone again but the issue stayed the same. It has been like this for around 5 hours now and people are unable to help me, any suggestions would be great!
iPhone 6, iOS 8.3