My HTC one m7 is in a non-stop boot loop, even in reset mode and cant reset!! HELP! HELP! PLEASE!!!!

[AC Question]

My HTC One is stuck in a non-stop boot loop. Even if I (reset) hold down the power button and volume down at once. The reset screen and choices pop up, it only has a few seconds to either scroll up or down and then it boots over again and again....etc. It doesn't seen to make a difference if i take out the old sprint sim card that was in the side of it, or leave it in. Nothing works. Any ideas? Please help me. Thank you!

 

[B. Diddy]

Welcome to Android Central! Can you try booting to Recovery and wiping the cache partition as described here? https://support.t-mobile.com/docs/DOC-6526