Hi, I Have Same Problem Since A Month With My HTC One M7 32GB
I Got this phone as a Gift From USA HTC one M7. My Phone Just got hanged on lockscreen when i try to restart it, it turns off but did not turn on,no single light is turning on, no screen light or notification, no recovery or download mode. its like a brick piece. i tried all charging tricks such as USB PC ,Wall Charger for Hours, Orignal Charger and rest things, i cannot send phone to USA , i am in qatar, what should i do, any guys who experienced such problem and how did they solved it and, what will be the cost if no warranty. any help ? thanks in advance.