Well, one problem is that the screen is cracked.
Seriously though, the phone for some reason or other cannot load into the OS, and is stuck in bootloader. Other than that, not much else can be determined if you don't know the history of what was done.
Originally Posted by pvirus86
is there any other way through which we can come to know what can be done??? such as an odin thing which i used to do in my samsung note 1 or 3???
Nope. You need to know the history of the device. There is an HTC-specific recovery utility. But running it on a device with unknown history can brick the phone permanently. Particularly since the device is definitely tampered (as shown on the first line of the screen).
Also, the phone's IMEI is personal information, and should not be posted on the internet. You should edit the photo to hide the IMEI.
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Phone: AT&T HTC One (M8)
Tablet: Samsung Galaxy Tab Pro 8.4 (WiFi only)