My HTC One M9 has become stuck in a bootloop, and I am unable to launch recovery mode or start the phone normally. Usually, recovery mode would show an image of my phone with a red exclamation mark, although it is just a black background with a silver HTC logo, and then jumps to a normal bootloop after 15 seconds or so. There have been a couple of (seemingly unrepeatable) occasions where the phone has started up normally but after I unlock it, it freezes and after a minute or so crashes and starts the bootloop again. Usually, I would try to factory reset it, but as I can't access recovery mode, I can't clear cache or reset it.
When I start the phone in download mode (Power + Volume Down while phone is off), it confirms that it is locked and S-ON. At the bottom, there is a few things. 'Security checking failed GT_CONNECT_FAIL' is the first line, although I believe I had that issue before this, and it hadn't affected anything. Underneath that is the disclaimer about flashing. Underneath the disclaimer there are three lines. 'SD MOUNTED' (I use a 64 GB Sandisk SD card, if that's important), 'OTG NOT MOUNTED' and 'File NOT FOUND'
I have Linux knowledge, although I'm not really a phone person so you might have to explain some things to me.
Thanks in advance!
When I start the phone in download mode (Power + Volume Down while phone is off), it confirms that it is locked and S-ON. At the bottom, there is a few things. 'Security checking failed GT_CONNECT_FAIL' is the first line, although I believe I had that issue before this, and it hadn't affected anything. Underneath that is the disclaimer about flashing. Underneath the disclaimer there are three lines. 'SD MOUNTED' (I use a 64 GB Sandisk SD card, if that's important), 'OTG NOT MOUNTED' and 'File NOT FOUND'
I have Linux knowledge, although I'm not really a phone person so you might have to explain some things to me.
Thanks in advance!