So, I used to be an avid tinkerer, could get my way around most devices. That was about a year and a half ago. Then I got a Nexus 4, found Paranoid Android, and never had anything to worry about again. Recently, I switched to the HTC One. I got it used, clean numbers and all, nothing to worry about. What I didn't know until I picked it up, is that it was an unlocked AT&T model. It worked great, and then I started to change some things. I have no idea about the kernel, but it had TWRP installed, as well as CM 10.x (I just know that it was still on a Jelly Bean build). I went to flash CWM because that is what I'm used to and comfortable with, then proceeded to flash Paranoid Android 3.99 RC2. After that, it would no longer recognize my sim card, among other problems like not being able to communicate with the camera. I first noticed the sim problem when I went to input the proper APN settings for TMobile. Where I'm at now. I'm trying to reinstall TWRP because of course I made a backup before doing anything at all. However, I cannot get adb to push it. When the phone is fully booted up, through the command "adb devices" I get, Code (Text): C:\fastboot>adb devices List of devices attached HT3A9W904144 offline However, when I run "adb devices" while the phone is in fastboot, I get an empty list of devices. Also, when I run "fastboot flash recovery recovery.img", I get Code (Text): C:\fastboot>fastboot flash recovery recovery.img target reported max download size of 1526722560 bytes error: cannot load 'recovery.img': No error Now, I'm not really as versed in coding languages as I'd like to be, but that makes no sense to me at all since the recovery file is only just over 9MB and it said the max download size is near 1.5GB. Not to mention the "No error" error. If it helps anything, here is the information displayed in my bootloader/fastboot pages: Code (Text): *** TAMPERED *** *** UNLOCKED *** M7_UL PVT SHIP S-ON RH HBOOT-1.55.0000 RADIO-4T.20.3218.13 OpenDEP-v31.120.274.0617 OS-3.17.502.3 eMMC-boot 2048MB Oct 4 2013,00:49:44.0 Now, I need to be able to install TWRP again so I can restore my device to working order. Is there anybody with advice? ps: I'm running windows 7 home premium 64bit. For anybody I deem trustworthy, you're welcome to help out through remote desktop by means of teamviewer if that helps. Just ask me first.