[HTC Vivid, Raider, Velocity] zsjdddfw:
Hi, I'm actually new to an Android device, but the HTC vivid I got from AT&T just behaved horrendously (battery dies in less than 2 hours, input method constantly stops working, any of the touches on the screen are frequently recognized as dragging down the status bar, can't pick-up or make phone calls very often, changes the screen brightness by itself like crazy if set auto-brightness, etc) so I decide to make some change.

The ROM I am currently using: http://xdaforums.com/showthread.php?t=2420985

The problem that I have now is that in system settings->storage, I can see my ~30GB external SD card. The SD card works fine if you plug it to a PC. But no apps on the phone can access this SD card. I was using a CWM recovery, and now a TWRP recovery, both give me an error message saying something like "unable to mount sd-ext".

These are what I see in system settings.

View attachment 2623765

View attachment 2623766

I will explain what I did with my phone during the past 3 days to give you an idea of what may go wrong.

First I tried to root the device with some "one-key rooting" software I found online, but it failed. Then I learned that I have to unlock the bootloader of the phone. So I went to htcdev.com and followed the instructions, but my Win8.1 computer could not recognized the phone when the phone was in fastboot mode (although I could see "FASTBOOT USB" on the phone, the computer just said "unrecognized device" or something). So I borrowed my roommate's Macbook Pro, and successfully unlocked the bootloader. Then the "one-key rooting" software worked, and my deviced was rooted. By that time the storage worked without any problem.

Then I tried to install a ROM made by "Team Hydra" on my phone (I can't find the original post now but I noticed a new thread http://xdaforums.com/showthread.php?t=2524934, which I suppose is an update of the ROM), but I didn't know about the "S-ON" status of my phone, so apparently I can't boot my phone to system. At this time I had CWM recovery on my phone. So I took out the battery, thought it was the ROM's issue.

I found that I could flash a ROM by copying the ROM zip files into my external SD card, and use CWM recovery. So I tried this ROM: http://xdaforums.com/showthread.php?t=2026675 which is an official Cyanogenmod nightly version. Still no luck because I didn't flash boot.img. Then I read this thread http://xdaforums.com/showthread.php?t=2036710 and understood the boot.img issue. I successfully installed the ROM, but found that the phone did not recognize either my internal SD or my external SD, so most of the apps couldn't run, even the camera.

Then I found this thread http://xdaforums.com/showthread.php?t=2420985 and noticed in the changelog there was a "Fixed SD Card" update. So I installed this newer version of ROM (also using the external SD). I felt very strange that the recovery could install the ROM with the external SD, but the operating system can't use the SD card (same as the snapshots shown above, except that the sdcard(FAT) was also "Unavailable").

Then I found another post online, and tried the method: I flashed TWRP recovery on my phone, and tapped "mount". Then I plugged the phone to my PC, and format the 8GB partition which seemed to be somehow corrupted. After that the internal SD card worked fine, and it is what I have now. The external SD can't be used by any of the apps, and if I reboot to recovery, and try to mount sd-ext, I can get a message saying "unable to mount sd-ext".

Ok now I got really confused, and the posts and threads I found online are not quite the same as the problem I am having. I wish to get help here. Thank you.

#New Problem Found#

Also I find my bluetooth can't be turned on...