If your having problems with your VitaShell working based upon corruption or simply not working after the swap of uma0: to ux0: then this is the video is for you.
NOTE: If you DO NOT have a working VitaShell and you need it to install this VPK, search for the VitaShell link from the Flow and download using Content Manager in HENKaku settings.
Link: http://www.mediafire.com/file/wdtway8s33b6dun/HWC-SOS-v1.vpk.963.v1.0.vpk
Step 1: After Downloading the file from above open your VitaShell or MolecularShell and activate your USB/FTP connection to your PC.
Step 2: Copy the VPK to the root of ux0:/ and then exit the connection.
Step 3: Install the VPK via VitaShell or MolecularShell by selecting the VPK and hit X at both installation prompts. If you have the TF Card reader Application installed you can use that as well to copy the file to your Vita and install it.