Make sure that your console has a working internet connection
Open VitaDeploy, navigate to "App Downloader" and select the following apps:
Vita Homebrew Browser
Custom Themes Manager
Click on "Download the selected apps", VitaDeploy will download the app packages and launch the file manager where you will be able to install the downloaded apps
Add some internal user storage on Phat (PCH-1XXX) units by going to VitaDeploy->"Miscellaneous"->"Create an internal memory card" (i recommend the 100MB option)
Replace the abandoned "near" app with VitaDeploy by clicking on VitaDeploy->"Miscellaneous"->"Replace 'near' with VitaDeploy"
Remove the annoying AVLS auto-enable by using VitaDeploy->"Miscellaneous"->"Toggle the AutoAVLS feature"
Warning: this will enable Auto-AVLS if it's currently disabled