Installing HENkaku
You must run the installer each time you reboot the device before you can launch any homebrew application. You do not need to reinstall when you place the device into sleep mode. If you press the power button once, you are in sleep mode and do not need to reinstall HENkaku. If you hold the power button and then choose the option to Power Off, then you do need to reinstall HENkaku. You also need to reinstall if the battery runs out. Installing HENkaku requires an internet connection.

The first time you install HENkaku, a new bubble named “shell” will show up in LiveArea. This application allows you to install other homebrew bubbles. However, once you reboot the device, molecularShell and any other homebrew bubbles you installed will not be able to be launched until you run the installer again.

It is important that you never update your Vita past 3.60 if you ever wish to use HENkaku now or in the future. If you do update, all your installed homebrew will no longer work and you cannot install any homebrew in the future.

Installation
Make sure your Vita is running firmware 3.60
Open the Web Browser application and visit https://henkaku.xyz
Press the “Install” button
You will get a “Welcome to HENkaku” message. Press “OK”
Once the installation is complete, the browser will be closed automatically
Hint: If you've installed HENkaku before, you can install it again directly from molecularShell's LiveArea. Just open the "shell" bubble and use the orange "install" button.
Troubleshooting
Error C1-6775-5 when launching molecularShell

You must run the HENkaku installer again. Follow the directions above.

The web browser shows grey “Please wait…” screen

This is normal. Just wait for it, eventually it should load the page and trigger the exploit.

The web browser crashes and an error report dialog appears BEFORE “Welcome to HENkaku” pops up

Press “OK” and try again. If the browser crashes more than three times in a row, you can quit the browser (Press the PS button and swipe the LiveArea page from the top right corner or hold the “O” or “X” button depending on your region). Then you can re-attempt installation.

The web browser crashes and an error report dialog appears AFTER “Welcome to HENkaku” pops up

Press “OK” and try again. If this happens more than three times in a row, you should reboot the system and try again.

The device freezes or reboots after trying to install

The installation has failed. Make sure you have a memory card inserted with at least 10MB of free space. If the device froze, hold the power button for 15 seconds to manually power off the device and then press the power button again to restart the device. You can then attempt to install again.

You need a memory card inserted even when using HENkaku with devices that come with built in memory, such as PS Vita Slim and PS TV.

The web browser automatically closed after installation

That is the expected behavior. HENkaku should now be installed. You can launch homebrew applications including molecularShell (see usage directions below).

The screen becomes black after the installation

Press the home/PS button and close the browser manually. Installation should be successful.

Using molecularShell
The first time you install HENkaku, the molecularShell bubble will be added to your LiveArea. This will be your portal to installing homebrew.

Installing Homebrew
The homebrew package you wish to install should be a file with the .vpk extension.
Make sure Wifi is enabled and you are connected to the same network as the host computer.
Open “shell” by launching the bubble.
Press SELECT to start a FTP server. Please note that the FTP server is not password protected. Only run it on a trusted local network.
Note the IP address displayed in a message popup.
Open your FTP client on the host computer and connect to that IP address.
Navigate to “ux0” (this is the root of your memory card) and you can upload the .vpk package here or in any subdirectory.
Once you upload all the packages you wish to install you can disconnect the client.
Back in molecularShell, press CIRCLE to stop the FTP server.
Navigate to “ux0:” and then to where you placed the packages. To install, select the package and press X.
Troubleshooting
Error C1-6775-5 when launching molecularShell

You must run the HENkaku installer again. Follow the directions above.

FTP error

Check if you have a firewall on the host computer. Also make sure you’re on the same network as the host.

Running Homebrew
Once you installed HENkaku, running homebrew is as simple as launching the installed bubble directly from LiveArea!

Support
Running into problems? You can find us on FreeNode IRC at #henkaku. Community support will also be provided in the subreddit /r/vitahacks.