I've been tinkering around with this for a few months, and finally made it easy and simple to install. So for all of those with the "firmware expired" error, here you go!
The Steps:
1. Download your default kernel and install it to your SD (make sure it's the primary boot)
2. Download YSMenu:
http://gbatemp.net/threads/retrogamefan-updates-releases.267243/
and install it (make it the secondary boot)
3. Load up your card (it should boot to the default kernel), and load up all of...
How to bypass the date softbrick on r4isdhc.com cards and keep DSi-enhanced game compatibility
The Steps:
1. Download your default kernel and install it to your SD (make sure it's the primary boot)
2. Download YSMenu:
http://gbatemp.net/threads/retrogamefan-updates-releases.267243/
and install it (make it the secondary boot)
3. Load up your card (it should boot to the default kernel), and load up all of...
How to bypass the date softbrick on r4isdhc.com cards and keep DSi-enhanced game compatibility