Locate the launch.ini
installer/files/launch.ini

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Open launch.ini and use the following to setup which dashboard you want to load by default, simply copy and replace the setup to your liking. If you use the files I provided and change nothing it will load Freestyle dash by default.

Freestyle Dash
[QuickLaunchButtons]
BUT_X = Hdd:\Content\0000000000000000\C0DE9999\00080000\C0DE99990F586558
Default = Hdd:\Freestyle\default.xex
[Settings]
nxemini = true
pingpatch = true

Retail dashboard
[QuickLaunchButtons]
BUT_X = Hdd:\Content\0000000000000000\C0DE9999\00080000\C0DE99990F586558
BUT_Y = Hdd:\Freestyle\default.xex
Default =
[Settings]
nxemini = true
pingpatch = true

Xexmenu
[QuickLaunchButtons]
BUT_X = Hdd:\Freestyle\default.xex
Default = Hdd:\Content\0000000000000000\C0DE9999\00080000\C0DE99990F586558
[Settings]
nxemini = true
pingpatch = true

Step 1
Download the links provided and place them on your USB flash drive, then move your USB flash drive to your Jtag and turn it on.

Step 2
Get to the xexmenu however you normally do.

When Xexmenu loads,

press RB on the xbox controller

press X

select Usb0 and push A


Should look like this
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Select Freestyle, press Y, select Copy and press A
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Press X, select HDD1 and press A
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Press Y, select Paste and press A
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Press X, select Usb0 and press A
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Select installer and press A
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Select default.xex and press A
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When it loads it should look like this, now press A
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Press A
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Answer the questions to your liking, here is my setup,
Would you like to change settings? A - yes
Do you want to be able to relaunch from miniblade in NXE dash? B - no
Do you want to enable FBDev's ping limit patch? A - yes
Do you want to enable mojobojo's content unlock patch? B - no
Do you want the console to freeze on fatal errors? B - no
Do you want the console to reboot on fatal errors? A - yes
Do you want to enable ability to region spoof with RB on game launch? A - yes
When a default item is set and you playing a video, exit back to NXE? B - no
When you are playing an XBLA game and use the exit option, exit to NXE? B - no
Do you want to remove the ability to go to system settings via miniblades? B - no
Do you want to block the xbox from finding system updates? A - yes

As a safety precaution, I unplugged the xbox for the back of the console for 10 secs, like when swapping keyvaults, plugged it back in and turned the xbox on. It should now boot into Freestyle Dash by default.