3DS system update 7.2.0-17 is now available, I can confirm that my supercard dstwo http://www.r4flashcart.com/10-supercard-dstwo-flashcart-for-3ds-xl-3ds-dsi-ds-lite.html is working great without need of any update patches. Main changes for version 7.2.0-17U Update released: May 12th, 2014 Added e-mail support to Parental Controls, allowing parents that have forgotten their PIN to send themselves an e-mail with instructions on unlocking Parental Controls. Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.
Also test my r4i gold 3ds flashcart this one: http://www.r4depot.com/8-r4i-gold-3ds-flashcart-for-ds-lite-dsi-3ds-3ds-xl-2ds.html , works fine with the newest firmeware . Cheers!
If this firmware is not blocking flashcards , Maybe its time to test on 2DS + this update.... As this console is the only one not tested cause of its high firmware . Just a thought can anyone ? Sorry no flashcard to test myself.