What is custom firmware?Ĭustom firmware (“CFW”) is a full software modification to your 3DS, comparable to “administrator access” on a computer. If you have installed CFW in the past, it is highly recommended to follow Checking for CFW to make sure your custom firmware is up-to-date. The latest system software version is currently 11.15.0-47. Thoroughly read all of the introductory pages (including this one!) before proceeding.
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