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--- software_modifications_for_c64u [2026/02/01 11:19] – [Changing BASIC prompt GUI] walter
+++ software_modifications_for_c64u [2026/08/30 17:10] (current) – fritigern
@@ Line 18: / Line 18: @@
   * [[https://www.facebook.com/groups/1249159557042604/permalink/1262180862407140/|FB-post from Dean W. about how he changed the default BASIC boot GUI]] \\
 Service to change the look of the default BASIC startup screen.
-        * => https://c64.pro
+        * => https://c64.pro or https://c64kernal.com/
       * Website where you can upload your own ROM file. The service will modify the file with the selected esthetic option. After payment of $3 you can download the file and activate it. - Except some designs who are free of charge
       * Works also with JiffyDOS and DolphinDOS
@@ Line 28: / Line 28: @@
   * https://csdb.dk/release/?id=187321
+===== Firmware =====
+<wrap lo>Firmware is a type of software program embedded into hardware devices to help them function smoothly and effectively. Firmware is installed directly onto a piece of hardware during manufacturing. It is used to run user programs on the device and can be thought of as the software that enables hardware to run.</wrap>
+====Official Firmware====
+  * **[[https://commodore.net/downloads/|Official firmware by Commodore]]** - If you have just recently received your C64U, you may want to update your firmware from 3.14 to 1.1.0 to improve the functionality of your Commodore 64 Ultimate. Note that Commodore decided to change the version numbers of their firmware to emphasize the difference between the firmware for Gideon's line of Ultimate devices and the Commodore-branded ones. Firmware versions for the C64U are, in order of newness, 3.14, and 1.1.0, where 1.1.0 is the most recent one. Note that firmware 1.0 was really just a renumbered firmware 3.14.
+====Unofficial Firmware====
+  * **[[https://github.com/spiffycrew/Spiffy_Ultimate|Spiffy Patch]]** - Adds several QOL features and fixes a bug or two on top of the most recent official Commodore firmware. Offers a temporary "soft patch" option that is reverted after a restart of the computer. Can also be flashed permanently for those that wish to do so.
+    * Replaced Commoserve with Assembly64 for a larger software collection.
+    * Additional hotkeys for reset, reboot, power cycle, power off, joystick swap,  set/go to home, and show dev log.
+    * Custom branding of the Ultimate menu
+  * **[[https://github.com/jusii/prkl_ultimate|PRKL patch]]** - Mainly the Spiffy Patch with very good USB Mouse and keyboard support added in, plus a few under-the-hood fixes. Adds scroll wheel support for USB mice. Great for use with GDOS64 and MicroMysX0 mouse driver!
+<WRAP center round alert 60%>
+Flashing your Ultimate device with unofficial firmware technically has the potential to render your device unusable.
+Use at your own risk.
+</WRAP>
 {{tag>software look&feel}}