DM48 firmware v1.56
-------------------


Introduces the following compared to v1.55:

* A Global preset for SWAM instruments in GeoShred was added (Geoswam). Note that a factory reset is
  needed for this to become available.
* New shortcut key combination (slider+round button) for quickly reaching the 2nd/3rd slider and
  Global preset page (replaces the old shortcut).


IMPORTANT NOTE: If v1.54 or later is installed already, there is NO NEED TO RESET ANYTHING (although
see note above). If updating from a version prior to v1.54, PRESETS NEED TO BE RESET TO FACTORY
DEFAULTS after installing. You MAY NEED TO RESET YOUR TUNINGS, too. Check your version before
installing by holding down the slider button during power-up, and make note of it. See further
instructions below regarding possible factory resetting.


INSTRUCTIONS FOR UPDATING - READ AND FOLLOW VERY CAREFULLY!

1. On your Mac, Windows, or Linux machine, install the "Teensy Loader" application, available here:

https://www.pjrc.com/teensy/loader.html

2. Connect your DM48 while HOLDING DOWN THE SLIDER button. The screen should show the current
   firmware version. KEEP HOLDING the button for 10 seconds. Your DM48 should now say "Ready for
   update", meaning it is ready to receive a firmware update via USB. Try again if you don't see
   this message.
   
3. In Teensy Loader, open the firmware file provided in this zip archive, DM48_firmware_v1.56.hex.
   Do this by clicking "File" and "Open HEX File" in the menu, and then navigating to the file. MAKE
   SURE TO OPEN THE CORRECT FILE.
   
4. Click the "Auto" button in Teensy Loader. KEEP YOUR INSTRUMENT CONNECTED - the updating process
   must not be interrupted. The new firmware should now upload to your DM48, and the instrument
   will restart after that. It is now safe to disconnect. Double check that you have the new
   version by holding the slider while connecting the DM48 (no need to hold longer this time). This
   will clearly show the version, although it is also briefly shown during normal startup.

5. If updating from a version prior to v1.54, now perform a COMPLETE FACTORY DEFAULTS RESET for
   global parameter presets: Connect your DM48 while HOLDING DOWN ALL THREE MENU BUTTONS. You should
   see "Factory settings restored" on the screen. Repeat if you failed to see a confirmation message.
   DO NOT KEEP HOLDING the buttons longer after that, as this will lead to your tunings also being
   reset to defaults, UNLESS UPDATING FROM A VERSION PRIOR to v1.40: in this situation, tunings
   REQUIRE resetting, too.


LICENSE INFO

This software is designated for use by a single owner of a DM48. It is licensed for use only in a
DM48 instrument manufactured by Lekholm Instruments AB, Sweden.
