I also ordered the Bricasti V1.11 MDx Upgrade for my Bricasti M21 DAC (also M1SE, M3) and installed it
In addition to the improved in performance that the MDx offers, there 2 new features in V1.11 for all products upgraded from early MDx versions:
CLK Wide / Fine: On all products is the ability to change the Master clock sync from a fine very accurate setting to a more forgiving wide one, yielding a more relaxed sound and to allow for fine tuning of this change. Both settings yield very low jitter results.
Filter 1: For the M3, M12 and M21 products, the addition of 2 new filters, one for each type linear and minimum phase. These filters are currently found in the M1 and were found to be customer favorites and we feel would be welcome addition to the current simple 2 filters approach in those products.
As per Bricasti’s SIM Chip instructions, I removed the cover of my M21 DAC and inserted the SIM CHIP in the marked slot. The SIM chip was very easy to align and insert. I had no issues and it works perfectly. I also changed the setting to wide.
After reading their instructions, I was concerned about finding the slot and inserting the SIM chip. However, when I removed the cover, finding the slot was obvious and I had no issues. The location of where the chip needs to be inserted is clearly marked. YES, you have to be CAREFUL inserting the SIM Chip and I used a flashlight to help me.
Once you power up the DAC, please WATCH the screen for a progress report (it goes fast) and the words PROG OK. Any questions, please ask. cheers.