During each batch of Pulses, there is a firmware that is associated to this unit. During some batches we created a firmware that is solely for that batch and serial number.
It is not recommended to change the firmware for these units. We will have updated firmware that can be associated to your unit's serial number. If you would like to check the status of your
units serial number and firmware, we ask that you please open a ticket and provide the serial number found on the bottom of your unit. At that point we will let you know if a new firmware is available
and provide you the corresponding file to run your DFU utility with.