We have seen that for some users, when the firmware update is performed the link keys between your phone and your Pulse can get messed up. What this means is that your phone will remember your Pulse, but the Pulse won't have the correct information to connect to the phone. Fortunately this is a quick thing to fix!
Go into your phone's Bluetooth settings, tap the information or settings button next to your Pulse, and then 'Forget This Device' for iPhone or "Unpair" for Android"
For full instructions on this, please see this article
Turn your phone's bluetooth off then on, to make sure to clear out any remembered devices
This is especially important for newer iPhones
Turn your Pulse on
Open the Pulse App and connect to Pulse.
2. Plug Pulse into your camera AFTER connecting Pulse to your phone
Open the app and pair your Pulse.
Turn on your camera and connect Pulse with the USB cable.
Follow the screen below to establish a bluetooth connection.
At this point, you should be all set, but if you are still having issues with the firmware update, please try the following :
1. Update one Pulse at a time.
If you have multiple Pulses, only turn one on for the update at a time.
Turn off any bluetooth devices nearby that may be causing interference.
2. Complete Pulse Reset:
Turn Pulse Off.
Fully close the Pulse App. Android: do this in your phone's settings. iOS: double tap the home button and swipe up on the Pulse App.