The latest firmware version for the GPS Pro is 3.0.0, which is a required update only available through USB.
I'm having trouble with the USB drive on my Pro+, what should I do?
The USB Drive that is created is a copy of the internal file system and susceptible to corruption. It may sometimes be necessary to erase that copy and start fresh. This will not damage the underlying logs. Please follow the below instructions to erase the drive and make a new copy:
- Start with you Bad Elf GPS Pro+ turned OFF.
- Connect the Bad Elf GPS Pro+ to power using the cable, but DO NOT turn the Bad Elf GPS Pro+ on. Do NOT enter USB drive mode.
- Press and hold the middle button on the Bad Elf GPS Pro+ for 5 seconds. You should see the text SAFE MODE appear on its screen.
- Do NOT tap the bottom button to enter SAFE MODE.
- Press and hold the middle button on the Bad Elf GPS Pro+ for 5 seconds again. This time you should see the text USB DRIVE appear on its screen.
- Repeat step 5 several times. We need the Bad Elf GPS Pro+ to enter SAFE MODE a total of four times.
- As soon as you enter SAFE MODE for the forth time, you should see the text ERASE DRIVE. Now tap the bottom button to erase the drive.
Optional troubleshooting step: Bluetooth pairing reset
If your GPS Pro+ previously worked on the same iOS version and recently stopped reporting location data, you can try resetting the Bluetooth pairing state. This step does not resolve iOS CoreLocation compatibility issues, but may help in cases where the Bluetooth pairing record has become corrupted.
Clear the pairing record on the Bad Elf GPS Pro+
- Turn the Bad Elf GPS Pro OFF.
- Press and hold the middle button.
- While continuing to hold the middle button, press and hold the top button until “BT CLEARED” appears on the display.
- The device will power off automatically and all existing Bluetooth pairings will be removed.
Remove existing pairings from your iOS device
- On your iPhone or iPad, open Settings > Bluetooth.
- Tap the ⓘ icon next to the Bad Elf GPS Pro entry.
- Select Forget This Device and confirm.
- Repeat this step on any other iOS devices that were previously paired.
Restart your iOS device
Fully close all running apps, then restart your iPhone or iPad.
Re-pair the Bad Elf GPS Pro+
- Turn the Bad Elf GPS Pro ON.
- On your iOS device, return to Settings > Bluetooth and tap the Bad Elf GPS Pro entry.
- When prompted, confirm the pairing request on both the iOS device and the Bad Elf GPS Pro by pressing the bottom button.
If the device continues to appear connected but does not provide location data after completing these steps, the issue is likely related to iOS handling of legacy Bluetooth GPS receivers and cannot be resolved through further troubleshooting.