Download the latest firmware and bootloader
Download and install the Nordic nRF Connect App
Open your Google Play Store and search for "nRF connect"
Install the app on your device
Copy the necessary files from Mac to your Android device
Download the Android File Transfer App here.
Open androidfiletransfer.dmg.
Drag Android File Transfer to Applications.
Use the USB cable that came with your Android device and connect it to your Mac
Double click Android File Transfer.
Browse the files you've downloaded and copy it on your Android device
Copy the necessary files from a Windows computer to your Android device
With a USB cable, connect your device to your Windows compuer
On your device, tap the "USB for..." notification.
Select Transfer files.
A file transfer window will open on your computer.
Use it to drag files.
Video Instruction
Set the Tracker in DFU Mode
Turn on bluetooth on your device
Open the Nordic nRF connect app
Turn on your Tracker
Connect with your Tracker
Wait until the list is loaded
Klick on the three dots in the grey area and Enable services
Scroll down to service "c7e70000..." and tap on it
Hit the "arrow up" button to write on this service
Write the value "01" and press SEND
Close the "TIMEULAR TRACKER" tap in the upper blue area with X
Go to the Tap "SCANNER"
Rescan by swiping down with you finger in the grey area
Now you see your ZTrackerI° in DFU Mode
Upload the firmware
Set your Tracker in DFU Mode (see the previous section)
Connect to your Tracker in DFU mode
Klick on the DFU Button in the upper right corner
Select file type "Distribution packet (ZIP) " and hit OK
Choose the ZIP package "ZEI_320-801b_s130_bl_dfu_package_v113.zip" from your device. (usually, it is in your download folder)
Wait until the upload is completed and you see a list again
Close the "TIMEULAR TRACKER" Tap in the upper blue area with X
Go to the Tap "SCANNER"
Rescan by swiping down with your finger in the grey area
Now the firmware was updated on your Tracker
Update the Bootloader on your Tracker (this is important!)
Update the Bootloader
Set your Tracker in DFU Mode (see the instructions above)
Connect to your Tracker in DFU Mode
Klick on the DFU Button in the upper right corner
Select file type "Distribution packet (ZIP) " and hit OK
Choose the ZIP package "ZEI_320-801b_s130_app_dfu_package_v113.zip" from your device. (usually, it is in your download folder)
Wait until the upload is completed and you see a list again
Close the "TIMEULAR TRACKER" Tap in the upper blue area with X
Go to the Tap "SCANNER"
Rescan by swiping down with your finger in the grey area
Now the bootloader was updated on your Tracker