B2316 is Cat M1 & NB-IoT GPS Bracelet. If you Touch the SOS Button by mistake to make the device into DFU (OTA) mode, you can use the HSTools tool to exit OTA.
Download HSTools App
- Click here to download the HSTools APP.
- Install the HSTools to your Android phone
- Open HSTools App
- Choose OTA
- Click “Start Scan” (Bottom right corner of APP)
- Choose “HS-OTA”
- Once connected and then Click “exit ota” (Top right corner of APP)
- Exit ota successful.
I can’t search HS-OTA?
Make sure enable your phone Bluetooth and than scan again.