Smartwatch research (Opensource, P8, BLE, bangle.js, Pinetime, espruino, .

(entry in contruction, check other Smartwatch entries)

 

Tools and software

From a mobile Phone

   With LightBlue(Android):  

     or nRFConnect

 

From  Windows computer
   or BluetoothLE Explorer or Bluetooth LE Lab(Windows):
   or nRFConnect

Configure
  Windows10. Other Devices (privacy)

Checking Model (i.e P8a)

   or BluetoothLE Explorer or Bluetooth LE Lab(Windows):

Identify  Device Information:
Hardware Revision (UTF8-String) : A130PW2.0
Software Revision (UTF8-String) :MOY-TFK5-1.7.7

Heart Rate Measurement (it readable, so activate from watch)
(HEX) : A130PW2.0
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Avoid BLE issues

Error reading the file

when using NrfToolbox you can select the app to pick the file (a file manager)

ES explorer has 2 modes, so if one fails the other can work.

"DFU File ...not found"

turn off other bluetooth devices (specially if they were pair before)

use a different phone that you have never pair

companion apps like d6notification or gadgetbridge can try to connect even if they seem closed

Error GATT ERROR  a

       keep trying,

       disable/enable phone's Bluetooth

       kill daflasher app

       uninstall BLE apps (d6notification)
       turn off phone or
       try "nRF Connect" app as an alternative to Daflasher, as it also can flash a DFU