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NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

Hello Nordic Devzone fellowes

I tried DFU with NRF 52 DK board with 'PC-BLE-DRIVER-JS' dfu.js test code

When the firmware .zip file is 128 KB the speed of transftering the file is 600 Bytes / sec

However When I try with NRF connect App on my Android phone (Sony Xperia XZ premium)

it has 1.6 KB / sec Which is way faster than when I tried with NTF52 DK board.

If anyone know why there are difference please let me know

and is this something I can improve by modifying Source code of 'pc-ble-driver-js'??

Thank You.

Parents Reply
  • I am not sure how to use BLE sniffer application, seems like its not an executable file.

    However When I try NRF connect on PC for DFU, it transfer the same file with 1.6 KB/sec speed.

    I am pretty sure NRF connect is using same javascript code from 'pc-ble-driver-js' dfu.js code for DFU.

    Why when I try DFU with 'pc-ble-driver-js', it transfer a same file much slower (600 bytes/sec) ?

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