Cannot connect after update - light is flashing

Issue #96 resolved
Panagiota Kontou created an issue

Hi,

I am new to this, I recently purchased a Movesense ECG Monitor for research purposes and it was working fine after I used DFU and updated the sensor with “Movesense-ble_std_services_w_bootloader.zip”.

However, I was working with Matlab and was trying to get the ECG plot and I thought that maybe I need to do another update. Therefore, I updated to “Movesense-custom-gattsvc_app_w_bootloader.zip”. Ever since, I cannot connect to device neither from Matlab nor from Showcase app that I have installed on my Android phone and tablet. Additionally, the light on the sensor keeps flashing.

I’ve tried removing the battery and putting it back again and uploading another file in DFU but it keeps saying connecting and light is still flashing.

I was wondering if I can somehow restore to factory settings?

Please let me know if you have any other suggestions for me.

Comments (2)

  1. Petri Lipponen

    Flashing light (fast, about once a sec or so) indicates a boot loop. That is caused by either low battery or malfunctioning firmware.

    To fix the situation:

    1. make sure the battery is full enough
    2. Set sensor to DFU mode using the “DFU recovery mode” and re-flash the sensor either with Movesense Showcase app or nRF Connect (sensor shows up with name “DfuTarg”).

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