Ble resets automatically

[PKSHER]

Hello.

This is becoming a very serious issue for me. When I program the nrf52840 dongle and when I switches on the power, it automatically goes into bootloader mode, means red LED starts blinking and I need to program the dongle again.

Regards,

[PKSHER]

I followed this example which is based on nordic SDK example.

https://github.com/nicslabdev/NRF52840-Beacon_Scanner

I added an app_timer in the example to send the data and changed other things. But I am having problems in the code as well. I have started a separate question regarding this. If you want to follow, here is the link. https://devzone.nordicsemi.com/f/nordic-q-a/50592/storing-adv-data. The engineer is really helping me out on this.

But I think this reset is a different issue.

The user guide I followed is https://infocenter.nordicsemi.com/pdf/nRF52840_Dongle_User_Guide_v1.0.pdf.

I want to use dongle in a product which has a switch to on and off power, and if this happens, it will be a problem. I cant program dongle again and again or when if has been deployed.

Regards,

[Amanda Hsieh]

Hi, 

Could you try to program the following images (s140_nrf52_6.1.0_softdevice.hex and ble_app_blinky_pca10059_s140.hex ) to see have the same sympton or not?

nRF5_SDK_15.2.0_9412b96\components\softdevice\s140\hex\s140_nrf52_6.1.0_softdevice.hex

nRF5_SDK\examples\ble_peripheral\ble_app_blinky\hex\ble_app_blinky_pca10059_s140.hex 

Also, check the status of the RESET button is in or out. 

-Amanda H. 

[PKSHER]

ok i will do as you have said. I have SDK 15.3, so I will use s140_nrf52_6.1.1_softdevice.hex with ble_app_blinky_pca10059_s140.hex.