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No bootloader access after flashing SDK app

See original GitHub issue

Hi,

I accidently flashed the ble_app_blinky for the 52840 dongle from Nordic (pca10059) before I noticed that this repo with custom board header files exist.

The dongle is still working and the BLE example app could be accessed via Bluetooth (of course the LED doesn’t work, due to different PIN layout).

Anyways, pushing the button now, doesn’t reset the MDK dongle back into bootloader mode (it has no effect at all). The bootloader hasn’t been erased. I noticed that the Makefile for this board has CONFIG_GPIO_AS_PINRESET option disabled, which wasn’t the case for the image compiled for pca10059, but I’m not sure if this is related.

I hope you can help in this, would be to bad if I bricked the dongle after flashing the first app.

Issue Analytics

State:
Created 5 years ago
Comments:13 (7 by maintainers)

Top GitHub Comments

1reaction

mame82commented, Feb 21, 2019

Managed to re-flash the bootloader with IBDAP CMSIS.

Ref on Twitter https://twitter.com/mame82/status/1098516205730779136?s=19

Any progress on bootloader with GPIO reset PIN ?

1reaction

caizelincommented, Feb 14, 2019

Thanks for fast reply.

Haven’t a debugger probe yet, but will order one right away, if you could give me guidance on how to recover the bootloader.

Having an alternative PIN for bootloader entry would be awesome, btw

@mame82 I am here to help you! I will also update the section to wiki page.