How to enable notifications on a characteristic with nRF Connect iOS app?

[Andy]

Hello,

I don't know how to enable the notifications for a characteristic in the nRF Connect app for iOS. I have the latest version and I tried all the buttons but none of them seem to enable them.

I can enable the notifications with the LightBlue app by pressing the "Listen for notifications" button, but with the nRF Connect app I just can't. So I know for a fact that it's not that my firmware is not listening.

This is what I have in the app:

None of those arrow buttons enable the notifications/indications for that characteristic. It's the NRF Secure DFU Service by the way. I need to enable the indications in order to write 1 to that characteristic and go into bootloader mode. The only way I'm able to do that now is with the LightBlue app and I'm tired of switching apps just to go into bootloader mode. Please help!

This is how I see it in LightBlue:

[Mostafa Berg]

Strange, I can seem to only see them when loading them via cURL but not through the website, will verify internally, but I can see the images.

So what happens exactly when you press the Enable notifications button "Up + Down Arrow Icon", and then writing 0x01 to the charcateristic by pressing the "Up arrow icon" ?

what is the exact value you write and what is the response that you seem form the peripheral ?