what are the steps to implement Firmware update (DFU) from server or cloud ?

[Neha]

I can upload zip file from app, but i need to download it from server and upgrade the application

[Neha]

hey sigurd, Sorry for late reply

 Which smartphone(app) you are telling ? is it nrfconnect app or other.

[Sigurd]

Neha said:

is it nrfconnect app or other.

 nRFConnect, but also nRF-Toolbox supports DFU. See this link.

[lvh831]

Hi Sigurd,

Is there a sample code for iOS for the method you suggested?
I'd been looking at Amazon RTOS but it doesn't like they don't support OTA for nRF52 yet.

Ideally I need a way to have nRF52 <---> BLE <---> iOS <---TCP/IP--> Internet. Is there a sample code that enable me to do this without full blown AWS IoT? 

[Sigurd]

We don't provide a sample for the "iOS <---TCP/IP--> Internet" part. This depends on your mobile-app, and how and where you want to host the DFU image.