nRF52840 DFU cannot find service

RE: nRF52840 DFU cannot find service

Einar Thorsrud — Wed, 31 Jan 2024 10:27:16 GMT

Please make a new case for this new issue as it does not seem related to the original issue in this thread.

RE: nRF52840 DFU cannot find service

lin22 — Wed, 31 Jan 2024 09:00:45 GMT

Thank you, but I am currently encountering a new issue when I downloaded the connection upgrade file (path: us-bofu-1300956591.cos.na-ashburn.myqcloud.com/.../matter25q2.bin When the following code is called after

Let envelope=try McuMgrSuitEnvelope (from: URL)

An error was reported as follows

Error==The Data is not large enough to hold a SUIT Envelope/Digest

Let data=try Data (contentsOf: URL), which is the data that can be read=807749 bytes

RE: nRF52840 DFU cannot find service

Einar Thorsrud — Wed, 24 Jan 2024 11:41:28 GMT

Hi,

The log shows that "8D53DC1D-1DB7-4CD3-868B-8A527460AA84" is found, and this is for SMP server, so it seems you are not updating via the legacy or secure DFU prodocol used in the nRF5 SDK, but rather SMP? If so, you are using the wrong library. You should instaed be using IOS-nRF-Connect-Device-Manager.

RE: nRF52840 DFU cannot find service

lin22 — Tue, 23 Jan 2024 01:56:35 GMT

And do you have buttonless DFU, or alternatively, did you put the device in bootloader/DFU mode?

Use buttonless DFU。

Does DFU work if you use nRF Connect for mobile?

This can be used

RE: nRF52840 DFU cannot find service

Einar Thorsrud — Mon, 22 Jan 2024 13:42:12 GMT

Hi,

The log intidate that no nRF DFU service is found.

Which bootloader and DFU solution do you have on your device?
And do you have buttonless DFU, or alternatively, did you put the device in bootloader/DFU mode?
Does DFU work if you use nRF Connect for mobile?

RE: nRF52840 DFU cannot find service

lin22 — Mon, 22 Jan 2024 08:39:24 GMT

Did you connect to the correct target? It might be that the previous services were cached: toggle Bluetooth from iOS settings to clear cache. Also, ensure the device the Service Changed characteristic

Prompt message, tried, not working