SDK12 secure bootloader dfu missing upate service

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 11:34:19 GMT

Issue 1: Missing DFU Service

Solution: You have to update the nRF Connect app, Secure DFU was added in the v4.4.x version and the current version is v4.8.1. You can see the features the latest version on Google Play, here is the link.

Issue 2: DFU fails after generating package with the following command (or similar) nrfutil pkg generate --hw-version 1 --sd-req 0x80 --application-version 4 --application app.hex --key-file key.pem app_dfu_package.zip

Solution: Incorrect hardware version used , it should be 51 for the nRF51822 and not 1 as shown in the nrfutil documentation.

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 10:53:26 GMT

Thank Bjørn.You help me a lot.

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 10:37:09 GMT

A signed image is not the same as an encrypted image. A signed firmware image contains a signature that is used to verify that the image was created by a trusted source. A DFU will only be performed if the firmware image has the correct signature. The firmware itself(i.e. the bin file) is not encrypted and can be read by anyone who has the image.

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 10:12:55 GMT

I just want to know more about the secure bootloader.You said the image was signed.So even someone has my dfu zip pack,and he unpakces the zip pack,but he can't use the image.It's the right?

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 09:58:18 GMT

You are correct, the current implementation of the bootloader in SDK v12.x.0 only supports signed images. If you want an unsecure version, then you will have to use the legacy bootloader from SDK v11.0.0 or older. May I ask why you do not want to use the secure bootloader?

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 09:39:18 GMT

Thanks Bjørn.I will try it again.And I also want to know sdk12 bootloader is only signed? If I want to dfu without signature,what should I do? I had read some documents about sdk12.It only mentions the init package with signature.The signature is for the firware image too?

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 09:18:00 GMT

Sorry for the typo, I have corrected it now, i.e. it should be 51 for the nRF51822 and the nRF51422.

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 09:15:00 GMT

51 for nRF51 or for nRF52?

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 09:08:31 GMT

Ok, but can you post the command with the options you used here on DevZone, e.g.

nrfutil pkg generate --hw-version 1 --sd-req 0x80 --application-version 4 --application app.hex --key-file key.pem app_dfu_package.zip

It could be that you have used the incorrect hardware version, which should be 51 for the nRF51822 and not 1 as shown in the nrfutil documentation.

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 08:51:54 GMT

Yes,I followed step-by-step guide.And I used the nrfutil command from this.

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 08:46:18 GMT

You followed this step-by-step guide right? Could you post the nrfutil command that you used to generate the package?

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 08:43:34 GMT

I had generated a firmware pakcage by following the guidance.DId I miss something?

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Tue, 03 Jan 2017 08:31:33 GMT

Are you using one the test images from the SDK or have you generated a firmware package yourself?

RE: SDK12 secure bootloader dfu missing upate service

james — Tue, 03 Jan 2017 07:46:55 GMT

Hi Bjorn, I had update the version.And I could use the dfu option.But the operation of dfu failed. (http://)

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Mon, 02 Jan 2017 09:37:30 GMT

You have to update the nRF Connect app, Secure DFU was added in the v4.4.x version and the current version is v4.8.1. You can see the features the latest version on Google Play, here is the link.

RE: SDK12 secure bootloader dfu missing upate service

james — Mon, 02 Jan 2017 08:47:02 GMT

version 4.1.3

RE: SDK12 secure bootloader dfu missing upate service

bjorn-spockeli — Mon, 02 Jan 2017 08:10:59 GMT

Which version of the nRF Connect app are you using?