DFU failed in 2nd attempt

RE: DFU failed in 2nd attempt

Hung Bui — Tue, 15 Sep 2015 15:19:20 GMT

@Nomi: Could you capture a sniffer trace ? You can try to rollback to the version that it still worked for you and check what would go wrong. FYI we have a static passkey example here.

RE: DFU failed in 2nd attempt

Nomi — Tue, 15 Sep 2015 06:17:06 GMT

Now DFU is working fine but my uart does not accept my static passkey it just disconnects.

RE: DFU failed in 2nd attempt

Nomi — Tue, 15 Sep 2015 04:44:11 GMT

thanks and sorry for my mistake i will never do it again

RE: DFU failed in 2nd attempt

Hung Bui — Mon, 14 Sep 2015 14:13:50 GMT

@Nomi: next time if you want to update a file, please edit your question and add the file there. Don't post your comment to my answer as an answer. You should post it as a comment.

I had a look at your code. You has copied and added the DFU service into your account.

But when copying you also copied the macro operator : "#ifdef BLE_DFU_APP_SUPPORT". If you don't define "BLE_DFU_APP_SUPPORT" or don't add it into the "Define" text box in Project setting-> C/C++ tab. Then the compiler will ignore that code. And it will result that you don't have DFU service in your application.

Please have a look at the project setting in the \examples\ble_peripheral\ble_app_hrs\pca10028\s110_with_dfu 's project setting.

I suggest you to use Master Control Panel tool either on PC or on Android or Lightblue app on iOS to check what in your ATT table.

RE: DFU failed in 2nd attempt

Nomi — Mon, 14 Sep 2015 10:52:00 GMT

i used the following steps. nrf51422 sdk v8.0 and softdevice s110 on pca10028 the steps i used to do dfu are as 1)programed soft device s110_nrf51_8.0.0 using nrfgo studio 2)programed dfu_dual_bank_ble_s110_pca10028 an example from keil pack. 3)compiled my custom made application which is attached here DFU in password.zip 4)created zip file using nrfutil.exe using hex file generated by uisng this command nrf.exe dfu genpkg app.zip --application nrf51822_xxac.hex --application-version 0xffff --dev-revision 0xffff --dev-type 0xffff --sd-req 0x0064 5)uploaded zip file to my ios app nrftoolbox 6)opened DFU from nrftoolbox and uploded my application whick worked perfectly the problem is when i try to upload my applicatons 2nd version it does not connect to dfu and there comes an error Error on discovering service Message:required DFU service not available on peripheral reference link infocenter.nordicsemi.com/index.jsp

DFU in password.zip

RE: DFU failed in 2nd attempt

Hung Bui — Mon, 14 Sep 2015 10:37:24 GMT

How did you test the DFU the second time ? How did you enter bootloader mode ?

Did you add the DFU service as described here in to your application ? If you haven't added the service and the mechanism to jump to bootloader then it's normal that the DFU master complained that "required DFU service not available on peripheral"

There are 2 ways to enter bootloader mode, via a button press or via buttonless solution as described in the documentation.

RE: DFU failed in 2nd attempt

Nomi — Sat, 12 Sep 2015 05:53:23 GMT

i have changed IS_SRVC_CHANGED_CHARACT_PRESENT to 1 but the problem remains the same. and i dont have device to do sniffer trace.i think my application is over writing my dfu bootloader. but i dont know how to solve it.

RE: DFU failed in 2nd attempt

Hung Bui — Fri, 11 Sep 2015 13:34:26 GMT

Hi Nomi,

Please make sure you have set IS_SRVC_CHANGED_CHARACT_PRESENT = 1 in your application. I suspect that the attributable was cached. You should try to turn off and on Bluetooth after you change IS_SRVC_CHANGED_CHARACT_PRESENT.

If the issue remains, please provide a sniffer trace or any log you can find.

RE: DFU failed in 2nd attempt

Nomi — Fri, 11 Sep 2015 10:49:40 GMT

testing it on my ios app nrf toolbox