Hello,
Im using the master control panel app from nordic to use the DFU.
I can only once upload the application over DFU on my nRF51422. Because after the upload is done and I connect again with my nRF51422 the Device Firmware Update Service is not listed anymore(Unknown Service). The DFU Icon to perfom the DFU is also not there.
The application cannot be the problem, because the problem is the same when I use the official Nordic ble_app_hrs_dfu application.
And Im pretty sure it should be possible to upload the application over dfu unlimited times.
I will show you what I do step by step.
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Load the SoftDevice S110 v.7.1 on my nRF51422(with nRFGo Studio)
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Load my application on my nRF51422(with nRFGo Studio)
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Load the bootloader on my nRF51422(with nRFGo Studio)
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Then I start the MasterControlPanel app. Now I see my nRF51422. But the name is DfuTarg. Then I click on: Device Firmware Update Service. It appears a new list and i choose: DFU Control Point.
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The Select Op Code is: 0x01 (Start DFU). I choose the application(0x04).
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Then it will be disconnected. I connect again and press on the dfu Icon. Choose again application. Then I select an application from nordic with dfu. The upload will be done with success.
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Now the new device name is the programm which one i upload over dfu. So far so good.
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But when I again connect with my device, there is no Device Firmware Update Service anymore. Also the dfu Icon is not there. So I cannot upload an other application anymore.
What Im doing wrong?
