Device Firmware Upgrade using BLE not working

[asma]

Hello Everyone ,

I want to do application update over the air using BLE. I am using PCA100028 DK, SDK 7.2.0 and softdevice s110 7.1.0 . I am using the method given on this link developer.nordicsemi.com/.../a00066.html

In step 3 it is given to enable notification by writing 0100 i cant see anything on the DFU contol point charcteristic to write 0100 . i enabled the notification by clicking 3 downward arrows. then i followed step 4. the connection is lost with "GATT Error" and not with 'SERVER: Received Link Loss' and nothing sort of happening further i.e it is not advertising as "DFU Targ" . Is there anything i am missing .

Thanks & Regards

Asma

[asma]

Yes i tried it a lot many times by directly going to top right corner selecting a zip file start uploading sometimes it goes till 61% max and stop uploading , sometimes it do not start only for uploading comes back shows discovering services and connected to the same DFU Targ application.

What is exactly the purpose of DFU service control point characteristic if we have to directly do it through DFU of top right corner.