DFU Bootloader SDK9.0.0: App does not start after update

[Mathias]

Hello,

I am switching my environment form SKD6.1 to SDK9.0.0. Finally I'd like to integrate a buttonless bootloader into my BLE application. I am using:

• nRF51822 QFAAG20 (0x0057)
• IAR Embedded Workbench
• s110_nrf51_8.0.0_softdevice.hex
• dfu_dual_bank_ble_s110_pca10028.ewp (chip changed to nrf51822)
• ble_app_hts (chip changed to nrf51822)

First I started to flash a sample app OTA, but here I faced a problem. After the application is flashed via DFU the app does not start up. Instead I still can receive the DFU advertising. It seems as there is something wrong with the app, because updating the Softdevice via DFU is working. Are there any other changes needed concerning the chip change? Thanks, Mathias

[syntroniks]

I never was able to get SD8 working on xxAA parts, so we switched to the latest silicon revision. I got my rework process swapping chips down to under 5 minutes with very high success rates.

[Neodym]

Hi, perhaps you find a solution here: devzone.nordicsemi.com/.../

Regards

[Mathias]

This answer did not help, thank you anyway. Does anybody had succes with the nrf51822 xxAA chip?

[Mathias]

I ordered the nRF51 DK with the nRF51422 Chip. I got the same behaviour. I guess there is a problem in the IAR Project. I had also to fix lots of compiler problems because the pathes were missing. Is there any IAR example project which is running out of the box?

[Stefan Birnir Sverrisson]

Hi

Im wondering if you are attempting to flash the app directly, which is not going to work. You should flash the softdevice + bootloader and then upload the app via DFU in order to start the application. However, you can flash the application directly as described on this thread. Further details are available on this thread.