s110 Bootloader for SDK9 not working?

[Raj]

Hi, In my project I am using nrf51822 device and I need to perform dfu operation,for that I am using soft device s110 and boot loader nRF51_SDK_9.0.0_2e23562\examples\dfu\bootloader, it not working on nrf51822 . if i use same softdevice and boot loader on nrf51422 DK board it is working. i don't known where the problem exactly , can any one help me? Can any one guide me which bootloader i need to use for nrf51822, s110 soft device ?

[Raj]

Hi Hung Bui, The chip laser marking is nRF51822QFAAG21417AU it is Rev.2 nRF51822-QFAA chipset. And we are using 16MHz crystal on the board. And board is designed by own.