Board again starts in Boot mode

[Pavan kumar]

Hii all, I am trying to work with dfu, I developing an application that works with dfu, when I flash the softdevice and bootloader the device advertising as dfutarg and then I programming my application it works well, and if I try to update the firmware by dfu(buttonless dfu) its working fine, but when I remove the battery and put it again the device restarts in boot mode not in application mode. Can any one please help me in this regards

I am using the s110 softdevice, and SDK7.0.0 and the board is nrf51822 with 256kb flash and 16kb RAM

Thanks in advance

[caram5555]

Hi Pavan kumar. Did you checked dfu hold status key(BOOTLOADER_BUTTON) is pressed? When this key is pressed it still remains in dfu status. Or please check code region 0 is valid.

A member of Mobilian (http://www.mobilian.biz)

[Pavan kumar]

Yes That is what the problem exactly in the custom board initially the BOOTLOADER_BUTTON is pulled low