Hello,
I am using Nrf51822.
I am using sd_110/application/bootloader, etc. in SDK_10.0 without problem.
Recently, migration to SDK_12.3 / sd_130 is in progress to add ble central function.
In SDK_12.3 / sd_130 environment, it operates as a softdevice and an application without bootloader.
When the bootloader is merged, it doesn’t operate after DFU.
Bootloader refers to single_bank_serial_s110 / single_bank_serial_s130 of nRF51_SDK_10.0.0_dc26b5e, and nothing has changed except for reference files in the existing S110.
I don't know why it doesn't work because there are no changes such as address map.
The question is broad, but what should I check?
Thanks.