Keil SDK13 BLE OTA bootloader_secure_ble bootloader

[tpwang]

Keil SDK13 BLE OTA upgrade failure causes the device to become unbootable, requiring re-flashing. How can this be resolved? We are using the bootloader_secure_ble bootloader. Does it support dual-bank OTA? Could you provide a reference sample?

[tpwang]

私钥生成命令：nrfutil keys generate priv.pem （priv.pem就是私钥） 公钥生成命令：nrfutil keys display --key pk --format code priv.pem --out_file dfu_public_key.c （dfu_public_key.c就是公钥） .\tools\nrfutil settings generate --family NRF52 --application app.hex --application-version 1 --bootloader-version 1 --bl-settings-version 2 settings.hex .\tools\mergehex --merge bootloader.hex settings.hex --output bl_temp.hex .\tools\mergehex --merge s132_nrf52_4.2.0_softdevice.hex bootloader.hex app.hex --output bl_temp.hex .\tools\mergehex --merge bl_temp.hex app.hex s132_nrf52_4.2.0_softdevice.hex --output whole.hex .\tools\mergehex --merge bl_temp.hex settings.hex --output whole.hex .\tools\nrfutil pkg generate --application app.hex --application-version 3 --hw-version 52 --sd-req 0x101 --key-file Template_key.pem SDK13_app_s132.zip