Hi,
I encountered a problem when I was doing an air upgrade.I use nrfconnect.apk to make an air upgrade, BootLoader will encounter an exception at about 7% when receiving new firmware.
Development environment:
- sdk: 17.0.2
- softdevice: s140_nrf52_7.2.0_softdevice
- hardware: Customer board(nRF 52833)
- app project: examples\ble_peripheral\ble_app_uart\pca10100\s140\arm5_no_packs\ble_app_uart_pca10100_s140.uvprojx
- bootloader project: examples\dfu\secure_bootloader\pca10100_s140_ble\arm5_no_packs\secure_bootloader_ble_s140_pca10100.uvprojx
I used the captain tool to get this error.

nRFConnect.apk Show this error

Best blessings,
ching