I'm trying to enable DFU on our device but am getting a lot of issues.
I used Device Manager to upload app_update.bin and it worked. If I use Flutter example to upload firmware I need to use dfu_application.zip. This is where issues arise. Firmware is uploaded but then it fails to update.
If I go to the Device Manager app I can see that Image Slot 0-1 is taken by new firmware but I can't confirm it or erase it. I get no free slot(9) error. Now I cant upload new firmware using Device manager as it is also giving me no free slot(9) error when uploading new firmware.
external_flash (0x800000 - 8192kB):
+-----------------------------------------------+
| 0x0: mcuboot_secondary (0xf0000 - 960kB) |
| 0xf0000: littlefs_storage (0x710000 - 7232kB) |
| 0x800000: external_flash (0x0 - 0B) |
+-----------------------------------------------+
flash_primary (0x100000 - 1024kB):
+--------------------------------------------------+
| 0x0: mcuboot (0x15000 - 84kB) |
| 0x15000: EMPTY_0 (0x3000 - 12kB) |
+---0x18000: mcuboot_primary (0xe8000 - 928kB)-----+
| 0x18000: mcuboot_pad (0x200 - 512B) |
+---0x18200: mcuboot_primary_app (0xe7e00 - 927kB)-+
| 0x18200: app (0xe7e00 - 927kB) |
+--------------------------------------------------+
otp (0x2fc - 764B):
+------------------------------+
| 0xff8100: otp (0x2fc - 764B) |
+------------------------------+
sram_primary (0x80000 - 512kB):
+-----------------------------------------------+
| 0x20000000: pcd_sram (0x2000 - 8kB) |
| 0x20002000: sram_primary (0x6e000 - 440kB) |
| 0x20070000: rpmsg_nrf53_sram (0x10000 - 64kB) |
+-----------------------------------------------+
CPUNET flash_primary (0x40000 - 256kB):
+--------------------------------------------+
+---0x1000000: b0n_container (0x8800 - 34kB)-+
| 0x1000000: b0n (0x8580 - 33kB) |
| 0x1008580: provision (0x280 - 640B) |
+---0x1008800: app (0x37800 - 222kB)---------+
| 0x1008800: hci_ipc (0x37800 - 222kB) |
+--------------------------------------------+
CPUNET sram_primary (0x10000 - 64kB):
+-------------------------------------------+
| 0x21000000: sram_primary (0x10000 - 64kB) |
+-------------------------------------------+
