RE: External OTA related issue (SPI + External Flash + OTA)

Kazi Afroza Sultana — Fri, 12 Jun 2026 16:20:30 GMT

Hello Rohit,

It's good that sample works after adding anomaly-58 workaround. I am not fully cleat though how it helps. Because this error Failed to open flash area ID 1 (image 0 slot 1): -19 is related to mcuboot partition.

''I have one question: Is it possible for the DFU service and DFU logo to be visible only when the user chooses to perform a firmware update? Otherwise, the DFU service and logo should remain hidden.''

I think this previous case (+) SMP (DFU) service enabling/disabling - can I set the default in kconfig? - Nordic Q&A - Nordic DevZone - Nordic DevZone is relevant to find the answer.

Thanks.

Kazi

RE: External OTA related issue (SPI + External Flash + OTA)

Rohit15 — Mon, 08 Jun 2026 11:59:40 GMT

Hello,

It is working after adding anomaly-58-workaround;.

I have one question: Is it possible for the DFU service and DFU logo to be visible only when the user chooses to perform a firmware update? Otherwise, the DFU service and logo should remain hidden.

Thanks.

Rohit

RE: External OTA related issue (SPI + External Flash + OTA)

Kazi Afroza Sultana — Tue, 02 Jun 2026 07:22:19 GMT

Hello,

Do you have sysbuild.conf?

You should have the following in the sysbuild.conf file

SB_CONFIG_BOOTLOADER_MCUBOOT=y
SB_CONFIG_PARTITION_MANAGER=y
SB_CONFIG_PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY=y
SB_CONFIG_PM_OVERRIDE_EXTERNAL_DRIVER_CHECK=y

The -19 (ENODEV) error at runtime almost certainly means the W25Q64 device node is not visible to MCUboot.

The size of the flash is also not correct in the overlay file. You can try the following overlay (sysbuild/mcuboot.overlay). The SPI configuration from the main dts file should also be included in the sysbuild mcuboot overlay.

&pinctrl {
    spi0_default: spi0_default {
        group1 {
            psels = <NRF_PSEL(SPIM_SCK,  0, 30)>,
                    <NRF_PSEL(SPIM_MOSI, 0, 29)>,
                    <NRF_PSEL(SPIM_MISO, 0, 27)>;
        };
    };
    spi0_sleep: spi0_sleep {
        group1 {
            psels = <NRF_PSEL(SPIM_SCK,  0, 30)>,
                    <NRF_PSEL(SPIM_MOSI, 0, 29)>,
                    <NRF_PSEL(SPIM_MISO, 0, 27)>;
            low-power-enable;
        };
    };
};

&spi0 {
    status = "okay";
    compatible = "nordic,nrf-spim";
    pinctrl-0 = <&spi0_default>;
    pinctrl-1 = <&spi0_sleep>;
    pinctrl-names = "default", "sleep";
    cs-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;

    w25q64: w25q64@0 {
        compatible = "jedec,spi-nor";
        reg = <0>;
        status = "okay";
        spi-max-frequency = <8000000>;
        jedec-id = [ef 40 17];
        size = <0x4000000>;  /* 64 Mbit in bits */
        sfdp-bfp = [
            e5 20 f1 ff  ff ff ff 03
            44 eb 08 6b  08 3b 04 bb
            ee ff ff ff  ff ff 00 ff
            ff ff 00 ff  0c 20 0f 52
            10 d8 00 ff  23 72 f5 00
            82 ed 04 cc  44 83 68 44
            30 b0 30 b0  f7 c4 d5 5c
            00 be 29 ff  f0 d0 ff ff
        ];
        has-dpd;
        t-enter-dpd = <3000>;
        t-exit-dpd  = <30000>;
    };
};

/ {
    chosen {
        nordic,pm-ext-flash = &w25q64;
    };
};

Sysbuild/mcuboot.conf

# ── Clock (nRF52832 custom board: no 32 kHz XTAL) ───────────────
CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

# ── Console (RTT only) ──────────────────────────────────────────
CONFIG_SERIAL=n
CONFIG_UART_CONSOLE=n
CONFIG_CONSOLE=y
CONFIG_RTT_CONSOLE=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG=y
CONFIG_LOG_BACKEND_RTT=y

# ── SPI NOR flash driver ─────────────────────────────────────────
CONFIG_GPIO=y
CONFIG_SPI=y
CONFIG_SPI_NOR=y
CONFIG_SPI_NOR_SFDP_DEVICETREE=y
CONFIG_FLASH=y
CONFIG_SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
CONFIG_NORDIC_QSPI_NOR=n
CONFIG_MULTITHREADING=y

# ── nRF52832 PAN-58 errata workaround ───────────────────────────
CONFIG_SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58=y

# ── MCUboot sectors ─────────────────────────────────────────────
CONFIG_BOOT_MAX_IMG_SECTORS=512

Try these and do a pristin build. You can check if the error still persists there.

Thanks.

Kazi