diff --git a/src/flash/nor/stm32f2x.c b/src/flash/nor/stm32f2x.c
index 56fd9f6..0f8e07e 100644
--- a/src/flash/nor/stm32f2x.c
+++ b/src/flash/nor/stm32f2x.c
@@ -779,6 +779,7 @@ static int stm32x_probe(struct flash_bank *bank)
        case 0x423:
                max_flash_size_in_kb = 256;
                break;
+       case 0x431:
        case 0x433:
                max_flash_size_in_kb = 512;
                break;
@@ -912,6 +913,7 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)

        case 0x413:
        case 0x419:
+       case 0x431:
                device_str = "STM32F4xx";

                switch (rev_id) {