diff --git a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/flash_api.c b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/flash_api.c
index 3cc763d622..352529c057 100644
--- a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/flash_api.c
+++ b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/flash_api.c
@@ -293,7 +293,7 @@ status_t flexspi_nor_flash_page_program_ram(uint32_t address, const uint32_t *sr
         flashXfer.cmdType       = kFLEXSPI_Write;
         flashXfer.SeqNumber     = 2;
         flashXfer.seqIndex      = HYPERFLASH_CMD_LUT_SEQ_IDX_PAGEPROGRAM;
-        flashXfer.data          = (uint32_t *)(src + offset);
+        flashXfer.data          = (uint32_t *)((uint32_t)src + offset);
         flashXfer.dataSize      = BOARD_FLASH_PAGE_SIZE;
 
         status = FLEXSPI_TransferBlocking(FLEXSPI, &flashXfer);
@@ -509,7 +509,7 @@ status_t flexspi_nor_flash_page_program_ram(uint32_t address, const uint32_t *sr
         flashXfer.cmdType       = kFLEXSPI_Write;
         flashXfer.SeqNumber     = 1;
         flashXfer.seqIndex      = NOR_CMD_LUT_SEQ_IDX_PAGEPROGRAM_QUAD;
-        flashXfer.data          = (uint32_t *)(src + offset);
+        flashXfer.data          = (uint32_t *)((uint32_t)src + offset);
         flashXfer.dataSize      = BOARD_FLASH_PAGE_SIZE;
 
         status = FLEXSPI_TransferBlocking(FLEXSPI, &flashXfer);
diff --git a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_MIMXRT1050/TARGET_EVK/flash_defines.h b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_MIMXRT1050/TARGET_EVK/flash_defines.h
index 6f4db49211..656b80d7f5 100644
--- a/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_MIMXRT1050/TARGET_EVK/flash_defines.h
+++ b/targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_MIMXRT1050/TARGET_EVK/flash_defines.h
@@ -227,7 +227,7 @@ static uint32_t customLUT[CUSTOM_LUT_LENGTH] = {
 
     /* Erase Sector  */
     [4 * NOR_CMD_LUT_SEQ_IDX_ERASESECTOR] =
-    FLEXSPI_LUT_SEQ(kFLEXSPI_Command_SDR, kFLEXSPI_1PAD, 0xD7, kFLEXSPI_Command_RADDR_SDR, kFLEXSPI_1PAD, 0x18),
+    FLEXSPI_LUT_SEQ(kFLEXSPI_Command_SDR, kFLEXSPI_1PAD, 0x20, kFLEXSPI_Command_RADDR_SDR, kFLEXSPI_1PAD, 0x18),
 
     /* Page Program - single mode */
     [4 * NOR_CMD_LUT_SEQ_IDX_PAGEPROGRAM_SINGLE] =