diff --git a/firmware/target/arm/imx233/sdmmc-imx233.c b/firmware/target/arm/imx233/sdmmc-imx233.c
index 5ebf0c7d3b..99dd817ec6 100644
--- a/firmware/target/arm/imx233/sdmmc-imx233.c
+++ b/firmware/target/arm/imx233/sdmmc-imx233.c
@@ -497,9 +497,6 @@ static int init_mmc_drive(int drive)
         window_start[drive] = 0;
         window_end[drive] = *sec_count;
     }
-    /* deselect card */
-    if(!send_cmd(drive, MMC_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
-        return -13;
 
     /* MMC always support CMD23 */
     support_set_block_count[drive] = false;
@@ -578,18 +575,6 @@ static int transfer_sectors(int drive, unsigned long start, int count, void *buf
         ret = -201;
         goto Lend;
     }
-    /* select card.
-     * NOTE: rely on SD_SELECT_CARD=MMC_SELECT_CARD */
-    if(!send_cmd(drive, SD_SELECT_CARD, SDMMC_RCA(drive), MCI_NO_RESP, NULL))
-    {
-        ret = -20;
-        goto Lend;
-    }
-    /* wait for TRAN state */
-    /* NOTE: rely on SD_TRAN=MMC_TRAN */
-    ret = wait_for_state(drive, SD_TRAN);
-    if(ret < 0)
-        goto Ldeselect;
 
     /**
      * NOTE: we need to make sure dma transfers are aligned. This is handled
@@ -646,13 +631,6 @@ static int transfer_sectors(int drive, unsigned long start, int count, void *buf
         else
             ret = __xfer_sectors(drive, start, count, buf, read);
     }
-    
-    /* deselect card */
-    Ldeselect:
-    /*  CMD7 w/rca =0 : deselects card & puts it in STBY state
-     * NOTE: rely on SD_DESELECT_CARD=MMC_DESELECT_CARD */
-    if(!send_cmd(drive, SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
-        ret = -23;
     Lend:
     /* update led status */
     led(false);