diff --git a/src/spiFlash.cpp b/src/spiFlash.cpp
index f4068d548..c89f0c19c 100644
--- a/src/spiFlash.cpp
+++ b/src/spiFlash.cpp
@@ -40,6 +40,7 @@
 #define FLASH_4SE      0x21
 /* read configuration register */
 #define FLASH_RDCR     0x35
+#define MX25L_RDCR     0x15
 /* write function register (at least ISSI) */
 #define FLASH_WRFR     0x42
 /* read function register (at least ISSI) */
@@ -632,7 +633,7 @@ void SPIFlash::display_status_reg(uint8_t reg)
 			printf("BPNV   : %d\n", ((reg >> 3) & 0x01));
 			printf("TBPROT : %d\n", ((reg >> 5) & 0x01));
 			if (dev_id == 0x0120)
-			printf("LC     : %d\n", ((reg >> 6) & 0x02));
+			printf("LC     : %d\n", ((reg >> 6) & 0x03));
 			break;
 		case 0x0160:
 			_spi->spi_put(FLASH_RDCR, NULL, &reg, 1);
@@ -658,6 +659,13 @@ void SPIFlash::display_status_reg(uint8_t reg)
 			printf("DUAL                     : %d\n", ((nv_reg >> 2) & 0x01));
 			/* 1:0: reserved */
 			break;
+		case 0xC220:
+			_spi->spi_put(MX25L_RDCR, NULL, &reg, 1);
+			printf("\nConfiguration Register\n");
+			printf("RDCR : %02x\n", reg);
+			printf("DC   : %d\n", ((reg >> 6) & 0x03));
+			printf("TB   : %d\n", ((reg >> 3) & 0x01));
+			printf("ODS  : %d\n", ((reg >> 0) & 0x07));
 	}
 }
 
@@ -993,7 +1001,10 @@ int8_t SPIFlash::get_tb()
 		_spi->spi_put(FLASH_RDFR, NULL, &status, 1);
 		break;
 	case CONFR:  // function register
-		_spi->spi_put(FLASH_RDCR, NULL, &status, 1);
+		if ((_jedec_id >> 8) == 0xC220)
+			_spi->spi_put(MX25L_RDCR, NULL, &status, 1);
+		else
+			_spi->spi_put(FLASH_RDCR, NULL, &status, 1);
 		break;
 	case NONER:  // no TB bit
 		return 0;
diff --git a/src/spiFlashdb.hpp b/src/spiFlashdb.hpp
index 9d4db6082..9fc1f2500 100644
--- a/src/spiFlashdb.hpp
+++ b/src/spiFlashdb.hpp
@@ -437,8 +437,8 @@ static std::map <uint32_t, flash_t> flash_list = {
 		.tb_register = CONFR,
 		.bp_len = 5,
 		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 5)},
-		.quad_register = NONER,
-		.quad_mask = 0,
+		.quad_register = STATR,
+		.quad_mask = (1 << 6),
 	}},
 	{0xc22018, {
 		/* https://www.macronix.com/Lists/Datasheet/Attachments/8934/MX25L12833F,%203V,%20128Mb,%20v1.0.pdf */
@@ -453,8 +453,8 @@ static std::map <uint32_t, flash_t> flash_list = {
 		.tb_register = CONFR,
 		.bp_len = 5,
 		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 5)},
-		.quad_register = NONER,
-		.quad_mask = 0,
+		.quad_register = STATR,
+		.quad_mask = (1 << 6),
 	}},
 	{0xc2201a, {
 		/* https://www.macronix.com/Lists/Datasheet/Attachments/8745/MX25L51245G,%203V,%20512Mb,%20v1.7.pdf */
@@ -469,8 +469,8 @@ static std::map <uint32_t, flash_t> flash_list = {
 		.tb_register = CONFR,
 		.bp_len = 5,
 		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 5)},
-		.quad_register = NONER,
-		.quad_mask = 0,
+		.quad_register = STATR,
+		.quad_mask = (1 << 6),
 	}},
 	{0xc22817, {
 		/* https://www.macronix.com/Lists/Datasheet/Attachments/8868/MX25R6435F,%20Wide%20Range,%2064Mb,%20v1.6.pdf */