diff --git a/src/flash/nor/nrf51.c b/src/flash/nor/nrf51.c
index f078cc3cd..28fa4d00c 100644
--- a/src/flash/nor/nrf51.c
+++ b/src/flash/nor/nrf51.c
@@ -192,6 +192,18 @@ static const struct nrf51_device_spec nrf51_known_devices_table[] = {
 		.build_code	= "G0",
 		.flash_size_kb	= 256,
 	},
+	{
+		.hwid		= 0x0057,
+		.variant	= "QFAA",
+		.build_code	= "G2",
+		.flash_size_kb	= 256,
+	},
+	{
+		.hwid		= 0x0058,
+		.variant	= "QFAA",
+		.build_code	= "G3",
+		.flash_size_kb	= 256,
+	},
 	{
 		.hwid		= 0x004C,
 		.variant	= "QFAB",
@@ -351,15 +363,6 @@ static const struct nrf51_device_spec nrf51_known_devices_table[] = {
 		.flash_size_kb	= 256,
 	},
 
-	/* mdbt40
-	   no idea if variant and build code are correct */
-	{
-		.hwid		= 0x0057,
-		.variant	= "QFAA",
-		.build_code	= "G2",
-		.flash_size_kb	= 256,
-	},
-
 	/* Some early nRF51-DK (PCA10028) & nRF51-Dongle (PCA10031) boards
 	   with built-in jlink seem to use engineering samples not listed
 	   in the nRF51 Series Compatibility Matrix V1.0. */