diff --git a/flashchips.c b/flashchips.c
index c60514b..238389b 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -6216,6 +6216,47 @@
 
 	{
 		.vendor		= "GigaDevice",
+		.name		= "GD25Q128C",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25Q128,
+		.total_size	= 16384,
+		.page_size	= 256,
+		/* OTP: 1536B total; read 0x48; write 0x42, erase 0x44 */
+		/* QPI: enable 0x38, disable 0xFF */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 4096} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 512} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 256} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {16 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {16 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		/* TODO: 2nd status reg (read 0x35, write 0x31) and 3rd status reg (read 0x15, write 0x11) */
+		.printlock	= spi_prettyprint_status_register_bp4_srwd,
+		.unlock		= spi_disable_blockprotect_bp4_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "GigaDevice",
 		.name		= "GD25T80",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= GIGADEVICE_ID,
@@ -6253,6 +6294,46 @@
 	},
 
 	{
+		.vendor		= "GigaDevice",
+		.name		= "GD25VQ41B",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25VQ41B,
+		.total_size	= 512,
+		.page_size	= 256,
+		/* OTP: 1536B total; read 0x48, write 0x42, erase 0x44 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_QPI,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers  =
+		{
+		  {
+			.eraseblocks = { { 4 * 1024, 128} },
+			.block_erase = spi_block_erase_20,
+		  }, {
+			.eraseblocks = { { 32 * 1024, 16} },
+			.block_erase = spi_block_erase_52,
+		  }, {
+			.eraseblocks = { { 64 * 1024, 8} },
+			.block_erase = spi_block_erase_d8,
+		  }, {
+			.eraseblocks = { {512 * 1024, 1} },
+			.block_erase = spi_block_erase_60,
+		  }, {
+			.eraseblocks = { {512 * 1024, 1} },
+			.block_erase = spi_block_erase_c7,
+		  }
+		},
+		/* TODO: 2nd Status Register; read 0x35 */
+		.printlock	= spi_prettyprint_status_register_bp4_srwd,
+		.unlock		= spi_disable_blockprotect_bp4_srwd,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2300, 3600},
+	},
+
+	{
 		.vendor		= "Hyundai",
 		.name		= "HY29F002T",
 		.bustype	= BUS_PARALLEL,
diff --git a/flashchips.h b/flashchips.h
index 74c44a0..a109e94 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -371,13 +371,14 @@
 #define GIGADEVICE_GD25Q16	0x4015	/* Same as GD25Q16B (which has OTP) */
 #define GIGADEVICE_GD25Q32	0x4016	/* Same as GD25Q32B */
 #define GIGADEVICE_GD25Q64	0x4017	/* Same as GD25Q64B */
-#define GIGADEVICE_GD25Q128	0x4018	/* GD25Q128B only? */
+#define GIGADEVICE_GD25Q128	0x4018	/* GD25Q128B and GD25Q128C only, can be distinguished by SFDP */
 #define GIGADEVICE_GD25LQ40	0x6013
 #define GIGADEVICE_GD25LQ80	0x6014
 #define GIGADEVICE_GD25LQ16	0x6015
 #define GIGADEVICE_GD25LQ32	0x6016
 #define GIGADEVICE_GD25LQ64	0x6017	/* Same as GD25LQ64B (which is faster) */
 #define GIGADEVICE_GD25LQ128	0x6018
+#define GIGADEVICE_GD25VQ41B	0x4213
 #define GIGADEVICE_GD29GL064CAB	0x7E0601
 
 #define HYUNDAI_ID		0xAD	/* Hyundai */