diff --git a/flashchips.c b/flashchips.c
index 2212a95..331ea4d 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -4173,7 +4173,117 @@
 
 	{
 		.vendor		= "GigaDevice",
-		.name		= "GD25Q20",
+		.name		= "GD25LQ32",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25LQ32,
+		.total_size	= 4096,
+		.page_size	= 256,
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_OK_PREW,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 1024} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 128} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 64} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950},
+	},
+
+	{
+		.vendor		= "GigaDevice",
+		.name		= "GD25Q512",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25Q512,
+		.total_size	= 64,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 16} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 2} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {64 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "GigaDevice",
+		.name		= "GD25Q10",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25Q10,
+		.total_size	= 128,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 32} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 4} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 2} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {128 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {128 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "GigaDevice",
+		.name		= "GD25Q20(B)",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= GIGADEVICE_ID,
 		.model_id	= GIGADEVICE_GD25Q20,
@@ -4202,16 +4312,16 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
 	},
 
 	{
 		.vendor		= "GigaDevice",
-		.name		= "GD25Q40",
+		.name		= "GD25Q40(B)",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= GIGADEVICE_ID,
 		.model_id	= GIGADEVICE_GD25Q40,
@@ -4240,10 +4350,10 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -4279,16 +4389,16 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
 	},
 
 	{
 		.vendor		= "GigaDevice",
-		.name		= "GD25Q16",
+		.name		= "GD25Q16(B)",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= GIGADEVICE_ID,
 		.model_id	= GIGADEVICE_GD25Q16,
@@ -4318,10 +4428,10 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -4357,10 +4467,10 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -4396,10 +4506,10 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
 		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
 	},
 
@@ -4435,6 +4545,44 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
+		.printlock	= spi_prettyprint_status_register_default_bp4,
+		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
+		.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,
+		.model_id	= GIGADEVICE_GD25T80,
+		.total_size	= 1024,
+		.page_size	= 256,
+		/* OTP: 256B total; enter 0x3A */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {4 * 1024, 256} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {64 * 1024, 16} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 16} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
 		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
 		.unlock		= spi_disable_blockprotect,
 		.write		= spi_chip_write_256,
@@ -4443,46 +4591,6 @@
 	},
 
 	{
-		.vendor		= "GigaDevice",
-		.name		= "GD25LQ32",
-		.bustype	= BUS_SPI,
-		.manufacture_id	= GIGADEVICE_ID,
-		.model_id	= GIGADEVICE_GD25LQ32,
-		.total_size	= 4096,
-		.page_size	= 256,
-		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44 */
-		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
-		.tested		= TEST_OK_PREW,
-		.probe		= probe_spi_rdid,
-		.probe_timing	= TIMING_ZERO,
-		.block_erasers	=
-		{
-			{
-				.eraseblocks = { {4 * 1024, 1024} },
-				.block_erase = spi_block_erase_20,
-			}, {
-				.eraseblocks = { {32 * 1024, 128} },
-				.block_erase = spi_block_erase_52,
-			}, {
-				.eraseblocks = { {64 * 1024, 64} },
-				.block_erase = spi_block_erase_d8,
-			}, {
-				.eraseblocks = { {4 * 1024 * 1024, 1} },
-				.block_erase = spi_block_erase_60,
-			}, {
-				.eraseblocks = { {4 * 1024 * 1024, 1} },
-				.block_erase = spi_block_erase_c7,
-			}
-		},
-		.printlock	= spi_prettyprint_status_register_default_bp4,
-		.unlock		= spi_disable_blockprotect_bp4_srwd, /* TODO: 2nd status reg (read with 0x35) */
-		.unlock		= spi_disable_blockprotect,
-		.write		= spi_chip_write_256,
-		.read		= spi_chip_read,
-		.voltage	= {1700, 1950},
-	},
- 
-	{
 		.vendor		= "Hyundai",
 		.name		= "HY29F002T",
 		.bustype	= BUS_PARALLEL,
diff --git a/flashchips.h b/flashchips.h
index 22dde4f..17893d9 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -309,14 +309,22 @@
 #define FUJITSU_MBM29LV800TA	0xDA	/* Same as MBM29LV800TE */
 
 #define GIGADEVICE_ID		0xC8	/* GigaDevice */
-#define GIGADEVICE_GD25Q20	0x4012
-#define GIGADEVICE_GD25Q40	0x4013
+#define GIGADEVICE_GD25T80	0x3114
+#define GIGADEVICE_GD25Q512	0x4010
+#define GIGADEVICE_GD25Q10	0x4011
+#define GIGADEVICE_GD25Q20	0x4012	/* Same as GD25QB */
+#define GIGADEVICE_GD25Q40	0x4013	/* Same as GD25QB */
 #define GIGADEVICE_GD25Q80	0x4014	/* Same as GD25Q80B (which has OTP) */
 #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_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 HYUNDAI_ID		0xAD	/* Hyundai */
 #define HYUNDAI_HY29F400T	0x23	/* Same as HY29F400AT */