diff --git a/flashchips.c b/flashchips.c
index 541ba7a..e8d8690 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -10149,6 +10149,38 @@
 
 	{
 		.vendor		= "ST",
+		.name		= "M25PX80",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= ST_ID,
+		.model_id	= ST_M25PX80,
+		.total_size	= 1024,
+		.page_size	= 256,
+		/* OTP: 64B total; read 0x4B, write 0x42 */
+		.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_d8,
+			}, {
+				.eraseblocks = { {1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_default_bp2, /* bit5: T/B */
+		.unlock		= spi_disable_blockprotect_bp2_srwd, /* TODO: per 64kB sector lock registers */
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "ST",
 		.name		= "M25PX16",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= ST_ID,
@@ -10173,8 +10205,8 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp2, /* bit5: T/B */
+		.unlock		= spi_disable_blockprotect_bp2_srwd, /* TODO: per 64kB sector lock registers */
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
 	},
@@ -10187,7 +10219,8 @@
 		.model_id	= ST_M25PX32,
 		.total_size	= 4096,
 		.page_size	= 256,
-		.feature_bits	= FEATURE_WRSR_WREN,
+		/* OTP: 64B total; read 0x4B; write 0x42 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PRE,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -10204,8 +10237,8 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp2, /* bit5: T/B */
+		.unlock		= spi_disable_blockprotect_bp2_srwd, /* TODO: per 64kB sector lock registers */
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
 		.voltage	= {2700, 3600},
@@ -10219,7 +10252,8 @@
 		.model_id	= ST_M25PX64,
 		.total_size	= 8192,
 		.page_size	= 256,
-		.feature_bits	= FEATURE_WRSR_WREN,
+		/* OTP: 64B total; read 0x4B; write 0x42 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
 		.tested		= TEST_OK_PRE,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -10236,8 +10270,8 @@
 				.block_erase = spi_block_erase_c7,
 			}
 		},
-		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
-		.unlock		= spi_disable_blockprotect,
+		.printlock	= spi_prettyprint_status_register_default_bp2, /* bit5: T/B */
+		.unlock		= spi_disable_blockprotect_bp2_srwd, /* TODO: per 64kB sector lock registers */
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
 	},
diff --git a/flashchips.h b/flashchips.h
index 41bc143..a35b54f 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -627,6 +627,7 @@
 #define ST_M45PE40		0x4013
 #define ST_M45PE80		0x4014
 #define ST_M45PE16		0x4015
+#define ST_M25PX80		0x7114
 #define ST_M25PX16		0x7115
 #define ST_M25PX32		0x7116
 #define ST_M25PX64		0x7117