diff --git a/flight/pios/common/pios_flash_eeprom.c b/flight/pios/common/pios_flash_eeprom.c
index 2a31a81ef..69389cdb4 100644
--- a/flight/pios/common/pios_flash_eeprom.c
+++ b/flight/pios/common/pios_flash_eeprom.c
@@ -32,6 +32,10 @@
 
 #ifdef PIOS_INCLUDE_FLASH_EEPROM
 
+#ifndef PIOS_EEPROM_EMULATED_SECTOR_SIZE
+#define PIOS_EEPROM_EMULATED_SECTOR_SIZE 256
+#endif
+
 #include <pios_flash_eeprom.h>
 #include <pios_math.h>
 enum pios_eeprom_dev_magic {
@@ -393,8 +397,24 @@ static int32_t PIOS_Flash_EEPROM_EraseSector(uintptr_t flash_id, uint32_t addr)
     const uint8_t buf[] = {
         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     };
-    return PIOS_Flash_EEPROM_Write(flash_dev, addr, buf, sizeof(buf));
+    uint32_t current = addr;
+    while (current - addr < PIOS_EEPROM_EMULATED_SECTOR_SIZE) {
+        uint32_t erase_size = (MIN(sizeof(buf), flash_dev->cfg->page_len));
+        erase_size = MIN(erase_size, (PIOS_EEPROM_EMULATED_SECTOR_SIZE - current + addr));
+        int32_t res = PIOS_Flash_EEPROM_Write(flash_dev, current, buf, erase_size);
+        if (!res) {
+            return res;
+        }
+        current += erase_size;
+    }
+    return 0;
 }
 
 /**