diff --git a/CHANGELOG.md b/CHANGELOG.md
index 623e06a75d..3eead5ce51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,7 +24,7 @@
 - `millis()`/`micros()` are now atomic to ensure monotonic values. Fixes [#916](https://github.com/spark/firmware/issues/916) and [#925](https://github.com/spark/firmware/issues/925)
 - availableForWrite() was reporting bytes available instead of bytes available for write [#1020](https://github.com/spark/firmware/pull/1020) and [#1017](https://github.com/spark/firmware/issues/1017)
 - `digitalRead()` interferes with `analogRead()` [#993](https://github.com/spark/firmware/issues/993)
-
+- [electron] reinstated OTA bootloader updates [#1002](https://github.com/spark/firmware/pull/1002)
 
 
 ## v0.5.1 (same as v0.5.1-rc.2)
diff --git a/hal/src/stm32f2xx/bootloader.cpp b/hal/src/stm32f2xx/bootloader.cpp
index 03a896eb07..3a06d265c2 100644
--- a/hal/src/stm32f2xx/bootloader.cpp
+++ b/hal/src/stm32f2xx/bootloader.cpp
@@ -9,8 +9,28 @@
 #if PLATFORM_ID==6 || PLATFORM_ID==8
 #define HAL_REPLACE_BOOTLOADER
 #endif
+#if PLATFORM_ID==6 || PLATFORM_ID==8 || PLATFORM_ID==10
+#define HAL_REPLACE_BOOTLOADER_OTA
+#endif
 #endif
 
+#ifdef HAL_REPLACE_BOOTLOADER_OTA
+bool bootloader_update(const void* bootloader_image, unsigned length)
+{
+    HAL_Bootloader_Lock(false);
+    bool result =  (FLASH_CopyMemory(FLASH_INTERNAL, (uint32_t)bootloader_image,
+        FLASH_INTERNAL, 0x8000000, length, MODULE_FUNCTION_BOOTLOADER,
+        MODULE_VERIFY_DESTINATION_IS_START_ADDRESS|MODULE_VERIFY_CRC|MODULE_VERIFY_FUNCTION));
+    HAL_Bootloader_Lock(true);
+    return result;
+}
+#else
+bool bootloader_update(const void*, unsigned)
+{
+    return false;
+}
+#endif // HAL_REPLACE_BOOTLOADER_OTA
+
 #ifdef HAL_REPLACE_BOOTLOADER
 
 /**
@@ -37,16 +57,6 @@ bool bootloader_requires_update()
     return requires_update;
 }
 
-bool bootloader_update(const void* bootloader_image, unsigned length)
-{
-    HAL_Bootloader_Lock(false);
-    bool result =  (FLASH_CopyMemory(FLASH_INTERNAL, (uint32_t)bootloader_image,
-        FLASH_INTERNAL, 0x8000000, length, MODULE_FUNCTION_BOOTLOADER,
-        MODULE_VERIFY_DESTINATION_IS_START_ADDRESS|MODULE_VERIFY_CRC|MODULE_VERIFY_FUNCTION));
-    HAL_Bootloader_Lock(true);
-    return result;
-}
-
 bool bootloader_update_if_needed()
 {
     bool updated = false;
@@ -56,8 +66,6 @@ bool bootloader_update_if_needed()
     return updated;
 }
 
-
-
 #else
 
 bool bootloader_requires_update()
@@ -65,11 +73,6 @@ bool bootloader_requires_update()
     return false;
 }
 
-bool bootloader_update(const void*, unsigned)
-{
-    return false;
-}
-
 bool bootloader_update_if_needed()
 {
     return false;