diff --git a/flight/targets/common/bootloader_updater/main.c b/flight/targets/common/bootloader_updater/main.c
index 1a480afa5..e4ea3f29b 100644
--- a/flight/targets/common/bootloader_updater/main.c
+++ b/flight/targets/common/bootloader_updater/main.c
@@ -78,9 +78,16 @@ int main()
     struct pios_board_info *new_board_info_blob = (struct pios_board_info *)((uint32_t)embedded_image_start + board_info_blob_offset);
 
     /* Compare the two board info blobs to make sure they're for the same HW revision */
-    if ((pios_board_info_blob.magic != new_board_info_blob->magic) ||
-        (pios_board_info_blob.board_type != new_board_info_blob->board_type) ||
-        (pios_board_info_blob.board_rev != new_board_info_blob->board_rev)) {
+    if ((pios_board_info_blob.magic != new_board_info_blob->magic)
+#if PIOS_USB_BOARD_PRODUCT_ID == USB_PRODUCT_ID_SPARKY2
+        || (((pios_board_info_blob.board_type != new_board_info_blob->board_type)
+        || (pios_board_info_blob.board_rev != new_board_info_blob->board_rev))
+        && ((pios_board_info_blob.board_type != 0x0b) || (pios_board_info_blob.board_rev != 0x01)))
+#else
+        || (pios_board_info_blob.board_type != new_board_info_blob->board_type)
+        || (pios_board_info_blob.board_rev != new_board_info_blob->board_rev)
+#endif
+    ) {
         error(PIOS_LED_HEARTBEAT, 2);
     }
 
diff --git a/ground/gcs/src/plugins/uploader/devicewidget.cpp b/ground/gcs/src/plugins/uploader/devicewidget.cpp
index 8f089939e..b4ac58a0a 100644
--- a/ground/gcs/src/plugins/uploader/devicewidget.cpp
+++ b/ground/gcs/src/plugins/uploader/devicewidget.cpp
@@ -374,7 +374,8 @@ void DeviceWidget::uploadFirmware()
         int firmwareBoard = ((quint16)(quint8)desc.at(12) << 8) + (quint16)(quint8)desc.at(13);
         if ((board == 0x0401 && firmwareBoard == 0x0402) ||
             (board == 0x0901 && firmwareBoard == 0x0902) || // L3GD20 revo supports Revolution firmware
-            (board == 0x0902 && firmwareBoard == 0x0903)) { // RevoMini1 supported by RevoMini2 firmware
+            (board == 0x0902 && firmwareBoard == 0x0903) || // RevoMini1 supported by RevoMini2 firmware
+            (board == 0x0b01 && firmwareBoard == 0x9201)) { // Sparky2 before and after TL BL compatibility change
             // These firmwares are designed to be backwards compatible
         } else if (firmwareBoard != board) {
             char buf[100];