diff --git a/Flashing-the-Production-PCB-via-USB-serial-port.md b/Flashing-the-Production-PCB-via-USB-serial-port.md
index d3c7a56..e82f2ce 100644
--- a/Flashing-the-Production-PCB-via-USB-serial-port.md
+++ b/Flashing-the-Production-PCB-via-USB-serial-port.md
@@ -23,9 +23,10 @@ If a serial debug session is active, the following message should appear:
 rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2)) 
 waiting for download
 ```
-**Bootloading will fail if the serial debug session remains active.  
+**IMPORTANT**  
+Bootloading will fail if the serial debug session remains active.  
 ESPtool will be unable to use the occupied serial port.  
-Ensure the serial debug session is closed before the upload takes place**
+Ensure the serial debug session is closed before the upload takes place.
 
 Once uploading is completed, you finally need to press and release the EN button to reboot the ESP32 processor.  
 The BOOT switch should not be operated at this time.
\ No newline at end of file