diff --git a/Sonoff-RF-Bridge-433.md b/Sonoff-RF-Bridge-433.md
index 491537a0..caa30dce 100644
--- a/Sonoff-RF-Bridge-433.md
+++ b/Sonoff-RF-Bridge-433.md
@@ -34,7 +34,7 @@ See [Supported Commands](https://github.com/arendst/Sonoff-Tasmota/wiki/Commands
 
 <img src="https://github.com/arendst/arendst.github.io/blob/master/media/sonoff_bridge_rffw_upgrade.png" width="300" align="right" />
 
-By updating the firmware of the Rf chip (or co-processor, microcontroller) EFM8BB1 new possibilities become available. Starting with Tasmota v6.0.0a the Rf chip firmware upgrade is easily done using Web Gui Upgrade by File Upload. Tasmota supports the Original and Portisch firmware. For downloading the firmware press the green download button on the main page. If you download the firmware via click on file it will be a corrupted.
+By updating the firmware of the Rf chip a EFM8BB1 MCU new possibilities become available. Starting with Tasmota v6.0.0a the Rf chip firmware upgrade is easily done using Web Gui **Upgrade by File Upload**. Tasmota supports the Original and Portisch firmware. **For downloading the firmware press the green download button** on the main page. If you download the firmware via click on file it will be a corrupted.
 
 ## Flash-Process of Hardware R2 with Hardware preparation 
 _This chapter applies only for R2 and only if you want to use USB for powering the device during EFM flash process._