diff --git a/README.md b/README.md
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@@ -279,7 +279,7 @@ lines through them.
 
 This module can be purchased [here](http://www.banggood.com/2_4G-CC2500-A7105-Flysky-Frsky-Devo-DSM2-Multiprotocol-TX-Module-With-Antenna-p-1048377.html). All the 4 RF modules are already implemented A7105, NRF24L01, CC2500 and CYRF6936. The board is also equiped with an antenna switcher which means only one antenna for all.
 
-To update the firmware of this module you have to solder a 6 pin header (top left) and use an USBASP like explained [below](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module#upload-the-code-using-isp-in-system-programming). 
+**It is highly recommended to update the firmware** of this board as it is distributed with a really old and bugged one. For this you have to solder a 6 pin header (top left) and use an USBASP like explained [below](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module#upload-the-code-using-isp-in-system-programming). 
 
 If you want to enable serial mode for er9x/ersky9x/Taranis/... and depending on your board revision, you have to do one of these modifications:
 - Add 2 resistors as shown here: ![Screenshot](http://static.rcgroups.net/forums/attachments/4/0/8/5/8/3/a8895038-170-4in1%20module.jpg)