Brainboxes BL-819 User Manual

 

 

 

 

 

 
This feature is only available from firmware version 3.0 onwards.  
 

 

 

Upgrade DFU (Device Firmware Upgrade) is an 
option to be taken seriously as it has the potential 
to leave your product in an unusable state.  
 
The upgrade is a 2 stage process, the menu 
option must be used in conjunction with the 
upgrade software supplied on the accompanying 
CD ROM which requires a Microsoft Windows 95 
or later operating system 
 

 

 

Selecting option 5 from the main menu displays 
the following Firmware Upgrade menu.  
 
To activate this feature, you must type the word 
“PROCEED” exactly. This command is case 
sensitive.  
 
Typing “PROCEED” correctly will cause the 
product to enter its firmware upgrade mode with 
immediate affect. 
 
 
 

 

Failure to enter “PROCEED” correctly will cause 
the menu option to abort and you will be able to 
continue navigating the menu in the normal 
fashion. 
 
In some (but not all) instances you will see some 
“odd” characters displayed as shown above. This 
is normal behaviour and indicates the product is 
ready to receive its firmware upgrade commands 
from the supporting software. 
 

 
At this point, you will no longer be able to interact with the menu, nor will you be able to use the product as 
advertised. ONLY the supporting software can restore this setting. Neither a power reset nor any combination of 
presses of the reset button will restore normal operation to the product. It is now permanently in a state to upgrade 
the firmware. 
 

 

IMPORTANT, in order for the upgrade application to connect to your product and perform the 
upgrade, you must ensure you disconnect your terminal application from the COM port. In 
HyperTerminal, this is done either by closing the application down, or Clicking the “disconnect” 
toolbar Icon 

 
Now run the “upgrade” application documented in the section below for upgrading. 
 

Manual for BL-819 / 830 

© Copyright Brainboxes Limited 2005 

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