Техническая Спецификация для Graupner Hendheld RC 2.4 GHz No. of channels: 8 33116

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Restoring the transmitter’s firmware

„Emergency“ program
Restoring the 

If a transmitter firmware update should fail, or if the 
transmitter software “hangs” (in which case you may not 
be able to switch the transmitter off using the “POWER” 
switch), then you can restore the earlier firmware using 
the “Emergency” program segment.
If you switch the transmitter off, but the screen con-
tinues to be active, then please set the switch to the 
“POWER=OFF” position, unplug the transmitter battery, 
wait a few seconds, then plug it in again - but leave the 
POWER switch at the “OFF” position!

Now move to the “Controller Menu” and select the 
“Emergency” entry under the heading “Transmitter”:

Ensure that the transmitter is switched off! Connect 
the USB lead to the PC or laptop, and to the USB 
socket on the back of the transmitter.
Restoring the 

Press the “File Browse” button and search for the 
current firmware in the program window which now 
opens; as mentioned earlier, you will find this in the 
“Official Version \ 33112_…_33032_mx-xx_mc-32 \ 
SD card \ Firmware” folder of the unpacked “HoTT_
Software_VX” file. The file matching the 

mx-16 

transmitter is called: “mx-16_1vXXX_German.bin” (or 
“…English.bin”).
Now press the “Download Start” button to initiate the 
update process. Wait for a moment until the status 

bar starts to advance, and only then switch the trans-
mitter on. Don’t be surprised if the screen comes to 
life, but displays no information.
(If the progress bar reaches the right-hand end be-
fore the transmitter is switched on, you will have to 
click on the “Download Start” button again.)
After you switch the transmitter on, there may well 
be a wait lasting a minute before the process actual-
ly starts.

The progress bar indicates that the data transfer 
process is under way, and the screen displays [Proc-
ess Step] “No 4, Firmware downloading …”. 
Ensure that the USB lead is making reliable contact, 
and do not interrupt the update process.
The firmware transfer is finished when the progress 
bar reaches the right-hand end; you will then see the 
message “File Transfer Success” to indicate that the 
transfer has been successful.

The transmitter’s signal melody sounds, the trans-
mitter screen switches itself on with the start display 
“

mx-16 HoTT”, and the current firmware version is 

shown on the screen.
Finally click on “OK”. Switch the transmitter off, and 
disconnect the USB lead from the transmitter and the 
PC or laptop.