User manual

ManualsBrandsGRAUPNER ManualsModel Making Remote ControlsMC-20 Hott RC console 2,4 GHz No. of channels: 12 Incl. receiver

Restoring the transmitter software

Program segment: “Restore”

If a transmitter ﬁrmware update should fail, or if the

transmitter software “hangs” – it may then be impos-

sible to switch the transmitter off using the “POWER”

switch – then you can reload the earlier ﬁrmware into

the transmitter using the “Restore” program segment.

If you ﬁnd that the screen(s) are still switched on even

though you have switched the transmitter off, then

please disconnect the transmitter battery connector,

wait a few seconds, and plug it in again.

1. Preparation

Connect the transmitter to the PC or laptop, and

start the “Firmware_Upgrade_grStudio_Ver-

X.X.exe” program as described under points 3 and

4 on page 50. (Version 2.1, which is the current

version at the time this manual was revised, starts

without being previously installed.)

2. Starting the “Restore” program segment

Now move to the “Transmitter” section and select

the “Emergency” entry under “Controller Menu”:

Note that the transmitter must be switched off!

Connect the USB lead to the PC or laptop, then

connect the other end to the USB socket under

the transmitter’s right-hand front cover.

3. Restoring the transmitter software

Press the “File Browse” button, and a program

window opens: search for the current ﬁrmware in

this window. As mentioned earlier, you will ﬁnd

this in the “Ofﬁcial Version \33112_…_33032_mx-

xx_mc-32 \ SD card \ Firmware” folder in the un-

packed ﬁle “HoTT_Software_VX”. The ﬁle match-

ing your particular transmitter starts with the

transmitter designation, e. g.: “mc-20_1vXXX_Eng-

lish.bin” or “mc-16_1vXXX_English.bin” (or “…Ger-

man.bin” or …).

Now initiate the update process by pressing the

“Download Start” button. Wait for a moment un-

til the status bar starts moving, and then switch

the transmitter on. The screen may now light up

without displaying any data, or – in the case of the

mc-20 HoTT transmitter – the bottom screen

may not light up at all; don’t worry – this is quite

normal.

If the following message …

… (“Boot signal receive failed”) appears before

you switch the transmitter on, restart the update

process by clicking on “Download Start”.

The transmitter must be switched on within the

prescribed period. When you do this, it can easi-

ly take a minute for the actual update process to

start:

The progress bar indicates that data are being

transferred correctly, and [Process Step] is dis-

played as “No 4, Firmware Update”.

The update process must not be interrupted, so

please ensure that the USB lead is making good

contact at both ends.

The ﬁrmware transfer is concluded when the pro-

gress bar reaches the right-hand end. The mes-

sage “Firmware update ended” indicates that the

data transfer was successful:

Now turn the transmitter on again by holding the

main switch pressed in for about one second. You

will hear the usual power-on melody, the transmit-

ter screen(s) come to life, and you see the Start

display “mc-… HoTT” and the current ﬁrmware

version.

Finally click on “OK”. Switch the transmitter off and

disconnect the USB lead connecting the transmit-

ter to the PC or laptop.