EN
R1234yf to system indicates how many grams of refrigerant have been added to the air conditioning sys
tems using the menu item Short selection or Free selection since the last reset (see date).
Vacuum time
Total
min.
STOP‐EXIT
Vacuum time indicates how long the vacuum pump has operated since the last reset (see date).
Service completed:
Number
STOP‐EXIT
Service completed displays the amount of service work performed using the A/C service unit since the
last reset (see date).
14.10 Updating the software via USB flash drive
The software is updated using a USB flash drive. The USB flash drive must be formatted with the FAT32 file sys
tem.
When updating the software, the following data is stored in the internal memory of the A/C service unit:
• The current software of the A/C service unit
• The current database with all the common vehicle types and corresponding filling quantities
You can update the software and the database separately.
1. Copy the current software to the USB flash drive.
2. Insert the USB flash drive into the USB port.
3. Switch on the device.
The A/C service unit scans the USB flash drive for a later version. If the software on the USB flash drive is more
uptodate, the following menu is displayed:
New firmware release
found
ENTER upgrade STOP EXIT
AS5k0058
If the database on the USB flash drive is more uptodate, the following menu is displayed:
New database release
found
ENTER upgrade STOP EXIT
ldyf1701
The current version is displayed in black on the bottom line.
4. Press
ENTER
The A/C service unit shows the progress of the update:
36
to update the software or database.
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