Service Bulletin 2048
Page 5-10
April 24, 2020
Revision B
Part One: Loader Card Creation
1. Refer to Section 7.2.1 of the GPS 175 TSO Installation Manual (190-02207-00), GNX 375 TSO
Installation manual (190-02207-04), or GNC 355 TSO Installation manual (190-02488-00) for
instructions to create a software loader card.
2. Proceed to Part Two.
Part Two: GPS 175/GNX 375/GNC 355 Software Installation
1. Connect the aircraft to ground power.
NOTE
Take steps to prevent accidental power disruptions to the unit during the software loading
process.
NOTE
It is highly recommended to record the configuration settings before proceeding.
2. Put the 3.10 loader card into the card slot on the right side of the GPS 175/GNX 375/GNC 355.
3. Push and hold the inner knob, and push the power key to enter Configuration Mode.
4. Release the knob when the Configuration Mode page displays.
5. Touch
Updates
.
Figure 1. GPS 175 Configuration Mode
Figure 2. GNX 375 Configuration Mode
Figure 3. GNC 355 Configuration Mode
