On 34xx we can enable ASR and DEM shading. Patching area in firmware 3.50 is at address D9750D:

D9750C: 00 01
D9750E: 00 00
D97510: CE 0E
D97512: 00 00
D97514: CE 0E
D97516: 00 00
D97518: CE 0E
D9751A: 00 00

For 3760 (B0 0E) I have patched like this:

D9750C: B0 0E - this is ASR
D9750E: 00 00
D97510: B0 0E
D97512: 00 00
D97514: B0 0E
D97516: 00 00
D97518: B0 0E
D9751A: 00 00

Now 3760@34xx shows suppor for 3D and DEM maps in GarminDevice.xml, but it doesn't work correctly. I get only DEM shading but no 3D terrain. There is no 3D buildings, only flat bases of 3D models appear.

ASR works after downloading *.srd files with WebUpdater. These are different files than for 37xx, here list form GarminDevice.xml
Code:
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