Thank you for your reply.

I have installed SP2.33, and it seems to be running well on Nexus 5 (KK4.4.4).

Initially, I installed the apk file from catymag's post (Garmin Street Pilot v.2.33 Android 4.4.x)
Then I created the folders according to the screenshot posted in the same thread.
After that I copied all the necessary files into the sdcard/Garmin/ folder.
Result: SP2.33 was running, but experienced occasional FC.

After reading other posts, I came across mention of another set of files for the sdcard/Android/data/com.garmin.android.apps.gmobilext/ folder.
So, I copied the designated files into this folder as well

Now, it seems that SP2.33 is running better.

Could you please advise:
1) Did I do the installation correctly?
2) Are the files in the sdcard/Android/data/com.garmin.android.apps.gmobilext/ folder necessary?

As you can see, I'm still learning, and appreciate any assistance.
Thank you in advance.