The maps application's primary function is to display the user's current location, which requires data from the device's location services. The Global Positioning System (GPS) is the core technology for providing this location data. The user's ability to run a speed test and achieve ~10Mbps confirms that the cellular data connection (e.g., LTE) is working correctly, which is used to download the map imagery. Since the internet connection is functional, the most probable cause for the maps application failing is that the GPS or location services setting on the phone has been disabled, preventing the app from determining its physical position.

A. Airplane mode: This setting disables all wireless radios, including cellular data. A successful speed test would not have been possible if this were enabled.

B. PRL: The Preferred Roaming List (PRL) is used by CDMA carriers to connect to the correct cell tower when roaming. A working data connection indicates this is not the issue.

D. LTE: Long-Term Evolution (LTE) is the cellular data technology. The successful speed test confirms that the LTE connection is active and performing as expected.

1. Google Android Developers Documentation. (n.d.). Location and sensors overview. In Android Developers Guides. Retrieved from https://developer.android.com/guide/topics/sensors/location.

Reference Detail: The "The user's location" section explains that location-aware applications

such as maps

depend on the device's location services

which use signals from GPS

Wi-Fi

and mobile networks to determine location. If these services are disabled

the application cannot function as intended.

2. Apple Developer Documentation. (n.d.). CLLocationManager. In Core Location. Retrieved from https://developer.apple.com/documentation/corelocation/cllocationmanager.

Reference Detail: This documentation for iOS developers specifies that the CLLocationManager object is the "central point for configuring the delivery of location- and heading-related events." It relies on hardware like the GPS chip. Disabling location services at the system level prevents applications from receiving this data.

3. Zandbergen

P. A. (2009). Accuracy of iPhone Locations: A Comparison of Assisted GPS

Wi-Fi and Cellular Positioning. Transactions in GIS

13(s1)

5–26. https://doi.org/10.1111/j.1467-9671.2009.01152.x

Reference Detail: Page 6

Section 2

"Location-Based Services on the iPhone

" explicitly states that mapping applications are a primary example of Location-Based Services (LBS) that rely on positioning technologies

with Assisted GPS (A-GPS) being the most accurate and fundamental component for outdoor positioning.