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GPS location accuracy advisory

 

You may have recently been contacted by Lucky Mobile regarding potential impacts to location accuracy during 911 calls on your device.

This is due to the GPS Week Number Rollover (WNRO) event, which will occur as early as April 6th, 2019. This is a global GPS issue and not restricted to the wireless industry or 9-1-1. The Week Number Rollover refers to the limitation of values in the GPS message format counter. After the counter reaches the 1024th week, it will reset to zero, which is what will occur as early as April 6th. Properly configured devices should not be affected. However, some hardware chipsets incorrectly handle the April 6, 2019 rollover. Because GPS Time is used for user location determination, an improperly configured device may result in improper location information associated with 9-1-1 calls.

In addition to location accuracy during 9-1-1 calls, device applications that depend on GPS location may also be impacted.

Most devices are properly configured. However, the following devices are known to Lucky Mobile to be affected beginning April 6th. Certain devices have a software patch available to correct the issue. If no patch is available, you may contact us or visit a Lucky Mobile store to explore options. The following list provides known impacts and possible resolution for known affected devices, if they were purchased from Lucky Mobile:

Device name Details
Alcatel 1

The latest software for this device will provide a fix for WNRO – please ensure you are running the latest software.

Alcatel A50

To explore your options please contact us, or visit a Lucky Mobile store

Alcatel ONETOUCH Pixi3

To explore your options please contact us, or visit a Lucky Mobile store

Alcatel ONETOUCH Idol X

To explore your options please contact us, or visit a Lucky Mobile store

Alcatel ONETOUCH Idol Mini
LG Optimus L5 II

To explore your options please contact us, or visit a Lucky Mobile store

Sonim XP5560 Bolt 2

To explore your options please contact us, or visit a Lucky Mobile store

Sonim XP5560 Bolt 2 IS
Sonim XP5520 Bolt
Sony Xperia XA

To explore your options please contact us, or visit a Lucky Mobile store