Then, in Traffic manager of Phone Manager, enter the queried usage and set the Data
limit/Start day.
11.53 Why can I use only the 2G network?
Make sure you have correctly placed the SIM card in the 4G card tray, the 4G service has
been activated for your 4G phone, and the current area is covered by the 4G network.
11.54 What is Signal+?
The Signal+ provides the following functions:
1. When the signals in the edge areas of the network are weak, the Signal+ receives signals
in an all-round manner, thereby optimizing the network experience and call quality.
2. In a mobile network environment that is moving fast (for example, on a train), the
Signal+ improves the call success rate and reduces the network drop or call drop rate.
11.55 Where can I learn the Signal+ description?
Go to Settings > Wireless & networks > More > Link+-Signal+ to learn the specific
description.
11.56 What is Roaming+?
When you power on your phone for the first time or disable airplane mode in other countries,
the Roaming+ function can search for an available roaming network within the shortest period
of time.
11.57 Where can I learn the Roaming+ description?
Go to Settings > Wireless & networks > More > Link+-Roaming+ to learn the specific
description.
11.58 My phone displays the 3G or 2G symbol even after I
turn off mobile data. Will this use my mobile data
allowance?
This is completely normal and allows you to check whether your phone has 3G or 2G
coverage.
This will not use your mobile data allowance as mobile data is turned off.
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