Lenovo s90 t why the mobile 4G signal is always not full

Hello. Sorry for the confusion.

The signal is not only related to the mobile phone itself, but also related to the network coverage of the surrounding operators, so it is recommended to change to a different environment for comparison.

According to my personal understanding, the situation that mobile 4G is not up to standard, it is generally based on 2G base stations to install equipment and upgrade to 4G signals, which will be weaker than traditional 2G signals, and the coverage may not be so large. In fact, the number of signal grids, if it does not affect the normal call, networking and other functions, there is no problem, you can use it with confidence.

If your normal use has been affected, we recommend that you perform the following steps to perform a simple troubleshooting:

1.Whether the surrounding network environment is normal, it is recommended that you go to other regions for comparison, or make a simple comparison with nearby users.

2.It is recommended that you change the SIM card for comparison, if the individual SIM card appears, it is recommended that you contact the operator for further processing;

3.If it occurs recently, it is recommended that you back up the fuselage data and try to restore factory settings.

4.If the above operations cannot be improved, please send them to the repair site for testing and processing in time.

You can find the repair site information.

Lenovo S90-T mobile phone China Mobile 4G version itself will not have a poor signal for no reason, the signal difference is determined by the local signal coverage, and the user's location.

In the process of signal propagation, it will be affected by various factors such as terrain, landform, high-rise buildings, etc., and if the user's location is a relatively closed place, the signal will be affected. It is also possible that the local area itself has poor signal coverage.

You can restart your phone, or change the SIM card to a family friend's phone to try again, and see if the signal of other mobile users around you is working. If the signal problem is still not resolved, please contact the local customer service for consultation.

Hello. We apologize for the inconvenience.

Lenovo S90-T mobile phone supports mobile 4G network, so it is recommended that you first confirm whether your SIM card is a mobile 4G card, whether it is used in card slot 1, whether it is in the system settings - mobile network - the network mode is preferred as 4G priority, and whether there is a corresponding 4G network coverage in the local area. If not, it is recommended that you set it to the above requirements to use observation, if the problem persists, you can refer to the following solution:

1. It is recommended that you turn off your phone and restart it.

2. Comparison of the use environment under replacement;

3. Try to change the SIM card you are using.

4. Back up the mobile phone data and restore the factory settings;

If none of the above can improve your problem, it is recommended that you take the time to go to your local Lenovo authorized repair site for inspection and repair.

Lenovo authorized repair site inquiry.

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (

Consult to find out.

The Lenovo S90-E phone supports the telecom 4G network.

First of all, you can confirm whether the SIM card used is a telecom 4G card, whether it is used in card slot 1, whether it is in the system settings - mobile network - enable 4G data, and whether there is a corresponding 4G network coverage in the local area. If not, use observation after setting up according to the above requirements.

1. Restart your phone and try;

2. Comparison of replacement and use environment;

3. Try to replace other telecom 4G cards;

4. Back up the mobile phone data (to avoid the risk of data loss) and restore the factory setting operation;

If none of the above can improve the problem, it is recommended to take the time to go to the local Lenovo authorized maintenance site for inspection and repair.