Do not have mobile coverage? Possible causes and solutions
On occasion we will have been surprised to discover that our mobile phone has been left without coverage, seeing the typical messages: "SOS", "Emergency calls only", etc, in the place where the network indication should be shown; as also, sometimes, for no apparent reason, our coverage could have fluctuated between the different networks or technologies (G, E, 3G, H, H +) causing a possible loss of communication or connection , or even, that even having these signals maximum network, we could not issue or receive calls and / or access the internet
That is why we will explain in this post the possible causes of this behavior and the actions we could take to try to solve it.
Possible Causes
1. The signal strength and/or capacity thereof may be subject to various factors such as:
2. Distance in which the antenna to which we register and/or towards where it is radiating (orientation).
3. Be in the so-called "shadow areas" or places with many interferences, for example, valleys, hills, trees, buildings, tunnels, etc.
4. Climatic conditions (such as rain, storms, etc ...) and not in transit (if the change of registry fails to another antenna or cannot find a network).
5. Occasional saturations, which can be given by the number of registered users to the same antenna and type of network (example: beaches in summer periods, tourist places or holiday visits).
What we can do:
Discard that it is not something punctual. By turning off / on our mobile we might know.
Ensure that the network is the one that would be failing, for this we can help with the option "Network mode" of our mobile.
If the calls are affected, if they are not made or received, we should see on our mobile phone if a message similar to "Without SIM" appears, "SIM card not detected", "Calls only emergency "And even even " Without Service “, in order to find out if it would be a physical failure of the SIM card or if it is caused by a malfunction of our mobile. With a cross test, we would know immediately. If it happens that they have a lot of interference and/or cut off when it did not happen before, check if in another area we are "better" and if there are more lines affected to immediately report it.
If we have problems with the internet, we should know if we only have problems with a certain network or technology, deactivating the 3G or 4G will help us to know, determine if it is only in an area where it previously worked or if there are more affected in the same If the case is that our speed is very low, it could be due to: having only 2G / EDGE availability in that area, and having reached our data franchise at maximum speed (it would be solved with the purchase of a voucher or waiting for the change of billing period), by coverage quality that would reach us, saturation (which tends to happen due to tourism), or simply a breakdown in the process of being solved .
Other details to take into consideration:
In the so-called smartphones, network losses can occur randomly if our SIM card is old (32 KB).
If when entering mobile sim we get a message requesting a network unlock code or similar, it refers to the smocking or release code. We must process it with the operator with whom we have acquired the mobile.
That our mobile phone, despite the fact that network coverage cannot make calls by cutting them immediately or, when trying to receive them, the caller hears a voice saying that we have a restriction of incoming calls, and the most curious thing is that the connections to mobile data if they work, we can already suspect that it is a blockage of IMEI.
We hope this post is very useful.
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