Android
There are several reasons for which on the mobile device with android is not possible to send ordinary SMS. But before proceeding to their search and elimination, you should make sure that you do not allow an error when entering the number, you did not forget to replenish the account and are not in the black list at the recipient. If these nuances are excluded, you need to check the settings of the SMS-Center - perhaps the problem is in them. Perhaps such behavior is a single collection - in this case, the standard "Messages" application must be cleaned of cache and temporary data, it will not be necessary to do the same with the entire system. Sometimes the culprit of the problem under consideration is a third-party or malicious software that blocks sending the messages - it is obvious that it will be necessary to disable or delete it. All mentioned solutions, but much more detailed, we have previously been discussed in a separate article.
Read more: What to do if you don't send SMS on Android
iPhone.
As with Android, on the iPhone, before searching for the search and elimination of potentially possible reasons for which the SMS is not sent, it is necessary to exclude obvious errors. Perhaps, in the operation of the cellular operator, there is a temporary failure or at the moment there is a bad signal. Perhaps you have in a hurry indicated the wrong number or in the account is not enough. By eliminating all this, you should check the message parameters - whether the function is enabled, the SMS center is configured correctly, etc. In the most extreme cases, it may be necessary to replace the SIM card (if it turns out that it is damaged) or reset the network parameters installed on the device. It is extremely rare, but still it happens that the failure occurred in the mobile operating system - to eliminate it will help the recovery procedure or full reset. You can learn more about all the causes and methods of elimination from the following instruction below.
Read more: What to do, if you do not send SMS on the iPhone
