OPPOa3 1 can't receive the short message. Why?

OPPO mobile phone can't receive SMS because the mobile network of OPPO mobile phone is faulty and the communication function fluctuates occasionally, which leads to network congestion. The following methods can solve the problem of not receiving short messages:

Turn off and restart the OPPO phone first, and wait until it is turned on to see if the phone has received the SMS.

Second, call the service inquiry phone of the mobile communication network operator to inquire whether the short message function of the mobile phone is used normally.

Third, upgrade the OPPO mobile phone system, wait for the system upgrade to be completed, and check whether the SMS can be received.

1. Take OPPOa3 1 mobile phone as an example, unlock the screen of the mobile phone, find the "Settings" option on the desktop, and click to enter the next step.

2. Enter the setting page, find the "System Update" option, and open it to enter the next step.

3. On the system update page, OPPO mobile phone system automatically retrieves the server system version. If a new mobile phone system version is released, the mobile phone will automatically download and install the latest system version.

4. If the above methods can't solve the problem, you can take your mobile phone and warranty card to the official repair center of OPPO mobile phone for inspection and maintenance.