You have just acquired an OPPO A57 and when you turn it on, it displays the following error message: SIM card not recognized. Sometimes the OPPO A57 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the OPPO A57 directly back. In truth, there are several tricks to fix this trouble. We will for that reason discover in this content, what are the things to do and verify so that the SIM card is recognized on your OPPO A57.
What to do when the SIM card is not recognized on my OPPO A57
Whenever the SIM card is not recognized on your OPPO A57, below is a list of things that could help you identify the source of the trouble, discover repairing the trouble.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your OPPO A57 is to wash it up. In truth, it may happen that dirt partially prevents the contact between the SIM card and the mobile. To clean it, pass a small dab of cloth over it and check if it is not damaged.
Check the tracking of the SIM card on your OPPO A57
Sometimes the trouble may come from the tracking of the SIM card. In truth, it often occurs that small metal plugs that normally have to come in contact with the SIM card are a bit relaxed. When this is the case, this prevents the OPPO A57 from reading the SIM card. To fix this trouble, you just need to thicken the SIM a little by gluing one or two pieces of tape at the back.
Test the SIM card on another telephone
To find out if the trouble originates from the SIM card, you can test it on another phone and you will have your answer. If it is not recognized on other devices, you can change the SIM card.
Try another SIM card on your OPPO A57
Whenever the two previous steps do not give anything, it truly is required to test another SIM card to find out whenever the trouble originates from the card. In truth, whenever other SIM card work on the OPPO A57, it truly is because the trouble originates from the card. Otherwise, it truly is at the level of the telephone that we will have to look.
Confirm that your OPPO A57 is not Simlocker
If you have tried several SIM cards on the OPPO A57 and non-e are recognized, the telephone may perhaps be Simlocker. It indicates that the OPPO A57 will recognize simply the SIM card of a specific operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the net that could do that.
Check that the problem doesn’t come from the ROM installed on the OPPO A57
This part mainly concerns the people who root the OPPO A57 to install a ROM that is not initial. Whenever this is actually what you have done, be aware that the unrecognized SIM card trouble is quite common after installing fresh ROMs. We suggest that you reinstall an initial ROM and re-test it.
Whenever nothing functions
Whenever all the above solutions do not work, we recommend you to bring your OPPO A57 and the SIM card back to one of your operator’s shops.
