Acer Liquid Z4: Unrecognized SIM card

You have just acquired an Acer Liquid Z4 and when you turn it on, it displays the following error text message: SIM card not recognized. Sometimes the Acer Liquid Z4 does not recognize the SIM card and displays this message. In this case, it is not necessarily necessary to bring the Acer Liquid Z4 directly back. Certainly, there are many methods to fix this trouble. We will for that reason discover in this tuto, what are the stuff to do and check to ensure that the SIM card is recognized on your Acer Liquid Z4.unrecognized-sim-card-Acer-Liquid-Z4

How to proceed when ever the SIM card is not recognized on my Acer Liquid Z4

In the event that the SIM card is not recognized on your Acer Liquid Z4, below is a list of stuff that may help you determine the source of the trouble, discover repairing the trouble.

Clean SIM card

One of the first stuff to do if the SIM card is not recognized on your Acer Liquid Z4 is to clean it up. In fact, it may happen that dirt partially prevents the contact between the SIM card and the mobile. To wash 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 Acer Liquid Z4

Sometimes the trouble may be caused by the tracking of the SIM card. In fact, it often happens that tiny metal plugs that most of the time have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the Acer Liquid Z4 from reading the SIM card. To fix this trouble, you just have to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on another smartphone

To find out if the trouble comes from the SIM card, you’re able to test it on another phone and you will have your answer. If it is not recognized on other devices, you’re able to modify the SIM card.

Try another SIM card on your Acer Liquid Z4

In the event that the two previous steps do not give anything, it can be necessary to test another SIM card to find out in the event that the trouble comes from the card. Certainly, in the event that other SIM card work on the Acer Liquid Z4, it can be because the trouble comes from the card. Otherwise, it can be at the level of the smartphone that we will have to look.

Confirm that your Acer Liquid Z4 is not Simlocker

In case you have tried many SIM cards on the Acer Liquid Z4 and non-e are recognized, the smartphone may be Simlocker. It indicates that the Acer Liquid Z4 will recognize only the SIM card of a certain operator. In this case, you have to unlock it. You will find without a hassle a lot of offer on the internet that may do that.

Check that the problem does not be caused by the ROM installed on the Acer Liquid Z4

This part mainly concerns the people who root the Acer Liquid Z4 to install a ROM that is not original. In the event that this is actually what you have completed, be aware that the unrecognized SIM card trouble is quite common after setting up fresh ROMs. We highly recommend that you reinstall an original ROM and re-test it.

In the event that nothing works

In the event that all the above solutions do not work, we recommend you to bring your Acer Liquid Z4 and the SIM card back to 1 of your operator’s shops.