You have just bought an Doro and when you turn it on, it displays the following error text message: SIM card not recognized. From time to time the Doro does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the Doro directly back. In fact, there are many methods to fix this issue. We will therefore observe in this content, what are the stuff to do and confirm to ensure that the SIM card is recognized on your Doro.
What to do when the SIM card is not recognized on my Doro
If the SIM card is not recognized on your Doro, below is a list of stuff that can help you determine the source of the issue, observe repairing the issue.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Doro is to clean it up. In truth, it might happen that dirt partially prevents the contact between the SIM card and the telephone. To clean it, pass a small dab of cloth over it and check if it is not damaged.
Check the location of the SIM card on your Doro
From time to time the issue might be caused by the location of the SIM card. In truth, it often happens that tiny metal plugs that normally have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the Doro from reading the SIM card. To fix this issue, you just simply have to thicken the SIM a little by gluing one or two pieces of tape at the back.
Test the SIM card on another cellphone
To find out if the issue comes 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 modify the SIM card.
Try another SIM card on your Doro
If the two previous steps do not give anything, it’s required to test another SIM card to find out in the event that the issue comes from the card. In fact, in the event that other SIM card function on the Doro, it’s because the issue comes from the card. Otherwise, it’s at the level of the cellphone that we will have to look.
Verify that your Doro is not Simlocker
In case you have tried many SIM cards on the Doro and none are recognized, the cellphone could be Simlocker. This means that the Doro 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 provide on the net that can do that.
Check that the problem will not be caused by the ROM installed on the Doro
This part mainly concerns the people who root the Doro to install a ROM that is not initial. If this is actually what you have carried out, be aware that the unrecognized SIM card issue is quite common after setting up fresh ROMs. We suggest that you reinstall an initial ROM and re-test it.
If nothing works
If all the above solutions do not work, we advise you to bring your Doro and the SIM card back to one of your operator’s shops.
