Lenovo A366T mobile phone card has been showing no service, what s going on

Dear Lenovo users, hello!

It is recommended that you restore to factory settings first:

The first method: first go to your phone's settings, select Privacy, then select Factory Reset, and click Reset Phone.

The second method: select Wipe Date in Recovery mode, as long as you press the home button and the AFK button at the same time at startup to enter the recovery mode.

IDEA Forum.

Think Forum.

Lenovo Community.

Restore the factory settings, format all the files in the storage disk when connected to the computer, and then turn it on.

The phone is so bad, change it.

Why do people like to cry when they have a problem?

Lenovo A388T can't read the card, it is recommended that users insert the SIM card into other mobile phones to try it.

If it still does not work on other mobile phones, it is a SIM card failure, and it is recommended that users replace a mobile phone card.

If it works well on other phones, it means that there is a problem with the phone, and users can try to back up the phone data, and then go to the phone settings to factory reset the phone.

The mobile phone will be restored to the initial state after the factory reset, and then directly insert the card to test it, if it still can't read the card normally, it is a problem with the mobile phone card slot, etc., it is recommended that the user bring the mobile phone, invoice, warranty card to the local brand customer service testing.

The engineer will detect the phone to find out the cause of the failure and will inform the user.

If the mobile phone is under warranty and is a natural failure, you will be responsible for the warranty after the sale.

If it is out of warranty or caused by a man-made fault, then you can only pay for repairs.

Did you plug in the card directly when you turned it on?

Hello, for this issue, check if the SIM card is installed correctly; Lenovo A66 supports mobile phone cards and Unicom mobile phone cards, and does not support telecommunications. Try to find your mobile network's network mode settings in the SIM card settings, set the mode to auto-select, and then restart your phone.

If the above solution is invalid, it is recommended that you try to change a SIM card, if this problem still exists, please go to the nearest Lenovo mobile phone service outlet and let the engineer help you test.

You can use the following link to inquire about Lenovo mobile phone service outlets.

Your phone should have two cards, right? Either the card is in the wrong place, or it is not properly installed, double-check.

The card is wrong, either it is not installed well, or your card is bad, try it yourself, I hope it will help you, hopefully.

Hello. We apologize for the inconvenience!

If the SIM card cannot be recognized by the device, we recommend that you perform the following steps to try to solve the problem:

1.Your device supports China Mobile 4G 3G 2G network and China Unicom 2G, it is recommended that you check whether the SIM card can be used here;

2.If the SIM card is not in good contact, it is recommended that you turn off the SIM card and try to re-insert it to see if it can be used normally.

3.If the SIM card itself is abnormal or compatible, it is recommended that you use other SIM cards for comparison, if other SIM cards can be recognized, it is recommended that you contact the operator for card replacement or other operations;

4.If the above operations cannot determine or improve the problem, please back up the fuselage data and perform a factory reset (menu path: Settings - Reset - Factory Reset) and observe the attempt.

If the problem still cannot be effectively solved, it cannot be ruled out that it is caused by the failure of components such as the body card slot or radio frequency, we recommend that you take the time to go to a nearby Lenovo authorized repair station for specific testing and treatment.

Inquire about authorized maintenance sites on the official website.

You are welcome to contact us or visit Lenovo at any time

Consult to find out.

If the phone is broken, flashing the phone may be able to solve it.

This is a mobile 4G phone, which can only support Unicom 2G card, see if you are a 3G card.