Sim card not working

Question

Oppo A53

The phone comes with a 6.50-inch touchscreen display offering a resolution of 720x1600 pixels at a pixel density of 269 pixels per inch (ppi) and an aspect ratio of 20:9. Oppo A53 2020 is powered by a 1.8GHz octa-core Qualcomm Snapdragon 460 processor. It comes with 4GB of RAM.

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Per Ivar Moen @perivarmoen

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1

게시됨: 어제2026년 1월 8일

옵션

Sim card not working

I bought a used phone online and the sim card doesn't work. What can I do?

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예 아니요

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Have you tried placing a new SIM? You may have to go to a carrier to buy a new SIM card.

Please specify whether the SIM slot has a SIM card or not. :)

Bryan 의 어제2026년 1월 8일

@bryan56776

There are two sim card slots. None works. I have also tried a different card

Per Ivar Moen 의 어제2026년 1월 8일

@perivarmoen This could be an issue with the SIM card slot reader. I'm going to try and find the location of the SIM reader.

Have you tried doing a hard reset to your phone?

Bryan 의 어제2026년 1월 8일

I did the factory setting

Per Ivar Moen 의 어제2026년 1월 8일

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Have you tried placing a new SIM? You may have to go to a carrier to buy a new SIM card.

Please specify whether the SIM slot has a SIM card or not. :) — Bryan
@bryan56776

There are two sim card slots. None works. I have also tried a different card — Per Ivar Moen
@perivarmoen This could be an issue with the SIM card slot reader. I'm going to try and find the location of the SIM reader.

Have you tried doing a hard reset to your phone? — Bryan

James Soulsby @jamessoulsby 평판: 1.2k Gadget Repair Nottingham 4 · Answer 1 · 2026-01-08T06:52:29-07:00

James Soulsby @jamessoulsby

평판: 1.2k

Gadget Repair Nottingham

4

게시됨: 어제2026년 1월 8일

옵션

Does it show "No Sim" even with the sim card inserted? If so the sim reader in the phone might be damaged. Sometimes it can just require bending the pins because they are not making contact with the sim card. Other times it will require replacing the sim reader if the pins are actually snapped. It could also be caused by other issues like the phone being blacklisted or a more serious issue on the motherboard.

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It says "no sim"

Per Ivar Moen 의 어제2026년 1월 8일

See if you can look inside where you insert the sim card for any damage. Could also be an issue with the sim tray.

James Soulsby 의 어제2026년 1월 8일

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Oppo A53

Sim card not working

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