Nokia Lumia 800,Nokia problems

How to Solve Nokia Lumia 800 SIM Card Problem?

How to Solve Nokia Lumia 800 SIM Card Problem?

The only problem you will encounter under the banner of Nokia Lumia 800 SIM card problem is the insert SIM message. If you are not getting network signals in your Lumia 800 then it is the network problem.

Here is the manual and hardware solution of Nokia Lumia 800 SIM Card problem:

Manual Solution

  • Restart your phone and check.
  • If the above step doesn’t work then remove, clean and reinsert your SIM Card and check.
  • Check with any other good and working SIM card.

Hardware Solution

sim socket contacts sim sensor

  • The very first thing that you need to do is to Clean SIM Contacts with a tool having sharp edges (If you are not willing to remove metal covering of SIM Socket) and check.
  • Check continuity of SIM sensor after inserting SIM card. If it is damaged then replace it.

sim contacts and controller ic

  • Check continuity between all 6 SIM Socket contacts and components one by one. If any of the components is damaged or faulty, replace it.
  • Reheat SIM Controller IC and check. If it is still not working then replace it.



  • Hi, I am surprised to find such a good website. Thank you for your great work. In fact I bought a lumia 1020 with a broken pin contact to repair it. I unsoldered (heat gun) the metallic thing on the sim socket to have access to the damaged socket. I ordered a new one from ebay. Before soldering the new sim socket I would like to be sure everything is ok. The problem is that under the sim socket, there were “only” 10 tin points (don’t know how to call it, but I mean the metallic point where I have to solder the sim socket), it seems that 2 of them are not present. I know that there should be 6 points (because there are 6 contacts for the sim)+ 6 point to hold the socket maybe? but 2 could have been damaged.. is it possible to find a picture of a Nokia 1020 pcb to be sure? thank you

    • Pompom I understand your problem, but really sorry at this moment I don’t any Lumia 1020, so I am not able to guide you in this case. I need to see the circuit for that, but alas i don’t have that with me at the moment.

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