Nokia Lumia 520 insert sim or sim error solution

Nokia lumia 520 network solution

How to fix Nokia Lumia 520 showing sim error or insert simcard. This particular phone has one particular problem that the insert sim card problem can display sim invalid. So when we get this phone it was confusing. Because simcard invalid in Nokia Lumia 520 phone is network unlock.

Just like Nokia 206 insert simcard  lets get down to business

Nokia 520 sim invalid repair

There two ways you can do this

Method 1

1. Disassemble(loose) the Nokia 520.


2. Clean the panel off dust.


3. Check the simcard jack.


4. Read the simcard jack to the panel.


5. If is ok and power the phone it still shows insert sim, sim missing,sim error or sim invalid.


6. Then follow the image below and locate the simcard ic and replace the ic.


7. Done check Nokia Lumia 520 and the sim missing message will disappear.


8. Will get full network

Nokia Lumia 520 sim problem

Method 2

1. Disassemble(loose) the Nokia 520.


2. Clean the panel off dust.


3. Check the simcard jack.


4. Read the simcard jack to the panel.


5. If is ok and power the phone it still shows insert sim, sim missing,sim error or sim invalid.


6. Then follow the image below remove the simcard ic with Rework Station.


7. Get a hot soldering iron.


8. get three pieces of connecting wires.


9. Make jumpers according the expanded block image.


10. Done check Nokia Lumia 520 and the sim missing message will disappear.


11. Will get full network

Nokia Lumia 520 insert simcard

Alas your are the perfect person if you get it right.

Note

Hardware problems:  the solution we posted here about Nokia Lumia 520 sim missing, insert sim, sim error has been tested in our workshop. We don’t take any responsibility whatever if anything go wrong in cause of your own work . We repeat this and loud please do it at your own risk. You can ask us how it was done through the comments sections.