How to repair Nokia 640 XL insert simcard problem

Nokia went to android market but came up with their own type of android smart phone. Their smart android phone is always different from other androids. Here we introduce Nokia 640 XL android insert simcard solution.

Nokia 640 Xl mic solution

Image credit @d-artigo

What you need to fix Nokia 640 XL insert simcard

1. A good working common sense very important.


2. A complete set of phone screw drivers.


3. Working digital or analogue meter.


4. A rework station in case you want replace an ic.


5. A sharp blade to scratch the point you want to solder.


6. A good working soldering iron and soldering paste.


7. Connecting wires or use old handsfree wires.


8. A little technical skill.


9. Check the diagram or picture very well.

How to fix Nokia 640 XL insert simcard problem

1. Loose or disassemble the Nokia 640 Xl.


2. Carefully remove Nokia 640 XL cover.


3. Use cleaning fluid to clean the China phone.


4. Scrap the points according to the picture.


5. Use your connecting wire to short or join the points together.


6. Ensure that your soldering iron is hot and has a good tip.


7. Test the continuity with meter of the point you just join together.

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Test Nokia 640 XL insert simcard problem phone before you tight or assemble the phone back.