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hi!! my lumia 520 motherboard has got short circuited. I want to replace my motherboard . Guide me !!

If you already found a motherboard, you can follow this guide till step 7, and then re-assembly. Nokia Lumia 520 and 521 Touch Window Replacement

can u put a nokia lumia 520 mother board in a nokia lumia 521

Nokia 520 mother board not working

My Nokia 520 motherboard is not working.