Do you know that a pal of mine visited care centre because his loudspeaker was muted, no sound at all. The blokes opened the phone and informed him that "There is water contact in the center of the mother board, yep exactly the center, nowhere else & it'd be $15~ to repair it"
He asked them to pack it up and do nothing, switches on the device and its back to life, sound works okay.
The lady who was attending my pal, literally cried (not really) because my pal is one awesome guy who doesn't quit a fight when he's right lol.
Maybe it was the same case?
Well with me it happened that I dropped the phone at Centre. After 2 hours I received SMS that your phone is repaired, please come to pick it up. I was very happy that wow, they are fast. I did not ask exactly what had happened, I was happy my phone was loud like before.
2 days later I saw flashlight was not working. Neither with camera. Googled the problem and found out that contacts are probably lose, and it will be resolved by taking apart phone and this is to be done at care centre.
Went today and told them flashlight did not work after week ago's repair. They checked on their Repairs Management system and told me this device was diagnosed with moisture. The engineer said we did you favor by repairing it and maintaining warranty else it would have been paid repairs. This time I did not give them my phone as they gave me repair time of 10 days since "they needed to order the outer shell" for completing repairs.
Yes moisture is a practical thing, but since when did Nokia hardware become so prone to droplets of water. Normally droplets would enter on all types of phones if you hold with wet hands or under rain. But I am surprised this Lumia did not stand some drops. My brother had once put my Nokia 6230i in a glass half filled, I put the phone in sunshine for a day and it was back to life.