I brought my iphone 6+ to Greenhills to Gerald Repair, first he tried to charged if for few minutes while doing on other phone..its not charging, its totally dead probably bec I keep on trying to fixed it my self removing sim and accidentally on the wi fi assist on 3G, connecting it to computer to itunes..diagnostic
...and some other things charging even its grayed wifi...all the repair thing including knocking the back...dropping in pillow only...and he initially change the battery...it turn on ...it was damaged by keep on operating and charging it under a grayed wifi and bluetooth searching condition... better turn it off and have wifi ic replaced...he saw the grayed wifi and aggreed to replace it cost 3,000 pesos and 1000 pesos for battery...in approcimate 1 hour it was repaired...he got fb account and on internet if you are looking for cellphone repair in Greenhills Shopping Center Philippines...it was 2 weeks ago and my iphone 6 plus works good...never been formatted...it was a 3 year old phone so I wish it last for more than 3 years...my advice if you got grayed wifi turn it off and have your wifi IC replaced you saved 1,000 pesos or 20$ for battery replacement...I"m not sure if the battery had a safety IC or fuse...it seems...my fathers iphone 5S shutdown last Sat 9-2-17...dead even with charger on... we brought it to Gerald and initially replaced the battery it turn On...the battery was damaged even though it was unnoticely bulged...so grayed wifi needs new wifi IC, apple store dont repair it, they want trade in and additional 22,000 pesos thats 440$...frustating why apple store cant repair their own product