iphone 6s no backlight after screen replacement

We receiving lot of iphone 6s no backlight after screen replacement problem. Even though we wrote a blog few months ago on the same iphoe6s backlight problem but some of the iphone 6s we received the technicians tried to replace the same fuse which we have shown in our previous blog. Which was fl4221  some of the technicians made it worse than a normal repair by pulling the pads. Just to aware technicians out iphone 6s back light has around 10 filter or fuse and they all located at different places. For example see the picture below another iphone 6s which was not fl4212 but fl4221 which is 120 OHM 210MA.

read further here http://www.applefix.co.nz/blog/iphone-6s-no-backlight-after-screen-replacement/