The original button has to be transplanted over to the new screen if its transplanted over and nothing is damaged ie the long home button flex under the screen and the home button itself then you shouldnt loose touch id. If u booted the phone without the home button to try the screen then touchid wont work till u restart the phone again. If it doesn't work after a screen then u really did damage something either on the flexes or on the board itself u need to inspect carefully Restoring, resetting etc will not help and is pure nonsense A new home button original or copy made out of gold or chinesium will never work no matter what u do unless it is done by apple anyone that tells u otherwise is wrong, the only hope for touchid is the original button which was with the phone and paired with the cpu if its damaged the only way to get it to work is to try ur best to fix .
Always carefully peel off anything u can that is missing on any phone or any device theres usually a reason for all of it… Foil is usually to act like a heatsink/heat shield Tape is usually to insulate or stop components touching other parts Rubber gaskets and seals are for protection or covering speakers and microphones to eliminate other noise etc and around light sensors to stop light leaking in P.s dont forget to transplant that earpiece speaker too and at the bottom of the pic there are I think 3 little things sticking out of holes I dont know what they are but stick them in too
U shouldnt really be cleaning the inside of ur phone with anything unless there is reason to do so like water damage/corrosion If u do need to clean there are various PCB cleaning solutions available check the country ur in for what everyone else uses I.e lots of people recommend Branson ec liquid in the US for ultrasonic cleaning we dont have that here so we use an equivalent that is mixed with water the important part is to dry it thoroughly afterwards To clean the screen u can use some isopropyl on a cloth or even window cleaner spray I like astonish lol however spray it on the cloth not on the phone be careful with too many chemicals things like alcohol do get under the screen if it's not fully sealed and will damage the backlight area. Charging port toothbrush with a bit of isopropyl and headphone port a cotton bud with some of its cotton picked off dipped in alcohol. Theres probably better methods for all of this I just make sure I get whatever I need on the part I'm trying to clean and no where else…
Did u charge both phones before and checked the screen was at least working before starting any repairs??? U could have a damaged screen, u could have 2 totally flat batteries, u could have a damaged charging port… put the board back into it's original housing with it's original screen and check it again if it fails u could have done anything like causing long screw damage
If data is important to u and u dont know the answer to this question then I would not be doing what u are proposing… Have u ever successfully transferred a cpu or even a nand on any iPhone before??? If u havent then I would not even think about thinking about what ur attempting and u havent even said what u have tried already to repair the device prior to this Cpu, baseband, nand and eeprom assuming they all work and arent damaged
Lol I love these bend them the special way things lol When u say it stopped working how did it stop working was it dropped… how high was the drop Replace the screen put the metal plate back on with its screws dont mix up the screw order and it should be ok When it's working go slap the person who told u to bend it the special way in the face :) How did it stop working? Blank screen, fuzzy colours, no touch etc