The clone and original is different even one small single piece of parts of clone is not suitable on a legit one .Also the legit is not compatible with the fake one.the phone might be similar outside but the inside part is super different with each other
Are you using third party application(Many third party app is not continous when it comes to taking picture ) ?my s5 last last year is not like that ?on the built in camera app on the phone why try to reset your phone maybe some glitch .
What you did on your phone is a liitle bit dangerous for it .Removing the Lcd or the flex cables withour removing your battery may cause shortage to the board luckily on your case its not damage or what .Always remember remove the battery first before anything else .regarding to not using proper or lacking of tools in opening the phone may result of damage to the board so keep that in mind.
Ive experienced that way back 2014 But in my Galaxy note 2 .its calles sds or sudden death syndrome your board is dead my phone tested and they said my board is dead /Grounded so what i did is i open up the phone remove and turn back the flexes to the board charge it while it is open and boom it works i dont know why this happen but you should try it :) we have the same issue the only diff is you got note 4 and i have note 2 and samaung is known for That sudden death syndrome on their old phone i know how good note series are but i let go my note 2 and never go back again to samsung because of that incident i wish it help try give it a shot .I think the motherboard just need a colder temp. To charge again
Is your lhone not charging i mean it fake charges when not in use but when your using the phone the percent moves ?Maybe your FL11 is the problem try replacing it if not then maybe your port and at last Your u2 ic maybe the problem is your phone showing random battery percentage ?But i think you accidentally broke the FL11 while replacing the battery considering the fact that you tried other battery
Man dont ever send your phone to china if you dont personally know tha factory or the person in their.China deifinitely has the best screen when it comes to apple but they also have the worst .so the thing in their is really tricky so should know the person or the person their ahould buy the goods for you remember If you dont know a people or if your a business mindset people like the most on. China why would you give the best to whom that lives far away to you .Just an opinion buy it on wheir you leave definitely for you to make sure having the quality you really wants the most .Again chinese is bery tricky when it comes to that if you dont wanna suffer getting a cheap one on a higher value just buy in your country for you to examine it all by yourself dont trust to people that you dont know man .
I dont know what particular parts need to be replaced but you have really a big mistake putting it in rice cannot cure the water or rempve the water inside of your phone it will just make the problem worse because maybe the water that is stucked inside already deal serious damage with your board.But again The rice myth is not true it might help but it cant cure it just an info.