New IC Chip - does it need to be programmed?
I got an iPhone 5s which always shows me error 4005 in iTunes and isn't able to restore. I found many solutions to this problem which I will try out in the following days but the most common and most complicated solution is that the IC chip either needs to be reflowed / reballed or to be replaced completely.
My first question is: Is it possible to find out whether the IC is still alright so that it just needs to be reballed instead of being replaced completely?
Besides this there are a lot of videos on the internet that show people replacing the IC just as it is, without programming the new chip in advance or anything. But in here I read that the new IC needs to be pre-programmed to run properly with the phone and you can't just replace it without doing that.
So will the iPhones from the people in the videos just not work in the end or how is it possible they don't pre-program the new IC's? And some of the logic boards from the people's phones seemed to be from iPhone 5's too, so its not older phones or anything.
And my last question is, could you program the new IC by yourself or do you need special tools to do that? Please don't just tell me to bring the phone to a repair shop - even if its too hard of an operation to do by myself I would really like to know what exactly is the hard part so I can decide by myself.
I'm greatful for every answer!
Is this a good question?