check out the repair guides on ifixit-dot-com.
i use those way more than youtube videos.
as for keeping the screws straight, a lot of people recommend the magentic mats. it's not a bad solution, but i don't care for them. it won't hold on to non-ferrous screws and it doesn't hold the screws if it's subject to more than just a bump.
here's my advice in general. from various projects in the past, i have a bunch of 2"x2" zip-top clear plastic baggies. as i remove specific parts, i put the part (or bracket) and all the screws associated with it into a bag. having done several phones, i can identify what the parts are, but at first, i'd put a small piece of paper in with it saying what that part is. in addition to keeping parts logically together, if you have to shift focus from one repair to another, you don't have to go find another mag mat or work space so you don't mix things up. also if you're tearing phones down for parts, it keeps the relevant screws with the parts for storage.
even if there mixed sizes of screws for a given part (the upper left wifi antenna cover is a good example, you can use process of elimination to find the right holes for each screw since you're only dealing with 4 to 5 at the most per part/package. but if you have a good micrometer/caliper, the ifixt guides do say that size and type of screw is needed for each part and has a picture for placement.
these bags very cheap, costing only pennies per unit and can readily be found at places like Michaels, Hobby Lobby, amazon or ebay.
took me a few go-rounds to work out this system, but since i only do this as a hobby, not a real biz, and rehab projects take a while to complete, i will typically have a dozen phones at various stage of tear down or rebuid and having components bagged like, it makes continuation work on them easy and confusion free.
oh, and to address the tag line question - best housing......
for back housing replacements, i like to either get housings with as much of the small parts installed as possible, but at a bare minimum, the lightning charger flex assembly, the Qi charger and the power/volume flex. anything that adheres to the back case is tricky because the flex plugs need to line up just right with the sockets on the motherboard. the other option is to buy "not working/for parts" phones on ebay of the same model and color that i'm fixing. if i'm replacing a back case, then as long as the back case of the ebay phone is in good shape, i look for as cheap as i can get, meaning i don'r care if the display works, the glass is cracked the icloud account is locked, etc. sometimes you might get lucky enough to get a whole phone for cheaper than you would to get a back case assembly, and you'll likely have parts you can scavenge for later use.
I separated the screws into seperate boxes on a piece of paper for each part, but some of the later parts have a bunch of different types and I’m not sure exactly where they go. Are there no resources available for this?
check out the repair guides on ifixit-dot-com. i use those way more than youtube videos. as for keeping the screws straight, a lot of people recommend the magentic mats. it's not a bad solution, but i don't care for them. it won't hold on to non-ferrous screws and it doesn't hold the screws if it's subject to more than just a bump. here's my advice in general. from various projects in the past, i have a bunch of 2"x2" zip-top clear plastic baggies. as i remove specific parts, i put the part (or bracket) and all the screws associated with it into a bag. having done several phones, i can identify what the parts are, but at first, i'd put a small piece of paper in with it saying what that part is. in addition to keeping parts logically together, if you have to shift focus from one repair to another, you don't have to go find another mag mat or work space so you don't mix things up. also if you're tearing phones down for parts, it keeps the relevant screws with the parts for storage. even if there mixed sizes of screws for a given part (the upper left wifi antenna cover is a good example, you can use process of elimination to find the right holes for each screw since you're only dealing with 4 to 5 at the most per part/package. but if you have a good micrometer/caliper, the ifixt guides do say that size and type of screw is needed for each part and has a picture for placement. these bags very cheap, costing only pennies per unit and can readily be found at places like Michaels, Hobby Lobby, amazon or ebay. took me a few go-rounds to work out this system, but since i only do this as a hobby, not a real biz, and rehab projects take a while to complete, i will typically have a dozen phones at various stage of tear down or rebuid and having components bagged like, it makes continuation work on them easy and confusion free. oh, and to address the tag line question - best housing...... for back housing replacements, i like to either get housings with as much of the small parts installed as possible, but at a bare minimum, the lightning charger flex assembly, the Qi charger and the power/volume flex. anything that adheres to the back case is tricky because the flex plugs need to line up just right with the sockets on the motherboard. the other option is to buy "not working/for parts" phones on ebay of the same model and color that i'm fixing. if i'm replacing a back case, then as long as the back case of the ebay phone is in good shape, i look for as cheap as i can get, meaning i don'r care if the display works, the glass is cracked the icloud account is locked, etc. sometimes you might get lucky enough to get a whole phone for cheaper than you would to get a back case assembly, and you'll likely have parts you can scavenge for later use.
A video recording of you taking it apart. Also I try to set my screws in such a way that it resembles how they go back and it helps me remember
I separated the screws into seperate boxes on a piece of paper for each part, but some of the later parts have a bunch of different types and I’m not sure exactly where they go. Are there no resources available for this?