How to remove/install an EEPROM 101

[Music] hey there viewers thank you for tuning in to super mario diagnostics once again today we are doing an eprom video it's not specific to a repair i'm actually just practicing i was doing some other stuff and i was getting questions about eprom work and some people find it difficult and it's it's it's nothing to be afraid about afraid of but you know in the automotive industry for the most part we're not used to uh opening up circuit boards and i'm fixing them but you know more and more cars are requiring this stuff you may find yourself needing to rip an eeprom off in order to get data out of it put it into a programmer calculate a password or you know get change certain information like mileage on a cluster board you may need to swap eproms in order to use a used module of some sort that's it could be discontinued or what have you for whatever reason you may find yourself needing to do this stuff eventually if you are you know having to do stuff that uh nobody else can do but anywho i would like to with this video basically kind of eliminate the the fear of of doing this stuff so it's pretty straightforward i have a certain way i like to do it myself so and that is i like to use hot air to remove the eeprom and i like to solder it back on um that way i can control the temperatures you know with hot air for installation it takes a bit of practice i can do it but i rather solder it just just because that's just my preference it's up to you what you want to do but this this should be a video a good video to get you started in in this kind of work let's get to it the board in question the one that we're using is a donor board that's not a donor board it's a practice board and i just mess with it i like to take things off put it back on and uh in this case we're not actually doing an eprom it's the same eight-legged structure like same eight-legged chip but it's not an actual eprom but it's the same exact thing it's it's gonna apply to working on with e-prompts and whatnot so let's get to it first off the equipment um i'm using a uh very s extremely cheap setup i'm not even gonna lie uh this is the flux that i'm using it's amtec uh it's it takes much more you gotta be a little cleaner with it than with uh mg chemicals and the chemicals was you know you could clean it up whenever you want it but this you have to be quick um fume extractor is a hakko fa-400 the soldering iron is on fx888d i keep it at 420 degrees i that's the one i've grown comfortable with and my hot air station is a cheap ebay special auto xl8586 i keep it fully maxed out at the speed i have a little notch here at the speed of like five and almost a half that's the speed i like to use it you may want to slow it down if you are working with smaller packages nearby but yeah that's the name of the game let's get to it i got my circuit board ready let me set you guys up right here and hopefully you guys can see everything this is my camera i don't have a microscope i'm using my camera zoomed in hopefully you guys can appreciate the 4k quality um there is autofocus on it i'm going to try to keep it focused when it should be actually i'm going to take off the autofocus now and let's get right to it first things first let's grab our hot air it's this this particular unit it breeds out um when it's ready to go it doesn't beep when it's at full temp but i like to point it upward until it's ready to go i would not recommend you starting to hit the eprom with the air on as it's getting up the temperature i suggest you wait a couple of seconds after it claims that it has reached that temperature before you start doing this and uh let's get right to it i don't like to i don't personally don't use flux to like a lot of people like to use flux uh to remove a chip to remove an eprom with hot air i don't that's up to you so you don't want to get too close you want to keep it about an inch away and once i like to personally use a back probe or a needle of any sort to slide it off i don't like to lift it off i like to slide it off that's just me though so whenever it's ready we'll gently slide it right off and bam that's how easy it is for it to come off now let's say you grab your eeprom and of course you want to keep a mental note of the orientation if you guys look closely there is a small indentation here is a circle and that is pin number one another way to know when that indentation is not there is that this this edge is cut let me see now this is where the autofocus will have to come into play and um just to show you guys those of you are extremely green on this will find this useful there's a little cut on that corner where there's a nice edge on this corner you put that to your left and the upper left will be pin number one on any eeprom that i know of at least but yeah let's say you grab your eeprom you're putting it on your programmer you're grabbing your data or you are ready to install i personally don't like to use hot air to install it as i said i like to clean up these pads before i install the eeprom so i use a solder work it's some cheap well i don't know i don't care as long as it gets the job done i really don't care maybe in the future i will but at this moment i really don't but anyhow we're gonna want to use flux for this part you don't want to just use a solder you never want to use a soldering iron ever without flux in place so that's one of the it's one of the things if you're going to be practicing you need to buy flux you know you're gonna have to buy flux regardless so just so you know you can decide to do this right clean them up a bit make them nice and even some people will even reinstall right after doing that with the hot air i don't want to do that at least not for this video doesn't mean that i can't do it i could do it but i just don't feel like it but anywho especially for those who who are watching are beginning at this you're not going to want to i don't think you're going to want to take that risk now yes my solder work is used a bit but we're going to go to the unused portion and let the solder do its job you don't need to put pressure you just let it do its job right get them nice and flat we don't know what kind of shutter was on there before and we're using our solder so we don't want to mix them we want to keep everything the same so at this point you can either decide to leave that old flux on or wipe it off so at this point i'm just going to wipe it off you don't need to you could just add more flux if you want to doesn't matter unless you're you know doing some you know higher end work i mean we're doing an eprom job here should be straightforward the name of the game is not to burn anything not to ruin your eprom not to ruin your board so next move we're gonna do is put solder onto one pad i like to do it like this and if there wasn't flux on the board this would be an issue but we're going to put a little bit of solder on that bevel i will show you what i mean about the bevel i like to use this tip i use it for everything except for like extremely small packages but i like to use it for that bam one pad done right so let me see is my autofocus on nope this is the tip i like to use let me see if it'll focus my goodness it is it is pretty dirty right now hold on let me show you do it justice this is how you want your tip to look you're going to want it to look clean once it starts looking black that solder doesn't just jump on like nothing you know as soon as it touches it should burn if you're not getting that effect your soldering iron needs to be cleaned up there are certain products you can use i don't have the cap to this but these are solder tip cleaning products that you can use great stuff uh you don't want to use it as much as you do these sponges and these soldering tips sponges so we've got our one pad already done with solder right we're going to place our eeprom on there and you know it's a little difficult for me to see because of the camera in the way but i'm going to try my best to tack it down without foobaring it and i'm not perfect at this but there's one down right we're going to want to put another one down because when we start drag soldering you're not going to want this thing moving around now you could opt to not drag solder and just solder them one by one but that's up to you i highly suggest you start practicing your drag soldering i'm not perfect at it i mess up and sometimes i bridge them but this is all a work in progress we're here to improve every day we learn something new every day so i've put some solder on to my bevel and now we're going to drag solder take your time you start getting used to it once you do it plenty of times you can hit it again if you have any doubts as long as your your flux isn't burnt out you will be good to go i like to play it safe clean out the tip and hit it with some more fresh solder and don't bring that stuff in you better be using a fume extractor the one i'm using isn't perfect but it's better than nothing and i really do need an upgrade but at this moment we're just going to leave it at that so we're going to finish up our eprom job here bam right if you have any doubts go for it again it doesn't matter right you're going to want to use your back probe or needle whatever you want and check your work right i personally like to nudge them nudge the pins not too hard you don't want to rip the freaking pad off and now it's time to clean it up so personally i like to use this stuff flux off and uh we're just gonna hit it with some of that and my brush is in here so i gotta move this i do apologize and we're just gonna brush this off and i'm using the kimtec wipes they're meant to be lint free so this is not going to be a perfect cleanup if ideally you're going to want to use some better tactics but some people even put them in into ultrasonic cleaners that's perfectly fine as long as you're completely dry you're good to go to finish this off i'm going to be you know i like to hit it with these these are lint free as well just to get into all the little nooks and crannies and then dry it off really well before you reinstall the module do not let this thing go out wet you want it to be completely dry sometimes i like to use one of the wipes along with the brush and hopefully the brush isn't too like wet already you know you want it to dry and i like to hit it with the brush on top of the wipe it kind of like makes things a lot easier it's not perfect but for the sake of this video that's where we're going to end it usually i'll be extremely freaking picky about it but for the sake of this video we're going to leave it at that it's already bothering me i haven't even finished the video it's already bothering me all this little i don't want it to have any flux left over you know be very careful do not rip anything off and go charge the customer i hope you all enjoyed this video i um it sure is nice to have somebody uh you know show you something that you didn't know before and i hope you all find it useful and i'm sure you'll see the need eventually once you start working with certain vehicles certain discontinued modules certain things that manufacturers say you're not supposed to do but there's you know there's a way around because that's how technology is you know i'll leave it at that i hope you liked be sure to subscribe leave a comment if you'd like to i'm sure i missed something i'm sure i screwed something up be sure to leave it in the comments section and until next time

Channel: Super Mario Diagnostics

Views: 66,283

Keywords: Hot air, Solder, Soldering, Eeprom, Rework, Circuit board

Id: HXvPjf0vodU

Length: 15min 37sec (937 seconds)

Published: Sat Jun 26 2021