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任天堂 Switch 是一款可以通过扩展坞在电视和路上玩的游戏掌机。发布于2017年3月3日。

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Is my technique wrong? Can't remove anything from motherboard?

Hi!

So I have a really frustrating matter. I cant seem to remove any chips or anything from a nintendp switch board ive used all kinds of different flux including Amtech and rework stations my previous rework station was cheap and terrible so I bought a new upgraded alot more expensive and when I used it fir first time with some cheap flux I was able to remove the m92t36 for the first time ever since then I've not beenabke to remove anything.

I paid like 30 pound for some amtech assuming my flux had gone bad ive even messed around with the temperate by increasing it higher as well as the airflow but it doesn't seem to remove anything other than burn my board and cause smoking!!

Any suggestions please is my technique all wrong?

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@katrinaxox what temps are you using and do you even get the solder to liquify. Are you using hot air alone or are you using your soldering iron. Did you tin your tip before trying to desolder any components? Have you tried a solder wick with flux on this yet (not IC's but other components)?

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Great comments and questions @oldturkey03 !

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@refectio Hi! Is there way you can help at all with this regarding everything I've said I can personal message or call you to show you what I'm doing im more than wiling to pay you for your time I dont expect you to help me for free.

Just would really love some guidance to get components off the board as when I'm trying different fluxes as well as changing the temperature and air flow on the machine and still nothing is working it can be quite confusing and frustrating.

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First things first. Before attempting to micro-solder on a valuable pcb, always practice with a dead board of similar nature. That allows you to see what works for you equipment and the pcb you are working on. There is a huge difference, for example, between a smartphone logic board and a PC motherboard. I’ve never worked on a Switch pcb so I can’t say what kind of settings you should use. For iPhone/iPad and Android device repairs, I use 380C and the lowest airflow on my Hakko unit. Many techs use the Quick hot air station and they would have their own preferred settings.

The flux shouldn’t matter that much when removing components but a good quality flux is always preferable. Which Amtech flux are you using? Keep in mind that soldering is as much an art form as it is a science. You have to practice a lot to get the right amount of heat to the IC and pcb but not more than you need. People will argue up and down on which solder and flux to use like their lives depended on it. Ultimately, everyone develops their skills and finds their own preferences.

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Hi all thank your comments. I have alot of pcb switch boards but there's one board that I use as its banned online so I use it as a dead board to mess with. I dont have a hakko air station its a BST one. But I have messed around with the the air flow ans the temperature I did 20% air flow with 300 degrees still nothing so went to 380 then 400 then 420 then 480 and still nothing put the air flow up to around 50 still won't remove it and seems like other people have had the same issue so must be super hard with nintendo switch boards ive tried using flux and solder iron to remove the solder first which worked but no enough was removed to remove the charger port or the chip so I tried to use the air gun again and still nothing i know its not the air gun as I've heard 3 different brands now to see if itnwas that so it has to he something im doing wrong or that the board is one tough thing lol

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The Quick 861DW is a highly rated yet low cost station (compared to the Hakko/JBC/Pace/Weller of this world). If you're going to do any amount of micro soldering, good tools go a long way to making things easier.

300C is definitely too low. Most techs use 360C-400C as their temperature range for hot air. As for the airflow, not too much that it will blow small components away (especially on high density boards like iPhones) but enough to transfer the heat to the component on the pcb. Obviously, thicker pcb's or larger IC's require more air flow otherwise the board just soaks up all the heat and it never gets hot enough where you need it.

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HI Minho thank you for taking time to respond to me I really appreciate you trying to help. As for station I use the BST -863 Hot air Station.

Feel free to Google it if you're unsure. The flux I paid extra for as wanted to make sure I was getting genuine amtech and not the cheap fake but pretty annoyed as it didn't come with the syringe or needles but its called Amtech NC-559-V2- TF no clean tacky flux ive been using the air flow between 20 and 50 and ranging the heat from 300 to 480. It definitely gets hot enough as the components start to slowly burn and then alot of smoke occurs so if irs getting enough and alot of smoke is happening whys it not melting the solder enough to remove the component? I'm using flux regularly so its not dried out and the board is burning slightly so irs obviously enough enough to melt. (Note im using my practice board so not bothered about it burning wouldn't let it burn on any other board) I just wanted to see how much it could take because should he removing

within seconds!!

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