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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?
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.
