removing and soldering a large smd qfp64 ic with quick station hot air rework

[@humankibo1560]

If youtube could allow sending picture of succeful removing the chips i did; i would have sent. Bro, you have helped me alot to remove the IC on my laptop. I don't know how much to thank you. But, may the God bless you for sharing this great experience with us.

[@ecurepair]

Glad to hear it, I appreciate the comments, thank you.

[@cromyjr1592]

The music said it all - no explanations were needed. Proof is in the comments - nobody's asking anything.

[@buddyweird]

Thanks a lot for tutorial! It helped me a lot.

[@DejectedCat]

Wow, so just go round and round and pick the chip right up? I'm still kinda scared to start using a hot air gun, unfortunately my current DIY project pretty much requires me to remove an IC chip undamaged similar to the chip in the video. Still debating if a hot air gun is the right tool for me. But you making it look so easy does add a little to my confidence for what that's worth.

[@ecurepair]

Its not too hard to start with and definently the right tool for removing smd ic's. Just practice a little first on junk board.

[@Mixarteaudio]

It's inspiring, nothing is impossible. I suscribe

[@DailyDoseOfJoy]

which temperature and airflow you recommend for chips like that mate?

[@ecurepair]

Generally I leave hot air on full speed at 450c. I will turn it down only if working with small stuff. You can easily control the temperature by adjusting distance of nozzle.

[@f1lupo]

@@ecurepair with that high temp and max flow I’ve damaged some chips but at least I’ve removed some stubborn ones without damaging any traces

[@ecurepair]

@@f1lupo Yes, you need to really pay attention to your distance and dwell time or you will cause damage for sure. I should always point out that since I work on automotive stuff its generally still attached to aluminum casing. Normal boards 350c is probably safest.

[@humankibo1560]

@@ecurepair air maximum?

[@vallabh81]

accurate hand movement👌🏻👌🏻👌🏻🌹🌹👍🏻👍🏻👍🏻

[@howtolocksmith]

hot air is the best

[@abdulwaaseihsultan7733]

Nice job ...what paste you used during resoldering?

[@ecurepair]

this one was actually Kester 183 liquid flux. ebay.us/vUw6JB

[@abdulwaaseihsultan7733]

Thanks a million for your reply ❤️

[@f1lupo]

@@ecurepair can you use solder paste too?

[@ecurepair]

@@f1lupo Yea you can use paste. You'd want to wick up what's already there in that case so you dont have too much solder on each joint.

[@f1lupo]

@@ecurepair 👍

[@Redled_Original]

I see a lot of experience.

[@gilbertknight6617]

Hello One question please: Why adding flux before removing and installing the new chip ? I thought flux is only a cleanser (for cleaning)

[@ecurepair]

it enhances solder's wetting ability and helps it flow better

[@gilbertknight6617]

@@ecurepair thanks a lot for the reply and help Another question please: How the new chip stick to the board without adding any solder (like solder paste) ?

[@ecurepair]

There is solder there. I had tinned the pads prior to using the hot air gun again to set the chip

[@gilbertknight6617]

@@ecurepair what do you mean by you tinned the pad? Sorry if i'm questioning a lot but my phone died and i need to replace the power ic chip and i never done that before and i have no experience Thanks again for the help

[@ecurepair]

@@gilbertknight6617 @0:51 I use my iron to add solder from the tip to pads and even out the solder already there from where I removed the chip. Adding solder to a surface like a bare wire or a bare smd pad is called "tinning" .

[@Christopher-mx9hd]

what should I do if there is like plastic near the component or other heat sensitive parts near by?

[@ecurepair]

You can protect it pretty good by covering it with kapton tape or aluminum foil

[@alward888]

What type of flux are you using? Liquid type?

[@ecurepair]

Yes, Kester 186 ebay.us/c2Kmxk

[@mohandmohand2047]

How match heat gun use if i desolder rs2006efv chip for ps2 bro with no damge and thing on motherbord?!!?

[@ecurepair]

320-350c should be fine

[@hamdybasuony7920]

what temperature you using ?

[@ecurepair]

Thie tip used in video is a fixed 393c

[@henrylaredo]

Is it me or you placed the ic in the wrong position because the dots in the footprint and in the marking did not match....

[@ecurepair]

Its you. There is no marking dot on the pcb. Just via's. The one you think is a foot print marker is just filled in with solder. Watch the beginning closely. The chip was placed correctly.

[@henrylaredo]

@@ecurepair jejeje yes you're right, it was a via with solder.

[@robertjean8319]

What hot air station did you use in that video? I am looking out for a good at a fairly decent price

[@ecurepair]

The one in video is a quick 861dw ebay.us/NzyOAZ .

[@MRSZ5440]

Everybody keep showing chips with leads coming out how do you remove an SMD chip with no leads?

[@ecurepair]

They remove the same way but putting them back is a little bit different.

[@alexandrabetke]

That's not soldering, that's frying.

[@ecurepair]

🍽

[@JoseBrasMoskow]

bad bad bad bad bad

[@ecurepair]

🥱

[@BYTES305]

What temp the soldering iron ?

[@ecurepair]

hot air usually 350-450c depending on what im working on. Like little board in video, 350 is good. Solding iron I use a metcal so its controlled be tip. Most common one I use is I think its around 380c