SMD removal question - GSM-Forum

nathan173 · 09-13-2014, 13:12

I'm trying to remove L2RF from an iPhone 4 board and am having difficulty, it appears to be glued on tight.

I've tried flooding it with solder on both ends, tried heat gun and soldering iron but it won't budge. Nothing at all like the Nokia board I have been practicing on.

Any tips for an old school electronic technician & SMD removal n00b?
What kind of tweezers do some of you use?

dog68 · 09-14-2014, 14:31

Try using two irons on coils, they come off easily like this .

laptopmd · 09-17-2014, 12:44

use hot air with a nozzle of ~6mm and for heat try first at 260°C and eventually go up until 280°C, it should melt after 1-2min , when the solder it is melt, remove the coil and remove immediately the hot air, to not damage surrounding components.

09-13-2014, 13:12	#1 (permalink)
nathan173 Insane Poster Join Date: Aug 2014 Location: Australia Posts: 76 Member: 2249587 Status: Offline Thanks Meter: 11	SMD removal question I'm trying to remove L2RF from an iPhone 4 board and am having difficulty, it appears to be glued on tight. I've tried flooding it with solder on both ends, tried heat gun and soldering iron but it won't budge. Nothing at all like the Nokia board I have been practicing on. Any tips for an old school electronic technician & SMD removal n00b? What kind of tweezers do some of you use?

09-14-2014, 14:31	#2 (permalink)
dog68 No Life Poster Join Date: Mar 2012 Location: cambridgeshire, England Age: 55 Posts: 760 Member: 1728699 Status: Offline Thanks Meter: 212	Try using two irons on coils, they come off easily like this .

09-17-2014, 12:44	#3 (permalink)
laptopmd Freak Poster Join Date: Jan 2013 Location: Switzerland Age: 48 Posts: 408 Member: 1873863 Status: Offline Thanks Meter: 67	use hot air with a nozzle of ~6mm and for heat try first at 260°C and eventually go up until 280°C, it should melt after 1-2min , when the solder it is melt, remove the coil and remove immediately the hot air, to not damage surrounding components.