View Full Version : Removing components from GSM
Ice Dragon
02-27-2001, 10:28
Reading previous posts, I read about removing flash, eeprom and cobba.
I have a busted, non-responding 5110 and want to remove the flash, eeprom, and other components for experimenting.
Flash IC alone seems difficult to remove. What do people mean with "heating air"?
Anybody have any ideas....?
Hi Ice Dragon
Heating with air is what it sounds like instead of convensional soldering iron which would be no good to remove modern smt and even newer packages, the only way to remove these is with a special hot air iron which is controllable air flow and temperature to heat component, usually following manufacturing advice and remove usually with a spring loaded adapter this technology is not cheap however expect to pay about 500-2000UK pounds for a decent setup, 500 UK pounds will buy you a thermo jet iron with a few acsessories upto 2000 for a complete rework station. obviously prices can vary depending on quality.
Regards
Charlie
PS: yes I do have one, and mine was cheap at 900 UK, if your serious about electronics you must have one, as you cannot take of some of the new packages available today eg: flatpacks,PLCC,LCCC
Regards
Charlie
Hello Charly and all, i have a tip for all...if you want to desolder SMD get a butane powered soldering iron who's head can be removed to show a ***** flame, use this to heat the components you want to take off...you need some skill to do this practice on a dead circuit you will find by getting a wedge shapoed small scredriver you will be able to remove most small IC's i.e PICs and 24xx chips...a cheap one can be found at Maplin i think they are around 12 quid http://www.thoic.net/gsm/ubb/biggrin.gif
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Regards...Bads
naslam2@hotmail.com
Hi Bads
Sorry i have not had time yet to answer your email.
The Idea of using a butane torch terrifies me.
But if it works for you so be it, but all in all this maybe? ok for smt work, but it will be no good for cobba, ccont and other flatpacks, as there is no where to direct flame as there are no pins used at all, its all done with micro solder balls underneath the flatpack and will be imposible to do this way.
Regards
Charlie