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| Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section. |
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05-03-2004, 20:01
| #1 (permalink) |
| Freak Poster  Join Date: Oct 2001
Posts: 304
Member: 7011 Status: Offline Thanks Meter: 0 | hagar reballing i have unsoldering hagar of my 8210 but impossible to resold how to do now is no power |
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05-03-2004, 21:31
| #2 (permalink) |
| Freak Poster Join Date: Nov 2003
Posts: 325
Member: 44658 Status: Offline Thanks Meter: 0 | You put the Hagar back on with the hot air station. It is not possible to re-solder it down... When you take the old hagar off, brade the solder balls, off the pcb using thin copper brade (can get it from maplin £1.49). Then get a new hagar, and place it down onto the pcb, using BGA rework flux, (maplin £4.79 ish) Line the hagar up with the 2 red lines on the pcb board, then apply your hot air station (you'll see the hagar begin to bubble, dont worry, its meant too) after bubbling dies down, then let to cool for 1 min. thanks |
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05-04-2004, 18:32
| #4 (permalink) |
| Insane Poster Join Date: Jul 2003 Location: UK
Posts: 77
Member: 34966 Status: Offline Thanks Meter: 0 | All of his procedures are dangerous... Be very cautious, All you need is a Bga Stencil, GOOD quality flux and solder balls Alternativly, You can use solder paste, Still gives the same end result... Ensure that you source a really good quality solder paste, There are lots of cheap rubbish available, That makes a bad job Last edited by Gadget; 05-04-2004 at 18:51. |
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05-04-2004, 21:04
| #5 (permalink) |
| No Life Poster   Join Date: Jul 2003 Location: Thessaloniki,Hellas Age: 44
Posts: 1,013
Member: 33547 Status: Offline Thanks Meter: 17 | One good source is warton metals which provides BGA rework jelly that liquifies when it's heated. It is ideal for "sticking" the parts on the board and then solder them. Also check out the Microprint low temp melt solder paste (which has a melt temp about 179C) http://www.warton-metals.co.uk/small...dept.asp?id=13 http://www.warton-metals.co.uk/small...dept.asp?id=10 |
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