T28 processor desoldering problem - GSM-Forum

Gene · 08-05-2002, 20:15

Hi, all how can i desolder processor on Ericsson T28 that with compaund protection without damaging phone?
Best regards, Gene

sat · 08-06-2002, 00:08

forget about it. it's almost impossible
processor on nokia's could be desoldered much much easier. but on t28's it is really hard

george gsm · 08-06-2002, 05:18

hello,
sat it's right 100%
but if exist any solvent for that i want to know too
geo

Pandemonio100 · 08-06-2002, 14:51

It's possible to desolder CPU or other component whit glue around but you have to increase the power of the station soldering to around 400°/450°, and if have success after remove the glue for resolder the component......very hard but nothing is impossible.

george gsm · 08-07-2002, 04:00

hello pandemonio,
if we increase temperature to 450 celsius degree, cpu may be burn, don't you thing? because time to hot is longer then usualy
geo

08-05-2002, 20:15	#1 (permalink)
Gene Freak Poster Join Date: Nov 2000 Age: 46 Posts: 285 Member: 2564 Status: Offline Thanks Meter: 1	T28 processor desoldering problem Hi, all how can i desolder processor on Ericsson T28 that with compaund protection without damaging phone? Best regards, Gene

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08-06-2002, 00:08	#2 (permalink)
sat Freak Poster Join Date: Aug 2001 Location: GSMLAND Posts: 479 Member: 5764 Status: Offline Thanks Meter: 2	forget about it. it's almost impossible processor on nokia's could be desoldered much much easier. but on t28's it is really hard

08-06-2002, 05:18	#3 (permalink)
george gsm No Life Poster Join Date: Jul 2002 Location: Bucharest-Romania Age: 51 Posts: 1,160 Member: 14200 Status: Offline Sonork: Sonork id Thanks Meter: 117	hello, sat it's right 100% but if exist any solvent for that i want to know too geo

08-06-2002, 14:51	#4 (permalink)
Pandemonio100 No Life Poster Join Date: Feb 2001 Location: ITALY Age: 51 Posts: 3,969 Member: 3381 Status: Offline Thanks Meter: 1,171	It's possible to desolder CPU or other component whit glue around but you have to increase the power of the station soldering to around 400°/450°, and if have success after remove the glue for resolder the component......very hard but nothing is impossible.

08-07-2002, 04:00	#5 (permalink)
george gsm No Life Poster Join Date: Jul 2002 Location: Bucharest-Romania Age: 51 Posts: 1,160 Member: 14200 Status: Offline Sonork: Sonork id Thanks Meter: 117	hello pandemonio, if we increase temperature to 450 celsius degree, cpu may be burn, don't you thing? because time to hot is longer then usualy geo