Changed glued IC. - GSM-Forum

chochol · 10-15-2004, 16:01

Hi, guys anybody know the process flow about changing glued UEM or some glued IC. I have no experiences so If anybody know please let me know. Thank you.

mjane · 10-15-2004, 20:19

sir,

1. you need tools to do that..BGA rework station, tweezers, flux, solder assist, soldering gun, soldering wick, cutter and new UEM.

2. clamp the board, so when you pop up the UEM the board will not move.

3. heat the UEM (only), so the other parts will not damage. until the balls is melted. ( i think, you know if it is melted)

4. pop or lift it up the UEM with tip of your cutter. (your cutter must be sharp and tiped.)

5. after you pop it or lift it up. take it with tweezer...

6. you will see the lift over of glue and lead. (First) clean the lead using solding gun and soldering wick and then try to clean the glue by using you your solder assist or your cutter by applying a small amount of heat. ( becare full of the pattern not to lift)

7. clean it, and replace the UEM. ( i forgot, you need a software to fix the IMEI on your UEM. UFSx, Griffin or anything that can fix the IMEI)

8. hope that it help you.....

9. know more here.. http://forum.gsmhosting.com/vbb/showthread.php?t=157093

regards

chochol · 10-18-2004, 10:40

Quote:

Originally Posted by mjane

sir,

1. you need tools to do that..BGA rework station, tweezers, flux, solder assist, soldering gun, soldering wick, cutter and new UEM.

2. clamp the board, so when you pop up the UEM the board will not move.

3. heat the UEM (only), so the other parts will not damage. until the balls is melted. ( i think, you know if it is melted)

4. pop or lift it up the UEM with tip of your cutter. (your cutter must be sharp and tiped.)

5. after you pop it or lift it up. take it with tweezer...

6. you will see the lift over of glue and lead. (First) clean the lead using solding gun and soldering wick and then try to clean the glue by using you your solder assist or your cutter by applying a small amount of heat. ( becare full of the pattern not to lift)

7. clean it, and replace the UEM. ( i forgot, you need a software to fix the IMEI on your UEM. UFSx, Griffin or anything that can fix the IMEI)

8. hope that it help you.....

9. know more here.. http://forum.gsmhosting.com/vbb/showthread.php?t=157093

regards

Thank you for your opinion. I exchanged maybe 2 hundred not glued UEM but I never try to change glued so I don’t want to risk.

One more Thank you!
regards

komix · 10-18-2004, 12:18

if you want you sebd to me and i take off and put back new without problem in 20 min
i have all components for removing glued ic

chochol · 10-18-2004, 12:51

I will do that by my self, thank you for yor offer.

gsmmsngr · 10-22-2004, 14:44

Quote:

Originally Posted by mjane

sir,

1. you need tools to do that..BGA rework station, tweezers, flux, solder assist, soldering gun, soldering wick, cutter and new UEM.

OK, UNDERSTOOD

2. clamp the board, so when you pop up the UEM the board will not move.

UNDERSTOOD THIS TOO

3. heat the UEM (only), so the other parts will not damage. until the balls is melted. ( i think, you know if it is melted)

WHAT TEMP.TO BE SET ON THE HOT AIR GUN ?
IS THE INFRA-RED PRE-HEATER USED FOR THIS ?
WHAT ABOUT THE GLUE ? ANY MELTING/BREAKING/DISSOLVING SOLUTION TO BE APPLIED ON THE GLUE ? OR THE GLUE WILL ALSO MELT WITH THE SOLDER ?

4. pop or lift it up the UEM with tip of your cutter. (your cutter must be sharp and tiped.)

OK

5. after you pop it or lift it up. take it with tweezer...

OK

6. you will see the lift over of glue and lead. (First) clean the lead using solding gun and soldering wick and then try to clean the glue by using you your solder assist or your cutter by applying a small amount of heat. ( becare full of the pattern not to lift)

OK

7. clean it, and replace the UEM. ( i forgot, you need a software to fix the IMEI on your UEM. UFSx, Griffin or anything that can fix the IMEI)

CAN YOU PLEASE NAME THE HIGH TEMP.PAINT AND THE RESIN OR THE HARDNER USED WITH IT TO COVER UP THE BROKEN MASK ?

8. hope that it help you.....

OK

9. know more here.. http://forum.gsmhosting.com/vbb/showthread.php?t=157093

regards

LOTS OF THANKS AND THE VERY VERY BEST REGARDS TO ALL WHO HELP BY SHARING !!!!!!!!

usernome · 01-02-2006, 01:09

Is there any solution to remove the glue without scratching it ?

naughtycell · 01-02-2006, 08:11

Noop

. but it becomes more easier and rappid .

inat · 01-03-2006, 10:45

no need for special tool. just tweezer and hot air!

Dave.W · 01-03-2006, 11:29

look in repair faq'a there is very nice video instruction by gsm cool hawk.

very nice production!!!

10-15-2004, 16:01	#1 (permalink)
chochol Freak Poster Join Date: Oct 2004 Location: SLOVAKIA Age: 46 Posts: 178 Member: 86757 Status: Offline Thanks Meter: 12	Changed glued IC. Hi, guys anybody know the process flow about changing glued UEM or some glued IC. I have no experiences so If anybody know please let me know. Thank you.

01-03-2006, 10:45	#9 (permalink)
inat No Life Poster Join Date: May 2005 Location: Baguio City, Benguet Posts: 822 Member: 149576 Status: Offline Thanks Meter: 57	glued uem no need for special tool. just tweezer and hot air!

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10-15-2004, 20:19	#2 (permalink)
mjane Junior Member Join Date: Aug 2004 Age: 45 Posts: 39 Member: 77186 Status: Offline Thanks Meter: 1	sir, 1. you need tools to do that..BGA rework station, tweezers, flux, solder assist, soldering gun, soldering wick, cutter and new UEM. 2. clamp the board, so when you pop up the UEM the board will not move. 3. heat the UEM (only), so the other parts will not damage. until the balls is melted. ( i think, you know if it is melted) 4. pop or lift it up the UEM with tip of your cutter. (your cutter must be sharp and tiped.) 5. after you pop it or lift it up. take it with tweezer... 6. you will see the lift over of glue and lead. (First) clean the lead using solding gun and soldering wick and then try to clean the glue by using you your solder assist or your cutter by applying a small amount of heat. ( becare full of the pattern not to lift) 7. clean it, and replace the UEM. ( i forgot, you need a software to fix the IMEI on your UEM. UFSx, Griffin or anything that can fix the IMEI) 8. hope that it help you..... 9. know more here.. http://forum.gsmhosting.com/vbb/showthread.php?t=157093 regards

10-18-2004, 12:18	#4 (permalink)
komix No Life Poster Join Date: Feb 2001 Location: Latvia Age: 50 Posts: 882 Member: 3459 Status: Offline Thanks Meter: 5	if you want you sebd to me and i take off and put back new without problem in 20 min i have all components for removing glued ic

10-18-2004, 12:51	#5 (permalink)
chochol Freak Poster Join Date: Oct 2004 Location: SLOVAKIA Age: 46 Posts: 178 Member: 86757 Status: Offline Thanks Meter: 12	I will do that by my self, thank you for yor offer.

01-02-2006, 01:09	#7 (permalink)
usernome No Life Poster Join Date: Jan 2003 Location: Iassy Age: 59 Posts: 4,314 Member: 19723 Status: Offline Thanks Meter: 359	Is there any solution to remove the glue without scratching it ?

01-02-2006, 08:11	#8 (permalink)
naughtycell Freak Poster Join Date: Dec 2005 Age: 44 Posts: 277 Member: 214350 Status: Offline Thanks Meter: 17	Noop . but it becomes more easier and rappid .

01-03-2006, 11:29	#10 (permalink)
Dave.W No Life Poster Join Date: Nov 2001 Location: England Age: 41 Posts: 2,821 Member: 7653 Status: Offline Thanks Meter: 823	look in repair faq'a there is very nice video instruction by gsm cool hawk. very nice production!!!