LITEON DG-16D4S - SLIM Drive not Detected after Heat Gun

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hamodwii

Senior Member
Apr 22, 2010
123
0
BAHRAIN
Hi all!

I tried to remove the epoxy glue from the slim 0272 motherboard with a heat gun and it went will (i think!) but i wanted to test it after that with jungle flasher and the drive just cant get detected!

any ideas! did i burned the chip!!!

please help!
 
manwithoutname

manwithoutname

1
Jun 4, 2010
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You most probably damaged either the MT chip it self or some smaller components. What was the purpose for removing the epoxy in anyhow?

Also I hope you got your dummy.bin before attempting that trick.
 
Martin C

Martin C

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Jan 10, 2004
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hamodwii said:
i will post pic now, so did this happened before?
Click to expand...
Oh yes, plenty of people have destroyed electronic components with a heatgun. You're not the first and won't be the last.
 
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noobnotforlong

Senior Member
Jan 31, 2012
116
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Rotherham
I mean people do the unlock with a bloody soldering iron they get from 150 to 400 c
And most production lines work at 320 to 380 c

Most heat guns only go 500 so unless you have gone mad ( it doesn't look like you have)

People have brought me birds all blistered and burnt but I still managed to transplant the ic successful

Sent from my HTC Desire Z using Tapatalk
 
Martin C

Martin C

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Lead free solder melts at 217 degrees.

Most BGA packages collapse once over 250 degrees.

I can't imagine QFPs being much different. 380 degrees? You have to be kidding.

Let's do the math.

It was working before he heatgunned it and now it's not.

Let's eliminate alien abduction too.
 
1

1almasmith

Senior Member
Aug 3, 2011
147
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You might of bent one of the leads on chip or blew off one or a few of the surfaces mount parts on the board make sure all parts are on board
 
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hamodwii

Senior Member
Apr 22, 2010
123
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BAHRAIN
OK so i Guss it must be the heat gun i checked with anther chip to see if i removed anther components by mistake and no all seems in tacked.

so to make sure this will not happen again can some one please tell me what is the perfect temp the heat gun should be and the min distance between the gun and the chip .
by the way is there away to check that chip is alive or dead u know with a digital multimeter or something?
 
Martin C

Martin C

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Can you take a good quality image of the chip from an aerial view? It's possible that what 1almasmith is saying is the case.
 
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hamodwii

Senior Member
Apr 22, 2010
123
0
BAHRAIN
Martin C said:
Can you take a good quality image of the chip from an aerial view? It's possible that what 1almasmith is saying is the case.
Click to expand...
I dont have a camera that good but u now what i noticed that on one side some pins r not straight! i will try to adjust them with something.
maybe when it got hot i should waited a little before trying to removed the epoxy straight a way with a screw deiver.
i will check today and let u know guys.

---------- Post added at 22:32 ---------- Previous post was at 22:31 ----------
DBTarmac said:
what were you using to chip/dig the epoxy off after you heated it with the Heatgun?
Click to expand...
small screw driver
 
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hamodwii

Senior Member
Apr 22, 2010
123
0
BAHRAIN
hi guys
sorry for the delay ,i found out that i connected some pins while trying to remove the epoxy
so i think made a short circuit in the chip and now its dead!!
 
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