Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

3281 Questions View all

I have a question my friend

hi friends

I just repaired a u2 ic on iphone 6

Reparation success

I wanted to ask you if the original glue black on u2 ic on the picture 1

Question: what is it used for

To solidify the weld ??

If so I can put uv solder mask as in picture 2

thinkss :)

Block Image

Block Image

Mise à jour (29/07/2017)

Thank you my friend for your answer then I can cover the u2 ic with mechanic uv solder mask (green color)

For welding to be consolidated

see picture for example

Block Image

Answered! View the answer I have this problem too

Is this a good question?

Score 1
Add a comment
Black Friday
Broken doesn't stand a chance.

1 Answer

Chosen Solution

Components which have a covering over them are either sensitive to moisture in the air or have high enough voltages which can short out the component or other nearby logic.

As an example a MOSFET has a low & high voltage side which if shorted can burn it out.

It's important to re-recover them with the correct sealer as you don't want something that can be removed later if needed, and you want something thats quick! UV gasket material like Vitralit FIPG 60102 is a good choice. Using a UV light cures it within seconds. UV masking material also works its tends to be on the thinner side and a bit more expensive.

Tip: store your unused tube in a metallic antistatic bag which is UV opaque.

Was this answer helpful?

Score 3

Comments:

Thank you my friend for your answer then I can cover the u2 ic with mechanic uv solder mask (green color)

For welding to be consolidated

see picture 3 for example

thinks

by

I guess our terminology is a bit different!

The green material is not flexible or easy removed its for recovering the PCB when you do trace repairs. It is not the material to use here! You want a rubbery material which is not as hard as the green PCB repair covering material (bond).

Think: gasket - soft Vs bond - hard

by

So that advises me to cover the u2 ic after replacement

by

Yes, any potted chip needs to be re-potted!

by

What product to put on the chip to cover it

by

Show 1 more comment

Add a comment

Add your answer

Mike Plouvin will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 61