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

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Is it good practice to ultrasonic board after any rework

Hi , i have just repaired an iphone 6 board (shorted cap) there is no sign of water damage , should i ultrasonic the board any way after any rework or is it unnecessary ?

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If the board was water damaged, then absolutely!

However, if you did a very localized fix and there isn't flux residue all over the place, I believe it's appropriate to clean the board locally with IPA or Flux Remover. Ultimately, you want the board looking like new, or as close to that as possible.

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I'm of the "spray it with 99% IPA and move on" school of thought.

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there was no water damage whatsoever , it was 1 cap near the edge of the board .

if i ultrasonic it , would have to remove all the shields ?

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Your example is where it doesn't make sense to put it in the bath. If the shields were already off, then sure, why not. But if all you changed is the cap next to WLAN chip and you don't have flux all over the place, then no, it's not worth it.

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it was C0634 ,the board looks clean so i will put it back as is , thanks for the advice ..

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markparnell1972 will be eternally grateful.
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