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Trinity Blue M2800 removal- question
Any tips on how to go about this? Most small coils I just destroy with a big soldering iron tip but wondering if there's a better way for this one. Hot air? Hot air plus preheater? Looks like it's going to take a lot of heat and I'd prefer the safest method as far as collateral damage goes if anyone has pulled these off before. TIA.
Well just me being overly cautious again. 420C and airflow set to 35 on my Quick 861DW did the trick. I ended removing some foil tape that I thought might protect surrounding components but ended up being unnecessary. Warmed up from a distance and then came in at about 1 inch from the surface steadily sweeping back and forth until it came off smoothly. Confirmed that the coil is shorted internally on PP_VDD_MAIN as I thought. It had shot out a solder ball and was getting hot when I connected power so this one was pretty obvious. Should have the replacement in a few days. Hope that helps if anyone has to pull one of these off in the future.
Yes, I don't think I do anything special with removing trinity. Although, I have not replaced that coil many times. I think the community is still learning about this coil. This guy has a pretty extensive writeup about the coil: https://dgpcrepairs.wixsite.com/iphone-repairs/single-post/2018/10/18/M2800---ASSASSIN
Can I ask you what were the symptoms of your phone?
As far as this phone nothing special other than this. Tristar was partially underfilled for some reason at the top end where you can't really see much as it is tucked beneath the edge of the metal frame. Must have leaked in somehow. This lead to excessive heating during removal it as it seemed the solder was not melting. It was and of course transferring heat to the opposite side of the board where Trinity is located. A ball of solder was ejected and that's when the dead short appeared. Heat was coming directly from something within M2800. I have to assume that this caused it to short internally as well as it tested bad after removal.
Thanks for the link. Good to have as much info as possible.