The Apple iPhone 5s was announced on September 10, 2013. Repair of this device is similar to the previous models, and requires screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Silver, Gold, and Space Gray.

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Water damage and ultrasonic cleaner

Hi. This is my first post here on ifixit.com

Firstly i would like to thank you ifixit for everything you have been doing for us.

Secondly here is my problem with water damage iphone 5s

I have been working in electronics for a couple of years and repairing iphones for a year or so.

I have bought a water damage iphone 5s which is very badly coroded. I dont know how long ago the water damage happened because the corosion dont want to go away..We have at work something like a foam corosion cleaner that we use to clean PCBs but it didnt do anything to it..Now my question is

Does Iphone 5s motherboard have any crystals ?

I would like to put it to ultrasonic cleaner but im afraid of damage it...

Do you think its safe to put it in to ultrasonic cleaner?

Thank you for your help

I hope you understand my english

Answered! View the answer I have this problem too

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Here's the deal. That board is never going to work again unless you do some microsoldering to remove oxidation, reflow corroded solder joints, and replace damaged components. Hopefully you won't also need to do hours of troubleshooting to then figure out which bga chips have been damaged by the short circuit heat from someone leaving it on a charger for days while they crossed their fingers.

There is no need to spend any time at all worrying about ultrasonic cleaning. At the end of the day, no amount of cleaning is going to be able to restore damaged components and re-connect broken electrical lines. All this talk around the internet of various chemicals and techniques for cleaning water damaged boards is only useful to a point---if your board has old water damage, and is "very badly corroded" in multiple sections of the board then (in my experience) it has a less than 10% chance of restoration through the use of chemicals/brushing alone not matter what magic solution is used. It has a 90% chance of wasting an extraordinary amount of time that you could be using to repair a board that does have a chance of recovery.

But yes, you can for sure pop it in an ultrasonic cleaner and not damage it. But of course it won't save it either.

Thanks for your post, though, I really like my harsh little rant and I think I'm going to copy it to paste again in the future ;)

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Hi and thank you for your answer

I managed to clean the motherboard but now im having one problem after dead red screen i get error 4013 or 4005 in iTunes..I have a feeling that some components have been damaged on the board..I have used this motherboard in another iphone 5s and getting the same error 4013 or 4005. ..I ran out of ideas that i have found on the internet..I have changed flex cables, charging port, battery, home button, i deleted itunes and installed it again but NOTHING AT ALL SEEMS TO BE HELPING ME...

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yes, exactly as predicted above. "That board is never going to work again unless you do some microsoldering to remove oxidation, reflow corroded solder joints, and replace damaged components. Hopefully you won't also need to do hours of troubleshooting to then figure out which bga chips have been damaged" and just to be clear, by 'replace damaged components' I mean replaced damaged SMD components on the board---this is non-functional never-gonna-be functional board. No amount of cleaning or replacing screens, antennas, cameras etc and then hoping iTunes will clear it up will solve. You can't solve a corroded board without specifically addressing the corroded components on the board.

My advice: throw this board in the trash and focus on phones that may be salvageable.

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Ever get a sense of deja vu?

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Had a bit of trouble understanding your question, but yes, I have used a ultrasonic cleaner for 5S boards before, and it did not damage the PCB or components.

Also please comment on this answer what you mean by crystals? Crystal oscillators will not be affected.

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Hi..Yes i meant crystal oscillators...Thank you for your answer.

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