iPhone 5s not charging

Question

iPhone 5s

Das Apple iPhone 5s wurde am 10. September 2013 angekündigt. Die Reparatur dieses Geräts ist ähnlich wie bei den Vorgängermodellen und erfordert Schraubendreher und Hebelwerkzeuge. Verfügbar mit GSM oder CDMA mit 16, 32 oder 64 GB in silber, gold und space grau.

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Hernando Berg @hernandoberg

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Veröffentlicht: 17. Mai 2017

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iPhone 5s not charging

I got in a Iphone 5s that's not charging. The charging symbols pops up when i plug in the cable but then it doesn't even show its charging. It just notices when i plug it in. I replaced the battery and charging dock already and still the same result. Anyone have an idea what could be the problem?

Is there a way how i can be sure it's the U2 charging chip? And how easy is it to replace for someone with a little bit of microsoldering expirience?

I removed the chip and tried to clean it good. I attached a few pics, what do you think? I welcome all feedback because i'm still very new to this. Waiting on the parts to arrive to solder on the new chip.

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Minho @refectio

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I think you need to define what "a little bit of micro-soldering experience" is. Attempting to replace a micro-BGA for the first time on a device that you wish to repair is a recipe for disaster. If you have some old, dead boards, you could practice on those first. If you apply too much heat, you can damage surrounding parts.

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I've done lots of soldering larger parts, but the smallest succesful microsoldering i've done is soldering the charging port on a galaxy grand prime. I have one board which i could use for practice. How much heat does it take to take it off? I can adjust the heat for my heat gun so i wouldn't want it to high.

17. Mai 2017 von Hernando Berg

There's a huge difference between a USB charging port and a micro-BGA chip. Plus, using a heat gun is like watering your flowers with a firefighters hose; I don't recommend it at all.

To do this properly, you need a hot air station with temperature & flowrate control. Look at this video (https://www.youtube.com/watch?v=n03D7a8u...). Keep in mind, Jason is highly experienced and makes it look much easier that it is.

17. Mai 2017 von Minho

Sorry, i didn't explain correctly, i have a Xtronic hot air station which i refered to as my heat gun. My mistake. I agree, with a normal heat gun it is like watering flowers with a firefighters hose. Thanks for the info.

17. Mai 2017 von Hernando Berg

No worries, you'd be surprised at how often folks think they can micro-solder with heat guns because they a saw a video on Youtube. Depending on how precise (or not) your station is, set it to ~370C with a flow rate that won't blow everything off the board. Better to start low and then increase. Also, use a nozzle of ~6mm. Practice on a dead board first.

17. Mai 2017 von Minho

Alright thank you, i will give it a try, were would you recomend buying the chip, ebay?

17. Mai 2017 von Hernando Berg

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I've done lots of soldering larger parts, but the smallest succesful microsoldering i've done is soldering the charging port on a galaxy grand prime. I have one board which i could use for practice. How much heat does it take to take it off? I can adjust the heat for my heat gun so i wouldn't want it to high. — Hernando Berg
There's a huge difference between a USB charging port and a micro-BGA chip. Plus, using a heat gun is like watering your flowers with a firefighters hose; I don't recommend it at all.

To do this properly, you need a hot air station with temperature & flowrate control. Look at this video (https://www.youtube.com/watch?v=n03D7a8u...). Keep in mind, Jason is highly experienced and makes it look much easier that it is. — Minho
Sorry, i didn't explain correctly, i have a Xtronic hot air station which i refered to as my heat gun. My mistake. I agree, with a normal heat gun it is like watering flowers with a firefighters hose. Thanks for the info. — Hernando Berg
No worries, you'd be surprised at how often folks think they can micro-solder with heat guns because they a saw a video on Youtube. Depending on how precise (or not) your station is, set it to ~370C with a flow rate that won't blow everything off the board. Better to start low and then increase. Also, use a nozzle of ~6mm. Practice on a dead board first. — Minho
Alright thank you, i will give it a try, were would you recomend buying the chip, ebay? — Hernando Berg