Released September 25, 2015. Model A1688/A1633. Repair of this device is similar to previous generations, requiring screwdrivers and prying tools. Available as GSM or CDMA / 16, 64, or 128 GB / Silver, Gold, Space Gray, or Rose Gold options.

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Why does it only stay on when plugged in?

Hello. I bought an iPhone 6s from ebay, that was water damaged. According to the description it sounded like all I needed to do was replace the screen and battery. I bought both parts online, the screen from amazon and batteries from ebay. As I waited for the parts to come in, I took out the old battery and lcd and dipped the logic board in isopropyl alcohol, then the entire phone each for an hour and dried it with a hair dryer.

After gettingthe first battery, the screen hadn't came in yet so I plugged the phone to my laptop and itunes detected it so I knew it was charging. I left it plugged in overnight to the adapter and in the morning I disconnected the battery to have it ready and charged when the screen came in. 2 days later the screen came in and I replaced the screen. I turned it on and it showed at 46 percent, I found it kinda odd. Left it plugged in again overnight and in the morning the battery was all the way low, but the phone seemed to detect it when it was plugged in but wouldn't charge.

Thought it was the battery because itunes still detected it so I ordered another from another seller off ebay. When it came in , I swapped batteries and it turned on so I left it plugged in again and didnt charge but was still on. I plugged it in my laptop and now it doesn't detect the phonet. Odd thing is if I unplug it from the power, it turns off and won't stay on . Unsure if it could be the charging port because it was previously working and all the water damage was to the top components because the main camera doesn't work, or flash. I was able to test the mic, headphone jack, and speakers and worked fine when I got the first battery.

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2 Answers

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With water damage, you have to completely decontaminate the logic board before doing anything else, otherwise there will be latent issues down the road. That means you have to remove the shields to access the electronics underneath.

  • Open your phone and remove the logic board (follow this guide)
  • Inspect the logic board, especially around the connectors and look for corrosion.
  • Inspect both sides of the board. Unfortunately, 80% of the board is covered in shields. That's usually where the damage is occurring.
  • Put your board in a container with >90% isopropyl alcohol and let it sit for a while.
  • Use a soft brush, like a toothbrush and lightly brush away any corrosion you see.
  • Rinse in alcohol and repeat.
  • Let it air dry for a day.
  • Re-assemble and hope for the best.

/in your case, it sounds like you have a damaged charge circuit on the logic board. A professional repair shop that does water damage repair may be able to repair your phone because they have access to pro-level ultrasonic baths and specialized cleaners as well as the skills to troubleshoot your board. Many shops have a no fix/no fee policy so you don't have to spend money to find out if the phone is fixable or not.

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You should try cleaning all the ribbon cabble connectors and try cleaning the lightning connector. If it won't work even after you done that you should try an ultrasonic tank cleaning. Good luck !

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