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

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iTunes connect screen loop

I have purchased an iPhone 6 from eBay. It initially would not restore due to error message 4013 however after swapping the digitizer for my own and changing the battery it will restore through iTunes time after time but then goes back to the iTunes connect screen. The logic board etc looks mint however upon removing the sim tray I noticed a water damage indicator was red. Any suggestions would be greatly appreciated. I have MacBook Pro all original lead etc..

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You need to resolve the water damage first.

If water seeped through the SIM tray, then whatever damage it caused would most likely be on the under side of the logic board. You will need to remove the logic board to do a visual inspection. Unfortunately, most of the electronics underneath is covered in EMI shields so even if you don't see any corrosion, it may be under the shields.

  • Open your phone and remove the logic board
  • 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.

You should also consider getting a new battery if it has swollen. Resist the temptation to pop it to let the gas out. A compromised Li-ion battery is a fire hazard. If the device appears to power up but behaves erratically, then use a tool like 3uTools to flash the firmware as it may be corrupted.

A professional repair shop that does water damage repair may be able to recover your phone or the data 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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