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Current version by: Minho ,

Text:

You took the right approach but you need to remove the EMI shields to do a proper cleaning.
 
* Open your phone and remove the logic board (follow this [guide|20246|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.
 
You should also replace the 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 [http://www.3u.com/|3uTools] to flash the firmware as it may be corrupted.
 
AIf this doesn't work, then you have a logic board issue and this kind of troubleshooting requires the schematics, specialized tools and experience. 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.
AIf this doesn't work, then you have a logic board issue and this kind of troubleshooting requires the schematics, specialized tools and experience. 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.

Status:

open

Original post by: Minho ,

Text:

You took the right approach but you need to remove the EMI shields to do a proper cleaning.

* Open your phone and remove the logic board (follow this [guide|20246|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.

You should also replace the 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 [http://www.3u.com/|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.

Status:

open