Fix Your Stuff Community Store

Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

4994 Questions View all

Options

Logic board gets really hot and then shuts down

I've received an iPhone 6 to repair, it wasn't turning on so I opened it up.

I took the battery out and tested it and it has completely shorted. The LCD has also been tested and isn't displaying anything.

I put a new battery in and connected an LCD and the iPhone powers up, but the logic board gets really hot. If connected to a power source, it shuts down after a few seconds on the lock screen.

No visible water damage, and no visible broken components on the front side of the logic board.

Answered! View the answer I have this problem too

Is this a good question?

Yes No
Score 0
Add a comment

2 Answers

Filter by:
Most Helpful Newest Oldest
Chosen Solution

Options

Can you confirm that the battery and LCD are known-good (tested in another device)?

If so, then your logic board has been damaged. It would be interesting to know a bit more on the history of the device(impacts, bending, cheap chargers or Lightning cables) so that we can give you more guidance.

Let us know if you are confident of taking measurements on the logic board and if you have access to schematics. Otherwise, you will need to find a repair shop that specializes in micro-soldering repairs.

Was this answer helpful?

Yes No
Score 5

1 Comment:

Don't have any access to schematics. I have a guy that does microsoldering for me but wanted to rule out other options first. The LCD and battery work good in other devices. Thanks!

Edit: not sure on history of device, no bends but there was a slight crack on the glass of the LCD. Home button flex cable felt a bit loose at the port.

by

Add a comment

Options

It seems you may have to, replace the logic board, the defective battery would have caused damage to it (electrical in nature). First do a wash with a little isoprithyl alcohol.

Was this answer helpful?

Yes No
Score 0

2 Comments:

Don't want to change the logic board as the customer hasn't backed up this one, unable to back up so far. I'll have to get microsoldering on it.

by

that be your only option, aside form my alchol suggestion good luck!

by

Add a comment

Add your answer

Lee Moore will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 908