Fix Your Stuff Community Store

Repair information and guides for the iPhone 6S released by Apple on September 25, 2015. Models: A1688, A1633

2688 Questions View all

Options

iPhone 6s stuck on Apple Logo

Hello!

I have problem with really stubborn Apple Iphone 6s...

Some time ago it has just turned off. After connecting to charger phone just shows apple logo, reset itself and it goes on and on...

My first guess was to replace u2 tristar module, but with no effect.

When stuck on apple logo, phone takes 0,14a.

Im able to get it to recovery mode, but when trying to restore, itunes shows 4005 error.

Anybody has idea what to do? Maybe some pads under u2 are broken?

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

Do you know if anything happened to the phone prior to this event? That might give you a clue on where to look. Tristar could cause this and if you aren't 100% confident that the replacement went smoothly, you could try again and while you have the chip removed, probe the pads.

However, if that doesn't help, you should consider probing the PMIC outputs for shorts and proper voltage. It could be something else which is dragging down the system. If the PMIC looks good, then take a look at PMU_RF to see if those outputs are good as well.

That's a lot of probing but it should help you find the fault.

Was this answer helpful?

Yes No
Score 2
Add a comment

Options

Try to put it in DFU mode and perform a flash. If it fails, there might be problem with the soldering of the U2.

Was this answer helpful?

Yes No
Score 2
Add a comment

Add your answer

m serwis will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 863