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Apple's top-of-the-line smartphone for 2020. Announced on October 13th and released November 13th, the iPhone 12 Pro Max sports a 6.7" OLED display, a triple rear camera system with LiDAR, and 5G connectivity. Successor to the iPhone 11 Pro Max.

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Would replacing the motherboard have any issues?

I bought an iPhone 12 Pro Max from some marketplace seller and how foolish of me, it turned out to be iCloud locked. My question is would replacing the motherboard help set the phone up as brand new and would there be any errors when replacing it?

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I have an iPhone 12 Promax device, it was stopped working completely all of a sudden without any intervention from me

Since then, it has not opened at all, despite all attempts to revive it

Is there hope to restore it and restore it as it was?

Will I lose all my data and information stored in it?

What is the cost of its maintenance, compared to buying the latest iPhone from the current generation?

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i have the same question but mine is iphone 12 does the activation lock gone after the transplant ? how's yours doing ?

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Hi Josh,

There are a few issues with swapping motherboards alone. First and foremost, Face ID will no longer function - the front camera assembly in the housing and the earpiece/sensor assembly on the display are both paired to the motherboard and will disable Face ID if they don't match.

So in order to replace the motherboard and keep Face ID working, you'll need to also buy the paired earpiece/front sensor and front camera assemblies that go with it from the original phone. On the other hand, if you're okay with going without Face ID, then swapping the motherboard alone will do what you want.

In addition, the True Tone function may also be compromised. I'm not completely up to date on the iPhone 12 models, but when replacing a screen there's a file you need to copy off the original screen onto the replacement screen in order to keep True Tone working. I assume a motherboard swap would have the same issue; you'd need the data from the original screen to copy to your existing one in order keep the True Tone function. I'm fairly sure that's the way it would work, but maybe someone with more experience in that area can confirm or deny that.

On newer phones like the 12, Apple has also implemented more pairing with the logic board; specifically the screen and the battery now. While they'll still work, apparently you'll get a notification that one or the other might not be genuine - even if it is a genuine Apple part. Apple has a self-repair program that I understand can address those issues, but I'm not conversant with the details myself. However, as far as I know the actual functions will still work correctly despite the warning.

Hopefully if there are more restrictions, other members with more detailed knowledge will add to this thread.

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Thank you so much for that

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Don't forget to Accept the Answer. :-)

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Thanks much for providing so helpful info

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You'll get none genuine screen, none genuine battery warnings, possible power issues because the charging port is also linked to the motherboard. New iPhone are more trouble than they are worth because apple made them that way. Also a replacement motherboard would probably cost more than you paid for the phone.

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Thanks for the additional information, @strongbow. I was hoping someone more up to date on the 12s would jump in.

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Also you will lose LIdAR function on 12 Pro and beyond, that sensor is also linked to mainboard

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Hi Team,

I had IPhone 12 Pro Max which bought last year and it’s already passed now one year Apple guarantee and I don’t have any insurance. The issue what am facing is one day all of sudden my phone got hanged out and screen is not turning on I did what ever suggestions mentioned in online and even went to Apple Store and checked with them. After a detail test Apple team told me mother board have to replace and it will charge more which I was shocked with in a year that too Apple product got mother board issue and Apple team also not replacing new one until I have Apple care / with in year guarantee. Now I wanted your team help to fix my phone if it’s mother board change how many you can charge and how soon can I get delivered if I wanted to go with your team.

Please provide me details suggestions/ thoughts

Thanks

Sandeep

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josh will be eternally grateful.
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