Can I put a 128gb or 256GB logic board into a 64GB iPhone 11 model?

Hi Jamie,

Okay, in terms of the hardware, yes it is 100% compatible and the memory size has no relation to any other part of the phone so any version will theoretically work.

I say theoretically because Apple has gone on a rampage locking down parts to the motherboard. If the motherboard is the only thing you change out, you can expect the following issues to show up.

• Face ID will be gone permanently
• True Tone and Auto Brightness will no longer work
• The battery will give you a warning message that it might not be genuine (even if it is) and you will lose the ability to view the battery health information
• The display will likewise give you a non-genuine message

You can keep the Face ID if the logic board you purchase comes with the front camera assembly and the earpiece speaker assembly that are paired to that motherboard.

True Tone and Auto Brightness can be reprogrammed with a device programmer such as the JC V1SE or the QianLi iCopy.

The battery is a bit trickier, as you have to have the BMS board off the original battery, which you're not likely to get with a replacement logic board. You'd have to have Apple replace the battery to eliminate that problem.

Getting rid of the screen warning would require replacing the Touch Module on the display with the original; again, not a part you're going to get with a replacement motherboard. Again, the only way to get rid of it would be to pay Apple for a screen replacement.

So yeah, in general most phone functions will work outside of the obvious loss of Face ID and some annoying warnings, but you should know what you're getting into with trying to buy a replacement logic board.