How do I downgrade iPhone 17 from iOS 26.5.1 due to excessive heating?

Is this possible to unstall 26.5.1 because it’s too much heating iPhone 17


[Re-Titled by Moderator]

Original Title: I don’t have

iPhone 17, iOS 26

Posted on Jun 4, 2026 5:22 PM

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Question marked as Top-ranking reply

Posted on Jun 4, 2026 5:38 PM

himan17 wrote:
Is this possible to unstall 26.5.1 because it’s too much heating iPhone 17
[Re-Titled by Moderator]
Original Title: I don’t have

As Jeff Donald correctly suggests, downgrading iOS is not, nor has it ever been supported. If you just updated your phone, keep in mind that the phone is working behind the scenes to reindex millions of bytes of data, which depending on how much data is on your phone can take from a day to a few days to complete. And this is often as people are using their phones at the same time. When the phone has to work harder, it generates heat as a natural byproduct. Do follow his advice to Force Restart your phone. I do so after EVERY iOS update, without fail.



4 replies
Question marked as Top-ranking reply

Jun 4, 2026 5:38 PM in response to himan17

himan17 wrote:
Is this possible to unstall 26.5.1 because it’s too much heating iPhone 17
[Re-Titled by Moderator]
Original Title: I don’t have

As Jeff Donald correctly suggests, downgrading iOS is not, nor has it ever been supported. If you just updated your phone, keep in mind that the phone is working behind the scenes to reindex millions of bytes of data, which depending on how much data is on your phone can take from a day to a few days to complete. And this is often as people are using their phones at the same time. When the phone has to work harder, it generates heat as a natural byproduct. Do follow his advice to Force Restart your phone. I do so after EVERY iOS update, without fail.



How do I downgrade iPhone 17 from iOS 26.5.1 due to excessive heating?

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