Apple blocks software restoration for older iPhones and iPads with cellular

Apple has stopped signing the modem firmware for several older iOS versions.

Published 4j1 sourceupdated 4j

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The fact

This decision prevents software restoration for the affected cellular iPhones and iPads.

The devices remain operational, but their software maintenance is no longer possible.

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Auto-synthesis from 1 media source · identified on July 9, 2026