Some iterations of this tool include features to remove Mobile Device Management (MDM) profiles typically found on corporate-owned devices. Carrier Unlock/GSM Reset:
But what exactly is this software? Is it safe? Does it still work with modern iOS versions? This article provides a comprehensive, unbiased review of the Free iPhone GSM Tool v2.6, exploring its features, intended use cases, risks, and how it compares to modern alternatives.
Restore your iPhone, iPad, or iPod touch from a backup - Apple Support
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What and iOS version are you trying to fix?
you have an old, jailbroken iPhone 5/5s on iOS 9/10, a spare Windows 7/10 PC, and you’re okay with reinstalling Windows afterward. For carrier unlock, use a reputable IMEI-based service ($5–$30). For iCloud removal, contact Apple with proof of purchase.
Modifying internal carrier bundles to allow the use of any SIM card on a network-locked GSM iPhone.