A: No. Never update iOS after bypassing. The unlock is software-based. An update will re-lock the device.
Using the tool is surprisingly straightforward. Follow these eight steps to unlock your device. ultfone activation unlocker new
A: Semi-permanent. It lasts until you factory reset or update iOS. If you avoid those actions, it remains indefinitely. A: No
A: Yes. After bypass, go to Settings → Sign in with your own Apple ID. iMessage and FaceTime may require re-activation. A: Yes
Legality: In the United States and Europe, bypassing Activation Lock on a device you legally own is legal. However, using it to unlock a lost or stolen phone is illegal (Theft of lost property / Computer Fraud laws). UltFone requires you to check a box confirming you own the device.
Safety: The "new" version is digitally signed and scanned by VirusTotal. Unlike jailbreak tweaks, it does not install persistent malware. However, always download from the official Tenorshare domain to avoid fake "cracked" versions that contain ransomware.