The official iOS 15.4 is already launch for a few days. Many of us want to update it. But some of us may not be update succeed when we downloading or updating. Free Download Tenorshare ReiBoot: https://bit.ly/3pyuC1h

#iOS15.4 #updateiPhone #ReiBoot

Timestamp
00:00 Intro
00:21 Check those steps before you update iOS system
1. Check iPhone Storage have 6GB free space or above
2. Must have a good wifi connection
3. Not using VPN
4. At least 50% battery charge and connected to power
5. Turn off low power mode
01:23 Update iPhone to iOS15.4 with iTunes
02:11 Update iPhone to iOS15.4 with Tenorshare ReiBoot

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