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How can I update my Android KitKat 4.4.4 to Lollipop on mobile data?
What should I do if I don't have access to Wi-Fi?
If you don't have access to Wi-Fi, you could try using a public Wi-Fi hotspot, but make sure to protect your connection with a reputable VPN service. Otherwise, you can also consider upgrading your mobile data plan to one with more generous data allowances to accommodate the update.