Samsung is notorious for hiding the OEM Unlock toggle. On Exynos models, it appears after 7 days of uptime or a SIM card insert. On Snapdragon (US/Canada) models, it's impossible without a carrier SIM. But for international Exynos models, here is the SIM-less trick.
Most official guides tell you to insert a SIM card, enable OEM unlocking, and wait for a carrier to "approve" the unlock. But what if you don’t have a SIM card? Perhaps you are using a Wi-Fi-only tablet, a secondary device, or you live in a region where carrier-branded phones are rare. how to unlock bootloader without sim card
General methods (model-agnostic)
Preparations (before you start)
Xiaomi officially requires a SIM card with mobile data to "bind" your Mi Account to the device. If you cannot use a SIM, your options are limited: Samsung is notorious for hiding the OEM Unlock toggle
Xiaomi is the most restrictive brand regarding SIM cards. If you absolutely cannot use one, try these steps: But for international Exynos models, here is the