These are the most restrictive. Official methods typically require a valid SIM card with mobile data to bind your Mi Account to the device. However, some unofficial tools or specific legacy methods might bypass this. General Steps (No SIM Required)
A loose connection can brick your device. Use the original OEM cable plugged directly into a motherboard USB port (prefer USB 2.0 ports over USB 3.0, as Fastboot sometimes struggles with newer USB 3.0 controllers). Step 1: Enable Developer Options and OEM Unlocking
Once your device reboots, you will know the process was successful if you see an icon of an or a text safety warning displayed on the boot splash screen every time the phone powers on.
He went into the date and time settings, turned off "Automatic update," and set the clock back by a few years. He restarted the phone, hoping to trick the security certificate into a state of confusion. He toggled the Wi-Fi back on, and suddenly, the gray bar flickered. He tapped it, and this time, it slid to the right. The gate was ajar [2, 5]. how to unlock bootloader without sim card
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Long-press the key to enter the Device Unlock Mode.
Use a PC with Platform Tools to run the command: fastboot flashing unlock . These are the most restrictive
Open a command prompt/terminal on your computer and type: adb reboot bootloader
| Brand | Without SIM Possible? | Workaround | |--------|----------------|-------------| | | ✅ Yes | Wi-Fi + Google account wait period | | Samsung (Exynos) | ❌ No | Requires SIM for first unlock (use old inactive SIM) | | Samsung (Snapdragon/US) | ❌ Impossible | Bootloader permanently locked | | Xiaomi | ⚠️ Partial | Some models require Mi account + SIM; try Wi-Fi + 7-day wait | | OnePlus | ✅ Yes | No SIM needed, just OEM unlocking toggle | | Motorola | ✅ Yes | Wi-Fi + Motorola ID login | | Nothing Phone | ✅ Yes | Same as Pixel method | | Huawei (old) | ❌ No | Requires SIM for unlock code request |
If the free methods above don't work, a paid service is an option. General Steps (No SIM Required) A loose connection
The phone's SIM card is often used as part of the "OEM Unlock" requirement for a few key reasons:
If your Xiaomi, Poco, or Redmi device runs on a MediaTek (MTK) chipset rather than a Qualcomm Snapdragon processor, you can completely bypass the Mi Unlock Tool, the Mi Account requirement, and the SIM card restriction by utilizing an exploit known as the MTK Bootrom bypass.
Once your phone restarts into a screen showing a disassembled Android robot or text technical specs, type: fastboot devices Use code with caution.