Download and install the specific USB drivers for your device manufacturer (Google, Motorola, OnePlus, Xiaomi) on your computer. Preparing the Computer Environment
Wi-Fi connection and removal of Samsung/Google accounts for safety. OnePlus / Nothing Standard ADB/Fastboot commands via PC. Xiaomi / Redmi / Poco Active SIM and mobile data for account binding. General Method (No SIM Required) how to unlock bootloader without sim card
Leo didn't have a spare SIM, and he wasn't about to buy a monthly plan just for a hobby project. He sat in his dimly lit office, the glow of his monitor reflecting off his glasses. He knew that for many modern phones—especially Pixels and certain OnePlus models—the bootloader toggle is grayed out until the device "checks in" with the manufacturer’s servers [2, 5]. First, he tried the "Wi-Fi Dance." Download and install the specific USB drivers for
Samsung utilizes a security system called Knox. Many Samsung tablets do not feature SIM card slots, meaning their bootloader unlocking process is built entirely around Wi-Fi. Step-by-Step Instructions: Connect your Samsung device to Wi-Fi. Enable and toggle on OEM Unlocking . Power off your device completely. Xiaomi / Redmi / Poco Active SIM and
If your phone is (no carrier lock), you can unlock the bootloader without a SIM using only Wi-Fi on most brands. Xiaomi is the only major holdout that used to require SIM – now even they offer a SIM-free path on newer software.
Download an application like or Shizuku from the Google Play Store.