A method for unlocking a lock may include receiving, via a network, a first service request to unlock a lock from a terminal device. The first service request may be associated with a wireless connection between the lock and the terminal device. The method may also include transmitting, via the network, a password associated with the first service request to the terminal device and receiving an input associated with the terminal device. The method may further include determining whether the received input satisfies an unlocking condition and actuating, based on a result of the determination that the received input satisfies the unlocking condition, a locking mechanism to unlock the lock.