'''Note:''' The OLPC XO-1 has some built-in protections including a lock designed to prevent haphazard software changes. In order to use either [[#Run v0.84 of Sugar on a Stick from an SD card or external USB|Option 1]] or [[#Install the v0.84 Sugar on a Stick image|Option 2]], XO-1 owners must [http://wiki.laptop.org/go/Activation_and_developer_keys request a developer key from OLPC.] It may take up to 24 hours after the request has been made to receive your developer key. | '''Note:''' The OLPC XO-1 has some built-in protections including a lock designed to prevent haphazard software changes. In order to use either [[#Run v0.84 of Sugar on a Stick from an SD card or external USB|Option 1]] or [[#Install the v0.84 Sugar on a Stick image|Option 2]], XO-1 owners must [http://wiki.laptop.org/go/Activation_and_developer_keys request a developer key from OLPC.] It may take up to 24 hours after the request has been made to receive your developer key. |