Meizu Engineer / Factory
M91 Full Netcom Public Edition-Flyme 6.0.2.0A (Used to replace the motherboard)
M91 Telecom Edition-Flyme 5.1.5.0 (to replace the motherboard)
M91 Telecom Edition-Flyme 5.1.5.0 (used without replacing the motherboard)
M91 Mobile Custom Edition-Flyme 5.1.3.0M