If you encounter network issues, you can change the region code by dialing ####682# in the dialer (this will trigger a factory reset).
Install MediaTek (MTK) USB VCOM drivers to ensure your PC recognizes the device. lenovo a7000-a flash file s228
Back up all personal data, as flashing will wipe your internal storage . Flashing Guide (Step-by-Step) If you encounter network issues, you can change