Windows update Lumia 540 - Microsoft Community

using windows phone lumia 540 dual sim, phone running on windows anniversary update 1607 facing problem it;s lock screen becomes blank @ time, 1 or 2 times in day, or once or twice in week. after updated phone windows creators update using windows insider programe problem did not fixed, phone working fine if leave issue, want know there method fix lock screen blank problem ? , @ time phone running on 1703.15063.540, receive next update(fall creators update) or not ? using windows insider or other method ?

there no further updates 540 method.

Mobile Devices / Microsoft Lumia and Nokia Lumia / Using Windows 10 on phone