If you are going to reset the SCM to deal with the “MacBook Pro stuck on password screen" issue, you must check if your device has a removable battery or not. In case resetting PRAM/NVRAM does not fix the issue on the “MacBook Pro stuck on password screen” issue, there is a need to reset SMC. At this point, you can customize the settings on volume, time zone or keyboard preferences and more.
This is responsible for Intel-based Mac which has a vital role in the physical sections of the computer such as the thermal and power management, battery charging, sleep and wake, LED indicators and many more. Nevertheless, NVRAM reset is safer and faster. Recently, most Macs utilize NVRAM instead of PRAM since it oftentimes becomes unstable, requiring you to restore and fix it. This offers the same service as PRAM for users in storing certain system settings.
In the same time, it can impede the programmed operation of startup items that might affect the login process and only load the necessary kernel extensions. It will mechanically assess your startup disk and even fix any directory problems if necessary. The Safe Mode has the main purpose of protecting your device from booting from third-party files and apps. Easy Methods to Solve MacBook Pro Stuck on Password Screen
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Further Solutions to Fix MacBook Pro Stuck on Password Screen Easy Methods to Solve MacBook Pro Stuck on Password Screen Part 2.