Please tell us some basic information before asking for help:
Model Name: Zenfone 5z
Rooted or not: NO
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
I have few questions:
Does unlocking bootloader mean rooting one’s phone?
Can ASUS service centers unlock the bootloader? Are they allowed?
My phone was OOW but never rooted. I am convinced that the service center had unlocked the bootloader. They had handed over my handset saying that it was repaired. Besides, the model name changed from ZS621KL to ZS620KL.