my mom's zenfone max pro m1 suddenly showing no service

[amitmanex]

Please tell us some basic information before asking for help:
Model Name:
Firmware Version:
Rooted or not:
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.
========================================

[fussion_ASUS]

Hi, as we can see your device is not updated to the latest version. If you have not received an auto-update message yet, you may click on the following link to download the latest update manually, request you to read the instructions before upgrading and take a full backup of the device before. Click here: https://www.asus.com/in/supportonly/ZenFone%20Max%20Pro(M1)(ZB602KL)/HelpDesk_BIOS/

[amitmanex]

fussion_ASUS

Hi, as we can see your device is not updated to the latest version. If you have not received an auto-update message yet, you may click on the following link to download the latest update manually, request you to read the instructions before upgrading and take a full backup of the device before. Click here: https://www.asus.com/in/supportonly/ZenFone%20Max%20Pro(M1)(ZB602KL)/HelpDesk_BIOS/

View post

downloaded update not showing for updation with both system update tab and manually process in which we placed the downloaded file in internal and restart the phone,please help me with the issue,i dont have another phone and mom is without phone