you can factory reset from recovery mode by following these steps.

Using the volume buttons to navigate and the power button to select:

Power off then hold Power + Volume DOWN simultaneously until the bootloader screen appears,
Use the volume DOWN button to navigate to Recovery Mode and use Power to select,
You should then see an Android lying down with chest opened,
Press Power + tap volume UP just once and immediately release both,
Use the volume DOWN button to navigate to Wipe Data/Factory Reset,
Press Power to select,
Press volume DOWN and use Power to select 'Yes',
Wait for the process to complete and then reboot the phone.

Comment réinitialiser un Moto G5. Réinitialisation d'usine, formater depuis les paramètres, restaurer les options par défaut et effacer les données

Comment faire un hard reset du Motorola Moto G5
https://www.appareilsmobiles.fr/fr/forcer-restauration/motorola-moto-g5

moto g5 Support
https://www.motorola-support.com/us-en/?page=device/motorola/moto-g5

Motorola Moto G5 - Full phone specifications
https://www.gsmarena.com/motorola_moto_g5-8454.php**_

Tests - infos
https://fr.droidchart.com/motorola/moto-g5-2585
https://www.gsmarena.com/motorola_moto_g5-8454.php

https://kb.synology.com/en-global/DSM/tutorial/How_to_reset_my_Synology_NAS_7#t2

Here's how to reset a Synology NAS, just in case something goes wrong or you manage to break DSM.
How to reset Synology NAS and reinstall OS
If changing the administrator password is not possible or you simply wish to give the NAS a full reset, here’s how to go about doing so:

Press and hold down the Reset button for about 4 seconds until a beep is heard.
Within 10 seconds, press and hold down the Reset button again for 4 seconds until 3 more beeps are heard.
Wait for the status light on your Synology NAS to blink orange or green.
Enter the IP address of the NAS into your browser.
Follow the wizard to complete the re-installation process.
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Use Erase All Content and Settings to quickly and securely erase all of your settings, data, and apps, while maintaining the operating system currently installed.