I have a A20 phone & i want to reset it back to factory settings

Nice to meet you, *****!
Do you mean it's a Samsung A20 phone, is it correct?

Alright, thank you! May I ask you why you would like to reset it? Or would you like to have it like a new one?

Alright, got it, *****
May I ask you, is your phone turned on at the moment?

Alright, in such case, let's try to reset it from Settings
*****, may I ask you to open on this phone:

1. Settings
2. Select the General management option
3. Scroll down till you have Reset option

Take your time, please

Alright, thank you. Do you have there option Factory Data Reset option?

Could you please press on it, then press on Reset option again

Great! If you have option 'Delete all' press on it, please

Hmm, alright, could you connect this device to you home Wi-Fi ?

Should I guide you, or do you know how to do it, *****?

Alright, so is it connected at the moment?

Alright, so you press on Deleted all options, is it correct?

I'm sorry, is it asking for password or PIN?

Alright, may I know what does it say?

Alright, because she setup this phone, *****, and its asking for an email. May I ask you, do you know what is the email or could you ask your sister about it?

Alright, got it! So, we can continue tomorrow, or we can try to reset it using another option. What would you like to try, *****?

You have to ask her for her email, she used to set up this phone. Then, when you enter the email, it will send the code. You or your sister have to open this email and check the code
Or
If you don't want to wait, we may try another option to reset the phone, it may bypass the email
Sure, take your time, please

Alright, may I ask you to turn off your phone?

Alright, may I ask you to press and hold simultaneously the volume up and power button until you see Android Recovery Message on the top ?

Thank you. May I ask you to use the volume down button and select Wipe data/Factory reset ?

Alright, may I ask you to press Power button to select Wipe data/Factory reset ?

Thank you. Then select Factory data reset with volume down button, then press on Power Button

Alright, it should say on the bottom Data wipe complete. Do you have it?

Alright, then select Reboot system now and press Power button, please

Alright, keep me updated, please

Let's wait, please

Thank you

Alright, could you press on start, please?

Alright, so, what does it say now?

Alright, so you have to press Agree, Next, Yes if you have these options

Alright, keep me updated, please

Alright, thank you

May I ask you what options can you select there?

Select Don't copy, please

Alright, keep me updated, please

Does it say Sign in with your Google Account?

Hmm, alright, take your time

Thank you, *****, keep me updated

Great job. May I ask you what does it say on your screen?

I'm sorry, are you able to select Next, Skip or OK there?

Hmm, I'm sorry, *****, what does it say on the very top of this page?

Oh, well, so you are ready to go! As I can see the phone is set up

Great! Thank you for your time, *****
Can we consider this case solved?

Thank you for your time
Is there anything else I can do for you at the moment, *****?