Your password contains at least 4 characters, including at least 1 letter

[Marvs]

This has been a recurring issue/bug with Samsung Phones, ie, for some strange reasons even w/o changing the security settings, the phone just lock out and shows the message:

"Your password contains at least 4 characters, including at least 1 letter"

Read similar experiences from other members in the community and it appears samsung has not addressed this at all to the complete satisfaction (ie, not factory reset & completely erase data) of the customer for YEARS already. 

Appreciate any working lead from anyone - please be kind not to blame or assume we don't own our phones. Don't be cruel, we're here to ask for help not to read your nonsensical comments. Thank you.

[AnnMoonMan76]

Managed to get into my phone... it was the password for Work Portal. After being logged out for hours and nearly going to factory reset, I am so relieved. Work Portal has removed itself from the phone after so many wrong attempts.

[StPatrick18]

I'm having the same issue after a software update on my Note20 Ultra 5G. I don't remember setting a password and if I did, all the passwords that I use are written on my notebook. Also, there are green lines appearing on my screen. I called the customer service number, and they said it need to be reformatted. If they haven't removed the option in FindMyMobile to unlock my device this won't be an issue. I don't want to lose all of my data stored in my device. If Samsung can't fix this, I'll will a file case against Samsung for this kind of issue!!!

[Kimmy33]

What do you mean it was the password for work portal?? What is work portal lol