How to Unroot Samsung Galaxy S9/ S9 Plus? [Two Methods]
Is it possible to root the Samsung Galaxy S9 Plus SM-G965F/DS phones that are all over eBay? They seem to have a firmware without an OEM unlock button. - Quora
How to root Samsung Galaxy S9
How to Unroot the Samsung Galaxy S23 and Return to Original Stock Firmware - KrispiTech
HOW TO: Unroot Galaxy S9 / Galaxy S9+ with Official Firmware
How to Unroot Samsung Galaxy S9/ S9 Plus? [Two Methods]