MUHAMMED USMAN (also goes by MOHSIN RIAZ ) - admin of www.BestCertFiles.com - IS A THIEF!! I have purchased a cert file from www.BestCertFiles.com and can confirm that the person running this site is definitely a scammer. The cert file he provided me was not even for the model phone that I had (he changed the file name to match the model phone I needed the cert file for). I confronted the person who runs the site and sold me the cert file (Muhammed Usman/Muhammed Mohsin Riaz, What's App: +923064038378 and Gmail @ mohsinriaz073@gmail.com) and he asked me to send him more money for the correct cert (claiming that I failed to inform him that my Samsung Galaxy Note 8 N950U needed a CPID based cert file). I sent him an additional $50 on top of the $60 I had already sent and he messaged me that the Note 8 no longer used CPID based cert files and that the reason I was unable to write the cert file he sent was because the phone needed to be rooted. ...