After USB driver has been successfully installed, the PC's Device Manager will display Samsung related additions under Modems, Ports, & Universal Bus Controllers.
In this case, COM4 is used for connecting SCH-u700 with PC.
First step is to open QPST's Configuration:
Under Ports tab, use Add New Port button to select the communication port assigned to the mobile phone. Otherwise, it should automatically show the port enabled & associated with phone (SURF6550-ZRF6500 NAND16) via USB.
Under Active Phones tab, it will also display similar information as in Ports tab. However, the Phone Number displayed here is not the mobile's number to receive phone calls (aka. Mobile Device Number), rather its Mobile Identification Number. ESN is the phone's Electronic Serial Number, similar to the Media Access Control address (aka. MAC) of a PC's Network Interface Card.
After selecting EFS Explorer, which is QPST's Graphic User Interface (GUI) used to transfer files between PC & mobile phone,
it will once again confirm Phone Selection:
To add ringtones to Samsung Gleam SCH-u700, simply drag & drop the desired audio files into
/brew/mod/19920/ringtones/
In this case, theme songs from Stargate SG1 (SG1.mp3) & Atlantis (SGA.mp3) were used.
Restart the phone when prompted.
