Use only cables compatible with the unlock software.
See cable compatability chart to determine which cable fits your phone.
Multiserver or Cruiser cables require drivers to be installed prior to connecting the phone.
# Help : Display available help on selected phone and model
# Brand & Model : Dropdown lists to select needed phone brand and model
# Unlock Menu : Click to activate unlock menu and access unlocking functions
# Flash Menu : Firmware upgrade, debrand, decustomize, change main phone language
# GDFS Menu : This function is used in conjunction with ARM+AVR flashing. It removes remaining operator customization, branding, settings and start up logo
# Unlock Phone + Read User Lock Code : Press to perform the selected functions (credit discounted)

# Check RSA or Test Cable : Press to test cable (no credit discounted)
# Port : Select from available com ports
Problem determining which port to select?
# Cable Speed : Select lower speed for more stable connection
# DTR, RTS options : Check/Uncheck if phone can not connect to PC
# Original Sony Ericsson PC-Suite USB Cables : Select one of the checkboxes for the cable you are using
# Username & Password : Enter username and password
# Info : Press to check available credits
# Download area : Access to download area
# Generate ATS : Check to enable ATS error reporting. In case of error email .ats and .jpg files located in program folder to Sony Ericsson z525

# Output screen
# Select Firmware : Select firmware that previously was downloaded from the download area of the TMS server
Select Default Language : Select language file that previously was downloaded from the download area of the TMS server's download area
# Disable Camera Shutter Sound while Flashing : Check off to disable camera sound when taking pictures with your mobile phone. This is optional.
# EROM Repair Current Phone Color : Available options are Blue, Brown, Red.
This "color" defines what kind of phone we are dealing with. BLUE phones has been assembled at the factory, but have never been programmed with software/GDFS/IMEI (remember, IMEI number is stored in the OTP, One Time Programmable memory) BROWN phones are "developer phones", for testing. Less restrictions are present, as these are used for "debugging" or "beta" purposes.RED phones are your typical retail ones.
# EROM Repair Repair / Reflash Phone EROM : Use for changing selected EROM type. Should be used to repair dead after flashing phones, before model conversion (e.g. Sony Ericsson V800 to Z800 or Sony Ericsson K750 to W800 conversion). When changing EROM for model conversion purposes use BROWN from the dropdown list. (no credit discounted)
Another value associated with EROM is CID. CID = This "number" defines the version of SE's protection present in the phone. New CIDs are deployed from time to time, for the sole reason of preventing them from beeing unlocked/flashed/tampered with by non-SonyEricsson service tools. Current CIDs in use by SE are 29, 36, 37, 49, 51.
When flashing (debranding, upgrading firmware etc) always use the same or greater CID than the one currently in your phone. Don't use flash files with lower CID numbers. .
# Program Files to Phone Memory : Press to perform the selected functions (credit discounted)