LG E405 User Manual page 252

Troubleshooting
Message Possible causes
Number not The Fixed dialling number
permitted function is on.
Impossible
to receive /
Memory full
send SMS &
picture
Files not
Unsupported file format
opening
SD card not FAT16, FAT32 file system
working supported
124
Possible corrective measures
Check the Settings menu and turn the function off.
Delete some messages from the phone.
Check the file formats that can be supported.
Check SD card file system via card reader, or format SD
card using the phone.