To my understanding of the codes, the Custom Reset resets the phone to the way it came by default "out of the box" in terms of the wallpaper, ringtone, message tone, backlight display time, and basically anything that the User could have changed.
The Full Reset resets everything above to include the security code and deletes in some cases any files uploaded/downloaded to the phone such as ringtones, wallpapers and any new WAP/MMS settings that did not come with the original firmware.
If you feel that you have to correct some of my posts for my capitalization of some of my words, then just bear with it. It's just a discussion forum where some may be limited by time to answer in well-versed and eloquent sentences.
I already got a PHD (Plain High School Diploma) so ignore my style of writing and I'll ignore your ignorance.
Subject: You can read this-trust me!
I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdgnieg. The phaonmneal pweor of the hmuan mnid. Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it wouthit a porbelm.
Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Amzanig huh? yaeh and I awlyas thought slpeling was ipmorantt!
When asked if I see the glass half empty or half full, I responded I see just a glass of water.
Now you know how I think.