From Misc Data Digs
The Samsung SGH-T379, also known more simply as the Samsung Gravity TXT is a T-Mobile exclusive slider phone released in August of 2011. It has an ST-Ericsson PNX6710 System-On-Chip which includes an ARM926EJ CPU.
Hidden Flash Player
This is in no way documented on any user manual, but this phone actually supports Flash .swf files up to version 7 from the SD card. You can use the number pad or the slider keypad to interact with a Flash applet, and a fullscreen option exists too.
Software Build Date
This can be found by entering the Admin Setting code at the dial screen, pressing Internals, and then going to Build Information.
Type: Sysol7210 Build number: 00 Builder: SAMSUNG Host name: SAMSUNG Date: 06 21 2011 Time: 16:25:00 Bin size: 00 bytes Checksum: 0x0 View: T379UVKF9
Sysol7210 is incorrect, as this device actually has a PNX6710 SoC, part of what is known as the "Swift" chipset.
Software Update Sound
A "Software Update" function exists in the settings of this phone, but a software update was never released. Thus, the sound that was supposed to play when a software update was available goes unused. The sound is the same as T-Mobile notification sound on modern Android.
It's actually possible to trigger a test software update notification in one of the debug menu options.
Hidden Developer Messages
Inside of the phone's firmware are 5 valid Adobe Flash .swf files. The 4th file contains credits from someone who potentially worked on the software or the Flash Lite-based UI elements on this phone.
var info_date = "2008_03_05"; var info_worker = "Byoung Jae Kang"; var info_flash = "Flash Lite 2.0"; var info_version = "BDI_HC05_2000";
Secret Dialer Codes
When entered on the dial screen, the codes below do what is described.
*#0206*377# - Dumps RAM contents to a UART interface
*#0*# - LCD Test
*#6984125*# - Admin Setting (Master key is *#9072641*#, Operator code is *#73561*#)
*#33284*# - Debug Level Menu
*#197328640# - Service Menu