Gua udah coba cari thread di sini, tp gak nemu. gua coba cari di google dan yahoo tp gak nemu juga. ada yg punya info secret code samsung utk liat firmware maupun hal2 lain? Dulu gua pernah punya V200 dan ada secret code utk atur contrast maupun selfcheck kyk HP SE. Sekarang gua pake D840. Kalo ada yg bs ks pencerahan atau sharing, please.

di gsm arena ad deh bos kayaknya

di read user opinions

tp yha musti sabar nyarinya page demi page

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copy paste dari melis nih,,,
SAMSUNG

*#1234# :SW Version
*#2222# :HW Version
*#0842# :Vibrator Test
*#0289# :Buzzer Test
*#0228# :Battery Statue
*#0782# :RTC Display
*#0523# :LCD Contrast
*#0377# :NVM error Log
*#5646# :Logo set
*#0778# :SIM Service Table
*#0638# :SIM Network ID
*#0746# :SIM Info
*#076# : Production no
*#2576# :SIM errors

Lock Manager

*2767*2878# :EPROM Reset
*2767*3855# :Master Reset
*#2767*63342# :Media Reset
*2767*667# :MMS reset
*2767*927# :WAP Reset

If you’re Phone will not reset by using those code:
*2767*637#
*2767*688#
#*7337#
*#9998*3323#
*#9998*[nomor disembunyikan]#
*2767*7822573738#

Unlock Code
Model: Samsung SGH-E715

Turn off the phone. Put a non-accepted SIM Card and turn it on. Type *#9998*3323#. Press Exit. Choose menu #7. After phone reboots type *0141# and hit the Call button. Turn off and insert another SIM Card. Turn on. The code is [nomor disembunyikan].

Model: Samsung SGH-M100

Type *#9998*[nomor disembunyikan]#. Then type *#9998*737#. Press >/ [] (Play Stop) until phone shows NCK/SPCK number. Press Exit. Type #0111*CODE# (Code is the last 8 digits of the NCK/SPCK)

Model: Samsung SGH-S105

Remove SIM Card. Enter *2767*7822573738# and after phone reboots, enter #0111*[nomor disembunyikan]#

Model: Samsung SGH-S307

Turn off the phone. Put a non-accepted SIM Card and turn it on. Type *#9998*3323#. Press Exit. Choose menu #7. After phone reboots type *0141# and hit the Call button. Turn off and insert another SIM Card. Turn on. The code is [nomor disembunyikan].

Model: Samsung SGH-X100

Turn off the phone. Put a non-accepted SIM Card and turn it on. Type *#9998*3323#. Press Exit. Choose menu #7. After phone reboots type *0141# and hit the Call button. Turn off and insert another SIM Card. Turn on. The code is [nomor disembunyikan].

Model: Samsung Universal

TEMPORARY UNLOCK:
Put a non-accepted SIM Card and turn it on. Type *#9998*3323#. Press Exit. You will get a new menu. Select Malloc Fail.

In newer phones:
#*7337#
Semoga membantu