Nokia 6681 Features and Secret Codes

Features:

• GSM 900 / 1800 / 1900.
• Dimensions: 108.4 x 55.2 x 20.5 mm, 104 cc.
• Weight: 131 g.
• Display :Type TFT, 256K colors, Size :176 x 208 pixels, 2.1 inches, 35 x 41 mm.
• Ringtones :Type Polyphonic (48 channels), Monophonic, MP3, True Tones.
  Customization.
• Vibration: Yes.
• Memory.
• Phonebook: Practically unlimited entries and fields, Photocall.
• Call records: Detailed, max 30 days.
• Card slot: RS-DV-MMC, 64 MB card included, Hot swap.
• 8 MB internal memory.
• GPRS: Class 10 (4+1/3+2 slots), 32 - 48 kbps.
• HSCSD: No.
• EDGE: Class 10, 236.8 kbps.
• 3G: No.
• WLAN: No.
• Bluetooth: Yes, v1.2.
• Infrared port: No.
• USB: Yes, Pop-Port.
• OS: Symbian OS 8.0a, Series 60 2nd Edition.
• Messaging: SMS, MMS, Email, Instant Messaging.
• Browser.
• WAP 2.0/xHTML.
• Games.
• Colors: Electric Blue, Pearl White.
• Camera: 1.3 MP, 1280x960 pixels, video, flash.
• Push to talk.
• Java MIDP 2.0.
• MP3/AAC/MPEG4 player.
• T9.
• Built-in handsfree.
• Battery :Standard, Li-Ion 900 mAh (BL-5C).
• Stand-by: Up to 240 h.
• Talk time: Up to 6 h.

Secret Codes:

• *#06# : IMEI Number.
• *#92702689# : It displays - 1.Serial Number, 2.Date Made, 3.Purchase Date, 4.Date of last repair 5.Transfer User Data. To exit this mode you need to switch your phone off then on again.
• *#2820# : Bluetooth Device Address.
• *#0000# : Firmware Revision.
• 7780# : Soft Reset.
• *#7370# : Hard Reset.
• 3370# :This activates Enhanced Full Rate Codec (EFR).
• #3370#: Deactivate Enhanced Full Rate Codec (EFR).
• *#4720#: Activate Half Rate Codec .
• *#4720#: Deactivate the Half Rate Codec .
• *#0000# : Displays your phones software version.

Note all the codes will necessary work with every phone model and use at your own risk.