Nokia N91

The Nokia N91 is a mobile phone that was released to the public in April of 2006. It is part of the Nokia Nseries range of mobile phones. It features a 2-megapixel camera and a 4GB (8GB in a revision released later that year) hard drive to store approximately 3,000 songs encoded in either AAC, AAC+, eAAC+, MP3, mp3PRO, WAV, MIDI, or Microsoft's WMA format. It also features 3G and wi-fi connectivity. The phone features a 176 x 208, 262,144 colours TFT LCD display and dedicated music functionality buttons (XpressMusic) that slide down to reveal traditional mobile phone keys. Battery life when solely playing music has been estimated at 12 hours.

In advertisements for the phone, Nokia recommended Bose and Sennheiser headphones.

An 8GB variant, internally known as N91-2, was also released. This upgraded model features some minor improvements in addition to the extra storage space. It is re-called as the best audio quality ever through headphones.Contents [hide]
1 Operating System
2 Problems and Criticisms
3 In popular culture
4 References
5 External links
6 Reviews

Operating System

The phone features the Symbian Series 60 Operating System. It was the first phone with the Symbian OS 9.1 operating system to be released.
Problems and Criticisms

There have been a few problems with the N91, namely connecting the phone to a Macintosh computer. This will often cause the phone to crash as the two units are disconnected and music files are often not recognised despite being loaded into the phone's hard drive. Also, in old firmware versions, when you install a new theme, it will reset itself back to the default theme. Users can update the firmware using Nokia's PC Suite.

In the Philippines, there was an incident involving an N91 being used with one of Nokia's 46 million recalled BL-5C lithium-ion batteries[1], and exploded as a result