Brand: NEC
Category: Mobile Phone
Document Type: Manual
Language: EN
Brand: NEC
Category: Mobile Phone
Document Type: Manual
Language: EN
Uploaded: Nov. 21, 2025, 8:19 p.m.
Manual Publish Date: 2006-06-01
NEC company reserves the right to modify the technical specification in this instruction manual without beforehand informing.
Welcome to select N5105 mobile phone. This instruction manual explains the excellent performance of N5105 mobile phone for details. Besides basic talking function, N5105 mobile phone and system network also provides you with multiple practical functions and services to facilitate your work and leisure activity.
N5105 mobile phone is specially designed for GSM900/1800/1900 network environment and is automatic three frequency mobile phone. With the trend that GSM is gradually becoming the standard of the communication system in the world, you will possess the free space for random communication in double frequency network.
We provides with multiple special fitting parts including charging battery and rapid charger for your selection in N5105 mobile phone, your can refer to chapter 15 of this instruction manual for the detailed description on these fitting parts. It is possible to result in danger if using fitting parts without permission from the providers, the resulted damage is beyond maintenance guarantee.
N5105 mobile phone has passed the network access test from the PRC Ministry of Information Industry, all indexes reach the requirements for national standard and acquire the “telecom device network access license" issued by the Ministry of Information Industry (license number :XX-XXXX-XXXXXX). you come across difficulty when using N5105 mobile phone, your can query and get help by national hot line consulting telephone (800-8xxxxxx) and after service telephone (800-8xxxxxx) set by NEC company.
NEC company reserves the right to modify the technical specification in this instruction manual without beforehand informing.
Different styles are used to describe different operation details in this manual, details are described as follows:
| Operation | Content description | Example |
|---|---|---|
| Display content | Represent with normal character | 0-9 |
| General key | Except for function key, all keys are represented by normal character with frame | 0-9 |
| Function key | Function keys are represented with overstriking and frame | OK |
| Menu item | Represented by italics with black body | keep alive |
Note: The pictures used in the manual are only used as the function illustration pictures, maybe your mobile phone displays differently; please take your mobile phone as the standard.
| Cell phone not unable to be switched on | Lower battery | Please charge the battery |
| Unable to dial some calls | Call barring is set | Check and cancel the call barring |
| Someone is receiving my call | Call forwarding is set | Check and cancel the call forwarding |
| Error: "Insert SIM card" | SIM card not inserted or improperly inserted | Insert SIM card correctly. If already inserted, remove it, clean the golden area with a dry cloth, and reinsert. |
| Error: "No Network not available" | Out of network coverage or physical barriers | Move to an area with better network coverage. If indoors, try moving closer to a window. |
| "Emergency call only" | No service supplier's network available, but emergency calls are possible. | If your network is unavailable, another network may allow emergency calls. |
| Error: "Invalid SIM card valid" | SIM card is locked | Insert a correct SIM card or contact the seller. |
| "Entering PUK code" | SIM card locked due to continuous wrong PIN input. | Obtain an eight-digit PUK code from the network supplier to unlock the SIM card. |