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Need help?Do you have a question about the Sony Ericsson K750i and is the answer not in the manual?
Explains symbols used in the user guide for clarity and function indication.
Guides on how to put the phone together, including SIM and battery.
Details about the SIM card, its function, and handling.
Provides important information and warnings regarding SIM card and battery.
Step-by-step instructions for inserting the SIM card and battery correctly.
Instructions on how to connect the charger and charge the phone battery.
Information about the Memory Stick Duo for extra storage capacity.
Guides on inserting and removing the Memory Stick Duo card.
Explains the purpose and usage of the PIN for SIM card security.
Initial steps for powering on the phone and preparing for calls.
Detailed steps for turning the phone on and initial setup.
Basic instructions for initiating and answering phone calls.
Identifies and describes the main physical parts and features of the phone.
Explains the function of different keys and how to navigate through menus.
Covers changing phone language and using keypad/navigation shortcuts for efficiency.
Explains methods for entering text, such as multitap and T9 input.
Details on selecting and switching between writing languages for text input.
Explains how to use multitap and T9 text input methods for typing.
Describes managing T9 dictionary, adding words, and selecting writing methods.
Explains how to access and use the activity menu for quick access to functions.
Covers managing files, folders, moving, copying, and deleting items.
Details on creating folders, selecting files, copying, deleting, and formatting memory.
Basic instructions on how to make outgoing phone calls.
Information on how the phone selects and uses mobile networks, including roaming.
Step-by-step guide for dialing a number and initiating a call.
How to adjust the volume during a call.
Instructions for activating and deactivating the speakerphone.
How to mute the microphone during a call.
Explains how calls are received, displayed, and answered or rejected.
Details on the phone's ability to automatically redial failed calls.
Guide on making calls to international numbers and using country codes.
Information on making emergency calls and viewing local emergency numbers.
Covers adding, managing, and selecting default contacts.
Step-by-step guide for adding new phone and SIM contacts.
How to assign pictures and ringtones to contacts.
Instructions for calling contacts saved in the phone or SIM card.
How to automatically save contacts and manage saving prompts.
Procedures for editing, deleting, and deleting all contacts.
Setting default information (number, email) for contacts.
Setting the default item displayed for each contact.
Methods for sending contact information to other devices.
How to check memory status and synchronize contacts.
Procedures for copying contacts between the phone and SIM card.
Detailed steps for copying contacts to SIM or phone memory.
Managing call lists, adding numbers to contacts, and clearing the list.
Setting up and using speed dial numbers for quick calling.
Information on accessing and managing voicemail.
Setting up voice dialling, recording commands, and voice answering.
How to enable or disable hearing the contact name during calls.
Using voice commands to make calls from the phone or handsfree.
Setting up and using a magic word for handsfree voice access.
Activating voice answering and recording commands for calls.
Editing, re-recording voice commands, and troubleshooting tips.
Setting up call forwarding based on conditions like busy or no reply.
Activating and managing the call waiting feature.
How to make, receive, and manage multiple calls simultaneously.
Setting up and managing conference calls with multiple participants.
Managing private conversations and using multiple voice lines.
Setting up a list of accepted callers to receive calls from.
Restricting outgoing and incoming calls using a service password.
Restricting calls to a predefined list of numbers saved on the SIM card.
Checking call duration and costs.
Using tone signals for services and making notes during calls.
Options to show or hide your phone number on outgoing calls.
Creating and managing groups for sending messages or managing callers.
Creating groups for sending messages to multiple recipients.
Adding and sending personal business card information.
Configuring the service centre number for sending SMS.
Writing, sending, and addressing text messages.
Inserting items into messages, receiving, and reading them.
Saving text messages to the phone or SIM card and managing memory.
Sending longer messages and creating message templates.
Setting default options for sending messages.
Setting default and specific options for text messages.
Configuring settings for sending and receiving picture messages.
Steps to compose and send MMS messages.
Setting options for sending picture messages like delivery reports.
How to receive and view picture messages.
Saving items like pictures or sounds from received messages.
Managing storage by deleting picture messages.
Using templates to create picture messages.
Configuring how picture messages are downloaded.
Sending and receiving voice messages.
How to listen to and manage received voice messages.
Configuring email accounts and sending/receiving emails.
Sending, receiving, reading, and replying to email messages.
Saving email addresses and entire messages for later use.
Procedures for deleting email messages from the server.
Procedures for deleting email messages from the server (IMAP4).
Connecting to the My Friends service for instant messaging and status.
Starting and participating in chatrooms.
Introduction to the phone's camera and video recording capabilities.
Instructions for activating the camera, taking pictures, and using zoom.
Exploring various settings and options for camera and video recording.
Guide on how to take a self-portrait picture using the phone's mirror.
Procedures for saving taken pictures and videos and sending them.
Handling pictures, viewing, and displaying them in a slideshow.
Viewing details about pictures and videos and how to use them.
Using PhotoDJ™ to edit and save pictures.
Methods for transferring pictures to other devices.
How to receive and save pictures sent via message or Bluetooth.
Viewing phone content on a remote screen like a TV.
Using the media player for music and videos, and managing playlists.
Creating, adding to, removing from, and deleting playlists.
Instructions for playing music and videos, and changing playback modes.
Using the music button and controlling media playback.
Viewing media information, adding media, minimizing player, sorting, sending, deleting.
Streaming music and videos from websites.
Setting up data accounts and streaming audio/video.
Using the FM radio, controlling channels, and saving stations.
Accessing and using the PlayNow™ service for music tones.
Listening to and downloading music tones from PlayNow™.
Selecting and managing ringtones and melodies.
Adjusting ringtone volume and assigning caller-specific ringtones.
Configuring vibrating alerts for incoming calls.
Setting message alerts and key sounds.
Composing and editing melodies using MusicDJ™.
Editing and sending/receiving melodies.
Creating movies by combining clips, editing video clips, and pictures.
Recording memos, calls, and using sounds as ringtones.
Selecting, changing, exchanging, and downloading themes.
Starting, ending, and downloading games.
Initial setup for Internet, messaging, and other connectivity services.
Navigating the web, selecting profiles, starting and stopping browsing.
Creating, editing, and managing website bookmarks.
Downloading content like pictures, themes, and games from websites.
Managing stored cookies and passwords for internet access.
Setting up internet profiles for Java™ applications.
Activating secure connections (WAP/HTTP) and using trusted certificates.
Verifying and managing trusted certificates on the phone.
Synchronizing phone data with computers or the internet.
Introduction to Bluetooth capabilities for wireless connection.
Turning Bluetooth on/off, adding devices, and organizing the device list.
Managing power saving features and setting the phone's Bluetooth name.
Controlling phone visibility and sending/receiving items via Bluetooth.
Procedures for sending and receiving data using Bluetooth.
Pairing and adding Bluetooth handsfree devices to the phone.
Managing audio transfer during calls with Bluetooth handsfree.
Selecting audio sources during calls and directing sound.
Using the phone as a remote control and transferring files via computer.
Establishing connections and transferring data using the infrared port.
Turning on the infrared port and connecting devices.
Transferring files between the phone and computer using a USB cable.
Setting the current time, date, and their formats.
Setting alarms, including recurrent alarms and alarm signals.
Managing active alarms, changing time, and turning them off.
Managing calendar entries, appointments, and setting reminders.
Configuring when reminders should sound, even when the phone is off.
Navigating the calendar, changing dates, and accessing advanced settings.
Sending and receiving appointments with other devices.
Creating, viewing, and managing tasks, including setting reminders.
Sending, receiving, and synchronizing tasks and notes.
Selecting, changing, and renaming phone profiles.
Renaming profiles and using the stopwatch function.
Setting the timer and adjusting screen brightness.
Customizing start-up screens and using the calculator.
Information about running and downloading Java™ applications.
Managing security settings and permissions for Java™ apps.
Adjusting screen size settings for Java™ applications.
Understanding and managing the SIM card lock feature.
Unlocking the SIM card, editing PIN, and turning the lock on/off.
Using automatic and manual keypad locks to prevent accidental use.
Securing the phone against unauthorized use with a lock code.
Configuring automatic phone locking and managing lock codes.
Storing security codes and using checkwords for access.
Troubleshooting issues with passcodes and the code memo.
Addressing problems with slow performance or low memory capacity.
Troubleshooting problems related to battery charging and phone power.
Resolving issues with the phone turning off, SMS, and MMS.
Troubleshooting Internet, Bluetooth, and USB data transfer problems.
Steps for resetting the phone to factory settings.
Explains common SIM card related error messages and solutions.
Troubleshooting PIN/PUK blockages, codes not matching, and network coverage issues.
Resolving problems related to phone locking and lock codes.
Information on PUK blocking and advice on using non-approved batteries.
Information on accessing online support and software updates.
Guidelines for safe handling, environmental care, and efficient phone usage.
Proper antenna use and tips for efficient phone operation.
Explains RF exposure guidelines and SAR values for mobile phones.
Warnings about potential interference with pacemakers and medical devices.
Safety instructions regarding children playing with the phone and accessories.
Guidelines for proper disposal of electrical and electronic equipment.
Safety precautions for using the phone's power adapter.
Important notes about the reliability of emergency calls.
Recommendations for charging, using, and caring for the battery.
Information on responsible battery disposal methods.
Details on the product's warranty, service, and what is covered.
Information regarding compliance with FCC rules and regulations.
Statement of conformity with relevant radio equipment and safety directives.
Explains the meaning of various icons displayed on the phone screen.
General| Display Type | TFT, 256K colors |
|---|---|
| Display Size | 1.8 inches |
| Resolution | 176 x 220 pixels |
| Main Camera | 2 MP, autofocus, LED flash |
| Video | Yes |
| Selfie Camera | No |
| Stand-by | Up to 400 h |
| Talk time | Up to 9 h |
| Internal Memory | 34 MB |
| Card Slot | Memory Stick Duo Pro, up to 2 GB |
| Weight | 99 g (3.49 oz) |
| Dimensions | 100 x 46 x 20.5 mm (3.94 x 1.81 x 0.81 in) |
| Status | Discontinued |
| Network | GSM |
| 2G bands | GSM 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | Class 10 |
| SIM | Mini-SIM |
| Call records | 30 received, dialed and missed calls |
| Alert types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm jack | No |
| WLAN | No |
| Browser | WAP 2.0/xHTML, HTML(NetFront) |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.0 |
| Colors | Black, Silver |
| Battery | Removable Li-Ion 900 mAh battery |
| Announced | 2005 |
| Phonebook | Photo call |
| Bluetooth | 1.2 |
| Radio | Stereo FM radio |
| USB | Yes |
| Messaging | SMS, MMS, Email |
