What to do if my Ericsson Cell Phone is blocked, and I need to contact the operator?
If your Ericsson Cell Phone displays 'Blocked Contact Operator', it means you've incorrectly entered your personal unblocking key code (PUK) 10 times consecutively. In this case, you should contact your network provider or service operator for assistance.
How to fix Wrong PIN or Wrong PIN2 error on Ericsson T28s?
If your Ericsson Cell Phone displays 'Wrong PIN, Wrong PIN2', you should enter the correct PIN or PIN2, and then press YES.
What to do if my Ericsson T28s Cell Phone says 'No Network'?
If your Ericsson Cell Phone displays 'No Network', it indicates that there is no network within range or the received signal is too weak. To resolve this, move to an area where the signal is strong enough.
Why my Ericsson Cell Phone cannot be switched on?
If your Ericsson Cell Phone cannot be switched on, you should recharge or replace the battery. Also, make sure that the phone is properly inserted into its holder.
How to fix 'Insert Card' error on Ericsson T28s Cell Phone?
If your Ericsson Cell Phone displays 'Insert Card', it means there is no SIM card in the phone or it may have been inserted incorrectly. To fix this, insert the card correctly.
What to do if my Ericsson T28s Cell Phone says 'Insert Correct Card'?
If your Ericsson Cell Phone displays 'Insert Correct Card', you should insert the correct SIM card.
Why does my Ericsson T28s charge slowly with an alien battery?
If your Ericsson Cell Phone displays 'Alien Battery - Slow Charging Only', it means that the battery you are using is not an Ericsson-approved battery. It is charging slowly for safety reasons.
Why is there no indication of charging on my Ericsson T28s Cell Phone?
If your Ericsson Cell Phone displays 'No Indication of Charging', when you start charging a battery that is empty or a battery that has not been used for a long time, it may take a while until the indicator on the top of the phone shows a red light and the battery meter appears.
What does 'SOS Calls Only' mean on my Ericsson Cell Phone?
If your Ericsson Cell Phone displays 'SOS Calls Only', in an emergency, some operators allow you to call the international emergency.
General| Model | T28s |
|---|---|
| Network Technology | GSM |
| 2G bands | GSM 900 / 1800 |
| Network | GSM |
| GPRS | No |
| EDGE | No |
| Announced | 1999 |
| Status | Discontinued |
| Dimensions | 101.5 x 49 x 15 mm (3.98 x 1.93 x 0.59 in) |
| Weight | 98 g (3.46 oz) |
| SIM | Mini-SIM |
| Display Type | Monochrome graphic |
| Internal Memory | No |
| Call records | 10 dialed, 10 received, 10 missed calls |
| Loudspeaker | No |
| 3.5mm jack | No |
| Messaging | SMS |
| Clock | Yes |
| Alarm | Yes |
| Games | Yes |
| Talk time | 2 h - 4 h 30 min |
| Phonebook | Yes |
| Alert types | Vibration |
| Languages | Multiple |
| Battery type | Removable Li-Ion |
| Special Features | Voice dial |
Initial setup and basic preparation steps for using the T28s mobile phone.
Instructions on how to power the mobile phone on and off.
Instructions for navigating through the phone's menu structure.
Adding, editing, and deleting contacts in the phone's address book.
Guide on how to initiate calls, answer incoming calls, and end calls.
Features and operations available while engaged in a phone call.
Configuring silent and vibration alerts for calls and notifications.
Setting and changing ringtones for calls and messages.
Step-by-step guide on composing and sending SMS messages.
Managing message options like saving, forwarding, and deleting.
Managing SIM card lock and PIN/PUK codes.
Setting up a passcode to secure the phone.
Using and managing the call waiting feature.
Saving and managing calling card numbers.
Setting and using the alarm clock function.
Overview of different phone profiles (Normal, Meeting, Car, Outdoor, Home).
Introduction to online services and their capabilities.
Sending SMS messages initiated by the SIM card.
Solutions for common problems and error messages.
Specifications, dimensions, and environmental data for the device.
Essential guidelines for safe and optimal operation and maintenance of the phone.
Details regarding the product warranty, terms, and conditions.
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