Phone Does Not Come On

Recharge or replace the battery. Refer to the chapter Batteries and Recharging.

If the phone is powered from a cigarette lighter receptacle, using the Vehicle Power Adaptor, check that this is properly connected both to the cigarette lighter receptacle and to the receptacle at the bottom of the phone. Refer to the chapter Accessories.

Note that some vehicles disable the cigarette lighter when the ignition is turned off.

INSERT SIM Is Displayed

Insert your SIM. Refer to the instructions in the section Inserting the SIM at the end of this chapter.

The SERV Indicator Does Not Come On or the Message

NO NETW (No Network) Is Displayed

The phone has not registered on a GSM network and you cannot make or receive any calls. The reason for this is either:

The received signal is too weak. See the next section,

Received Signal Is Weak.

Problems You Can Solve

You are in an area which is not covered by a GSM network.

The SERV Indicator Flashes

A GSM network is in range but the phone will not register on it. Emergency calls (112) can, however, be made.

Received Signal Is Weak

Move the phone or the car and observe the signal strength reading in the display. The maximum reading is 5.

The strength of the received signal varies from place to place, and often you need only move the phone by as little as 20 -- 25 centimeters to obtain a stronger signal.

Large obstacles such as buildings, hills and mountains can drastically affect the signal strength and you may have to move to obtain a sufficiently strong signal.

Indoors, it is usually best to use the phone near a window.

If you use an external antenna, check its connection.

Flashing Red Indicator Light -- Alarm Signal Sounds

‘‘LOW BATT’’ flashes in the display, indicating that the battery is becoming exhausted. Refer to the chapter Batteries and Recharging.

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Ericsson GH198 user manual Phone Does Not Come On, Insert SIM Is Displayed, Serv Indicator Flashes, Received Signal Is Weak
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GH198 specifications

The Ericsson GH198 is a notable mobile phone that emerged in the late 1990s, encapsulating the early era of cellular technology. This device, popular in its time, encompassed several features and characteristics that appealed to users seeking reliable communication solutions.

One of the main features of the Ericsson GH198 was its compact design, which allowed for easy handling and portability. Weighing in at a mere 300 grams, it was lightweight compared to many of its contemporaries. The device boasted a monochrome LCD display, which, while simpler than today's standards, offered clear and readable text for phone numbers and messages. The display was complemented by a user-friendly interface, allowing for seamless navigation through features.

The GH198 operated on the GSM (Global System for Mobile Communications) standard, a significant technology in mobile telephony that laid the groundwork for modern mobile networks. GSM technology enabled the GH198 to provide enhanced voice quality, reliability, and better coverage than previous analog systems. The phone supported various frequency bands, enhancing its usability across diverse regions.

One of the standout characteristics of the Ericsson GH198 was its extended battery life. The device utilized a NiMH battery, which provided talk time of up to 12 hours and standby time of up to several days. Users appreciated this longevity, as it reduced the frequency of charging interruptions, allowing for prolonged connectivity on the go.

In terms of functionality, the GH198 offered essential features such as SMS (Short Message Service) capabilities, enabling users to send and receive text messages—a feature that was gaining popularity during its release. Additionally, the phone included a phonebook memory capacity for storing hundreds of contacts, making it convenient for users to maintain their personal and professional connections.

The Ericsson GH198 also supported functionalities such as call waiting and caller ID, enhancing the overall user experience. Its simple yet effective design made it ideal for both business professionals and everyday users looking for straightforward communication tools.

In summary, the Ericsson GH198 embodied the pinnacle of mobile technology in its era. With its compact design, reliable GSM connection, impressive battery life, and essential communication features, it played a significant role in the evolution of mobile phones, paving the way for future innovations in the telecommunications industry.
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