# 4G LTE - 250m2 (Orange/Bouygues/SFR) Mobile Phone Signal Booster

##### **Enhanced Connectivity**

  

Experience uninterrupted communication with our 4G LTE Mobile Phone Signal Booster. This device significantly enhances your cellular connection, ensuring you can stay connected with friends, family, or work without any disruptions. Its powerful technology amplifies weak signals, providing you with a reliable network even in areas where mobile reception is typically poor.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature1-1.png?v=1780277092)

##### **Wide Coverage Area**

  

Cover an impressive indoor area of up to 250 m² with our 4G LTE booster. Designed to be perfect for homes, cafes, restaurants, and other medium-sized spaces, it guarantees a stable signal coverage that reaches every corner. Say goodbye to dead zones and enjoy seamless connectivity throughout your space.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature2.png?v=1780223075)

##### **Rapid Uploads and Downloads**

  

Boost your internet experience with faster upload and download speeds! Our 4G LTE booster optimizes data transmission, allowing you to stream high-definition videos, conduct video calls, and download files in no time. Get the speed you need to enjoy online activities without frustrating delays.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature3.png?v=1780223075)

##### **User-Friendly Installation**

  

Forget about complicated setups! The 4G LTE Mobile Phone Signal Booster is designed for easy installation. Simply connect the indoor and outdoor antennas and follow our straightforward setup guide. No professional installation is required, enabling you to enhance your signal within minutes.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature4.png?v=1780223075)

##### **Compatible with Major Carriers**

  

Our signal booster works seamlessly with major mobile networks, including Orange, Bouygues, and SFR. It's an excellent solution for users of various carriers, ensuring that everyone can enjoy stable and enhanced mobile signals without needing additional equipment or complex configurations.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature5.png?v=1780223075)

##### **Long-Lasting Performance**

  

Constructed with durability in mind, the 4G LTE Mobile Phone Signal Booster is built to last. Its high-quality components ensure consistent performance and efficiency, giving you peace of mind that you'll enjoy elevated signal strength day after day, year after year.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature6.png?v=1780223075)

## **3 Steps to Full Bars**

## 1\. Place the Outdoor Antenna

Mount the antenna where you get the best signal.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-1.gif?v=1780223819)  
  

## 2\. Connect the Booster Inside

Plug in the booster and connect to the antenna.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-2.gif?v=1780223819)  
  

## 3\. Enjoy Full Bars Everywhere

Clear calls, fast data, and no more dead zones.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-3.gif?v=1780223819)  
  

## 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception

It boost **4G LTE** signal on 800MHz frequency, the frequencies used in **France** used by mobile networks to deliver their mobile services: 4G LTE. It work on 800MHz (Band 20) frequencies for improving Orange, Bouygues, SFR etc ALL mobile carrier networks (except free, Le French, Lebara and Lycamobile) **4G LTE** signal. If your phones support 4G Calling (also called Voice over LTE or VoLTE) and your area 4G Calling is available, with the booster you can make clearer voice calls using 4G network. It is the best suitable for medium size, boost indoor signal areas up to **250 m2**, perfect for home, cafes, restaurants, pubs, clubs and more.

* * *

**Consistent Connection**  
Reliable 4G/LTE Data

**4G/LTE Internet**  
Faster Uploads & Downloads

**Signal Wider Coverage**  
Reception Up to 250 sq.m.

* * *

### Upgrade External Cables

If our standard package 10 meter external cable length is not enough to cover your area you have an upgrade option.  
![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception cables](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCable.webp?v=1600639912)

* * *

### Upgrade External Aerial

Higher Gain Yagi Antenna - For better performance it's a must if indoor your phone with 1/2 signal bars. Or get this upgrade if outdoor best signal strength in the following range:  
2G (GSM) -76 to -90 dBm  
3G (UMTS) -80 to -94 dBm  
4G (LTE) -97 to -105 dBm  
How shown dBm reading on phone, can refer [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide)  
![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception higher gain yagi antenna](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHigherGainYagiAntenna.webp?v=1600640184)

* * *

### Upgrade Protector

Lightning Surge Protector - Designed to Protect your equipment from high amperage surges due to lightning strikes on aerials or masts in close proximity to the device. This unit is rated for 18KA of current surge and is very simple to install on any device.  
![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184)

* * *

### Specification

Application & Bands

\[4G/LTE\] (Band 20)

Country

France

**Boost All On**

Orange (4G)  
Bouygues (4G)  
SFR (4G)  
Cellhire (4G)  
La Poste Mobile (4G)  
NRJ (4G)  
Prixtel (4G)  
Reglo Mobile (4G)  
SOSH (4G)  
Transatel (4G)  
Virgin Mobile (4G)

Users Supporting

25 Simultaneously

Band

Single Band 20

Frequency

800MHz

Gain(dB)

Uplink Gp≥50; Downlink Gp≥55

Up-link

832~862 MHz

Down-link

791~821 MHz

Export Power(Po)

≥10dBm

Power Adapter

Input: AC 100V~240V 50/60Hz;  
Output: DC 5V

Kit Includes

1 x Booster  
1 x Outdoor Antenna  
1 x Indoor Antenna  
1 x EU Power Adapter  
1 x 10 Meters Outdoor Cable  
1 x 5 Meters Indoor Cable

**Warming Tips:**  
-   Band Confirmation: This booster can boost signals on Band 20, please check the band of your devices firstly.
-   For iPhone: Dial \*3001#12345#\* → Press call button → Click 'Serving Cell Info' → Check 'Freq Band Indicator'.
-   For Android: Download 'LTE Discovery' APP → Click ‘SIGNALS’ → Check 'EARFCN'. More refer to [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide).
-   External Signal Needed: The signal booster can only amplify signal but can't create signal. If there is no signal outside, it won't work, please make sure you get 1-2 bars signal outside.

### Custom your solution

#### **Expandable coverage by adding indoor antenna if the outside signal is strong.**

  

![UK Mobile Booster Expand Cell Coverage with 3 Indoor Antennas](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Expand-Cell-Coverage-with-3-Indoor-Antenna.png?v=1700361963)

  

### **How It Works**

  

![how 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWhomeoffice-2.webp?v=1650634397)

#### 1

**Receives signal**  
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster  

#### 2

**Boosts signal**  
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.  

#### 3

**Broadcasts signal**  
Your devices get increased cell reception, and calls and data are fed through the booster back to the network.  
  

  

#### **Get stronger signal**

  

![how 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagenormalcoverage-2.webp?v=1650634397)

#### Normal Cell Coverage

Dropped calls and slow data are generally caused by three things: distance from a cell tower, building materials in your home or office, or obstruction from tall objects such as trees, topography, and buildings.

![how 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageboostedcoverage-2.webp?v=1650634397)

#### Signal Coverage with our booster

Signal boosters increase cell signal by collecting signals with a powerful antenna, delivering those signals to the booster, amplifying the cell signals so your devices receive them, and delivering your device's boosted signals back to the cell tower.

#### **Installation**

1.  Connect the indoor antenna to the MS port.
2.  Connect the outdoor antenna to the BS Port.
3.  Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna.
4.  Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station.
5.  Power on the booster and check the signal strength.
6.  Adjust the outdoor antenna until you get the best signal strength.

**IMPORTANT NOTE**:  
DO NOT POWER ON THE DEVICE UNTIL YOU HAVE COMPLETED THIS SETUP.

Read more about [User Manual Documentation.](https://drive.google.com/file/d/1Uch5legGJsKTzLO9PTGpgsKEnZGEq7TH/view)

![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834)

  

### **Application Scenarios**

  

![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834)  
**Home**

![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832)  
**Office**

![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834)  
**Garage**

![4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834)  
**Metal Buildings**

1.  Q: What is a mobile phone signal booster?  
    A: A mobile phone signal booster is a device that strengthens weak cellular signals in your home or office. It collects signals from outside, amplifies them, and rebroadcasts them indoors, improving call quality and data speeds.
2.  Q: How does the 4G LTE - 250m2 booster work?  
    A: This booster works by receiving weak 4G LTE signals, boosting them, and sending stronger signals throughout an area of up to 250 square meters. It's compatible with networks like Orange, Bouygues, and SFR, making it ideal for improving connectivity indoors.
3.  Q: Who can use the 4G LTE booster?  
    A: Anyone who struggles with poor mobile signal at home or in a small business can benefit from this booster. It allows multiple users to connect simultaneously, so everyone can enjoy better calls and internet speeds.
4.  Q: Do I need a strong signal outside to use the booster?  
    A: Yes, the booster requires some signal from outside to work effectively. If you have at least one bar of signal where the outdoor antenna is located, it should be able to amplify the signal for indoor use.
5.  Q: How is the booster installed?  
    A: Installation is straightforward. You connect the indoor and outdoor antennas, point the outdoor antenna toward the nearest cell tower, and power on the device. Make sure to follow the installation instructions provided in the user manual.
6.  Q: Can the booster work with any mobile network?  
    A: This specific booster is designed for mobile networks like Orange, Bouygues, and SFR. However, it won't work with Free Mobile or some other networks, so it's important to check compatibility before purchase.
7.  Q: Is the booster safe to use?  
    A: Yes! Mobile phone signal boosters are safe to use. They do not cause any harm to your devices or health, and they comply with the necessary regulations. Many people use them everyday without any issues.
8.  Q: What do I do if I still have issues after installation?  
    A: If you experience ongoing issues after installation, you can adjust the outdoor antenna for better direction or height. If problems persist, check the manual for troubleshooting tips or reach out to customer support for assistance.
9.  Q: What if I need more coverage?  
    A: If you need more coverage than the 250m2 provided by this booster, you can add additional indoor antennas or consider purchasing a more powerful unit. It's flexible, and you can customize it to meet your needs.
10.  Q: How much does the 4G LTE - 250m2 booster cost?  
     A: The price for the 4G LTE - 250m2 booster is £199.99. It includes everything you need for installation, and it's a worthwhile investment for better mobile connectivity in your space.

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## Details

- **Price:** 199.99 GBP - 319.99 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** France
- **Tags:** application 4G LTE Data, coverage up to 250 sq metres, fr Bouygues, fr Cellhire, fr fr, fr La, fr NRJ, fr Orange, fr Prixtel, fr Reglo, fr SFR, fr SOSH, fr Transatel, fr Virgin, provider Bouygues, provider Cellhire, provider La Poste, provider NRJ, provider Orange, provider Prixtel, provider Reglo, provider SFR, provider SOSH, provider Transatel, provider Virgin

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| No / No / No | 199.99 GBP | In stock |
| No / No / Yes | 219.99 GBP | In stock |
| No / Yes / No | 249.99 GBP | In stock |
| No / Yes / Yes | 269.99 GBP | In stock |
| 20 M / No / No | 219.99 GBP | In stock |
| 20 M / No / Yes | 239.99 GBP | In stock |
| 20 M / Yes / No | 269.99 GBP | In stock |
| 20 M / Yes / Yes | 289.99 GBP | In stock |
| 30 M / No / No | 229.99 GBP | In stock |
| 30 M / No / Yes | 249.99 GBP | In stock |
| 30 M / Yes / No | 279.99 GBP | In stock |
| 30 M / Yes / Yes | 299.99 GBP | In stock |
| 40 M / No / No | 239.99 GBP | In stock |
| 40 M / No / Yes | 259.99 GBP | In stock |
| 40 M / Yes / No | 289.99 GBP | In stock |
| 40 M / Yes / Yes | 309.99 GBP | In stock |
| 50 M / No / No | 249.99 GBP | In stock |
| 50 M / No / Yes | 269.99 GBP | In stock |
| 50 M / Yes / No | 299.99 GBP | In stock |
| 50 M / Yes / Yes | 319.99 GBP | In stock |

## Images

- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- Man sitting on a couch using a smartphone with a blurred outdoor background UK Mobile Phone Signal Booster Improve Signal
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception
- 4G LTE booster mobile phone signal booster Orange Bouygues SFR indoor signal booster 250m2 coverage signal amplification Voice over LTE reliable cell reception

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> Source: [B4U](https://www.ukmobilebooster.com/products/fr-c250-mobile-booster)
> Updated: 2026-09-02