---
product_id: 677981736
title: "Antenna Signal Flex Cable Replacement Repair Part for Samsung Galaxy S21 Ultra 5G SM-S998U SM-S998"
brand: "xinjunkeng"
price: "KD 9.90"
currency: KWD
in_stock: true
reviews_count: 4
category: "Xinjunkeng"
url: https://www.desertcart.com.kw/products/677981736-antenna-signal-flex-cable-replacement-repair-part-for-samsung-galaxy
store_origin: KW
region: Kuwait
---

# Lightweight & tangle-free design Optimized signal reception Precision fit for Galaxy S21 Ultra 5G Antenna Signal Flex Cable Replacement Repair Part for Samsung Galaxy S21 Ultra 5G SM-S998U SM-S998

**Brand:** xinjunkeng
**Price:** KD 9.90
**Availability:** ✅ In Stock

## Summary

> 📡 Upgrade your signal, upgrade your status.

## Quick Answers

- **What is this?** Antenna Signal Flex Cable Replacement Repair Part for Samsung Galaxy S21 Ultra 5G SM-S998U SM-S998 by xinjunkeng
- **How much does it cost?** KD 9.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/677981736-antenna-signal-flex-cable-replacement-repair-part-for-samsung-galaxy)

## Best For

- xinjunkeng enthusiasts

## Why This Product

- Trusted xinjunkeng brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Reliable:** Built to last with tangle-free cable design that maintains signal integrity over time.
- • **Seamless Signal Boost:** Restore your Galaxy S21 Ultra 5G’s connectivity with precision-engineered antenna replacement.
- • **Tailored Compatibility:** Specifically crafted for SM-S998U model ensuring perfect fit and optimal performance.
- • **Effortless Installation:** Lightweight 18g design makes repair hassle-free without added bulk or complexity.
- • **Stay Connected Everywhere:** Don’t miss out on calls or data—keep your device’s signal strong and steady.

## Overview

This Antenna Signal Flex Cable Replacement is a lightweight, tangle-free repair part designed exclusively for the Samsung Galaxy S21 Ultra 5G SM-S998U. It restores optimal signal reception, ensuring your device stays connected with precision fit and durable construction. Perfect for professionals who demand reliable connectivity on the go.

## Description

1

Review: Update: be careful when you order to make sure that it is compatible with the us, I put it in and it works however when I tried to use GPS that didn't work only to find out that this one is not compatible in the US towers.
Review: It came damage one of the screw holes was missing but worked at the end so I guess you can say it worked

## Features

- for Samsung Galaxy S21 Ultra 5G
- It is Signal Antenna
- Signal Antenna X 1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXMNLX15 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 231,758 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 46,920 in Home Cinema, TV & Video Cables |
| Colour | 1 |
| Customer Reviews | 3.9 3.9 out of 5 stars (14) |
| Date First Available | 12 Mar. 2024 |
| Included components | Tools and instructions not included. |
| Item Package Quantity | 1 |
| Item Weight | 18 g |
| Item model number | SM-S998U |
| Manufacturer | XINJUNKENG |
| Package Dimensions | 6.3 x 5.11 x 2.31 cm; 18 g |
| Shape | Round |
| Size | Standard length for Samsung Galaxy S21 Ultra 5G |
| Special Features | Tangle Free |

## Product Details

- **Brand:** XINJUNKENG
- **Cable type:** Flex Cable
- **Compatible devices:** Smartphone
- **Connector type:** USB Type C
- **Special feature:** Tangle Free

## Images

![Antenna Signal Flex Cable Replacement Repair Part for Samsung Galaxy S21 Ultra 5G SM-S998U SM-S998 - Image 1](https://m.media-amazon.com/images/I/41Lm1OWciVL.jpg)

## Customer Reviews

### ⭐⭐⭐ Review
*by R***D on 27 October 2025*

Update: be careful when you order to make sure that it is compatible with the us, I put it in and it works however when I tried to use GPS that didn't work only to find out that this one is not compatible in the US towers.

### ⭐⭐⭐⭐ Review
*by O***. on 31 July 2024*

It came damage one of the screw holes was missing but worked at the end so I guess you can say it worked

### ⭐ Review
*by J***. on 18 February 2026*

Damge item bad experience

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**Shop now:** [https://www.desertcart.com.kw/products/677981736-antenna-signal-flex-cable-replacement-repair-part-for-samsung-galaxy](https://www.desertcart.com.kw/products/677981736-antenna-signal-flex-cable-replacement-repair-part-for-samsung-galaxy)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-23*