Fixes the problem:

No signal / No service / Emergency calls only

Signal constantly drops or is very weak

Network bars show full but cannot make calls or use data

IMEI number missing or corrupted

Baseband version unknown in settings

Phone cannot find or register with network provider

Features & Specifications:

Part Type: Network IC / Signal IC / RF Power Amplifier

Compatible Model: Samsung Galaxy A53 5G (SM-A536)

Exact Part Number: 77098B

Condition: 100% Brand New, Premium Quality

Package Includes: 1x Signal IC Chip

Material: High-grade semiconductor with BGA (Ball Grid Array) contacts

Function: Amplifies and processes radio frequency signals for cellular network communication