Upgrading the firmware of your Huawei LTE CPE B593 4G router is the most effective way to resolve connectivity issues, unlock hidden features like VoIP or SMS, and ensure your device remains secure. Because this router has multiple variants (such as the B593u-12 , B593s-22 , and B593u-91 ), the process requires careful attention to version compatibility to avoid bricking the device. Step 1: Identify Your Specific Model and Current Version Before downloading any files, you must know exactly which B593 variant you own. How to update router firmware | Lenovo US
Mastering the Huawei LTE CPE B593 4G Router: The Ultimate Guide to Firmware Upgrade Introduction: Is Your B593 Still a Contender? In the rapidly evolving world of 4G and 5G technology, the Huawei LTE CPE B593 stands as a monument to durability and reliability. Released over a decade ago, this “4G Router” (often referred to as the B593s-22, B593s-82, or B593u-12) remains in active use in thousands of homes, remote offices, and industrial sites. Why? Because it combines a powerful Cat4 LTE modem with four Gigabit Ethernet ports, external antenna connectors, and voice-over-LTE (VoLTE) support that many modern routers lack. However, the Achilles' heel of the B593 is its age. As mobile network operators (MNOs) upgrade their infrastructure, introduce new frequency bands (Band 28, Band 20, etc.), and refine carrier aggregation protocols, an outdated firmware becomes a bottleneck. A stale firmware can lead to slow speeds, dropped connections, overheating, and incompatibility with modern SIM cards. This article serves as your definitive resource for the Huawei LTE CPE B593 4G router firmware upgrade . We will cover why you need it, how to prepare, the step-by-step upgrade process, post-upgrade troubleshooting, and how to unlock hidden features via third-party firmware. Part 1: Why Upgrade the Firmware on Your Huawei B593? Before diving into the "how," we must address the "why." Many users operate on the principle: "If it ain't broke, don't fix it." However, with the B593, this is a false economy. 1.1 Network Compatibility (The Band Issue) The original firmware on the B593 was written when 4G LTE was in its infancy. In 2024/2025, many carriers have refarmed spectrum. For example:
Europe: Band 20 (800 MHz) is now the backbone of rural 4G. Old firmware may not handshake correctly with Band 20 cells. Asia/Australia: Band 28 (700 MHz) is critical for penetration. A firmware update often includes updated radio profiles (NV values) to lock onto these bands. VoLTE Fixes: Older firmware fails to register IMS (IP Multimedia Subsystem), meaning you cannot make voice calls despite having a 4G signal.
1.2 Security Patches The B593 runs a Linux-based operating system. Known vulnerabilities (like CVE-2017-17215) allow remote attackers to take over the router. A firmware upgrade patches these exploits, protecting your home network from botnet recruitment. 1.3 Performance Optimization Newer firmware versions (typically V200R001 or later) improve: huawei lte cpe b593 4g router firmware upgrade
NAT Throughput: Better handling of many simultaneous connections (gaming and torrenting). Wi-Fi Stability: The B593’s 2.4 GHz 802.11n Wi-Fi is weak by modern standards, but new firmware reduces latency spikes. Thermal Management: Adjusts the modem’s power output to prevent thermal throttling on hot days.
1.4 SIM Card Compatibility New high-density SIM cards (64k/128k) or 5G-ready SIM cards often fail to register on old firmware. A fresh firmware updates the SIM driver stack. Part 2: Identification – Which B593 Model Do You Have? This is the most critical step. Flashing the wrong firmware will brick your device (turn it into a paperweight). 2.1 Hardware Variants Locate the sticker on the bottom of your router. Look for the model number:
B593s-22: International version. Supports B1/B3/B7/B8/B20. Most common. B593s-82: Australian/Oceania variant. Supports B1/B3/B7/B8/B28. B593u-12: USB dongle version (rare). B593c: 2.4GHz Wi-Fi only (China/Asia). Upgrading the firmware of your Huawei LTE CPE
2.2 Current Firmware Version Log into the web interface:
Connect to the B593’s Wi-Fi or via Ethernet. Open a browser and go to 192.168.1.1 . Login (default credentials: admin / admin or admin / 4G ). Navigate to Device Information or System > Device Info . Look for a line like "Software Version" or "Firmware Version" (e.g., V200R001B226D04SP00C00 ).
Interpretation:
V200R001 = Main trunk (good). B226 = Build number (older builds are B100, B200; newer are B226, B239). SP00 = Service pack.
If your version ends in B100 or B150 , you are critically outdated. Part 3: Preparation – What You Need Before the Upgrade Do not rush. A failed firmware upgrade due to poor preparation can destroy the router. 3.1 Prerequisites