REALTEK RTL8187 UpData EEPROM Utility 3.0

REALTEK RTL8187 UpData EEPROM Utility — Description

The REALTEK RTL8187 UpData EEPROM Utility is a maintenance tool from REALTEK Semiconductor Corp. designed for Wi‑Fi adapters based on the RTL8187 802.11b/g chipset. It allows qualified users to read, back up, and update the adapter’s onboard EEPROM, which stores hardware-specific parameters.

Typical uses

• Backing up and restoring EEPROM data
• Correcting corrupted settings after a failed update
• Setting or correcting the device MAC address (where permitted)
• Applying factory calibration data (e.g., RF calibration, transmit power tables)
• Updating device- and region-specific parameters as required by OEM workflows

Key capabilities

• Detects RTL8187-based adapters and accesses their EEPROM
• Reads and exports current EEPROM contents for backup
• Writes updated EEPROM fields and verifies checksums
• Compares images and generates operation logs (feature availability may vary by version)

Audience

• OEMs, system integrators, service centers, and advanced technicians. It is generally not intended for casual end users.

Compatibility and distribution

• Intended for RTL8187 and certain derivatives used in USB Wi‑Fi adapters.
• OS and hardware support can vary by adapter revision; the utility is typically distributed alongside specific driver packages (often for Windows).
• Obtain the correct version from your device manufacturer or REALTEK support. Use only versions matched to your exact adapter model and region.

Important precautions

• Writing incorrect data can permanently disable the adapter or violate regional RF regulations.
• Always back up the current EEPROM before making changes.
• Use a known-good, device- and region-matched EEPROM image or configuration.
• Disconnect other similar adapters to avoid updating the wrong device, and ensure stable power during the process.

Note
This utility does not update drivers or general firmware for your operating system; it specifically modifies hardware parameters stored in the adapter’s EEPROM.

REALTEK RTL8187 UpData EEPROM Utility is developed by Realtek. The most popular version of this product among our users is 3.0. The name of the program executable file is UpdataEEPROM.exe.

You can check Realtek High Definition Audio Driver, Realtek USB Audio, Realtek AC'97 Audio and other related programs like CD/DVD Data Recovery at the "download" section.