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1.3. Firmware

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How to flash-update µFR Firmware and test the reader

Last Updated: September 9, 2025

How to flash-update µFR Firmware – µFR reader/writer firmware upgrade & downgrade If your device is a non-wireless µFR reader/writer (Nano, Classic CS, Classic, Advance, XL), all can update its firmware using the flashing software tool available at https://code.d-logic.com/nfc-rfid-reader-sdk/ufr_plus-flasher-oneclick. When you initially run the flashing software on a Windows machine, you may get a pop-up warning as shown below. Make sure you click the Run Anyway button and enable this app. If you haven’t accomplished the step above and are experiencing a problem starting the software tool, you can still enable it in Windows security/Firewall & network protection, as seen below.   Further, use the uFR Plus Flasher and select the most recent firmware version:   Now, find the desired firmware version. Type the firmware ordinal number (the last one recommended) and press Enter. Wait for the software to complete the process. After you hear the reader’s beeper sound, the firmware flashing is completed. Make sure not to interrupt this process until it’s completely done. If it was interrupted for some reason (readers cable unplugged, power went down, etc.), you need to repeat the flashing process until it is successfully accomplished. How to test the reader’s basic functions — Programming...

Base HD Access Control reader firmware flashing

Last Updated: March 30, 2023

Base HD Access Control reader firmware flashing To use the Base HD access control reader/writer for your system developed with our SDK, the device needs to have the uFR firmware loaded. If for some reason that is not the case, please download the flowing flashing tool software https://www.d-logic.com/code/nfc-rfid-reader-sdk/ufr-flasher-oneclick and use the Base HD firmware version to flash the device. The ufr-flasher-oneclick project contains several firmware versions. Make sure you use the latest Base HD version – BaseHD_FW_uFRsupport-v3.9.18. This flasher is a simple, one-click executable software, so you just need to connect your Base HD to the PC and run the software. There is no need to take any further action to fully install/reinstall the device firmware.  If you have trouble connecting the device to a PC, please check the BASE HD connection instructions, or contact our technical support team.

NFC RFID Reader Writer uFR Series Firmware Release Table

Last Updated: October 10, 2023

µFR FIRMWARE RELEASE CHANGELOG NFC RFID Reader Writer µFR Series firmware version table – Release Changelog

Card/tag reading error on NT4H C Console software with device firmware version 5.0.52

Last Updated: October 10, 2023

The (currently latest) firmware version 5.0.52 may cause some SDK functions error, or the console freezing (issue detected in ufr-examples-c-nt4h software). If you are experiencing such a problem, the solution Is to install another firmware version on your device. If there is on new firmware version available in our firmware update list, we advise the firmware downgrade. The upgrade or downgrade of the firmware to the 5.0.51 version solves this issue. To install the new firmware, you can use the µFR Nano Online web settings (device IP), search for available firmware versions, and select the latest available firmware version, or the 5.0.51 version from the list.     Alternatively, for this purpose, you can also use desktop software https://code.d-logic.com/nfc-rfid-reader-sdk/ufr_online-flasher-oneclick.

µFR Nano Online OEM Lock/Unlock

Last Updated: October 10, 2023

Firmware update & upgrade

Last Updated: October 10, 2023

Digital Logic provides a fast and easy firmware upgrade in just a few steps. We release new firmware versions frequently. Once we have a new release, we provide a tool for a simple firmware upgrade. Firmware flashing tools Download the flashing tools for your device: ufr-flasher-oneclick – One-Click Programmer for µFR Series readers (devices with serial number: UF:00XXXX, UN:00XXXX and UC:00XXXX) basehd-flasher-oneclick – One-Click Programmer for BaseHD Series readers ufr_plus-flasher-oneclick – One-Click Programmer for µFR Plus Series readers (devices with serial numbers: UF:1XXXXX and UN:1XXXXX) ufr_online-flasher-oneclick – One-Click Programmer for µFR Online Series readers.  The same firmware version applies to all devices of the assigned series. The software is smart enough to recognize the attached device model and accomplish the firmware upgrade.

Search & Download SDK

Last Updated: June 5, 2023

SDK & executable software tools – FREE DOWNLOAD DL533R-examples-c SDK Here you can find open software for NFC readers with PR533 IC. Search Keywords: DL533R, PR533, PC SC, PC/SC, PCSC, SDK. ufr-lazarus-multi-reader SDK Example of using multiple uFR readers on the same computer. Search Keywords: multi, multi-reader, Lazarus, DL533N SDK Example script for basic testing of DL533N D-Logic NFC reader based on NXP’s PN533 chip. Provides an example of usage GPIO pins to control LEDs and buzzer specific to this device. ufr-mf-examples-delphi SDK The software example is written for Delphi. Shows basic usage of uRF Series reader’s API. Three basic usage software examples are formed by difficulty level: Simplest, Simple, and Advanced. ufr-flasher-oneclick Executable One-Click Programmer for uFR Series of Digital Logic readers. For devices with serial number: UF:00XXXX, UN:00XXXX and UC:00XXXX Search Keywords: firmware, upgrade, update ufr-mf-examples-php SDK This is a collection of PHP source code examples. It’s a server-side for ufr examples for Mifare® Classic family cards. Search Keywords: PHP, Mifare classic, simple, simplest, advanced, ufr-uart-async-config SDK Linux based configuration tool for UID Asynchronous mode of the uFR devices. Tested on Ubuntu 16.04 and Raspbian Jessie. Llinux-uart-keyboard-emulation SDK This project is a Linux source code example of reading...