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Product Filename Version Description Release Date
R4 R4R8_R4WR8W_GPS_DB_20260407.zip 2026/04/07 Database Update 20260407
04/13/2026
R4 R4_20260407.zip 1.39 Firmware Update v1.39
  • Release Notes
    • New GPS DB 260407 has been applied.
04/13/2026
R4 R4R8_R4WR8W_GPS_DB_20260105.zip 2026/01/05 Database Update 20260105
01/30/2026
R4 R4_20260114.zip 1.39 Firmware Update v1.39
  • Release Notes
    • Added support for the Laser I/F, Junction Box, associated menus, Installer Test Mode, and R/Tach app.
    • GPS DB updated to 260105
01/30/2026
R4 R4_20251031.zip 1.38 Firmware Update v1.38
  • Release Notes
    • Applied defensive code and a watchdog system to the GPS firmware to prevent errors.
    • Applied filtering to remove the Ka 33.750Ghz signal emitted from inside of some Chevrolet cars.
11/03/2025
R4 R4R8_R4WR8W_GPS_DB_20251002.zip 2025/10/02 Database Update 20251002
10/10/2025
R4 R4R8_R4WR8W_GPS_DB_20250702.zip 2025/07/02 Database Update 20250702
07/30/2025
R4 R4_20250707.zip 1.37 Firmware Update v1.37

Bundled with the latest database 2025/07/02.
See previous for release notes.
07/30/2025
R4 R4R8_GPS_DB_20250403.zip 2025/04/03 Database Update 20250403

Database 2025/04/03.
This database update is only compatible with the R4, R4W, R8 and R8W models. Please do not update this GPS with any other models.
04/09/2025
R4 R4_20250408.zip 1.37 Firmware Update v1.37

Bundled with the latest database 2025/04/03.
See previous for release notes.
04/09/2025
R4 Uniden R Series Tool v2.23.zip 2.23 Update Tool v2.23

This tool is only for Windows OS.
03/06/2025
R4 Uniden R Series Tool v2.22_MAC.zip 2.22 Update Tool v2.22 (Mac Only)

This tool is only compatible with MacOS. Changelog:

  1. Add user settings (Menu) for the latest version for each model
  2. Compatible with the R4w and R8w
  3. Showing versions of Sound, BT or BT/Wi-FI that were not shown in the previous tools 
  4. The way DB version is displayed is changed from “US DB : ___. ___. ___. ___. 2024/11/29” to “US DB : 2024/11/29”.
  5. CP210x Driver installation error is fixed.
02/18/2025
R4 Uniden R Series Tool v2.15_MAC.zip 2.15 Update Tool v2.15 (Mac Only)

This tool is only compatible with MacOS.
Please use the following instructions if there are issues with CP210x driver installation: MacOS Tool 2.15 Malware & Driver Walkthrough
If issues still persist, please contact our technical support team.
01/27/2025
R4 R4_20250124.zip 1.37 Firmware Update v1.37

Bundled with the latest database 2025/01/03.
Increased stack memory size when reorganizing memory space for Auto Mute Memory points to avoid program stack overflow.
01/24/2025
R4 R4R8_GPS_DB_20250103.zip 2025/01/03 Database Update 20250103

Database 2025/01/03.
This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
01/06/2025
R4 R4_20250108.zip 1.37 Firmware Update v1.37

Bundled with the latest database 2025/01/03.
See previous for release notes.
01/08/2025
R4 R4_20241112.zip 1.37 Firmware Update v1.37

Please use the Uniden R Series Tool to update your firmware.

  • Release Notes
    • The K Block Lv settings is changed from 3.0 to 5.0 to 0.5 to 5.0.
12/16/2024
R4 Uniden R Series Tool v2.22 Setup.zip 2.22 Update Tool v2.22

This tool is only for Windows OS.
12/04/2024
R4 R4_20241108.zip 1.36 Firmware Update v1.36

Please use the Uniden R Series Tool to update your firmware.

  • Release Notes
    • Factory default of Bluetooth is changed from Off to On.
    • Laser Atlanta Stealth gun detection is added.
    • K block 3 filter (24.123 ~ 24.124GHz) is added.
    • User K Block Filter 1, 2, 3, 4, 5 are added.
    • Selective mute memory frequency feature is added.
    • Auto Mute Alert Level feature is added. The existing Auto Mute On/Off is deleted from the menu and Auto Mute is integrated into Auto Mute Alert Level as below.
      • Off is the same as the behavior of the existing Auto Mute Off, and the Auto mute function does not work when setting it to off.   When setting it to Off, the Auto Mute Level function is not turned off, but the Auto Mute function is turned off.
      • If setting it to 1~4 level, the alert is auto muted only when the alert level is below the set Auto Mute level, and if an alert level exceeds the set Auto Mute level, it will not be auto muted.
      • If setting it to 5 level, Auto mute is applied to all levels, so it works the same as the existing Auto Mute On. (Auto Mute Level: 5 = Auto Mute On)
    • Alert temporary volume feature is added.  During an alert, it works separately and temporarily from the main volume.
    • Main Volume setting is added to the Menu.
    • Low speed (5Km/h) filter for POI (Redlight, Speed cam) alerts is added.   
    • The Auto Mute Memory related values are adjusted to Delete count 5, Visit interval 4, Delete radius 60m, Mute radius 400m, Delete check 2 sec. 
    • The level setting of the K block filter to be automatically changed to match the selected mode when changing the highway<->city mode.
11/08/2024
R4 R4R8_DB_20241002.zip 2024/10/02 Database Update 20241002
Database 2024/10/02.
This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
10/08/2024
R4 R4_20241002.zip 1.30 Firmware Update v1.30
Bundled with the latest database 2024/10/02.
10/02/2024
R4 R4R8_GPS_DB_20240702.zip 2024/07/02 Database Update 20240702
  • Please use the Uniden R Series Tool to update your firmware.
07/08/2024
R4 R4_20240708.zip 1.30 Firmware Update v1.30
  • Bundled with the latest database 2024/07/02.
  • Please use the Uniden R Series Updater to update your firmware.
07/08/2024
R4 Uniden R Series Tool v2.14_MAC.zip 2.14 Update Tool v2.14
This tool is for Mac OS.
06/24/2024
R4 Uniden R Series Tool v2.21.zip 2.21 Update Tool v2.21

This tool is only for Windows OS.
06/20/2024
R4 R4_20240408.zip 1.30 Firmware Update v1.30
  • Please use the Uniden R Series Tool to update your firmware.
04/08/2024
R4 Uniden R Series Tool v2.18.zip 2.18 Update Tool v2.18

This tool is only for Windows OS.
02/22/2024
R4 R4R8_GPS_DB_20240124.zip 20240124 Database Update 20240124

This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
01/24/2024
R4 R4_20230519.zip 1.29 Firmware Update v1.29
  • Please use the Uniden R Series Tool to update your firmware.
    If the R4 fails after "DPS Retry" shows on the firmware update progress bar.
    Unplug the cable then press and hold the VOL- and VOL+ at the same time.
    While holding those 2 buttons, then plug in the USB cable. Check the "Recovery Mode" box, then start the update.
  • Release Notes
    • Improved audio quality
05/19/2023
R4 Uniden R Series Tool v2.11.zip 2.11 Update Tool v2.11
05/10/2023
R4 R4R8_GPS_DB_20230406.zip 20230406 Database Update 20230406

This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
04/06/2023
R4 R4R8_GPS_DB_20230404.zip 20230404 Database Update 20230404

This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
04/04/2023
R4 R4_20230316.zip 1.27 Firmware Update v1.27
  • Please use the Uniden R Series Tool to update your firmware.
    If the R4 fails after "DPS Retry" shows on the firmware update progress bar.
    Unplug the cable then press and hold the VOL- and VOL+ at the same time.
    While holding those 2 buttons, then plug in the USB cable. Check the "Recovery Mode" box, then start the update.
03/16/2023
R4 R4R8_GPS_DB_20230104.bin 20230104 Database Update 20230104

This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
01/12/2023
R4 R4_20230112.zip 1.26 Firmware Update v1.26
Bundled with database 2023/01/04. See previous for release notes.
  • Please use the Uniden R Series Tool to update your firmware.
    If the R4 fails after "DPS Retry" shows on the firmware update progress bar.
    Unplug the cable then press and hold the VOL- and VOL+ at the same time.
    While holding those 2 buttons, then plug in the USB cable. Check the "Recovery Mode" box, then start the update.
01/12/2023
R4 R4_20221121.zip 1.26 Firmware Update v1.26
  • Bundled with database 2022/10/04.
  • Please use the Uniden R Series Tool to update your firmware.
  • If the R4 fails after "DPS Retry" shows on the firmware update progress bar.
    Unplug the cable then press and hold the VOL- and VOL+ at the same time.
    While holding those 2 buttons, then plug in the USB cable. Check the "Recovery Mode" box, then start the update.
  • Release Notes
    • If the Radar detects during the POI alert, both will be displayed on OLED display.
    • The background noise when using earphones has been improved.
    • The candidate signals display modified to be arranged according to the priority.
    • It supports the user setting editing function which is available from the Uniden R Series Tool V2.08.
    • The detection range of K/Ka band has been improved.
11/16/2022
R4 Uniden R Series Tool v2.08.zip 2.08 Update Tool v2.08
11/16/2022
R4 R4R8_GPS_DB_20221004.bin 20221004 Database Update 20221004

This database update is only compatible with the R4 and R8 models. Please do not update this GPS with any other models.
10/04/2022
R4 CP210x_Windows_Drivers.zip USB Drivers
R4W Uniden R Series Tool v2.25 Setup.zip 2.25 Update Tool v2.25
05/19/2026
R4W R4R8_R4WR8W_GPS_DB_20260407.zip 2026/04/07 Database Update 20260407
04/13/2026
R4W R4W_20260407.zip 1.22 Firmware Update v1.22
  • Release Notes
    • New GPS DB 260407 has been applied.
04/13/2026
R4W R4R8_R4WR8W_GPS_DB_20260105.zip 2026/01/05 Database Update 20260105
01/30/2026
R4W R4W_20260114.zip 1.22 Firmware Update v1.22
  • Release Notes
    • Added support for the Junction Box menu in the R/Tach app.
    • GPS DB updated to 260105
01/30/2026
R4W R4W_20251031.zip 1.21 Firmware Update v1.21
  • Release Notes
    • Applied defensive code and a watchdog system to the GPS firmware to prevent errors.
    • Applied filtering to remove the Ka 33.750Ghz signal emitted from inside of some Chevrolet cars.
11/03/2025
R4W R4R8_R4WR8W_GPS_DB_20251002.zip 2025/10/02 Database Update 20251002
10/10/2025
R4W R4W_20251010.zip 1.20 Firmware Update v1.20
  • Release Notes
    • Added Menu and Installer Test Mode support for the Junction Box
    • Fixed BLE connection issues with certain smartphones
    • New GPS DB 251002 has been applied
10/10/2025
R4W R4R8_R4WR8W_GPS_DB_20250702.zip 2025/07/02 Database Update 20250702
07/30/2025
R4W R4W_20250707.zip 1.18 Firmware Update v1.18

Bundled with the latest database 2025/07/02.
See previous for release notes.
07/30/2025
R4W R4W_20250627.zip 1.18 Firmware Update v1.18
  • Release Notes
    • The factory reset setting value from “TP on” to “TP off”
    • The units that were set to TP On in the current or older firmware versions will be changed to TP Off after downloading the new firmware, even if users had manually set them to TP On before.
06/27/2025
R4W R4W_20250610.zip 1.17 Firmware Update v1.17
  • Release Notes
    • Added Error Messages for the external Laser Transponders.
    • During a Laser alert, the display will show "Receive" if the unit is in Receive Mode (not CW or Pulse Modes)
    • Added a tone selection menu for Receive Mode alerts.
    • Added voice anouncement for Laser Gun ID.
    • Supports Installer Test mode for external laser transponders.
    • Added a reminder message related to Receive Mode when toggled using the power button.
    • Grouped all Laser Atlanta laser guns into the "Atlanta" category.
06/23/2025
R4W R4W_20250507.zip 1.16 Firmware Update v1.16
  • Release Notes
    • Add the power button receive mode for the optional, external laser transponders.
    • Add the any button receive mode for the optional, external laser transponders.
    • Add Pulse mode On/Off time for the optional, external laser transponders.
    • The Ka Freq voice will say trailing zeros without skipping zeros.
05/13/2025
R4W R4R8_GPS_DB_20250403.zip 2025/04/03 Database Update 20250403

Database 2025/04/03.
This database update is only compatible with the R4, R4W, R8 and R8W models. Please do not update this GPS with any other models.
04/09/2025
R4W R4W_20250408.zip 1.15 Firmware Update v1.15

Bundled with the latest database 2025/04/03.
See previous for release notes.
04/09/2025
R4W Uniden R Series Tool v2.23.zip 2.23 Update Tool v2.23

This tool is only for Windows OS.
03/06/2025
R4W Uniden R Series Tool v2.22_MAC.zip 2.22 Update Tool v2.22 (Mac Only)

This tool is only compatible with MacOS. Changelog:

  1. Add user settings (Menu) for the latest version for each model
  2. Compatible with the R4w and R8w
  3. Showing versions of Sound, BT or BT/Wi-FI that were not shown in the previous tools 
  4. The way DB version is displayed is changed from “US DB : ___. ___. ___. ___. 2024/11/29” to “US DB : 2024/11/29”.
  5. CP210x Driver installation error is fixed.
02/18/2025
R4W Uniden R Series Tool v2.15_MAC.zip 2.15 Update Tool v2.15 (Mac Only)

This tool is only compatible with MacOS.
Please use the following instructions if there are issues with CP210x driver installation: MacOS Tool 2.15 Malware & Driver Walkthrough
If issues still persist, please contact our technical support team.
01/27/2025
R4W R4W_20250124.zip 1.15 Firmware Update v1.15

Bundled with the latest database 2025/01/03.
Increased stack memory size when reorganizing memory space for Auto Mute Memory points to avoid program stack overflow.
01/24/2025
R4W R4W_20250108.zip 1.15 Firmware Update v1.15

Bundled with the latest database 2025/01/03.
See previous for release notes.
01/05/2025
R4W R4W_20241202.zip 1.15 Firmware Update v1.15

Please use the Uniden R Series Tool to update your firmware.

  • Release Notes
    • The K Block Lv settings is changed from 3.0 to 5.0 to 0.5 to 5.0.
    • Fixed codes that could potentially cause some Auto Mute Memory points to fail to mute in regions where multiple Mute Memory points and Auto Mute Memory points are registered.
12/16/2024
R4W Uniden R Series Tool v2.22 Setup.zip 2.22 Update Tool v2.22

This tool is only for Windows OS.
12/04/2024
R4W CP210x_Windows_Drivers.zip USB Drivers

Owner's Manuals

R4BLK R4BLKom.pdf
English
R4 R4om.pdf
English
R4W R4Wom.pdf
English
R4BLK R4BLKom_SP.pdf Spanish
R4 R4om_SP.pdf Spanish
R4W R4Wom_SP.pdf Spanish
R4BLK R4BLKom_FR.pdf
French
R4 R4om_FR.pdf
French
R4W R4Wom_FR.pdf
French