Software · 2026-03-28
Uniden BCDx36HP Sentinel 3.01.01
Recommended version Verified — manufacturer file
Download zip (43.6 MB) Manufacturer's page ↗
The current release (28 March 2026). Added a Celsius option for battery temperature, High Contrast mode support, a type field in the P25 band plan (Standard / X2-TDMA), a TDMA slot setting for DMR one-frequency sites, faster Favorites List display, and code signing, which removes the SmartScreen warning and the "Unknown Publisher" UAC prompt.
Read before installing. Current version. Uniden publishes it under two names: Sentinel_Version_3_01_01.zip (uniden.info download pages, hosted here) and BCDx36HP_Sentinel_Version_3_01_01.zip (the twiki Sentinel page); the two were not compared byte-for-byte.
Contents
| File | Size | SHA-256 |
|---|---|---|
| Sentinel_Version_3_01_01.zip | 43.6 MB | 9c8cb1397b8aca36f5509b9aa8b78b9237aeb3d560f418f3eb29bf1dae17bdc1 |
| README.txt | These instructions | |
| SHA256SUMS | Checksums of the files above | |
Instructions
The complete README.txt included in the zip:
Uniden BCDx36HP Sentinel 3.01.01
================================
WHAT THIS IS
The current release (28 March 2026). Added a Celsius option for battery
temperature, High Contrast mode support, a type field in the P25 band plan
(Standard / X2-TDMA), a TDMA slot setting for DMR one-frequency sites, faster
Favorites List display, and code signing, which removes the SmartScreen
warning and the "Unknown Publisher" UAC prompt.
NOTE: Current version. Uniden publishes it under two names:
Sentinel_Version_3_01_01.zip (uniden.info download pages, hosted here) and
BCDx36HP_Sentinel_Version_3_01_01.zip (the twiki Sentinel page); the two were
not compared byte-for-byte.
BCDx36HP Sentinel is Uniden's free Windows program for the BCD436HP/BCD536HP
and SDS-series scanners: it edits Favorites Lists and settings, updates the
master database (HPDB), and updates scanner firmware, which it downloads from
Uniden's server while it runs. It is a different program from HomePatrol
Sentinel.
This is the current version and the one a reader should use.
APPLIES TO
Scanner models listed inside this version of the program: BCD436HP, BCD536HP,
SDS100, SDS100E, SDS150, SDS150E, SDS200, SDS200E. It is not for the
HomePatrol-1/HomePatrol-2 (they use HomePatrol Sentinel). Windows only; there
is no macOS or Linux version.
BEFORE STARTING
- A Windows PC with an internet connection (firmware and database updates
are downloaded while Sentinel runs).
- Administrator rights: the installer checks for them, and the
RadioReference wiki notes Sentinel may need "Run as administrator".
- The .NET Framework 2.0 runtime. The zip carries Microsoft's .NET 2.0
redistributable for older Windows; on Windows 10/11 the RadioReference
wiki's remedy for ".Net framework 2.0 is required" is to enable .NET
Framework 3.5 (includes 2.0) under Windows Features.
- The scanner's USB cable (SDS100: side mini-USB port marked Charge; SDS200:
front mini-USB port).
CONTENTS OF THIS ZIP
The download zip holds the vendor file exactly as Uniden published it, plus
this README.txt and SHA256SUMS.
Sentinel_Version_3_01_01.zip (45715205 bytes)
SHA-256 9c8cb1397b8aca36f5509b9aa8b78b9237aeb3d560f418f3eb29bf1dae17bdc1
Inside Sentinel_Version_3_01_01.zip:
BCDx36HP_Sentinel_Version_3_01_01/DotNetFX/dotnetfx.exe
Microsoft .NET Framework 2.0 redistributable (installed by setup.exe if
missing)
23510720 bytes
SHA-256 46693d9b74d12454d117cc61ff2e9481cabb100b4d74eb5367d3cf88b89a0e71
BCDx36HP_Sentinel_Version_3_01_01/DotNetFX/instmsia.exe
Microsoft Windows Installer redistributable
1709160 bytes
SHA-256 536e4c8385d7d250fd5702a6868d1ed004692136eefad22252d0dac15f02563a
BCDx36HP_Sentinel_Version_3_01_01/DotNetFX/WindowsInstaller-KB893803-v2-x86.exe
Microsoft Windows Installer 3.1 redistributable
2585872 bytes
SHA-256 69b61b2c00323cea3686315617d0f452e205dae10c47e02cbe1ea96fea38f582
BCDx36HP_Sentinel_Version_3_01_01/setup.exe
the installer to run
507776 bytes
SHA-256 07127941ebb3c6be971bb0c7b1281fa3e223c0bfd79821e7c2c59aa4a769b666
BCDx36HP_Sentinel_Version_3_01_01/Setup_BCDx36HP.msi
the Windows Installer package setup.exe installs
15719936 bytes
SHA-256 02e368d7212a201a4639bccfd363f041171dc499e8e535d22bb601cabfe91423
BCDx36HP_Sentinel_Version_3_01_01/WindowsInstaller3_1/WindowsInstaller-KB893803-v2-x86.exe
Microsoft Windows Installer 3.1 redistributable
2585872 bytes
SHA-256 69b61b2c00323cea3686315617d0f452e205dae10c47e02cbe1ea96fea38f582
INSTALLATION
1. Unzip the download to a folder on the PC.
2. Run setup.exe from the unzipped folder and follow the installer's
prompts.
3. Start Sentinel. To update the scanner: connect it, choose Mass Storage on
the scanner (press E at "Select USB mode"), then in Sentinel choose
UPDATE -> Update Firmware and follow the prompts.
4. To update the database: UPDATE -> Update Master HPDB (updates Sentinel's
copy), then Scanner -> Write to Scanner.
5. When Sentinel has finished, turn the scanner off before unplugging the
cable, then turn it on and let it apply any update.
VERIFYING
The program's file and product version inside this installer is 3.1.0.1. The
exact menu in Sentinel that displays its version could not be confirmed;
Windows lists the installed program as "BCDx36HP_Sentinel" under installed
apps.
IF SOMETHING GOES WRONG
- "Unhandled Exception has occurred in your application" during setup: the
RadioReference wiki recommends compatibility mode with administrator
privileges.
- ".Net framework 2.0 is required": enable .NET Framework 3.5 in Windows
Features.
- Sentinel will not start or its settings are corrupt: close it and delete
the folder beginning "BCDx36HP_Sentinel.exe_Url_" under
C:\Users\<user>\AppData\Local\Uniden; Sentinel recreates it
(RadioReference wiki).
- The scanner card does not appear: tick "Display all drives" in Sentinel.
DOWNGRADING
Older Sentinel versions can be installed from their own zips. Whether the
installer requires the newer version to be removed first could not be
confirmed; removing it through Windows' installed-apps list first is the
cautious order. Back up Sentinel's Favorites Lists before changing versions.
PROVENANCE
- Official source:
https://www.uniden.info/download/files/Sentinel_Version_3_01_01.zip
- Sentinel page and change log:
https://info.uniden.com/twiki/bin/view/UnidenMan4/BCDx36HPSentinel
- Wayback copy: none captured
- Retrieved: 2026-09-18. Status: verified (downloaded from Uniden's server).
MORE INFORMATION
- scanners.fubsypoly.com, Uniden SDS100 - Vol 5, Upgrades & Firmware:
https://scanners.fubsypoly.com/uniden-sds100/vol-5/
- scanners.fubsypoly.com, Uniden SDS200 - Vol 5, Upgrades & Firmware:
https://scanners.fubsypoly.com/uniden-sds200/vol-5/
- scanners.fubsypoly.com, Uniden BCD536HP - Vol 5, Upgrades & Firmware:
https://scanners.fubsypoly.com/uniden-bcd536hp/vol-5/
- Uniden download pages: https://www.uniden.info/download/index.cfm?s=SDS100
(and ?s=SDS200, ?s=BCD536HP)
- RadioReference wiki:
https://wiki.radioreference.com/index.php/Sentinel_for_the_BCD436HP/BCD536HP/SDS100/SDS200