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Firmware · 2023-12

Uniden SDS200 firmware 1.23.02 main / 1.03.02 sub

Verified — manufacturer file

Download zip (2.1 MB) Manufacturer's page ↗

Main firmware 1.23.02 with sub firmware 1.03.02, from the first Waterfall-capable generation (sub 1.03.02 / main 1.23.01, 21 December 2023). Main 1.23.02 does not appear in Uniden's change log, which goes from 1.23.01 (21 Dec 2023) to 1.23.03 (28 Dec 2023); the .bin inside is dated 27 December 2023.

Read before installing. Manual-install package posted by Uniden on 3 January 2024. Moving up from 1.21.00 requires both files; moving down from 1.23.03 needs only the main file. Uniden's readme in this package tells an upgrade from 1.21.00 to copy "SDS200-SUB_V1_02_01.firm"; the package actually contains SDS200-SUB_V1_03_02.firm, which is the file its own text says is required.
Product
SDS200 firmware
Version
1.23.02 main / 1.03.02 sub
Released
2023-12
Runs on
Any PC that can copy files to a USB mass-storage device (Uniden's steps use Windows Explorer)
Applies to
Uniden SDS200
Zip SHA-256
711e4f27b55963dd15290aa7a3416888dfa7927e35cf6303d5ae94891c3c6872

Contents

FileSizeSHA-256
SDS200 V1.23.02 Main V1.03.02 Sub.zip2.1 MB434de3e4b497d7848c89e8ee35e82fedf650dd3b4486d7a3bec7b3350bd526be
README.txtThese instructions
SHA256SUMSChecksums of the files above

Instructions

The complete README.txt included in the zip:

Uniden SDS200 firmware 1.23.02 main / 1.03.02 sub
=================================================

WHAT THIS IS
Main firmware 1.23.02 with sub firmware 1.03.02, from the first
Waterfall-capable generation (sub 1.03.02 / main 1.23.01, 21 December 2023).
Main 1.23.02 does not appear in Uniden's change log, which goes from 1.23.01
(21 Dec 2023) to 1.23.03 (28 Dec 2023); the .bin inside is dated 27 December
2023.

IMPORTANT: Manual-install package posted by Uniden on 3 January 2024. Moving
up from 1.21.00 requires both files; moving down from 1.23.03 needs only the
main file. Uniden's readme in this package tells an upgrade from 1.21.00 to
copy "SDS200-SUB_V1_02_01.firm"; the package actually contains
SDS200-SUB_V1_03_02.firm, which is the file its own text says is required.

Uniden normally delivers firmware only through Sentinel (UPDATE -> Update
Firmware), which always installs the newest version. Uniden published this
package on its change-log page so that owners can install this specific
version by hand - in practice, to go back to it. To bring a scanner up to
date, use Sentinel instead.

APPLIES TO
The Uniden SDS200 (US model) only. Every firmware file carries the model name
(SDS200_...). Do not use it on the SDS100, SDS150, BCD436HP or BCD536HP. The
European SDS200E uses separately named firmware files (e.g.
SDS200E_V1_23_09.bin, per RadioReference owners) and must not be given these
files.

BEFORE STARTING
  - A Windows PC. Uniden's instructions use Windows Explorer; the scanner
    appears as an ordinary removable disk.
  - The supplied USB cable, in the mini-USB port on the scanner's front panel.
  - The SDS200's power supply connected for the whole update. (Some of
    Uniden's SDS200 readmes say "make sure the battery is fully charged"; the
    SDS200 has no battery, so this is carried over from the SDS100 text.)
  - A backup: copy the whole microSD card to the PC and save the Favorites
    Lists in Sentinel first (Uniden's readme asks for both).

CONTENTS OF THIS ZIP
The download zip holds the vendor file exactly as Uniden published it, plus
this README.txt and SHA256SUMS.

  SDS200 V1.23.02 Main V1.03.02 Sub.zip  (2225333 bytes)
    SHA-256 434de3e4b497d7848c89e8ee35e82fedf650dd3b4486d7a3bec7b3350bd526be

  Inside SDS200 V1.23.02 Main V1.03.02 Sub.zip:
    Readme SDS200 V1_23_02.txt
      Uniden's own instructions (downgrade/upgrade to 1.23.02)
      2902 bytes
      SHA-256 f91f8547ced982c5fb9647565bbac7a87c3a155cef0883ee35ee45f3bcc49c6a
    SDS200_V1_23_02.bin
      main (CPU) firmware 1.23.02
      2162688 bytes
      SHA-256 7b7022a3d03bc777916ba7461909e0ef5001b551a84fa5d767846b1e106fb009
    SDS200-SUB_V1_03_02.firm
      sub-processor firmware 1.03.02
      88816 bytes
      SHA-256 01cc450f9633c33e3c3a99a19c33adac1f570b983431af9304a7fc9a02930dcf

INSTALLATION
  1. Turn the scanner on.
  2. Connect it to the PC with the USB cable. The scanner shows "USB Cable
     Detected / Select USB mode" with "Mass Storage = E" and "Serial Port =
     .".
  3. Press E (Yes) to choose Mass Storage. The scanner shows "USB Mass
     Storage".
  4. In Windows Explorer, open the new removable disk, then the "BCDx36HP"
     folder, then its "firmware" folder. It already holds CitiTable_V00_00.dat
     and ZipTable_V00_00.dat - do not touch or delete them.
  5. Unzip the download on the PC. Coming DOWN from main 1.23.03: copy only
     SDS200_V1_23_02.bin into the "firmware" folder. Coming UP from 1.21.00:
     copy both SDS200_V1_23_02.bin and SDS200-SUB_V1_03_02.firm. Only one main
     (.bin) and one sub (.firm) file may be in the folder at a time.
  6. Restart the scanner ("reset the power", in Uniden's words). The update
     starts automatically as it boots. Do not turn the scanner off until the
     update has finished.
  7. When it has finished, the scanner deletes the firmware file(s) from the
     "firmware" folder by itself.

VERIFYING
Menu -> Settings -> See Scanner Information -> Firmware Version shows the main
and sub versions now installed. The firmware file(s) will also have gone from
the card's "firmware" folder.

IF SOMETHING GOES WRONG
  - Update did not start: check that only one main and one sub file are in the
    "firmware" folder and that the file names are exactly as supplied.
  - Scanner will not start properly after files were deleted from the
    "firmware" folder: the two .dat files were probably removed. Uniden's
    remedy is Sentinel -> Clear User Data, which rebuilds the card but erases
    all user data (hence the backup).
  - USB connection fails or is slow: take the microSD card out and use a card
    reader; Sentinel can work on the card directly (see Vol 5 on this site).
    The same folder layout applies.
  - Card errors: back up what is readable, format the card with the SD
    Association's SD Memory Card Formatter (cards up to 32 GB), run Sentinel
    -> Clear User Data, then Update Firmware.
  - Uniden does not document a recovery procedure for an update interrupted by
    power loss; this could not be confirmed from any source. Uniden's readme
    closes with "Please use these files on your risk."

DOWNGRADING
This package exists for going back: Uniden's readme covers moving from 1.23.03
(main file only) or 1.21.00 (main and sub files). To return to the current
version afterwards, run Sentinel -> UPDATE -> Update Firmware.

PROVENANCE
  - Official source:
    https://info.uniden.com/twiki/pub/UnidenMan4/SDS200FirmwareUpdate/SDS200%20V1.23.02%20Main%20V1.03.02%20Sub.zip
  - Listed on:
    https://info.uniden.com/twiki/bin/view/UnidenMan4/SDS200FirmwareUpdate
  - Wayback copy:
    https://web.archive.org/web/20240722201127/https://info.uniden.com/twiki/pub/UnidenMan4/SDS200FirmwareUpdate/SDS200%20V1.23.02%20Main%20V1.03.02%20Sub.zip
  - Retrieved: 2026-09-18. Status: verified (downloaded from Uniden's own
    server; SHA-1 matches the Wayback capture).

MORE INFORMATION
  - scanners.fubsypoly.com, Uniden SDS200 - Vol 5, Upgrades & Firmware:
    https://scanners.fubsypoly.com/uniden-sds200/vol-5/
  - Reference Library, SDS200 Owner's Manual:
    https://scanners.fubsypoly.com/library/sds200om/
  - Reference Library, Easier to Read SDS100/SDS200 Manual:
    https://scanners.fubsypoly.com/library/easier-to-read-sds100-200-manual/
  - Uniden change log:
    https://info.uniden.com/twiki/bin/view/UnidenMan4/SDS200FirmwareUpdate

Other versions of SDS200 firmware

← All Uniden SDS200 downloads