Uniden SDS100/SDS200 firmware 1.09.00 main (open beta)
======================================================

WHAT THIS IS
Open-beta main firmware 1.09.00 for both the SDS100 and SDS200, posted on 20
March 2019. It targeted 5-second mutes caused by false digital detection on
analog Motorola trunk channels and on EDACS/LTR, and crackle noise with CTCSS;
extra logging was added.

IMPORTANT: BETA - superseded. Posted by Uniden (forum user UPMan) in a
RadioReference open-beta thread; kept for the record. A scanner should run the
current public release via Sentinel.

This is BETA firmware from 2018-2019. Uniden hosted it in the "PartnerWeb"
area of its support wiki and announced it in RadioReference open-beta threads.
It is superseded and is kept for the record only.

APPLIES TO
The Uniden SDS100 and SDS200 (US models): the zip holds a separate file for
each; copy only the one whose name matches the scanner. Not for the
SDS100E/SDS200E, SDS150, BCD436HP or BCD536HP.

BEFORE STARTING
  - A Windows PC and the scanner's USB cable (SDS100: mini-USB port on the
    side; SDS200: mini-USB port on the front).
  - A backup of the whole microSD card and of the Favorites Lists (Sentinel).
  - SDS100: a charged battery. SDS200: the power supply connected.

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

  SDSx00_V1_09_00.zip  (4326948 bytes)
    SHA-256 29c96c2be960cdd4004c106dcbfd56e0e88f78b851723cd51482af26d595c6fa

  Inside SDSx00_V1_09_00.zip:
    SDS-100_V1_09_00.bin
      SDS100 main (CPU) firmware 1.09.00, open beta
      2162688 bytes
      SHA-256 9adc3c47345ca8c08794f9a2c89b9cd7fe79acb8865c737f018902a7693c064c
    SDS200_V1_09_00.bin
      SDS200 main (CPU) firmware 1.09.00, open beta
      2162688 bytes
      SHA-256 a55394caac3d3c9283155006fda3d11bd48623fde564ec7c9ab17124c92a235c

INSTALLATION
Uniden's beta posts gave only brief steps ("copy the appropriate file ... to
the firmware folder of your scanner and reboot"); the fuller steps below
follow Uniden's later manual-install readmes for the same scanners.

  1. Connect the scanner and choose Mass Storage (press E at "Select USB
     mode").
  2. Open the removable disk, then BCDx36HP -> firmware. Leave the two .dat
     files alone.
  3. Copy the file for the model (SDS-100_... for the SDS100, SDS200_... for
     the SDS200) into the "firmware" folder - one file only.
  4. Restart the scanner; it applies the update while booting. Do not
     interrupt it.

VERIFYING
Menu -> Settings -> See Scanner Information -> Firmware Version.

IF SOMETHING GOES WRONG
  - Beta firmware was issued for testing and carries no support. Return to a
    public release with Sentinel -> UPDATE -> Update Firmware.
  - If the scanner will not start properly after files were removed from the
    "firmware" folder, Sentinel -> Clear User Data rebuilds the card (erasing
    user data).

DOWNGRADING
Moving back to an older public build by hand uses the same copy-and-restart
method with that build's files. Sentinel always installs the newest release.

PROVENANCE
  - Official source:
    https://info.uniden.com/twiki/pub/partnerweb/SDS200_Beta/SDSx00_V1_09_00.zip
  - Announced in:
    https://forums.radioreference.com/threads/sds100-sds200-v1-09-00-open-beta.385712/
  - Wayback copy:
    https://web.archive.org/web/20240816012404/http://info.uniden.com/twiki/pub/partnerweb/SDS200_Beta/SDSx00_V1_09_00.zip
  - Retrieved: 2026-09-18. Status: verified (Uniden's own server; SHA-1
    matches the Wayback capture).

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/
  - 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/SDS100FirmwareUpdate
