The Bosch Solution unlock key CM255B will unlock any existing master code or Installers code, this chip will not default the existing panel programming settings.

Model : CM255B 

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Features

• The Bosch Panel Default Unlock Key will reset Installer PIN and RAS PIN on Solution series
• Key will reset the installer code to default installer code (1234)
• No change to the programming.
• Works on 16 Plus, 64, 16i, 144, 6000
• Allows panel default from installer lock out.
• one use only.
• Unlocks installers code add saves programming
• Works on 16 Plus, 64, 16i, 144, 6000
• Compatible with all Digiflex Panels

Steps to Use the CM255B Unlock Key (Single Use Only)

1. Power Off the Panel
   Disconnect both AC power and the battery from the alarm control panel.

2. Locate the Serial Port
   Open the panel enclosure and locate the “Serial Port” (also known as the Direct Link Port).

3. Connect the CM255B
   Plug the CM255B module into the serial port. Ensure it is correctly aligned (refer to panel diagram if unsure).

4. Power On the Panel
   Reconnect AC power first, then battery.

5. Observe the LED Indicator

   • Green LED only: Key is valid and ready to use.

   • Red LED only: Key has already been used — discard.

   • Alternating Red & Green flash: Factory default in progress.

6. Remove the Key
   Once LEDs are flashing alternately, the reset is complete. Remove and discard the CM255B — it cannot be reused.

7. Default Installer Code & MyAlarm Setup
   After using the key, the installer code will reset to 1234.
   This will allow you to access the menu and perform setup tasks, including:

   • Go to Menu 509

   • Enter the 11-digit Installer ID

   • Register the panel to the MyAlarm platform for remote access and management.

Not compatible with 880, 862 or older series, Solution 2000, Solution 3000

• Solution 16i (Complete Factory Desault)
• Solution 16+ (Complete Factory Desault)
• Solution 64 (Complete Factory Desault)

Downloads

Installation Guides

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