Software update for the Samsung Gear S2 classic (R735A)

Software update for the Samsung Gear S2 classic (R735A)

Latest update
Getting started
Update & verify software
Previous updates

Latest update

The updates

  • What's changing: User Interface (UI) updates


The details

  • Release date: March 25, 2018
  • OS version: Tizen 2.3.2
  • Software version: R735AUCU3DRC1
  • Previous version required: R735AUCU3CQK1
  • File size: 58MB


Getting started

  1. You can download the update via Firmware Over the Air (FOTA). 
  2. You must connect your device to Wi-Fi or a cellular connection to download the update.
  3. Downloading via cellular network will impact your data bucket and may result in additional charges.
  4. Install the latest Samsung Gear software version before updating your Samsung Gear S2 classic software.
  5. Visit the Galaxy Apps store (Samsung smartphones only) or the Google Play store (all Android devices).
  6. Download and install Samsung Gear or newer.
  7. Your Samsung Gear S2 classic must be on software version R735AUCU3CQK1 to install the update. If not, repeat the update process below until you install R735AUCU3CQK1, and then you should be able to install the latest software update.

Update & verify software

To update the software
  1. On your smartphone, if using Wi-Fi, connect your phone to a Wi-Fi network. Otherwise, it will use your data bucket.
  2. In the Samsung Gear app, ensure you are paired with your Gear S2 classic via Bluetooth.
  3. On your smartphone, tap Settings > About Gear > Update Gear Software > Update now.
  4. Tap Download and follow the on-screen instructions.
  5. A notification message appears when the update successfully completes.

To verify the update
  1. From the Gear S2 classic clock screen, tap the Power key.
  2. Rotate bezel to and tap Settings.
  3. Scroll to and tap Gear Info > About device.
  4. Scroll to Software version to verify update.
  5. Your device has the latest software if the Software version matches the current update details.

To troubleshoot the software update

Previous updates

Dec. 15, 2017
  • What's changing: Bluetooth security fix, Wi-Fi security fix, and other various fixes and improvements
  • OS version: Tizen 2.3.2
  • Software version: R735AUCU3CQK1
  • Previous version required: R735AUCU3CQD2
  • File size: 7.3MB
May 23, 2017
  • What's new: Standalone mode and latest DIRECTV application from DIRECTV/AT&T
  • What's changing: Security updates for Module Secure Download and MITM (ManInTheMiddle), memory management improvements, and fixes for Call Forwarding and text messaging Send defects
  • OS version: Tizen 2.3.2
  • Software version: R735AUCU3CQD2
  • Previous version required: R735AUCU2CPL1
  • File size: 123MB
Dec. 23, 2016
  • What's new: Accept and reject incoming calls using the rotating bezel, use handwriting input to reply text or email, create reminders and set timer using voice commands, pay with your watch using Samsung Pay where accepted by retailers, Digital Life was preloaded to monitor your home from your wrist, track sleep data, and share/post workout results to Facebook.
  • What's changing: Customize your watch face, choosing from multiple colors, designs, and complications, download apps directly to the watch, and review watch status using Gear manager.
  • OS version: Tizen 2.3.2
  • Software version: R735AUCU2CPL1
  • Previous version required: R735AUCU2BPG1
  • File size: 123MB
Aug. 5, 2016
  • Fixed issue of Send SMS failure when NumberSync is enabled
  • Software version: R735AUCU2BPG1
  • File size: 4MB
July 19, 2016 
  • Adds Contacts app and widget
  • Downloads the recommended apps and watch faces directly from Gear S2
  • Provides GMT and sunrise/sunset info in World Clock
  • Displays UV index in Weather
  • Marks the days with events in the Schedule widget
  • Adds social networking sharing and automatic measurement features for Sleep. (Needs S health 4.8 or higher)
  • Adds a new watch face named My Photo
  • Adds S Voice commands to start/resume/cancel/stop Timer and to open Message app
  • Adds functions for IT policy of EAS account (Password policy, AllowWifi, AllowTextMessaging, AllowPOPIMAPEmail)
  • Software version: R735AUCU2BPF6
  • File Size: 50MB 
May 3, 2016 
  • Performance enhancements
  • Software version: PD4
  • File Size: 21.37MB
March 11, 2016 
  • Enhancement to DTV Remote app
  • Software version: R735AUCU1APB7
  • File Size: 7.4MB

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