Last Updated: June 15, 2026
If you need to restore your SM-R750C Gear S, installing the official Samsung Gear S SM-R750C firmware is the usual fix. This page provides all the necessary components, including instructions for a hard reset, FRP bypass, flash files, IMEI repair tools, and drivers, along with a step-by-step guide to get your device operating correctly again.
Device: Samsung Gear S SM-R750C | Chipset: Qualcomm MSM8928 Snapdragon 400 | Flash Tool: Odin
Android: Tizen OS | File Type: .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin)
⚠ Warning: Flashing erases all data. Back up first.
Samsung Gear S SM-R750C Firmware (Flash File) Drivers, Tools & Guide
Installing the correct Samsung Gear S SM-R750C firmware using Odin can resolve many software problems on your device. I have collected all the essential resources here: the precise firmware file for your Samsung Gear S SM-R750C, the appropriate Odin version, and clear, proven instructions.
Before you begin the process, there is an important step to complete: if you have a Samsung account signed in on your device, please sign out of it. Skipping this can trigger a Knox Guard (KG) lock, and dealing with a KG lock after flashing adds extra time and effort. Also, remember that Samsung firmware comes in a .tar.md5 format. After you extract the main ZIP file, you should see individual files starting with AP_*, BL_*, CP_*, and CSC_* (or HOME_CSC_*). If these specific files are not visible, it indicates that you might have the incorrect package.
Your Samsung Gear S SM-R750C firmware will be supplied as a compressed ZIP file. You will need to download and extract this file using either WinRAR or 7-Zip. Once extracted, you should find files with names such as AP_*.tar.md5, BL_*.tar.md5, CP_*.tar.md5, and CSC_*.tar.md5 (or HOME_CSC_*.tar.md5). If these are not the files you see, you might have downloaded the wrong firmware package for your specific device.
It is important to understand that flashing the stock firmware will erase all data on your device. This complete data wipe is intentional and helps to resolve various software issues, including FRP lock, persistent application problems, slow performance, forgotten pattern locks, a device stuck on the logo or completely unresponsive, Wi-Fi and Bluetooth connectivity issues, battery drain, and soft brick situations.
Hard Reset Samsung Gear S SM-R750C
To perform a factory reset on your Samsung Gear S SM-R750C without a computer, you will need to enter the recovery menu. First, power off the device completely. Then, hold down the Volume Up + Power buttons simultaneously. If your model is an older one with a physical Home button, you would instead hold Volume Up + Home + Power. Continue holding until the recovery menu appears. Once there, use the volume keys to move to “Wipe Data/Factory Reset” and confirm your selection with the Power button.
Performing a hard reset will erase all user data and restore the Samsung Gear S SM-R750C to its original factory settings. This action can fix many software issues like slow performance, application crashes, forgotten screen locks, and bootloops. If the problem persists even after a factory reset, a full firmware flash using Odin, as detailed in the upcoming sections, is the next step to consider.
Samsung Gear S SM-R750C FRP Bypass
To bypass FRP on the Samsung Gear S SM-R750C quickly, consider using a free Android apps launcher that provides access to system settings during the initial setup. After either flashing new firmware or performing a factory reset, you might encounter a Google account lock, also known as Factory Reset Protection (FRP). Our free Android apps launcher offers the fastest method to get past this lock. This is also why I always advise removing your Google account before any flashing procedure; it completely prevents this issue.
Why Do We Need Samsung Gear S SM-R750C Firmware?
You might need to flash Samsung Gear S SM-R750C firmware to fix various software issues and restore your device to its original state. Samsung devices, including the Samsung Gear S SM-R750C, are typically flashed using the Odin tool, regardless of the internal chipset. Flashing the official firmware can resolve a wide range of problems, whether you are dealing with a device that will not boot or other software glitches:
- The firmware can unlock a device that has become locked or disabled.
- It allows you to update to the newest Tizen OS version that your phone supports.
- You can resolve issues such as continuous startup loops, sluggish performance, or freezing on your SM-R750C Gear S.
- It also helps fix problems with over-the-air update failures and excessive battery drain.
- Flashing the original Samsung stock ROM ensures your warranty remains valid.
- This process can help recover your device if it is only booting into recovery mode.
- It can also help with KG lock or Knox-related problems that arise from an incorrect or interrupted flash on your device.
Learn more about stock ROMs and why flashing works.
Choosing the Right Firmware Version
Selecting the correct firmware version for your Samsung Gear S SM-R750C is an important step to prevent potential issues during the flashing process. Before you start flashing, take a moment to confirm you have the appropriate file, as using the wrong firmware can lead to problems that are difficult to fix:
- Identify Your Exact Model Number: Navigate to Settings › About Phone and make a note of your complete model number (for example, SM-R750C). The letter suffix is important, U/U1 typically means USA, W is for Canada, N signifies Korea, and B/F indicates International/Global variants. Flashing firmware designed for a different variant can cause operational problems.
- Match the CSC (Region): The three-letter region code found in the firmware filename must correspond to your device’s region. You can check your current CSC by going to Settings › About Phone › Software Information, or by looking at the Service Provider line when your device is in Download Mode. Common codes include XAA (US), BTU (UK), INS (India), and SER (Russia).
- Check the Binary Level: Observe the version string of your current firmware (e.g.,
XXU9BZDP). The number immediately following the letters represents the binary level. It is crucial to remember that you cannot downgrade to a lower binary level. Therefore, if your device is currently on Binary 9, you should only flash firmware that is Binary 9 or newer. - Confirm the Build Date: The last four characters of the PDA version string encode the build date. The first of these characters denotes the year (A=2024, B=2025, C=2026), and the second indicates the month (A=January through L=December).
- Verify in Download Mode: Power off your device, then press and hold Volume Down + Power simultaneously to enter Download Mode. This screen will display your exact model, CSC, and the current firmware version, which you should use to confirm compatibility before proceeding with the flash.
Firmware Details for Samsung Gear S SM-R750C
The official firmware for your Samsung Gear S SM-R750C has specific technical details that are important to know. Here is a brief summary of the official firmware specifications:
| Firmware Information | Details |
|---|---|
| Device Model | Samsung Gear S SM-R750C |
| Firmware Version | N/A |
| File Size | N/A |
| Android Version | Tizen OS |
| Platform | Qualcomm MSM8928 Snapdragon 400 |
| Release Date | Released 2014, October |
| Region | Global, Africa and Asia |
| File Type | .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin) |
Which Firmware Version Should I Download?
The best firmware version to download depends on the specific issue your Samsung Gear S SM-R750C is experiencing. This question is one I receive frequently, so I have created a straightforward guide below. Find the situation that applies to your device in the table, and it will direct you to the correct file:
| Your Situation | What I Recommend |
|---|---|
| Phone is completely dead or stuck on logo | the latest version, download this one. It is the latest Samsung Gear S SM-R750C firmware available. |
| FRP / Google account lock only | See the FRP bypass guide above, you likely do not need the full firmware for this. |
| Not sure which region/CSC to download | Check Settings › About Phone › Software Information for your current CSC, or enter Download Mode (Volume Down + Power), it shows the CSC on screen. Match the 3-letter code (e.g. XAA, BTU, INS) to the firmware filename. |
| Phone slow after a recent OTA update | Try the next older version, sometimes the latest OTA introduces new bugs and an older build runs better. Make sure the binary level is the same or higher than what your device currently has. |
| IMEI missing after a previous flash | Re-flash the latest version first, then follow the IMEI repair guide. Do not skip the reflash. |
| the latest version failed with a flash error | Try the next older version instead and double-check your AP/BL/CP/CSC file assignments in Odin before assuming the firmware is the problem. |
| Restoring to factory / warranty repair | the latest version, clean state, fresh start. |
To determine which Samsung firmware is newer, examine the last four characters of the PDA version string (for example, S938BXXU9CZDP). The first character denotes the year (A=2024, B=2025, C=2026), the second indicates the month (A=January, B=February… L=December, Z=final stable release), and the last two represent the revision (numbered 0-9 then A-Z, where Z signifies the highest revision). However, before comparing dates, always verify the binary level: this is the digit immediately preceding the date code (for instance, XXU9CZDP means Binary 9). You cannot downgrade to a lower binary level. If your device is currently on Binary 9, you must only flash firmware that is Binary 9 or a higher version. Also, ensure the three-letter CSC code in the firmware matches your device’s region.
Download Samsung Gear S SM-R750C Firmware
You can download the official stock firmware for your Samsung Gear S SM-R750C from the links provided on this page. The most recent version available is the latest version. After downloading the file, confirm that its size matches the information in the table above. A discrepancy in file size typically suggests a partial or corrupted download, and attempting to flash a damaged file can introduce more problems than it solves.
Always ensure you only download firmware that is fully compatible with your exact device model. Refer to the firmware selection guide above if you are uncertain.
- Your model number is a variant of SM-R750C with a different letter suffix. Check About Phone carefully, one letter difference can cause a failed or broken flash.
- Your chipset differs from Qualcomm MSM8928 Snapdragon 400. Confirm in recovery mode before proceeding.
- You downloaded the file from a source other than this page.
- The file size differs significantly from the sizes listed in the table above, a size mismatch usually means a partial download, which will fail mid-flash.
Prerequisites for Samsung Gear S SM-R750C Firmware
Before you begin flashing firmware on your Samsung Gear S SM-R750C, you need to complete a few preparatory steps to ensure a smooth process. Two common issues I see with Samsung devices relate to not signing out of a Samsung account before flashing, which can activate a KG lock, and using a USB cable that charges but fails to maintain a stable data connection during the flash. Always use a proper data cable, not one solely for charging.
- Back Up IMEI Numbers: First, dial *#06# on your device and write down both IMEI numbers. These numbers are essential if you ever need to restore your IMEI after the flashing procedure.
- Remove Google Accounts: Log out of any Google accounts linked to your device. This step helps to prevent the FRP lock from activating after the firmware is installed.
- Remove Samsung Accounts: Make sure to sign out of any Samsung accounts to avoid encountering a KG lock during or after the flash.
- Back Up Your Data: Create a full backup of all your personal data, including photos, contacts, and important files. The flashing process will completely erase everything on the device.
- Charge Your Device: Ensure your device has at least a 50% battery charge. If the device powers off unexpectedly during the flash, it can become very challenging to recover.
- USB Cable & PC: You will need a reliable USB data cable, avoid using charge-only cables, and a Windows computer with functioning USB ports.
- Install Required Drivers:
How to Install Firmware on Samsung Gear S SM-R750C
You will install the firmware on your Samsung Gear S SM-R750C using the Odin flash tool by following a specific sequence of steps. A useful tip for Odin is to keep both “Auto Reboot” and “F. Reset Time” checked. These two options working together often yield the cleanest flashing result. If you are unsure which Odin version is best to use, you can check our Odin versions page, as some older Samsung devices perform better with older Odin builds.
- Download and Extract the Firmware:
- Download the correct firmware package from the links provided earlier on this page.
- Extract the ZIP file into a simple folder path. It is best to avoid paths that contain spaces or special characters, as some flash tools may have difficulty with them.
- Install the Necessary Drivers:
- Confirm that all drivers listed above are installed on your computer. Make sure you have restarted your PC since installing them, as skipping this restart is a frequent reason why drivers do not function properly.
- Load the Firmware Files into Odin:
- In the Odin program, click the “BL” button and then select the BL_*.tar.md5 file. Next, click “AP” and choose the AP_*.tar.md5 file. Repeat this for the “CP” and “CSC” buttons. When selecting the CSC file, use HOME_CSC to preserve your data, or choose CSC for a complete clean flash that wipes all data.
- Connect Your Device to the Computer:
- Enter Download Mode on your phone. To do this, turn off your phone completely, then hold down Volume Down + Power simultaneously (if your model has a physical Home button, you would add that to the combination). Continue holding until the warning screen appears, then press Volume Up to confirm and enter Download Mode.
- Connect your phone to your PC using a USB cable. Odin should then display “Added..” in its log area, indicating that your device has been successfully detected.
- Initiate the Flashing Process:
- Click the “Start” button in Odin to begin the flashing procedure.
- It is crucial not to disconnect the device, move the USB cable, or touch the phone until the entire process is completed successfully. Interrupting the flash midway is a common cause of devices becoming bricked.
- Allow the Device to Reboot:
- Once the flashing process shows “PASS.” in Odin, disconnect the device.
- Power on your device. The initial boot after flashing will take longer than usual, expect it to take up to 8 minutes.
Video Guide for Flashing
What to Expect After Flashing Samsung Gear S SM-R750C Firmware
After successfully flashing the Samsung Gear S SM-R750C firmware, several things are normal to expect as your device sets up for the first time. I often hear from people who worry that something went wrong, when in fact, everything is proceeding as it should be. Here is a breakdown of what is completely normal:
- Confirmation of successful flash: Odin will display “PASS.” in green text within the log window at the top-left. Seeing this means the process completed correctly.
- The initial boot sequence will take between 3 and 8 minutes; do not restart the device during this time. The operating system is configuring itself for the first time, and interrupting this process can lead to bootloop issues.
- It is normal for the phone to become warm during its first boot. This warmth will subside after a few minutes once the initial application setup is finished.
- Expect that all your applications will be removed. You can reinstall them from the Play Store, and if you had a Google account backup enabled, your device should offer to restore them during the setup wizard.
- After completing the initial setup, dial *#06# right away to verify your IMEI. Perform this check before inserting a SIM card. If the IMEI appears as “unknown” or “null,” proceed to the IMEI repair guide below before taking any further steps.
- Exercise caution when re-adding your Google account. If it was not removed prior to flashing, you might encounter an FRP prompt. It is best to add your Google account during the initial setup wizard, rather than later through the device settings.
- Wi-Fi, Bluetooth, and mobile data should function correctly immediately after setup. If you experience issues with mobile data connectivity, navigate to Settings › SIM and Network to manually re-enter your APN settings, as flashing can sometimes clear these carrier configurations.
- If your device gets stuck in a bootloop after the first startup, enter recovery mode and perform a factory reset from there; refer to the hard reset guide above. This situation can occur occasionally and does not typically indicate incorrect firmware, but rather a conflict with remaining data from the previous installation.
- Samsung Smart Switch: Following the installation of your Samsung Gear S SM-R750C firmware, Samsung Smart Switch might suggest installing further updates. Allow these updates to finish; they are important for ensuring your device has the most recent security patches for your specific region.
Missing IMEI or Corrupt Baseband on Samsung Gear S SM-R750C After Flashing?
If your Samsung Gear S SM-R750C has a missing IMEI after flashing, it often means the EFS partition, which stores your device’s unique identifiers, has become corrupted. It is important to remember that restoring an IMEI that does not belong to your device originally is illegal in most countries. Therefore, you should only proceed with this if you are reinstating the number that was on the device before you performed the flash. Tools such as ChimeraTool or BFT can assist with this process. Always verify your local laws before attempting any IMEI repair.
Video Guide: How to repair IMEI
Common Issues When Flashing Samsung Gear S SM-R750C
- Odin Reports “FAIL” Instead of “PASS”:
- This error often indicates a discrepancy between the firmware’s region or model and your device. Always verify your precise model number in Settings › About Phone before choosing the firmware. Even a minor difference in the model code can lead to a failed flash.
- Samsung Gear S SM-R750C Not Detected by Odin:
- Try reinstalling the Samsung USB drivers and ensure your device is in Download Mode. Sometimes, Odin is sensitive to USB cable quality, so swapping it for a different one can help.
- KG Lock / Knox Activation After Flashing:
- This situation occurs if a Samsung account was still logged in before flashing or if non-official firmware was applied. It is always important to sign out of all Samsung accounts prior to flashing. If KG lock has already been triggered, resolving it typically requires a specialized unlocking tool.
- Device Stuck in a Boot Loop After Flashing:
- Access recovery mode (by holding Volume Up + Power) and then perform a factory reset. This action helps to clear any residual data from the previous firmware that might be causing conflicts and preventing a proper boot.
Frequently Asked Questions
Q1: Will flashing the Samsung Gear S SM-R750C firmware erase my data?
A: Yes, installing this firmware with Odin will revert your Samsung Gear S SM-R750C to its original factory state, including the default Tizen OS settings. All personal data such as applications, photos, contacts, and accounts will be deleted. Ensure you back up all necessary information beforehand, as data recovery is not possible after the flash.
Q2: Is this firmware compatible with other Samsung models?
A: No, this firmware is designed exclusively for the Samsung Gear S SM-R750C, which uses the Qualcomm MSM8928 Snapdragon 400 chipset. Even other Gear S models with a slight variation in their model number (e.g., a different letter suffix) could have a completely different internal chipset. Attempting to flash incorrect firmware can result in a device state that is very challenging to fix. Always confirm your precise model number under Settings › About Phone.
Q3: Can I downgrade from the latest version to an older firmware version?
A: While technically sometimes possible on certain Qualcomm builds, I do not advise downgrading your firmware. Doing so can introduce security vulnerabilities and create application compatibility issues within Tizen OS. If you are experiencing problems with the most recent version, please leave a comment, as there is often a more effective solution than reverting to an older build.
Q4: What should I do if I encounter an FRP lock after flashing?
A: If you face an FRP lock on your Samsung Gear S SM-R750C after flashing, it means a Google account was still active on the device before the process began. You can usually bypass this by using our free Android apps launcher. To avoid this issue altogether, always sign out of your Google account before flashing firmware.
Q5: Are custom ROM options available for the Samsung Gear S SM-R750C?
A: This guide focuses only on official Samsung stock firmware. Whether custom ROMs are available for the Samsung Gear S SM-R750C depends on the open-source kernel support for its Qualcomm MSM8928 Snapdragon 400 chipset. For information on device-specific custom ROMs, you can refer to our Custom ROMs page or explore the XDA Developers forum.
Q6: My Samsung Gear S SM-R750C is not detected by Odin. What should I do?
A: If Odin does not detect your Samsung Gear S SM-R750C, begin by reinstalling the Samsung USB drivers and then restarting your computer. If you are using a USB 3.0 port, try switching to a USB 2.0 port, as Samsung devices sometimes connect more reliably there. Temporarily disabling your antivirus software can also sometimes help. If these steps do not resolve the issue, please provide the exact error message in a comment below, and I will assist further.
Q7: How do I enter recovery mode on my Samsung Gear S SM-R750C?
A: To enter recovery mode on your Samsung Gear S SM-R750C, first power off the device completely. Then, press and hold both the Volume Up and Power buttons simultaneously until the recovery menu appears. For older Samsung models that include a physical Home button, you would hold Volume Up + Home + Power. The recovery menu will also show your device’s build number, which is useful for confirming your current firmware version before flashing.
Q8: My IMEI shows “unknown” after flashing the Samsung Gear S SM-R750C. Is my phone permanently damaged?
A: No, this situation, while concerning, is usually repairable. A missing or unknown IMEI after flashing often indicates an issue with the EFS partition. Please consult the IMEI repair guide in the troubleshooting section above. It is important not to insert a SIM card into the device until the IMEI has been successfully restored.
Q9: How long does it take to flash Samsung Gear S SM-R750C firmware?
A: The actual process of flashing the Samsung Gear S SM-R750C firmware typically takes between 3 and 10 minutes, depending on the file size and the speed of your USB connection. The subsequent first boot after flashing will take longer, usually ranging from 3 to 8 minutes. It is crucial not to interrupt your device at any point during these stages. If the progress bar in Odin seems to be stuck, wait a few more minutes before assuming there is an error.
Final Thoughts on Samsung Gear S SM-R750C Firmware
This guide covers all the steps required to safely flash the official Samsung Gear S SM-R750C firmware using Odin and restore your device’s functionality. If you have carefully followed each step, your phone should now be running on a clean build.
Should anything not proceed as expected, perhaps a specific error message, or a step that does not work with your setup, please leave a comment below. Include as much detail as you can: the precise error you encountered, which step you were on, and what troubleshooting you have already attempted. I read every comment and am here to help you work through it.
If you found this guide helpful, please consider sharing it. It is an excellent way to assist someone else who might be experiencing the same problem.
Browse all Samsung firmware downloads for more devices.
Disclaimer: Flashing stock firmware is performed at your own risk. Follow the instructions on this page carefully. I cannot be held responsible for any damage to your device, but I will always try to help if something goes wrong.
