Last Updated: July 12, 2026
This page provides the stock ROM files, drivers, and instructions needed to flash the Samsung Galaxy Core Plus SM-G3502U firmware.
Device: Samsung Galaxy Core Plus SM-G3502U | Chipset: Broadcom BCM28155 (Dual-core 1.2 GHz Cortex-A9) | Flash Tool: Odin
Android: Android 4.2.2 (Jelly Bean) | File Type: .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin)
⚠ Warning: Flashing erases all data. Back up first.
Device: Samsung Galaxy Core Plus SM-G3502U (Broadcom BCM28155 (Dual-core 1.2 GHz Cortex-A9))
Flash Tool: Odin
Latest Build: the latest version
Firmware Files: 1 available
What You Need: Windows PC, USB data cable, Odin, USB drivers
Time Required: 10-20 minutes (plus 3-8 min first boot)
Samsung Galaxy Core Plus SM-G3502U Firmware (Flash File) Drivers, Tools & Guide
Flashing Samsung firmware with Odin is straightforward once you understand the requirements. This page contains the correct stock ROM for the Samsung Galaxy Core Plus SM-G3502U, the necessary Odin version, and the working steps.
Before you begin, sign out of your Samsung account if it is still logged in. Failing to do so will trigger a Knox guard (KG lock) after the flash, which adds extra steps to the process. Also, ensure you are using the correct firmware package. After unzipping the file, you should see files named AP_*, BL_*, CP_*, and CSC_*. If these files are missing, the package is not for this device.
Currently, only one firmware build is available for the Samsung Galaxy Core Plus SM-G3502U. This is the stock ROM you should use for unbricking, recovery, or FRP bypass. As a Samsung device, the Samsung Galaxy Core Plus SM-G3502U requires Odin for installation. This tool is what Samsung service centers use, and it works with all Galaxy devices regardless of the chipset. The stock firmware ships with Android 4.2.2 (Jelly Bean), which determines the default apps and interface you will see after the flash.
The Samsung Galaxy Core Plus SM-G3502U was released in 2013. This page is updated with the latest available firmware builds as they become available. The firmware listed here is sourced from verified repositories and checked for integrity before publication.
Your Samsung Galaxy Core Plus SM-G3502U firmware comes as a compressed ZIP file. Download and extract it using WinRAR or 7-Zip. Once extracted, you should see files named AP_*.tar.md5, BL_*.tar.md5, CP_*.tar.md5, and CSC_*.tar.md5 (or HOME_CSC_*.tar.md5). If you do not see these files, the firmware package is likely incorrect for your device.
This process restores the phone to its original factory state, which means all your personal data will be deleted. This clean wipe fixes persistent problems like bootloops, forgotten locks, Google account verification, battery drain, and system errors.
How to Wipe Samsung Galaxy Core Plus SM-G3502U to Factory Settings
To factory reset the Samsung Galaxy Core Plus SM-G3502U without a computer, turn the device off completely, then hold Volume Up + Power (for older models with a Home button, use Volume Up + Home + Power) at the same time until the recovery menu appears. Use the volume keys to navigate to “Wipe Data/Factory Reset” and confirm with the Power button.
A hard reset erases all data and restores the Samsung Galaxy Core Plus SM-G3502U to its original factory state. This fixes most software problems, slow performance, app crashes, forgotten screen locks, and bootloops. If the issue persists after a factory reset, a full firmware flash using Odin is covered in the following sections.
FRP Removal for Samsung Galaxy Core Plus SM-G3502U
The fastest way to bypass FRP on the Samsung Galaxy Core Plus SM-G3502U is to use a free Android apps launcher that allows access to settings during the setup wizard. After flashing or performing a factory reset, you may see a Google account lock (FRP). Using our free Android apps launcher is the quickest method to bypass it. This is why removing your Google account before flashing is recommended, it avoids this problem entirely.
What Samsung Galaxy Core Plus SM-G3502U Firmware Fixes
Samsung devices like the Samsung Galaxy Core Plus SM-G3502U are flashed using Odin, regardless of the chipset inside. Whether you are dealing with a boot issue or a software problem, flashing the official firmware can resolve it:
- Repair a phone that shuts down randomly or restarts in a loop.
- Fix startup loops, lagging, and freezing on your device.
- Restore system apps that were accidentally removed or corrupted.
- Clear a forgotten screen lock, PIN, or pattern without needing the original credentials.
- Update to the latest Android version supported by your phone.
- Restore the original Samsung stock ROM to keep your warranty valid.
- Recover from KG lock or Knox-related issues after an incorrect or interrupted flash on your device.
Learn more about stock ROMs and why flashing works.
Verify Your Samsung Galaxy Core Plus SM-G3502U Model Before Downloading
The single biggest mistake is flashing firmware meant for a different variant. Before downloading anything, verify your exact device identity:
- Identify Your Exact Model Number: Go to Settings › About Phone and note your full model number (e.g. SM-G3502U). The letter suffix matters, U/U1 = USA, W = Canada, N = Korea, B/F = International/Global. Flashing firmware built for a different variant can cause issues.
- Match the CSC (Region): The 3-letter region code in the firmware filename must match your device. Check Settings › About Phone › Software Information for your current CSC, or look at the Service Provider line in Download Mode. Common codes: XAA (US), BTU (UK), INS (India), SER (Russia).
- Check the Binary Level: Look at the version string in your current firmware (e.g.
XXU9BZDP, the number after the letters is the binary level). You cannot downgrade to a lower binary level. If your device is on Binary 9, only flash Binary 9 or higher firmware. - Confirm the Build Date: The last 4 characters of the PDA version encode the build date, first character is the year (A=2024, B=2025, C=2026), second is the month (A=Jan through L=Dec).
- Verify in Download Mode: Power off, hold Volume Down + Power to enter Download Mode. This screen shows your exact model, CSC, and current firmware version, use this to confirm before flashing.
Firmware Details for Samsung Galaxy Core Plus SM-G3502U
Here is a quick overview of the official firmware specifications:
| Firmware Information | Details |
|---|---|
| Device Model | Samsung Galaxy Core Plus SM-G3502U |
| Firmware Version | G3502UZCUAOH2 |
| File Size | 602.13 MB |
| Android Version | Android 4.2.2 (Jelly Bean) |
| Platform | Broadcom BCM28155 (Dual-core 1.2 GHz Cortex-A9) |
| Release Date | Released 2013, October |
| Region | SM |
| File Type | .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin) |
Which Firmware Version Should I Download?
This is the most common question, so here is a simple guide. Find your situation in the table and go straight to the right 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 Galaxy Core Plus SM-G3502U 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 tell which Samsung firmware is newer, look at the last 4 characters of the PDA version string (e.g. S938BXXU9CZDP). The first character is the year (A=2024, B=2025, C=2026), the second is the month (A=Jan, B=Feb… L=Dec, Z=final stable), and the last two are the revision (0-9 then A-Z, where Z is highest). But before comparing dates, always check the binary level: the digit just before the date code (e.g. XXU9CZDP = Binary 9). You cannot downgrade to a lower binary level. If your device is on Binary 9, only flash Binary 9 or higher. Also make sure the 3-letter CSC code in the firmware matches your device region.
Download Samsung Galaxy Core Plus SM-G3502U Firmware
Download the official stock firmware for your Samsung Galaxy Core Plus SM-G3502U below. The latest available version is the latest version. After downloading, verify the file size matches the table above, a size mismatch usually means a partial or corrupt download, and flashing a corrupt file can cause more problems than it solves.
| Software Details | Download Link | Members Link |
|---|---|---|
|
File Name: SM-G3502U_G3502UZCUAOH2_4.2.2_China_4files.zip Size: 602.13 MB | Download Link | Download Link2 |
Only download firmware that is fully compatible with your exact device model. See the firmware selection guide above if you are not sure.
Important: The Samsung Galaxy Core Plus SM-G3502U (SM-G3502U) should not be confused with other Galaxy Core Plus variants that may have different chipsets or regional firmware. Even devices in the same Galaxy Core Plus line can use completely different processors. Always verify your exact model code “SM-G3502U” in Settings > About Phone before downloading any firmware from this page.
- The model code on your phone must match SM-G3502U exactly. Even a single letter variant (like adding or dropping an “i” or “s”) can mean a different chipset inside.
- Your chipset should be Broadcom BCM28155 (Dual-core 1.2 GHz Cortex-A9). Recovery mode shows this information if you are not sure.
- Do not mix firmware from other download sites with the files on this page.
- If the downloaded file is much smaller than what is listed in the table above, re-download it, partial files will fail.
Samsung Galaxy Core Plus SM-G3502U Flash Setup Checklist
Go through this list before you open Odin for the Samsung Galaxy Core Plus SM-G3502U. Two things that commonly cause problems with Samsung devices: a Samsung account that was not signed out before flashing, which can trigger KG lock, and a USB cable that works for charging but drops the connection mid-flash. Always use a proper data cable, not a charge-only cable.
- IMEI Backup: Open the dialer and enter *#06#. Write both IMEI numbers down on paper or take a screenshot. If you ever need to repair your IMEI after flashing, these are essential.
- Remove All Google Accounts: Go to Settings, Accounts, and sign out of every Google account on the device. Leaving accounts signed in triggers FRP lock after a flash, which blocks you from setting up the phone.
- Remove Samsung Accounts: Sign out of all Samsung accounts to avoid KG lock.
- Backup Everything: Photos, contacts, messages, WhatsApp data, move it all to a computer or cloud service. The flash will restore the phone to factory state with nothing on it.
- 50% Battery Minimum: Do not start with a low battery. If power cuts out during the flash, the device can become unresponsive and much harder to fix.
- USB Cable and Computer: Use a proper data-transfer USB cable and a Windows PC. Avoid USB hubs, connect directly to the motherboard port for a stable connection.
- Download and Install Drivers:
Step-by-Step: Flash Samsung Galaxy Core Plus SM-G3502U Stock ROM
We are using Odin for this. A quick tip: keep “Auto Reboot” and “F. Reset Time” both checked in Odin, those two options together give you the cleanest flash result. If you are not sure which Odin version to use, check our Odin versions page. Some older Samsung devices work better with older Odin builds.
- Prepare the Flash Files:
- Go to the download section and grab the firmware package that matches your device.
- Unzip the file to a folder on your desktop. Avoid using folder names with non-English characters or spaces, the flash tool may not read them correctly.
- Confirm Driver Setup:
- The drivers listed in prerequisites need to be installed and working before you connect the phone. If you are not sure, reinstall them and restart your computer.
- Load the Firmware File:
- In Odin, click “BL” and select the BL_*.tar.md5 file. Click “AP” and select the AP_*.tar.md5 file. Repeat for “CP” and “CSC”. Use HOME_CSC to keep data, or CSC for a clean flash.
- Connect Your Device:
- Enter Download Mode: Turn off your phone, then hold Volume Down + Power (add Home button on older models) until the warning screen appears. Press Volume Up to confirm and enter Download Mode.
- Connect your phone to your PC via USB. Odin should show “Added..” in the log area, this means your device is detected.
- Start Flashing:
- Click “Start” to kick off the firmware write.
- Hands off the phone and cable until the tool shows completion. Moving or disconnecting the device mid-flash is the most common cause of a bricked phone.
- Wait and Reboot:
- When you see the success message, disconnect the USB cable.
- Hold the power button to boot the phone. Give it a solid 5 to 8 minutes for the first startup, this is normal.
Video Guide for Flashing
After Flashing: What Happens Next on Samsung Galaxy Core Plus SM-G3502U
Here is what is completely normal after a successful flash:
- How to know the flash was successful: Odin will show “PASS.” in green text at the top-left of the log area. If you see this, everything went fine.
- Stuck in a bootloop after first boot? Enter recovery mode and do a factory reset from there, see the hard reset guide above. This can happen occasionally and does not mean the firmware is wrong.
- Dial *#06# immediately after setup to check your IMEI. Do this before you insert a SIM card. If it shows “unknown” or “null”, follow the IMEI repair guide below before doing anything else.
- First boot takes 3 to 8 minutes, do not force-reboot the device. The operating system is setting itself up from scratch. Interrupting this is how devices end up in bootloops.
- The phone will feel warm during first boot, this is normal. It settles after a few minutes once the initial app setup is complete.
- Notification sounds and ringtones will be back to factory defaults. Any custom tones you had set before will need to be re-downloaded and re-assigned in Settings.
- All your apps are gone, this is expected. Reinstall them from the Play Store. If you had a Google account backup active, it will offer to restore your apps automatically during setup.
What to Do if Samsung Galaxy Core Plus SM-G3502U Flash Fails
- Odin Shows “FAIL” Instead of “PASS”:
- This is usually a mismatch between the firmware region or model and your device. Confirm your exact model number in Settings › About Phone before selecting the firmware. Even a single letter difference in the model code matters.
- Samsung Galaxy Core Plus SM-G3502U Not Recognized by Odin:
- Reinstall the Samsung USB drivers. Make sure you are in Download Mode. Try a different USB cable, Odin can be sensitive to cable quality.
- KG Lock / Knox Triggered After Flashing:
- This happens when a Samsung account was still signed in before flashing, or when unofficial firmware was used. Always sign out of Samsung accounts before flashing. If KG lock is already active, a professional unlocking tool is generally needed.
- Boot Loop After Flashing:
- Enter recovery mode (Volume Up + Power) and perform a factory reset. This clears any leftover data from the previous firmware that may be causing the conflict.
Missing IMEI or Corrupt Baseband on Samsung Galaxy Core Plus SM-G3502U After Flashing?
A missing IMEI on a Samsung device after flashing usually points to a corrupted EFS partition, this is the partition that stores your IMEI and carrier settings. Note that restoring an IMEI that is not your original number is illegal in most countries, so only do this if you are restoring the number the device had before you flashed. Tools like ChimeraTool or BFT can help with this. Check your local laws before proceeding.
Video Guide: How to repair IMEI
Common Questions About Flashing Samsung Galaxy Core Plus SM-G3502U
Q1: Is this firmware compatible with other Samsung models?
A: No. This firmware is built specifically for the Samsung Galaxy Core Plus SM-G3502U running on the Broadcom BCM28155 (Dual-core 1.2 GHz Cortex-A9) chipset. Even variants of the Galaxy Core Plus with a different letter suffix can have a completely different chipset inside. Flashing the wrong firmware can leave your phone in a state that is very difficult to recover from. Always check your exact model number in Settings.
Q2: My IMEI shows “unknown” after flashing. Is my phone permanently damaged?
A: No, it looks alarming, but it is fixable. Follow the IMEI repair guide in the troubleshooting section above. For Samsung devices, check for EFS partition corruption first. Do not insert a SIM card until the IMEI is restored.
Q3: Will flashing erase my data?
A: Yes, flashing with Odin restores the device to factory state, including Android 4.2.2 (Jelly Bean) default settings. All apps, photos, contacts, and accounts will be removed. Back up everything you need before you start. There is no way to recover data once the flash is complete.
Q4: Will flashing void my warranty?
A: Flashing official stock firmware generally does not void your warranty since you are restoring the device to its factory-intended state. However, some manufacturers may flag that the bootloader was unlocked or that the flash counter increased. Check your specific warranty terms with Samsung support if you are concerned.
Q5: What if the flash fails halfway through?
A: Do not panic and do not disconnect the phone. Close Odin, restart it, and try the flash again from the beginning. In most cases, a failed flash just means the process needs to be repeated. The device is usually still detectable by the flash tool even after a failed attempt.
Q6: How do I enter recovery mode?
A: Power the device off completely, then hold Volume Up + Power at the same time until the recovery menu appears. For older Samsung models with a physical Home button, use Volume Up + Home + Power. The recovery menu displays the build number which you can use to verify your firmware version before flashing.
Q7: Do I need an internet connection during flashing?
A: No. The flashing process is entirely offline, it happens between your PC and the phone via the USB cable. You do not need internet at any point during the flash itself. You will need internet later to set up the phone and download your apps.
Q8: Can I flash this firmware if my phone does not turn on at all?
A: Yes, in most cases. Samsung devices can usually enter Download Mode even when the screen is completely dead, hold Volume Down + Power for 10 seconds. If the battery is completely drained, charge it for at least 15 minutes first.
People Also Ask About Samsung Galaxy Core Plus SM-G3502U
What is the latest firmware version for Samsung Galaxy Core Plus SM-G3502U?
The latest available Samsung Galaxy Core Plus SM-G3502U firmware on this page is version the latest version. This page has 1 firmware build available for download. Check the firmware details table above for file sizes and Android versions.
Will flashing firmware on Samsung Galaxy Core Plus SM-G3502U erase my data?
Yes. Flashing stock firmware on the Samsung Galaxy Core Plus SM-G3502U with Odin performs a full factory reset. All apps, photos, contacts, and accounts will be removed. Back up everything important before you start. There is no way to recover data after flashing.
How do I check my Samsung Galaxy Core Plus SM-G3502U model number before flashing?
Go to Settings > About Phone on your Samsung Galaxy Core Plus SM-G3502U and look for the model number “SM-G3502U”. You can also confirm by entering recovery mode (Volume Up + Power while powered off) which displays the build number and model code. Always match this exactly with the firmware filename before flashing.
Can flashing firmware fix a bricked Samsung Galaxy Core Plus SM-G3502U?
Yes. If your Samsung Galaxy Core Plus SM-G3502U is stuck on the logo, in a bootloop, or will not turn on, flashing the stock firmware with Odin can restore it to working condition. This is the standard repair method used by service centers for Samsung devices.
Final Thoughts
Use the guide above to safely restore the Samsung Galaxy Core Plus SM-G3502U to its factory state using the official firmware (the latest version) and Odin. If you followed each step, your phone should now be running on a clean build.
If something did not go as expected, a specific error, a step that is not working for your setup, leave a comment below with as much detail as you can: the exact error message, which step you are on, and what you have already tried. I read every comment and will help you work through it.
If this guide helped you, consider sharing it, it is the best way to help someone else who is dealing with 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.
