Last Updated: June 17, 2026
If your Samsung I9505 Galaxy S4 GT-I9515 is unresponsive or stuck on the logo, you need to flash the stock firmware. This guide provides the necessary files and steps to restore it.
Device: Samsung I9505 Galaxy S4 GT-I9515 | Chipset: Qualcomm Snapdragon 600 APQ8064AB | Flash Tool: Odin
Android: Android 4.4.2 (KitKat), upgradable to 5.0.1 (Lollipop) | File Type: .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin)
⚠ Warning: Flashing erases all data. Back up first.
Device: Samsung I9505 Galaxy S4 GT-I9515 (Qualcomm Snapdragon 600 APQ8064AB)
Flash Tool: Odin
Latest Build: XU1BOK4
Firmware Files: 3 available
What You Need: Windows PC, USB data cable, Odin, USB drivers
Time Required: 10-20 minutes (plus 3-8 min first boot)
Samsung I9505 Galaxy S4 GT-I9515 Firmware (Flash File) Drivers, Tools & Guide
Flashing Samsung firmware with Odin is a process that works well once you understand the steps. I have compiled the right files and instructions for the Samsung I9505 Galaxy S4 GT-I9515 here.
Before you start, you should sign out of your Samsung account if one is active. Skipping this step often triggers a Knox security lock, which complicates the repair. Also, ensure you extract the firmware correctly. You should see files named AP_*, BL_*, CP_*, and CSC_* inside the ZIP. If you do not see these, you have the wrong package.
The Samsung I9505 Galaxy S4 GT-I9515 launched in 2013. Because it uses a Qualcomm Snapdragon 600 processor, you need specific drivers for newer Windows versions. The stock software runs on Android 4.4.2 (KitKat) and can be upgraded to 5.0.1 (Lollipop). You will need Qualcomm drivers and the Odin tool to install this firmware.
This page is updated with the latest firmware builds for the Samsung I9505 Galaxy S4 GT-I9515 as they become available. The files listed here come from verified sources and have been checked for integrity.
Download the firmware ZIP file and extract it using WinRAR or 7-Zip. You will find files named AP_*.tar.md5, BL_*.tar.md5, CP_*.tar.md5, and CSC_*.tar.md5 (or HOME_CSC_*.tar.md5). Ensure these files are present, as their absence indicates the wrong download.
Flashing this firmware wipes the device to its factory state. This action fixes bootloops, forgotten locks, Google account issues, battery drain, and other software errors.
Samsung I9505 Galaxy S4 GT-I9515 Google Account Bypass After Reset
The fastest method to bypass FRP on the Samsung I9505 Galaxy S4 GT-I9515 involves using an Android apps launcher to access settings during the setup process. After flashing or resetting, you might see a Google account lock. Our free Android apps launcher helps you get past this screen quickly. This is why I always advise removing your Google account before flashing to avoid this problem.
Reset Samsung I9505 Galaxy S4 GT-I9515 From Recovery Mode
To perform a factory reset on the Samsung I9505 Galaxy S4 GT-I9515 without a computer, turn the device off completely. Hold Volume Up + Power (or Volume Up + Home + Power for older models) until the recovery menu appears. Use the volume keys to navigate to “Wipe Data/Factory Reset” and confirm with the Power button.
This action wipes all data and restores the Samsung I9505 Galaxy S4 GT-I9515 to its original settings. It solves issues like slow performance, app crashes, and bootloops. If the problem remains, a full firmware flash is necessary.
How to Pick the Correct Samsung I9505 Galaxy S4 GT-I9515 Firmware
A common mistake is flashing firmware intended for a different variant. Before downloading, verify your exact device identity by checking Settings for your model number.
- Identify Your Exact Model Number: Go to Settings › About Phone and note your full model number (e.g. GT-I9515). 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.
Why Do We Need Samsung I9505 Galaxy S4 GT-I9515 Firmware?
Samsung devices like the Samsung I9505 Galaxy S4 GT-I9515 require Odin to flash firmware, regardless of the processor. Whether you are dealing with a boot issue or a software problem, flashing the official firmware can resolve it:
- Update to the latest Android version supported by your phone.
- Clear a forgotten screen lock, PIN, or pattern without needing the original credentials.
- Resolve OTA update failures and battery drain issues.
- Resolve touchscreen responsiveness issues caused by a corrupted system build.
- Unlock your device if it has been locked or disabled.
- Fix Wi-Fi, Bluetooth, or mobile data connectivity that stopped working after an update.
- 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.
Firmware Details for Samsung I9505 Galaxy S4 GT-I9515
Here is a quick overview of the official firmware specifications:
| Firmware Information | Details |
|---|---|
| Device Model | Samsung I9505 Galaxy S4 GT-I9515 |
| Firmware Version | XU1ANI3, XU1BOJ3, XU1BOK4 |
| File Size | 1.46 GB to 1.55 GB |
| Android Version | Android 4.4.2 (KitKat), upgradable to 5.0.1 (Lollipop) |
| Platform | Qualcomm Snapdragon 600 APQ8064AB |
| Release Date | Released 2013, April |
| Region | Global, Africa and Asia |
| File Type | .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin) |
Which Firmware Version Should I Download?
This is the question I get asked most often in the comments, so I put together 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 | XU1BOK4, download this one. It is the latest Samsung I9505 Galaxy S4 GT-I9515 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 XU1BOJ3, 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 XU1BOK4 first, then follow the IMEI repair guide. Do not skip the reflash. |
| XU1BOK4 failed with a flash error | Try XU1BOJ3 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 | XU1BOK4, 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 I9505 Galaxy S4 GT-I9515 Firmware
Download the official stock firmware for your Samsung I9505 Galaxy S4 GT-I9515 below. The latest available version is XU1BOK4. 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: I9515XXU1ANI3_I9515OXX1ANJ1_XEF.zip Size: 1.47 GB | Download Link | Download Link2 |
| File Name: I9515XXU1BOJ3_I9515OXX1BOI1_XEF.zip Size: 1.46 GB | Download Link | Download Link2 |
| File Name: I9515XXU1BOK4_I9515VFG1BOK4_I9515XXU1BOK4_VDF.zip Size: 1.55 GB | 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 I9505 Galaxy S4 GT-I9515 (GT-I9515) should not be confused with other I9505 Galaxy S4 variants that may have different chipsets or regional firmware. Even devices in the same I9505 Galaxy S4 line can use completely different processors. Always verify your exact model code “GT-I9515” in Settings > About Phone before downloading any firmware from this page.
- The model code on your phone must match GT-I9515 exactly. Even a single letter variant (like adding or dropping an “i” or “s”) can mean a different chipset inside.
- Your chipset should be Qualcomm Snapdragon 600 APQ8064AB. 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.
What You Need Before Flashing Samsung I9505 Galaxy S4 GT-I9515
Before you open Odin for the Samsung I9505 Galaxy S4 GT-I9515, go through this checklist. Two common causes of issues are an active Samsung account and a poor quality USB cable.
- Record IMEI Before Flashing: Dial *#06# and save both IMEI numbers somewhere safe, a screenshot works. If flashing corrupts the baseband, these numbers are what you will need to restore cellular connectivity.
- Unlink Google Accounts: Go to Settings, then Accounts, and remove all Google accounts. This prevents Factory Reset Protection from activating after the flash. It is the single most skipped step and causes the most post-flash headaches.
- Remove Samsung Accounts: Sign out of all Samsung accounts to avoid KG lock.
- Full Data Backup: Flashing erases everything. Transfer your photos, contacts, app data, and any important files to your computer or cloud backup before starting.
- Charge the Battery: Make sure you have at least 50% charge. A dead battery during a flash can corrupt the system partition and turn a fixable problem into a much bigger one.
- Windows PC and USB Cable: You will need a Windows computer and a data-capable USB cable. Cheap charge-only cables are the number one reason flash tools fail to detect devices.
- Driver Installation:
How to Install Firmware on Samsung I9505 Galaxy S4 GT-I9515
You will use Odin to install the firmware. 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.
- Download the Firmware Package:
- Use the download links in the table above to get the correct firmware file for your device.
- Extract the archive with WinRAR or 7-Zip. Use a short folder path like
D:flashto avoid issues with some tools.
- Check Drivers:
- All drivers from the prerequisites must be installed before connecting your device. Restart your computer after installing them.
- 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:
- Press “Start” to begin writing the firmware to your device.
- Do not unplug the phone, close the flash tool, or interact with the device until the process is 100% complete.
- Wait and Reboot:
- After the tool confirms the flash is complete, safely disconnect your phone.
- Press the power button to start your device. The initial boot is slow, wait up to 8 minutes before assuming there is a problem.
Video Guide for Flashing
Common Issues When Flashing Samsung I9505 Galaxy S4 GT-I9515
- 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 I9505 Galaxy S4 GT-I9515 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.
Normal Behavior After Installing Samsung I9505 Galaxy S4 GT-I9515 Firmware
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.
- 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.
- Battery percentage may seem inaccurate for the first day. The battery statistics are calibrated during normal use. Charge the phone fully once without interruption and the readings will stabilize.
- Storage will show almost full capacity available since all your apps and files are gone. The system partition size varies by firmware version but is typically 4 to 8 GB on most devices.
- 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.
- The phone will feel warm during first boot, this is normal. It settles after a few minutes once the initial app setup is complete.
- The phone may ask for language and region again, this is normal after a flash. You are starting from a clean state, so the setup wizard runs just like when the phone was brand new.
Missing IMEI or Corrupt Baseband on Samsung I9505 Galaxy S4 GT-I9515 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
Frequently Asked Questions
Q1: 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.
Q2: What should I do if I encounter an FRP lock after flashing?
A: Use our free Android apps launcher. FRP lock activates when a Google account was still signed in before flashing. This is why signing out of your Google account before flashing avoids this issue entirely.
Q3: 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.
Q4: Can I use a Mac or Linux computer for this?
A: Samsung firmware can be flashed using Heimdall on Linux or Mac, but the instructions on this page are written for Odin on Windows. If you only have a Mac, you may want to use a Windows virtual machine or Boot Camp for the most straightforward experience.
Q5: Is it safe to flash during a power outage risk?
A: It is best to avoid flashing during unstable power conditions. If your PC shuts down during the flash, it can corrupt the write and leave the phone in an unbootable state. If you are in an area with unreliable power, use a laptop with a fully charged battery instead of a desktop.
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: My device is not detected by Odin. What should I do?
A: Start with the drivers, reinstall the Samsung USB drivers, restart your PC, then try again. Switch to a USB 2.0 port if you are on USB 3.0. Disable your antivirus temporarily. If none of that works, leave a comment with the exact error message.
Q8: 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.
People Also Ask About Samsung I9505 Galaxy S4 GT-I9515
What is the latest firmware version for Samsung I9505 Galaxy S4 GT-I9515?
The latest available Samsung I9505 Galaxy S4 GT-I9515 firmware on this page is version XU1BOK4. This page has 3 firmware builds available for download. Check the firmware details table above for file sizes and Android versions.
Can flashing firmware fix a bricked Samsung I9505 Galaxy S4 GT-I9515?
Yes. If your Samsung I9505 Galaxy S4 GT-I9515 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.
How do I check my Samsung I9505 Galaxy S4 GT-I9515 model number before flashing?
Go to Settings > About Phone on your Samsung I9505 Galaxy S4 GT-I9515 and look for the model number “GT-I9515”. 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.
Will flashing firmware on Samsung I9505 Galaxy S4 GT-I9515 erase my data?
Yes. Flashing stock firmware on the Samsung I9505 Galaxy S4 GT-I9515 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.
Conclusion
The flash is done. Your Samsung I9505 Galaxy S4 GT-I9515 is back on official stock firmware and should be running without the issues that brought you here.
If anything went differently than described, an error message, a step that did not match your setup, post it in the comments. I respond to every question.
This guide gets updated when new builds are released, so you can come back anytime you need a newer version.
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.
