Last Updated: July 9, 2026
This page contains all the necessary files and instructions for flashing the Samsung Galaxy Tab A 8.0 SM-T355Y firmware. You will find the stock ROM files, the correct tools, and a step-by-step guide to get your device back to normal.
Device: Samsung Galaxy Tab A 8.0 SM-T355Y | Chipset: Qualcomm Snapdragon 410 MSM8916 | Flash Tool: Odin
Android: Android 5.0.2 Lollipop | File Type: .tar.md5 / ZIP (Contains AP, BL, CP, CSC files for Odin)
⚠ Warning: Flashing erases all data. Back up first.
Device: Samsung Galaxy Tab A 8.0 SM-T355Y (Qualcomm Snapdragon 410 MSM8916)
Flash Tool: Odin
Latest Build: DOU1AOK4
Firmware Files: 4 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 Tab A 8.0 SM-T355Y Firmware (Flash File) Drivers, Tools & Guide
Using Odin to flash firmware is simple once you understand the file structure. I have gathered everything you need here: the specific Samsung Galaxy Tab A 8.0 SM-T355Y firmware files, the right version of Odin, and the steps that actually work.
Before you start, make sure you sign out of your Samsung account. If you skip this, the Knox security flag will trigger, and you will face a KG lock later. Samsung packages their firmware as a multi-part archive. After extracting the ZIP, look for files named AP_*, BL_*, CP_*, and CSC_*. These files are essential for the Odin flash process. If you do not see these files, you have the wrong package.
There are four firmware files available for the Samsung Galaxy Tab A 8.0 SM-T355Y on this page. Selecting the correct one ensures your device runs smoothly on Android 5.0.2 Lollipop. Powered by a Qualcomm Snapdragon 410 MSM8916 processor, this tablet requires Qualcomm Flash Image Loader (QFIL) and Qualcomm HS-USB drivers. Make sure to install the correct driver package before connecting your device.
The Samsung Galaxy Tab A 8.0 SM-T355Y launched in 2015. This page is updated with the latest available firmware builds. Samsung firmware uses a multi-file system (AP, BL, CP, CSC) specific to Odin-based flashing, which is different from single-file scatter-based tools.
Your Samsung Galaxy Tab A 8.0 SM-T355Y firmware comes as a compressed ZIP file. Download and extract it using WinRAR or 7-Zip. After extracting, you should see files named like 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, you may have the wrong firmware package for your device.
Flashing replaces your current software completely and wipes all personal data. This is by design, it is what clears out FRP locks, bootloops, pattern locks, app crashes, and other software-level problems that a regular reset cannot fix.
Reset Samsung Galaxy Tab A 8.0 SM-T355Y From Recovery Mode
To perform a factory reset on the Samsung Galaxy Tab A 8.0 SM-T355Y without a computer, power off the device 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 Tab A 8.0 SM-T355Y 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 Tab A 8.0 SM-T355Y
The fastest way to bypass FRP on the Samsung Galaxy Tab A 8.0 SM-T355Y is to use a free Android apps launcher that lets you access settings during the setup wizard. After flashing or performing a factory reset you may see a Google account lock (FRP). Our free Android apps launcher is the fastest way to get past it. This is also why I always recommend removing your Google account before flashing, it avoids this problem entirely.
Common Reasons to Reinstall Samsung Galaxy Tab A 8.0 SM-T355Y Firmware
Samsung devices like the Samsung Galaxy Tab A 8.0 SM-T355Y 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:
- Update to the latest Android version supported by your phone.
- Remove persistent malware or adware that survives a factory reset.
- Resolve touchscreen responsiveness issues caused by a corrupted system build.
- Clear a forgotten screen lock, PIN, or pattern without needing the original credentials.
- Restore the original Samsung stock ROM to keep your warranty valid.
- Recover your device when it only boots into recovery mode.
- 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.
Which Firmware Version Does Your Samsung Galaxy Tab A 8.0 SM-T355Y Need?
Determining the correct firmware version depends on your current build and region. 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-T355Y). 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 Tab A 8.0 SM-T355Y
This section outlines the key specs for the official firmware package:
| Firmware Information | Details |
|---|---|
| Device Model | Samsung Galaxy Tab A 8.0 SM-T355Y |
| Firmware Version | DOU1AOK4, V7 |
| File Size | 1.2 GB to 2.2 GB |
| Android Version | Android 5.0.2 Lollipop |
| Platform | Qualcomm Snapdragon 410 MSM8916 |
| Release Date | Released 2015, May |
| 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 | DOU1AOK4, download this one. It is the latest Samsung Galaxy Tab A 8.0 SM-T355Y 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 DOU1AOK4 first, then follow the IMEI repair guide. Do not skip the reflash. |
| DOU1AOK4 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 | DOU1AOK4, 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 Tab A 8.0 SM-T355Y Firmware
Download the official stock firmware for your Samsung Galaxy Tab A 8.0 SM-T355Y below. The latest available version is DOU1AOK4. 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: T355YDOU1AOK4_T355YXSA1AOK2_XSA.zip Size: 1.2 GB | Download Link | Download Link2 |
| File Name: Downlowd Size: N/A | Download Link | Download Link2 |
| File Name: Downlowd Size: 2.2 GB | Download Link | Download Link2 |
| File Name: Samsung_SM-T355Y_(T355YDOU1CQJ3_T355YODD1CQJ3_India_v7.1.1)_by.zip Size: 1.5 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 Galaxy Tab A 8.0 SM-T355Y (SM-T355Y) should not be confused with other Galaxy Tab A 8.0 variants that may have different chipsets or regional firmware. Even devices in the same Galaxy Tab A 8.0 line can use completely different processors. Always verify your exact model code “SM-T355Y” in Settings > About Phone before downloading any firmware from this page.
- Your model number is a variant of SM-T355Y with a different letter suffix. Check About Phone carefully, one letter difference can cause a failed or broken flash.
- Your chipset differs from Qualcomm Snapdragon 410 MSM8916. 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.
Before You Start: Samsung Galaxy Tab A 8.0 SM-T355Y Requirements
Preparing your environment before flashing ensures a successful operation. 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.
- Write Down Your IMEI: Open your phone dialer and type *#06#. Take a photo of the screen showing both IMEI numbers. You may need these later to fix your IMEI if it gets wiped during the flash.
- Sign Out of Google: Open Settings, go to Accounts, and remove every Google account from the device. If you skip this, Google will lock the phone after flashing and you will need to do an FRP bypass.
- Remove Samsung Accounts: Sign out of all Samsung accounts to avoid KG lock.
- Save Your Files: Copy everything important to a PC or cloud storage. After flashing, the phone will be completely empty, no apps, no photos, no messages.
- Battery Check: Charge to at least 50%. If the phone dies during flashing, you could end up with a device that will not turn on at all.
- Get the Right Cable: You need a USB data cable, the kind that can transfer files, not just charge. Plug it into a USB 2.0 port on a Windows PC for the most reliable connection.
- Set Up Drivers:
Install Stock Firmware on Samsung Galaxy Tab A 8.0 SM-T355Y
The installation process uses the Odin flash tool. 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.
- Get the Firmware Ready:
- Download the firmware file from the download section above.
- Right-click the ZIP and select “Extract Here” or use 7-Zip. Put the extracted files in a folder without spaces in the name, like
C:firmware.
- Verify Your Drivers:
- Make sure the required drivers are installed. After installing, restart your PC, drivers often do not activate until after a reboot.
- 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:
- Hit the “Start” button in the flash tool to start the process.
- Leave the phone and cable completely alone until it finishes. Any interruption during this stage risks corrupting the flash.
- Wait and Reboot:
- When the flash completes, unplug the USB cable from your phone.
- Turn on the device. First boot takes 3 to 8 minutes, do not force restart it during this time.
Video Guide for Flashing
What to Expect After Flashing
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.
- 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.
- Be careful when re-adding your Google account, if you did not remove it before flashing, you may see an FRP prompt. Add it fresh during the setup wizard, not afterwards through Settings.
- Fingerprint and face unlock data are erased during the flash. You will need to re-register your fingerprints and face data from scratch in the security settings.
- 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.
- 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.
- 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.
Samsung Galaxy Tab A 8.0 SM-T355Y Flashing Problems and Fixes
- 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 Tab A 8.0 SM-T355Y 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 Tab A 8.0 SM-T355Y 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 Tab A 8.0 SM-T355Y
Q1: Can I go back to an older firmware version?
A: It is technically possible on some Qualcomm builds, but downgrading can cause security issues and app compatibility problems. If the latest version is causing trouble, leave a comment below, there is usually a better fix than rolling back.
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: 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.
Q4: Will flashing erase my data?
A: Yes, flashing with Odin restores the device to factory state, including Android 5.0.2 Lollipop 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.
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: Is this firmware compatible with other Samsung models?
A: No. This firmware is built specifically for the Samsung Galaxy Tab A 8.0 SM-T355Y running on the Qualcomm Snapdragon 410 MSM8916 chipset. Even variants of the Galaxy Tab A 8.0 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.
People Also Ask About Samsung Galaxy Tab A 8.0 SM-T355Y
Can flashing firmware fix a bricked Samsung Galaxy Tab A 8.0 SM-T355Y?
Yes. If your Samsung Galaxy Tab A 8.0 SM-T355Y 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.
What chipset does the Samsung Galaxy Tab A 8.0 SM-T355Y use?
The Samsung Galaxy Tab A 8.0 SM-T355Y is powered by the Qualcomm Snapdragon 410 MSM8916, a Qualcomm processor. Flashing requires QFIL (Qualcomm Flash Image Loader) and Qualcomm HS-USB QDLoader drivers. The device must be in EDL (Emergency Download) mode for firmware installation.
What is the latest firmware version for Samsung Galaxy Tab A 8.0 SM-T355Y?
The latest available Samsung Galaxy Tab A 8.0 SM-T355Y firmware on this page is version DOU1AOK4. This page has 4 firmware builds available for download. Check the firmware details table above for file sizes and Android versions.
Will flashing firmware on Samsung Galaxy Tab A 8.0 SM-T355Y erase my data?
Yes. Flashing stock firmware on the Samsung Galaxy Tab A 8.0 SM-T355Y 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.
Wrapping Up: Samsung Galaxy Tab A 8.0 SM-T355Y Firmware
You have just completed a clean firmware flash on your Samsung Galaxy Tab A 8.0 SM-T355Y. The device should now be back at the setup wizard on a fresh DOU1AOK4 build.
Questions, errors, or something not covered here? The comments section is open. Tell me exactly what happened and I will walk you through the fix.
If you found this useful, a quick share goes a long way, someone else with the same device is probably searching for this right now.
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.
