Last Updated: May 9, 2026
Fix your SM-J111F Galaxy J1 Ace with the official Samsung Galaxy J1 Ace SM-J111F firmware. Everything you need is on this page, hard reset, FRP bypass, flash files, IMEI repair, tools, drivers, and all the exact steps.
Device: Samsung Galaxy J1 Ace SM-J111F | Chipset: Spreadtrum SC9830A | Flash Tool: SPD Research Tool
Android: Android 5.1.1 (Lollipop) | File Type: ZIP (Contains .pac firmware file for SPD Research Tool)
⚠ Warning: Flashing erases all data. Back up first.
Samsung Galaxy J1 Ace SM-J111F Firmware (Flash File) Drivers, Tools & Guide
I have been tracking Samsung Galaxy J1 Ace SM-J111F firmware releases for some time now, and the thing that causes the most problems with Unisoc-powered devices is not the flashing itself — it is selecting the wrong .pac file and then wondering why SPD Research Tool throws an error. This guide is here to fix that. Everything you need is on this page: the right firmware, the right tool, and the exact steps to follow.
One important thing before you start: the firmware package for Unisoc devices is a single .pac file, not a folder of separate partitions like you would see with MediaTek. Make sure your downloaded ZIP actually contains that .pac file before you open the flash tool. A lot of time gets wasted loading an empty or partially downloaded archive.
Your Samsung Galaxy J1 Ace SM-J111F firmware comes as a compressed ZIP file. Download and extract it using WinRAR or 7-Zip. Once extracted, open the folder and confirm it contains the .pac file before proceeding.
Keep in mind that flashing stock firmware erases all data — which is intentional, as it resolves software issues including FRP lock, app problems, slow performance, forgotten pattern locks, a dead or logo-stuck device, Wi-Fi and Bluetooth issues, battery drain, and soft brick situations.
Hard Reset Samsung Galaxy J1 Ace SM-J111F
To factory reset Samsung Galaxy J1 Ace SM-J111F without a computer, power off the device completely, then hold Volume Up and 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 Samsung Galaxy J1 Ace SM-J111F 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 SPD Research Tool is covered in the following sections.
Samsung Galaxy J1 Ace SM-J111F FRP Bypass
The fastest way to bypass FRP on Samsung Galaxy J1 Ace SM-J111F 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.
Why Do We Need Samsung Galaxy J1 Ace SM-J111F Firmware?
The Samsung Galaxy J1 Ace SM-J111F runs on a Unisoc (Spreadtrum) chipset, and the most reliable way to fix software issues on these devices is a clean firmware flash using SPD Research Tool. Here is what the stock firmware can fix:
- Unlock your device if it has been locked or disabled.
- Update to the latest Android version supported by your phone.
- Fix startup loops, lagging, and freezing on your SM-J111F Galaxy J1 Ace.
- Resolve OTA update failures and battery drain issues.
- Restore the original Samsung stock ROM to keep your warranty valid.
- Recover your device when it only boots into recovery mode.
- Resolve .pac loading failures and communication errors in SPD Research Tool that prevent normal use of your device.
Learn more about stock ROMs and why flashing works.
Choosing the Right Firmware Version
Before you begin flashing, take a moment to confirm you have the right file. Flashing the wrong firmware is a mistake that is difficult to recover from:
- Identify Your Device Model: Go to About Phone and confirm your model is Samsung Galaxy J1 Ace SM-J111F. Check the full model string, not just the name.
- Verify the Build Number: Look for the identifier “SM-J111F” in your device build details.
- Confirm the Chipset: According to Samsung specifications, the Galaxy J1 Ace SM-J111F runs on Spreadtrum SC9830A.
- Match the Firmware Version: Check the version and regional details against what is listed in the download table above.
- Verify in Recovery Mode: If you are not sure about the chipset or build number, boot into recovery mode — it displays this information clearly and is the most reliable way to confirm before you flash.
Firmware Details for Samsung Galaxy J1 Ace SM-J111F
Here is a quick overview of the official firmware specifications:
| Firmware Information | Details |
|---|---|
| Device Model | Samsung Galaxy J1 Ace SM-J111F |
| Firmware Version | XXU0ARL2, V00 |
| File Size | 254.37 MB to 1,010.2 MB |
| Android Version | Android 5.1.1 (Lollipop) |
| Platform | Spreadtrum SC9830A |
| Release Date | Released 2015, October |
| Region | Global, Africa and Asia |
| File Type | ZIP (Contains .pac firmware file for SPD Research Tool) |
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 | V00 — download this one. It is the latest Samsung Galaxy J1 Ace SM-J111F firmware available. |
| FRP / Google account lock only | See the FRP bypass guide above — you likely do not need the full firmware for this. |
| 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. |
| IMEI missing after a previous flash | Re-flash V00 first, then follow the IMEI repair guide. Do not skip the reflash. |
| V00 failed with a flash error | Try the next older version instead and double-check your .pac file selection before assuming the firmware is the problem. |
| Restoring to factory / warranty repair | V00 — clean state, fresh start. |
With Unisoc devices, I recommend using the latest .pac file first. Older versions of the SPD Research Tool firmware can sometimes cause modem issues, which show up as no signal after flashing. Only try an older version if the latest one does not work for you.
Download Samsung Galaxy J1 Ace SM-J111F Firmware
Download the official stock firmware for your Samsung Galaxy J1 Ace SM-J111F below. The latest available version is V00. 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: J111FXXU0ARL2_J111FOJV0ARL2_WTL.zip Size: 1010.2 MB | Download Link | Download Link2 |
| File Name: COMBINATION_OJV_FA51_J111FXXU0APC1_OJVFAC_CL7391163_QB8807779_REV00.rar Size: 254.37 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.
- Your model number is a variant of SM-J111F with a different letter suffix. Check About Phone carefully — one letter difference can cause a failed or broken flash.
- Your chipset differs from Spreadtrum SC9830A. 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 Galaxy J1 Ace SM-J111F Firmware
Before anything else — and I mean before you even download the Samsung Galaxy J1 Ace SM-J111F firmware — go through this list. The most common reason Samsung Unisoc flashes fail is skipping the driver installation step. SPD Research Tool is very particular about drivers, and Windows will not always tell you when they are missing.
- Back Up IMEI Numbers: Dial *#06# and write down both IMEI numbers now. You will need these if you need to restore your IMEI after flashing.
- Remove Google Accounts: Sign out of all Google accounts to prevent FRP lock after flashing.
- Back Up Your Data: Back up everything — photos, contacts, WhatsApp chats, important files. Flashing wipes the device completely.
- Charge Your Device: At least 50% battery. A device that powers off during a flash is very difficult to recover.
- USB Cable & PC: Use a proper data USB cable — not a charge-only cable — and a Windows computer with available USB ports.
- Install Required Drivers:
- Samsung USB Drivers (includes Spreadtrum USB drivers)
How to Install Firmware on Samsung Galaxy J1 Ace SM-J111F
We are using the SPD Research Tool for this. It is the standard tool for Unisoc-based devices. One thing I always do: run it as Administrator. Right-click the .exe and choose “Run as administrator.” This prevents a number of permission-related errors. You can also follow the video guide below if you prefer to see the process in action.
- Download and Extract:
- Download the correct firmware package from the links above.
- Extract the ZIP to a simple folder path — avoid paths with spaces or special characters, as some flash tools have trouble with them.
- Install the Listed Drivers:
- Confirm all drivers listed above are installed and that your PC has been restarted since installation. Skipping the restart is a common reason drivers do not work correctly.
- Load the Firmware File:
- Click the “Load Packet” button and navigate to the extracted folder to select the .pac file.
- Connect Your Device:
- Power off your phone completely — not sleep mode, fully off.
- Connect to your PC via USB cable. The flash tool will detect it automatically.
- Start Flashing:
- Click the “Start” button to begin.
- Do not disconnect, move the cable, or touch the device until the process is fully complete. Disconnecting mid-flash is how devices get bricked.
- Wait and Reboot:
- Once flashing finishes successfully, disconnect the device.
- Power on your device. The first boot will take longer than usual — give it up to 8 minutes.
Video Guide for Flashing
What to Expect After Flashing Samsung Galaxy J1 Ace SM-J111F Firmware
I get a lot of comments from people who think something went wrong when it actually did not. Here is what is completely normal after a successful Samsung Galaxy J1 Ace SM-J111F firmware flash:
- How to know the flash was successful: SPD Research Tool will show a green “PASSED” message when the flash is complete. If you see this, you are done.
- 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.
- 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.
- 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.
- 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.
- Wi-Fi, Bluetooth, and mobile data should all work right after setup. If mobile data is not connecting, go to Settings › SIM and Network and re-enter your APN manually — the flash sometimes clears carrier APN settings.
- 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 — it is usually a conflict with leftover data from the old install.
- Samsung Smart Switch: After flashing your Samsung Galaxy J1 Ace SM-J111F firmware, Samsung Smart Switch may prompt you to install additional updates. Let it complete — this ensures your device has the latest security patches for your region.
Missing IMEI or Corrupt Baseband on Samsung Galaxy J1 Ace SM-J111F After Flashing?
A missing IMEI after a Unisoc flash usually means the NVRAM partition was not written correctly during the flash. This happens more often than it should on SPD devices. The WriteIMEI Tool handles this well for Unisoc. Just make sure you have your original IMEI written down from before you flashed — dial *#06# before starting next time. Without the original number, you cannot restore it properly.
Use WriteIMEI Tool for Unisoc to restore it. The video guide below shows the exact steps.
Video Guide: How to repair IMEI
Common Issues When Flashing Samsung Galaxy J1 Ace SM-J111F
- Samsung Galaxy J1 Ace SM-J111F Not Recognized by SPD Research Tool:
- In most cases this is a driver issue, not a cable issue. Reinstall the Spreadtrum USB drivers for the SM-J111F, restart your PC, then try again.
- If the device is still not detected, try a different USB port — USB 2.0 ports tend to work more reliably with Unisoc devices than USB 3.0.
- Temporarily disable your antivirus software — it can sometimes block the Spreadtrum driver from loading without showing any error.
- Boot Loop After Flashing:
- Enter recovery mode and perform a factory reset. This resolves most post-flash bootloops on Unisoc devices. If recovery mode is also not accessible, reflash the firmware from scratch.
- Wrong .pac File Selected for SM-J111F:
- If SPD Research Tool throws an error immediately after you load the file, you have likely selected the wrong firmware. Confirm that the .pac file model code matches your Samsung Galaxy J1 Ace SM-J111F exactly.
- No Signal After Flashing:
- This usually points to an IMEI issue. Dial *#06# — if it shows null or unknown, follow the IMEI repair guide above before inserting your SIM card.
Frequently Asked Questions
Q1: Will flashing the Samsung Galaxy J1 Ace SM-J111F firmware erase my data?
A: Yes — flashing this firmware with SPD Research Tool restores your device to factory state, including Android 5.1.1 (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.
Q2: Is this firmware compatible with other Samsung models?
A: No. This firmware is built specifically for the Samsung Galaxy J1 Ace SM-J111F running on the Spreadtrum SC9830A chipset. Even the Galaxy J1 Ace with a different letter suffix (for example, a different variant of SM-J111F) 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 › About Phone.
Q3: Can I downgrade from V00 to an older firmware version?
A: It is technically possible on some Unisoc builds, but I do not recommend it. Downgrading can cause security issues and app compatibility problems on Android 5.1.1 (Lollipop). If V00 is causing you trouble, leave a comment below — there is usually a better fix than rolling back.
Q4: What should I do if I encounter an FRP lock after flashing?
A: Use our free Android apps launcher. FRP lock on the Samsung Galaxy J1 Ace SM-J111F activates when a Google account was still signed in before flashing. This is also why I always recommend signing out of your Google account before flashing — it avoids this issue entirely.
Q5: Are custom ROM options available for the Samsung Galaxy J1 Ace SM-J111F?
A: This guide covers official Samsung stock firmware only. Custom ROM availability for the Samsung Galaxy J1 Ace SM-J111F depends on whether the Spreadtrum SC9830A chipset has open-source kernel support. Check our Custom ROMs page or the XDA Developers forum for device-specific custom ROM threads.
Q6: My Samsung Galaxy J1 Ace SM-J111F is not detected by SPD Research Tool. What should I do?
A: Start with the drivers — reinstall the Spreadtrum USB drivers, restart your PC, then try again. Switch to a USB 2.0 port if you are on USB 3.0 — Unisoc devices are more reliable on USB 2.0 ports. Disable your antivirus temporarily. If none of that works, leave a comment below with the exact error message and I will help you from there.
Q7: How do I enter recovery mode on my Samsung Galaxy J1 Ace SM-J111F?
A: Power the device off completely, then hold Volume Up + Power at the same time until the recovery menu appears. The recovery menu will display the build number for your Samsung Galaxy J1 Ace SM-J111F which you can use to verify your firmware version before flashing.
Q8: My IMEI shows “unknown” after flashing the Samsung Galaxy J1 Ace SM-J111F. 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 Unisoc devices like the Samsung Galaxy J1 Ace SM-J111F, use the WriteIMEI Tool. The important thing: do not insert a SIM card until the IMEI is restored.
Q9: How long does it take to flash Samsung Galaxy J1 Ace SM-J111F firmware?
A: The actual flashing process usually takes between 3 and 10 minutes depending on the firmware size and your USB connection speed. The first boot after flashing takes longer — anywhere from 3 to 8 minutes. Do not interrupt the device during either stage. If the progress bar in SPD Research Tool appears stuck, give it a few more minutes before assuming something went wrong.
Final Thoughts on Samsung Galaxy J1 Ace SM-J111F Firmware
That is everything you need to safely flash the official Samsung Galaxy J1 Ace SM-J111F firmware (V00) using SPD Research Tool and get your device working again. 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.
