Download J120FZHU1APG1 latest security update for Galaxy J1 SM-J120F [Android 5.1.1]

Samsung has rolled another Android 5.1.1 Lollipop based latest firmware update for Galaxy J1 SM-J120F. The update carries build number J120FZHU1APG1 and brought multiple improvements along security patches so we recommend you to keep your devices updated. In this guide we will help you download and install J120FZHU1APG1 Android 5.1.1 Lollipop on Galaxy J1 SM-J120F. The Android 5.1.1 Lollipop J120FZHU1APG1 firmware for Galaxy J1 SM-J120F is available via OTA or Kies and the update notification will knock at your device anytime soon.

But if you are getting impatient for the J120FZHU1APG1 update then what are you waiting for just go ahead and update your device with the latest firmware either by OTA or the Odin method. Please note the Odin flash able firmware(.tar) file is also available so if you wish to install manually without waiting for the OTA then you can easily grab it from the link provided below but you need to be careful during the installation procedure.

And one more thing you can flash firmware of any region on your device but check twice the device model should match the one eligible for the update. We are going to follow the same procedure as we have already mentioned for other Galaxy devices, you can take reference from them. This will help you un-brick and un-root your Galaxy J1 SM-J120F and restore the stock factory settings.

J120FZHU1APG1 firmware details:
Device Name: Samsung Galaxy J1
Device Model:SM-J120F
Android Version: 5.1.1 Lollipop
Build Date:18 July 2016

How to install J120FZHU1APG1 Stock Android 5.1.1 Lollipop on Galaxy J1 SM-J120F

Before you begin:

Disclaimer: This guide includes flashing stock firmware on your device, it will flash the official firmware on your device. The writer is not responsible for any damage happens to your device during the whole operation neither we are forcing you to perform such operation.

Create a Backup of your Samsung device

Backup is the most necessary part for your device

The most convenient backup method for the Galaxy devices is to backup via Samsung Kies, you will learn below how to backup your Galaxy J1 SM-J120F via Samsung Kies.

Early Preparations:

You need to prepare your device for the firmware update process, follow the below perquisites steps to keep the firmware update process smooth without facing errors.

Keep your battery charged or at least your device should contain at least 80% charge before the flashing operation.

Android USB drivers for your device should be installed on your PC, or you can download USB drivers for Samsung

Enable USB debugging and check the Allow Mock Locations option too. To enable USB debugging in your device go to Setting >> Developer options >> USB debugging. USB debugging is meant for the development purpose hence it will ask you for the confirmation so tap OK to confirm.

Sometimes “Developer options” are not visible in device settings menu, so what you need to do is, go to Settings >> About device >> Software information and there you will see an option build number. Tap it 7 times until a pop up arises with a message that you are now a developer, that’s it now go back and the Developers option is visible in the settings menu

Once you done with the above preparations now it’s time to flash Android 5.1.1 Lollipop J120FZHU1APG1 firmware on Galaxy J1 SM-J120F . Just go ahead and follow the steps in sequence to avoid any issue while flashing J120FZHU1APG1 firmware on Galaxy J1 SM-J120F.

Process to install Android 5.1.1 Lollipop J120FZHU1APG1 firmware on Galaxy J1 SM-J120F

You can easily update your Galaxy J1 SM-J120F to Android 5.1.1 Lollipop J120FZHU1APG1 firmware any of the below provided three firmware update methods. Let me tell you one more thing about each firmware update method and it’s purpose,

OTA Method: The first one is the OTA (Over-The-Air) method, you will need to use this method before the other two because as long as software update is concerned it reaches first to your device.

Samsung KIES: Then comes the Samsung Kies Method, this works same like OTA instead you need computer to directly connect your device with Samsung servers. It check the device model, gather information about your Samsung device and then grabs the firmware if available. You can also install the firmware over there.

Odin Method (Manual process): Then the third one, the manual update process via Odin tool. The Odin process requires Odin flash tool (link provided below) to be installed on PC and you also need to download the firmware file for your device and flash it manually using Odin, you will see the process below.

We get start from the first one and then carry on along third one too see which one works for you, so lets begin from the OTA method.

Process to update Galaxy J1 SM-J120F via OTA

To update Galaxy J1 SM-J120F on Android 5.1.1 Lollipop J120FZHU1APG1 firmware you don’t need to download multiple file for it, just you need your device and the working internet connection. You must also remember that OTA process works only on Stock devices which means your device is no longer rooted while you searching for latest firmware via OTA. If you think your device is rooted then don’t waste your time switch to alternative firmware update processes or if possible un-root it and then give it a try. But we don’t recommend you to get stuck in such a long process just update it via Kies or Odin Method. If you think you are all set to go, then

Go to device Settings >> Navigate to the end till and tap on About device >> Software updates.

Now tap it to check the latest available firmware. Upon it’s availability you will be prompted about the update, now what just tap “Download Now” to instantly download the firmware or “Download later” if you wish to download later. Some times it depends on the region too for example, if the update is released for a specific region but you are not present there then you will definitely need to switch to Kies method.

How to update Galaxy J1 SM-J120F to Android 5.1.1 Lollipop J120FZHU1APG1 firmware via Samsung KIES

To update Galaxy J1 SM-J120F on Android 5.1.1 Lollipop J120FZHU1APG1 firmware via KIES you need to follow the below simple steps in sequence. It is mandatory to follow the sequence in steps because if you miss any of step it could create trouble for you during the update process. Many users find Samsung Kies as the most easiest method for installing firmware update on Samsung devices and personally we recommend you to try the Official firmware update process via Kies.

First of all you need to download the Samsung Kies application from Official Samsung Site. We have mentioned the link to Samsung Kies application for you ease just click the below provided link to download and install it on your PC.

Download Samsung Kies

Now install it on your PC and once the installation process is completed, click the Kies icon to run the Kies application.

Now the next step is to connect your Samsung device to PC via original USB cable.

As soon as you connect your device to PC, it will be automatically detect it and you are all set to go further.

Now once you are in Kies you are able to perform multiple operation including Backup which we already mentioned above. Now its essential to create a backup of your device before starting the update process.

To create a backup via Kies, click the “Backup and Restore” option and follow the on screen instructions.

Once the the backup process in completed now you can update your Galaxy J1 SM-J120F to latest available J120FZHU1APG1 firmware.

Now click the “Firmware Update” button to check whether new firmware is available for your device, you will be notified when there is an available firmware update.

Now follow the on screen instructions to start the firmware update process.

It will reboot your device once the process is completed.

We hope this process helped you but even if the Kies method remained helpless to you then you try the final option and that is the Odin Method, Now go ahead to manually update Galaxy J1 SM-J120F to Android 5.1.1 Lollipop J120FZHU1APG1 firmware via Odin.

How to manually install J120FZHU1APG1 Android 5.1.1 Lollipop on Galaxy J1 SM-J120F via Odin

Download Stock Android 5.1.1 Lollipop J120FZHU1APG1 for Galaxy J1 SM-J120F. Click here

To update Galaxy J1 SM-J120F to Android 5.1.1 Lollipop firmware you need to download and extract Odin flash tool on PC. You can download Odin 3.10.6 from the below provided link.

Download Odin 3.10.6 [Just extract it]


Click the Odin.exe file in the extracted folder to run the Odin tool.


Now turn off your device and boot into Download Mode. Now turn on your device again by pressing and holding Home Button+Volume Down +Power Key simultaneously until you see a warning logo now press Volume up to boot your device into Download Mode.

Download Mode is the zone where you perform the installation related stuff, now connect your phone to your PC via USB cable.

You will be given the successful connection notification. The ID:COM box will turn Blue indicating that your device is now detected by Odin.


Now click the Option Tab in the Odin screen and make sure “Auto Reboot” & “F.Reset Time” options are checked on Odin.

Once done with the above steps now we are coming back to the main task, click the AP tab and choose the Tar (Firmware) file you download above.

Now just click Start and wait for the firmware installation process until completed.


You will see a “PASS” message in the ID:COM box once the firmware installation process is done by Odin.

Your device will reboot itself.

Stuck on boot animation?? Don’t worry follow the below steps

This little guide is for you if your device is stuck on boot animation for more then 10 minutes or keep restarting after some time during boot. First of all there are rare chances this happen to you but if you are suffering from all the described condition your device is soft brick. Now just follow the below description to get away from such a mess.

Pull the battery out from your device (if it’s removable) and re-install it.

If its non removable then press and hold power button for a few seconds it will turn off your device.

Now you need to restart your device into recovery mode, to do this, press and hold the volume up+Home+power buttons simultaneously.

You will be taken to recovery mode, from the menu select Wipe Data Factory Reset and Cache (Use volume keys to navigate).

Now go back and select reboot system now.

That’s it! You have successfully updated Galaxy J1 SM-J120F on Android 5.1.1 Lollipop J120FZHU1APG1 stock firmware. Please give us +1 or Like to say thanks.

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