Flash Stock Firmware on Samsung Galaxy J3 SM-J337A

In this guide – how to Flash Stock Firmware on Samsung Galaxy J3 SM-J337A. we give you all needed files to Flash and we discuss about errors of flashing Rom and we offer you solutions for errors. we use Odin tool to flashing process. Odin is a Windows based oneclick tool that is used by the Samsung galaxy internally to flash firmwares and kernels etc. if you are Mac or Linux user then you can use Heimdall or the Java version of the Odin also we give you all Flashing methods

What is Stock ROM?

Stock ROM– Stock ROM is Original ROM/ Official Rom that your Device have. IF you buy a android Device. It have a Stock ROM. Stock ROM is default ROM.

Warranty – Stock ROM does not avoid your warranty. One of the reasons that android people don’t go for Custom ROMs is warranty. If you install custom ROM then your warranty is canceled on time.

Premium Apps – Premium apps is which you did not install apps.  Normally stock ROMs come with unique premium apps to attract customers. These premium apps differ from one mobile vendor to another vendor. These apps can be anything like music players, apps stores, widgets, Track-ID (Sony) , S voice (Samsung)

Security– in stock ROM, You can be sure that it does not contain/include any spywares, malwares, backdoor,trojan or other malicious tools but Custom Rom

Before Flash Stock Rom on Samsung Galaxy J3 SM-J337A , you should know these things

 You can do this if you want to Go back to Custom Rom to Official Stock Rom.
 Device’s pc software does not want to install but Device driver must works on your PC without error.
 This Stock Rom has to be installed on this model only.

Why I want to Install Stock Rom

 Install Marshmallow Samsung Device
♥ Install Nougat Samsung Device
 Install Oreo Samsung Device
 Install Pie Samsung Device

♥ When Device does not pass “LOGO” Screen / boot image
 When Device get “System errors”
 If you think though your Device go crazy / Slow even after performing reset, then you can flash         Stock Rom
 When Device broke after rooting.

Flash Stock Firmware on Samsung Galaxy J3 SM-J337A

Requirement for Flashing Official Firmware/ ROM

 Your Device should have 50% + battery.
 USB drivers. – link is below
 Enable developer mood and USB Debugging
♦ Odin – link is below

Top Root apps for your Device 

Step 1,

First of all, get backup (easy and ultimate backup) your apps, contacts, messages, photos, videos,Music, Call Logs,Whatapp Viber Messages and any other important data stored on the internal storage and external Storage (SD Card)  before Flashing.

Step 2,

After Then, download and install USB drivers . If you Device working fine  with your computer then go to Step three.

Turn Off Your Device by tapping power key

Flash Stock Firmware on Samsung Galaxy

Step 3,

Download Official Stock Firmware For Samsung Galaxy J3 SM-J337A

Download Official Stock Rom for your device from this link.  If you Install Thailand Rom/, you can use English language or any other language So don’t worry that. after downloading,  extract it. To extract, you will need this Software. after extracting, you will see file tar.md5

♥ Note–  What is the Stock & Custom Rom? Firmware? Bootloader?

Step 4,

Boot into download mode. To do this, press and hold  “volume down + home + power”  at the same time until you see the warning screen with a yellow triangle sign,

Flash Stock Firmware on Samsung Galaxy

Step 4,

Must watch – about Odin Buttons & Check boxes for Beginner

  1. Download Odin tool
  2. Extract Odin Zip File. install Odin.exe and launch it.

Flash Stock Rom on Samsung Galaxy

2. After that, press Volume up key from Device. to go “Download Mode/Odin mode”

 3. after pressing Volume Up key, you can see “added” message on Odin. If there is not Added MSG then Be sure to check your Data Cable are working.

Flash Stock Rom on Samsung Galaxy

In case your Device is not detected by Odin, try the following things:

  • you can try reinstalling the Samsung USB Drivers.
  • Reboot your Device and turn off USB Debugging and turn it on again.
  • Try changing the USB cable
  • Connecting to other ports.
  • See more

Step 5, 

After your device recognized by Odin tool and then select the extracted .tar.md5  firmware file from the check box like below. ( If your zip file having only one extracted file then it is “AP” and otherwise select other buttons and locate other suitable firmware files also. You can find what is the correct and suitable file using the file name of extracted files.

  • BL: BL_file name.tar.md5
  • AP: AP_file name.tar.md5
  • CP: CP_file name.tar.md5
  • CSC: CSC_file name.tar.md5 )

Flash Stock Firmware on Samsung Galaxy

Step 6,

Start Flashing Stock Firmware on Samsung Galaxy J3 SM-J337A

1.Now click “Start”. Odin  will be start install files to your Device. Don’t unplug. 

Install Stock Rom to Samsung galaxy

style="padding-left: 30px;">2.Once you get a PASS! message on Odin. you can unplug your Device. but you can see on Device screen. there are several installing. app,android… let’s them to install itself.. (first boot may required some time. so wait)

Flash Stock Rom on Samsung Galaxy

Step 7,

  • If you checked “auto Reboot” then Device auto restart. After restart the Device, then Wipe your Device 
  • you can now enjoy your official firmware.


Errors and Solutions Listed

I can’t Flash Stock Firmware on Samsung Galaxy J3 SM-J337A

please try with this post step by step and Please Make sure that Firmware/Stock Rom is match for your device..

PDA = Baseband version (Ap = PDA)

How to watch PDA and base version

Device >> About >> Baseband version>> XXXXXXXXXX
sammobile >> PDA  >> XXXXXXXX

First 7 letters of PDA and Device version must be same.

If you come across bootloop

  • If you can Remove the battery and then put it back again.
  • Boot to Recovery by holding Volume Up + Home + Power. Choose “wipe data/factory reset” then select “Yes” after then Select Reboot to System. If you want Step by Step dedicate link here

Fail! message/All threads completed. (succeed 0 / failed 1)

Fail! message/All threads completed. (succeed 0 / failed 1)

  • try again and try Different Rom. Be Sure to Step by step with Us. 

Device says “Could not do normal boot odin mode”

I flash my device, Now Device is stuck displaying the logo screen

  • Try to Factory Reset and Wipe cache
  • If you cant reset then you have to Flash Stock Rom again. plz use fresh files

it says “signature verification failed”

  • try Different Rom. Be Sure to Step by step with Us

Invalid Ext4 Image Error

  • Note – If you have a S7 64GB, for example, the PIT must be from the same model.. We have Guide post to solve this problem so, please use it slow your problem. If you want to contact us then please send MSG or Comment.
    • Guide Line 1 – Link
    • Guide Line 2 –  Link

MD5 hash value is invalid” Error

  • this error come to you when Odin is unable to verify the hash value of the file may File is corrupt, File didn’t download properly

I can’t go to recovery mode on Samsung Galaxy J3 SM-J337A

  1. Turn off the your computer and Turn on.
  2. Turn off your Device. ( If you can, remove the battery)
  3. Connect your Device to Computer
  4. Power button + Volume up + Home button.
  5. But you can’t smile till.. because you need to install Stock Rom again, because you image is Broken..

I can’t go to Download mode/Odin Mode

  • found a solution power off the phone,
  • or try to get battery level 0% and Charge it to 50%
  • (if you can, take out the battery put it back in) then quickly hold down vol power and home and it will boot you into download mode

Odin fails at hidden.img.ext4/ Firmware upgrade encountered an issue. please select recovery mood in  kies and try again

  1. Turn off your Device. (remove the battery)
  2. put it to battery.
  3. Go Download mode. by pressing “Power button + Volume down + Home button”
  4. See more..

Odin “fail” error and “nand erase all”/ Nand write start fail on odin

  • There is the discussion about this error in Xda forumGo and solve your problem. 

How to install Marshmallow on Samsung Galaxy J3 SM-J337A

  • we know,some Devices Versions still not received updated android, It depend on country too. imagine  that you are in Sri Lanka and you Device have Lollipop. But your version Thailand Device may be received Marshmallow. So, If there is available Marshmallow or Lollipop then you can also Flash it as a Stock ROM.

How to install Lollipop on Samsung Galaxy J3 SM-J337A

  • we know,some Devices Versions still not received updated android, It depend on country too. imagine  that you are in Sri Lanka and you Device have Lollipop. But your version Thailand Device may be received Marshmallow. So, If there is available Marshmallow or Lollipop then you can also Flash it as a Stock ROM.

How to revert back to the previous version of Android

  • When you Flash new Custom Rom, If it is still testing one then you will definitely get errors.. Like Camera fail, WIFI fail, NFC,GPS fails..  So, in this situation, You have to get previous version of android OS. But is there any chance to downgrade Android lollipop to kitkat or Marshmallow to Lollipop? I would Like to say. YES YOU CAN.. you can use this post to go Back to kikat or Lollipop

My Device stuck on boot logo/keep restarting

  • That means your current Rom is Corrupted or damaged. Now you have to Install Stock Rom to ON your Device. use this post to Flash new Stock Rom.

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