Flash Samsung M31 firmware, Specifications and flashing guide

Flash Samsung M31

Download the latest version of Samsung Galaxy M31 flash file and flash it with odin tool. Flashing will update Samsung M31 mobile. With flashing you can fix bootloop, unlock your M31 mobile, get rid of hanging etc.

So download Samsung Galaxy M31 firmware on your computer and follow the full guide how to flash your sm M31 with flash tool.

How to download Samsung M31 flash file.

To download Samsung M31 flash file on your computer, click on the download button below, downloading will start after few time. Locate the flash file in a separate folder on your computer.

Downloading Samsung Galaxy M31 flash file (Stock Rom).

Samsung M31 flash file.

File Name: Sm-M31-stock-rom.zip
File Size: Not available
File type: .Zip

Flash Tool name: Odin3
File Size: 58MB
File type: .exe

Drivers name: Samsung usb driver
File Size: 20MB
File type: .exe

Device info
Brand Samsung
Model SM-M315F
Mobile Model Name Galaxy M31
Ram 6GB
Rom 128GB
Front camera 32MP
Rear camera 64MP, 8MP, 5MP, 5MP
Battery capacity 6000MAH
Operation System Android
Android Version 10
Android Name Android 10
Processor 2.3GHz octa-core
(4x2.3GHz + 4x1.7GHz)
Processor Make Samsung Exynos 9611
Skin One UI 2.0
Expandable storage Upto 512GB
Color Black, Blue

How to flash Samsung Galaxy M31


  • Usb Drivers.
  • Flash file.
  • Flash tool.
  • Usb Cable
  • Battery charged at least 50%.

Steps to flash Samsung M31 with stock rom.

Method to flash with 5 files in Odin flash tool.

  • drivers for Samsung Galaxy M31 and install in your pc.
  • Odin flash tool and save on your computer.
  • Download flash file for Samsung Galaxy M31 it may be in .zip format, and save on your computer.
  • Extract the downloaded flash file with 7zip or winrar.
  • After extracting you will get files like AP (System and Recovery), BL (Bootloader), CP (Modem, Radio) CSC (Country / Region / Operator) Home_CSC (Country / Region / Operator)
  • Now launch the odin flash tool.
  • Select or load the each file one by one in its respective tab.
  • If you want to format user data then load the CSC file in csc tab or if you want to keep user data safe then load the Home_CSC file in csc tab.
  • Now power of or shut down your Samsung Galaxy M31.
  • Now boot your device in download mode by pressing volume down + Power button + home key together till you see download mode. Now press the volume + to continue and volume - to exit download mode.

    If above method doesn't work with your device then follow the other methods given below to take your mobile in download mode.

  • Method 2 VOLUME DOWN + VOLUME UP then USB cable



    Method 5 (Note9) USB cable + VOLUME DOWN + BIXBY

    Method 6 (Note10) POWER + VOLUME UP
  • Now connect your device with computer or pc with usb cable when connected successfully you will see a green highlight (port number) in odin flash tool.
  • Do not do any extract (ticks) changes in odin boxes options, let them default.
  • Now click on start button and let the process complete. Do not unplug or disconnect device until you see a pass message in green highlight in odin flash tool. When flashing is done successfully, your device will reboot automatically itself. Now you can disconnect your device from PC.
  • It may 5-10 minutes to boot first time after flash so keep patience. After your mobile is completely ON now setup your device and start enjoying.

Method to flash with 1 file in Odin flash tool.

If you downloaded flash file or firmware for your Samsung Mobile after extracting you get only one file AP(system and recovery) then you have to follow some more steps to flash your Samsung mobile device.

Only load the AP file in AP filed tab and let others fields tabs empty.
Now follow the same instructions given above after.

Why we need to flash a mobile phone ?

Every mobile device is build with two major component as hardware and software. So there may only be two problems only related to hardware and software. Hardware faults can be solved reparing or changing the component of hardware. In hardware problem our mobile can not power on or some hardware functions will not work.

But when a software problem occurs in our mobile phone, our mobile will cause there issues.

  1. Mobile will stuck on logo.
  2. We forgot our device screen lock or security lock.
  3. Imei number or baseband becomes null. This will cause network issue.
  4. Device is running very slow.
  5. Some system apps are not working.

To get rid of these software related problems we need to install stock rom (firmware) in that mobile device with flash tool.

What is flashing ?

The whole process of installing stock rom(firmware) via a flash tool in a mobile phone, is called flashing.

Also check.

Remember before flashing.

  1. Flashing will erase all data from your device such as downloaded apps, contacts, media files etc.

  2. If you have previously logged in your Google account in your mobile then after flashing you will need to sign in with same Google account (Gmail) that was previously signed in.

  3. If your device stuck on logo then you can flash it first and then after you can bypass frp (Factory reset protection).

  4. If your device is working properly and you want to upgrade it by flashing then first turn on the OEM unlock to prevent frp security. You have to enable developer option first to enable OEM unlock. To turn Developer Option On, go to settings/About phone/Software information and click the build number 7 times. Then go back and you will see developer option enabled in settings. Now open developer option and scroll down and find OEM unlock and enable it.

  5. Make sure your pc is free of any virus or junk.

  6. Don't unplug mobile from pc while flashing is in progress.

  7. Do it carefully.