ZTE Grand S Flex Firmware Download.
You are about to download ZTE Grand S Flex stock rom.
You can download all ZTE Grand S Flex Flash File from Blogthetech.

ZTE Grand S Flex Firmware Information

Rom Name ZTE Grand S Flex Stock Firmware Rom
Based On ZTE Stock UI
Rom OS Version Android 4.1 Jellybean
Rom Type Odexed
Socs Qualcomm
Software needed ZTE Grand S Flex Stock Recovery
Compress Zip format
Codename ZTE Grand S Flex

How to Flash ZTE Grand S Flex Firmware

All you need to flash ZTE Grand S Flex firmware is your ZTE Grand S Flex stock recovery and an SD Card

Why we need ZTE Grand S Flex Firmware

It’s always advisable to backup ZTE Grand S Flex Firmware after purchasing it. You are going to need it for the following reasons.

Downgrade or Upgrade ZTE Grand S Flex.

You can use the ZTE Grand S Flex Stock rom to downgrade your smartphone or upgrade your smartphone. It depends on the release of the firmware or your choice if the option is available.

ALSO CHECK:  [Flash File] ZTE Blade A530 Firmware Download [Stock Rom]

Unbrick ZTE Grand S Flex.

ZTE Grand S Flex Stock Rom can also be used to unbrick any ZTE Grand S Flex.  Smartphones can be bricked in the process of rooting or flashing a custom firmware or rom or recovery.

Unroot ZTE Grand S Flex.

You can also use ZTE Grand S Flex stock firmware to completely unroot any ZTE Grand S Flex smartphone. You also can regain your warranty by properly flashing the official ZTE Grand S Flex stock firmware. It can be done by reverting back to the official stock firmware of ZTE Grand S Flex if your smartphone has tampered.

Fix Issues on ZTE Grand S Flex.

Your ZTE Grand S Flex might develop issue which might be unknown to it you, if it a software related issue, you can restore and fix it by flashing the stock firmware for ZTE Grand S Flex. Today, we are presenting all the Official Firmware, both Official releases and updates following it. You can download all of ZTE Grand S Flex Firmware here. If you experience any problem with any of the files, don’t hesitate to tell us.

Requirements to flash ZTE Grand S Flex Firmware

  • A working detectable USB Cord.
  • A Windows PC.
  • A Good Battery Backup
  • ZTE Grand S Flex Stock recovery.
  • ZTE Grand S Flex Official Firmware

Note that flashing a ZTE Grand S Flex firmware to your phone might erase everything in your phone including contents in internal storage. It is always very advisable to backup your contents to an external storage or a PC. If your phone is bricked and can’t be accessed, I guess there is nothing you can do.

Follow the next procedure below if you wish to flash ZTE Grand S Flex Stock Rom.

ALSO CHECK:  [Flash File] ZTE Tempo X N9137 Firmware Download [Stock Rom]

How to Flash ZTE Grand S Flex stock rom using SD Card

  • For you to flash ZTE Grand S Flex, you will need your stock recovery.
  • Download the firmware to your PC or phone and extract the zip file.
  • Inside the zip file, there is another zip file for the firmware.
  • Rename the firmware to update.zip or just leave it the way it is.
  • Copy the downloaded firmware to the root of your SD card.
  • Boot your ZTE Grand S Flex to recovery by powering it off.
  • Android stock recovery flashing
    Navigate in Android stock recovery
  • Press Volume Up and power button or press both volume up and down and Power button simultaneously to boot to recovery.
  • Choose apply update from SD card.
  • Select the Update.zip or the downloaded stock firmware file and the flashing will start.
  • Once it finishes, wipe data and reboot your phone.


I am not responsible for any harm that might come to your phone. Please, make sure you are flashing the right firmare, stock rom, or flash file to ZTE Grand S Flex.

Before flashing firmware or files, YOU are choosing to make these modifications, and if you point Your finger at us, we will laugh at you. [KIDDING.]

Because of firmware dumping variations, Firmware file formats may differ. Due to decompressing access, I might not be sure of the file type and because of that, I have provided a different method by which you can flash much firmware of different chips. Kindly indicate if yours is missing.
If the provided firmware you need to be flashed is MTK and comes with MTK Flash Files, follow the procedure below to flash MTK smartphones. MTK flash files come with preloader, boot.img, scatter file and etc.
If your smartphone is a Spreadtrum smartphone or the flash file comes in .PAC format, it means you are going to flash it with Spreadtrum Upgrade Tool.
If your smartphone is running Qualcomm chipset or the firmware you downloaded for is in .mbn format, or If the ZTE Grand S Flex Firmware is in .CPB format, just follow the procedure below to flash it.
If you are flashing other smartphones like MediaTek, SpreadTrum, Qualcomm Snapdragon and other Chipset, Check the instruction below


Daniel John

Android biggest fan and a Tech Nerd

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