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How to Flash Stock firmware on Lava Z66

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 How to Flash Stock Rom on Lava Z66

There are some instructions to flash Stock Rom on Lava Z66 using Spreadtrum Upgrade Tool. If you suppose to use this tool then you must have Spreadtrum Device. your device may get bricked And flashing stock ROM is the only way to go out. To perform this advanced process of Flashing stock ROM please Go Step by step and We include Lava Z66 Stock firmware link to This guide. If you got any error then leave a comment. 



Why Spreadtrum flash tool?

SPD Upgrade tool which is also known as Spreadtrum flash tool is a cross-platform application. We use the Spreadtrum flash tool for Flash custom recovery, flash Stock Rom, and to fix the hard brick device. This is a very user-friendly tool and This allows you to flash stock firmware on Spreadtrum smartphones and Tablets only. It will not support devices having chipsets other than Spreadtrum. Read More – Check whether my one is SPD or any else



Why I want to Flash Stock Firmware

If you have an Android device, you may require flashing Stock ROM/Firmware under various circumstances. If you have flashed custom ROM, Custom recovery, or Custom kernel and facing several issues or if you want to Full Unroot,  Unbrick, Rollback, then you have to flash stock ROM to bring your device back to its original state.  Read More – Stock Rom vs Custom Rom

If you want to Flash Upgraded Rom then you have to Find Upgraded Stock or Custom Rom. (Kitkat, Lollipop, Marshmallow, Nougat.) we provide only Official Rom because all the glitches and bugs are debugged and you can get the latest OTA update and install them 




DISCLAIMER

Proceed at your own risk. flashstockrom.com will not be responsible for any mistake and any damage that might occur to your device while performing the following operation. Don’t skip any step.





 

Flash Stock Rom on Lava Z66


Requirements:





  • Phone’s Processor Must be SpreadtrumCheck it
  • This Stock Rom has to be installed on this model only.
  • Your android smartphone should have at least 40-50 percent of the battery to perform the flashing process.
  • USB drivers
  • After Root, What can Do 

Step 1

Download Lava Z66 USB Drivers

If you can connect and share data phone to pc then you no need to install this. if not,  Download and install the Spreadtrum USB Driver on your PC.

How to Flash Stock firmware on Lava Z66

Step 2

Download Lava Z66 Stock Rom/Firmware

Download Stock Rom (PAC) for your Android Smartphone. this is the main software in your phone.

Read More – Enable OTG support on Lava Z66 Device

Step 3

Download and Unzip SpreadtrumUpgrade Tool on your PC.

Step 4

After that,you will be able to see the following files:

How to Flash Stock firmware on Lava Z66

Step 5

Click “Upgrade Download” Connect your Lava Z66 to the PC, once your Spreadtrum Upgrade Tool is launched. (Remember your device switch off)

How to Flash Stock firmware on Lava Z66

Step 7

If your Lava Z66 is connected successfully to the PC, click on the Load Packed Button and add the.PAC file. (Stock Rom in.PAC)

How to Flash Stock Rom on Celkon

Step 8

Start Installing Stock Firmware to your Lava Z66

If you have successfully added.PAC file in Spreadtrum Upgrade Tool

clicks on the Start Downloading button to begin the flashing. Don’t unplug the phone cable and Wait.

How to Flash Stock Rom on Celkon

Step 9

Your Lava Z66 will restart automatically during the flashing process. Don’t unplug the phone cable and Wait.

How to Flash Stock Rom on Celkon

Step 10

Once the flashing process completes, you will be able to see the Green Passed Message in Spreadtrum Upgrading Tool.

Read More – Increase Internal Rom SIZE After Root on Lava Z66

How to Flash Stock Rom on Celkon

Step 11

If you come a Cross Green Pass then you successfully Flash Your Lava Z66. Now unplug the USB cable and You had better Hard reset It before Use it.  (First Boot Normally Slow)

Done!

Read More – Top 10 Rooted Android Apps For Lava Z66



 

Frequently Asked Questions Listed Below

Lava Z66 is totally dead

The phone doesn’t respond to the power button or only vibrates after pressing the power button.

progress bar stuck at waiting

After clicking Start Downloading” and connecting the Spreadtrum Device, the progress bar gets stuck Waiting…

  • Make Sure the phone is Turn off with enough charged battery.
  • Reinstall USB drivers, try with different USB Port
  • Tap and Hold the Volume down button while connecting to the PC.
  •  Read more

USB device not recognized

This error is not related to a phone or tool. however, you can fix it from here.

Failed: Operation failed Lava Z66

  • Try different PAC file
  • Reinstall USB drivers, try with different USB Port
  • Try the Current version of the Research Download tool

Failed incompatible partition Lava Z66

  • Try the Current version of the Research Download tool
  • Try with this method

Image size is over its partition

  • Try the Current version of the Research Download tool
  • Try with this method

Failed: Open port fail

  • Disconnect your Phone from the PC and Remove the battery. after, Tap and hold the Volume down button when connecting to the PC.
  • Try the Current version of the Research Download tool

Failed: User cancel – Lava Z66

  • Press and hold the Volume down button when connecting to Computer for flashing and please don’t release till flashing is complete
  • Read more

Failed: uart send error

  • Try different PAC file
  • Reinstall USB drivers, try with different USB Port
  • Try the Current version of the Research Download tool

I can’t Flash Stock Rom to Lava Z66

Please follow the guide step by step again or Leave a Comment with an error message then we can help you. Read more

Lava Z66 stuck at Boot logo or Bootloop

The first boot is normally Slow so, please wait 5min. If not works then remove the battery and insert it back. Try to reset your phone. If it gives any error code please Leave a comment with it. Read more

Lava Z66 not works after flashing

What is the error message that you get? Can you give it, then we can help you. However, we can recommend you to follow the guidelines step by step again.

Fix Bootloop /continuously restart on Lava Z66

Normally First time you Turn on the phone It will get time so give it 5 min. If it does not work after then Try to Hard Reset Your Lava Z66 Device. More Details

How to Write IMEI on Lava Z66

Sometimes, after Flashing your phone, you have to Rewrite IMEI. so you may need to Flash IMEI too. use this guide for it.


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