Here is Jio F211S Flash File, Official Firmware (stock ROM), Jio F211S Flash File Download the latest Firmware for Jio F211S Flashing With Tool. Operating system optimization, hang on logo or stuck logo only fix, boot loop fix, and dead after the flash fix,
Problem Like
-Hang on logo only or stuck on brand name only
-Continue to restart your smartphone after another software update
-If Dead or soft brick after another software update or flashing different firmware (a different version )
-poor network or no service problem fix with this firmware
There is another way to update your phone software for free, If the warranty on your phone is still running, then take it to the service center. And if you have your smartphone insured, then contact it
Note: Check the term condition of the insurance company first, because the insurance company does not accept the claim regarding software updates.

Here is the Official Flash Tool For Spreadtrum (SPD) Smart Phone, (Android)
You can update the software of your phone very easily and that too at home
You just have to follow some rules
For example
Charge your phone’s battery 50%
Use a good USB cable
Use the Rear USB Slot of your computer
Ok now we will know how you will update your mobile
First Install Samsung USB Driver
Click Double Click And Setup Driver
Open SPD Tool Folder
Click “ResearchDownload”
“Load Packet” and choss “Pac” File And Wait…
Click the “Play button”
And Connect USB Cable With pressing volume down key
And wait for the Pass
Note: Use correct firmware and F211S firmware
Firmware Detail