How To Unlock Vivo Smartphone, Y71 Y91 Y53 Pattern Lock and FRP

Updated: Nov 12, 2019

in this post we are getting to unlock a vivo smartphone having frp and pattern lock each,

its an easy step by step guide to resolve this sort of lock problems.

pre requisite

  1. A PC

  2. Miracle Box Installed (How To Install Miracle Box setup.)

  3. Qualcomm Driver Installed (How To Install Qualcomm Driver. )

before we are able to begin you would like to understand that each qualcomm chipset driver have their totally different engineer files. if you are doing not choose an identical engineer firehorse file,

you will get bootload id error.

See More:

Fire Horse Programmer File All Models.

step 1 - begin miracle box.


step 2 - navigate to QualComm Tab and choose Read/Format Flash

step 3 - connect Your Device By Pressing Vol up + Vol down Then Insert USB.

And check for Driver Installation, when successful connection you'll See your device in device manager in ports as qdloader

step 4 - currently choose Firehorse engineer :- prog_firehorse_8917

please check the firehorse chipset no. it is in several name however the version stay same as 8917.

step 5 - Select Factory Reset and next safe mode. and press Start Button

Credit :-


After A done msg in Log Window you can remove you device and reboot it ,

it will take some time in boot up and start as a new smartphone.

if you've got any drawback with guide, watch our video..

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