How to Flash or Upgrade HTC Desire 620G dual sim with SP Flash tool ? (tested)

You have to HTC Desire 620G dual sim phone device ? and in problem like auto turn on internet connection, auto turn on wifi connection, auto apk installing, auto gone balance, hang on logo, restarting, pattern lock, screen lock these problem you can solve using this method without any box just need to some impotent i think it is to be with you which one you can see in requirement tab there to be which need for above type problem solve this method you can use without any box its done from flash tool its also available here, and impotent of must be installed phones driver, you can't flash or upgrade if not installed in your computer or laptop it must be installed and also available in this post, here all are linked that tested and working fine just in one try this method and this is for everyone who new fresher technician or experience technician in android software related, before use remember of must be working well all are required which you can see in this method it below to be mention, different to be error when you try to flash or upgrade first of USB not recognized this error possible when micro USB not working, battery not charged, phone USB socket not working properly so if you fail with this method just write down your comment on below comment box i will soon possible to fix it, first take backup into device if live otherwise dead you can't take backup, this method use when device in dead condition also but must be in software problem in hardware device not be live.

Must read users:
This tutorial tested by me without any error but remember here some impotent question for successfully done with this tutorial, must be working device sub socket, must be working micro usb cable, must be working volume up or down keys for boot device, must be working computer or laptop usb socket, this tutorial you can use without any box it's simple.

Required for HTC Desire 620G

• HTC Desire 620G dual Sim with good battery charged, it to be 80% up, and do not try with low battery
• HTC Desire 620G dual Sim tested Stock ROM Firmware | Download Mirror | Mirror
• HTC Desire 620G dual Sim USB (Flashing) Driver | Download here
• HTC Desire 620G dual Sim Flash tool | Download here
• Quality Micro USB Cable
• Computer or Laptop