Flash Recovery Boot Block Jumper is used when there is a power interruption while you performing update to the system BIOS. Once the power to your system interrupted and it won't work again. Here we list the steps to perform flash recovery boot block jumper.

* Power off your machine

* Unplug all attachments to your machine

* Remove your system cover and other adaptor

* Find clear CMOS/Recovery Jumper on your motherboard.

* Change pin from 1-2 to 2 -3

* Replace all adaptors and covers

* Put BIOS disk in the disklet and power on the machine 

* System will start and you will hear beep sound and it will update BIOS

* Now again power off your machine and remove covers and adaptors 

* Now change pin to original position 1-2

* Replace covers and adaptors and power on your machine

* You may now want to update your BIOS

Note:

* It is an highly risky task and you is advised not to do this without proper knowledge 

* Power interruption during BIOS update may lead to other problems

* If you dont have enough knowledge in this and it may lead to complete loss of data and files.

Hope this information might be useful for you, Happy Computing !