HP 15 R062TU No Display

[gaurav]

Model : HP 15 R062TU
P/N : LA-A992P
Problem : No Display but caps lock and num lock working & external display also not working
Testings : First check jlvds connector supply +lcdvdd, its missing then check rtd2132 it's not generated lvds supply, there is no sorting on board afterthat I flash it's main bios and check, white raster comes on led and keyboard data working then change led display ok.