HP Elitebook 840 G6
CRESCENT-6050A3022501-MB-A01(A1)
CT:PHWHA00WBD126S
Product ID:7JQ82UC#ABA
SN:2TK9490LCW​

After updating the bios the laptop reboots and updates the bios cyclically. Cannot complete the bios update. I tried to flash the bios from another laptop and got Endpoint Security Controller problem reported on Boot Screen. Please help with fixed Bios. Original bios backup attached....

I Try fixed bios, but see automaticaly power on when connect battery or connect PSU, PowerLed and CapsLk blincking on also (always blinking every 0,5 -1 sec) ....

Board part no : 6050A3022501-mb-A01(A1)
​
On the case:
Hp Elitebook 840-G5
S/n : 5CG8346Y8F
Prod I'd : 4DR71UC#ABD
CT: PHWGH00WBDJEV3

But after reading bios i see another S/N and model in Bin file:
Hp Elitebook 840-G6
S/n : 5CG0134DTS

Problem: Notebook turned off notebook with the power button, notebook go in sleep mode. Next day after trying power on with power button - it can`t start: no picture, PowerLed and CapsLk lighting (blinking and resetting every 5 sec) allways. After disconnect battery and connect battery or...

Sorry, main bios added....

Hp elite book 840-G5
Board part no : 6050A3022501-mb-A01(A1)
S/n : 5CG8346Y8F
Prod I'd : 4DR71UC#ABD
CT: PHWGH00WBDJEV3

Problem: I turned off notebook with the power button, notebook go in sleep mode. Next day i trying power on with power button, but it can`t start: no picture, PowerLed and CapsLk lighting (blinking every 5 sec) allways. If i disconnect battery and connect battery or connect PSU i see autostart - PowerLed and CapsLk lighting on turn on by themselves​. Please help, i think this is a Bios problem....