Re: ThinkPad T460 nm-a581 rev:3

Hello everybody, I have bought a Lenovo Thinkpad T460 - 20FMS5DY09 with Windows 10 64 bit, BIOS Version R06ET67W 1.41 / Embedded Controller Version R06HT31W 1.11 and ME Firmware Version in BIOS is stated 11.0.12.1001

The issues I have are that I can only install the current Bios Version 1.41 form the Lenovo site. All other will fail (via Windows or USB Stick) as the Notebook will go into a sort of sleep mode after flashing. After holding the power button I get an error message Secure flash authentification failed and 2 + 3 beep sounds,...