Windows 10: Lenovo z710, Help black screen, after Bios changes

Hi
I have a Lenovo z710
I upgraded my Bios with a modded bios, to unlock futures
After several normal boots, to see it's working good
I entered yesterday, Bios, and only enabled,, overclocking and 3-4 other disabled futures
After, i tried to boot, I listened a big noise from fan working at maximum, screen remains black,, after 15 seconds, power shuts off, it starts again - closes again,,, I removed laptop external battery, power supply, i pressed power button 1 min for hard reset, to remove electricity from internal circuits
I opened the laptop bottom, removed CMOS battery, for 12 hours, put a coin
I removed and put again my ram, 2 sticks
I put again the CMOS battery, and power cord
Laptop starts immediatelly alone, same problem , screen black, fan working at maximum, big noise
I can't enter Bios with Novi button or Fn R or Fn F1 or Fn F2
How can, I reset Bios to factory presets, if it's not affected by CMOS battery,
HOW?? By short circuiting Bios EEPROM with what??? or
reprogrammed with a USB SPI Programmer and one SOIC8 SOP8 cable
Any other way??

:)

 

Black screen error

Hello,

There are several reasons why you are facing a black screen issue. One of these is due to outdated or incorrect device drivers. For us to figure out what's causing this, provide more details by answering the listed questions:

• Can you confirm to us if you are using a laptop or a computer?
• Have you made any recent changes to your device prior to this happening?
• What exactly were you doing when the error occurred?
• Have you tried any troubleshooting steps to resolve this? If yes, specify all of the steps that you have done.

As an initial part of troubleshooting, we suggest following the steps given on this article:

Troubleshoot black screen or blank screen errors. This will help you diagnose and rectify most of the known black screen concerns.

We will wait for your response.

 

I am having black screen issue with Lenovo all in one pc.

Hi Antony,

This issue may occur due to corrupted system files running on your computer. For better assistance, we would like to ask the following:

• Have you made any recent changes on your computer prior to the issue?
• Is there an error message displayed when experiencing the black screen?

Meanwhile, we recommend that you follow the troubleshooting steps provided on this article:
Troubleshoot black screen or blank screen errors. Based on your description, we suggest that you focus
on the steps under this section: I see a black or blank screen after signing in to Windows 10.

We'll keep an eye out for your response.

 

Windows 10 flashing desktop lenovo z710

I have a lenovo z710 laptop ,upgraded to windows 10,after login goes to desktop and flashes can't go to any programs ,can move cursor has loading circle