: Turn off the computer and disconnect all cables, including the power adapter. Open the Chassis
For the , the reset involves moving a jumper on the JP35 jumper block (typically located in the top-left corner of the motherboard near the Wi-Fi antenna).
If you cannot locate the Clear CMOS jumper, or if the jumper method fails, you can try removing the CMOS battery. This method works by physically cutting power to the volatile memory that stores the BIOS settings.
: Flashing the BIOS chip carries significant risks. An incorrect BIOS dump or corrupted write can permanently brick the motherboard. Only attempt this if you have prior experience with EEPROM programming and understand the risks involved. The BadCaps forum contains numerous threads where experienced technicians share BIOS dumps for specific M720q versions. lenovo thinkcentre m720q bios password reset
This guide provides a step-by-step walkthrough to safely clear the supervisor password using the hardware maintenance jumper. Important Warnings Before You Begin
: In its standard operating state, the jumper is usually on pins 5 and 6 . 2. Move Jumper to Maintenance Mode
Since physically resetting the BIOS password on the Lenovo ThinkCentre M720q typically requires contacting Lenovo support (due to security certifiers like TPM 2.0), the most effective "feature" to create is a that handles the challenge-response authentication system built into the hardware. : Turn off the computer and disconnect all
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Turn on the computer and immediately press repeatedly to enter the BIOS setup utility.
Unplug the power adapter, monitor cables, and all USB devices. This method works by physically cutting power to
Connect only the power adapter and a monitor to the unit. Do not touch the open motherboard while the unit is plugged in. Press the to turn the unit on.
Once you've regained access, take steps to prevent future lockouts: