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: Power off the unit, unplug the power cord, and remove the computer cover [8, 10]. Jumper JP35 : Find the jumper block labeled
To reset the BIOS password on a Lenovo ThinkCentre M720q , the most effective hardware method involves using the Clear CMOS/Recovery jumper lenovo thinkcentre m720q bios password reset
There are several methods to reset the BIOS password on your Lenovo ThinkCentre M720q:
Power off the computer and disconnect the power cord and all cables.
When official support is unavailable—perhaps due to a second-hand purchase without a receipt or a defunct company—the user enters the gray area of hardware-level intervention. For the ThinkCentre M720q, this is not for the faint of heart. It often involves shorting specific pins on the BIOS chip itself, a procedure known as an SPI (Serial Peripheral Interface) flash attack. An advanced user would need to disassemble the tiny chassis, locate the 8-pin BIOS flash memory chip, and use an external programmer (like a CH341A) connected via test clips to read, modify, or re-flash the firmware. Alternatively, some have discovered specific pin bridges on the motherboard that, when shorted during a precise moment in the boot process, can bypass the password check. These methods require a steady hand, detailed schematics, and a willingness to accept the risk of permanently bricking the motherboard. This public link is valid for 7 days
Carefully pull the plastic jumper straight up off . Use tweezers if your fingers cannot reach it easily.
: Disconnect the AC power adapter and all peripheral cables. Remove the computer cover by loosening the rear screw and sliding the chassis forward. Locate the Jumper : Find the Clear CMOS / Recovery jumper (labeled as SW_CLR_CMOS
The BIOS password is essential for several reasons: Can’t copy the link right now
A pair of tweezers or a plastic opening tool (optional, to help move the jumper).
Tip: Some users report that removing the RAM from the backside is also critical during this specific boot process for the password to clear fully.
To reset the BIOS password on a , you must use the physical Clear CMOS jumper on the motherboard. Standard methods like removing the CMOS battery are often ineffective because these models store passwords in non-volatile memory. BIOS Password Reset Procedure