POST error “0197: Tampering CMOS modification detected”

By | March 10, 2022

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If the problem is not resolved after starting the computer, the battery CMOS may be bad or already damaged. replacing the CMOS battery, try leaving the computer on for a few evenings. The battery can sometimes be recharged by leaving the computer on. Correct

Introduction: CMOS Laptop Battery Problem

How do I fix the CMOS error on my computer?

Restart computer. A normal reboot usually generates a new checksum and fixes the error.
Also download the BIOS update. Download the update from the motherboard manufacturer’s website.
Reset BIOS.
Replace certain types of CMOS batteries.
Contact a technician or computer repair technician.

Once the inevitable happens to your PC, the CMOS battery fails. It is possible to both diagnose the cause, due towhich the computer re-enters the time and date each time the computer’s performance slows down. If your solar-powered it.laptop runs out of power and you use it.on the charger, your will have this annoying problem every time you unplug it. In this Instructable, I’ll focus specifically on laptops. In this case, it’s an IBM R40 thinkpad. On many laptops, you can access the CMOS battery from one of the bottom panels. In the Thinkpad R40 you can replace the CMOS and therefore the fan under the keyboard with the battery. Before you make a dime, take out the battery, which sits at the very bottom of the laptop easily and is removed by moving the lever and tapping the tray with your finger, it will definitely fall out. The keyboard detaches very easily by unscrewing the two screws under the black (be careful, I put all the white marks in the photo) illustrations of the sole of the computer. Then the papan is carefully removed by inserting a small screwdriver with a blunt blade in one direction and then in the other. Be careful not to lift it more than an inch as there is a tape underneath it.It’s a hard cable that can be damaged. Gently pull on the bottom of the new keyboard once it’s free, and you’ll put it against the screen if it’s flat. The battery holder can be seen in the cmos on the last photo. The battery was carefully opened and the connector removed.

Required Step 1: Work Items For.

1) Thin nose pliers

2) Insulating tape

3) Small Phillips screwdrivers

4) (1) battery 2032

5)Small flat screwdriver for soldering iron

6)blade c.

7) 2: Solder


8) Find Out Where The Battery Is In Your Computer’s Cmos.

In this image, you can see a small bracket that holds the removed type C cmos battery.

Step 3. Remove The Battery And Determine If It Can Be Replaced

The battery has been removed and the plastic cover has been cut off with a utility knife. The accumulator actually turned out to be quite affordable 2032. Negative and positive spot machines are welded to the feed surface.

Step 4: Carefully Unscrew The Tabs Of The Old Battery

How do I fix CMOS settings?

Look in the CMOS configuration for a package to reset CMOS values, which can be a default or an alternative to loading default security settings.
Atdisplay and select, you will get a response if you are sure you want to load the default values.
Once the Go Delinquent values ​​are set, be sure to return to Save and Exit.

Using needle nose pliers, be carefulLift up the old battery with a twisting motion. Do this carefully so as not to damage the battery to avoid connections.

Step 5: Solder The Contacts To What I Would Call The New Battery.

How to fix CMOS memory not responding?

But often we do not understand the root cause of the problem and therefore have no idea how we can help solve it. If this is happening so that you can use your computer or your friend’s computer, a possible solution is to reset the BIOS settings, and in order to do this, everyone needs to clear the CMOS memory.

Run all the positive and opposite negative surfaces of the new battery with steel wool and a file. Solder the red wire to that particular + battery terminal, and the black wire to the – battery terminal using general purpose electronic solder with a soldering gun. I tried using a 25W soldering iron, but the heat wasn’t strong enough to melt the solder properly.

Can CMOS get corrupted?

CMOS corruption is a common favorite event. Unfortunately, in most cases this is due to a motherboard failure, but this is usually not a rule of thumb. The problem may be in the BIOS / UEFI, most likely the CMOS battery is faulty.


Step 6: After Soldering The Connectors To The Battery, Wrap It With Electrical Tape.

How to reset CMOS settings on a laptop/desktop?

Here we present 6 best ways to reset CMOS to BIOS settings on laptop/desktop. Method 1: Reset BIOS settings to default values ​​using the factory reset option Method 2: Reset configuration data Method 3: Full CMOS reset Method 1: Reset BIOS settings to default using the factory reset option


soldering the terminals to the new battery, wrap it with electrical tape and install it in the laptop. I placed the original dark shrink wrap over the new large piece and wrapped it with duct tape for extra insulation.

Step 8. Cassemble The Computer And Check If It Saves Memory.

Reassemble the computer and check if it saves memory, and after setting the time and date, turn it on for a while. off.

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Find plus or minus the surfaces connected to the new battery with steel wire or a file. Solder the red + wire to the solder terminal of the battery and the black wire to the – terminal of the live battery, preferably with a soldering iron. I tried using a 25W soldering iron, but there wasn’t enough heat to melt the solder properly.


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How do I fix the CMOS error on my computer?

Restart your computer. A soft restart usually creates a pending checksum and clears the error.
Download and flash the BIOS update. Download most updates from the motherboard manufacturer’s website.
Reset BIOS.
Replace CMOS battery.
Contact a technician or PC repair expert.

Can CMOS get corrupted?

CMOS corruption is actually quite common. Unfortunately, in most cases, the problem indicates a malfunction of the motherboard, but this is not the rule. The problem may be in the BIOS/UEFI or the CMOS battery is dead.