My led indicators for caps lock num lock etc not workinh in my lenovo G570 laptop

NUMBER LOCK
You have press the NumLk key (number lock) and this changes the right hand keys to a number pad.
Press the NumLk key (also doubles as the ScrLk key to toggle the Number lock). it is near the F12 function key. When the NumLk has been enabled a LED light is turn on to indicate this function has been selected. Press the NumLk key again to turn off the Number Lock and Num Lock LED indicator..

That is a security configuration on HP Laptops, depending on the way they blink is the problem your machine has.

Here is the web page where this info is posted, in case you need more info, hope this helps you to determain.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443366&lc=en&dlc=en&cc=uk&lang=en&rule=26781&product=3816592
This document pertains to HP Notebook PCs with the HP Unified Extensible Firmware Interface (UEFI) beginning in late-2008. On startup, you may see a blank screen. If the diagnostic utilities detect a specific problem with hardware components, the fan turns on, but the screen remains blank. To help identify the cause of the problem, various LED lights on the keyboard blink a series of codes. The diagnostic utilities use the LEDs near the Num Lock or Caps Lock keys to blink a series of error codes. At the end of the series the blinking stops. The pattern of blinks will occur any time you attempt to start the computer until the error is resolved. Battery power LED blinks The Battery power LED indicates the condition of the power supply. When starting the computer, or when the computer is in operation, use the chart to identify the power condition. Battery Power LED Component Tested Error Condition Battery power LED off, and Caps Lock/Num Lock off Battery or AC Adapter AC adapter not connected or failure

Battery low charge or failure Battery power LED blinking Battery Insufficient charge on the battery When new computer is used for first time, the white LED light for the AC power connector blinks. Battery is still in "Shipping Mode", the light continues to blink even when AC power is connected.

To resolve, turn off notebook, connect AC power and allow battery to charge for at least 30 minutes, then start computer. LEDs near Caps Lock and Number Lock keys blink when starting notebook The LED lights near the Caps Lock and Num Lock keys will blink if an error is detected during the start up process. The LEDs will blink a number of times in a sequence and then stop. The number of blinks in the sequence indicates what component caused an error when it was being tested during start up. If the LEDs stop blinking and the computer does not start, you can press the power button again to repeat the tests. Count the number of blinks, and use the chart to identify the error condition. Knowing the number of blinks is helpful when you contact an HP support agent for technical help. Caps Lock/Num Lock LED Component Tested Error Condition LEDs blink 1 time CPU CPU not functional LEDs blink 2 times BIOS BIOS corruption failure LEDs blink 3 times Memory Module error not functional LEDs blink 4 times Graphics Graphics controller not functional LEDs blink 5 times System board General system board failure LEDs blink 6 times BIOS BIOS authentication failure

First remove the battery and power cord for about a minute. Then plug back in and see if that helps. Otherwise please read the following:

LEDs near Caps Lock and Number Lock keys blink when starting notebook The LED lights near the Caps Lock and Num Lock keys will blink if an error is detected during the start up process. The LEDs will blink a number of times in a sequence and then stop. The number of blinks in the sequence indicates what component caused an error when it was being tested during start up. If the LEDs stop blinking and the computer does not start, you can press the power button again to repeat the tests. Count the number of blinks, and use the chart to identify the error condition. Knowing the number of blinks is helpful when you contact an HP support agent for technical help. Caps Lock/Num Lock LED Component Tested Error Condition LEDs blink 1 time CPU CPU not functional LEDs blink 2 times BIOS BIOS corruption failure LEDs blink 3 times Memory Module error not functional LEDs blink 4 times Graphics Graphics controller not functional LEDs blink 5 times System board General system board failure LEDs blink 6 times BIOS BIOS authentication failure

Most likely the motherboard gone bad. Will need to be replaced.

Well hellonihar, As far as your issue is concerned it seems to be some hardware issue. LED
Component
Error Condition
Blinking battery power LED
Battery
Insufficient charge on the battery
Blink: 1 - Caps Lock/Num Lock
CPU
CPU not functional
Blink: 2 - Caps Lock/Num Lock
BIOS
BIOS corruption failure
Blink: 3 - Caps Lock/Num Lock
Memory
Module error not functional
Blink: 4 - Caps Lock/Num Lock
Graphics
Graphics controller not functional
Blink: 5 - Caps Lock/Num Lock
System board
General system board failure
Blink: 6 - Caps Lock/Num Lock
BIOS
BIOS authentication failure

it is not on the keyboard, but on a LED light on the panel, on the hinge cover.

besides the beeps which indicate a motherboard timing issue. There should be LED blinking codes given on the front LEDs. I will include the blink codes below, but lets try to at least get the system up and running. First, I would like you to remove the RAM sticks from the laptop and just reseat one stick back in the machine. Try to boot with that one stick, if it does not, try the other alone. There have been issues when reseating the ram or re-installing it have temp. fixed the issue. If it does reboot, go to the HP support site, put in your model number of your laptop and download and install an updated BIOS. Below are the blink codes that may narrow down the problem.....

HP DV6000 LED Blink Codes

LED Component Error Condition
Blinking battery power LED Battery Insufficient charge on the battery
Blink: 1 - Caps Lock/Num Lock CPU CPU not functional
Blink: 2 - Caps Lock/Num Lock BIOS BIOS corruption failure
Blink: 3 - Caps Lock/Num Lock Memory Module error not functional
Blink: 4 - Caps Lock/Num Lock Graphics Graphics controller not functional
Blink: 5 - Caps Lock/Num Lock System board General system board failure
Blink: 6 - Caps Lock/Num Lock BIOS BIOS authentication failure

When the RH side of the keboard types numbers instead of letters then the Num Lock (number lock) key has been pressed.
Press the Num Lock Key again to return to letters again, usually this is usually done by pressing the Fn key plus and probably the Scroll keys, this key will be also marked NumLk, and there will be a LED light that will indicate when the number lock is on.

Your EX 110 receiver has 3 indicator lights (LEDs) that display the status of the Caps lock, Function key, and the Num lock during normal operating mode. These lights will also flash when the connect button on the receiver is pressed.
LED A: Indicates that the Caps Lock (Capital lock) key is on when lit.
LED F: Indicates that the F keys are in Standard F Keys Mode when lit and in Enhanced F Keys Mode when the LED is off.

• Your EX 110 keyboard has an Enhanced F Keys Mode for F keys that provides additional functions you can program. See Knowledge Base article 9526.

LED 1: Indicates when the Num Lock (Number lock) key is on. This function allows the number pad to produce only numbers

Your EX 110 receiver has 3 indicator lights (LEDs) that display the status of the Caps lock, Function key, and the Num lock during normal operating mode. These lights will also flash when the connect button on the receiver is pressed.
LED A: Indicates that the Caps Lock (Capital lock) key is on when lit.
LED F: Indicates that the F keys are in Standard F Keys Mode when lit and in Enhanced F Keys Mode when the LED is off.

• Your EX 110 keyboard has an Enhanced F Keys Mode for F keys that provides additional functions you can program. See Knowledge Base article 9526.

LED 1: Indicates when the Num Lock (Number lock) key is on. This function allows the number pad to produce only numbers