Probook 4540s charging led blinking

My charging led blinks and the laptop won't power on
This happens if i connect the charging jacks(without the battery) in the following order: 1st insert in the laptop 2nd in the outlet, If i do it backwards, first in the outlet then i connect the charging jack to the laptop it works fine, It bothers me that every time i have to dissconect the charging jack from the laptop and plug it in after i ve plugged the plug in the outlet. I have 2 friends with same laptop and they don t have this problem.

Hi mihailgreceanu,
Your Probook 4540s is a commercial product and to get your issue more exposure I would suggest posting in the commercial forums. Here is a link to the Commercial Notebook forum.
Thank you
Please click “Accept as Solution ” if you feel my post solved your issue.
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Thank you,
BHK6
I work on behalf of HP

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Hi,
I don't know people call this but we normally call it as an "handsake", all smart batteries should do this way.
Regards.
BH
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MacBook Pro won't turn on after crash. Charging LED blinking rapidly

Hi. I hope you can help me.
I have a macbook Pro 13", from september 2012, which crashed earlier today:
I was charging my iphone through USBport on my macbook (not an Apple USB-iPhone power-cable) .
My MacBook was charging through the magsafe charger (about 30% power i think).
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My MacBook crashed instantly. I took out the USB cable, tried to turn on my mac, but nothing happened. There was no light in the magsafe LED.
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Try the SMC reset again:
https://support.apple.com/en-us/HT201295
Then try a NVRAM reset:
https://support.apple.com/en-us/HT204063
Then try a safe boot:
https://support.apple.com/en-us/HT201262
If no success, then you will have to take it in for service.
Ciao.

Charge led blinks every second when Laptop NX9420 is turned off.

I have a new battery, in a HP Compaq NX9420 and it can run the laptop for 2 hours isch,
it can also run it on power adaptor only, battery removed, so both battery and charger is ok.
But,
When turning off the laptop from within windows it goes off and all is normal, after some 3-12 hours the charge led starts to blink amber/orange every second, if I press on/off button nothing happens, I have to remove the battery and slap it in again then it starts,
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Hi,
I don't know people call this but we normally call it as an "handsake", all smart batteries should do this way.
Regards.
BH
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

MacBook Pro won't turn on after crash. Magsafe charger LED light blinking rapidly

Hi. I hope you can help me.
I have a macbook Pro 13", from september 2012, which crashed earlier today:
I was charging my iphone through USBport on my macbook (not an Apple USB-iPhone power-cable) .
My MacBook was charging through the magsafe charger (about 30% power i think).
I took the phone out to make a call, when that was done, I reconnected the phone to my mac for further charging.
My MacBook crashed instantly. I took out the USB cable, tried to turn on my mac, but nothing happened. There was no light in the magsafe LED.
The crashing has happened before, when I've been charging my phone through USB connections, but I've always been able to turn my mac back on.
This time nothing happened when I pushed the power button. It had comepletely shorted out.
BTW. Earlier today I received a "storage almost full" warning on my mac, and I was actually in the middle of cleaning that up (deleting downloads and trash files).
Typical and just my luck!
Now, a few hours later, I tried restoring SMC (shift+ctrl+alt+power), and now the charger LED is blinking rapidly (but faintly) orange.
Do you have any ideas on how to fix this? All applestores nearby are closed today, I live in Denmark.
Thank you so much in advance!
Kind regards Emilie

Try the SMC reset again:
https://support.apple.com/en-us/HT201295
Then try a NVRAM reset:
https://support.apple.com/en-us/HT204063
Then try a safe boot:
https://support.apple.com/en-us/HT201262
If no success, then you will have to take it in for service.
Ciao.

NeW Probook 4540s Battery full charge capacity DEcreasing consistantly

hello, i m using hp probook 4540s for one month and after just one month of use my notebook battery full charge capacity only remains 77% some time it shows Even 72-73% .. Why So? i cheked through hp support assistant-hp batery check utility,, Does it comes under warrenty should i go for it.. plz help me out as my laptop is just one month old and it is not good to show such amount of full charge capacity So early.. for ur help i m attaching the screen shot of what i got..

I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can click here for the link.
HP ProBook 4540s Notebook PC Support
TwoPointOh
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Hp Probook 4540s Battery full charge capacity DEcreasing consistantly

hello, i m using hp probook 4540s for one month and after just one month of use my notebook battery full charge capacity only remains 77% some time it shows Even 72-73% .. Why So? i cheked through hp support assistant-hp batery check utility,, Does it comes under warrenty should i go for it.. plz help me out as my laptop is just one month old and it is not good to show such amount of full charge capacity So early.. for ur help i m attaching the screen shot of what i got..

Hi IamMubashir,
I am sorry, but to get your issue more exposure I would suggest posting it in the commercial forums since this is a commercial product. You can do this at HP Enterprise Business Community.
I hope this helps.
I worked on behalf of HP.

A problem with Probook 4540s BIOS!!!

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This question was solved.
View Solution.

The following was taken from here.
Code descriptions
Use the following table to learn about the meaning of a code that your computer may encounter.
Code type Number of Blinks or Beeps Component Being Checked Condition Possible solution(s)
AC power adapter LED
Constantly on
Power adapter
OK. Power is being supplied.
None. The power adapter is likely not the problem.
AC power adapter LED
Constantly off
Power adapter
Power is not being supplied
Try a different power outlet.
Replace power adapter.
AC power adapter LED
Continuous blinking
Power adapter
Insufficient power
Try a different power outlet.
Replace power adapter.
Caps Lock/Num Lock
1
CPU
CPU not functional
Reseat replace CPU.
Service
Caps Lock/Num Lock
2
BIOS
BIOS corruption failure
Restore BIOS from onboard backup (jumpers)
Service
Caps Lock/Num Lock
3
Memory
Memory module error not functional
Reseat memory modules (see next section).
Test memory from UEFI or BIOS.
Replace bad memory modules.
Service
Caps Lock/Num Lock
4
Graphics
Graphics controller not functional
Service
Caps Lock/Num Lock
5
System board
General system board failure
Service
Caps Lock/Num Lock
6
BIOS
BIOS authentication failure
Restore BIOS from onboard backup (jumpers)
Service
Beep
Varies
Varies
Varies
Reseat memory modules (see next section).
Service
For more detail on the exact code, search the Internet for "beep code" and the manufacturer of your BIOS - such as AMI or Award.
The caps lock blinking three times indicates it is related to the RAM.
You can try disconnecting everything including the battery and the AC charger, holding the power button for one minute, and then turning it on.
If that does not help, then you can try removing each RAM module and trying with them one at a time.
Page 60 of this guide details how to remove the RAM should you need it.
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Blackberry Curve 9220 led blinking 4 times

Hi,
i'm ikari from indonesia,
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i've click next, after that my phone is start to reboot again and apploader failed to connect to my device.
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sorry if my word can't to understanding...
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Hi and Welcome to the Community!
Before you proceed to try and reload your OS, I recommend something a bit less destructive...
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Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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HP Probook 4540s Sudden Shutdown Without any Warning

I have a HP Probook 4540s laptop bought in November 2012. It has Core i5-3210M CPU @ 2.50 Ghz chip with 8 gb ram and 500 GB hard disk. Till 2014 it was all OK. But now it has started giving me problems like it shut downs when it is at low battery say just about to reach 10 %. No low battery message just complete shut down(bam, screen goes dark). Now I have done the following steps
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Deep.
Download and run BatteryMon.
http://download.cnet.com/BatteryMon/3000-2094_4-29244.html
After download click on start.
In the upper left hand corner you will see a battery tab click on it to get the details of the battery.
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Hi
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LOVE_DREAM wrote:
Is there any other way to use a graphics card?
Hi,
It already has video chip (card). As mentioned above, no way you can add an external video card to your machine. Actually there is one way which requires the following steps:
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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Laptop charger indicator blinking in orange color after charger plugged into laptop

Hi,
I am using HP Pavilion G6-2313AX model laptop with Windows 7 OS, i've problem in my laptop after charger plugged in my laptop the battery indicator in OS displaying a message like "Plugged in, not charging " and " Indicator near charger pin blinking in orange color", i tried with another hp charger i am getting same message. Its a new laptop i bought 3months before. please help to resolve this issue.

With the battery removed can you start the notebook and boot into Windows?
That is a critical item to know. That lets you know that your power adapter is OK. A flashing charge led can indicate a faulty battery or voltage below that required to power the notebook.
Run the battery test from the UEFI diagnostics.
Press the power button and then immediately tap the Esc key. Choose F2 for Diagnostics. Choose component tests and then battery. Run the short or long test.
The battery is a warranty replaceable item. If it fails the test, Contact Hp to arrange for a warranty replacement.
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

HP PROBOOK 4540S boots on battery but not on multiple a/c adapters.

ac adapter/battery light indicator next to power connector flashes white when ac is plugged in. Laptop seems to work fine on battery alone. Also when in windows after starting up on battery, the battery wont charge.

Hi @rey777,
Welcome to the HP Support Forums!
I understand that your HP ProBook 4540s Notebook PC will not power up on the AC adapter. Your ProBook is a business computer and you will find the best answer to your questions on the Commercial Forums. You can post your questions here at the HP Enterprise Business Community.
In the meantime, here is the HP ProBook 4540s Notebook PC support page, that may have the solution for you.
I hope this information helps.
Take care and have a great day!
I worked on behalf of HP.

Compaq CQ61 won't boot, 2 led blinks.

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This is a phenomenon of these computers.
If you have a computer that won't boot, remove battery, unplug charger. Press powerbutton for at least 20 seconds, insert the power cable, and hold for another 20 seconds. Nothing will seem to happen. Then press power again.
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This has nothing to do with the RTC/NVRAM backup. But it's no reason to not replace it. It costs about 3$ and you can find a 2032 Lithium cell almost everywhere. (3V, 20mm diameter, 3,2mm thick). Located under the harddrive bay cover on the bottom of computer.
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These are not exactly the most energy saving computers. They get hot. I have seen examples of plastic chassie parts melting.

Probook 4540s charging led blinking

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