0:42 saved me, I checked adapter and it wasnt working and just yellow and white lights blinking. now everything fixed. Thanks a lot.

Thanks, it was really helpful. At least I know where the fault is from

@platinumphonesandcomputers

2 жыл бұрын

You are welcome

Well done 👍

Most cowboy repair I've ever seen, amazed it worked, the soldering iron and air blower are way too big for smd and measuring a live motherboard, my man likes risks

@platinumphonesandcomputers

Жыл бұрын

hahaha thanks

Спасибо, помогли решить головоломку.

Parabéns!!

@platinumphonesandcomputers

2 жыл бұрын

obrigada

Hi, friend! I have the 850 g4 laptop, but there is a problem, it won’t turn on. I measured it on the incoming mosfet. 19 volts come to the D contact, and only 1.6 volts to G and S. What could be the problem?

My HP Elitbook 840 laptop is sometimes charging but sometimes not charging at all. Moreover its not running without battery. How can I solve the issue?

Thank you very much Platinum Phones & Computer, Pls i need your help for explanation, cause as a beginner, is not really profitable to me without explanation

@platinumphonesandcomputers

2 жыл бұрын

Thank you, We can organize for online classes on Zoom, contact me

Please I have the same PC with this same prob

Can you please share hp 840 G1 continues blinking light once, when you plugged in adapter and it doesn’t turn on

@platinumphonesandcomputers

2 жыл бұрын

continues blinks depends on which led is exactly blinking, but probably adapter without middle pin does A fault ram however this include caps lock and num 3 times And a fault bios firmware

Do you do repairs?

Laptop was working fine but not charging. Did this procedure and now it won't power on.

My laptop hp Elite book g1 840 buttom side heating and "power led on" . heating only and not power on

@platinumphonesandcomputers

2 жыл бұрын

You can follow this video to fix it. kzread.info/dash/bejne/noxqm9d_d6uqmpM.html

hey so i didnt have 5v at the LDO but i did have the 3.2v on the LDO is mine the same problem that needs to be fixed

@platinumphonesandcomputers

2 жыл бұрын

Try checking the condition of the 5V LDO regulator, or disconnect the external 5v LDO circuit and see if 5V comes up

Please I have HP 1040 g2 is the same problem could it be the same solution?

@platinumphonesandcomputers

2 жыл бұрын

probably, follow the video and check for those volts rails

How did you get the replacement chip?

@platinumphonesandcomputers

Жыл бұрын

I salvaged it from another donor board

hi my hp folio 1040 works on charger but it dosen't with the battery even if replaced. any ideas?

@platinumphonesandcomputers

10 ай бұрын

Its most times due to the MOSFETs that allow battery voltage to the main rail not opening. You may need to check there it can be fault or short

what is the name of your multimeter and where to buy one?

@platinumphonesandcomputers

Жыл бұрын

Its called Chengfa 98A+, this specific brand is rare these days but if you search for auto range multimeters you can find some like this

Hi can you please confirm the name of the part you called (voltage chip) and where I can get one please?

@platinumphonesandcomputers

2 жыл бұрын

Hey, that chip is TPS51225 made by Texas instruments, you can get it from other 4th Gen Motherboards' on some online websites.

@melaniemariner9703

2 жыл бұрын

@@platinumphonesandcomputers hi thanks for your reply when I test it as it is it shows around 3v or just over on some of the terminals am I too assume it's suppose to be 5v or 19 consistently?

@platinumphonesandcomputers

2 жыл бұрын

Now the processor of diagnosing that chip is a bit complex, it has 4 voltage regulators inside, each giving out two 3.3Volts and two 5Volts. 19 or battery voltage should be present on Vin and power MOSFETs, however, there are also other enable and reference volts that should be present to enable the chip to make those volts.

where can we find your services here in Kenya Nairobi

@platinumphonesandcomputers

Жыл бұрын

In Uganda

Bhai Mera bhi repair kr doge

आप कहां के हैं मेरा भी लैपटॉप hp Elitebook 840 है जो चालू करने पर दो बार लाईट जलाकर बंद हो जाता है दिखाए तो बोले पावर बतम लोक टूट गया है जो नहीं बनता है

What is name of this part ?

@platinumphonesandcomputers

2 жыл бұрын

can you quote the time stamp of the exact part you would like to know

amr same modeler laptoper same problem, apni solve kore dite parben??

@platinumphonesandcomputers

2 жыл бұрын

can you write in english

@exceptionalfahim2709

2 жыл бұрын

Vai thik koraicen?

Hi there, where are you located?

@platinumphonesandcomputers

Жыл бұрын

Uganda

Where are you from bro?

@platinumphonesandcomputers

2 жыл бұрын

From Uganda

@exceptionalfahim2709

2 жыл бұрын

@@platinumphonesandcomputers bro i face this problem from two days. Naw what can i do?

@platinumphonesandcomputers

2 жыл бұрын

@@exceptionalfahim2709 you can follow the video and fix it

@exceptionalfahim2709

2 жыл бұрын

@@platinumphonesandcomputers bro, what is the name of this problem? I will repeare it from any it center.

Vai apner phone number diyen, plz

Bro help mi your contact m in uganda