This seems to be a common issue. Reflashed bios, same issue. Did a light reflow of gpu, same issue. Reballed.....same issue. Has anyone found a solution to this?
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Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer
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Re: HP G62 Power Button LED Flickers
Hi kbc Rsmrst3.3 ?S5 voltage
Techman1025 -
Re: HP G62 Power Button LED Flickers
I'll have a look. ThanksFull-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: HP G62 Power Button LED Flickers
Look in the mainboard i think is ENE.
You need schematic diagramComment
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Re: HP G62 Power Button LED Flickers
why reballing gpu when gpu have no touch to this problem?Comment
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Re: HP G62 Power Button LED Flickers
these hp is the same as other laptops. signal from SW goes to SIO chipComment
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Re: HP G62 Power Button LED Flickers
did u try to change the sw bt boardComment
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Re: HP G62 Power Button LED Flickers
yes, change it. because i got the same issue and after changing the power switch board, i fixed it. so tryComment
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- forum postHP 14-bf054sa
LA-F301P Rev 1.0
This laptop came in with a number of minor issues (Screen with black bar and battery that needs replacing). The laptop also had issues relating to salt (water/air) corrosion, having been used near the ocean.
The HDMI port, 2x usb ports and the SD card reader all needed replacement as they had been affected by salty air and only work intermittently. The HDMI port, 2x usb ports and the SD card reader have been replaced and have been checked for (obvious) shorts.
The laptop now fails to turn on (normally).... -
Dell laptop (E7440, uses the notorious CD3301B power controller + MEC5075 EC + BQ24715 charger IC)
Symptoms:- Laptop works normally on a pre-charged battery.
- Battery does not charge when adapter is connected.
- Without battery:
- Laptop powers on from DC adapter, passes CPU/RAM init checks, then cuts DC power abruptly.(seems to shutdown one of the mosfets in the charger path). Then the loop continues indefinitely
- Speakers “pop” when power cut occurs indicating harsh sutdown.
- If RAM is removed, the system shows RAM missing blink error code indefinitely without cutting DC power
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Hello,
With the power button connected it either boot loops with the apple logo or no display but the charging meter shows it looping on charging every few seconds.
No corrosion any where!
Tried a replacement power button off ebay and the same.
Very occasionally it will work with the power button connected!
Same results with or without the battery.
Can it be a fault with the Audio board or the mainboard?
The touch Id assembly connects through the Audio board first then to the Mainboard.
Flex... -
Hi.
Long shot but does anyone have a schematic & boardview for the audio board+power button on a Macbook A2179?
There is a shorted cap on mine and I need to know if I can safely remove it or whether I need to replace it and with what capacitor.
Many thanks. ...08-21-2025, 02:38 PM -
Had another issue with turning the machine on (1 in 5 it will turn on) so had to strip it down again thinking the power on button is damaged but it is in good condition, then had a look at the motherboard button and it looks like a part of it has snapped off see attached pics.
Can anyone recommend a replacement for the motherboard, it has 8 pins and would prefer a blue led if possible.
The closest I have found is part number: PB6156RSL-4-102 (Blue led) PB6156RSL-3-102 (green) but agin struggling to find that part in the uk...
Comment