this laptop works fine except that once it is shutdown, it will not power back up unless the battery and charger have both been disconnected first. then it will automatically power up just like it should. basically the power button will wake it from a sleep but it will not power it up from a shutdown. all power sources have to be detached first in order for it to power up
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I am looking at an A2337 and found this for the order of power rails and what they do. Can this be confirmed before I dive into hunting down power rails that do not exist or are not neccisary?
- PPBUS_G3H (12.6V-12.8V)
- This is the main power rail that supplies power to the entire system. Check this rail first, as it must be present for other power rails to work.
- PP3V42_G3H (3.42V)
- This power rail is derived from PPBUS_G3H and is used to power the SMC (System Management Controller) and other essential circuits. It should be present if PPBUS_G3H is working correctly.
- PPVRTC_G3H (3.3V)
- This
- PPBUS_G3H (12.6V-12.8V)
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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... -
- 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).... -
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... -
Hope someone can give me some suggestions on this because i'm at my wits end with it...
I have an Envy 13-BA1565na here with an Intel Core i7 i7-1165G7 CPU (board is a LA-J475P Rev 1.0) which has an intermittent power button issue. The power button is integrated into the keyboard, and I have ruled out the keyboard, BIOS and battery as being the issue.
Basically, on mains power, the power button works fairly well. The first time you come to it after leving it sitting (either on charge or not on charge), it might take 2 or 3 presses of the button, but then the laptop boots...07-12-2024, 03:03 AM
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