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Maybe its looking for battery full charge capacity of more than 7000mAh for it to enable full speed
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Re: A1286 820-2915-B CPU throttling
Yup I have genuine original battery which comes with laptop. I bought this laptop for cheap from a guy who stored it after the screen went black. Turns out that it has been repaired before and I guess he doesnt want to repair it anymore probably because of high repair cost. The GPU was shorted before, it got too hot. So I removed the power coils for GPU core. that solve the problem which prevented the laptop to turn on. Soon (maybe a week later) it starts to throtle after using the cpu for high demanding app for long periods....
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Re: A1286 820-2915-B CPU throttling
sorry i dont get what you mean. i didnt put anything but just thermal pad for electrical insulation for the gpu heatsink, if thats what you meant....
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Re: A1286 820-2915-B CPU throttling
I solved mine. It turns out that the discrete GPU even though it has been disabled through the efi bios and resistor mod, can give out many other problems. This includes cpu throtling. In the end i simply removed the GPU chip and my problems is solved. It passed ASD check no errors found so the GPU removal was my last option.
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Re: A1286 820-2915-B CPU throttling
Just have this problem today. throtled cpu. did you fix yours?...
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Re: KB9028 Programming
Are you sure the pins on keyboard connector are correct. Make sure to trace the pins from the chip directly to the keyboard with a multimeter. And make sure it is grounded properly. I dont think the board will turn on if the signal is properly grounded...
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Re: HP Envy 13-aq series KBC EC pinout
Thanks for info. yes KB9028G for BGA package...
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Re: HP Envy 13-aq series KBC EC pinout
I already read that post but its different. It should be easier if the chip package is larger as in KB9028Q type, but mine is the smaller package type (KB9028G).
Due to lack of schematics and datasheets, I removed the chip which is the KB9028G package and traced the lines manually, and to my surprise none of the ISP lines goes to the keyboard socket. There is another connector which I assume is for ISP programming but the socket is not soldered, and the lines for programming the KB9028G chip goes to this socket....
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Re: HP Envy 13-aq series KBC EC pinout
2019G1 Moorea 13 intel
18744-1...
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Re: KB9028 RT9809F Programming
Thanks for the video. I actually already done this with a ch341a programmer and KB9012 chip. But now I am trying with the same programmer with a KB9028 chip. I cant find schematic for the board yet so I might end up removing the chip and manually trace the lines to the keyboard connector.
its actually kb9028G chip so that explains why I need to remove the chip....
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HP Envy 13-aq series KBC EC pinout
I want to make a backup firmware from the board KB9028Q EC but I dont have the pinouts for the keyboard connector. Does anyone knows the keyboard connector pinouts for this laptop model
HP Envy 13-aq series
other markings: 2019g1 Moorea 13 intel
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Re: KB9028 Programming
has anyone tried kb9028 with a ch341a programmer?
I noticed that neoprogrammer has support for KB902X. Will try this later.
Having problem figuring the connections for this laptop model HP Envy 13-aq series. I dont have the schematics. Hopefully there are some identical models with schematics out there.Last edited by gurangax; 09-29-2022, 06:41 PM.
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HP Envy 13-aq Moorea 13 intel 18744-1 schematic request
Hi all
I am looking for schematic for a laptop that I am working on model HP Envy 13-aq series. Other board marking is 2019G1 Moorea 13 intel 18744-1
Thanks
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