Please and thank you

Good afternoon, the laptop does not turn on after updating the bios. Please help with bios recovery. Me Analalizer shows an error. Laptop Acer Predator Helios300 PH315-54-760s. Platform LA-L191P REV:1A . thank you...

Hi
black screen, no boot after disable secure boot.
need a working bios and a working ec

Acer predator helios 300
Model N17C3
SNID : 80601898234
PH317-51-73XK
Motherboard C5MMH / C7MMH LA-E911P rev 1B

BIOS/EC dump :

[ATTACH]312974[/ATTACH]

the windows license has been deleted from the bios bin.

Thanks.Hi
black screen, no boot after disable secure boot.
need a working bios and a working ec

Acer predator helios 300
Model N17C3
SNID : 80601898234...

Acer predator helios 300
Model N17C1
SNID : 74705648334
G3-572-76QG
Motherboard C5MMH / C7MMH LA-E911P rev 1B
S/N : NHQ2CEC0027470DCA33400
DATE :2017/11/24
​

good day, I need to create a bios bin and ec bin with the original acer site, I don't have backups, the chips are defective and the pch chip was replaced

ij nt QFN20 mayve wrong now according to this one i found now. can u confirm this is the right shematic for my board as the pin and QFN20 is different to SY8288CRAC_QFN20_3X3 , so the correct one i need is [B]RT8207PGQW _W QFN20_3X3[/B] ?

the chip marking is
JW5068C
2TjA07Sij nt QFN20 mayve wrong now according to this one i found now. can u confirm this is the right shematic for my board as the pin and QFN20 is different to SY8288CRAC_QFN20_3X3 , so the correct one i need is [B]RT8207PGQW _W QFN20_3X3[/B] ?

the chip marking is
JW5068C
2TjA07Sij...

Acer Predator Helios 300 n20c11 ph317-55-92g8
i9 rtx 3070
can anybody kindly share the schematics?
i downloaded a few pdf from here not sure if it was the correct ones, i need the stepdown converter, SY8288CRAC_QFN20_3X3.
i ordered a few from Ali Express and a qfn20 adapter, it does not fit onto the adapter board well.
adapter board I used
0.5mm
.04mm
the chip 1 side or some legs get soldered with the head, and some legs don't make contact as I tested it, maybe because the board size is incorrect or the chip itself is custom and not the right size....

Mainboard ; FH52M LA-J891P REV:1 A

Hi everyone happy new year to all

I try to fix this motherboard no power missing 19v
the first DCIN PQB11 mosfet receiveide 19v in drain.
the test i have done :
Mosfet PQB11 and PQB12 check and change still have no power
Charging IC PUB1 check step:
-VCC pin 28 = 19V
-ACDET pin 6 =2,62V
-REGN pin 24 = 6V
-CMSRC pin 3 = 0V
At this step i replaced IC but still problem no voltage in gate on 2 dcin mosfet
What i missing?

the schematic in below
Thanks
I use...

Hi,i have an Acer Predator Helios 300 Laptop and has faulty BIOS chip,cannot be saved the bios from it.Can anyone give me a bin for the laptop?

Predator Helios 300 Series
Model No. N17C3
PH317-51-75BU
S/N: NHQ29EF021810099AD3400
SNID: 81003934134
Motherboard: C5PRH LA-E921P Rev 1B / 2017-03-31

Thanks in advance,and Happy New Year!...

Hi! I have been troubleshooting this PC but at this point I am stopped.

MB: DH53F LA-F991P
Fail detected: Won't power on and NOT charging
Consumption analysis: At powering ON, consumption increases to 1-2mA, later it remains at 0mA.

Shorts check: No present
25Q64 memory with 3.3V: OK, when power on pushed
25Q64 memory read: not reading
ISL88739A: DC arrives OK, but not output at +12.6V_BATT with battery connected

Checking boot sequence:
[ATTACH=JSON]{"alt":"Click image for larger version Name:\timagen.png...

Hi there all, 1st post here. I wasn't aware there were guys out there doing this for people! (how, well I haven't a clue lol but 😎👍 badass!), So when I found y'all, I was happy, but not too happy quite yet - although my issue seems to be less severe than many I've seen here who have been happily helped, so there's that.

I'm a software dev of over 20 years and just recently have gotten into the hardware side of things plus other electronics like Rpi and Arduino. Started off a vid game hacker yada yada, same story. Lol.

[B][U]Now, the BIG OL' issue ruining me little...

Hello:

The GPU is recognised in windows but with an error, up on testing I found +1.35VSDGPU is missing for the Video Ram.

Coils (PLW1 & PLW2) read 78ohms on the video ram side when I lifted one side to isolate the video ram. I believe this is normal, let me know please?

Up on powering up no attempt is seen of any voltage on the coils.

The power supply (RT8816B) is receiving 2.6v on the enable pin.

There is 19v on the switching Mosfets (PQW1 & PQW2) via PLW3.

Power good output from RT8816GB remains at...

I have this laptop: charging light is on when connected to the charger, when I push the power button you can hear the fans spinning for a three seconds, the keyboard backlight it turning on, the caps lock key is unresponsive, no image on screen. Only a couple of times it booted with image for a few seconds and then reboots to black screen. When it is frozen with black screen and lit keyboard, I can keep pressed the power button to shut it completely.
I downloaded schematics in this forum ( [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/93861-predator-helios-300-la-k862p-schematic[/url]...

the laptop came as no power as one rail was short (pom2 was short and as result the dc in fet was gone pob11)

that is fixed and now EC - PLT_RST# present so laptop should work

did try multiple bios and EC bios but not working

any idea please

thank you

So that is 1.2v power supply according to the schematic. Un-solder jumper PJM2 and then see which side of that jumper the short is on. It feeds the Ram and CPU. Remove the ram if not removed to see if that makes a difference. Otherwise if it is on CPU side and not the ram then could be dead CPU.

But I am not sure what resistance that cpu should be, Can be pretty low.

EDIT - I just checked an Acer Predator 300 Helios ( [B]LA-J891P[/B]) that I am working on that still boots but with secondary GPU issue and the CPU measures 6 ohms on one coil and 3 ohms on the others....

Hello Everyone,

1 am Dad from Melbourne, Austral1a.
Am us1ng 2014 Razer Blade Pro that has keyboard 1ssues.
Bet you can't guess wh1ch key doesnt work...
(plugs 1n USB keyboard)
Started computing in the 80's first on the old audio tape Amstrad. (Ghosts N Goblins would take 40 mins to load - 40 mins of screeching)
Have this old Razer i7, 860m 2gb, have managed to get it to run.

-Just got an Acer Predator Helios 300 i7, 1050ti 4gb that I gave to an amateur repairist, not powering on.
He brought it back to me having just found a blown mosfet...

It's for an Acer Predator Helios 300 Model#: PH315-53-781R. Are you asking about it if the PSU says its made by Delta?

Acer Predator Helios 300 PH315-51 PH317-52 Gaming Laptop Schematic...

Acer Predator Helios 300 Gaming Laptop PH317-54 6050A3087503 Schematic & Board View...

Looking for BIOS BIN for this unit. Tried extracting from Acer website but not skilled enough to do so. Many Thanks!

good day can please edit my bin file.,
ACER PREDATOR HELIOS 300
PH315-53-527E
S/N : NHQAUSP0021040D9963400
SNID: 10405570234

thanks in advance...

If you want help post your backups, read this first [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/1872072-acer-predator-helios-300-ph315-55?p=1872074#post1872074[/url]https://If you want help post your b...t1872074[/url]

Re: Acer Predator Helios 300 PH315-53-71QX



hello Sir can i get Acer Predator Helios 300 PH315-55-70ZV bios bin file too....

This specification for the Acer Predator PH317-56-75UZ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the PH317-56-75UZ boardview and PH317-56-75UZ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...

This specification for the Acer Predator PH317-56-78JZ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the PH317-56-78JZ boardview and PH317-56-78JZ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...

This specification for the Acer Predator PH317-56 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the PH317-56 boardview and PH317-56 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Acer...