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Search: Posts Made By: piernov
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 04:22 AM
Replies: 5
Views: 55
Posted By piernov
Re: Lenovo g505 no power

Measurements are wrong, both gate are tied together, they cannot have a different voltage.
It'd rather be first MOSFET shorted, but cannot tell without exact measurements.
Forum: Abit - Asus - Aopen Yesterday, 03:57 AM
Replies: 2
Views: 60
Posted By piernov
Re: ASus A7N8X-LA - Powers on, but no boot (solved)

Repasting was just a coincidence I think. Or there may be a bad contact in the CPU socket and taking off/putting back on the heatsink did something.
No sign of bulging capacitors? (they could still...
Forum: Schematic Requests ONLY! 11-14-2019, 09:46 AM
Replies: 102
Views: 63,720
Posted By piernov
Re: need board view for Apple A1278

This is 820-2936 schematics and 820-2915 boardview.
820-2565 is a DC-in board.
Forum: BIOS Requests ONLY! 11-13-2019, 04:09 AM
Replies: 3
Views: 84
Posted By piernov
Forum: BIOS Requests ONLY! 11-12-2019, 03:36 PM
Replies: 9
Views: 76
Posted By piernov
Re: Toshiba Satellite L10w-B-102 BIOS

Ah my bad, just looked at @SMDFlea file, it shows up the same in UEFITool. Maybe a bug on my end
Looking with hex editor, the BIOS region is mostly the same (except that @SMDFlea file doesn't have...
Forum: BIOS Requests ONLY! 11-12-2019, 03:04 PM
Replies: 9
Views: 76
Posted By piernov
Re: Toshiba Satellite L10w-B-102 BIOS

Turning on/off/on/off/on can be a CMOS reset behaviour, after unplugging all sources of power. Some boards don't do it at all, some do it once, or more. But it should do keep the same behaviour each...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-12-2019, 02:25 PM
Replies: 10
Views: 121
Posted By piernov
Re: Asus q501l charges, turns on ac only (spilled tea incident)

Sounds like a dead battery.
On the battery connector, outermost pins are usually + and -.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-12-2019, 12:31 PM
Replies: 10
Views: 121
Posted By piernov
Re: Asus q501l charges, turns on ac only (spilled tea incident)

What's the issue? What's the motherboard model number?
Forum: Schematic Requests ONLY! 11-11-2019, 12:03 PM
Replies: 19
Views: 870
Posted By piernov
Re: Boardviews of some phones/tablets

OpenBoardView cannot read this format.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-10-2019, 03:25 PM
Replies: 5
Views: 117
Posted By piernov
Re: MacBook Pro 820-00239 not turning on

U7900 missing can definitely explain why you're not getting PP1V2_S3… Maybe the reason why you're not getting PP1V8_S3 either.

Athough if U7900 was removed, maybe it means there was an issue with...
Forum: Abit - Asus - Aopen 11-10-2019, 03:09 PM
Replies: 4
Views: 80
Posted By piernov
Re: Asus P8Z68-V Pro cpu fan spins on sleep or shutdown

Tried with another PSU? Clear CMOS?
Forum: Schematic Requests ONLY! 11-10-2019, 12:31 PM
Replies: 19
Views: 870
Posted By piernov
Forum: BIOS Requests ONLY! 11-10-2019, 07:46 AM
Replies: 7
Views: 95
Posted By piernov
Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Serial number has to be edited and Fsys checksum corrected accordingly.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-10-2019, 04:46 AM
Replies: 5
Views: 117
Posted By piernov
Re: MacBook Pro 820-00239 not turning on

It's unusual to have all S4 rails and no S3 rails, double check it's indeed what's happening, and check if you get any S0 rail as well. What's the current consumption of the machine (without...
Forum: BIOS Requests ONLY! 11-10-2019, 04:43 AM
Replies: 9
Views: 76
Posted By piernov
Re: Toshiba Satellite L10w-B-102 BIOS

TXE is like ME region but for Intel Atom lineup.
Post the original dump and get the motherboard model number so we can see what's going on.
Forum: BIOS Requests ONLY! 11-08-2019, 02:25 PM
Replies: 7
Views: 95
Posted By piernov
Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Better post your original dump and tell what the issue is with it.
Forum: Schematic Requests ONLY! 11-08-2019, 03:25 AM
Replies: 3
Views: 67
Posted By piernov
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-08-2019, 03:15 AM
Replies: 14
Views: 152
Posted By piernov
Re: i have cq56-240st. this can uma?

Please attach pictures to your post directly.
As expected, there is no dGPU…
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-08-2019, 03:14 AM
Replies: 1
Views: 51
Posted By piernov
Re: MacBook Air 1466 820-3437-B missing ALL_SYS_PWRGD

If ALL_SYS_PWRGD is missing, usually it means another S0 rail is missing as well. (excluding CPU VCore which requires ALL_SYS_PWRGD to turn on)
Check the list of power rails again.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-07-2019, 07:57 AM
Replies: 14
Views: 152
Posted By piernov
Re: i have cq56-240st. this can uma?

Most likely no dGPU on this. Issue is dead northbridge AMD RS880M 216-0752001.
Forum: Schematic Requests ONLY! 11-06-2019, 11:22 AM
Replies: 7
Views: 137
Posted By piernov
Re: Toshiba Satellite L655 6050A2332301-MB-A02 schematics needed

Sorry just realized I uploaded the wrong file again… was supposed to be this one.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-05-2019, 04:12 PM
Replies: 11
Views: 162
Posted By piernov
Re: Weird Issue Lenovo U410 DA0LZ8MB8E0 REV E.

Confirmed it's not an HDD/ODD problem?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-05-2019, 03:20 AM
Replies: 7
Views: 100
Posted By piernov
Re: 2012 13"Mbp 820-3115 sudden death

You have to confirm there is actually a short to ground before injecting voltage. Measuring resistance mode to ground on that rail first.
It can be 100 other things causing your problem.
First is...
Forum: Schematic Requests ONLY! 11-04-2019, 06:49 AM
Replies: 7
Views: 137
Posted By piernov
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 11-04-2019, 06:48 AM
Replies: 6
Views: 115
Posted By piernov
Re: Hp spectre cpu get extremely hot

I'm wondering if someone tried to reflow it…
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