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Search: Posts Made By: wnt2fx
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-19-2021, 01:22 AM
Replies: 2
Views: 314
Posted By wnt2fx
A1706 - no brain after display replacement

A friend replaced the display on that machine and since then it is dead. He can not remember any mistake.

cpu vcore present. no adaptive voltage. stable 1.8V I think. no chime, no mouse light, no...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-19-2021, 01:12 AM
Replies: 0
Views: 183
Posted By wnt2fx
A1707 - sudden reset only on charger under load

This 15" Touchbar runs fine on battery but resets/shuts down on charger just a few moments after beeing under load. Usually reboots on his own after a few seconds. No panic/crash reports.

Anybody...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-19-2021, 01:00 AM
Replies: 4
Views: 717
Posted By wnt2fx
Re: 820-01700 5v 0.25 a

ah I was too fast. You wre for sure speaking about the nand and not the t2. ssd chips must come from donor board because of eSPI ?

I mean this board should be saved anyways but my first concern is...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-10-2021, 12:27 AM
Replies: 4
Views: 717
Posted By wnt2fx
Re: 820-01700 5v 0.25 a

Hey piernov. Thanks for beeing here ! Generally: t2 must come from identical Board ?

Now, I don’t think that the t2 is dead:

Today I picked up the housing with battery and after I installed the...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-08-2021, 11:29 AM
Replies: 4
Views: 717
Posted By wnt2fx
Re: 820-01700 5v 0.25 a

Ultrasonic cleaning --> still [email protected] on three ports, still [email protected] and so no PPDCIN_XA_G3H_F output on primary port.

The power sequence says "H9M LOAD SECURE ROM, SMC BATTERY TRAP" right...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-07-2021, 11:39 PM
Replies: 4
Views: 717
Posted By wnt2fx
820-01700 5v 0.25 a

Hello everybody, I am a little desperate understanding this t2 board. Somebody worked on it before ( u3100) I guess reflowed. Liquid damage hit mainly the right wing but also u7800 area. L7811 looked...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-22-2021, 07:47 AM
Replies: 4
Views: 397
Posted By wnt2fx
Re: MacBook 12" 820-00244 famous SSD issue

heating does not really help it. the funny thing is that the person that gave tha 12ie to me has all data but wants to use the machine again despite my explanations that the problem will most...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-22-2021, 07:45 AM
Replies: 4
Views: 397
Posted By wnt2fx
Re: MacBook 12" 820-00244 famous SSD issue

it might be better with leaded solder but one day in 1 - 4 years the problem may return. It is just a poor thermal design.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-20-2021, 09:07 PM
Replies: 1
Views: 275
Posted By wnt2fx
MBP15.2012 820-3330 not finishing os boot

I have this nice 2012 MacBook Pro from a friend here since a while and I never fixed it. Deactivated dGPU is not an option for him as he relies on an external display.

It either hangs on late boot...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-20-2021, 08:59 PM
Replies: 4
Views: 397
Posted By wnt2fx
MacBook 12" 820-00244 famous SSD issue

I have an 2016 12" MacBook here which does not recognise the ssd most of the boots and if does once upon a time it usually does not complete the boot.

I wanted to benefit from your experience:
...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-20-2021, 08:42 PM
Replies: 4
Views: 658
Posted By wnt2fx
Re: Spectre x360 dead - Dax31mb1aa0 rev a

can me marked as solved



with the battery attached it also cycles but after 5 times it charges and posts ! I was just too unpatient :) thanks all ! In the end it had been just shorted diodes...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-06-2021, 07:19 AM
Replies: 4
Views: 658
Posted By wnt2fx
Re: Spectre x360 dead - Dax31mb1aa0 rev a

Thank you mon2. Now I have the boardview. I will have time next week to go over that board again.

I never checked voltages on the big coils but their resistance to gnd seemed reasonable.

What I...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-05-2021, 05:17 PM
Replies: 4
Views: 658
Posted By wnt2fx
Spectre x360 dead - Dax31mb1aa0 rev a

I've got an 13-ac023dx usb c logicboard Dax31mb1aa0 rev a ( Quanta X31 kbl-u 2016.08.05 )

clean board. both tvs diodes ( D36 & D43 ) were shorted. Removed

no other shorts on first glance. I...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-15-2021, 11:10 PM
Replies: 2
Views: 482
Posted By wnt2fx
Re: MacBookPro 15" 2015 - Screen off / GMUX Issue ?

yeah, I think so too. 00426 or a alike. Do not want to give up on that one yet. I believe it is something in the muxing circuitry. But can we really rule out the lcd ? It would have further...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-14-2021, 11:01 PM
Replies: 2
Views: 482
Posted By wnt2fx
MacBookPro 15" 2015 - Screen off / GMUX Issue ?

Hello everybody, i could have some help.

I will note down the logic board number later if needed. Am away of the scope now and forgot it. It was the one schematics were never released for and so...
Forum: Announcements & Related News 05-13-2021, 08:04 PM
Replies: 30,597
Views: 3,436,523
Posted By wnt2fx
Re: New Members - please post your introductions here

Hello everybody, I love bringing electronic devices back to life. While I gained quite some experience repairing several dozens of logic boards (mainly macbooks and iphones) successfully and also...
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