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tccyo22
Senior Member
Last Activity: 03-15-2024, 06:57 AM
Joined: 10-29-2019
Location: London
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  • tccyo22
    replied to HP Pavilion 14-ce3511sa G7AL-2G DAG7ALMB8C0 REV: C
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Thanks for the information you guys. This actually helped me alot. Especially the fact when it comes to the 5v and 3v rails on newer boards not being present on standby.

    I had a full post ready about how my charging IC was an ISL88379B and couldn't find the datasheet for pins but had a diagram and I had my 19v present and the main DCin with 19v and 25v boosted gate etc.

    However in the end it all came back to my visual inspection being bad. The RAM slot on this model we've had loose pins that weren't soldered properly before but this was not the case this time. Upon getting...
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  • tccyo22
    started a topic HP Pavilion 14-ce3511sa G7AL-2G DAG7ALMB8C0 REV: C
    in Troubleshooting Laptops, Tablets, and Mobile Devices

    HP Pavilion 14-ce3511sa G7AL-2G DAG7ALMB8C0 REV: C

    Hey there, I've got a HP laptop that is not powering on however the charger light is white and present however the 3v and 5v rails are not present as both IC's are missing their S5_ON enable signal. I was looking at a similar schematic and I see it comes from the IT5570E-128 chip (the one in the schematic is an IT8987 but I assume pin layout is similar enough?)

    Some voltages I've measured as I'm not entirely sure what allows this chip to enable the S5_ON signal but VCC is at least missing.

    VCC - 0v
    3VPCU - 3.351v
    V_ECACC - 3.351v
    3V_VSTBY - 3.351v...
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  • tccyo22
    replied to asus Zenbook Flip 13 UX363 bios backup
    in BIOS Requests ONLY!
    This works, thank you so much....
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  • tccyo22
    replied to asus Zenbook Flip 13 UX363 bios backup
    in BIOS Requests ONLY!
    I have a strange issue with a UX363EA version of this laptop. On the original BIOS I get 2 blinks of a white light on the battery indicator over and over and it won't turn on. Did an ME clean but same result. However I downloaded the BIOS from this thread and it boots to BIOS however it cannot detect any SSD's. I'm confused at what is going on with this and I've included the original BIOS if anyone has any hints or suggestions.

    S/N: L9N0CX08720439C
    Board: UX363EA Rev 2.0...
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    Last edited by tccyo22; 01-05-2024, 06:42 AM.

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  • tccyo22
    replied to I need the HP zbook 17 g5 DUMP BIOS, thank you.
    in BIOS Requests ONLY!
    Re: I need the HP zbook 17 g5 DUMP BIOS, thank you.

    Ok it's stuck on the BIOS screen again and no further, can get "Entering Setup..." hitting F10 but it never gets further than that.

    I think it may have restored the previous one from the EC? Is this a thing with Sure Start models?

    EDIT: Little lookup on HP's website it says it keeps a copy in the HP Endpoint Security Controller which I think has restored some of the bad parts, is there anyway I can update this controller to prevent this data mismatch?
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    Last edited by tccyo22; 09-20-2023, 04:18 AM.

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  • tccyo22
    replied to I need the HP zbook 17 g5 DUMP BIOS, thank you.
    in BIOS Requests ONLY!
    Re: HP Zbook 17 G5 BIOS ME Clean



    Thank you!...
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  • tccyo22
    replied to I need the HP zbook 17 g5 DUMP BIOS, thank you.
    in BIOS Requests ONLY!
    Re: HP Zbook 17 G5 BIOS ME Clean



    ah apologies

    The serial number is 5CD9243G66...
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  • tccyo22
    replied to I need the HP zbook 17 g5 DUMP BIOS, thank you.
    in BIOS Requests ONLY!
    HP Zbook 17 G5 BIOS ME Clean

    Has anyone got the firmware version 12.0.93.2331_COR_H_BA_PRD_EXTR-Y

    I was going to clean the ME myself but I can't seem to find this version. I only have to 12.0.92.2145.

    I've included my BIOS dump as well....
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  • tccyo22
    replied to List of pin compatible Laptop ICs
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Re: List of pin compatible Laptop ICs

    I have a faulty SlimPort ANX7447 I need to replace however I only have a SlimPort ANX3429. I cannot find datasheets for these 2 chips but I'm wondering if they're compatible? Same physical layout but I don't know if the pinout is the same
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  • tccyo22
    replied to Xbox One Original missing 12v enable signal
    in Troubleshooting Game Consoles & Other Weird Devices
    Re: Xbox One Original missing 12v enable signal

    The mosfets around the CPU were the first thing I checked and the diode readings all read the same as a working board so I don't think injecting voltage is going to reveal anything.

    I think I might try replacing either U9F3 or U9C2 (or both) and see if that helps. I don't have a schematic or boardview for this specific board so I'm not sure where to find the PWRGOOD signals to check
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  • tccyo22
    replied to Xbox One Original missing 12v enable signal
    in Troubleshooting Game Consoles & Other Weird Devices
    Re: Xbox One Original missing 12v enable signal

    Update on this, it's not a dead SMC, if i hit the power button enough times I get a spike of 12v on the 12v rail but only for about half a second before it falls back to about 0.6v/0.5v and drains down for a second or 2 before dropping to ~200-300mV. I'm trying to figure out why it gets brought back down. With the speaker plugged in I get the power on sound and sometimes tapping away fast enough also the power down, but most times just the power on sound.

    If anyone can share insight on how the 12v enable signal functions,...
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    Last edited by tccyo22; 08-15-2023, 08:52 AM.

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  • tccyo22
    started a topic Xbox One Original missing 12v enable signal
    in Troubleshooting Game Consoles & Other Weird Devices

    Xbox One Original missing 12v enable signal

    Hi there, I have an Xbox One original in which I have all the 1.8v, 3.3v and 5.0v standby power rails present, however my 12v rail is not turning on and the enable signal PSU_V12P0_EN from the SMC to turn the power supply on is missing. There is high resistance on this line so it's not shorted directly to ground which leaves me with not many options.

    Was looking at a schematic and see the enable is created by the SMC. I have 3.3v on SMC_RST_N_IN but I'm a little stuck on where to look next. Is it likely that the SMC has gone bad or am I missing something else (it's my first time with...
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    Last edited by tccyo22; 08-14-2023, 06:16 AM.
  • tccyo22
    replied to Xbox One S Identify component
    in Troubleshooting Game Consoles & Other Weird Devices
    Re: Xbox One S Identify component


    Thanks! 1uF it was and the console boots perfectly once again....
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  • tccyo22
    started a topic Xbox One S Identify component
    in Troubleshooting Game Consoles & Other Weird Devices

    Xbox One S Identify component

    I have an Xbox One S that beeps to turn on but immediately turns off, I have all the power rails present but on visual inspection I found this broken cap behind the Ethernet port.

    Unfortunately I do not have a donor board at hand. Can anyone help me identify the value of this component? C4B6 - Would highly appreciate it....
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  • tccyo22
    started a topic MSI MPG B550 Gaming Carbon Wifi
    in BIOS & Schematic Requests!

    MSI MPG B550 Gaming Carbon Wifi

    Looking for someone who would be kind enough to share a known working BIOS dump from this motherboard model. Currently have one and 90% of the BIOS is empty data
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  • tccyo22
    replied to Sandisk Cruzer Titanium USB
    in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
    Re: Sandisk Cruzer Titanium USB



    Sorry it took a while, but here is the measurements I got so far.

    Voltages taken with drive plugged in, everything else completely unplugged.

    Voltages in red circle. The ones I got 0v the other side was definitely ground
    Diode readings in red boxes.
    Resistances in white boxes....
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    Last edited by tccyo22; 05-20-2023, 06:54 AM. Reason: forgot to actually hit the upload button for the image

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  • tccyo22
    replied to Sandisk Cruzer Titanium USB
    in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
    Re: Sandisk Cruzer Titanium USB



    D+ is 3.89M
    D- is 3.25M
    I believe the clock is at 50Hz.

    I've also just quickly moved up the resistor so it's soldered on 1 end only, now it reads 215ohms. I move it back, it retains this resistance until plugged in then it's back to random values in the k ohms again....
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  • tccyo22
    replied to Sandisk Cruzer Titanium USB
    in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
    Re: Sandisk Cruzer Titanium USB



    The other side is the LED, NAND flash and 1 cap. The LED does light up when I probe it so I know that the LED is fine.



    All caps read in k/M ohms, there's absolutely no signs of heating at all when it's plugged in. The 5v is stable from the connector all the way up to that resistor with the funny readings, but at the same time that 2.5v is fairly stable too so I really don't know what to make of this...
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    Last edited by tccyo22; 05-15-2023, 02:38 AM. Reason: spelling errors

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  • tccyo22
    started a topic Sandisk Cruzer Titanium USB
    in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

    Sandisk Cruzer Titanium USB

    I have a Sandisk Cruzer Titanium USB that will not power on and I'm tying to figure out what's going on. I'm following the 5V rail from the socket and I think I have a really weird resistance read.

    The first picture of the controller I'm assuming from looking online that the pin I've marked on the chip is the VCC which I currently have 2.5v going into.

    The second picture is the resistor I'm having my strange reading. It seems to fluctuate between 3k ohms all the way to 53k ohms? I thought it was my probes or shaky useless hands but I can read other values on other points...
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    Last edited by tccyo22; 05-13-2023, 05:20 AM.
  • tccyo22
    replied to Microsoft Surface Pro 7 NEED BIOS. HELP!
    in BIOS Requests ONLY!
    Re: Microsoft Surface Pro 7 NEED BIOS. HELP!



    Just realised the compressed file only contained my cleaned BIOS. I've reattached with both the original dump and cleaned version.

    And with an update to this, a new board and lcd assembly and still no touch with a cleaned ME, checked in the no touch thread about the sensor hub but it hasn't helped me. This is where it's new to me if the touch firmware portion of the BIOS is broken. I've tried once more to update with the microsoft firmwares but no luck. The UEFI is reporting touch firmware 3.1.75.139....
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