tccyo22
Senior Member
Last Activity: Today, 09:11 AM
Joined: 10-29-2019
Location: London
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Thank you so much for sharing this. The yellow pad is missing as well so I'm going to assume where that trace to the left isn't connected to somewhere that the line draws to the right towards what is most probably U22A1 (also very likely under the shield unless i can connect a wire somewhere else). I've got the iPad switched on and it seems to be mostly working aside from the lack of charging which is expected if a trace is missing... -
Thanks, figured it might be. Just gotta find the value now, unfortunately don't have another one of these to check or pinch one from....Leave a comment:
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iPad Pro 11-inch (4th Generation) A2759 - Missing component
Manged to get a hold of an iPad Pro 11" 4th Gen however it does not charge and upon opening it looks like someone has tried to replace the port and knocked a component off but I cannot find a schematic or boardview for this model so was wondering if anyone could help identify what I think is a missing pad and capacitor? Looks like whoever was in here last tried to put it back on with hot air and melted the plastics too......
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Thanks for the help. I got it booted but back again to crashing whenever I try to boot to any USB or SSD and this is with the BIOS from the HP website so something else is going on. Will work on this one but at this point don't think its BIOS or Intel ME related.Leave a comment:
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Ok thanks, will report back with results...Leave a comment:
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Was about to ask about that as I found the thread to find the information of which BIOS to grab from the HP website but there is 7 different ones and of course, cannot use BID to find which one from that dump. Is there any other way to telling which I would need or is it going to be a case of flashing each one until it works?...Leave a comment:
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This is what I thought might be the case. This dump was the 3rd read - all 3 the same. I guess I'll need to grab a BIOS and add the DMI information....Leave a comment:
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Hey there! Would love some assistance with figuring this one out. The laptop would originally boot to BIOS, however anytime you tried to boot to USB/HDD or anything it would crash almost immediately after booting to any device and I know they were fine because they boot on all my other devices just fine.
I initially tried an ME clean however I would get the message "File does not contain Intel ME firmware" and now the laptop is turning on then off currently.
S/N: CND2043XVL
Original BIOS dump attached.
​...Leave a comment:
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PS5 EDM-020 CFI-1116A Disc Edition - 1 Beep No Power/Light
Hi there, I have an EDM-020 CFI-1116A Disc Edition PS5. It originally had the 3 beeps on power which after grabbing a known working BIOS for this board and model it now will beep once every 20 seconds hitting the power button but will not turn on.
So far I have checked all voltage rails and everything seems to be present from 12v all the way down to 0.8v rails. However I am unable to connect to and read the UART and get error codes. Also something I found in my measurements is the bank of coils for the APU read 0.3ohms. Now I know that CPU/GPU lines have low resistance but I'm not... -
MacBook Air 13" 2020 A2179 Audio Board
Hey all! I have a MacBook Air 13" 2020 A2179 that won't switch on with the audio board connected so before just replacing it outright I took a quick look and found a cracked cap and short. Removed the cap and the short has gone so want to replace the cap to see if we can use this audio board still.
TL;DR Anyone know the value of the cap circled in red in the attached picture?... -
The 2N chip does not get warm, there isn't really any sign of heat anywhere with the charger plugged in. I do have a particularly low reading on a 3VA_EC (<1k) on the SIO. Is it likely that the SIO may have taken some amount of spike when liquid was on the 2N chip and that is what has gone.
When I get chance I think it's safe to inject 1v onto that 3VA rail and see what current draw if any.Leave a comment:
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Ok thanks for the clarification, wasn't sure if I was missing something with LDO3. That rail isn't shorted directly to ground however it is possibly being strange as it reads ~75k when I first put my probe on the pin and then takes about 10 seconds where it tops out at ~220k. I swapped the IC to a new one just in case the original one that got hit with liquid went bad however it's the same result.Leave a comment:
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Asus X409DL Rev 2.0
Hey all,
I've got an ASUS laptop (Asus X409DL Rev 2.0) that had a little liquid spill on it however the majority was on the daughter board for the I/O stuff which is connected over a ribbon cable which I have disconnected for now. A small bit of liquid did however get onto what schematics and boardview show is a DC step down IC; a Realtek RT8249CQGW - markings: 2N=. There is no short on the main power rail as I have 19v with the charger plugged in however I have no other power, standby or always on rails anywhere on the board. Looking at the datasheet for this IC I want to sanity... -
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...Leave a comment:
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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... -
This works, thank you so much....Leave a comment:
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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...Last edited by tccyo22; 01-05-2024, 06:42 AM.Leave a comment:
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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?Last edited by tccyo22; 09-20-2023, 04:18 AM.Leave a comment:
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Re: HP Zbook 17 G5 BIOS ME Clean
Thank you!...Leave a comment:
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