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Search: Posts Made By: mferna14
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-30-2022, 03:33 PM
Replies: 16
Views: 947
Posted By mferna14
Re: It8528e kbc Inspiron 15-7547 (MB DA0AM6MB8F1 Rev F)

No need to replace the Keyboard, It was the I/O chip which was defective. Replaced it with a new one & all worked fine.
Forum: BIOS Requests ONLY! 09-27-2022, 02:58 PM
Replies: 13
Views: 327
Posted By mferna14
Re: Acer Nitro 5 / AN515-44 - need BIOS file

SMDFlea., Now, hopefully I have uploaded the BIOS & have read it well with the right Chip number. Can you please check it & modify or re-build the BIOS Bin file. This BIOS chip XM25QU128B is 1.8V...
Forum: BIOS Requests ONLY! 09-25-2022, 06:51 PM
Replies: 13
Views: 327
Posted By mferna14
Re: Acer Nitro 5 / AN515-44 - need BIOS file

In my case ACER used this chip XM25QU128B which works from 1.65V~1.95V. I even checked the working voltage of this BIOS chip on the motherboard when I turned the MB on, VCC on pin 8 is full 1.82V,...
Forum: BIOS Requests ONLY! 09-25-2022, 12:34 PM
Replies: 13
Views: 327
Posted By mferna14
Re: Acer Nitro 5 / AN515-44 - need BIOS file

Actually the programmer could not pick up the correct BIOS Name & it actually number. So I picked up a generic number. For this model, ACER used a XMC BIOS 25QU128BH1Q. So I used a closet to this...
Forum: BIOS Requests ONLY! 09-25-2022, 09:32 AM
Replies: 13
Views: 327
Posted By mferna14
Re: Acer Nitro 5 / AN515-44 - need BIOS file

Yes, tried the BIN files in post # 5, does not work, (same blank screen & fan runs fast).. Do you think that something else might have gone wrong with the motherboard??
Forum: BIOS Requests ONLY! 09-24-2022, 01:41 PM
Replies: 13
Views: 327
Posted By mferna14
Re: Acer Nitro 5 / AN515-44 - need BIOS file

Hi all, I am woking on an ACER Nitro 5 AN515-44-R99Q, problem is that after an update the screen went blank & NO DISPLAY at all. I removed the main & CMOS battery still no luck, no reset switch for...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-23-2022, 03:12 PM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

Mon2, I got the exact replacement, but it was a knowledgeable try... Did not work at all. Same problem. I think mcplslg123 is right, it's the SOC which is defective & I should not be wasting more...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-23-2022, 01:40 PM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

mon2, I am expecting this is the correct crystal 24MHz, I will replace it with a brand new one.. Thnaks
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-23-2022, 11:31 AM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

Much appreciated mon2., will do so later & will inform you. Thanks
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-23-2022, 09:31 AM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

mon2 thanks for the info... My dear do you have the schematics for this board or you have just posted generic photos of any random schematics with this SOC???? Kindly info me, troubleshooting will be...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-22-2022, 09:39 PM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

Hey "mon2" read it now., I was so involved with the others.. Mon2 where is this crystal???/ Do you have a location for it? & how will I be able to test crystal??? Kindly inform me please. Thanks
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-22-2022, 08:52 AM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

Thanks mcplslg123 for the answer, I will do one last deep testing & then will order new motherboard.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-21-2022, 01:15 PM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

You guys are so right "SMDFlea" & "mcplslg123", USBs, Webcam & SD Card reader solt even is not working. I have attached the photos of tHe USB board, kindly look into it. Hopefully we can resolve this...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-21-2022, 09:39 AM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

Thanks, I will check both & report later..
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-20-2022, 07:10 PM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

I mentioned the meter reading for the Data lines, both are almost 400Khms, & the 5v is always present, the voltage is not fluctuating at all, stable as ever. I checked, but there does not seem to be...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-20-2022, 04:39 PM
Replies: 28
Views: 399
Posted By mferna14
Re: Hp 15-cs2023ca USB 2.0 not working

Thanks for the reply. This has Only 2 USB ports & built-in USB 3.0 in it. I am only concerned about the Generic USB 2.0 which should work & now not working for some reason. More info pls. ask me....
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-20-2022, 02:20 PM
Replies: 28
Views: 399
Posted By mferna14
Hp 15-cs2023ca USB 2.0 not working

Hi, I am working on a Hp 15-cs2023ca Laptop, Logic Board # DAG7BMB58C0 REV: C. The motherboard works fine but the USB 2.0 does not work at all & gives Error "unknown usb device (device descriptor...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-12-2022, 10:13 AM
Replies: 29
Views: 1,370
Posted By mferna14
Re: MBA 820-01521-A Missing PP5V_G3S

I had 5v 0.15amp on the amp meter display before I could replaced the CD3215C00Z. It was just my sixth sense that I was willing to do the extra work to make sure that I received a Defective CD' for...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-11-2022, 06:53 PM
Replies: 29
Views: 1,370
Posted By mferna14
Re: MBA 820-01521-A Missing PP5V_G3S

Just to add my input to all this... I had exactly the same problem & guess what, I had BRAND NEW CD3215C00Z DEFECTIVE... I removed these chips from a working logic board, re-balled both & all worked...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-08-2022, 07:58 PM
Replies: 3
Views: 166
Posted By mferna14
Re: MacBook Air A1466 Keyboard Problem

Hi mon2., so in my case I replaced the 4x33ohms R4850~53 resistors & R1665, R1666 & R1667 because the were corroded a bit & relation to SPIs. But still no luck. Then I removed the battery &...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-05-2022, 04:09 PM
Replies: 3
Views: 166
Posted By mferna14
Re: MacBook Air A1466 Keyboard Problem

Thanks for the reply mon2, I will check & inform you..
Forum: BIOS Requests ONLY! 09-05-2022, 04:08 PM
Replies: 9
Views: 1,857
Posted By mferna14
Re: HP ENVY X360 Gale 4G MB 17887-1A

I think the battery is 11.55V. Take any donor board & if you say its a diode, just remove the diode for the donor board. I think this might be a Zener or use one of these PDZ5.6B. In all ENVY...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-05-2022, 03:55 PM
Replies: 16
Views: 947
Posted By mferna14
Re: It8528e kbc Inspiron 15-7547 (MB DA0AM6MB8F1 Rev F)

Yes, all worked & all keys worked too...
Forum: BIOS Requests ONLY! 09-05-2022, 03:53 PM
Replies: 16
Views: 664
Posted By mferna14
Re: ThinkPad t460s Patched Bios Request! 20FA

SMDFlea., before you could write to me., said to myself let's try the patch by "Maxpower3". I programmed the patch on another BIOS chip & guess what, all worked fine. Now I guess I can inform...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-05-2022, 11:48 AM
Replies: 3
Views: 166
Posted By mferna14
MacBook Air A1466 Keyboard Problem

Hi All., I am working on a Apple MacBook Air A1466 Board # 820-00165-A. It was in for not turning on (DEAD) & SMC getting hot. Upon mircoscopic observation, I saw a little corrosion on one of the...
Showing results 1 to 25 of 500

 
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