Hello,
I was playing with the Maintenance disk V1.89 with the UFEI boot file on a Lenovo X1 carbon 7th gen. I cleared the EEprom and now it has a error 2202 "Brand name is invalid" on boot. I think I need a newer Maintenance disk V2.02 with full UFEI and I cannot find one. Is there any method to change or fix it if I dump the Bios or does anyone have the new maintenance disk?
Thank You very much
davem12
Member
Last Activity: 11-13-2022, 03:05 PM
Joined: 05-15-2019
Location: NYC
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Re: Lenovo X1 7th Gen Carbon removing WSON Bios
I believe the surface tension with solder is it will hold it in place and the chips will align to the solder pads.
I think one of my issues is I don't have a pre-heater for board rework and I need to apply a lot of hot air to get the solder to melt.
Thank You -
Lenovo X1 7th Gen Carbon removing WSON Bios
Hello,
I am trying to read the Bios on a Lenovo X1 Carbon 7th gen. It has a Winbond W25Q256JVEIQ chip in a WSON configuration. I have not come across this type of chip in the past and there is two very small resistors next pins 1 and 3. I don't want to blow them off when using hot air. Would it be possible to read on-board or does it need to be removed to read correctly?
Any tips would be very helpful.
Thank You... -
Re: Lenovo X1 Carbon 7th Gen 20QD Bios
Hi,
I found the W25Q256JVEQ Bios chip. It is a 8-WDFN Exposed Pad type chip. How do I connect to it and read it?
Sorry for the newbie questions. I never came across one of these chips....Leave a comment:
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Lenovo X1 Carbon 7th Gen 20QD Bios
Hello,
I am looking for a Bios file for a Lenovo X1 Carbon 7th Gen Type 20QD. The one I am trying to repair had a failed bios update and was corrupted and will not post.
Thank You -
Re: Ailenware 17 R4
Hello,
I flashed the firmware, no help. I found a leaking inductor at the CPU. The inductor measures 4.18mm LxW 1.83mm H. I believe that it is a series 4020 chip. The part I found is SRP4020TA-1R0M, would this be the correct one and will this cause the CPU overheat fault code?
Sorry for the noob questions. I'm new at this.
Thank You very much for your help
Dave...Leave a comment:
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Re: Ailenware 17 R4
Wow,
That was a really quick response. Went to take it apart and just found the 25Q128 labeled UH4 and was going to update my findings and you beat me too it. Thanks for the information and the link
DaveLeave a comment:
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Re: Ailenware 17 R4
Thanks for all the info,
I tried using the SOIC clip and got errors. I will de-solder the chip and read it and save original Bios. Is there any specific Bios that worked well for this board. It is a Winbond 25Q80DVS1G chip.
Thank You
DavidLeave a comment:
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Re: Ailenware 17 R4
Thank You for your feedback and troubleshooting tips, I will look into this.
I need to figure out where is the voltage rail at.
What happened was the owner never cleaned the cooling fans and they were full of dust and hair until she got a CPU overheat code. When it is powered on now, the cooling fans come on for 7 seconds and goes out for 3 seconds. It does this several times until the power led flashes 2 red and 1 blue code, then the cooling fans go to full speed.
When researching the CPU failure, this has been a common occurrence...Last edited by davem12; 07-12-2020, 06:13 PM.Leave a comment:
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Ailenware 17 R4
Hello,
I am working on an Ailenware 17 R4 M/B BAP10 LA-D751P Rev 1.0
I am getting a two red and one blue code on the power button which said CPU fail. I tried removing the battery connector and the bios batter reset, no help. I also re-flowed the CPU and I still have the same error. I believe that the CPU overheated and failed, is there anything else I can try?
Thank You -
Re: New Members - please post your introductions here
Hi,
Finally found this great place. Hope to learn and contribute to this forumLeave a comment:
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