Lenovo 13 Type 20J2 S/N LR-0B02EQ 18/03 locating BIOS chip
Hi All,
Need help in locating BIOS chip on the motherboard of Lenovo 13 Type 20J2 S/N LR-0B02EQ 18/03.
There is a small cmos battery on the bottom side of the board. Upon removing battery can see two MXIC 8 pin ic's.
1) MXIC 25L80006E
2) MXIC 25V10358
Dumping first one only has 1mb of data. And does not look right.
By the way. Laptop has BIOS password set to get in to BIOS only. At the moment having difficulty locating BIOS chip on the physical mainboard.
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nas600
New Member
Last Activity: 01-26-2024, 04:20 PM
Joined: 02-26-2022
Location: West Midlands
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Re: Surface Pro 6 password
Hi BSolution,
Did not need to flash new bios. Thanks for your help. Touch started working after installing lates firmware and drivers pack. Hope this helps someone that has similar issue after flashing bios to unlock.
Thanks for all your support.
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Re: Surface Pro 6 password
Originally UEFI password was on. Which I forgotten. Patched BIOS boots up fine. Windows got installed correctly. But touch does not work. Can some one help?
Original capture file is Capt_original_010_ch341v144_25q128jv.rar.
Modified BIOS is "mod.rar".
Thanks...Leave a comment:
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Re: Surface Pro 6 password
Hi Ilias7790,
New screen has arrived. Windows installation and screen display works fine. But the touch is not working. I have reconnected cable but issue is not resolvd. Is this a known issue?...Leave a comment:
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Re: Need UEFI Password Removed from my Surface Pro 5 BIOS DUMP
Hi Friend,
I desoldered the IC. On thes chips I could not find an adapter that can connect while it is soldered to mainboard.
Removed it from mainboard. Then soldered on connectivity board with low tempereture solder....Leave a comment:
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Re: Surface Pro 6 password
Hi Ilias7790,
That worked. Don't have a touch screen to test full functionality. Taken display on external monitor.
How did you modify BIOS? Is their a guide that can provide more insight?
By the way. Thanks...Leave a comment:
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Re: Surface Pro 6 password
Hi Peste,
I just realised that dump uploaded previously was corrupt. I think my problem was choosing wrong chip. During comparision none of the dumps would be completely identical. Half was down the dump data captured was different.
I've now selected the right chip W25Q128JV. And multiple dumps are fully identical. Can you do you magic with this?...Leave a comment:
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Re: Surface Pro 6 password
Hi,
I forgot the Uefi password. Can someone help?...Leave a comment:
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Re: New Members - please post your introductions here
My Name is Nasir. Working on electronics specially computer motherboards/car/canbus related electronics for just ove 18 months. Started to get serious about flashing firmwares and SMD diagnostics. Investing in better grade tools as going along.
Heard of badcaps.net on mulitple forums.
Here to help others and gains knowledge while gaining more experience.Leave a comment:
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