Just wanted to follow up and say I've worked out all the kinks and am eternally grateful for all the help you and this community has offered me.
Happy Holidays!...
ShockStruck
Member
Last Activity: 12-26-2024, 06:52 PM
Joined: 12-20-2024
Location: MI
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I should also say the laptop is now refusing to turn on alongside that. I'm hoping it's not some weird interaction of the modifications + some of the settings I enabled in the BIOS.
I'll let it charge and then if it still doesn't power on, pull main battery/CMOS battery. A BIOS update is probably good measure too I'd imagine.
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Thank you kindly! I was able to flash this and disable Absolute permanently in the BIOS. It did give me a "restoring bios from backup" and "bad crc of security settings in EFI variable" a few times but that appears to have went away.
After restoring BIOS to default and making some changes, it did power off and give me the power button triple light blink. I'm thinking this may just be a dead battery though? I'll let it charge and see what happens....Leave a comment:
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Great news! I was able to grab a few matching dumps of U2201 successfully!
Please see attached....Leave a comment:
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Thank you kindly for the advice! I went ahead and bought a WSON8 probe with long flexible legs I will try first (really trying to avoid applying any heat to the board if not totally necessary). If that doesn't work, I will try soldering small wires to the 8 pins of the chip....Leave a comment:
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I'd love to see some stuff on server platforms. One thing I've been looking to fill gaps in my own knowledge is adding different CPU support for AMD Epyc generations of the same socket. Particularly with Dell gen 1 EPYC servers. Seems totally doable to replace gen 1 EPYC AGESA code with either gen 2 or 3 and would save homelabbers the need to buy newer (much more expensive) server platforms just to get newer microcode....Leave a comment:
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It appears to be so, any suggestions on how I should go about reading this chip? I was thinking about trying some female to male dupont wire to use as probes, but ultimately I'll likely need to either solder wires to the legs, or obtain a WSON8 clip probe for an accurate read....Leave a comment:
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You thought correct, I have been reading U2202. U2201 appears to be a Winbond 25R256JVEN which may be difficult to get my clip around. I'll give it a try but if I end up needing to bust out the soldering tools this may need to wait until tomorrow.
Either way, I very much appreciate your assistance and patience....Leave a comment:
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Alright, so I have just completed another 4 reads of the chip in question with the program "AsProgrammer". These all have a matching MD5 hash so this SHOULD be a solid dump....Leave a comment:
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Okay, I am reading the chip right now. Will reply back after 4 dumps that much....Leave a comment:
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Ahhh sorry about that, I have attached it here....Leave a comment:
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Lenovo P15s Gen 2 - Absolute Removal
Hello!
I was hoping one of you kind folks could assist with removing Absolute on the attached bios dump? There is no password on the bios, so I am hoping this can be done without replacing the MEC1503 with one from a donor board.
Model: Lenovo P15s Gen 2 (20W7-S1KR00)
Serial: PF3CV07L
Board: NM-D352 rev 1.0
Fixed attachment...Last edited by ShockStruck; 12-21-2024, 02:45 AM.
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