otherwise 4Matic mod with your informations if you Ec is corrupted
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ThinkPad X380 la-f421p rev 1.0
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Update : got a bit sick. Computer is working no problem : I had the choice to permently disable computrace (which is done ) and supervisor password is disabled with no errors thanks to MaxPower EC file . The working bios for x380 is from 4Matic (Thanks). I managed to learn a bit from the dump provided. So i am assuming that computrace are those two 60 on adress 00000200 which needs to be zeroed out in order to have the choice to remove computrace. Supervisor password is disabled from zeroing out from adress 00000210 to adress 00000230 approximatively (I uploaded a binary diff between the original EC file and the one provided by MaxPower). As a bonus, I also read the EC chip when computrace has been set to permanently disabled beforehand (I uploaded the binary diff between MaxPower EC and the one read on the EC chip). Last thing here , are all the EC file in a compressed archive for ressearch purposes. Thanks for all the help given.
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Originally posted by Maxpower3 View Post
only the modified 4matic. Yours is always weird
Originally posted by FalconPunch View PostUpdate : got a bit sick. Computer is working no problem : I had the choice to permently disable computrace (which is done ) and supervisor password is disabled with no errors thanks to MaxPower EC file . The working bios for x380 is from 4Matic (Thanks). I managed to learn a bit from the dump provided. So i am assuming that computrace are those two 60 on adress 00000200 which needs to be zeroed out in order to have the choice to remove computrace. Supervisor password is disabled from zeroing out from adress 00000210 to adress 00000230 approximatively (I uploaded a binary diff between the original EC file and the one provided by MaxPower). As a bonus, I also read the EC chip when computrace has been set to permanently disabled beforehand (I uploaded the binary diff between MaxPower EC and the one read on the EC chip). Last thing here , are all the EC file in a compressed archive for ressearch purposes. Thanks for all the help given.
Last edited by qayyum786; 02-22-2025, 03:45 PM.
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Originally posted by FalconPunch View PostI managed to learn a bit from the dump provided. So i am assuming that computrace are those two 60 on adress 00000200 which needs to be zeroed out in order to have the choice to remove computrace. ]
I will come back tomorrow for that.
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Originally posted by FalconPunch View PostComputrace is enabled .
when you did your tests with my technique or when you entered the bios the first time with it was not present.
this was only declared with the gayvum file or mine post#47??
already no trace in your bios.
Second, I've encountered this problem before on a PC that doesn't have Computrace enabled.
But when I corrupt the data it activates
we also notice, if we compare the files
that it is filled with FF while this one should contain 00s here.
causes errors code 0188 + 0189 and 0177
0177 for checksum stories, explained above
0188 + 0189
if I don't talk nonsense these 2 lines
creates RFID errors
what becomes interesting now is if we compare my file with the one you deactivated computrace .
value has changed for the last 4.
I haven't yet fully understood these lines but we can spot them because there are always 4 bytes on one and 4 on the other side with 00s in the middle
Last edited by Maxpower3; 02-23-2025, 08:17 AM.
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Maxpower3 , Initially when the bios booted and displayed invalid information (Indeed , i flashed the bios from 4Matic and your EC file at post #47 ) , I had computrace set to enabled and greyed out. Also at the beginning, before I was trying the LPC AD with short to ground method, computrace was also set to enabled. (Also thanks for your exhaustive explanation)
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now, what helped to sober it up if it was still present with the files provided?
another bios and Ec but always present . weird
Last edited by Maxpower3; 02-23-2025, 12:40 PM.
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Originally posted by Maxpower3 View Post
yes I saw that you had talked about computrace before, I thought it had appeared after the tests.
now, what helped to sober it up if it was still present with the files provided?
another bios and Ec but always present . weird
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Originally posted by spacez View PostHELLO X380 not power . only fan and keyboard lights on for some secondes . kindly fix my issues . thanks
Lenovo ThinkPad X380 yoga
DTZS1 LA-F421P Rev 1.0
SN MP-1MG844 19/09
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