Re: Thinkpad E15 NM-C421 charger not detected after port replacement
with battery and charger connected, the CELL_BATPRES line measures 3.3V both with the machine off and with it on
not sure if it means anything at all, but I've also noticed that, in this scenario, VSYS15 is noticeably higher than VBAT/BAT_PWR15 (ie VBAT is 11.74v but VSYS15 is 11.88V). might not mean anything, but I found it interesting as it shows that the bq chip is generating voltage
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Re: Thinkpad E15 NM-C421 charger not detected after port replacement
with only charger connected (no battery) I get the following
BAT_PWR15 is 0v both when the board is off and when it's on
CELL_BATPRES is 3.3V when the board is off, but drops to 0V after I press the power button and the board starts booting
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Re: Thinkpad E15 NM-C421 charger not detected after port replacement
thanks for the tips, but I'm afraid I haven't found anything substantial
I've measured the resistance between terminals of all 3 mosfets PQ0204 PQ0205 PQ0201 every way I could think of, and the values range from ~51kOms into the megaohms, so I don't think there's any significant leak. And yes, for the dual mosfets I've made sure to measure all the terminals including the bottom pads which connect to PL0202. I can write down every value if you think it'll help, but it's a lot of readings, and they also...
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Re: Thinkpad E15 NM-C421 charger not detected after port replacement
you are right, sorry I was being a bit lazy and vague in my previous messages and that might've caused confusion
I charged the battery to 80% using bench PSU, laptop will boot and run from it, it reads the percentage correctly as well as the BMS data (voltage, wear level, number of cycles etc) which you can see in the photo attached. I think it's safe to say the battery is good.
When I plug in the usb-c charger I can see 20V and current being drawn 0.6-0.9A depending on load, but the...
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Re: Thinkpad E15 NM-C421 charger not detected after port replacement
I see what you mean, but I assumed that the PD controller communicates with the superIO to tell the charger status and wattage. perhaps I was wrong
The battery was flat when the machine came in. If I inject voltage from my bench supply to the battery terminals I can charge it, so I believe the battery is good.
I did have a quick look around the bq25700 area but didn't see any components obviously burnt or missing
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Thinkpad E15 NM-C421 charger not detected after port replacement
Hi all!
Usually I like to think my diagnostic skills are quite good but this one has me a bit stumped.
Laptop came in with a damaged very loose USB-C port.
I ordered the correct port and replaced it, all good so far. Now when I plug in the usb-c charger there's a solid connection, I can see that the charger voltage jumps up to 20V, and if I press the power button the laptop turns on.
Unfortunately, the charger LED stays off at all times and in Windows the laptop doesn't detect that it's plugged in, despite running off the charger even with the battery...Last edited by SMDFlea; 06-01-2023, 11:26 AM.
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Re: New Software Achi LY by PSOFT
hi guys! I have the honton R390 with two PC410 (for top&bottom hot air) plus one REX C10 for IR preheat. Can anyone explain what modification (if any) I'd have to make to use software fully to control both top and bottom temperature (only the top PC410 in my case has RS232 communication)
Thank you
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Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal
@AAAC well I'm embarrassed. Sorry about that. It seems that pressing "Enter" at the boot screen freezes the machine completely, so it won't respond if you press F1 after. I just powered it down and pressed F1 straight away at the lenovo logo, worked like a charm. Thanks a lot
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Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal
Hi! I need some help with my x260. I've tried some of the files on here and also used the autopatcher on my own bios dump, but the laptop always gets stuck on the boot screen with the big lenovo logo where it says "press enter to interrupt blablabla" (yes, I pressed enter, nothing happened).
Can someone help me please? I've attached the bios dump below.
Attached FilesLast edited by SMDFlea; 03-25-2023, 11:57 AM.
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Re: unlock password on thinkpad x260
Hi! I've tried some of the files on here and also used the autopatcher on my own bios dump, but the laptop always gets stuck on the boot screen with the big lenovo logo where it says "press enter to interrupt blablabla" (yes, I pressed enter, nothing happened).
Can someone help me please? I've attached the bios dump below....
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Re: HP DMI Tool NBDmiFit
SOO.. in case anyone else is wondering, I actually managed to unlock the MPM by running UEFIMPMUNLOCK.EFI in nbdmifit 2.13 from the EFI shell. Even though the program says it's not supported on my system (2.14 would be the right version, but has no UEFI) . After MPM unlock I can use the normal tools nbdmifit or wndmifit to write the details...
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Re: HP DMI Tool NBDmiFit
I already went through the whole thread before commenting. I tried the config tools from post #137 but they just return access denied and still the MPM is locked sadly...
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Re: HP DMI Tool NBDmiFit
Hi! Can someone help me with my HP bios please? Dump here [url]https://www.badcaps.net/forum/showthread.php?p=1004223#post1004223[/url]Re: HP DMI Tool NBDmiFit<br /> <br ...t1004223[/url]
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HP 17-ab301na BIOS MPM unlock request
Hi everyone,
I've got the above model laptop for repair. There was some water damage on the board and I cleaned it up. Machine now boots but I get error on boot that the SN, UUID, model etc are all blank.
I've tried writing them with wndmifit from nbdmifit 2.14 which is the version that recognizes the laptop, but I can't write as the laptop is MPM locked.
I've attached a bios dump taken with my programmer
What's the best way to unlock MPM or at least write the missing details? I couldn't manage to find a guide and I'm still a bit of a novice...
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