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I discovered the /SKIP_CHECK_POWER command-line switch by running strings (linux) on the manufacturer bios update .exe file and looking for any useful switches. Using this switch successfully bypassed the check (passed through an admin cmd terminal) on an old NP600B5B laptop which otherwise complained instantly at the >30% requirement message. May work on other older Samsung models too... I also found older Samsung models will only play nice for bios updates in a Windows 7 environment. No luck with 10 or later... These bios updates can be critical - in the case above, "SATA Gen 3 Mode...Last edited by pingaroon; 11-25-2023, 08:47 AM.
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Re: Thinkpad Yoga LA-A341P BIOS
Many thanks - it works - I had to short pins 5 and 6 before the backlight came on, and then F1 let me in. On mine, it's a p24s08a...
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Re: Excruciatingly slow bios Dell E5570 LA-C641P
Hi - I used the same (me cleaned) bios in the other 2 (identical spec) good boards where it is flawless. I even tried with 2 or 3 other bioses from the tinternet but all with the same result: SLOW. Also, it was working perfectly with that bios and the fault suddenly appeared
Bad EC, PCH? I have no idea......
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Re: Excruciatingly slow bios Dell E5570 LA-C641P
Hi, 90W and 65W Dell chargers are both recognised normally in the bios (and both work normally on other boards), so it's not the charger.
I've swapped out plenty of bad charger id diodes (PD6 in this case) in the past where the charger cannot be detected, but this board runs even slower than boards where the charger is not detected! Throttling on steroids!
*headscratch*...
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Excruciatingly slow bios Dell E5570 LA-C641P
Hi, a once-good board has suddenly developed a fault where it runs slow - I mean REALLY REALLY SLOW. With no peripherals attached (including no SSD/HDD), the bios screens can actually be seen redrawing/refreshing themselves and it takes 30 mins+ to boot an o/s off a USB stick. All the PS coil voltages are normal and everything on the board looks fine (and works fine). I have a couple of good working boards for comparison but can't find any difference between the 2.
The problem is definitely not the bios.
I've changed 2 of the crystals to no avail.
...
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hi sir is your sas jig 3.8 still working need help
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Question for Dell Latitude 7420 owners
Hi,
Would somebody be able to confirm if this model will power on normally with the battery disconnected. I have a buyer who tells me this is normal behaviour and the board is designed to only switch on with both charger and battery attached. Since I've not seen that in a Dell board (except with Chromebooks), I'm skeptical.
Thanks!
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Re: I.O programmer SAS JIG 3.8V
I've ordered mine (successor). Sas Jig still works fine for 128kb chips -...
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Re: I.O programmer SAS JIG 3.8V
[url]www.vss.store[/url] - Russian language only.Re: I.O programmer SAS JIG 3.8V<br /...language only.Re: I.O programmer SAS JIG 3.8V
[url]www.vss.store[/url] - Russian language only....
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Re: I.O programmer SAS JIG 3.8V
The SAS Jig clone works well but is limited to read/write only 128kb. This is fine if the size of the chip is 128kb, but a disaster for 256kb chips. I found this out the hard way - it reads, writes and verifies the first 128kb perfectly, but leaves the final 128kb on the chip untouched. Dumping a 256kb chip therefore results in a 128kb file.
Since the software is cloned from the original vertyanov software, it could just be a case of waiting for the clone software to catch up. Original vertyanov software was also limited to 128kb chips...
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Re: THINKPAD L390 password
Thanks @dycc. I wish had been more patient. I tried, as suggested, with a patched dump for a similar machine to mine posted earlier on this thread. It went through the usual procedure (asking for hardware id, press space twice etc, but with the difference that at one stage, a strange character appeared on the screen that had never happened with any other machine I have patched with autopatch. Other than that strange character, everything looked normal and it *appeared* to have worked. Sadly, the board no longer starts. I have restored the original bios...
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Re: Lenovo Yoga L390 Nuvoton EC dump needed
Serial number of the Nuvoton chip is 0FE22201F (NPCE288GA0DX)
The back up dump is 128K in size (Yoga)
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Re: Lenovo Yoga L390 Nuvoton EC dump needed
ya, those CH341As are bad news...
Serial is via DM.., thanks (curious, why do you need the serial - is this embedded in the EC code?)
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Lenovo Yoga L390 Nuvoton EC dump needed
Hi, board is 448.0FC04.001M 18724-1M (LKL-2) for Lenovo Yoga L390.
Does anybody have a good dump of the Nuvoton EC chip?
Thanks
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Re: THINKPAD L390 password
Ah yes, good thinking - will do that tomorrow. I am curious how the good patch file has been created though - could @dycc or anyone share?
Thanks ...
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Re: THINKPAD L390 password
Hi, I have an L390 i5 8th gen board with bios password (type 20NT / 20NU) and the same problem with black screen when using autopatch:
Looking for volumes to patch...
[1/1] NVRAM_EfiSystemNvDataFvGuid (checksum 2609h):
Not found... Skipping.
I see @dycc had success patching - could you please patch the attached 2 dumps? Thank you!...
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