Hello everyone.
Here is the bypass solution for several Lenovo ECs.
This has worked on many ECs.
Only works if password is contained in EC
I succeeded on many models
https://www.badcaps.net/forum/troubl...86#post3217086
https://www.youtube.com/channel/UCeF...t_adKcguvynjeA
I shorten the LPC bus, with the LAD0:3 and Gnd.
you can use the dedicated ports where you connect directly to the track.
(Be careful, resistors may be missing on the path)
look at the diagrams
example x390 npce388
...
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Hier nieuwe en eerste vraag
Heb een Hp probook 450 g6 en deze werkt volledig maar laad de Batterij niet op,
Het oranje ledje brand, de oplaadstatus beweegt, maar op 0 procent en als ik Batterij zelf op spanning meet is die nul
Op het moederbord op + en - staat geen spanning, iemand enig idee waar ik moet gaan zoeken of wat er defect zou kunnen zijn de coil vlakbij de laadpoort is er er ook geen spanning, dank bij voorbaat -
Hi,
I have a PGOOD pin down on this chip and I’m wondering if it could be because there is 5,2 v on VREG5 ( the high limit according to the datasheet is 5,1v ).
if yes, why is it to high?
the motherboard board is LA-G881P.
thank you.
here is some measurements :- VIN = 16,3 V
- VREG3 = 3,299 V
- VREG5 = 5,203 V
- SW2 (repos) = 3,423 V, pikes at ~16,4 V
- VBST2 = 8,592 V → VBST2 − SW2 = ≈ 5,17 V
- VO1 = 5,28 V (stable)
- EN1 = 3,08 V, EN2 = 3,04 V
- VFB1/VFB2 ≈ 2,1 V
-
Hi team,
I bought a lenovo thinkbook 14-iil with a core i 5 processor, Radeon graphics chip, board number: DALVACMB8DO - REV D from an auction. It does not have a bios chip and my guess is that someone disoldered it, so I am planning to buy a new replacement bios chip but I do not know how to reprogram the chip, can someone assist please -
Hello guys I need a little help here. I'm trying to fix this graphics card regarding it's 5v missing. The card came to me with a shorted buck converter GS9230 (U501) with zero output. I replaced the IC with a new exact same model and the short is gone, but still no output. I checked surrounding components and there seems to be nothing else is at fault as to my knowledge.. I removed coil (L500) to isolate furthermore.
Thinking that the new buck converter could be defective, I decided to replace it again with a new one but same result. This buck converter is a standalone IC which outputs...
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