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szepesif
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Last Activity: Today, 08:29 AM
Joined: 12-13-2018
Location: Csongrad
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  • szepesif
    started a topic Lenovo Ideapad 3 15IIL05 working perfectly with onboard RAM but it doesn't start when I add a memory into the RAM slot
    in Troubleshooting Laptops, Tablets, and Mobile Devices

    Lenovo Ideapad 3 15IIL05 working perfectly with onboard RAM but it doesn't start when I add a memory into the RAM slot

    [LEFT][FONT=Georgia][SIZE=16px]Hey guys!

    I don't know the solution to this problem, but this is definitely not unique and I would like to figure out the solution to fix these in the future.

    I have two identical Lenovo Ideapad 3 15IIL05 laptops with integrated 4GB DDR4 memory. Both work perfectly with that. BUT... if I add any extra memory to the single RAM slot, it never gives a picture. I thought the RAM slot pins would be the problem but no, all pins are solid (I checked them under the microscope). The RAM in the slot has 1.2V, so the voltage is present on the module.
    ...
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Yes, it's a well-known issue affecting many ROG models. I hope there will be a solution eventually....
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    The whole laptop shuts down, not just the screen so it's a different issue in my case....
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Nobody solved this problem in the past?
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Yes, the power adapter is the original one but I tried it with a bench power supply as well, no difference.

    It could be GPU related but it's not shutting down right away when the desktop appears. When I try it with a live system (live Windows 10 PE Sergei boot pendrive) the desktop appears normally and starts to load the basic drivers and after a point, it shuts down. Almost at the same time each try. So it can be a specific hardware related but I can't figure out what can it be.

    A few months ago with a different GL553 I thought the nvidia chip was causing the fault so...
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    I removed and replaced the fourth drmos as well. Nothing has changed...

    These laptops will drive me crazy. What else could I check? What else could cause these sudden shutdowns?
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    No, I can't boot any operating system, not even a Live one. The Windows installer works, the Live boot starts but as soon as the desktop should appear it turns off.

    I'm attaching a thermal camera image of the DRMOS round. I replaced the second one from a donor because I thought that might be faulty but it didn't help. The first coil on the left has no voltage, the rest is strange for some reason.

    If I measure them on the CPU side all three have stable .940V. But if I measure them on the DRMOS side only the 3rd one has stable .940. The second one and the fourth one is...
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  • szepesif
    replied to Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    I checked D8801 and it's perfect. It's conducting one way from #1 and #2 to #3 but not the other way around in diode mode....
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  • szepesif
    started a topic Asus ROG GL553V shutting down before Windows
    in Troubleshooting Laptops, Tablets, and Mobile Devices

    Asus ROG GL553V shutting down before Windows

    Hey guys!

    This is the third laptop here with this exact same issue and the forum threads and YouTube comments are also filled with this problem so I would like to figure out once and for all what's causing it and how to fix it because this model will keep coming to me to repair.

    Symptom: The laptop turns on and works fine UNTIL the Windows starts loading, then it shuts down. I can start it again but the same thing happens over and over again so I can't get into Windows. BUT I can enter the BIOS and it stays there forever without shutting down. The same applies if I remove...
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    I'm wondering... I didn't succeed with this method on a Lenovo Thinkpad E15 Gen 2 laptop (I could enter the BIOS easily but the double-enter empty password was never saved in my situation). Is there a chance that Lenovo closed this security hole in their BIOS? Should I try to flash an older BIOS before I try this again? Is there any chance or it won't help at all?
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    After a few hundred tries I can confirm that this method is not working for Lenovo Thinkpad E15 Gen 2 with ITE8227E EC chip. I tried it with all points, at least a few hundred times. I can log in to the bios with this method easily now, but when I double enter the empty password it never saves it, no notification, nothing. Then the ctrl + alt + del is not restarting the machine either, it just hangs with a black picture. So I have to order a programmed EC chip, unfortunately. I leave this for other users who have the same laptop. It won't work with this method, you will need a programmer or a...
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    Yes, that's my technique as well. I hear the coil whine and I can time it right with that help. My issue is that even if I can enter the BIOS and I can change all settings, the password is not getting removed. In the Youtube videos I saw a notification after the blank double enter showing that it has been saved. But when I double enter the password window just disappears and I didn't see any notification. After the restart, the supervisor password is still there. So I'm lost and I don't know what am I doing wrong.

    The hardest part should be to enter the BIOS correctly and I think...
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    I plugged the CMOS battery because if I remove it then it will complain about the date and time each time I start the board and I don't know if it messes up the process or not. Plus without the battery the startup is really slow each time so my tries will be much slower. But I can remove it if it's necessary, I just want to make sure I'm doing this right because I tried this almost a 100 times without any success and most likely I'm missing something....
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    I also tried with other LPC points but have no luck, and it's really frustrating. With the other ones the BIOS is incomplete, I can only see the config and date&time options on the left menu bar but no security tab. With PIN9 I can enter the BIOS after a few tries but it's not saving the cleared BIOS.

    The CMOS battery is not removed, should I remove it during tries? Or what I can do differently to make this work?
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    What am I doing wrong?

    E15 Gen 2, IT8227-E. I'm grounding PIN9 of the EC chip and when I'm successfull I get Fan error, KB error and it says press ESC to continue with limited performance mode. Then I press F1 to enter BIOS and I can change all settings.

    BUT... If I go to supervisor password it says next to it that it's disabled and if I press a double enter with an empty password it doesn't give me back a notification that it was saved. I clear the security chip, I press ctrl+alt+del and then the laptop restarts and the password is still there. What am I missing? Why...
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    So I can try shorting any of the LAD(0-3) lines with ground without killing my CPU?...
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    Check the first post please. There's an E15 Gen2 zip file there which means it's possible. Also, if you search on the "IT8227" here you will see other success stories. So that's why I think it's possible....
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    The first post mentions this model (E15 Gen2) and I also found successful posts with the IT8227E EC chip so I think it's possible, I just need confirmation and a little guidance to get started....
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  • szepesif
    replied to Lenovo Thinkpad Ec Pwd Bypass
    in BIOS Requests ONLY!
    Hey guys!

    Can you help me identify where to attempt the bios password removal for the Lenovo Thinkpad E15 Gen2?

    It has the IT8227E EC chip. I'm attaching the board view and the schematics. Is the EC_ESPI_RST the correct point to short to ground?...
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