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Re: Hi pls lenovo z50-70
s/n: YB10552514Comment
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Re: Hi pls lenovo z50-70
Working
Thank you.
Comment
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Re: Hi pls lenovo z50-70
thanks it work goodComment
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Re: Hi pls lenovo z50-70
lenovo z50-70
s/n YB07914565
ACLUA/ACLUB NM-A273 REV 1.0
IT8586E
It's my laptop. It was powered off properly and did not start again. All sources on the motherboard are fine, but the computer does not start. The power LED is on all the time. I can power off and on again de motherboard from power button. I suppose it's a bios fault. I tried the bios posted here and none of them work.
I am attaching my backup.
Thank you in advance.Last edited by SMDFlea; 04-11-2023, 01:24 PM.Comment
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Last edited by SMDFlea; 04-11-2023, 01:24 PM.----------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Re: Hi pls lenovo z50-70
Thank you for such a quick reply.
I tried the BIOS modified by you this evening and it doesn't work. However, there are other symptoms: after about 30s, the fan starts and works at maximum speed.
I also tried to extract the flash from the BIOS file on the official website (it's different from the one modified by you) and it still doesn't work. More precisely, I extracted the .exe file with 7zip, and then, using HxD, I searched in the isflash.fd file for the beginning of my file. I selected starting from there the 800000 block and saved the file, then I wrote it in memory.
Exactly the same symptoms as with the file processed by you.
Any idea?
This is the file I obtainedLast edited by SMDFlea; 04-11-2023, 01:24 PM.Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
all donations are welcome,
see the donate button at the bottom of the page, or
>>>>> click on this link to donate via PayPal. <<<<<
Every donation made will go towards server fees and maintenance costs.
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Re: Hi pls lenovo z50-70
It could be but I don't know what else to check. I checked all the sources and they seem to be fine, I disconnected all the components from the motherboard, I tried with another RAM, the processor cannot be replaced with the tools I have. I will probably abandon it. Too bad I've only had it for a month...
Thanks for your time!Comment
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Re: Hi pls lenovo z50-70
Ok, thanksComment
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Re: Hi pls lenovo z50-70
Hello, someone have bios for Lenovo Z50-70 with i5-4210U?
Comment
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----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: Hi pls lenovo z50-70
Hi, I have a Lenovo Z50-70 (with Core i7-4510U and Nvidia GT820M) that wouldn't boot. After some investigation, I reflashed the BIOS with one that I downloaded from elsewhere on this site. This got it working again, proving that BIOS corruption was the cause of the original fault. So far so good!
Of course, this temporary replacement BIOS does not contain any of the identity data from of the original and it also seems to take a while to boot, which makes me think that the ME data was not cleaned. It would be great if someone could take the identity data from the original BIOS (downloadable from the attached link) and put it into a clean Z50-70 BIOS for me. If you also need the serial number it is YB07250264
It would be even better if they could share how they did it so that next time I can be self-sufficient!Comment
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Re: Hi pls lenovo z50-70
You can learn from here
https://www.badcaps.net/forum/showthread.php?t=103527Comment
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All donations to Badcaps are welcome.
Become a Badcaps supporter
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Thanks to all supporters.
----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: Hi pls lenovo z50-70
Perfect! Much reduced start-up times and Windows reactivated. Thank you so much!Comment
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Re: Hi pls lenovo z50-70
Teşekkürler çalışıyor.
Thanks working.
[Mod. Edit-Vesko356] This is an english language forum, post in English please!Comment
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For Badcaps Readers, Please note that I am hopefully going to present this same message to Lenovo to see if they have any insight to the matter as well and figured to share the entirety here for clarification. The System is out of warranty as it is but does have the option to have it extended.
Model Information: T14 Gen 2 (Type 20XK, 20XL) Laptop (ThinkPad) - Type 20XK - Model 20XK0069US
Board: T14 Gen 2 (Type 20XK, 20XL) - Type 20XK.
System Hardware:
Processor: AMD Ryzen 7 PRO 5850U
Memory: 1x 16GB DDR4 3200 (Soldered on Board); 1x Crucial 32GB DDR4...09-08-2025, 10:46 PM -
Hi, I have this laptop, it is completely dead, no charging light when connected to a working charger.
Can anyone help me with some hints for troubleshooting this laptop?
Thanks in advance... -
In need for the above boardview.
Thanks in advance -
Hello
Laptop - Lenovo Z50-70
Motherboard: ACLUA/ACLUB NM-A273 Rev:1.0
Vendor: HannStar
I was doing some stuff on it utill I saw low battery notification. I have plugged AC adapter and immediately screen went blank. I thought that I was too late with plugging. However it stopped working after this. No LED.
I have checked the board for short circuits.
I noticed a malfunctioning mosfet - PQ302, so I have desoldered it. I checked its resistance, and it's really broken - R<1Ω
However, pins 5, 6, 7 and 8 are still shorted... -
Lenovo 3000 Series Schematic
Lenovo 3000 was a line of low-priced notebook and desktop computers designed by Lenovo Group targeting small businesses and individuals. It was replaced with the IdeaCentre and IdeaPad brands.
3000 C100 laptop with Braille keyboard
Lenovo 3000 C
C100, C200 - 15-inch XGA screen
Lenovo 3000 N
N100, N200 - 14.1-inch- and 15.4-inch- WXGA models
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V100, V200 - 12.1-inch WXGA models
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