tomodachi
Badcaps Veteran
Last Activity: Today, 02:29 AM
Joined: 04-03-2012
Location: Istanbul
-
Have you been able to find schematics for this computer ? -
Hello I have a question
I replaced 10th gen intel cpu and cleaned me using fitc now board post fine but now not detecting ssd, what causes that and what setting do I need to do ?
This happened me on several intel me cleaning and I want to figure out why
Thanks in advanceLast edited by tomodachi; 04-22-2025, 07:21 AM.Leave a comment:
-
Sad to say but, another Lenovo low temperature soldering (LTS) related issue..
See this article:
[url]https://news.lenovo.com/pressroom/press-releases/lenovo-announces-breakthrough-innovative-pc-manufacturing-process/[/url]
Most probably it caused by cold solder joints at NVME port or loose bga connections under CPU.https://Sad to say but, another Leno... Most probablyLeave a comment:
-
RTC reset ?Leave a comment:
-
Common problem with that generation of Dell laptops is bad heatsink, check to see if fan side of heatsink is hot or cold during operation.
if cpu side is hot and fan side is cold, and I mean literally cold, then you have a broken heatsink copper issue
During operation each side of heatsink must be hotLeave a comment:
-
Update
Had to return it to customer due to shortage of time, if it come back I'll check.
Thanks for taking time to answer
Leave a comment:
-
Apply usual reflow temperature, when balls melt use a thin blade to seperate chip from board by sticking it under and turning it, that is the way.
Some BGA chips require extreme force to come off but in the end they don't get damaged so don't worry
in some cases pcb paint might come off but it is repairable.
Be patient , it totally worth the effort
...
Last edited by tomodachi; 04-03-2025, 12:19 AM.Leave a comment:
-
Lenovo Thinkpad L13 Yoga LAR-1 18834-1M self RTC reset on every startup
Hello
This device came in with a strange problem,
The laptop starts by resetting the time and date settings every time it is turned on, as if the RTC battery was removed.
RTC battery is brand new, 3V is present at Q2502
No liquid damage or corrosion, board is clean
Same on AC or battery
schematic and boardview can be found here
[URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/97646-need-lenovo-thinkpad-l13-gen1-schematic-and-boardviewer[/URL]... -
Many thanks !Leave a comment:
-
Thank you SMDFlea for answering
Unfortunately, since the resistor location information is not written in a readable way in the shared PDF(silkscreen file), it does not work for me.
I think I need a boardview file of .tvw format, but it seems unavailable anywhere.....Leave a comment:
-
Hello, any chance to find boardview, or at least location of these two resistors stated above ?Leave a comment:
-
Check to see if heatsink is hot in both end. if only cpu side is hot and exhaust side is cold then you have a broken heatsink problem, which is very rare but happens sometimes.Leave a comment:
-
Try this...Leave a comment:
-
Thank you very much for this useful software.Leave a comment:
-
if there is doubt do not use it...Leave a comment:
-
Thank you, I will try it...Leave a comment:
-
Any ideas ?...Leave a comment:
-
Thank you very much @[B][URL="https://www.badcaps.net/member/391642-hoaca388"]hoaca388[/URL][/B] for helping, it boots without password now.
I have a question. I have 4 more of this model waiting for bios password removal, when I try this dump on others they boot fine except when I plug AC adapter PC starts itself automatically.
I uncheck every self power on option on BIOS menu but this keeps happening.
Should I post each remaining 4 units dumps here or is there a way around it ?Thank you very much @[B][URL="https://www.badcaps.net/member/391642-hoaca388"]hoaca388[/URL][/B]...Leave a comment:
-
What exact bsod codes it showing ? did you run memtest ?...Leave a comment:
No activity results to display
Leave a comment: