Re: Laptop battery charging circuit
Controller inside the battery is becoming locked if the cells were deeply discharged, so even if you charge the cells you need to reset the controller. It can be done with different ways, there are hardware and software tools like NLBA, be2works, etc.......
NBel
Member
Last Activity: 03-18-2025, 08:30 AM
Joined: 05-01-2016
Location: Chisinau
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Re: mec 16xx dump with info block
THANKS MAN you are right, Lenovo wants exact model to be written, so I added 20S5=ThinkPad P14s Gen 1 in the plnsrv and all went fine! Thanks for the help guys!...Leave a comment:
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Re: mec 16xx dump with info block
Its EXACTLY the same one that I use...
One more theory to confirm tomorrow - flash EC one more time, and start it from scratch... maybe initialize eeprom works incorrectly from the second time.......Leave a comment:
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Re: mec 16xx dump with info block
Ok, going deeper in the rabbithole of lenovo Maintenance Utilities.))
My laptop is P14s gen1. EC Flashed with rt809f, no problem, same resistor for jtag reset and the same jtag pinout as showed earlier in the topic. Now we need to write serials back, and here is the problem!
Googling this problem lead me to this video [url]https://www.youtube.com/watch?v=U30H3_iNM3k[/url]
I am using ThinkPad maintenance utilities 1.11(x64) blabla august.12.2020. First time I didnt have planar service option in the forst menu...Leave a comment:
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Re: mec 16xx dump with info block
Hi, how did you solve 2202 Product Name is invalid error? Playing with Maintenance Utilities 1.11 for hours, programmed B0 and C0 couple of times, programmed band name but error is still here.... Thanks for the help!!!...Leave a comment:
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Re: Dell E5570 MB LA-C841P help with +VCC_GT power
Try, it is dump form the board with shorted CPU, windows key cleared with XXX.
MOD EDIT: bios moved to [url]https://www.badcaps.net/forum/showthread.php?t=106949[/url]
ps. had a lot of those boards, most of them with failed cpu drmos, and cpu dead. and one with hissing noise, from PL801. Changing PL801 from 2r2 to 3r3 seems to solve the problem.Re: Dell E5570 MB LA-C841P help with...<br /> <br />Last edited by SMDFlea; 06-01-2022, 12:03 PM. Reason: bios moved to https://www.badcaps.net/forum/showthread.php?t=106949Leave a comment:
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Dell E5570 MB LA-C841P bios
Try, it is dump form the board with shorted CPU, windows key cleared with XXX.
ps. had a lot of those boards, most of them with failed cpu drmos, and cpu dead. and one with hissing noise, from PL801. Changing PL801 from 2r2 to 3r3 seems to solve the problem.... -
Re: Lenovo ThinkPad T550 W550S Wistron LSZ-1 13251-1
Thanks mate!Leave a comment:
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Re: Lenovo ThinkPad T550 W550S Wistron LSZ-1 13251-1
Hi all need schematics and boardview for this board, troubleshooting sata detection issues, thanks in advance!Leave a comment:
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Re: HP ZR2440w backlight cutting out
Hi, had the same monitor with very dark backlight, mine problem was with cracked pcb copper on the pads near the backlight flex connector on the power supply. As seen on some photoes, they are tinned one some boards, but mine were not. Just soldered them and backlight works)
Hope this helps somebody)Leave a comment:
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