Question L390 wont boot when charger is connected. Remove charger and boots straight away.

Mar 2, 2020
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Hello.

I have Lenovo Thinkpad L390. When i restart OS the laptop shuts down but wont restart. Machine is on but screen is black. When i remove the charger, it boots right away and works like a charm. No error's are given when i connect the charger.

Edit: i have already opened the laptop and discharged bios battery, no help.
Edit2: when it shutsdown and wont start, theres a led in FN Lock and F1 keys.
Edit3: If i shutdown the machine and then push power button it starts normally. So this only occurs on restart
 
Last edited:
Mar 2, 2020
7
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10
Did a different charger get you the same issue?

edit:
reinstall all drivers from the Lenovo homepage

eventually factory reset the laptop

Other than that, replace the battery
Actually did all these already. I also replaced the battery from another machine working fine and got same results. So its not the battery.

Have also tried with Windows 10 and Kali
 
Mar 2, 2020
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Update the BIOS if available
Also heres the edits on my original post:

Edit: i have already opened the laptop and discharged bios battery, no help.
Edit2: when it shutsdown and wont start, theres a led in FN Lock and F1 keys.
Edit3: If i shutdown the machine and then push power button it starts normally. So this only occurs on restart
 
Mar 8, 2020
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Bios is showing R10ET43W (1.28)
I had this problem when rebooting shutting down / starting Linux (Ubuntu), Windows 10 was working fine. I found the following:

BIOS 1.28 is the problem. Downgrade to eg. BIOS 1.27, and everything works just fine. Hope Lenovo will fix this in next BIOS release.
 
Last edited:
Mar 2, 2020
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Hello again. Thanks for this. It helped but not anymore. Also i bought another similar machine and voila, the problem is also in this machine!!!! Its nice to boot remotely and find out it hanged in boot cause of a charger...
 

COLGeek

Cybernaut
Moderator
Hello again. Thanks for this. It helped but not anymore. Also i bought another similar machine and voila, the problem is also in this machine!!!! Its nice to boot remotely and find out it hanged in boot cause of a charger...
Is this second system located at the same place as the first system? If so, are they both using the same electrical source?

This seems like a possible power source issue. The likelihood of two systems, this far apart in time, having the same issue is quite small.
 
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