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- Problem with not charging battery of HP laptop solved

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03-28-2017 04:49 AM - edited 03-28-2017 05:08 AM
I got a tedious problem with the battery of my 8 month new HP ProBook laptop not charging and this since ±4 months.
The pc is mainly on grid current but the battery charging monitor showed always something like for example 95% or 97% and also always 'Battery not charging' instead of 100% fully charged as it should be.
The battery test said: Primary battery OK
I suspected a software problem
Removing the Microsoft ACPI battery driver via Control Panel did not help after reboot, same problem.
There had been some BIOS updates, I knew and I searched for a method to go back to the original BIOS
So I tried out: HP Notebook PCs - Restoring the BIOS
First I had unplugged the power adapter for 1/2 hour to discharge the battery to ±85% level.
The restore program asked at certain point also for allowing 'Unrestricted BIOS rollback' which I did.
And suddenly I saw that the battery was charging again and the charging level increased also steadily to 100% fully charged.
The problem was solved apparently.
Probably I got a not perfectly suited BIOS update and that must be at the origin of the not charging problem.
The current System-BIOS version is N78 Ver. 01.15
I made also a backup of the BIOS on a USB flash drive which gave after unzip a ROM file of 16,384 kB
I had already earlier created successfully a web case ticket for the same problem and after following all the instructions the problem was solved but not permanently and the same problem reappeared after a certain time.
Now it's solved permanently I hope.
