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can not find BIOS and Battery test with hp support instructions
@Vladu1 Welcome to HP Community!
I understand that no battery detected.
There are 2 ways to test the battery.
Open the HP support assistance and perform the battery test.
Or you can test the battery using the F2 function.
1. Power off the PC and make sure that it is completely powered off.
2. Press the power button and the moment you press the power button immediately start tapping F2 key, you should see the system diagnostics screen.
3. Look for the component test, under that all the hardware will be listed, please choose Battery and initiate the quick test.
Note: If it fails it will generate a 24 digits alphanumeric failure id, please capture that.
Please let us know the result.
Keep us posted,
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