Laptop works fine on AC power but will not power up when only on battery.
Battery icon states it is at 50%+ and charging.
Faulty battery pack is probible cause but before I send it back I would welcome any suggestions.
Perhaps try taking the battery completely out of the laptop for 5-10 minutes and then replacing it and trying again. My Dell wouldn't work on battery alone but was fully charged and leaving the battery out for a while before replacing it worked for me.
Also keep your eye on how much the battery charges. It may be a faulty AC adapter also.
Best of luck.
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To remove the bios password you need to clear the CMOS. Open your laptop casing look at your motherboard. locate the CMOS jamper it is near the battery. To clear remove the jamper and turn your computer on with in 5 to 10 seconds and turn it off. Reinsert the jamper back to there proper place and try to turn go to BIOS if there will be a password box appear.
You need to open your laptop and look at the motherboard and locate the CMOS battery. Just remove it with in 5 minutes to clear BIOS password.
It's possible that the AC adapter "died", and then your computer ran on battery-power until the battery went to 0%.
Or, the socket on the laptop where the AC adapter connects could have broken, or become disconnected from the motherboard, such that the power from the AC adapter was not being accepted, meaning that your computer was running on battery-power.
Take the AC adapter and the computer to a qualified technician, who can test that the AC adapter is working fine, and can disassemble the laptop, to inspect that socket where it connects.