I have an HP Mini 110. I have turned off the

It seems that your laptop dc jack is loose. You may repair it or replace it.

http://www.chargerbuy.com/replacement-hp-mini-110-ac-adapter-19v-30w.html

Look into your Bios or System Setup to see if there are any settings that control the battery.

Did you purchase the battery off ebay by searching for the computer's make and model or by the model numbers on the battery?

The best way to search is by the computer's make and model. For example on ebay you should just type: HP Mini 110 Battery or HP Mini 110-1012NR Battery. This way you will be sure to get a battery that is specifically for your system.

Removing the Damaged Keyboard
1. Enusre the laptop is fully powered off, unplugged laptop ac adapter from the wall, and the battery taken out.
2. Turn the laptop over. On some models icons indicating which screws are attached to the keyboard for HP Mini 110-3130sv displayed. If not, you may have to "eyeball" it if you can't find a breakdown for your model online.
3. Remove those screws with a T-8 or Phillips screwdriver.
4. Turn the laptop back over and open it up. Check and see if the HP laptop keyboard is tucked under any plastic pieces. If so, find if those plastic pieces are screwed into anything, and unfasten them as well. If not, it probably uses clamps that can easily be removed.
5. Remove the plastic pieces carefully with a toothpick or plastic pick if there is any in the way.
6. Unscrew any screws at the top (if necessary) and remove the keyboard itself from top to bottom. You'll notice that the keyboard is connected with a thin, but wide, ribbon cable to the system board at the bottom.
7. Take that same pick and lift the plastic connectors that hold in this data cable in place.
8. Carefully remove the data cable. Now the whole HP Mini 110-3130sv replacement keyboard should be free.
Replacing the keyboard.
1. Take the new keyboard out of the plastic, and slip the data cable back in between the plastic connectors on the system board. Make sure it's all the way in.
2. Use the pick to push the plastic connectors back into place, and make sure it's holding the data cable in.
3. Slip the keyboard itself into place, from bottom to top. Make sure the screw holes or clamps line up at the top.
4. Refasten the keyboard in place at the top.
5. If you had to remove any plastic pieces, carefully snap them back in and replace any screws you had to remove.
6. Turn the laptop over and replace all of the keyboard screws.
7. Finally, put the battery back in and power on the laptop. If all has gone well, the HP Mini 110-3130sv Keyboard should be functioning like brand new.

Remove the cmos battery for 5 - 10 minutes. That will reset all data in the bios.

First try Hard Reset:

1. unplug ac adapter then remove the battery.
2. press and hold the power button for a minute.
3. put the battery back, plug in ac adapter.
4. turn on the mini .

if it does not work, see if light glows on the power jack.

then remove and reinstall the hard drive.

see if it works .

Remove battery, open the access panel on the bottom carefully remove the ram sticks. Put them safely on a piece of paper so that a static charge doesn't ruin them, also touch something metal before you try and remove. If your computer doesn't beep at all when you power it back on your CPU, GPU, or MB are bad. If it beeps then there is still hope.

Again install the operating system

Possibilities are inmense, first make sure that your power supply is working, remember that its what charge the whole thing up. if power supply is not giving the right voltage the the lithium battery is not charging. You may have to take it to your local computer shop yo check it

Your operating system is corrupted - reinstall your operating system or take it to a HP service agent and get it reimaged

remove cmoc battery from motherboard for a minute then connect it again password will remove
otherwise change bios chip is the only solution