Lenovo ideapad a1107 won't turn on

I don't know what model or version of Android your using but here is a link to steps to factory default the device. These step WILL erase everything on the tablet.

https://forums.lenovo.com/t5/Other-Android-based-Tablets-and/A1-and-A1107-How-to-Unbrick-Or-Fix-By-Performing-a-Full-Factory/ta-p/841499?AID=10499647&CJURL=http%3A%2F%2Fforums.lenovo.com%2Ft5%2FIdeaPad-Slate-Tablets-Knowledge%2FA1-and-A1107-Unbrick-fix-full-factory-restore%2Fta-p%2F841499&NID=CJ&PID=5141650&PUBNAME=Skimlinks&SID=skim1629X685119X6b4cea224e1c0602abcdff16e3056c82

Have you tryed downloding flash player???

Is the cord and Battery the EXACT same power spec? If so, it may be the AC jack in the Laptop has been damaged due to pulling on the cord while plugged in, broken connection.

For this kind of issue, please follow up the following steps to check:

1.confirm your Lenovo IdeaPad S10 ac adapter and battery connect the laptop normally.Maybe the bad connect lead to this problem. If there are no lights when you turn on laptop, one of possible reason is that your adapter is malfunction.

2.the second possible cause is laptop dc jack failure. If the dc jack is broken or loose, you are required to replace it or repair it.

3.Another possible reason is that there is something wrong with laptop motherboard. For this situation, it includes two kinds of possibility,a failure in an electronic circuit and BGA malfunction.

For more detailed reasons and solutions, please have a look at the following article:
http://www.ifitjams.com/lappower.htm

lenovo a1107 charging cnector ways

The battery might be nearing the end of it's useful life and needs to be replaced. The battery only lasts for so long then it has to be replaced.

Buy a battery on ebay base on your computer's Make and model, not the model of the battery.

Click on link or copy and paste in your browser: http://www.manualowl.com

try removing the battery and removing the adaptor press and hold down the power button for 5-10 seconds then let got this will power drain your system board noy turn the system on using the battery only without any adaptors to charge or power the system, try turning the system on if the system turnes on leave it turned on for a couple of hours then conenct your sysem adaptor monitor if the battery light and the battery indicator on the lower right of the screen in windows woll indicate that the system is chargin if it is then I believe everything should be fine the blue indicator is for your system if it is blue then your system is turned on and has power if it turned orange and blnking then the battery will be more likely be almost out of juice or may need charging.

the battery of your ideapad is already defective, try to change battery

Based on your description of the issues you may be having a DC jack issue. I would suggest to insert the ac adapter and wiggle it around see if there any indicator of it try to charge the laptop. But in most cases that a laptop does not power on its due to the jack.