Lenovo A2107A: Do not start. power off for last 3 days!

you must be late some of the ways that you have on your tablet go in anything you do not want dail ate it and get rid of it that is the only way

Try a factory reset, if can. Else you should take it to service
https://www.youtube.com/watch?v=0uvU-bscH2g

Please change Tha lenovo Battery

Check your charger. If you don't have an electronic tester, you should ask for service. Also might diagnose battery issue

First, remove the (smaller) top part of the back cover. This is done by laying the device screen side down, putting your palms on the larger part of the back cover and using your fingers to push up the smaller part. It will not damage the camera- the camera cover is part of the back cover. The sd slot is on the left.

Go to the control panel, and look for the Language or Location category. If there is a couple of letters in the bottom right of your screen, near the clock. Right click on it and change the language from there.

you have to install standard android developpement tools (SDK,ADT) ad eclipse (Juno latest release). Download SDK

Push and hold the on/off switch. OR, Pull the AC plug and allow the battery to drain. If it is under warranty, return it or replace.

Try here: http://download.lenovo.com/consumer/mobiles_pub/ideatab_a2107a_ug/data/EN/index.html OR HERE: http://support.lenovo.com/en_US/downloads/detail.page?DocID=UM015642

1) Replace your laptop's battery.

2) Run Reginout Scan.

thank you....