IdeaTab A2107A How do I install Juno Browser on this tablet

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

dondu

If you ask "how to disassemble, repair, and reassemble" it, you should not be trying to do it -- take it to the nearest Authorized Repair depot. Check Lenovo's web-site to find the location of that depot.

lenovo IdeaTab A1000 - Wipe Data / Factory Reset (Soft / Hard Reset)
https://www.youtube.com/watch?v=RBXFJP7BQQk
lenovo IdeaTab A1000 - Power on and Charging Failure Issue.
https://www.youtube.com/watch?v=03mhJk-of5Y

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.

Should diagnose charger and battery. If you don't have the electronic tester, should seek professional assistance

i forget my lenovo password S2109a

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.

If you got a new laptop running Windows Vista you will have to contact Juno for updated Vista software.