I have a toshiba 7inch tablet which has stopped charging it has no light on the tablet when its plugged in and switched on

what usually cause the problem of most tagital tablet not turning on
is when the battery is over charged.the maximum time to charge a battery is six hours when bought new.if you dont it will pose some difficulties later.
there are three options
1. get another battery
2. get a booster to boost the battery
3.you also use LED by pinning its cable to the battery,this will take some time.then wait until the light on the LED goes off.it normally takes 3 days before the LED light turns off.
if you have taken these steps the next thing to do is to put the battery back on your tablet and connect it to a power source i mean electric current and see if it will respond to charging.if it works, then you got your tablet back,but if not please get a new battery.thanks

There are only so many milliamperes available to the whole USB bus on any computer. Having too many devices connected will cause not enough power to charge your tablet.
Try a wall adapter.

Either the charger or battery is defective.

Sometimes you have to unplug it first and then the on button works. It's a bug.

when i plug it into the wall it wont charge

Your tablet maybe faulty. I suggest you take it back to the shop where you purchased it for a warranty replacement or repair. If you try to fix it yourself you may void your warranty.

this happened to me, it needs charging make sure the lead has the blackberry symbol facing up....

this happened to me, it needs charging, make sure the blackberry symbol on the lead is facing up, putting it in upside down moves the little tab inside the housing stopping you from charging properly, if it is a bit loose realign the tab with a thin nail file carefully just a touch then push the lead in symbol side up and switch on give it time it should charge..

Try removing the battery and see if it will boot without it
Then check the caharger, charging light should be green and steady on the charger itself
If it is flickering, it meand power is not making a circuit, test charger jack with a DC volt multimeter with one probe to the outer side (earth) and one on the inner (positive). If this is ok, check the charging socket is not loose (if it is, will need replacing).

After that, suspect the power strip or charging / powerboard is dead on the motherboard

Toshiba Satellite R15-S822 Tablet: Battery is charged and operational power supply (charging light is on) is plugged into power port on back side of laptop: Problem is sliding "power on" switch does not start laptop - no sign of any electrical activity...