Catastrophe, your Android smartphone refuses to charge and has decided to go on strike? Difficult in these conditions not to give in to panic. Here are 5 tips to solve this problem without using the after-sales service of your smartphone manufacturer..
Repair your phone yourself
A breakdown on a smartphone is always experienced as a tragedy. Repairs on this type of device are relatively expensive. Added to this is the fear of being deprived of a telephone for several days (no SMS, no Google search, no music, Facebook, Maps, calendar, video, etc.).
Obviously nothing prevents us from running to a store to buy a new mobile. But unless you choose an entry-level smarpthone for less than 150 euros, this type of purchase requires a certain budget..
The simplest and most economical solution is to do the repair yourself. And contrary to what many people think, this requires no special technical knowledge. The power outages unlike a software failure to meet a certain logic.
Change USB cable
Before anything else, start checking your wall outlet or the power strip used to charge your smartphone. 
It may sound silly but many failures can come from faulty electrical equipment. Take a test by plugging your smartphone into another electrical outlet..
If your device is still not charging, the problem may be with the USB cable used to charge it. 
These prove to be very fragile and the quality of certain connectors sometimes leaves something to be desired.
Try charging your smartphone using a different cable or with a different charger. In most cases, this simple test will be enough to diagnose the failure. If you don't have others, try charging another device with this cable and see what happens.
Check the battery
If your smartphone has a removable battery , remove the back cover following the instructions given in the user manual. Then do a detailed inspection of your battery and see if it is damaged, bulged or stained.
If in doubt, immediately replace it, preferably choosing a model from the manufacturer of your smartphone. We do not recommend the use of low-end batteries of questionable origin.
A lithium battery can catch fire. Cases are relatively rare but they do exist. So be extremely careful. There are many stories on the net of people whose phones caught fire.
Finally, last point, don't forget that the lithium-ion electric accumulators built into our phones do not have an indefinite lifespan. Once the maximum number of cycles has been exceeded (generally between 500 and 1000 depending on the model), the batteries are unable to supply the devices with electricity. 
If the recharging time of your smartphone has reduced considerably in the past few days, there is a good chance that your battery is used up .
Clean the USB socket on your mobile
Smartphones spend most of their time at the bottom of a pocket or bag. It often happens that dirt, dust or even a lint can slip into the USB connector. This intruder prevents the connection from being made correctly.
Then turn off your smartphone, remove the battery and start a little cleaning. Please note, the USB connectors of a smartphone are extremely fragile. Take an air bomb specially designed for cleaning computer equipment. The latter will allow you to easily remove all dirt without damaging your device.
All of these tips should help you resolve your reloading issues. If you know of other tips, feel free to post them in the comments.