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HOW TO FIX A PHONE THAT WON'T CHARGE PROPERLY(1)

If your battery isn't charging properly, don't immediately assume your phone charger or your battery is broken. Based on personal experience, the problem – and solution – may be much simpler than you think. If your phone or tablet isn't charging properly or at all, take a look at these 12 ways to fix a phone that won't charge.

Why a phone doesn't charge
The problem occurs in various degrees. Either your phone won't charge at all when it is plugged in, or it will only charge very slowly (sometimes barely faster than it is discharging). It’s a very common complaint, so here are a few solutions.
Most charging problems are related to your USB cable or charger, or even the port itself.

1. Do-It-Yourself USB port fix
The quickest, easiest, and often most successful solution, is to do a little DIY repair on your actual hardware. The problem is often that the metallic surfaces inside the USB port and the microUSB charger are not making good contact, either through a manufacturing defect or because of the continual plugging and unplugging of the charging cable.

All you need to do is shut down your device, remove the battery if possible and use something small, such as a toothpick, to 'lever up' the little tab inside the USB port on your smartphone or tablet. Do so very carefully and gently, then reinsert your battery and plug it in again. Nine times out of 10 this is all that is required.
Check the 'tab' inside your device's USB port – the cable may not be making contact properly.



2.  Remove lint, candy and dust
Do you keep your phone in the pocket of your jeans? If so, lint could be the culprit: we've lost track of the number of times the reason for unreliable USB charging turned out to be lint from the pocket of our Levis.

We've seen phones with charging ports choked with chocolate after they were chucked in a handbag alongside a packet of sweets. A can of compressed air can blow out the offending irritants and get your USB connection back to normal.
Clear any gunk that might be clogging your phone's ports.
3. Switch cables
The flimsiest part of a charger is the cable, not the adapter that plugs into the wall socket. Apple users are particularly vulnerable here because Apple's proprietary (and expensive) Lightning cables appear to have a life expectancy of around 15 minutes. But all cables have a tough life, and endless flexing and curling can take its toll. Substituting a random USB cable for the one that came with your phone is another shortcut to an unenjoyable charging experience.

The easiest way to diagnose a faulty cable is to try a different one and see if that works properly with your device. If it does, you know the original cable was at fault. If it doesn't, that's another potential villain we've ruled out.
Cables are easily damaged. Apple Lightning ones especially so.

4. Diagnose a dodgy adapter
If the cable doesn't seem to be the problem, check the wall plug adapter – especially if it's one where the charging cable can be removed. We've encountered issues in multiple chargers where the USB port becomes a little loose after endlessly plugging in and unplugging the cable.

Also check whether the same charger/cable combination works on a different device because this will help you eliminate the possibility that it is your device at fault, rather than the cable or charger. You should also make sure there isn't a problem with your wall socket.


5. Remember – safety first
Don't charge your phone near water or in excessively hot or humid conditions. Also, if you're replacing a charger or cable, be wary: the internet is stuffed with reports of cheap third-party chargers that went bang in the middle of the night or turned smartphones into toast. As with any electrical equipment, make sure that anything you buy complies with all the relevant safety standards.

Charging a battery does generate heat and, if a smartphone is in a tight space – like under a pillow or inside a case – there is a chance it could become too hot. Essentially, if you're going to charge your phone overnight, just make sure it's out in a safe place. 


If you are going to replace your battery, try to purchase an official one.


6. Replace the battery
Batteries don't last forever, and after a couple of years they start to struggle to hold a charge. The more often you discharge and recharge them, the sooner they'll need replacing. If your battery's busted after just six months, it's probably faulty and you should make a warranty claim for a free replacement, but if the battery's older than two years, it's probably approaching the end of its lifespan.

Some defective batteries are easy to spot because they start to bulge or leak fluid. If nothing like that is obvious from the outside, remove your device's cover and inspect the battery (if you can; some devices have sealed battery compartments).

If the cover doesn't come off, you could try laying the device on its back and spinning it. A bulging battery will deform the case – you might not be able to see this bulge, but it might be enough to allow your phone to spin. If you suspect your battery might be swollen or leaking, get your phone to a repair shop and buy a reputable replacement.




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