Last week, while trying to charge my iPhone, the device frequently displayed ‘this accessory may not be supported’ error. At first, it didn’t make any sense because I was using the same accessories which I have received along with the phone. Then I decided to dig further into the issue and this has brought up some interesting things which might lead to this issue.
After using the iPhone for a few months you might begin to notice that your phone does not charge as effectively and efficiently as it used to previously. A quick Google search about this issue showed that this was one of the most common problems and iPhone user would run into.
Below I have specified a few reasons why this error might occur and solutions to solve it.
Uncertified iPhone Chargers
Sometimes the actual reason behind the accessory may not be supported the issue can be linked to the usage of uncertified lightning connector chargers. Every iPhone user gets a stock charger and data cable along with the new phone. Over time the stock cable and charger wear out due to constant use and you might need to replace them. As a user you have two options for this; either purchase an official Apple certified replacement lightning cable or go with non-Apple cable.
The official replacement cable is costly and so many people tend to purchase a knockoff cable to save money. Initially the fake lightning cable might work but the same unsupported accessory error shows up after a few months of usage. This is because these uncertified cables are not as good as the official product in terms of quality.
Dirt in the Port
Another simple reason why you might be getting “this accessory may not be supported error” is because of the data ports being dirty. As an iPhone user you might have noticed that over time dirt gets accumulated in the device’s data port. Also if you carry the device in your pocket there are chances lint getting accumulated in the port.
This dirt and lint may prevent the contact between the pins in the data port and the lightning cable. The solution for this issue is pretty simple. All you need to do is blow air into the data port and then clean it with a toothpick or a hairpin. Just be careful while cleaning because the pins might get damaged if you do it too hard. Once you are done using the toothpick you might want to blow hard into the data port to bring out all the scraped dirt and lint.
Lightning Cable Issues
Due to constant usage, the data cable pin might also be a reason for the unsupported accessory error. Here are some of the common data cable related issues and tips to fix them.
Corroded Contact Pins
Over time you might notice that the head of the lightning cable gets accumulated by gunk and dirt thus preventing contact with the data port. This corrosion might occur when the data cable pin is exposed to moisture for longer periods.
You can fix the lightning cable pin by scraping off the gunk with a toothpick and then cleaning the pin head with mild alcohol and a cloth.
Sometimes the connection between the data cable and the pin gets damaged and the wires get detached from the pin head. If you do not intend to buy a new data cable then you can always repair it by yourself.
Note: Original Apple data cable pin cannot be repaired because it has a metal shield over the connection points. This repair can only be performed on the knockoff / unofficial cables.
You can follow this guide from ifixit to repair the disconnected wires but I strongly advice you to stay away from doing it. If you are inexperienced with soldering and other such stuff then you are better off purchasing a new cable. Just save yourself the hassle!
Switch to Airplane Mode
Once you connect the iPhone to the charging cable, “This accessory may not be supported” error will show up. You need to dismiss this error and then switch the device to Airplane Mode.
Then switch OFF your device. Wait for 1-2 minutes before turning it ON again. If done correctly, you wouldn’t get the error message this time around!
Finally, you can try out the above mentioned fixes and hopefully bypass the error and solve the unsupported accessory issue. If the problem persists then you can visit the nearest Apple store and get things sorted out directly.
Also read this article for tips to boost iPhone speaker volume.