Chosen Solution

When I connect my iPhone to the charging cable, it vibrates and says something like, “The accessory may not be certified.” I’ve tried a lot of cables, including original Apple cables, but the results are the same. I’ve also tried to put my motherboard into another working case, but it does the same thing. Do you know which IC can be broken on my logic board? Thank you.

This is a common issue when it comes to the lightning charger. These are a lot of solutions that I got from here

Hello, experienced the same problem for a month until I finally decided to take a push pin…Yes, a push pin and very carefully inserted it into my phones charging port and to my surprise..out came a lot of pocket lint from carrying it in my pocket!! Very easy process of just “picking” out the lint which was not allowing my charger to fully insert and make a proper connection. After doing this, my charger fit snuggly into the port and just like that…CHARGING AGAIN!! Try this simple, inexpensive fix and you all may be pleasantly surprised!!

Here’s what worked for me which I found via an iPhone forum. Plug your charger in, when you get the message “this accessory…” Hold your finger(with pressure) on the dismiss button and pull your charger out. While still applying pressure to the screen, plug your charger back in and it should work.

Hello , this is how is this issue today and worked for me - Source- 5 ways to fix accessory may not be supported error 1- clean the charging port of your phone carefully using brush Or toothpick 2- try branded cable instead of local cable 3- dismiss the error while charging and wait for sometime at last you can also make sure your charger contact is not broken Or Mismatched Use a pin to align the charging metals connectors See if this seems to be helpful

The usual problem with this is that the cable you’re using isn’t a genuine apple cable but as you’ve said you have tried the original then the only other explanation is that it is the charging block itself that is the problem. After a while with iPhone 5’s lightening charging block is that the gold plates inside start to score and once they are marked they are damaged so they will not function as how it used to do. Only suggestion is that you consider replacing the charging port that you can purchase from here and follow some simple steps also provided by iFixit. Hope this helped. Part: iPhone 5 Lightning Connector and Headphone Jack Tutorial: iPhone 5 Lightning Connector and Headphone Jack Replacement

I had this problem and tried every fix including; reset, cleaning, different chargers, soft re boot, airplane mode etc. It was driving me mad! Apple telephone support couldn’t help and it took loads of attempts to get it to charge until I found my own solution: Plug in your charger to the phone and power supply ‘Ok’ the annoying message - ‘accessory may not be supported’ Turn the iPhone off while leaving the charger plugged in and switched on When you turn your phone back on having left it for a while the charge will have increased. Turn it back off and leave it for a while longer and it will be fully charged This has now worked consistently several times - happy days!! Not perfect as you have to switch your phone off but, it works!

Try replacing the charging port. This was probably mentioned somewere in the 99 other post Just wanted to make it an even 100 answers

I had this problem, and it was my a lack of power from the power outlet. I try a different one with my iPad A/C and it worked without a problem. Give it a shot.

If you get an error message on the charger, this usually means that the iPhone does not see the supply voltage and charging current it needs. So there is something wrong in the chain from; wall charger - lightning cable - iPhone connector Procedure to follow:

  1. First check metal contacts on all . Should be shiny gold. If not shiny: clean with soft plastic pin or wooden tooth pick (no metal pins!)
  2. Non-Apple cables may have too thin metal wires, which restricts the current flow. Solution: Buy an Apple certified one.
  3. Non-Apple chargers may have too low supply voltage, which restricts charging power. Solution: Buy an Apple certified one.
  4. Non-Apple chargers may have too low supply current, which restricts charging power. Solution: Buy an Apple certified one.
  5. Cable may have broken metal wires inside (e.g. due to rough treatment) Solution: Buy a new Apple certified one.
  • This should solve the charging problem.

Found this on another forum. Try putting the phone into airplane mode first and then charging. It worked for me.

Unplug the USB charger from wall plug and charger cable. Unplug the charger cable from your phone too. Plug everything back and that should do the trick. It just worked for me.

I just cleaned the charger tip and all was fine

This sounds the effects of a cheap lightning cable. Using a USB cable that is made of the highest quality materials will prevent the error message from appearing and guarantee that you’ll always have a good cable handy.

I have changed my charging port twice. Tried a lot of different cables. I finally discovered,If I leave my phone laying for about 20 minuets, plug in the charger and it charges. Either that or charge it with the phone turned off. Its a pain in the ___ but my Iphone 6 is 9 months old (Refurbished). Update (09/21/2016) I replaced my logic board with one from a different phone just to prove its the u2 chip. Then but the original one back now everything works great. Did something need to be reset? Was there a bad connection somewhere? I’m not sure why. But I’m just glad to have my phone back.

I can say with near 100% certainty at this point that the problem is directly related to how well the power source maintains a solid 5.0 volts when connected to your phone. A few 1/10ths of a volt more is tolerable, but less is definitely not. So why is this “voltage” problem happening? Well unless you’re a fairly “techie” person, you can almost skip this next paragraph because its a case where knowing “why” is about as helpful as a sick patient asking “why” he/she has the disease causing their pain. Unless you’re a doctor with some “fixes”, knowing “why” doesn’t help fix anything. But for some i t might. The “why” of it comes down one of two causes. First, the voltage coming out of various USB based 5V sources ( even from some decent chargers) may be slightly “off”, and second, even when the voltage is perfectly correct, it may be a lot lower at the other end of the charging cable! To test it both of these conditions, you literally have to sacrifice a cable by stripping some of the cable covering near the phone side, then striping small segments of insulation from a few of the inside wires (there are usually 4 in any USB cable), ultimately isolating the wires containing the 5V and 0V common. If they are color coded RED should be positive (+) and BLACK Negative (-), but sadly all of them aren’t color coded. Now once this is done, you’d have to carefully measure that voltage with a multi meter, preferably a digital one (DVM). Without the phone connected, you should measure anywhere from 5.0 to perhaps 5.3V tops. One I have here that often gives me the problem was found to output 5.25V. Great! In fact if a charger didn’t put out good voltage with no phone plugged in, then its total garbage and is always going to be a problem! So assuming you have decent voltage at “no load” (no phone)", the next thing to do is plug in the phone while watching that voltage. Oh now its not so good right? The one I had dipped down to about 4.3 volts momentarily and recovered to about 4.45. (If you look on faster measuring device like an oscilloscope, you’ll likely see the voltage dip even worse!) Why? Two reasons. First, the voltage regulation in the supply is not so good (poor circuitry) and Second, some voltage is always lost because of the relatively high current being drawn over VERY thin wires. So both the charger AND the cable that came with it are each partially at fault. Trust me… if you were to use a technicians bench power supply and adjusted it so that at the point you are measuring (near the phone side of the wire) is actually 5Volts, not only will you NEVER see “device not supported”, but your phone will charge a lot quicker! So is 4.5V enough? Well consider that the Lithium cell in your phone, at full charge, should reach 4.2 volts. Realizing this, you can see where 4.5V is barely adequate, and something around 4.3, even for a short instant, is probably going to trigger an alert inside the ‘smarts" of the “smart” phone. At best it will charge slower than it should, and at worst it will make the dumb phone think “hey this isn’t a charger… it can’t be… the voltage is WRONG too low! So I guess it must be some other device, and since I can’t talk to it, its not a supported device!). It then internally disables the charging circuit, because wanting to protect it self from the opposite of charging… DISCHARGING. Could apple fix this? I’m sure they are aware. But they are treading a fine line! Now its already been mentioned that a dirty or poor contact can cause the problem. If you think of an old fashioned flashlight (not so much the LED kind), you probably have seen where as the battery gets weaker, the light output of the flashlight can sometimes be restored a little by banging the flashlight in your hand (the great American ‘fix-all” :-) ). Well this is the same reason why it is often helpful to keep the contacts clean. But electrically, the best thing to do is often difficult. If you’re dealing with a newer I-phone which has a standard USB plug on both ends, you may be able to keep your inexpensive charger and obtain a better cable. Look for the words “high current” or current ratings of “2 amps”. If its an older I-phone with the “apple only” connector, finding a better cable will be a challenge. Especially with the way search engines “ignore” search terms it can’t specifically find. The problem is that a higher current cable means thicker wires, and everybody wants a thin “spaghetti” like wire. If you can find one with a thicker wire, there’s a good chance you’ll have a fix. And definitely look for the shortest wore possible, since the voltage drop decreases with shorter wire length. If you’re really technically capable, you should be able to find some much thicker USB cables meant for something other than an I-phone. If you keep the USB side and cut off the other side, it is definitely possible cut off the phone side allowing a couple inches of wire, and splicing the two together. Of course you’d have to solder, re-insulate, and cover the whole splice with heat shrink tubing, and this method is obviously not for anyone who doesn’t know which end of a soldering iron to hold. But doing this will likely bring up the voltage to the phone by as much as a volt, and will definitely solve your problem. Again, if you’re a DIY electrical person, you can build a variable DC power supply good to about 1.5 amps or better, with a USB port, and then following the measurement procedures mentioned earlier, set it to whatever voltage is necessary (with the same cable) to get the voltage at the phone end up to 5.0V. You’re final charger will probably not be as small or convenient as the “itsy bitsy” ones you can buy dirt cheap, but it will work well and charge your phone a heck of a lot faster! Unless such a project is within your grasp, you’re going to have to pay a little more for a charger that has good reviews and has been shown to be actually rated for high current and fast charging, has specs to prove it, and has specs by a believable source (You know how much outright BS is published by “no-name” companies from ‘certain" countries). This and following all reasonable procedures o keep the contacts clean in your i-phone port will help. Sometimes just plugging them together and apart several times will help. Good luck everyone!

Also tip* if you an older phone, don’t update to new IOS, because it created a problem for me.

  1. plug your charger into the wall
  2. turn of your phone
  3. as its turning off before u see the spinning circle plug it in
  4. wait for it to charge
  5. turn the phone on and unplug charger

Hi 1, Plug phone into charger 2. Dismiss notification about accessory not supported 3. Turn on airplane mode 4. Turn off phone for 2 mins (leave plugged in) 5. Turn phone on and turn airplane mode off This fixes it! :)

I had this problem since updating, and it didn’t dawn on me that since I had it plugged into my laptop, it was my antivirus that was disconnecting the feed. Plugging into the charger worked fine. I had to turn off my Kaspersky so I could sync the phone. (I’ll fix my Kaspersky when I get time to stop this from happening).

I followed these threads and tried a lot of what was recommended to no avail, and finally took the issue to the Genius Bar at Apple this week, before I lost complete power on my iPhone and iPad. Turns out the issue was with the cable itself, and because the cord did not show wear and tear, Apple replaced it for free. End of story, and it’s been working every since with no issues.

well it’s most likely the cable !

I hope this helps someone. What I did to get mine to charge after having this issue was turn off the wifi, put the phone on airplane mode, and then turn off my phone. After restarting give it a couple minutes, and then plug your charger in.

If you have an iOS update pending you’ll get this message. I’m sure it would take Apple minutes to crate a popup that states “you need to update your phone before you can transfer files” but for some reason they haven’t bothered. We went nuts for an hour trying to get an urgent transfer off the phone onto multiple devices only to get this message. Everything worked fine once we just updated the phone.

You may get an “accessory not supported” alert if you’re using counterfeit accessories. To prevent this, make sure that the charging cable and accessories you’re using to charge your iPhone are MFi-certified, meaning they were made according to Apple’s design standards. MFi means Made for iPhone, iPad, or iPad Regards, Will