"Charging is not supported with this Accessory"

"Charging is not supported with this Accessory" or "This accessory is not made to work with iPhone"

This could mean one of two things:

1. You plugged your iPhone into an accessory that Apple has decided to no longer support with your current device. If the accessory doesn't send appropriate authentication code to the iPhone, or the code is not on the 'approved' list, it will display "Charging is not supported with this accessory". How to resolve this? You can't, yet, but there are some options for getting video out to other devices that are no longer supported using a program called ReSupported by Phoenix-Dev.
2. Your device (iPhone/iPod/iTouch) has damage to it and flashes the "Charging is not supported with this accessory" over and over. This is usually caused by impact damage or fluid/ water damage to the bottom dock and can be fixed. This is caused by corrosion that builds due to moisture and spreads like a mold along copper circuitry, which when contact is made between two points that aren't intended to, the device thinks that there is an accessory is plugged into the bottom dock. If the 'accessory' doesn't send an authentication code (obviously it won't because it's just corrosion), the device rejects it as an approved device, but still thinks something is plugged in, thus the persistent "Charging is not supported with this accessory" or "This accessory is not made to work with iPhone"
   

Got Battery/Charging Problems?

Sometimes battery life issues are actually due to settings. Here are a few tips and tricks to dramatically increase the battery life of your iPhone. If you have jailbroken your phone, research an application installed through Cydia called 'SBSETTINGS'. This program will allow you to easily enable/disable any of this settings with a simple swipe across the title bar, no matter what you are doing or using your phone for. Some of these options might require an additional plugin for SBSETTINGS, but they are all extremely useful, especially if you wish to enable/disable these features with tremendous ease!

* Turn Off PUSH Turning off PUSH will dramatically increase the battery life of your phone. While it is a great feature for some, most people don't need the features of PUSH necessarily. If you only use PUSH for email, we recommend that you disable push but enable fetching to checking your email every 15-30-60 minutes. SETTINGS > MAIL, CONTACTS, CALENDAR > FETCH. While 'fetch' uses less power to update, the more times your phone refreshes in a day, the quicker your power can be used up, but it is significantly less than utilizing FETCH.

* Turn Off BlueTooth Turning off BLUETOOTH will also help increase the battery life of your phone. If you don't use bluetooth frequently, turn it off when not in use. If you don't consistently use a bluetooth headset, we recommend that you disable this in your iPhone settings. SETTINGS > GENERAL > BLUETOOTH > OFF.

* Turn Off Wifi Turning off WI-FI will help increase the battery life of your phone because your phone will #1 Stop looking for new WI-FI connections if not connected, and #2 have your phone utilize 3G instead. While it might be slower to use 3G/EDGE, your phone uses less power to use these than wifi.

* Turn Off 3G 3G is a wonderful feature and increases your speed exponentially at times when perusing the internet. However, to utilize this faster network, your phone requires more power usage for such usage. If you disable 3G you can dramatically increase the life of your battery, which is great for times when you battery life is low and you need to preserve as much charge as possible. SETTINGS > GENERAL > NETWORK > ENABLE 3G > OFF. Note: Some T-Mobile users do not have 3G access in your home location. If you do not, you should disable this feature.

* If your battery life still is less than acceptable, we can replace your battery with an original battery. As of yet, there are no 'better' batteries out there than what was designed for the phone, i.e. I can't 'upgrade' your battery until someone designs a better one. If you happen to find one let me know!