To determine if your Nikon D5100 is defective, you should first identify the specific issue you are experiencing. If you are facing consistent problems with the camera's performance or functionality that are not resolved by troubleshooting or basic maintenance, it is possible that there may be a defect. In such cases, it is recommended to contact Nikon customer support or take the camera to an authorized service center for further evaluation and potential repair. **

The savings bank may be blocking online banking customers for security reasons. They may have detected suspicious activity on certain accounts and are taking precautionary measures to protect their customers' funds and personal information. Additionally, the bank may be conducting routine maintenance or updates to their online banking system, temporarily restricting access to ensure a smooth and secure user experience once the maintenance is complete. It is also possible that there may be technical issues or glitches with the online banking platform that need to be resolved before customers can access their accounts again. **

Savings bank transactions can typically be deleted by accessing the account statement or transaction history on the bank's online portal or mobile app. From there, you can select the specific transaction you wish to delete and look for an option to remove or delete it. If you are unable to delete the transaction yourself, you can contact your bank's customer service for assistance in removing the transaction from your account history. It's important to note that some transactions may not be able to be deleted, especially if they are already processed or finalized. **

You can sell your Nikon D5100 by listing it on online marketplaces such as eBay, Craigslist, or Facebook Marketplace. Make sure to take high-quality photos of the camera and provide a detailed description of its condition, features, and any accessories included. You can also consider selling it to a camera store or through a camera equipment buy/sell/trade group. Be sure to research the market value of the camera to set a competitive price and be prepared to negotiate with potential buyers. **

To use online banking with your savings account, you will first need to set up online banking with your bank. This usually involves creating an online account and linking your savings account to it. Once your account is set up, you can access your savings account online to check your balance, transfer funds, set up automatic transfers, and even pay bills. Online banking provides a convenient way to manage your savings account from anywhere with an internet connection. **

The Nikon D5100 can be charged internally by using the camera's USB port to connect it to a power source, such as a computer or a USB wall charger. The camera must be turned off during charging, and it is recommended to use the original Nikon USB cable for optimal charging performance. Additionally, the camera can also be charged using an optional AC adapter that is compatible with the camera's power requirements. **

The Nikon D5100 is suitable for a wide range of lenses, as it features a Nikon F lens mount. This means it is compatible with Nikon's extensive lineup of F-mount lenses, including both DX and FX lenses. The camera is particularly well-suited for portrait, landscape, and general photography, making it a versatile choice for photographers looking to explore different genres. Additionally, the D5100's 16.2-megapixel sensor provides good image quality, allowing for sharp and detailed photos when paired with high-quality lenses. **

Without more specific information or context, it is impossible to definitively determine if the autofocus of the Nikon D5100 is broken. Autofocus issues can be caused by a variety of factors such as settings, lens compatibility, or mechanical problems. It is recommended to troubleshoot the issue by checking settings, trying different lenses, and consulting the camera manual or a professional technician for further assistance. **