Hi dear friends, I am having trouble updating my iPhone and was wondering if you could provide me with some assistance. I am currently using an iPhone 7 and it is running on iOS 14. However, I would like to update to the latest version of iOS but I am not sure how to do it. I have tried going into the settings but I am not able to find the option to update the iOS. I have also tried searching online but I am still unsure of the proper steps. Can you please provide detailed instructions with images or videos on how to update my iPhone and also explain the steps for backing up my data before updating and any potential risks or issues that I might face during the update process. Thank you.