1. Slide the Notifications panel open, and then tap Settings. 2. Tap About > Software updates > Check now.

Here are some battery saving tips: 1. Turn off the display when you're not using it. 2. Reduce screen brightness under your specific visual habit 3. Turn off wireless connections such as the data connection, Wi-Fi, and Bluetooth when not in use. 4. Check battery usage in Settings > Power and tap applications not in use to stop them accordingly.

The space shown on the box and in advertisements is the total storage capacity of the phone, and in fact does exist in the phone. The total storage space is divided into internal storage and phone storage, and part of the space is being used to make sure your phone is running at optimal performance levels.

After signing in to your Dropbox account (or creating a new account) on HTC One, you will receive an email from Dropbox, asking you to complete the Get Started guide to claim your extra 23 GB free Dropbox storage. Click the link in the email and complete the steps in the Get Started guide.

The easiest way is to store your contacts in your Google Account. This way, you can just sign in to your Google Account on your new phone and your contacts will be synced to your phone.

There are also other ways for transferring contacts:

1. Sync with your computer: Sync the contacts from your old phone to your computer, and then use HTC Sync or HTC Sync Manager to sync your phone with your computer's Microsoft Outlook, Outlook Express or Windows Contacts. 2. Social network accounts: Log in to your favorite social networks to import contact information from them. 3. SIM card: Import all your SIM contacts to your phone. 4. Microsoft Exchange ActiveSync: Sync your work contacts from the Microsoft Exchange ActiveSync Server in your workplace. 5. Transfer: Use the Transfer app to transfer not only your contacts, but also calendar events and text messages from your old phone to your phone.

1. Slide the Notifications panel open, and then tap Settings > Personalize. 2. On the Display tab, tap Wallpaper. 3. Tap Gallery and choose from your photos. Or choose from HTC wallpapers. 4. Tap Save or Apply.

Keep your phone away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat. Also avoid wet areas when using the phone.

You can do the following to check:

1. Check the network specs of your phone in the HTC website. (Go to the website of the country where you bought the phone.) 2. Check the supported network band in the country where you will be traveling. 3. Check if cross-country roaming has been activated by your mobile operator.

When your phone finds contacts that can be merged, you’ll see a link notification when you open the People app. 1. On the People tab, tap the Link suggestion notification when available. You'll see a list of suggested contacts to merge. 2. Choose the contacts you want to merge.

Some HTC phone models may not support this feature. If your phone doesn't have this feature, use your computer to access your Gmail. Gmail on the web allows you to merge duplicate contacts.

1. Slide the Notifications panel open, and then tap Settings > Personalize. 2. On the Sound tab, tap Sound set. 3. Choose a sound set you want to customize, or create a new one. 4. Change the ringtone, notification sound, or alarm from the Personalize screen.