Camera flash doesn’t turn on? | HTC Thunderbolt guide

250 Camera

Camera flash doesn’t turn on?

The camera flash uses much battery power. To save battery power, the camera disables it (even when it’s set on) when one of the following occurs:

You have an incoming call

The camera flash will be disabled temporarily when you have an incoming call. After the call ends, you’ll be able to use it again.

If you have set the flash to Auto flash or Flash on in photo mode or Light on in video mode, it turns back on after you answer and end the call.

Your phone’s battery level reaches 15% or lower

Recharge the battery so that the camera can have enough battery power to use the flash.

Cold weather may lower battery performance which affects the flash

To make sure the camera has enough battery life to power up the flash, keep your phone warm. When not in use, put the phone inside your jacket to keep it warm, and try to avoid sudden temperature changes that may affect battery performance.

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HTC Thunderbolt Camera flash doesn’t turn on?, You have an incoming call, Your phone’s battery level reaches 15% or lower

Contents

Master Your Device Conventions used in this guide Contents Quickly looking up information on the Web Getting started Adding icons and other shortcuts on your Home screen Personalizing Adding a new phone number to your contacts from call history Turning the speakerphone on or off during a call Breaking the contact information link between contacts Importing a contact from an Exchange ActiveSync account100 101 105 104106 107 123 Creating a slideshow 122124 127 153 151162 168 170 169171 173 12 Setting the time zone, date, and time 207197 198 216 215217 219 14 Disconnecting or unpairing from a Bluetooth device 237Selecting an address or phone number in a webpage 228 229 244 Using the front camera 246245 247 271 16 278 288 292 Changing update schedule and content settings 295293 294 Switching between silent, vibration, and normal modes 320 18 Finding and installing apps from Android Market 306Turning on or off automatic ring volume adjustment 321 308 326 Checking the power usage of applications 323 Your phone Front panelBasics Basics Right panel Back panel Back cover Removing the back coverReplacing the back cover Inserting the SIM card SIM card Basics Removing the SIM card Battery Inserting the battery Charging the battery Removing the battery Inserting the storage card Storage card Removing the storage card while the phone is on Removing the storage card Switching your phone on or off Switching your phone onSwitching your phone off Finger gestures Getting started Setting up your phone for the first time Home screen Extended Home screenGetting started Getting started Using Leap view Status icons Status and notifications Notification icons Getting started Notifications panel Notification LEDOpening the Notifications panel Switching between recently-opened apps Closing the Notifications panel Connecting your phone to a computer Getting started Copying files to or from the storage card Searching your phone and the Web Setting your phone’s search options Quickly looking up information on the Web Translating words to other languages Adjusting the volume Adjusting the media volume Adjusting the ringer volumeAdjusting the earpiece volume for phone calls Adjusting the volume via settings Sleep mode Switching to Sleep modeWaking up from Sleep mode Unlocking the screen Personalizing Making your phone truly yoursPersonalizing your phone with scenes Personalizing Using a preset scene Renaming a scene Creating a new sceneDeleting scenes Personalizing Changing your wallpaper Applying a new skin Adding a widget Personalizing your Home screen with widgets Changing the settings of a widget Adding icons and other shortcuts on your Home screen Adding folders on your Home screen Creating a new folder and adding items to itRenaming a folder Moving a widget or icon Removing a widget or icon Rearranging the Home screen Choosing a preset sound set Changing your ringtones and alarms Customizing a sound set Creating a sound set Personalizing Deleting sound sets Rearranging or hiding application tabs Putting back the tabs you’ve removed Phone calls Making callsMaking a call on the Phone dialer screen Phone calls Using Speed dial Calling a phone number in a text message Calling a phone number in an emailPhone calls Making an emergency call Using Assisted Dialing Answering or rejecting an incoming call Receiving calls Phone calls HTC Caller ID Using in-call options Switching between callsPutting a call on hold Turning the speakerphone on or off during a call Setting up a three-way conference call Ending a call Muting the microphone during a call Using Call history Checking a missed callChecking calls in the call history Clearing the call history list Adding a new phone number to your contacts from call history Call services Visual Voice Mail Setting up Visual Voice Mail Using Visual Voice Mail Turning Airplane mode on or off People About PeoplePeople screen People Setting up My contact card Ways of getting contacts into your phone Adding a new contactPeople Importing contacts from your SIM card Importing a contact from an Exchange ActiveSync account Merging contact information Accepting matched contacts suggestions Viewing a list of all your linked contacts Manually merging contact informationBreaking the contact information link between contacts Your contacts list People Searching for a contact Filtering your contacts list Backing up your contacts to the storage card Importing contacts from the storage cardDeleting contacts Contact information and conversations Editing a contact’s information Sending contact information as a vCard Contact groups Creating a groupEditing a contact group Sending a message or email to a group Rearranging your contact groups Rearranging the members of a contact groupDeleting a group Changing the default communication method Setting the default communication methodPeople widget Adding People widgets Getting in touch with a contact Using the onscreen keyboard KeyboardSelecting a keyboard layout Keyboard Entering text Enabling multiple keyboard languages Changing to the landscape onscreen keyboardKeyboard Entering words with predictive text Setting a second language for the keyboard Editing or deleting a word in the predictive text dictionary Adding a word to the predictive text dictionary Importing your personal dictionary from your storage card Backing up your personal dictionary to your storage card Setting the voice input language Entering text by speakingEditing text Selecting text Adjusting touch input settings Touch Input settingsCopying and pasting text Keyboard Text input Keyboard About Messages Messages Messages Sending a text message SMS Messages Sending a multimedia message MMS Messages Creating a slideshow Resuming a draft message Viewing and replying to a messageMessages Replying to a message Viewing a message Replying to another phone number of the contact Viewing push messages Viewing and saving an attachment from a multimedia message Managing message conversations Protecting a message from deletionCopying a message to your SIM card Deleting several messages within a conversation Deleting a single message Deleting several conversations Deleting a conversation Sent messages Setting message options Storage settings MMS settings Voicemail notification settings Accounts and sync Synchronizing with online accountsAbout online accounts Accounts and sync Synchronizing with a Google Account Accounts and sync Adding a social network account Managing your online accounts Synchronizing with your computer Installing HTC Sync Setting up HTC Sync to recognize your phone Accounts and sync Setting the Music sync options Setting the Gallery sync options Setting People sync options Setting Calendar sync options Setting Bookmarks sync options Setting Documents sync options Setting Maps sync options Synchronizing your phone Installing apps from your computer to your phone Synchronizing another phone with your computer Facebook for HTC Sense Social  See Facebook photos right on the Gallery app Social Social Tweeting on your phone Using Peep Searching for Twitter users to follow Sending a tweet Sending a direct message Setting Peep options About the Twitter widget Friend Stream Social Updating your status Commenting on and liking Facebook posts About the Friend Stream widget Checking notifications from your social networks Chatting with friends Chatting in Google Talk Changing your online status and picture Accepting chat invitations Adding and managing friends Changing the settings and signing out Viewing your Gmail Inbox Using Gmail Email Sending a new message Reading your messages Replying to or forwarding an email message Searching and organizing your emails Page Changing Gmail settings Page Getting help Using Mail Adding a POP3/IMAP email accountAdding a Microsoft Exchange ActiveSync account Checking your Mail inbox Up to 15 email accounts can be shown in the unified inbox Email Page Managing email messages Sending an email message Switching to other mail folders Email Reading and replying to an email message Setting the priority for an email message Working with Exchange ActiveSync email Changing email account settings About Calendar Calendar Calendar Creating calendar events Calendar Inviting guests to your event Google Account only Calendar Month view Changing calendar views Day and Agenda views Week view Viewing an event Managing calendar events Editing an event Deleting an eventSharing an event vCalendar Dismissing or snoozing event reminders Calendar event reminders Showing or hiding calendars Displaying and synchronizing calendars Reminder settings Changing Calendar settings Calendar view settings About the Calendar widget About the HTC Clock widget Clock and Weather Clock and Weather About the Clock app Clock and Weather Using Desk Clock Clock and Weather Setting your home city Using World Clock Setting the time zone, date, and time Adding a city to the World Clock screen Setting the alarm clock Deleting an alarm Setting an alarm Changing alarm sound settings Checking weather Adding a city to the Weather screen Changing the order of cities on the Weather screen Deleting cities from the Weather screenChanging weather options About the Weather widget Internet connections Checking the data connection you are usingData connection Turning the data connection on or off Creating a new access point Enabling data roamingInternet connections Wi-Fi Turning Wi-Fi on and connecting to a wireless networkInternet connections Checking the wireless network status Connecting to a Wi-Fi network with EAP-TLS security Adding connection widgets Connecting to another Wi-Fi network Setting up secure credential storage Connecting to a virtual private network VPN Connecting to a VPN Disconnecting from a VPNAdding a VPN connection Using your phone as a modem Internet Connection Mode Internet connections Using your phone as a mobile hotspot Using your phone’s web browser Web browserGoing to a webpage Choosing when to show Flash content Setting your homeChanging the screen orientation Browsing full versions of all websites Zooming in or out on a webpage Navigating on a webpageSelecting a link in a webpage Web browser Switching between browser windows Selecting an address or phone number in a webpageOpening a new browser window Downloading applications from the web Finding text within a webpage Copying text, looking up information, and sharing Selecting text Searching or translating text Bookmarking a webpage Viewing bookmarks and previously visited pagesOpening a bookmark Editing a bookmark Clearing the list of previously visited pages Setting browser optionsViewing a page that you often visit Clearing the list of most visited pages Bluetooth basics BluetoothTurning Bluetooth on or off Changing the phone name Bluetooth Connecting a Bluetooth headset or car kit Reconnecting a headset or car kit Disconnecting or unpairing from a Bluetooth deviceDisconnecting a Bluetooth device Bluetooth Unpairing from a Bluetooth device Sending information using Bluetooth Bluetooth Where sent information is saved Receiving information using Bluetooth Bluetooth Adding the Bluetooth received folder to the Home screen Camera basics Camera Camera Viewfinder screen Using the front camera ZoomingCamera Taking a photo Auto focusing Recording video Your phone’s battery level reaches 15% or lower Camera flash doesn’t turn on?You have an incoming call After capturing Adding effects Changing camera settings Camera Photos, videos, and music Browsing your GalleryAbout the Gallery app Photos, videos, and music Selecting an album Photos, videos, and music Viewing photos Photos, videos, and music Editing your photos Viewing videos Photos, videos, and music Sending your photos and videos Sharing your photos and videos on the Web Sending photos or videos using Bluetooth Photos, videos, and music Photos, videos, and music Photos, videos, and music Photos, videos, and music Listening to music Photos, videos, and music Flipping through your albums Browsing music in the Library Creating a playlist Setting a song as ringtone Photos, videos, and music Photos, videos, and music Sharing music using Bluetooth Sharing media on your home network Finding music videos in YouTubeAbout the Music widget Photos, videos, and music Photos, videos, and music Using Google Maps Turning on location servicesMaps and location About Google Maps Maps and location Getting around maps Maps and location Searching for a location Maps and location Adding a place to search Searching for a place of interest near you Getting directions Maps and location Adding a location as a footprint Using HTC Footprints Editing or deleting a footprint Revisiting a footprintSharing your footprints Deleting multiple footprints Importing footprints Using Car Panel Using VZ Navigator Watching videos on YouTube More apps Sharing a video link Searching for videosCapturing a video and sharing it on YouTube More apps More apps Reading news feeds Reading a story Subscribing to news channels Manually checking for new stories Starring a storyAdding a keyword Adding the News widget Changing update schedule and content settings Viewing a document, spreadsheet, or presentation Working on documents, spreadsheets, and presentations Creating a new document or worksheet Editing a document or worksheet Keeping track of your stocks Adding a stock quote or stock market index Changing update schedule and color settingsChanging the stock list order Deleting stock quotes and indices About the Stocks widget Listening to FM Radio Tuning in to an FM station Recording your voice Closing or turning off FM RadioAdding the FM Radio widget Setting a voice clip as a ringtone Sharing a voice clipRenaming a voice clip Using Flashlight Finding and installing an app Finding and installing apps from Android Market Do any of the following to find an app Creating a Google Checkout account Opening an installed app Sharing games and apps Uninstalling an app Tap an app, and then choose how to share it More apps Security Protecting your SIM card with a PINRestoring a SIM card that has been locked out Protecting your phone with a screen lock Changing your screen lockSecurity Security Forgot your screen lock pattern? Settings on your phone Settings Settings Settings Adjusting the screen brightness manually Changing display settingsAdjusting the time before the screen turns off Turning automatic screen rotation off Switching animation effects on or off Recalibrating the G-sensorKeeping the screen on while charging the phone Switching between silent, vibration, and normal modes Changing sound settingsEnabling or disabling audible selection Choosing the notification sound Switching to speakerphone automatically Turning on or off automatic ring volume adjustment Changing the phone language Optimizing your phone’s battery life Managing memory Checking the power usage of applicationsChecking how much phone memory is available for use Checking the available storage card space Moving applications to or from the storage card Uninstalling third-party applications Checking information about your phone Setting up Backup Assistant Back up, update and resetChanging the backup schedule Backing up your contacts Update and reset Updating the phone softwareManually backing up your contacts Checking for phone system software updates manually Restarting or factory resetting your phoneRestarting your phone soft reset Update and reset Performing a factory reset hard reset Trademarks and copyrights Trademarks and copyrights Index Index Index Index Index Restarting 328 Ringer volume 51 Ringtone 65, 271 trimming SMS Index