Home > Support > Browse by subject

Browse by subject

Browse the knowledge base
Browse our knowledge base
Specifications/features/user manuals
Device functionality
Contacts/address book
Call timer/Minute Minder
Device functionality general information
Network cards
Device troubleshooting
General Troubleshooting
Errors
What does the errror 'Wireless services are currently unavailable (Code: NET9)' mean? (T-Mobile Sidekick®/Sidekick® Color/Sidekick® II) ›
What does the error 'Waiting for Activation' mean? (Sidekick®) ›
How do I resolve a 'SIM not ready. Code: SIM 8' or 'SIM not found' error message? (T-Mobile Sidekick®/Sidekick® Color/Sidekick® II) ›
What does the error message 'Service Blocked' mean? (Blackberry®) ›
Why does the error 'Sending Failed' appear when sending a text message? (Sidekick®) ›
Troubleshooting HTTP errors 403, 500, 504 when using GPRS to synchronize with Exchange Server - ActiveSync® 3.x ›
How do I resolve a 'Communication Error' message accompanied by random code or pop-up windows? (BlackBerry®) ›
What does the error message 'Unassigned Number' when sending text messages mean? (BlackBerry®) ›
What does the error 'HTTP error 500' when browsing the Internet mean? (Blackberry®) ›
What does the error 'Uncaught Exception: Invisible node cannot be made current' mean? (BlackBerry® 8820™/Curve™ 8320™) ›
Device FAQs
3G
Alerts
Call services
CallerTunes
Downloads
CallerTunes
Games
Ringtones
Wallpaper/screensavers
E-mail
Customizing e-mail settings
Getting Started: BlackBerry Internet E-mail
BlackBerry Internet E-mail troubleshooting
Equipment Installment Plan
Instant Messaging
AOL Instant Messenger Service (AIM)
Managing the AIM Buddy List
AIM general information
ICQ
MSN Messenger
MSN Mobile Messenger
Yahoo! Messenger
Configuring Yahoo! Messenger
Message Messenger
Minute Messenger
Mobile Backup
MyAlbum
myFaves
Family Allowance Frequently Asked Questions
My T-Mobile
Log in to My T-Mobile
Manage My Account
Customize My Phone
My T-Mobile general information
Picture Messaging
Text Messaging
FlexPay Messaging FAQs
Using text messaging
Text messaging general information
T-Mobile @Home
T-Mobile @Home FAQs
Router Support
T-Mobile Internet
T-Mobile Internet Manager
T-Mobile Internet general information
T-MobileWeb
Getting started with T-MobileWeb
T-MobileWeb services
Browsing the Internet
Using T-Mobile Internet with T-MobileWeb
T-MobileWeb troubleshooting
T-MobileWeb general information
Video
VoiceMail
Visual Voicemail
WorldClass roaming
web2go
Billing general information
Online billing
T-Mobile Prepaid billing
FlexPay billing
Billing FAQs
Privacy and Security
Accounts with multiple phones
Primary Account Holder
Plans general information
Rate plans
myFaves
Take Control
Rate plans general information
kidConnect
FlexPay
Coverage
Roaming
Coverage general information
T-Mobile FlexAccount
T-Mobile Prepaid rates
T-Mobile Prepaid refills
T-Mobile Prepaid service
SmartAccess
Accounts with multiple phones
Primary Account Holder
Plans and Services
Billing
Account information
Customer service
Log in to My T-Mobile
Manage your account, access support, and personalize your phone.