Here's a list of Hidden Menus & Functions I've stumbled across. Some of them are handy for BES/Enterprise support only.

Most require you to hold down the ALT key whilst typing the letters after the + sign (they don't need to be capitals).

Enterprise Activation (Options->Advanced)

• ALT+CNFG - Settings for Enterprise Activation

Address Book

• ALT+VALD - Validate the data structure and look for inconsistencies
• ALT+RBLD - Force a data structure rebuild

from the Options menu, type the following (No ALT+ required)

• RSET - Will prompt to erase & reload for a reload of the Address book from the BES
  (n.b. this will wipe all entries, but you can goto SIM Phone Book & copy entries back afterwards)

Browser

• ALT+RBVS - View web page source code

Calendar
Open up a Calendar item

• ALT+VIEW Inside any Calendar item Show extra info for a Calendar event
  (including message ID - handy for BES log troubleshooting)

from the Options menu, type the following (No ALT+ required)

• SYNC - Enable Calendar slow sync
• RSET - Will prompt for a reload of the calendar from the BES
• RCFG - Request BES configuration
• SCFG - Send device configuration
• DCFG - Get CICAL configuration
• SUPD - Enable detailed Cal. report for backup
• SUPS - Disable detailed Cal. report for backup
• SUPN - Disable Cal. report database
• LUID - Enable view by UID
• SRSL - Show Reminder status log

Messaging

• ALT+VIEW - For messages, displays the RefId and FolderId for that particular message. For PIM items, displays only the RefId.

Search Application

• ALT+ADVM Search Application Enabled Advanced Global Search

Home Screen

• ALT(left)+Shift(right)+Del - Restart the Blackberry (only for full-keyboard Blackberries)
• ALT+JKVV - Display cause of PDP reject
• ALT+CAP+ H - Displays the Help Me screen
• ALT + EACE - Displays the Help Me screen
• ALT + ESCR - Displays the Help Me screen
• ALT + NMLL - Switches the signal strength from bars to a numeric value.
• ALT + LGLG - Displays the Java™ event log.

WLAN (WLAN wizard screen)

• ALT-SMON WLAN - Enable simulated Wizard mode
• ALT-SMOF WLAN - Disable simulated Wizard mode

Theme (from theme menu)

• ALT-THMN - Change to no theme (B&W)
• ALT-THMD - Change to default theme

Date/Time (Date/Time menu - No ALT+ required)

• LOLO - Date/Time Show Network time values

SIM Card (Options->Advanced->SIM card - No ALT+ required)

• MEPD - Display MEP info
• MEP1 - Disable SIM personalization
• MEP2 - Disable Network personalization
• MEP3 - Disable Network subset personalization
• MEP4 - Disable Service provider personalization
• MEP5 - Disable Corporate personalization

Status (Options->Status)

• BUYR - Data & Voice Usage
• TEST - start a device test (Keyboard, GPS, RF, Audio (Handset,headset,bluetooth, Misc)