- Notes, cautions, and warnings
- Working on your computer
- Technology and components
- Major components of your system
- Removing and installing components
- Recommended tools
- Secure Digital Card
- SIM Card
- Base cover
- Memory modules
- WLAN card
- WWAN card
- WWAN daughterboard
- Hard drive
- Coin-cell battery
- Battery
- Speakers
- Solid-state drive/Intel Optane memory module
- Removing the M.2 2280 Solid-state drive or Intel Optane memory—Optional
- Installing the M.2 2280 Solid-state drive or Intel Optane memory - Optional
- Removing the M.2 Solid-state drive bracket
- Installing the Solid-state drive bracket
- Removing the M.2 2230 Solid-state drive
- Installing the M.2 2230 Solid-state drive
- IO board
- Touchpad
- System fan
- Heat sink
- VGA daughterboard
- Power-button board
- System board
- Display assembly
- Display bezel
- Display panel
- Display cable
- Power-adapter port
- Camera
- Keyboard
- Palmrest
- System setup
- BIOS overview
- Entering BIOS setup program
- Navigation keys
- One Time Boot menu
- System setup
- Boot options
- System configuration
- Video screen options
- Security
- Passwords
- Secure boot
- Expert Key Management
- Performance
- Power management
- Wireless options
- Post behavior
- Virtualization support
- Maintenance
- System logs
- SupportAssist system resolution
- Updating the BIOS
- System and setup password
- Clearing CMOS settings
- Clearing BIOS (System Setup) and System passwords
- Troubleshooting
- Handling swollen rechargeable Li-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- Diagnostic LED
- Battery status LED
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Backup media and recovery options
- Wi-Fi power cycle
- Drain residual flea power (perform hard reset)
- Getting help
Dell Latitude 3400 Service Manual
Installing the coin cell battery
Steps
- With the positive-side facing up, insert the coin cell battery into the battery socket on the I/O board [1].
- Press the battery until it clicks into place [2].
Next steps
- Replace the IO board
- Replace the hard drive assembly
- Reconnect the battery cable.
- Replace the base cover
- Replace the SD memory card
- Follow the procedure in after working inside your computer
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