Troubleshooting your Motorola ES400
| Problem | Cause | Solution |
| ES400 does not turn on. | Battery not charged. | Charge or replace the battery in the Motorola ES400 |
| Battery not installed properly. | Install the battery properly. | |
| System crash. | Perform a reboot. | |
| Battery did not charge. | Battery failed. | Replace battery. If the ES400 still does not operate, perform a reboot. |
| No power to cradle or cable. | Ensure that power is applied to the cradle or cable. The Battery Status LED flashes green to indicate that the ES400 is charging. | |
| ES400 removed from cradle while battery was charging. | Place the ES400 into the cradle. The 1540 mAh battery fully charges in less than three hours and the 3080 mAh battery charges in less than six hours. | |
| Extreme battery temperature. | Battery does not charge if ambient temperature is below 0°C (32°F) or above 40°C (104°F). | |
| ES400 not functioning. | Perform a reboot. | |
| Cannot see characters on display. |
ES400 not powered on. | Press the Power button. |
| During data communication, no data transmitted, or transmitted data was incomplete. | ES400 removed from cradle or disconnected from host computer during communication. |
Replace the ES400 into the cradle, or reattach the USB Rapid Charging cable and re-transmit. |
| Communication software was incorrectly installed or configured. |
Perform setup. | |
| No sound. | Volume setting is low or turned off. | Adjust the volume. |
| ES400 shuts off. | ES400 is inactive. | The ES400 turns off after a period of inactivity. |
| Battery is depleted. | Recharge or replace the battery. | |
| Tapping the window buttons or icons does not activate the corresponding feature. | Screen is not calibrated correctly. |
Re-calibrate the screen. Tap Start > Settings > System >Screen > Align Screen button. |
| The ES400 is not responding. | Reboot the ES400. | |
| A message appears stating that the ES400 memory is full. | Too many files stored on the ES400. |
Delete unused memos and records. If necessary, save these records on the host computer (or use an microSD card for additional memory). |
| Too many applications installed on the ES400. |
Remove user-installed applications on the ES400 to recover memory. Tap Start > Settings > System > Remove Programs. Select the unused program and tap Remove. | |
| Camera application does not launch. | DataWedge application running. |
Stop DataWedge application. Tap Start > Settings > System > DataWedge. Tap Running to stop DataWedge and then tap OK. |
| The ES400 does not decode while reading a bar code. |
Scanning application is not loaded. |
Load a scanning application on the ES400. See your system administrator. |
| Unreadable bar code. | Ensure the symbol is not defaced. | |
| Distance between exit window and bar code is incorrect. | Place the ES400 within proper scanning range. | |
| ES400 is not programmed for the bar code. |
Program the ES400 to accept the type of bar code being scanned. | |
| ES400 is not programmed to generate a beep. |
If the ES400 does not beep on a good decode, set the application to generate a beep on good decode. | |
| Phone service is not available with SIM card installed. |
SIM card might not be installed properly. |
Re-install SIM card and ensure that it is seated properly. |