I purchased a used NEC MobilePro and, after trying it out by playing a game of Solitaire on it, vertical lines appeared, within 5 minutes, in the display after exiting the game. I have fully charged the unit overnight, replaced the backup battery with a new one, and have tried adjusting the display every way I could find to no avail. These weird vertical lines are lighter in the center of the screen and are red and green in color, and act like they are almost flickering. Going outward from the center, the lines go to black in color.
The unit works great otherwise and I would like to keep it (I could possibly get a refund) if I can get someone's help in fixing the display (it is very difficult to see anything now on the screen). Thank you!
It is probably due to loose ribbon connector that connects screen(top) to the motherboard(bottom). Try tapping the right hinge first. Else (make sure to backup the computer before) examining this exposed ribbon connector under the right hinge, and depending upon how far one's knowledge and skill allows to go, by unseating and reseating this ribbon should take care of this situation. Very careful. Getting here could be fatal if not done right.
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I just bought a 900C on eBay and had the same problem. According to the seller "the video cable on the right under the hinge cover gets loose..if its reseated it will be fine..you could just press on the bottom of the hinge cover right and it will make it go away but best to reseat the cable."
I haven't tried his solution yet. Mine seems to intermittent since it is working fine right now.
The MobilePro 900 back up battery is low and should be replaced. The battery is a CR2032 coin-cell battery, which is very common and can be purchased at most department and drug stores.
Refer to section 1-7 of the "MobilePro 900 Handheld PC's User's Guide" for detailed replacement instructions.
Warning: This procedure will ERASE all user data stored on the MobilePro 900.
Make sure you have backed up all data before doing the following. To hard reset your MobilePro 900, simply remove both the main and back up batteries for 60 seconds. For detailed instructions on performing a hard-reset: http://support.necsam.com/mobilesolutions/hardware/Handhelds/MobilePro900/819-201025-000.pdf
The Ctrl-alt-del short cut to the Task Manager is not on the MobilePro 900. To bring up Task Manager on the MobilePro 900, hold the "Alt" key and then tap the task bar with the stylus simultaneously. A menu with "Task Manager" and "Properties" will be displayed, select Task Manager.
Devices running Windows CE 3.0 turn on at midnight to search for appointments for the coming day. Reminders are set and the Today view is updated with the day's events. The device is supposed to turn off after three minutes of inactivity.
If a program is running the unit may not turn off because there is activity. The following applications are known to cause problems:
* Windows Media player for Pocket PC.
* Active Sync
* Wireless LAN adaptors
NEC has developed a registry patch that has been tested on the following LAN cards.
Cisco Aironet 340
Cisco Aironet 350
Linksys WPC11 Ver 3
LA4137 Wireless Network
For additional information see Microsoft Knowledge Base Article – 263719
Click here to download the Power Management update utility.
Note: Anytime a “hard reset” is performed on the MobilePro 900 the Power Management update utility needs to be re-applied.
1. Download the Power Management update utility to local system.
2. Copy the Pwr_Mgt.exe file to the MobilePro 900 desktop.
3. Double tap the NEC Icon.
4. Click OK.
5. With power on momentary depress the “soft reset” on the bottom using the stylus.
6. Delete the NEC Icon on the desktop.
Note: It may be necessary to depress the power button more than once to properly initialize the power management circuitry before the unit comes on.
Note: It may be necessary to connect AC power to the unit and allow it to charge before attempting to apply power. The unit will not power up if the battery voltage is below a safe operating level.
Please refer to the leaflet "NEC MobilePro 900, Performing a Hard Reset" that was shipped with the unit for the procedure to perform a hard reset on your MobilePro 900.
There is an error in the MobilePro 900 manual (Pages 2-2 and 2-3). The jack on the front of the MobilePro 900 is a stereo headphone jack only. The MobilePro 900 has a built in microphone.
There is no jack for attaching an external microphone.
No the coin cell backup battery is not rechargeable.
If the MobilePro 900 back up battery is low it should be replaced. The battery is a CR2032 coin-cell battery, which is very common and can be purchased at most department and drug stores.
Refer to section 1-7 of the “MobilePro 900 Handheld PC’s User’s Guide” for detailed replacement instructions.