Boot your Droid X into recovery mode

It’s always good to know how to get it into recovery mode. This little trick probably won’t be used much until the Android hacking/developing crowd gains root access to our new Droid X, but you might as well know about it now. And no, this won’t brick your phone.

Instructions…

1.  Turn your phone off.
2.  Hold down “Home” and press “Power” until the Motorola logo appears.
3.  Release  ”Power” and continue to hold “Home” until an exclamation appears.
4.  Release “Home” and press the “Search” button once.
5.  Your phone will now enter recovery.

To get out of it, simply use your volume up and down buttons until “reboot system now” is highlighted and then press the camera button.

Source:[Droid-Life]

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Error 51 X 51 10 51 20 on HP printers

Error 51.XY, 51.10, 51.20 could be seen on these printers: HP 4240, 4250, 4350, P4014, P4014n, P3015... This error indicate that loss of beam-detect occurred.

51.10: Beam-detect error
51.20: Laser error






Solution 1:

• Dowload the last version of the driver

Solution 2:

• Press the "go" button.
• Switch off and on the printer.

Solution 3:

• Reseat connectors between the laser scanner and the DC controller (J83 and J84).

Solution 4:

• Replacer the laser scanner.

Solution 5:

• Replace the DC controller

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