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Unable boot "The device is unable to boot because either you have turned off the device incorrectly or tried to install an application from untrusted source. Press END to reset your device or press any other button to cancel. This operation will delete all your personal data and restore the device to its factory default settings." plzz help

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My phone is not installing the untrusted application

Yes this is true nokia does't install unsigned version of application or games (untrusted apps). so please try the Verisign or thwate signed version apps for installing apps in your mobile..

Aug 19, 2011 | Nokia 6120 classic Cellular Phone

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Htc ozone (xv6175) will not boot stuck on windows6 1 screen . I removed the battery and held the power button down 30 seconds now it has a message that says- The device is unable to boot because either...

Obviously one of your applications that you installed is the problem. Your best bet is to try to hard reset or reflash your device.
To do a hard reset:
  1. From the Today screen, press the left soft key to choose Start.
  2. Select System Tools then press the center of the 5-way navigation pad.
  3. Select Clear Storage then press the center of the 5-way navigation pad.
  4. Select Factory Default. Enter 1234 then press the left soft key to choose YES.

May 01, 2011 | HTC Ozone XV6175 Cell Phone

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"the device is unable to


Apr 15, 2011 | HTC Touch Pro Smartphone

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Usb ports not powering a keyboard or mouse

Best would be to determine whether any changes was made to the system prior to the error starting. Changes would include Windows updates, driver installations, hardware installations or software installations and upgrades. If you are unable to determine this, then boot into Safe Mode and view the System and Application Logs. Stop any services which may report that it can't start or has some or other error. If Software upgrades has been done, do a roll back on these and remove any newly installed hardware. If no upgrades where done hardware or software wise then disable all devices which is not required to boot the system and disable all services and applications loading on startup which is not required to boot the system. If the system boots after this then enable each program and devices separately ( Re-booting the computer after each one is enabled ), until the system fails. Disable the last device enabled before system failure and continue the process until finished leaving the devices / programs which causes system failure disabled.

Feb 22, 2010 | Acer Aspire T690 (AST690UP820A) PC...

2 Answers

When am trying to install new themes, am getting an error saying that ' Installation Security Error. Unable to Install'.

dont try to install untrusted themes on your phone.
your phone may get affected by virus or your phone software may damage.

Oct 24, 2009 | Nokia N70 Cellular Phone

1 Answer


That typically happens as a result of an application update that either downloaded an incorrect version of the application for the device, or the application update didn't complete before the device was removed, or the application it downloaded was somehow corrupt.

Try deleting any application updates that were downloaded into HOME, then delete the application from the device, then download the new application update for your device, and install it to the device. Give it a good wait after it says it has finished installing the application update and then be sure to use the software eject button within HOME before disconnecting the drive.

Otherwise, you probably have a call to TT support in your future where they will likely have you download a utility to clear the flash on the drive and reinstall the app on the device after that

Jun 22, 2009 | Tomtom ONE 3rd Edition GPS

2 Answers

UNABLE TO BOOT htc touch pro

Yes. i solved the problem in my one
vol down + restart + and the middle button = good :)

Dec 03, 2008 | HTC S710 Smartphone

4 Answers

UNABLE TO BOOT htc touch pro

voldown, central key and reset botom at the same time, then text appear, choose number 1 for restore manufacturer default pressing volup or 2 for restore munufacturer default and format moviMand pressing voldown and wait a few seconds.

Oct 16, 2008 | HTC Touch Pro Smartphone

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