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How do you turn on the Blackberry 7750? - RIM BlackBerry 7750

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How to change password on blackberry when you don't know the password?


If you or a user turns on content protection for a BlackBerry device that is running BlackBerry Device Software version 4.3 or later, you can reset the BlackBerry device password using a BlackBerry Enterprise Server version 4.1 SP5 or later. The BlackBerry Enterprise Solution uses the remote password reset cryptographic protocol to reset the BlackBerry device password when content protection is turned on. The BlackBerry device does not prompt the user for the old BlackBerry device password.
The remote password reset cryptographic protocol is designed to provide the following features:

* permit the BlackBerry device to encrypt the content protection key again with the new password, without the old password being available
* prevent a hardware-based attack on the BlackBerry device from recovering the content protection key without knowing either the BlackBerry device password or the IT policy private key that the BlackBerry Enterprise Server generates for the BlackBerry device
* prevent the BlackBerry Enterprise Server from accessing any data that a potentially malicious user could use to recover the content protection key

To reset the BlackBerry device password, you send the Specify new device password and lock device IT administration command to the BlackBerry device. You should send the IT administration command to a content-protected BlackBerry device that is in the possession of the BlackBerry device user only. If you send the IT administration command to a BlackBerry device that is in the possession of a potentially malicious user, that user can use a hardware-based attack to recover the key pair that the BlackBerry device created when it received the IT policy. The potentially malicious user can use the key pair to decrypt all the data on the BlackBerry device.

* Process flow: Resetting a BlackBerry device password when content protection is turned on

Proceed on this link : ID PASSWORD RESET

Aug 06, 2011 | RIM BlackBerry 8703e Smartphone

1 Answer

Blackberry 8310, when i turn it on it only says "JVM error 513"...and under that it says reset...and when i push reset it turns off & does the same thing again...


Your Blackberry probably just needs a firmware restore. Here's a guide on how to restore the blackberry firmware, the website is at : Restore Blackberry to factory settings. Download the Blackberry Desktop manager and run the application loader.

Jun 24, 2010 | AT&T Blackberry Curve 8300 Smartphone

1 Answer

Hi my blackberry 8320 will not turn on it is say jum or jvm error 513 then tellin me to reset. Where about is the reset button please?


You need a firmware restore. Here's a guide on how to restore the blackberry firmware, the website is at : Restore Blackberry to factory settings. Download the Blackberry Desktop manager and run the application loader.

May 08, 2010 | AT&T Blackberry Curve 8300 Smartphone

1 Answer

Wont turn on -icon with batterry with slash throug it comes on -battery is in?


Hi,

Take the battery out and place it back in, try putting it on and if this does not come on then I'll advice that you take it to a certified blackberry service personnel so they can test the battery to see if your battery could be faulty.

Once determined you would get a new battery for less than $35.

Kind Regards

Nov 15, 2009 | RIM BlackBerry 7750

1 Answer

My blackberry pearl turned itself off and when I tried turning it on all I get is an hourglass


  • BlackBerry Devices take a while to turn on, so be sure you have waited atleast 5 minutes for it to turn on
  • Make sure the battery isnt dead (plug in charger)
  • Try pulling out the battery and re-inserting it.
  • If none of the above steps worked, try this:
  1. Plug your BlackBerry into the computer.
  2. Download the latest version of the Blackberry operating system from your carrier.
  3. install it to your Blackberry using Desktop Manager

  • If it isn't recognized by the computer, or the install dosent work, call your carrier for a warranty repair.

Sep 30, 2009 | RIM BlackBerry Pearl 8100

2 Answers

BB 7250 won't switch on


Something you can try. Open up Desktop Manager (with the BlackBerry unconnected) open up the Application Loader. Before hitting next, pull the battery out of the 7750 for 5 to 10 seconds, then quickly put the battery back in, connect the BlackBerry, and hit next on the application loader. This should kickstart Application Loader to find the BlackBerry and allow you to reload the handheld software. So, make sure you have the handheld software installed on your comptuer (which you already do)

Jun 21, 2009 | RIM BlackBerry 7250

1 Answer

Blackberry pearl won't turn on


There are no special ways of turning on the Blackberry.

Simply power on - it is fully charged - if this doesn't work, remove the battery for a couple of seconds and re-try power on.

May 30, 2009 | RIM BlackBerry Pearl 8100

1 Answer

Hour glass constantly turns on


Try to reset - firstly by powering off, removing battery wait 30 seconds and then power back on.

Faling that do a soft reset hold down for a couple of second these ALT+RIGHT SHIFT(CAP)+DELETE keys

Mar 22, 2009 | RIM BlackBerry 7750

2 Answers

My blackberry 7290 Rim(T-Mobile)says: Device error


An unspecified error has occurred with an application on your Blackberry smartphone.


Resolution In BlackBerry Desktop Manager, run the BlackBerry Application Loader tool.
Note: The following procedure will delete all data and applications from your BlackBerry smartphone.
  1. Disconnect your Blackberry smartphone from your computer.
  2. Open BlackBerry Desktop Manager.
  3. Open BlackBerry Application Loader.
  4. Reset your Blackberry smartphone.
    1. Remove the battery cover.
    2. Remove and reinsert the BlackBerry battery to reset the BlackBerry smartphone.
    3. Replace the battery cover.
    To perform a hard reset on a RIM 850 device, RIM 857 device, RIM 950 device, or RIM 957 device, insert the end of a paperclip inside the small hole on the back of the BlackBerry device.
  5. When the LED indicator has turned on, reconnect the BlackBerry smartphone to the computer.
  6. Click Next.
  7. On the following screen you will see either USB:Unknown or USB:; click Next.
  8. Select the required applications from the applications list and click Next. The firmware is loaded to your BlackBerry smartphone.
Warning: The following procedures will delete either all data, or all data and applications on the BlackBerry smartphone. Back up the data on your BlackBerry smartphone before performing this procedure.

Mar 01, 2009 | RIM BlackBerry 7290

2 Answers

Blackberry Pearl keeps turning mobile connection off.


There might be some issue with the BlackBerry Device Software associated with the BlackBerry smartphone so Upgrade the BlackBerry smartphone with a newer version of BlackBerry Device Software and make sure that you have taken a backup before upgrading.

Feb 27, 2009 | RIM BlackBerry Pearl Smartphone

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