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  1. Aug 31, 2022 · More to the point, you can’t change the SIM card on these phones while the phone is powered on. They placed the SIM card under the battery to force the power off and make the process safe. With phones that do not have a removable battery (more common after 2015), the rules are different. You can hot-swap the SIM card without any worry.

    • Performing a Hard Reset: Open the battery cover on the back of the BlackBerry. Remove the battery from the phone. You can perform a hard reset on the BlackBerry Z10 by pressing and holding the Power button on the top of the phone for about 10 seconds.
    • Performing a Soft Reset: Press and hold the Alt key. This method will reset your BlackBerry without having to remove the battery. You cannot perform this method if your BlackBerry does not have a keyboard.
    • Performing a Factory Reset: Open the Options on your home screen. Performing a factory reset, or security wipe, will remove all of your personal information and reset the phone to the state it was in when it came out of the box.
    • Performing a Hard Reset Open the battery cover on the back of the BlackBerry. Remove the battery from the phone. You can perform a hard reset on the BlackBerry Z10 by pressing and holding the Power button on the top of the phone for about 10 seconds.
  2. Aug 19, 2020 · 1. Sometimes my phone (running LineageOS 14.1 / Nougat 7.1) will lose proper SIM card access, showing a "No SIM card" or "Invalid card" message and not allowing any cellular network accesses anymore. This is always resolved by a reboot. However, I would prefer to only reset the SIM card access without rebooting the whole phone.

  3. Apr 13, 2024 · 1. Restart your device: Sometimes a simple restart can resolve minor issues. Power off your device, remove the SIM card, wait for a few seconds, and then reinsert the SIM card and power on your device. 2. Check SIM card compatibility: Ensure that your device is compatible with the SIM card you are using.

  4. Devices running earlier versions of the BlackBerry OS, like the BlackBerry 9930, can also be manually security wiped after a theft. To begin the wipe, click "Options" followed by "Security" and "Security Wipe." Check off the check boxes for the data you wish to remove, then type "blackberry" when prompted and click "Wipe Data" to begin the wipe.

    • Shea Laverty
  5. Apr 27, 2016 · To follow this method, you'll need a BlackBerry with a QWERTY keyboard. Press the Alt key and hold it down, then press the Right Shift key and hold it down, and then hit the Delete and hold it down (you should now have all three keys pressed together). After a short wait, your screen should go black and your phone will restart, reloading the ...

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  7. Jul 15, 2022 · On the iPhone, start the Settings app and then tap General, followed by Transfer or Reset iPhone. At the bottom of the screen, tap Reset, then Reset Network Settings . Resetting your network ...