Why is gsm on my blackberry

It ends this weekend. The IMEI will be listed amid a number of bar codes and other product information. Once you've paid, passed along your IMEI and received the unlock code in return, you should follow these instructions to unlock your BlackBerry Tour. Again, these steps are BlackBerry Tour-specific, and may not work to unlock other devices. The card can be the one you wish to employ or any other SIM. Scroll down to and click SIM Card. Enter in your unlock code, click your trackball to confirm it, and voila, your Tour's unlocked.

Next, open up your Manage Connections options again. Remember, if you want to go back to CDMA, you need to switch back the network technology option.

Perhaps the easiest way to unlock your BlackBerry Tour is through Verizon Wireless or Sprint--assuming you purchased the device through one of the carriers and have a current service plan. The best thing about this option? It's free. I can't vouch for Sprint, but I've talked with a number of Verizon customers who've successfully unlocked BlackBerrys for free by simply calling up the carrier and asking for an unlock.

Okay, it's not exactly that simple The Tour, and any other BlackBerry World Edition device, is meant for use on both CDMA and GSM networks; however, the carriers that sell the devices want you pay it or its partners for international data and roaming, instead of using another carrier's network altogether.

Carriers do everything they can to dissuade you from using another carrier, and that means it may not be quick to unlock your device if it suspects you're going to use it on another network. Verizon will reportedly unlock your BlackBerry Tour for free if you call and ask, but you'll be wise not to mention that you plan to use it on another carrier. When you call Verizon to request an unlock, or visit a local retail store, explain that you want to use your device overseas, but are unsure of where exactly and want to hold off on adding global data to your plan.

It should be that simple. Still, I found someone yesterday who asked Verizon to unlock his BlackBerry , but the carrier refused, unless he came to a store and talked with a representative. He had recently purchased and activated the device, so Verizon was apparently suspicious since he hadn't been using the BlackBerry on Verizon for long at all before requesting an unlock.

If everything goes as planned and your carrier doesn't impeded your unlocking, remember to insert the SIM card you wish to use into your device. Then open up your Manage Connections options. To determine if oxidation has occurred, follow these steps:. Step 10 - The BlackBerry smartphone requires the latest software from the wireless service provider. Upgrade the BlackBerry Device Software to the latest version available from the wireless service provider.

For instructions, see Article If none of the above resolutions correct the problem, contact your wireless service provider. Toggle navigation. Knowledge Base. Complete the following steps in order until service is restored on the BlackBerry smartphone: Step 1 - The SIM card is not properly inserted into the BlackBerry smartphone. Insert the SIM card so that it fits properly into the BlackBerry smartphone, and then insert the battery. If there are SIM card errors after the BlackBerry smartphone initializes, contact the wireless service provider.

Note : If SIM card appears to be damaged or corroded skip to step 9 Step 2 - The service has been disconnected by the wireless service provider. From the Options list, select Network. Change the Network Selection Mode option to Automatic. Press Escape , then click Save. To perform this, follow these steps: On the BlackBerry smartphone Home screen, disconnect the BlackBerry smartphone from the wireless network and then reconnect.

Change the Network Selection Mode option to Manual. Select Scan for Available Networks. Select an available network. If no network is available, contact the wireless service provider. To change the Network Technology setting, follow these steps: From the BlackBerry smartphone home screen open Options.

Select Mobile Network. Select Global beside Network Technology. To change the Network Technology setting, follow these steps: Open Options. Check the SIM card for scratches or other visible damage. To determine if oxidation has occurred, follow these steps: Remove the battery and SIM card from the BlackBerry smartphone.