Network signal is off in my Blackberry 8320

Good day!
Please help me with my device. The network signal is off and i'm trying to fix it but i failed..
From options->mobile network-> it stated here mobile network is *none*. I scanned for available networks and it prompts Scan fo networks timed out. Please try again later.
Please help........
Thank you in advance for those who will help :-)

Hello Nichoikki,
Welcome to the BlackBerry Support Community.
Do you have an active data plan with your mobile service provider? If so, you may want contact them to verify the settings on your account and coverage.
Thank you.
-FB
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I was wondering if I could get some help.
I recently purchased a Blackberry 8320 off of an ebay store from Japan. It is an unlocked phone GSM phone.
I live in Canada and I cannot make calls, it just says "Call Failed" but I can recieve calls and I can send and receive text messages.
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Hi and Welcome to the Forums!
I suggest the following steps:
1) Register HRT
Homescreen > Options > Advanced Options > Host Routing Table > (it does not matter which line is current) > Register Now
2) Resend Service Books
KB02830 Send the service books for the BlackBerry Internet Service
3) Batt Pull Reboot
Anytime random strange behavior or sluggishness creeps in, the first thing to do is a battery pop reboot. With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes. See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.
Hopefully that will get things going again for you! If not, then you will need to contact your carrier for assistance.
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

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Hello alphaabet and welcome to the BlackBerry® Support Community Forums.
Sorry to hear you are having network issues with your BlackBerry® Curve™ 9360 smartphone.
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If you did purchase this from your mobile carrier and are still unable to acquire 3G then call your carrier and asked to be transferred to RIM® support for further investigation.
Hope this answers your question.
VIA | hmthepirate
http://supportforums.blackberry.com/t5/BlackBerry-Curve/9380-unable-to-get-3g/td-p/1748391
Hi and Welcome to the Community!!
I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):
1) Register HRT
KB00510 How to register a BlackBerry smartphone with the wireless network
Please wait for one "registration" message to arrive to your Messages app
2) Resend Service Books
KB02830 Send the service books for the BlackBerry Internet Service
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3) Batt Pull Reboot
Anytime random strange behavior or sluggishness creeps in, the first thing to do is a battery pop reboot. With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes. See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.
Hopefully that will get things going again for you! If not, then you should contact your mobile service provider for formal support.
Good luck!
VIA | sdgardne
http://supportforums.blackberry.com/t5/BlackBerry-Curve/9380-unable-to-get-3g/td-p/1748391
I found this problem happening with release 7.1.0.523 (or 569) on the all BlackBerry models. Try upgrading to 7.1.746, the current release for the 9320. Although this update is for a different carrier, there's an easy way around that, see this page for links and instructions:
http://crackberry.com/official-os-710746-now-available-blackberry-curve-9320-and-9220-xl-indonesia
* BONUS: This update adds the ability to customize the LED colours for incoming calls, and texts, and other notifications. *
VIA | xe77
http://supportforums.blackberry.com/t5/BlackBerry-Curve/BB-logo-next-to-my-3G-coverage-keeps-on-disa...
Under the Mobile Network settings you might have set the Network mode on "2G" while you should have it on "3G and 2G" (or only 3G, but that's not as stable). Do you know what I mean?
VIA | habbitzz
http://supportforums.blackberry.com/t5/BlackBerry-Bold/My-Blackberry-Bold-9790-not-getting-3G-networ...
Please thank those who help you by clicking the button.
If your issue has been solved, please resolve it by marking "Accept as Solution"

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could be an old sim card if its two years old or so it might be wise to get a new one, also can you exchange your unit or go to nokia care and see if they can make some assessment as to what might be going on ?
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Network signal is off in my Blackberry 8320

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