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I think your mobile is locked to a particular network so that your Blackberry 6280 says invalid Sim when you put your Sim in it. Find your locked network and unlock it to use your mobile with your Sim. You can find your locked network by switch off and switch on your mobile. At the top of your mobile screen the logo of that locked network will be displayed. After finding your network unlock your mobile using unlock code. Get the code from the site Wickedunlock.com ,and unlock it yourself using unlocking instructions which is given in the site itself.
If the Phone says invalid Sim card means it locked to some network,You need to Unlock it.....You can Unlock the Phone,using the Unlock code from here Superunlockcodes and Unlock it.Check code for Your network lock and Country and Unlock it.....Then after unlock it you can use any GSM Network Sim card in the Phone,.
i have a pda mobile "Cell Phone MP3 MP4B55" so i am led to believe however i have no way of putting pictures or music on it as i have no disc to upload on my computer.I was wondering if there is a website i could use or something else you could suggest to me? also my camera doesnt work and i am unable to find how to switch my bluetooth on can you help me please? x
Blackberry Technical Support team on the WEB is place to seek an answer.
Or any documentation that came with the device
From what you say- and I am not an expert with CellPhone devices/Systems- there appears to be no service available in your part of the world.
Check out Blackberry
I would suspect the mainboard of your pda at first. But for the begining you should try to clean the contacts of your sim slot and check to see if all of them connect properly to the sim card. If all of them do connect properly, my second gues would be that the pda doesn't power on the sim card. Like memory cards sim's need to be powered first in order to work. Most pda that have this problem fail to initialise a sim because they can't suply the 3.3 or 2.7 volts needed due to a hardware mailfunction. However this test should be runned by a service center, they will have to dissasemble your pda in order to check these.
In your case, you can make a hard reset and check the sim card pins in the pda. If this doesn't help, you will need service assistance.
I'm sorry for not being able to help further. Good luck.