![]() ![]() How frequently must this issue occur before I can tag it “abnormal”? Hardware issue: Either the SIM slot or the radio hardware is damaged.The phone is set to 3G/4G only in an area where 3G/4G is unavailable: If you set the Blackberry to 3G or 4G only in an Edge only area then its only logical for your Blackberry not to detect any signal.Network selection mode is set to manual and no network is selected: Setting network selection mode to manual without selecting the correct network is a drowning ship.The Blackberry is locked to another service provider or network: A Blackberry locked to a particular network or service provider will only support the SIM cards of that service provider.The Blackberry OS has encountered a temporary error: The Blackberry OS might have encountered a memory issue or partially crashed due to some rogue process.You’re in an area with poor network coverage: You could be in an area with very poor signal or your service provider is having issues at the moment.Network control toggle is set to OFF: The network control toggle might be set to OFF.The SIM slot being corroded: A corroded SIM slot could hinder proper contact with the SIM card.The SIM card being damaged or deactivated: The SIM card in question might be damaged or have been deactivated by the service provider.The SIM card not being properly inserted: If the SIM card is not properly inserted then you shouldn’t exactly expect the Blackberry to detect it properly or detect signal.What could cause a Blackberry not to detect SIM cards or signal?Ī Blackberry device not detecting SIM cards or signal could be as a result of a series of potential software issues (see for Android) or hardware issues. In this tutorial, we’ll not only be demystifying the issue of a Blackberry not detecting SIM cards or signal but also recommending some known & working fixes. Did I hear you say annoying? The issue of a Blackberry not detecting signal or not even detecting SIM cards at all is rather common and mostly not so difficult to fix. A typical scenario is when your friend has full signal on his Nokia torch light phone and you have SOS on the same network on your Blackberry. The Blackberry radio isn’t exactly one of the best radios to come to devices.
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