This blackberry curve 8900 no signal problem is caused by a liquid or water damaged.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQjhKwNAMAHkQNlOCN8iSWQmpxgvXaw8y-u33JPrjyUt2Urv4Y3kdyt88RI2HzthkYRpcXZHjUarAA9JVizNRaCzSHswrYMdXnRfRLhkkfvvk1Iby6wZNw2HIPCyEPXeES5jSZbJowq_0/s1600/blackberry+8900+no+signal.jpg)
This solution can be used or applied only if same things happen also to your blackberry curve 8900. In picture one it shows that a a supply voltage to the RF amplifier is missing or being cut due to a damaged or corroded resistor,
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdQm4fhQfVSLM5uEmsawbukkPYQJF18_DvAEDJ3jGQJwi4JIwwQrCulbZDfs_suzn0BijEbfdlfQHH0M1CmypnB0s9-E6ouV9wFSflJ7yz_8KEmrFKyJs_RdvtJYOzLfTHH_OY7IqWsLM/s1600/blackberry+8900+no+signal+2.jpg)
In picture 2, a jumper wire is being applied to sustain the necessary supply voltage to the RF amplifier IC.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQjhKwNAMAHkQNlOCN8iSWQmpxgvXaw8y-u33JPrjyUt2Urv4Y3kdyt88RI2HzthkYRpcXZHjUarAA9JVizNRaCzSHswrYMdXnRfRLhkkfvvk1Iby6wZNw2HIPCyEPXeES5jSZbJowq_0/s1600/blackberry+8900+no+signal.jpg)
This solution can be used or applied only if same things happen also to your blackberry curve 8900. In picture one it shows that a a supply voltage to the RF amplifier is missing or being cut due to a damaged or corroded resistor,
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdQm4fhQfVSLM5uEmsawbukkPYQJF18_DvAEDJ3jGQJwi4JIwwQrCulbZDfs_suzn0BijEbfdlfQHH0M1CmypnB0s9-E6ouV9wFSflJ7yz_8KEmrFKyJs_RdvtJYOzLfTHH_OY7IqWsLM/s1600/blackberry+8900+no+signal+2.jpg)
In picture 2, a jumper wire is being applied to sustain the necessary supply voltage to the RF amplifier IC.
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