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Karbonn k451
Sim1 not working, showing invalid sim

My karbonn k451 sim 1 is not working, when i put sim card it shows invalid sim, but i can browse contacts, messages etc... Sim2 is working no problem .please tell me how to solve this problem, plzzzzzzzzzz

Author: Shihas

Company: Karbonn k451

Country: India State: Kerala City: Thiruvananthapuram

Category: Electronics and household app.

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