Shuts down, no signal and battery problems only with sim card inserted
I have 3 iPhones with the same symptom. Battery goes down quickly, shuts down or no signal ONLY when you insert de SIM card. I've tested all these 3 iPhones with no SIM card, and they don't shut down, no baterry drain. I've tested with several SIMs cards that work perfectly in other devices (I mean other iPhones)
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I also concluded the same. In my case it seem batteries got faulty as I moved to 110V country from 220V and used a voltage transformer in front of adapter to charge the phone. It did something bad with the batteries. Though phone works fine when on charging. It shuts down only when I try to place a call. Thanks for this ans
- de Tarvinder Singh