Repair guides for Android cell phones manufactured by ALCATEL One Touch.

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"Invalid Sim Card" message/ Error: ER05

I tried following the instructions here https://support.t-mobile.com/docs/DOC-33..., because I am currently using t-mobile, but it didn't seem to help me. How do I make the message go away? (I don't care about Wifi calling btw).

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It's an "alcatel one touch fierce 2" BTW.

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Chosen Solution

I put my SIM card in the SD slot but upsidedown. We traded in phones.

Thanks for trying to help!

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Hi,

Have you tried turning OFF WiFi Calling in your phone or make the cellular network the default option?

Go to Settings > Wireless and Networks > more > WiFi calling

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I tried this but I still can't text and it doesn't make the message go away.

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Hi, Just a thought, have you contacted T-Mobile that you do not wish to be "registered" for WiFi calling on your service?

This is from the user manual for your phone:

"Wi-Fi Calling lets you make and receive voice calls and text /multimedia messages over your Wi-Fi network when your phone is connected to a Wi-Fi network and registered with your wireless carrier's network for Wi-Fi Calling."

You may also wish to ask them about your SMS problem

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