How to switch the GSM/3G module off?
I only use my smartphone (Samsung Galaxy Chat) as a "pocket computer"
(with WiFi) and don't use it to make telephone calls (I use a dual-SIM
"dumbphone" for this). All the time it shows a cellular network signal
indicator and reports that it can make emergency calls. Can I switch it
off to save battery?
Some years ago, when I had a Benefon Esc! GSM+GPS phone, I could
independently turn its GSM and GPS modules on/off. I wonder if this is
possible in modern day smartphones.
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