Privacy for me has been incredibly rewarding, but when talking to people who haven’t been introduced to privacy, there are occasionally some moments that make it exhausting. One conversation in particular is one that I’ve had to go through dozens of times, and it always goes along these lines:
- Alice: Why is your phone in airplane mode? / What’s your phone number?
- Bob: I don’t have a carrier.
- Alice: But you have a phone.
- Bob: Yes.
- Alice: How do you not have a carrier?
- Bob: Phones can come without a carrier.
- Alice: What do you use it for?
- Bob: Everything you use yours for.
- Alice: How do you talk to people?
- Bob: Messaging apps over Wi-Fi.
- Alice: What if you don’t have Wi-Fi?
- Bob: Public Wi-Fi is everywhere. If I don’t have Wi-Fi, I likely don’t need to get in touch.
- Alice: What about emergencies?
- Bob: I can still contact emergency services.
Each time it happens, it has a unique flavor. One person accused me of lying and then fraud. I know people are just curious and don’t mean to be rude, but it makes me die a little inside every time someone asks. I’ve begun trying to sidestep the conversation entirely:
- Alice: Why is your phone in airplane mode?
- Bob: To save battery.
or:
- Alice: What’s your phone number?
- Bob: You can contact me with an app called Signal.
People seem to think that a phone automatically comes with a carrier and that it’ll stop working if you don’t have one. In reality, I’m saving hundreds of dollars per year while avoiding spam, fraud, breaches, surveillance, and being chronically online. People have a hard time coping with those who do things a little differently.


I achieve the same by disabling VoLTE and VoWiFi and setting the phone to LTE only in
*#*#4636#*#*.I love these service menus.
*#*#3646633#*#*has so much stuff to permanently screw up on some MediaTeks. But also some useful ones like selection of frequency bands, or even specific frequency and cell id.But yeah, some settings can persist factory reset, and some may even be illegal like Tx tests (verified that it does transmit garbage on selected frequency with SDR) or IMEI change. Not all settings are on all devices, and they may even be partially broken.
But yeah, these settings are don’t touch it for the most part (some are just huge lists of undocumented variables). Some don’t even seem to be resettable from the menu, I mean menus where you select one option, but by default they are unset. And the band mode selection on Moto G54 5G was… interesting. Rather than a nice selection menu, you can type in a number and select to add or remove it from a vector variable for 4G and 5G. Of course, nowhere does it list valid options or give a reset button.
And lastly a thing that serves me as a warning for future, when I was playing around with a leaked service program for some Realtek Ethernet adapter, I found out what eFuse memory is. There is no going back.
If you didn’t yet might want to play with Precursor