Questions tagged [radio-firmware]

For questions concerning the "radio firmware" (the part you might think of as "BIOS" or "hardware abstraction layer" of your device)

What is "radio firmware"?

Radio-Firmware provides the lowest level hardware access to your device. It is specifically tailored to the chips used, so to say. If you brick this, you're usually done with your device, as there's no way of communicating with the hardware without it.

You can think of "radio firmware" as either a "BIOS" or a "hardware abstraction layer", providing a defined interface to the device's operating system. In fact, the "radio firmware" has nothing to do with Android (or whatever is running on the device) -- as the BIOS on your computer doesn't care whether you install Linux or Solaris or whatever.

Related tags

  • : this usually refers to the Android system as such. See its tag-wiki for a lot more details.

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What is radio firmware?

When installing a custom ROM onto a rooted Android device, they often recommend to upgrade the radio firmware. What exactly is Android's radio firmware?
spong
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Android emitting RF at X frequency

First, nothing illegal heare. My (ours) gate remote controll have broken (all 5). The provider have gone - death, bankrupt, I don't know. The remote have no logo or some ID, but the instructions are kind to tell me that transmission frequency are…
cox
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How to unpack Android's radio.img file

Android images (e.g. those for nexus) ship with a radio-(version).img file. I wanted to unpack this file to look at its contents. I tried using simg2img, as is done with system.img, but that approach didn't work for this file. I know that for…
Jake
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Transmit at the 300 MHZ - 400 MHZ range

Is there any piece of hardware in a modern Android phone (Galaxy S5+) that can transmit at the 300-400 MHZ range? If so does this require cracking the radio ROM or is there a simple way to do this?
Mikeb
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