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

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14
votes
4answers
14k views

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?
1
vote
1answer
6k views

Which modem firmware for Samsung Galaxy S (GT-I9000) works best with the mobile networks in Russia?

Trying to use a Samsung Galaxy S device coming from China or Korea in Russia lead to the observation that the quality of the connection to the mobile network is much worse than on Samsung Galaxy S we ...
0
votes
1answer
428 views

How to manually replace ones RIL

Is it possible to manually replace the RIL on a Samsung Galaxy S2? I had previously flashed my device with CyanogenMod but lost my stock RIL due to careless use of the GetRIL app, so currently have ...
0
votes
2answers
2k views

Samsung Galaxy S2 drops carrier network

My SGS2 is dropping it's network connection multiple times a day without any notification. The signal bars disappear and it just says NO SERVICE/VODAFONE NZ. No data, no 3G, no 2G, nothing... I was ...
-1
votes
1answer
120 views

Can an app detect a radio signal when running in the background with the phone in standby mode?

Also, could such an app detect a specific frequency (using either the cell tower antenna or wi-fi sniffer)? I would like to use a radio transmittor to activate an app to perform a function even while ...