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[Q] How-to flash radio with S-Off

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Dooxed
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(Last edited by Dooxed; 13th December 2013 at 02:30 PM.)
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Default [Q] How-to flash radio with S-Off

I'm running CM 11 nightlies on a S-Off HTC One S with hboot 2.15.
I would like to upgrade the radio, because I have no 3G data connection atm.

Most guides which I found are for the case of having no S-Off, i.e. S-On.
My best guess therefore is just to flash firmware.zip using fastboot.

However, I am unsure how to get the radio only from the latest OTA's. Inside there is the firmware.zip (in ROM.zip), which has much more than only radio.img. As far as I understand the how-to's, it is not possible to directly flash radio.img, but flashing a zip with fastboot is possible (I also tried flashing the radio.img directly, fastboot gives me 'not allowed' as expected).
The firmware.zip from the OTA is correctly packaged (it has a android.txt or so and is signed). Can I extract the radio.img, put it in a firmware.zip with the extra android file and sign it myself somehow?

Much thanks for your time!
 
Dooxed
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Quote:
Originally Posted by Dooxed View Post
Most guides which I found are for the case of having no S-Off, i.e. S-On.
My best guess therefore is just to flash firmware.zip using fastboot.
1) With S-Off, any partition is writable if you use the trick described here.

2) Firmware.zip from OTAs and RUUs also contains other stuff next to radio, such as bootloader (hboot), recovery etc. Get the firmware.zip from the OTA or RUU and extract the radio parts: radio.img, wcnss.img, and adsp.img and follow instructions at 1.

3) Can anyone explain what wcnss.img and adsp.img exactly are?
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