Database Users

Radios: Big confusion here!

I've been following the developments on the recent radios, including the 2.08.50.08_2 radio thread and i must say i'm very confused. I am under the impression this is a TMOUS radio and from what i gather, TMOUS hardware is not the same as the original leo, especially the radio hardware. And yet i see all these people eager to flash their original leos with these new radios.
My question is: do we know for a fact that these radios developed for TMOUS are being developed with backward-compatibility with the original leo hardware? Is it not risky to flash our phones to run radio software against hardware it is not developed for?

wingm4n said:
I've been following the developments on the recent radios, including the 2.08.50.08_2 radio thread and i must say i'm very confused. I am under the impression this is a TMOUS radio and from what i gather, TMOUS hardware is not the same as the original leo, especially the radio hardware. And yet i see all these people eager to flash their original leos with these new radios.
My question is: do we know for a fact that these radios developed for TMOUS are being developed with backward-compatibility with the original leo hardware? Is it not risky to flash our phones to run radio software against hardware it is not developed for?
Click to expand...
Click to collapse
its the same phone... so same hardware.

that would explain the poor audio quality i get with radios 2.07 or above. However only a few people seem to have this problem. Others report good quality, reception and battery life.

pencilcase said:
its the same phone... so same hardware.
Click to expand...
Click to collapse
It would be nice to throw in a link or two of sources that state that the T8585 and T9193 have exactly the same hardware, otherwise it's just your opinion.
T8585 runs on 850MHz while T9193 runs on 900MHz, how do we know TMOUS radios are compatible with our original leo's 850MHz working frequency?

Also if some mod could move this to the general forum, i just realized i posted it in the ROM forum.

wingm4n said:
I've been following the developments on the recent radios, including the 2.08.50.08_2 radio thread and i must say i'm very confused. I am under the impression this is a TMOUS radio and from what i gather, TMOUS hardware is not the same as the original leo, especially the radio hardware. And yet i see all these people eager to flash their original leos with these new radios.
My question is: do we know for a fact that these radios developed for TMOUS are being developed with backward-compatibility with the original leo hardware? Is it not risky to flash our phones to run radio software against hardware it is not developed for?
Click to expand...
Click to collapse
very good question. would like to know that too.

wingm4n said:
T8585 runs on 850MHz while T9193 runs on 900MHz
Click to expand...
Click to collapse
It's the other way around...the T8585 runs at 900/2100Mhz and the T9193 runs at 850/2100Mhz otherwise I believe they are identical (no proof, just what i've read).

I'm using 2.08.50.08_2 on my UK HD2 and it works fine, battery life seems better so it's all good!!

EddyOS said:
I'm using 2.08.50.08_2 on my UK HD2 and it works fine, battery life seems better so it's all good!!
Click to expand...
Click to collapse
same here! battery life is definately much improved with this radio.

wingm4n said:
how do we know TMOUS radios are compatible with our original leo's 850MHz working frequency?
Click to expand...
Click to collapse
The fact that those who have flashed to radio 2.08 have been able to with no loss in quality and improved battery life.

romac said:
The fact that those who have flashed to radio 2.08 have been able to with no loss in quality and improved battery life.
Click to expand...
Click to collapse
some have reported higher temp from the back of their devices.

look i'm not saying that it doesn't work or even that it probably doesn't, i'm just wondering if all these good folks flash it because they know it's the same hardware or because they assume so

wingm4n said:
look i'm not saying that it doesn't work or even that it probably doesn't, i'm just wondering if all these good folks flash it because they know it's the same hardware or because they assume so
Click to expand...
Click to collapse
I flashed to 2.08 on a UK Leo knowing if it didnt work i could always go back to previous radio. The decision was not hardware related

romac said:
The fact that those who have flashed to radio 2.08 have been able to with no loss in quality and improved battery life.
Click to expand...
Click to collapse
not true in all cases!

The physical transceiver in the US release may be different but that doesn't matter to the Radio stack software that these guys are flashing

Starfury said:
The physical transceiver in the US release may be different but that doesn't matter to the Radio stack software that these guys are flashing
Click to expand...
Click to collapse
english please?

Starfury said:
The physical transceiver in the US release may be different but that doesn't matter to the Radio stack software that these guys are flashing
Click to expand...
Click to collapse
what makes you say that, pls explain.

gianton said:
what makes you say that, pls explain.
Click to expand...
Click to collapse
Radio antenna's have to be "tuned" to the required frequency bands in order to optimise performance. This is usually done by changing the physical length of the antenna and/or using different passband filters.

Ever take an old radio apart? there are (usually) square metal blocks with what looks like a screw head in the top. That can be twisted to alter the working frequency, the rest of the radio doesn't need to be rebuilt/programmed for it to work. Same when Channel 5 started in the UK, they emplyed loads of people to twist a small screw in the back of VCR's to retune them.
Same with the radio's in our HD2s, the hardware will be the same in each unit, just the frequencies pre set differently. The radio stack shouldnt make any difference from one unit to the next, (except of course the internal operation of the stack, , battery life, etc)

samsamuel said:
Ever take an old radio apart? there are (usually) square metal blocks with what looks like a screw head in the top. That can be twisted to alter the working frequency, the rest of the radio doesn't need to be rebuilt/programmed for it to work. Same when Channel 5 started in the UK, they emplyed loads of people to twist a small screw in the back of VCR's to retune them.
Same with the radio's in our HD2s, the hardware will be the same in each unit, just the frequencies pre set differently. The radio stack shouldnt make any difference from one unit to the next, (except of course the internal operation of the stack, , battery life, etc)
Click to expand...
Click to collapse
sorry for dumb question but are you saying that TMOUS roms will work just fine on T8585?

HD2 with At&t US

Hi, i have a HD2 unlucked using it with AT&T US. the signal is quite bad, i dont have 3g at all, ive realised the bands dont match up but is there any way to increase signal strength or something. The signal is ridiculous at times where i have no signal at all in my house.

try different radio
http://forum.xda-developers.com/showthread.php?t=669733

Unless you bought a T9193 (look below the battery cover, is there a "Next G" or "T"?), you won't get 3G.
You might have luck playing with different radios to see if you get better coverage. See http://forum.xda-developers.com/showthread.php?t=713977 for more info. If you have a TMobile HD2, then you might want to check the other HD2 forum: http://forum.xda-developers.com/forumdisplay.php?f=631
If you have any questions, read up on the Q&A forum either way.

thats why I was asking about best/latest Radio Version for AT&T. Is your Radio Version the same as mine, identified in earlier post about AT&T Radio Version?

I have at&t (but I am using a t9193), I am having good results battery & signal w/ radio 2.12.50.02_2 (link in my sig)

what exactly do i do with these radio roms?
sorry im new to this whole thing and dont know alot. thanks

Arkalos13 said:
what exactly do i do with these radio roms?
sorry im new to this whole thing and dont know alot. thanks
Click to expand...
Click to collapse
HSPL from here
grab a radio file from here
follow the steps here

Non-U.S. HD2 are not compatible with TMOUS 3G regardless of the radio Rom being used. A more current ROM may provide a better basic 2G/GPRS signal.

[Q] Forcing 3G on T9193 HD2

Success! Flashed my 1st ROM and 1st Radio. I know that to the guru's here that's no big deal but it took a lot of nerve to risk my $500 investment to the mercy of my newbieness and potential to brick it.
Now I have a few more in-depth questions for the very helpful staff around here.
I flashed Radio Leo RADIO 2.07.50.27_2 on a suggestion I saw in a thread here that stated it was the best to use on AT&T in the US. I had the stock Radio at first. I am running Artemis v331_0409_WWE which seems very well behaved and has just about all I need less the typical bloatware.
My question(s)...
What is the difference in features/performance between the stock Telstra Radio, the generic OEM radio from HTC, and the radio I have flashed? Should I be seeing any sort of improvements?
I ask this because I see all the radios published for downloading but not much on specifics as to features or benefits.
I am also interested in forcing my HD2 to stay (forced) on 3G and stop dancing back and forth between 3G and EDGE. Is that possible?
I have good signals for both 3G and EDGE but sometimes the EDGE is stronger and it drops down to it and screwing up my connection speed to a crawl.
I know that in the TMO ROM on a TMO HD2 it had the ability to select the bands (at least that's what I recall). Do any of the Radio Gods around here know how to do this or any Cooks know if this is even possible?
Any answers on this would be greatly appreciated.
Thanks!

Answered my own question
After some creative searching I found an answer to the "forcing 3G" question.
Why HTC buried the band settings in a phone menu beats me. But, I found the answer. I was hoping it would have been in a more logical place like wireless connections, but hey... what do I know.
I'd still appreciate some specifics on my radio questions as I'm not looking forward to flashing every conceivable radio to see which one works if I can at least narrow it down by getting some recommendations for the best one to use on AT&T.

there are no differences between those three radios except for version.when you are trying radios you need to run them au least a day if not two to get any idea for comparison.

Wait, you're getting 3G on ATT with the TMOUS? How are you forcing it to 3G? I thought we were stuck using Edge!

apallohadas said:
Wait, you're getting 3G on ATT with the TMOUS? How are you forcing it to 3G? I thought we were stuck using Edge!
Click to expand...
Click to collapse
I did not say anything about 3G on TMO, the thread is regarding the T9193 (Telstra), not TMO branded.
Yes, I am getting 3G on AT&T, but its with a T9193. TMO's version has different hardware with a different Radio Chip frequency. Flashing does not change that since it is hard coded in the Radio chip.
Sorry.

samsamuel said:
there are no differences between those three radios except for version.when you are trying radios you need to run them au least a day if not two to get any idea for comparison.
Click to expand...
Click to collapse
If there are no differences then why are there different versions? Doesn't make sense to me. I'm not arguing your point but I am curious as to why a new version Radio is released if there are no differences. That would be like Microsoft releasing Windows 7 version xxxx12345.0 and then releasing version xxxx12345.678.1 and doing so for no apparent reason.
From what I've read, there must be a difference if the performance is different so it would indicate to me that there must be some tweaks on some parameters. I'm trying to find out what those parameters are and what they affect.

Oh well! That'll teach me to read more closely!
Sent from my HTC Desire using XDA App

[Q] MyTouch 4G Radios

I've been reading a bunch and I'm kinda curious about the radio (baseband) firmware on the MyTouch 4G--or on Android phones in general if they aren't device-specific. Can anyone provide some good resources on the subject? What do they do, how do they work, and so forth?
Additionally, are there other radios that work on the MyTouch 4G? If so, how do they differ and what benefits do some have over others? How does someone flash a new radio to the device?

This should be moved to Q&A if it hasn't already.
Sent from my rooted HTC Glacier using XDA app

i'm under the impression that you came from a WM phone cause i know on my TP1 and VX6800 you could interchangably use verizon and sprint and some other radio roms. though this thought has perplexed me as i havent seen any info on radios on the MT4G. i guess i'll sub this and see what happens

Radios are indeed device specific, in some cases OS specific. Attempting to flash to a random radio off another device will almost certainly net you a brick. You should only use radios made for the MT4G and the version that the rom you have chosen recommends.
I wasn't even aware there was a new radio version out for the MT4G?
A radio is flashed the same way as a rom, just boot into recovery and flash the update.zip.
I'm not sure how to fully explain what the radio firmware actually does, but I know its not something to tinker with.
Sent from my HTC Glacier using XDA App

Sorry, search is temporarily unavailable. Please try again in 10 minutes.
Click to expand...
Click to collapse
Its like every freaking time I try to use XDA search to find my own post it fails, WTF. I don't feel like retyping it at 2AM ill edit this post later on when search works again and post it.
UPDATE: For god sake its still out.
Anyways radio normally controls your wireless interface gps, voice, data, wifi, bluetooth ect. Along with power and other memory functions whichs as stated you mingle with you will certainly brick it. Far as radio rom goes I too when first came here was looking for master radio thread as only radio I found is the stock one so not much dev going there.

It seems like, in case of newer HTC phones (such as G2 and MT4G), radio firmware also controls emmc read/write capablities of the chip (don't quote me on that) so most definitely NOT a good idea to tinker with it.

STHNS said:
Far as radio rom goes I too when first came here was looking for master radio thread as only radio I found is the stock one so not much dev going there.
Click to expand...
Click to collapse
Errr, has any Android developer ever modified a radio image before? As far back as G1 days I cannot remember any of them touching this. I do know some find leaked new ones or ones from different countries and posting them, but not modified.
Switching radio images is not recommended as it, along with your SPL (bootloader) are the 2 images that can brick your phone. Most people will NOT flash their radio unless its a huge improvement to your phone.

Thanks for the responses fellas. I don't plan to screw around with the radio on my phone, it just seemed like there wasn't much information available about the topic in general, and I'm genuinely interested in knowing how stuff works. Any resources or links on the subject are appreciated.

Radio on G2

Im new to modding of my tmobile G2, but Im seeing things about updating the radio. What exactly is the radio? Do you mean as in a normal FM radio? Or does radio have something to do with the way the G2 receives cell phone signals?
Also if there is a updated "radio" which one is the most stable and provides best quality? I am running CM-7.1.0-RC1-vision. with Nightly v. 1.86...

The best way to describe it would be the software that interfaces with the hardware radio that allows you to send/receive data on the device.
Updating to a different radio CAN improve signal/speeds, but it can also reduce signal. Unless you're confident in switching radios often and doing testing, its best to flash the radio recommended for T-mobile USA's 2.3 release. I'm using this one and it works just fine for me.
Different people have different results, and really it depends on your location and use case which radio works for you. There's no "perfect" radio for everyone.

If your phone is working as it should don't mess with the radio please.
Sent from my HTC Vision using XDA Premium App

Spastic909 said:
If your phone is working as it should don't mess with the radio please.
Sent from my HTC Vision using XDA Premium App
Click to expand...
Click to collapse
I'm all for what Spastic909 said. Messing with the radio without knowing what it does WILL brick your phone. However if you wish to research and ask more questions then please do as I do not want to discourage you from modifying your phone, after all this is how you will learn. The Android Development sub-thread is a wealth of knowledge for those who wish to learn.
Please read through the following thread to get a better understanding of the radio and what it does.
HTC VISION RADIO's (PC10IMG.zip Update Files & .img files)
[REF] The HTC Vision (Desire Z & G2) Radio ROM & Official BLs Thread