yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TheEnternal:
On I727 ATT& Skyrocket with Tmobile in Gainesville FL, stock kernel

I'm not sure if my phone is still messed up or not from the hercules flash

Was originally on UCLL3 with no issues on CM10.1 4/19/13

Was up late one night and wasn't paying attention and flashed the Hercules CM10.1 and UVMC6 with ril, things were all messed up

Now on Skyrocket CM10.1 6/19/13 and get the following results

Blaze4g UVLH5(nothing)

ICS I757 MUGLH2 (nothing)

SHG-T989D_TLMC4 (Ok 3kdata mostly 3g sometimes HSPADC, ok sig)

SGH-T989_UVMC6 (bad data, bad signal)

SGH-T769 UVMB1 (2k, low sig)

T879-UVMA1-(only connects for a second)

T727-UVMC1 (Edge only, strong signal)

Coworker on Stock Hercules with JB getting 5k data over 4g

Should these other modems be working for me to some extent?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Yeah there should definitely be something with the other radios.... don't you have any nandroids to go back to?? Then flash the radios after your nandroid restore
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TheEnternal:
Unfortunately not, I bought this phone used already with a custom ICS rom running. And quickly went to CM 10 and changed the radio over.

I tried going back to stock on 6/20/ and starting from scratch, but the issues still persist. I'm guessing that going back to stock rom through odin doesn't affect the RIL and i think that what my problem might be when I accidentally flashed the hercules cm 10.1 and modem with ril.

Going to search around and see if I can find the stock att modem wtih ril, then try the tmobile. I'm not too sure if my logic here is correct so if anyone has a better idea, I would greatly appreciate it :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
I have the solution. Cm 10.1 requires ucmc radio. Cm10.1 and a lot of ROMs come with built in rils when you flash them. Try cm10.1 with ucmc and report back if it doesn't work... or just thank if it does:)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TheEnternal:
Yea, I ended up seeing they made that change. UCMC is similar to UVMC for me in that I get a really strong signal, but edge only. My coworkers on their Hercules are getting 7-9k beside me.

I guess I should change from CM 10.1 then, I love it but having fast data is sorta essential :). Guess ill read up on some ideal configs, and I will to make sure there is a new ril flash
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Please Do Share Anything that works for you because i'm facing the same problem. Thank you.

Stuck on 2g Everywhere. I'm just waiting for note 3 to come out soon.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TheEnternal:
I ended up using jedimindtrick like aimless rambler did on the prior page. All skyrocket cm10 based roms had the same trouble. On Jedi all those prior radios are working and I'm getting 9k on uvbm1 :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
I would venture to guess that you're not in an area with the T-Mobile 1900mhz reform and that's why you're getting 2g network. On another note, I regularly flashed a radio off the Hercules that included ril files and never had any problems before on the same ROM as I am currently on, actually haven't flashed a new ROM in prolly 6mths now.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
I have got a Question about flashing roms. So whenever you flash a T-mobile rom do you need to flash it in cwm or twrp and Do you need to flash any other files with it?

Thank you. My area is re-framed for 1900 mhz and does have lte since my cousin get lte on his iphone 5.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
I'm confused as to what you mean. I believe you mean when you flash a T-Mobile radio, as the ROMs have no carrier affiliations. And you can flash it in either twrp or cwm, whatever you prefer. If it is refarmed for 1900mhz and lte then you should be able to get both on stock skyrocket radios tho, no real need to flash T-Mobile radios.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] cmbezln:
how are you guys getting Jedi to work on skyrocket? I tried the conversion kit and now I just boot loop
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Jedi, conversation kit? What's that?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] KingKron:
I have been running my rocket on wind since I got it. TLMC4 seems to be the best radio to use. TLLE4 Is decent also. I've used them with Ortheus X, JellyBeer, Pacman, and now On Miui.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] yeshivabachur:
Cyanogenmod 10.1

does anyone have a radio that can get me HSPA+ and LTE on T-Mobile on CM10.1?????
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
http://xdaforums.com/showthread.php?t=2228292 Don't forget to thank him
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] yeshivabachur:
combination

what kernal,rom, did you have before flashing cm10.1 and does hspa+ stick? or you get 2g?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
Pacman 4.1.2 with stock kernal I believe. I have always had h+ until recently when t mobile turned on lte in my area. Hope all goes well for you… but you might be in an area that only gets 2g

Edit: this one http://xdaforums.com/showthread.php?t=1973488 be sure to thank him too

Edit again: the most recent one v19.0.0
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Krakozawr:
I'm in NYC now with Skyrocket on T-Mobile.

Just yesterday I was trying different radios, and I have a strange results.

Only one radio provide a good signal is T989 TLMC4. but with this radio I have H or DC (?), not LTE

With i727 UCMC1 I have LTE:13 with fast.t-mobile.com APN but I have terrible signal (just 1-2 bsrs on indicator).

What is a solution?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
Krakozawr : No solution here... T-Mobile S2 or T-Mobile note radios will connect to T-Mobile using gsm protocols (and EDGE data) , because those device are not LTE devices...Which normally gives you best signal... T-Mobile LTE signal is still not very strong in a lot of markets and has to be accessed using different radio chip which can only work when you flash the stock skyrocket modems (like UCMC1)..

Bottom line : you would either live with LTE and a low signal or EDGE and a strong signal...

And if I'm not mistaken, the signal bars you see when you're connected to LTE has no relation to the "call" signal... Data and voice are handled using different radio techniques...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Krakozawr, have you tried using the i757m radios? These radios include all the skyrocket frequencies incl. LTE, and also include the standard T-Mobile frequencies. If you'd like to alter your signal strength then I'd suggest getting a ROM that you can choose your connection ( i.e. use 2g only and/or hspa and LTE switching). Hope it helps.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
I757m doesn't have AWS 1700/2100 for HSPA+ (so it doesn't connect to T-Mobile HSPA in non-refarmed areas)...It has LTE band 4 (just like the skyrocket)...

So "it supports all T-Mobile frequencies" is not true...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
So the t-mobile radios don't connect to umts/hspa?

Also you guys keep talking about the AT&T UCMC1 radio, but forget about Rogers RUXUMA7. Imho it's the better one since it allows you to change modes (2g/3g/lte).
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Yes actually it does have the AWS 1700/2100. And I can confirm it connects in non refarmed areas as well.

---------- Post added at 11:11 AM ---------- Previous post was at 10:58 AM ----------

Compare specs if you like. It supports all T-Mobile frequencies including those areas that are not refarmed.

http://pdadb.net/index.php?m=specs&id=2894&c=t-mobile_samsung_sgh-t989_galaxy_s_ii_samsung_hercules

http://pdadb.net/index.php?m=specs&id=3714&c=samsung_sgh-i757m_galaxy_sii_hd_lte_samsung_dali
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
/\

Give me a solid reputable proof , I mean like Samsung official website, gsmarena , Bell official page or those well-know names...In addition to that, this radio was available for sometime now and it wasn't helpful for many people using their skyrocket on T-Mobile(before the LTE and refarming started)...Most of those had T-Mobile hspa only when using Hercules and blaze radios

Wtf is pdadb.net ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
For those in San Francisco, it looks like T-Mobile's LTE is working quite well.

This was done on a UCMC1 radio on Beanstalk.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
Nice speed jedah ... If you're on stock dial *#0011#

Take a screenshot and post it here, it seems your area is a 10mhz spectrum for T-Mobile LTE..
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
I'm guessing, by stock, you mean Touchwiz? Is there by chance a similar code for AOSP?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
Yes... Stock is touchwiz.,

No.... No similar code for aosp..

As long as your upload exceeds 14mbps , you're in a 10mhz LTE bandwidth market..
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
Don't spread false info please... Read this

http://xdaforums.com/group.php?do=discuss&group=&discussionid=2268

Those owners of i757m couldn't connect to wind data(it uses AWS for 3G like T-Mobile) until they flashed T-Mobile GN radio or the blaze radio.. The stock radio gave them EDGE only...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
Due to some issues on 4.2, I flashed back to a 4.1 Touchwiz rom, and dialed the code. San Francisco is indeed a 10Mhz bandwidth market.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] foolhardy:
I just read the first twelve pages before realizing that:

A: they were a year and a half old and

B: there are 53 pages in this thread

Would it be possible to get an updated recommended setup of rom/radio, or best radio if a specific rom is no longer required. I just purchased an AT&T Skyrocket and unlocked, rooted and put TWRP on it for use with T-Mobile and I'm trying to find out what setup will provide the best network performance.

Thank you so much for the information. I'll continue reading.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fham:
ROM/Radio setup for Skyrocket on T-Mo

Here is my setup which gives me HSPA+ on T-Mobile (most of the time) and HSPA at other. I am located in San Gabriel Valley (Eastern Los Angeles).

ROM: CM10.1.2 [JB 4.2.2] (Stable, July 11, 2013 Build)

Radio: UCMC1

Have been using various CM10 Stable builds for a about 4 months now with zero data drops or other issues. Check the attached screenshots:

Info on various radios is available from one of Vincom's excellent stickies (sorry can't find the appropriate link coz I'm in a hurry).

Hope this helps
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] foolhardy:
fham, thank you sooo much for that great info.

I have found the UCMC1 download link from mohan_kr:

The file says "cwm", presumably meaning clockworkmod. I did not realize that CWM did something different than TWRP. Does this mean that I need to install CWM to flash this UCMC1 zip?

fham, what did/do you use to flash cm10.1 and the UCMC1 zip?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fham:
I should have included the recovery info.

I am using TWRP 2.6.0.0 as the recovery. This is what Vincom recommends in his stickie [see section #5 for Radios and section #6 for Recoveries] http://xdaforums.com/showthread.php?t=1785999

It is very easy to follow. I dunno if the recommended flash path for you is from ICS ---> CM10.0 (i.e. JB 4.1) ------> CM 10.1 (JB 4.2.2)/Any other ROM of your liking, but follow Vincom's instructions and you should be good to go.

I flashed TWRP with ODIN and then placed all necessary files (ROM, Gapps, Radio) on internal SD and flashed from there.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] soupysoup:
No u can flash cwm zips with twrp no problem
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] foolhardy:
I need input on settings to get data working

post deleted because I realized that it belongs in a different thread
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Anyone have the modems listed in the op mirrored somewhere I don't have to sign up at?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] wwetzel:
Was hoping for some help, as it seems others on this thread have the same problem.

Am able to get Edge on T-Mobile, but no HSPA or LTE. LTE is available in my area and I have a T-989 that gets great speeds on HSPA.

The phone will cycle between Edge, HSPA and LTE (depending on radio) but will not stay connected to either HSPA or LTE. When they are briefly connected there is no data. I've used both the epc and fast.t-mobile APN's. The only way I can get the phone to work is to make it GSM only, otherwise it will just keep cycling and I'll even lose the Edge connection.

Have used the following roms:

Stock ATT 4.1.2

Superlite 4.1.2

CM 10.1.2

JediMindTrick JB6 (T989 Hercules ROM) w/ UVMC6 radio

Following radios

UCMC1

MUGMC5

UXUMA7

UVLH5

T-989 Radios

UVKL1

UVMC6

TLMC4

Any help would be greatly appreciated.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
try UVMB1, its in the 1stop sticky
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
If you're trying to get LTE (using UCMC1), did you make sure to switch the APN to fast.tmobile?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] wwetzel:
Just tried it with the same results. Even flashed an CM 4.1.2 since it seemed some people had better luck with the older ROM.

At this point I would like to even get HSPA. My T989 Hercules gets 10-12 MBPS. I just bought the skyrocket as a cheaper way to get LTE, and will be really disappointed if I can't get this to work.

---------- Post added at 09:11 PM ---------- Previous post was at 09:04 PM ----------

I'm using fast.t-mobile.com APN.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Anyone? I'm just trying to get 3g with the stock rom.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] wadster21:
I'm having a problem with the wifi dropping on my SR. I am able to connect and it will be working fine. Then, after a while, I lose connection and have to either disable then re-enable wifi, or toggle airplane mode on then off, for it to work again. When the connection drops, it still shows the wifi symbol in the top notification bar, but it is grayed out. I have tried the UVMB1, UVMC6, and UVMA1 radios, all with similar results. I am using my i727 on T-Mobile with CM 10.1.2 (7/11 stable build). Anyone else using their SR on T-Mobile having similar wifi issues? Any help would be greatly appreciated.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
No Wifi issues on my end with T-Mobile. I'm currently running Fresh n Slim with UCMC1 radio. I've run with UVMC6 with no problem before, too.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
You don't have to sign up to minus.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
When I do that, it takes me to another page with a bunch of what look like wallpapers. :what:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
Sorry, I didn't test it myself before replying.:silly:

Here are working links http://sourceforge.net/projects/tmoicsmodems/files/
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Thanx so much. Unfortunately none worked. Just not having any luck trying to get 3g on this phone with T-Mobile and stock 4.1.2. :(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
That's too bad. :(

Check with T-Mobile what frequencies they use for 3G/H+ in your area and compare with the ones the skyrocket can connect to with stock and other radios.

Try other roms..
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Well I know they have no refarmed areas within 30 miles of me, so pretty sure its standard around here. Even with att, down speeds are between 3-5 mbps. Now I'm having other issues with stock, so I'm seriously considering going back to slim with it. It is having insufficient memory problems, and with all the flashing modems, now its got no baseband. This phone has been nothing but a headache since giving to my son. Time to start from scratch.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
Still, this is a weird problem you're having.. The stock JB roms are a bit touchy and weird when you start rooting and what not..

Anyway, I'm out of ideas.. so good luck to you :cowboy:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Me too. I loved the rocket when I was using it, but I was also on att so didn't need to worry about T-Mobile service. As for the rest, like I said, just gonna start from scratch and go from there. Thanx for trying to help out. :thumbup:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] wadster21:
I got a tip from onealvideo that seems to have fixed the problem. See THIS post.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Bankai69b:
skyrocket rogers rom no signal bars

So i just flashed a rogers official Jellybean 4.1.2 rom onto the Skyrocket along with the Blaze 4g radio. Everything is working fine except that the signal bars disappeared. Wifi and 4g bars are showing but mobile signal bars are empty...no bars, nothing. The phone still works on Mobilicity, but I can't tell whether or not I have signal from time to time. Is there a possible remedy for this situation? I wiped everything 5 times before flashing the rom. Working phone...but no signal bars:confused: Any input would be appreciated thanks.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] drago10029:
Thought I would validate what a lot of people were saying with some speed test screenies.

I'm in NYC, so all reception is great. running the UCMC1 modem on CM10.1.2, Moretz 3.0.9. No t-mobile modems, or kernels and all is well :)

Fastest one is T-mobile LTE

Second fastest is HSPA (Listed as Cell for some reason)

Third is simply edge.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
thks, im linking this post in the radio section in the 1stop sticky, which carrier are you with, tmo or straight talk
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] drago10029:
I'm with T-mobile prepaid as of 2 days ago. I have to update my signature and glad this helps!

My skyrocket came to me unlocked, I literally stuck the tmobile sim inside, changed the APN and Wala! Also note, I'm on "Fresh N Slim" and the default APN enables LTE. Again no T-mobile kernel or ROM.

Maybe all this talk about different bands are significant outside the city, idk lol
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
very exciting! I"m planning on switching to t-mobile soon. I guess I won't need to upgrade my phone quite so quickly :D
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
The gentleman who is getting lte in NYC is probably due to being in a refarmed area. It all depends on your location. I can't get lte or even hpsa on mine in my area due to no 1700 frequency near me. I'm stuck with edge which is useless. Tried every radio available. :(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
have you tried some of the T989 modems like UVMC6 (http://xdaforums.com/showthread.php?t=1895400)? I don't think they have lte in the modem but you should get h+ just not dc-h+ or lte.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Yes I've tried everything that's posted. Only one that even gives a cell signal is the stock one with att 4.1.2. All the others give me baseband unknown or nothing but a circle with a line. I figure I'm just lucky I get texts and calls. No mms or data. Also tried all apns I've found too. Nothing worked. Oh well.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] drago10029:
I agree with you and figured that's the case since Tmo is trying to steal all AT&T customers so they need to fully support their phones as well.

Hope Lancaster gets some refarming love! lol
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] krixxux:
M919 modem on skyrocket

hey guys is it possible to flash a m919 modem on skyrocket to enable aws and lte. if possible it would be nice. btw, what ere the rules for modem/radio/baseband flashing.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
The stickies
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] nexus_2006:
Thanks for this. I'm running the exact same hardware/ROM/radio in SoCal, T-mo unlimited contract. No problems.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
Where in so Cal if you don't mind me asking? Only getting edge in Lancaster (north of LA)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] nexus_2006:
Other side of the mtns, IE area. I only get H+, if I let my phone look for LTE then I end up with only 1 bar of voice and no data.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pre4speed:
can't even get that with every radio available. If it was my phone, I'd be more into trying to get better with all different combos, but its my 13 yr old sons and honestly, he doesn't need data when he's at school. I only have him on the $30 plan (1500 text and minutes, 30mb data). Works for me. Glad I didn't go with tmo on my s3 tho since those speeds are unbearable. I went with aio wireless, and the speeds suck on that too, but at least its not edge. I get 3-4 mbps, and with att it was only slightly faster at Max 7 mbps.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] drago10029:
guess there LTE is only in select locations for now. hopefully they'll do some refarming, or just add extra towers so you and your son can get some great speeds!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] masterkamon842:
I'm trying to find out if this works with the new Metro PCS Sim cards, the GSM versions, but can't get it to work on a SR i bought today. In fact I can't even make calls, it says "not registered on the network". I flashed TWRP, rooted, and flashed 2 different Tmobile radios and no progress at all. Need some help :/
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Did you unlock the phone??
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] masterkamon842:
Yeah I did. I found out with MetroPCS. They don't support activations for that phone. I'm just switching provider. Thanks though.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Are they locked sims?? Otherwise I would be surprised if you can't activate and swap the sim into it. Also I know the metropcs spectrum bought by T-Mobile is the 1900mhz spectrum so you shouldn't need to change radios at all.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dementedchild686:
i am unable to find the downloads so i can flash these to my phone as i am running on edge
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] immaeetuu:
The download is on the first page...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] theesotericone:
There either dead or require signing up for the site. Either option isn't good. I bet if the user looking for them went over to the Hercules section he could find them pretty quick. :D
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vizionforever:
What method did you use to unlock USB? with stock rom and cu2 radio.. I Am planning on doing the same thing..After unlocking phones I went to their site and ordered the 2 sims after designating my phone type as the s2 which was an option on their site...Think customer service was blowing you off, or your phone was in need of a restart.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] masterkamon842:
Yes that's how I unlocked. The method here on XDA. I'm letting you know now that if your phone is the skyrocket, the LTE version of the S2, it will not work. Unless they added that phone to their IMEI list recently, I can guarantee you just waisted your money. They do not support the i727.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] krixxux:
Rules for radio flashing

what are the rules for compatibility in flashing a radio, cause i want to flash the s4 tmobile radio unto my skyrocket
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] krixxux:
stickies?

what stckies
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
I could be wrong, but I think the radio has to come from a phone with the same processor, like the Blaze, Note 1, Hercules, etc. Can anyone confirm (or deny)?