Database Info

[Q] 3g/4g Switching Bug? Post here

OK, so I'm trying to round up all of those who are experiencing the 3g/4g radio switching bug. In a nutshell, it's this:
In the middle of a data-intensive process, the radio will switch several times from 3g to 4g to 3g to 4g, and over and over again. Often, it will cause disconnects, failed downloads, and interrupted streaming audio, etc.
If you are experiencing this bug, please post in this thread, and be sure to include whether you have the US or EU version of the phone. I want to consolidate all those with the problem into a large thread, so it can get more visibility.

Hi,
I have exactly the same problem with my One S.
When the phone idle, the connection is 3G but when i use the data, it switch to 4G/3G/4G/etc...
As you said, it cause disconnects and and sometimes resolving errors.
My phone :
HTC One S 1.53.401.2 (stock rom)
Kernel : 3.0.8-01050-ge2a40ab
Baseband : 0.15.31501S.19_10.12.31501S.06L
Build : 1.53.401.2.CL47230
Operator : Free (France)

Same problem, with a SH23 EU phone and firmware version 1.53.401.2.
It switches from 3G and H (which is more 3.5G or 3G+ than 4G here), but I didn't experienced connexions problems (but haven't had many opportunities till now)
EDIT: Sorry, didn't see that another thread already exists in General forum.

same issue here, same firmware

SpotZup said:
Same problem, with a SH23 EU phone and firmware version 1.53.401.2.
It switches from 3G and H (which is more 3.5G or 3G+ than 4G here), but I didn't experienced connexions problems (but haven't had many opportunities till now)
Click to expand...
Click to collapse
I'm with the same phone and same behavior exactly.
I've already notified HTC about t a week or more ago.

I believe this is due to EU software. My reasoning is this:
On my T-MOUS One S, everything is fine on stock firmware with root. I NEVER experience this problem, the only switching I ever get is when I'm on a fringe area with NO 3/3.5G. As soon as I flash a rom that is based on EU firmware (all of them basically), I can't run speedtests without data being interrupted and the status bar shows switching from H to 3G repeatedly. No, this is not a scientific test by any means, but once again I have no problems whatsoever on my T-Mobile US stock rom.

T mobile does have the bug
It is because the T Mobile base is programmed to not switch from 4g but I assure you I own the phone and if you do speed test you will see this bug is definitely present..

I've been doing speedtests since I bought the phone.. it never happens on mine

whether you like it or not..
Guess you have the magic device that does not have the bug which everyone else has..even though tmobile acknowledged the issue already as well as the people with the EU version which also has the bug..

joshnichols189 said:
I believe this is due to EU software. My reasoning is this:
On my T-MOUS One S, everything is fine on stock firmware with root. I NEVER experience this problem, the only switching I ever get is when I'm on a fringe area with NO 3/3.5G. As soon as I flash a rom that is based on EU firmware (all of them basically), I can't run speedtests without data being interrupted and the status bar shows switching from H to 3G repeatedly. No, this is not a scientific test by any means, but once again I have no problems whatsoever on my T-Mobile US stock rom.
Click to expand...
Click to collapse
I confirmed on this. Been testing EU build and have problem with data and battery issued
Sent from my HTC VLE_U using XDA

Weird I never see 3g not once it goes from 4g to 2g back to 4g I live in the US
Sent from my HTC VLE_U using xda premium

tongueman87 said:
Weird I never see 3g not once it goes from 4g to 2g back to 4g I live in the US
Sent from my HTC VLE_U using xda premium
Click to expand...
Click to collapse
same here--Ohio

tongueman87 said:
Weird I never see 3g not once it goes from 4g to 2g back to 4g I live in the US
Sent from my HTC VLE_U using xda premium
Click to expand...
Click to collapse
This only happened if you flash custome EU Rom on your phone. I assume you using tmo USA HTC one.
Sent from my HTC One S using XDA

Using stock TMOUS and it switches from 4g to 2g every time I use Pandora, or atleast that is the only time I've noticed it.
Sent from my HTC VLE_U using XDA

Yes tmous stock not rooted or anything. Until I can remove tampered just so I don't worry about exchanges
Sent from my HTC VLE_U using xda premium

T-mobile 4g Radio

OKAY so I decided to update this thread:
There are two versions of the One X. One with aws bands and one without. I have a device without AWS (I am about 80 % sure). There are reports of people getting 4g on AWS with the Rogers Version as of now, and more testers need to check it out as it could still be possible on ATT.
This flash here theoretically could enable the One X radio to lach onto AWS (The radios here are for the One S Ville.)
http://ville.giev.de/?page_id=42
I have flashed all three, and although I did not get 4g, I got faster ping and a near immediate connection onto T-mobile. To all the people saying this will "brick" the phone, it does not and you have nothing to worry. But as always make sure to do a backup. The radio hacks for the Skyrocket/Note were also based on flashing the Galaxy S2 radio directly on top. This should work the same.

I'm interested in this as well. What does is involved and the risk? I don't have warranty on my phone, so I'm a little bit leery in being first.

ver2go said:
I'm interested in this as well. What does is involved and the risk? I don't have warranty on my phone, so I'm a little bit leery in being first.
Click to expand...
Click to collapse
if your rooted ull should be fine just make a back up of ur current set up. this is just a clockwork flash, it may not even flash, but if it does then there's a high chance of 4g.
i've done radio hacks before for the droid 3/skyrocket/note all from a similar concept. ex. flashing the t-mobile galaxy s2 radio on the note, to enable 4g.
if anyone could provide me with a better solution for an unlock i am sure i can get this to work. seems that the htc unlocker server is down right now
it's the same thing as flashing different radios via clockwork posted in the One X android dev forum

I'll give it a try, hopefully it won't mess anything up. So I just flash the radio in recovery. If no good, I just flash the correct radio again?
There is a one click no HTC Dev bootloader unlock in the Dev forum.
http://forum.xda-developers.com/showthread.php?t=1734558
---------- Post added at 07:57 PM ---------- Previous post was at 07:25 PM ----------
I flashed:
Radio from RUU_Ville_U_HTC_Europe_1.78.401.2 [Recommended] (update by rhcp)
0.16.31501S.17_2_10.23.31501S.10L
From your link. It flashed correctly. The phone on data and voice still works. I confirmed the version in Settings is not my original:
0.17.32.09.12_10.86.32.08L
I'm still on Edge, but I'm in a crappy cell area, so still not certain if radio or my area. I might give the:
Radio from Stock T-Mobile US (update by rhcp)
0.16.31501S.02_10.18.31501S.08L
Radio a try too.

good to hear no negative results got my phone unlocked so i will be testing tonight. also do u guys have the newer sims or older ones?

I have an older sim I believe. It is one that came from an activation kit I bought off ebay. I tried the T-Mobile radio and same results, still on Edge, but still could be my location.

What in gods name are you guys doing! ? Are you trying to brick your phones? It's already been confirmed that the hardware on this phone does not support the proper bands for T-Mobile 3g!

seh6183 said:
What in gods name are you guys doing! ? Are you trying to brick your phones? It's already been confirmed that the hardware on this phone does not support the proper bands for T-Mobile 3g!
Click to expand...
Click to collapse
Prove it. Why would the phone soc be any different than the one s one.
Sent from my HTC One X using xda premium

ECEXCURSION said:
Prove it. Why would the phone soc be any different than the one s one.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
It's not just the SOC that determines hardware compatibility. There are various radio amplifiers and filters which are tuned to the specific frequencies that the phone is likely to encounter. If a phone is going to be sold in multiple markets, sometimes the hardware filters are set up for all frequencies and some are disabled via software, but often times this is not the case.
It's not impossible that a radio reflash can make it work, though highly improbable.
sassafras

Interested in this. There might be better luck flashing the tmo radio since I don't think any European operators use AWS bands, correct me if I'm wrong.
Can anyone explain why flashing this radio from a different device won't brick our phones?

tspx23 said:
good to hear no negative results got my phone unlocked so i will be testing tonight. also do u guys have the newer sims or older ones?
Click to expand...
Click to collapse
I have a tmobile one s, but i also have the one from att and i am so interested on using this phone over tmobile 4g let me know if i can of help. I am using my micro sim that came with the one s and i am getting edge (asume its the latest from tmobbile 4g mucro sim. I am on 1.85 rooted but i did not unlock. though i am sure we can flash through CWM. any ways i am sure there is a way out to get 3g or 4g on the one x on tmobile did not find the way yet.

flashed both of the t-mobile modems no luck for me either, although my ping is significantly higher and connects to t-mobile a LOT quicker.
does anyone know how to edit the LTE settings. it is odd but for most ATT LTE phones they have the 1700mhz frequency i think it would be a matter of just defaulting that....
the radios also show up in my baseband so i have successful flashes
EDIT: one more thing, before i was not able to use data at all considering i had the newer t-mobile sims but now data works but on edge speed.

danada said:
Interested in this. There might be better luck flashing the tmo radio since I don't think any European operators use AWS bands, correct me if I'm wrong.
Can anyone explain why flashing this radio from a different device won't brick our phones?
Click to expand...
Click to collapse
it's just a file in your system. it could potentially brick your phone but you can always get into recovery and restore. which is why i stated you should create a back up of your device before trying it out.
however, i was fairly certain it wouldn't do that because the internals of the One S/One X are nearly identical, they both share the same processor and most likely similar (if not same, radios).
either way, the the radios work, getting me higher ping, and working data without having to switch out my sim for an older one, hope there is a way to activate the 1700 band !
http://www.gsmarena.com/htc_one_x_at&t-4614.php
EDIT 2: apparently there are two models of the ATT One X/XL one with the 1700 band and one without

tspx23 said:
flashed both of the t-mobile modems no luck for me either, although my ping is significantly higher and connects to t-mobile a LOT quicker.
does anyone know how to edit the LTE settings. it is odd but for most ATT LTE phones they have the 1700mhz frequency i think it would be a matter of just defaulting that....
the radios also show up in my baseband so i have successful flashes
EDIT: one more thing, before i was not able to use data at all considering i had the newer t-mobile sims but now data works but on edge speed.
Click to expand...
Click to collapse
Likely the software has been changed to support T-Mobile, but the hardware (filters, amplifiers, etc) are non-existent, so you'll never get actual 1700 MHz AWS support.
Of course, this is just a 50,000 foot view perspective without actually trying it myself.
sassafras

sassafras_ said:
Likely the software has been changed to support T-Mobile, but the hardware (filters, amplifiers, etc) are non-existent, so you'll never get actual 1700 MHz AWS support.
Of course, this is just a 50,000 foot view perspective without actually trying it myself.
sassafras
Click to expand...
Click to collapse
you might be right about this one but there are certain One X/XL's that do have the 1700 band found out through some searching and trying to figure out the reason behind it.
If that's correct.... the people with the 1700 band would have 4g when they flash this radio! also use *#*#4636#*#* to change network type to lte/gsm
--- for other phones though like the Skyrocket/Note they were directly compatible with T-mobile radios.

Okay, I flashed the Tmo One S radio and did not receive a brick. What I did receive is a not-so-good connection that will switch between HSPA+ and 3G quite often.
I don't have a WIND sim to test with, but I tried running AT commands on my phone and they don't seem to be working. I tried doing a network scan with AT+COPS=? waited forever and had nothing displayed.
Strange...
--edit--
Rebooted and ran the commands again. Still don't see any AWS carriers.
uid=0 [email protected]:/ # +COPS: (1,"CAN Rogers Wireless Inc.","ROGERS","302720",7
),(2,"ROGERS","","302720",2),(1,"CAN Rogers Wireless Inc.","ROGERS","302720",0),
(1,"","","302220",2),(1,"","","302610",2),(1,"","","302610",7),(1,"","","302220"
,7),,(0,1,2,3,4),(0,1,2)
Click to expand...
Click to collapse

danada said:
Okay, I flashed the Tmo One S radio and did not receive a brick. What I did receive is a not-so-good connection that will switch between HSPA+ and 3G quite often.
I don't have a WIND sim to test with, but I tried running AT commands on my phone and they don't seem to be working. I tried doing a network scan with AT+COPS=? waited forever and had nothing displayed.
Strange...
--edit--
Rebooted and ran the commands again. Still don't see any AWS carriers.
Click to expand...
Click to collapse
Don't you need a wind sim to connect im pretty sure the Canadian version will work on aws

Confirmed on my end that even with the T-Mobile radio, I'm not getting HSPA+. Even when I drove by the Moscone center where 1900Mhz was refarmed during Apple's WWDC (maybe it was just that day?). I was hoping this would be like the Note and Rocket where I can flash different radios.
Any other new phone capable of this? The S III? If not, I may have to either wait for 1900MHz refarm or switch to Straight Talk.

ver2go said:
Confirmed on my end that even with the T-Mobile radio, I'm not getting HSPA+. Even when I drove by the Moscone center where 1900Mhz was refarmed during Apple's WWDC (maybe it was just that day?). I was hoping this would be like the Note and Rocket where I can flash different radios.
Any other new phone capable of this? The S III? If not, I may have to either wait for 1900MHz refarm or switch to Straight Talk.
Click to expand...
Click to collapse
Picking up an att s3 today to test it out. Most likely there's two versions of one x one with aws and one without. I know mine doesn't though.

tspx23 said:
Don't you need a wind sim to connect im pretty sure the Canadian version will work on aws
Click to expand...
Click to collapse
I'm not exactly sure of this one.
If someone is willing to let me cut up their WIND sim (or lend me their WIND microsim), I'll re-flash the tmo radio and meet you somewhere to test it (Toronto, please).
~dan
-----edit-----
Just popped in an old WIND sim that I used to test AWS connectivity at first. Saw WIND Away with the standard radio, and after flashing the Tmo radio I see WIND Away and AT&T (AT+COPS=? shows Rogers, ATT, Telus, Bell).
I live by the lake, that would explain why ATT shows up.
-----edit again-----
Check this out http://imgur.com/Nb984,rUvM6. Not using the One S radio...

[Q] Cannot Connect to Rogers Operator, Connecting to Telus Instead?

Hello everyone. This is my first post on XDA. I've been an avid follower for a couple of months now, but I've reached a problem in my hacking spree which cannot be resolved by a simple search.
First thing's first... I'm running AOKP 6, and using the HTC TELUS 1.91 (0.18a.32.09.01_2_10.94.32.20L) radio. I know this sounds silly, but is it OK for me to be connecting to the Telus Operator, rather than Rogers? I have the correct Rogers APN entered, and can use data just fine.
When I enter the Network Operators Menu in the settings, I get a list of three different operators: Rogers, Telus, and Bell. When I tap Rogers, it will authenticate for around 2 minutes and then say it's not available. The same case goes for the other two. But when I enter a dead zone (typically in the university) it says something along the lines of "Cannot connect to network (Telus)"
I suppose another question I have is, is the current radio that I'm using sufficient or is there one which is more beneficial? If it helps anyone, I'm living in the west coast of British Columbia, Canada.
Thank you very much for reading my poorly explained thread. I hope somebody can help me fix this issue I'm having.

I have no idea why you suddenly have no connection to Rogers. It may be an issue with the Telus modem. Have you tried flashing a different one to test? I am on Rogers in Vancity also and i just flashed the 1.88 modem from Asia. It seems to be working fine for me. Perhaps give that one a try.

Before this radio I was using the Rogers one provided in that thread. I was also connected to Telus towers with that one. I will give the Asia radio a try.

Here is a silly question. Is it a Rogers HOX or an AT&T version?
Beamed from my KingCobra1X powered HOXL

Heh, well. I bought it brand new at Rogers Plus. I'd like to assume it's a Rogers phone.

commarag said:
Heh, well. I bought it brand new at Rogers Plus. I'd like to assume it's a Rogers phone.
Click to expand...
Click to collapse
Lol just checking. I just flashed back to the Rogers radio, the 1.88 radio is crap. My LTE speeds and signal strength took a dump.
Oddly though, this version of the 1.73 Rogers radio fixed my wireless issues.
---------- Post added at 05:29 PM ---------- Previous post was at 05:25 PM ----------
As for your issue, have you verified that the Rogers LTE apn didnt get screwed up by AOKP?

Really, I'm not sure. I'm using the official Rogers APN with all the right settings. When I get home I'll attempt to flash another radio and report back. By the way, I really appreciate your help. Thank you!
Sent from my One X using xda app-developers app

commarag said:
Really, I'm not sure. I'm using the official Rogers APN with all the right settings. When I get home I'll attempt to flash another radio and report back. By the way, I really appreciate your help. Thank you!
Sent from my One X using xda app-developers app
Click to expand...
Click to collapse
No worries bro. I haven't exactly been much help though, since I am only tossing guesses your way, lol.

Unfortunately, I'm having the same issues and connecting to Telus rather than Rogers. Very strange indeed...

commarag said:
Unfortunately, I'm having the same issues and connecting to Telus rather than Rogers. Very strange indeed...
Click to expand...
Click to collapse
I don't get it. Does it automatically connect to Telus, or just NOT connect to Rogers? Have you tried another ROM?
I would do a nandroid backup of your current setup and maybe try a different rom. Won't hurt, you can always restore.
Beamed from my KingCobra1X powered HOXL

I honestly wish I were better at explaining this. If I try to manually register to the Rogers operator, or any operator for instance, it will say it's unavailable. Although I do notice that it says it's connected to Telus when I lose connection in a dead zone. It shows "(Telus)" beside a lost signal message.

I would try replacing your sim card. The LTE sim cards can be flakey. Its an easy way to eliminate that possibility. Hell, it may fix it. Other than that you could try playing stupid and calling Rogers. Just don't mention the fact that you have flashed another rom or unlocked your boot loader....
Beamed from my KingCobra1X powered HOXL

Try flashing the king cobra rom I believe it is based for rogers and comes with the HTC Asia radio 1.88. Give that a shot. Not really too sure just trying to help.

Yea. King Cobra is working great for me. I was looking through the AOKP thread and there are a few people reporting data issues. I would swap roms as I suggested a few posts back.
Beamed from my KingCobra1X powered HOXL

I'm not sure exactly what I did, but I fixed it! I flashed the stock Rogers radio back in my phone, and I'm using a different RIL now. But I'm getting amazing download speeds and connecting to the Rogers Operator. My mind is blown.
I really appreciate your efforts to help me. Thanks.

Awesome! At this point it doesn't matter WHAT fixed it, only that its fixed!
I just flashed the 1.89 Telstra radio with ril and my LTE speeds went up.
Beamed from my KingCobra1X powered HOXL

T-mobile HTC sensation signal problems

I need help, I'm already desperate...
Got a T-mobile HTC sensation, it was already unlocked for other carriers but no S-off or unlocked bootloader.
I got an S-off, unlocked the bootloader, changed CID, flashed Android Revolution HD 6.7.2, but I have HORRIBLE signal reception. So I found that update file in the header which said "- HTC Sensation 4G (U.S. T-Mobile PG5810000 | T-MOB010) users can flash this for better signal and data speeds!" I installed it... NO IMPROVEMENT, my last hope is flash a different radio. Anybody knows what's the problem and how to fix it?
configs right now
different carrier sim (not t-mobile)
S-off, unlocked loader
HBOOT: 1.27.11111
Radio: Radio_11.76A.3504.00P_11.24A.3504.31_M
cid changed to 1111111
firmware: 3.33
ROM right now: is the XE version with beats (tried 1.2.2 too, no change)
Kernel: faux
EDIT: just found out that my wifi is not working either, tried the boot.img fix, didn't help. I get Wifi for a brief second and if I managed to connect it will stay for a while, but if I don't no wifi after that.

Kernels vs Radios
kkira13 said:
Kernel: faux
EDIT: just found out that my wifi is not working either, tried the boot.img fix, didn't help. I get Wifi for a brief second and if I managed to connect it will stay for a while, but if I don't no wifi after that.
Click to expand...
Click to collapse
Have you tried a different kernel? http://forum.xda-developers.com/showthread.php?t=1269247 (maybe its for AOSP only though)
Sensation Kernel Update (different and more recent than above): http://forum.xda-developers.com/showthread.php?t=1256668
Different (userfriendly) radios? http://forum.xda-developers.com/showthread.php?t=1459767
Remember to make a backup before install.

yes I have tried 2-3 kernels, including Bricked.
and I have changed 7-8 different radios/firmwares
P.S. fixed wifi with WiFix, at least this 2 issues are not connected

Greetings. I'm taking a stab at asking my question here because it seems sort of related.
I'm a T-mobile USA customer with a brand new SIM card in my Sensation 4g that I bought a few months ago.
My bootloader is unlocked, I'm S-off, I've flashed the custom firmware (version: 3.32.401.3) that was recommended for those flashing the Cyanogenmod 9 ROM. I'm currently using the most recent STABLE Cyanogenmod 9 ROM (not 9.1, but the STABLE 9 ROM). I'm using the stock Cyanogenmod 9 kernel (the one that came with the ROM: 3.0.26-g7290c7f). I never bothered to flash a new radio, not sure if that's a mistake or not.
My reception is good but it seems rather obvious that my phone is completely unable to hook up to or unaware of the 4g network. When downloading, the icon in the taskbar always shows either "3g" or "H" and when I check the "Status" in "About Phone" my "Mobile Network Type" is always listed as UMTS:3 or HSDPA:9.
Can anyone make any suggestions for how I might begin the trouble shooting process to remedy this issue. Thank you in advance for any sage like advice you might provide, I'm pretty lost here.

iamabot said:
Greetings. I'm taking a stab at asking my question here because it seems sort of related.
I'm a T-mobile USA customer with a brand new SIM card in my Sensation 4g that I bought a few months ago.
My bootloader is unlocked, I'm S-off, I've flashed the custom firmware (version: 3.32.401.3) that was recommended for those flashing the Cyanogenmod 9 ROM. I'm currently using the most recent STABLE Cyanogenmod 9 ROM (not 9.1, but the STABLE 9 ROM). I'm using the stock Cyanogenmod 9 kernel (the one that came with the ROM: 3.0.26-g7290c7f). I never bothered to flash a new radio, not sure if that's a mistake or not.
My reception is good but it seems rather obvious that my phone is completely unable to hook up to or unaware of the 4g network. When downloading, the icon in the taskbar always shows either "3g" or "H" and when I check the "Status" in "About Phone" my "Mobile Network Type" is always listed as UMTS:3 or HSDPA:9.
Can anyone make any suggestions for how I might begin the trouble shooting process to remedy this issue. Thank you in advance for any sage like advice you might provide, I'm pretty lost here.
Click to expand...
Click to collapse
H is good. It means you are on an HSDPA network. That's 4G for the purposes of this conversation (though what really constitutes 4G is a little more involved)
HSDPA:9 might just be the best speeds that are available in your area. For instance 8 is the best I can get at my house. No amount of better phones will fix that. It's just what's available from the tower.

Skipjacks said:
H is good. It means you are on an HSDPA network. That's 4G for the purposes of this conversation (though what really constitutes 4G is a little more involved)
HSDPA:9 might just be the best speeds that are available in your area. For instance 8 is the best I can get atso my house. No amount of better phones will fix that. It's just what's available from the tower.
Click to expand...
Click to collapse
That's helpful thank you. One last question in the interest of clarification. Should I find myself in an HSPA+ reception area, should I expect the information over the reception bars to change from 3g to 4g and would "Mobile Network Type" then reflect HSPA+ as opposed to HSDPA 9?
Just curious so I might know what to look for when crossing into better network areas.
Thanks again for the tip.

The H means 4g technically. You can update your radio and ril very easily. Will find links and edit post
http://forum.xda-developers.com/showthread.php?t=1202867
Sent from my HTC Sensation 4G using xda app-developers app

lackdog said:
The H means 4g technically. You can update your radio and ril very easily. Will find links and edit post
http://forum.xda-developers.com/showthread.php?t=1202867
Sent from my HTC Sensation 4G using xda app-developers app
Click to expand...
Click to collapse
Thanks for the link. I guess what I was wondering is whether or not I actually need to update my radio, I'd feel a lot more confident in my reception if I ever saw HSPA+ listed in my phone's "Mobile Network Type", but I never do. I had previously thought that HSDPA was 3G, but maybe I'm missing something.
Thanks for the link, flashing a new radio is something I had been giving consideration, I'm just wondering how user friendly the process is. Like picking a needle out of a haystack, or is there someway to narrow down what radio/ril combo is best for one's phone/network.
I'll read through the thread for the link you posted and update my progress here later. Thanks for the info.

iamabot said:
That's helpful thank you. One last question in the interest of clarification. Should I find myself in an HSPA+ reception area, should I expect the information over the reception bars to change from 3g to 4g and would "Mobile Network Type" then reflect HSPA+ as opposed to HSDPA 9?
Just curious so I might know what to look for when crossing into better network areas.
Thanks again for the tip.
Click to expand...
Click to collapse
your data connection will still say 3G, unless you start to use the data then it will automatically switch to 4G/H (saves battery this way)
HTC made a fault with the Sensation with building the antennas into the back case (hand over the back of the phone = small loss of reception)

Theres a program called getRIL in the play store. You can update your radio and ril as long as your root. Which i assume u are. I do it thep old fasion way though.
Sent from my HTC Sensation 4G using xda app-developers app

[Q] Flashing T-Mobile radio onto at&t skyrocket

I have a rooted and unlocked at&t skyrocket on jellybean 4.1.2 with very slow speeds, so I tried flashing the radios UCMC1 and UXUMA7 through cwm and nothing has changed. After messing with the APN settings a little my data is no longer working. It shows the bars but I can't get a connection.
I flashed the radio UVLI1 in hopes that I would get lucky but that caused my bars to go away to be replaced by a slashed circle. I flashed back to UCMC1 which is showing the bars, but still no data connection. I have broken my back googling and searching forums on this matter but I can't seem to figure this out. Any help please?

http://forum.xda-developers.com/showthread.php?t=2349914
Don't double post

I think UCMC1 and UXUMA7 are ATT and Rogers radios respectively. UVLI1 is the T-Mobile SGS2 ICS radio, which may not work on your JellyBean rom.
Try UVMC6, which is the radio for T-Mobile's SGS2 Jelly Bean update. You can find it here:
http://forum.xda-developers.com/showthread.php?t=1895400
Results can never be guaranteed, but this is the radio I use, and it has worked fine on every single rom I've tried, Touchwiz or AOSP, even in areas w/o the 1900Mhz refarm.

Can I flash the radio change w/out having my phone rooted?

Rissa82 said:
Can I flash the radio change w/out having my phone rooted?
Click to expand...
Click to collapse
Your phone must have a custom recovery to flash radio files...

It has twrp... that counts right? It doesn't need to be rooted, does it? I'm a computer nerd... phones aren't my thing. Give a girl a break, lol.

Rissa82 said:
It has twrp... that counts right? It doesn't need to be rooted, does it? I'm a computer nerd... phones aren't my thing. Give a girl a break, lol.
Click to expand...
Click to collapse
Yes ... TWRP or CWM are fine...
Rooting is something different, but for radio flash you have enough...

mahanddeem said:
Yes ... TWRP or CWM are fine...
Rooting is something different, but for radio flash you have enough...
Click to expand...
Click to collapse
Would you mind telling me how I flash it or point me to a thread that will walk me through it quickly? Please & thank you!
---------- Post added at 10:25 PM ---------- Previous post was at 10:15 PM ----------
Nevermind! I think I figured it out!

If I have a AT&T skyrocket and have a T-Mobile sim, should I use this radio? Or just stick with the UX, I am currently running?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

DSDONE said:
If I have a AT&T skyrocket and have a T-Mobile sim, should I use this radio? Or just stick with the UX, I am currently running?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
It depends on what you observe using either of these..
Try them one by another and see which one is better (UCMC1 vs UX radio) in signal and data speeds ... Personally I couldn't find any difference in my location ... Both gave me the exact same signal and data speeds (TM LTE).

mahanddeem said:
It depends on what you observe using either of these..
Try them one by another and see which one is better (UCMC1 vs UX radio) in signal and data speeds ... Personally I couldn't find any difference in my location ... Both gave me the exact same signal and data speeds (TM LTE).
Click to expand...
Click to collapse
The UX gave me faster data speeds. Call clarity is about the same. I see 4G more than with the UC radio... I was wondering about the T-Mobile radio
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

T-Mobile radios would give you the ability to connect to T-Mobile 3G using AWS bands 1700/2100 Mhz Band4...And no LTE (or 4G) of course since the Hercules and Blaze (or the note one from TM) devices have no LTE radio chip...
If you live in an area in which T-Mobile deployed their new LTE(and most likely they already refarmed the PCS 1900 band), use UCMC1 or the UXMA7 radio,whichever you find better...Setting the apn to fast.t-mobile.com is essential for sure to get the service...
If you live in an area that T-Mobile is still at their 3G service (AWS bands for HSPA+) use the newest blaze JB radio...
Edit : when you say faster data speeds UX vs UC , any speed vs speed measurement you can share ? probably I didn't give each radio enough testing and jumped to conclude that they have same data speeds !

:good:
mahanddeem said:
It depends on what you observe using either of these..
Try them one by another and see which one is better (UCMC1 vs UX radio) in signal and data speeds ... Personally I couldn't find any difference in my location ... Both gave me the exact same signal and data speeds (TM LTE).
Click to expand...
Click to collapse