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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
Hey everyone, TribalArtGod had an idea for some kind of map to show different combinations of Radios and RIL's and the signal reception for those combos and i decided to act with that idea and am now working on making a Google Map with different pinpoints with information relative to what phone is being used and what radio/RIL combo is being used for the area that you live and work in. Currently there is only one entry and it is for the HTC Inspire on the Simple Mobile network. I will be testing all radios for the HTC Inspire and uploading the information to the map for those radios. If you would like to help me with any other phones just comment below with:
1. Radio and RIL version you are currently using
2. Screenshot of your network signal - I have been using Network Signal Info here
3. Screenshot of a speedtest - I have been using Speedtest.net
4. and lastly what phone you are using, i.e. HTC Inspire, Motorola Atrix, Samsung Galaxy Nexus, etc.
Here is the link to the map so you can see how i am putting it together here
Now would you only like us to test EDGE network? or go all out?
Go all out if you can
Sent from my Inspire using XDA Premium App
Radio help please
I have a HTC Inspire 4G which was originally on AT&T. It's unlocked and accepts other SIMS, I have also unlocked it and have S-Off (which I gained through the no longer supported hack kit) running CM 10.1-20130206-unofficial-ace.
The RIL is HTC-RIL 2.2.0014G (September 24, 2010) the Radio shows 12.56.60.25U_26.10.04.03_M
The phone is stuck on Edge service, so from reading, I appears that I need to do an update of the radio? I know where to pick up the radio's on CM's site, but they don't support the radios and wont apparently give advice.
Help.
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
I have a problem with the connectivity of my One X AT&T. I was on CleanROM 6 R2. Tried to install a sense 5 theme. Something went wrong during the installation. Got stuck in the HTC white screen, and it rebooted itself a few time but always to the HTC white screen. I was able to go into recovery and do a restore (after a few times that I couldn't enter the recovery). After the restore I had problems with my signal. I tried to flash a new RIL (HTC ATT 3.18 (Thanks to liamstears!) (0.24p.32.09.06_10.130.32.34): http://d-h.st/Maq). Tried flashing another RIL (ATT 2.20 (0.19as.32.09.11_2_10.105.32.25): https://www.dropbox.com/s/4sbtbmw2ra...105.32.25L.zip RIL (flash separately): https://www.dropbox.com/s/4u7p8jgvk2650hl/2.20RIL.zip). It didn't help. I tried installing a new ROM (CM10.1) every thing was OK, however I keep losing my signal (x in the network). I tried flashing the RUU 1.85 (of course I relocked the bootloader etc.). Now I'm on stock 1.85, I have signal (sometimes even full) however from time to time I lose the signal completely. It usually happens when switching cell towers (downloaded GSM Signal Monitoring from the play store), and I can get stuck with no signal for hours. Tried to check in the Phone info (*#*#4636#*#* in the dialer) and changing the GSM/WCDMA/LTE to WCDMA only or WCDMA preferred, turning off and on the radio etc. Don't know what to do that I haven't already done. Furthermore, I sometimes get stuck in a loop of the HTC white screen, and it boots over and over again to that screen (can do that for quite some time). Even after getting into the bootloader and selecting recovery, it sometimes doesn't enter the recovery. And even selecting shut down from bootloader and the phone is connected to the computer (for charging), it shuts down and after 2 min. it wakes up and get stuck in the HTC white screen loop all over again. Before all that I never had a problem with the signal. I was on hboot 1.09 (I still am), and s-off. I don't remember when version I was however I remember that is had (0.17 something in it can't remember if with 'a' or not). I noticed that RUU 1.73 is (0.16) that's why I didn't want to flash it and went straight to 1.85 however I don't remember I had the at&t boot animation when I got the phone almost a year ago. BTW, I live in Israel and my carrier is using 850 & 2100 MHz UMTS (the 2100 was a roaming one due to the fact it's a MVNO) and before that I was on another carrier that has 900 & 2100 MHz.
Please HELP! Having a phone without signal is like having a brick!
Have you tried using Google maps to find the radio towers in your area and flash accordingly?
Sent from my HTC One X using xda premium
Venomtester said:
Have you tried using Google maps to find the radio towers in your area and flash accordingly?
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
The only radio towers on google mas that I know i this:
https://maps.google.com/maps/ms?ie=UTF&msa=0&msid=217917717250281685326.0004c262acfff78edb974
and it doesn't show anything in Israel.
Furthermore, This is not a tower problem (I think). I had no problem with the original RIL that came with the phone (at&t).
I think the problem technically is not the tower itself. The problem, I think, is that there are no wcdma or lte towers there. AT&T, Verizon and Sprint only built the towers in the U.S. and Canada. While GSM towers are global, the phones were made to be used in these areas. When you flashed 3.18 radio it updated your partition to pick up these latest towers and I think that is why you are dropping or not connecting or it might have corrupted the radio. The only thing I can think of is to try earlier versions and set them to gsm only. I will try seaxhing to see if I can find out what towers are over there.
Sent from my HTC One X using xda premium
---------- Post added at 08:45 AM ---------- Previous post was at 08:18 AM ----------
The gsm for Israel is 900-1800 and 3G frequency is 850/2100.
Sent from my HTC One X using xda premium
Venomtester said:
I think the problem technically is not the tower itself. The problem, I think, is that there are no wcdma or lte towers there. AT&T, Verizon and Sprint only built the towers in the U.S. and Canada. While GSM towers are global, the phones were made to be used in these areas. When you flashed 3.18 radio it updated your partition to pick up these latest towers and I think that is why you are dropping or not connecting or it might have corrupted the radio. The only thing I can think of is to try earlier versions and set them to gsm only. I will try seaxhing to see if I can find out what towers are over there.
Sent from my HTC One X using xda premium
---------- Post added at 08:45 AM ---------- Previous post was at 08:18 AM ----------
The gsm for Israel is 900-1800 and 3G frequency is 850/2100.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
I already mentioned that my carrier is using 850/2100 (3.9G), and before the change to 3.18 I had 3.17 and before that I had CM10 etc. with no problems at all with my network connection. So using GSM is not the right answer for that (as far as I know). What is more troubling is that I am now using the stock RUU for 1.85 so I'm not even close to 3.18 and flashing RUU is also flashing the radio and other stuff, but still no change in the reception, as it comes and goes (like I said in the OP).
etai-ab said:
I already mentioned that my carrier is using 850/2100 (3.9G), and before the change to 3.18 I had 3.17 and before that I had CM10 etc. with no problems at all with my network connection. So using GSM is not the right answer for that (as far as I know). What is more troubling is that I am now using the stock RUU for 1.85 so I'm not even close to 3.18 and flashing RUU is also flashing the radio and other stuff, but still no change in the reception, as it comes and goes (like I said in the OP).
Click to expand...
Click to collapse
If you've already narrowed it down to being a hardware issue, why are you posting here?
CM does not pull from the same radio driver sense uses, So whatever you do in sense will not affect CM, if flashing different CM radios doesn't do it and RUU doesn't seem to do it, You could try RUUing up to 3.18 and see if it makes a difference but I doubt it will.
The problem is either the radio in your phone (hardware) or the towers. If you're sure it's not the towers that leaves one possibility.
http://forum.xda-developers.com/showthread.php?p=37227608
Here is a list of ruus if you wish to return to the 2.20 and see if that may fix your problem.
Sent from my HTC One X using xda premium
If you have another phone, test the sim card. If you get same results it is a service issue. Sim cards does not affect service. But if it does work, try the above steps.
Sent from my Carbon-ize Evita using xda-developers app
Hello everybody,
I am using a Nexus 5 for a full year now and I noticed from the beginning that I never can get 3G signal, but when I am in the nearest city I van get 4G/LTE. Last week I wanted tot know more about it so I inserted my sim into another phone and immediately I had full 3G connection. So I updated to 5.1.0 with the new radio for 5.1.0 and I still couldn't get 3G. When I googled for 3g coverance I noticed I shoud've get full 3G. however only 2G and 4G works but the problem is that there is no 4G coverance in my hometown so I am stuck at the slow 2G. I'm in the netherlands and I already tried all options in *#*#4636*#*# but I still dont get 3G. also my apn settings are correct. so my last hope is to ask here if anyone knows what to do. I'll include a picture of my baseband version etc.
Sent from my Nexus 5 using XDA Free mobile app
If it doesn't work after clean flashing factory images and trying different radio versions, it might be a hardware problem.
It's sad because I don't have any warranty anymore because I've opened the device up to replace the screen myself. Do I need to change the whole motherboard?
Sent from my Nexus 5 using XDA Free mobile app