Develop Bugs

Google Play US GSM Model - Low Signal?

Received my GSM Nexus from the Google Play store last week and have noticed thus far that it seems I am receiving fairly low signal at home and at work. I compared the signal to my wife's iPhone 3GS and it was around 5 to 6 dBm less on my Nexus. My signal at home has never been that great and I just started a new job in a different part of town so I can't really compare definitively but it just strikes me as odd. I haven't taken the phone out much because I'm waiting for my case.

Try flashing a new radio.

only 5 or 6 dBm lower? I would write home about it. The Galaxy Nexus has never had the strongest radios, but as long as your speeds are fine and you're not dropping calls I wouldn't worry about it.

5-6dBm isn't a large difference. But play around with keeping your hand away from the bottom left corner of the phone, that's the antenna. Its pretty sensitive to the hand.

Similar problem for me.
I was constantly going out of service every 3 or so minutes and one morning it just wouldn't work at all. Google support had me reset to factory, sent me down to T-Mobile to get a replacement SIM and then transferred me to Samsung Support. Sammy Scriptreader wanted me to buy a new one and I would be credited back when they looked at my returned one which is really unreasonable. However, they did ask me if I had done a factory reset after I got the new SIM and what do you know but it started behaving.
Now I'm not sure what the problem was but it seems to have been resolved. Here's the list of things I did along the way. The selection of network operator came from me remembering the reset network option on my iPhone (see, it is good for something).
Factory Reset
Got a new SIM
Factory Reset
Manually selected T-Mobile as Network Operator
Factory Reset
The new SIM is one of the new 4G MicroSIMs TMO is now using.

Well as soon as I stepped outside of the building at work and all the way home I had a consistent three to four bar signal indicator. I reckon that this is an issue with the European radio not preferring the 850MHz carrier and therefore selecting a higher frequency that attenuates more easily indoors. I actually fired my Microcell back up at home to deal with the coverage issue at home for the time being. Will have to get around to messing with flashing other radios one of these days.

Just to follow up I brought my Atrix 4G with me to work today to compare signal reception with my Galaxy Nexus. In using the same AT&T SIM and taking a measurement every minute I found the following:
Over a five minute period the Galaxy Nexus averaged -102.6 dBm and 50% (2 of 4) bars.
Over a five minute period the Atrix 4G averaged -98.4 dBm and 60% (3 of 5) bars.
So the Galaxy Nexus, using the stock baseband, definitely receives a lower signal. From my years working at a cable company I know that a 3 dB drop in signal is a 50% reduction in power, though I don't know what the ideal signal range is for GSM so I don't know how big of a deal it is at this point.

Same experience on AT&T in south FL. I also have an unlocked Note and the signal is much better, although I'm sure the antenna is much larger too.

I am getting -95dbm, Google Play Nexus on Att between Western and Upstate NY. The tower is right down the street from me though. Samsung isn't know for their "excellent" radios, but this device has been great for me so far. No dropped or missed calls, great reception, fast data speeds and gps lock.

dru858 said:
Just to follow up I brought my Atrix 4G with me to work today to compare signal reception with my Galaxy Nexus. In using the same AT&T SIM and taking a measurement every minute I found the following:
Over a five minute period the Galaxy Nexus averaged -102.6 dBm and 50% (2 of 4) bars.
Over a five minute period the Atrix 4G averaged -98.4 dBm and 60% (3 of 5) bars.
So the Galaxy Nexus, using the stock baseband, definitely receives a lower signal. From my years working at a cable company I know that a 3 dB drop in signal is a 50% reduction in power, though I don't know what the ideal signal range is for GSM so I don't know how big of a deal it is at this point.
Click to expand...
Click to collapse
It could be that the carrier controlled Atrix signal is a little inflated. I'd say if you're getting good speeds it's probably nothing to worry about.
My Gnex has been an absolute dream on T-Mo.

mrsbelpit said:
It could be that the carrier controlled Atrix signal is a little inflated. I'd say if you're getting good speeds it's probably nothing to worry about.
My Gnex has been an absolute dream on T-Mo.
Click to expand...
Click to collapse
I was already assuming that the bars could easily be inflated but I doubt the actual signal level could be. Obviously the Atrix's radio is tailored around AT&T's bands so it came as no surprise that it fared better.

I'm getting -75dbm in downtown Minneapolis, phone has been awesome
Sent from my GT-I9300 using xda premium

Right, look, I'm not trying to compare random signal strengths across the nation. I'm just saying that it seems that compared to another device the Galaxy Nexus receives a signal that is 3 dB to 6 dB lower at times. That's a 50% to 75% decrease in power, which, in fringe areas like my home and new workplace, causes issues. My Galaxy Nexus gets decent signal elsewhere; -70s while stopped in traffic on the freeway, -80s while shopping at Target, -60s at home with the MicroCell cranking.

RogerPodacter said:
5-6dBm isn't a large difference. But play around with keeping your hand away from the bottom left corner of the phone, that's the antenna. Its pretty sensitive to the hand.
Click to expand...
Click to collapse
So I need to hold the phone the way L does?
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dru858 said:
Just to follow up I brought my Atrix 4G with me to work today to compare signal reception with my Galaxy Nexus. In using the same AT&T SIM and taking a measurement every minute I found the following:
Over a five minute period the Galaxy Nexus averaged -102.6 dBm and 50% (2 of 4) bars.
Over a five minute period the Atrix 4G averaged -98.4 dBm and 60% (3 of 5) bars.
So the Galaxy Nexus, using the stock baseband, definitely receives a lower signal. From my years working at a cable company I know that a 3 dB drop in signal is a 50% reduction in power, though I don't know what the ideal signal range is for GSM so I don't know how big of a deal it is at this point.
Click to expand...
Click to collapse
One thing that I will add to here is Motorola has been known for very strong radios (however they do it). You are comparing top notch radios to middle of the road.
Sent from my Galaxy Nexus using Tapatalk 2

dru858 said:
Received my GSM Nexus from the Google Play store last week and have noticed thus far that it seems I am receiving fairly low signal at home and at work. I compared the signal to my wife's iPhone 3GS and it was around 5 to 6 dBm less on my Nexus. My signal at home has never been that great and I just started a new job in a different part of town so I can't really compare definitively but it just strikes me as odd. I haven't taken the phone out much because I'm waiting for my case.
Click to expand...
Click to collapse
What baseband is currently on your phone?

dru858 said:
Right, look, I'm not trying to compare random signal strengths across the nation.
Click to expand...
Click to collapse
^This, although you kind of did set yourself up for a bunch of stupid responses ... we need to compare signal from the same carrier in the same location - looking at info from two different carriers in different locations is pointless.
Generally speaking, compared to previous generations, the Galaxy Nexus is improved. For example, my GN always keeps 3G signal in areas where my Nexus One regularly drops to EDGE. Seems like others have reported the same for the Nexus S: http://www.howardforums.com/showthr...n-the-Nexus-Galaxy-is-better-than-the-Nexus-S
However, I would not be surprised if the GN has worse reception than the 3GS. Reports I've read seem to indicate that the 3GS is very good. Compare it with the iPhone 4 (also very good... until you touch it ): http://www.anandtech.com/show/3794/the-iphone-4-review/2
I would really like to see comparisons between the GN and other phones of the same generation (GS2, Sensation, for example)

reuthermonkey said:
what baseband is currently on your phone?
Click to expand...
Click to collapse
i9250xxla2

I know we are dealing with DBM here, but on a side note AOSP roms display data signal on the bars.
Sent from my Galaxy Nexus using xda premium

Hey Wilsonium what adapter are you using for micro sim. I have been thinking of upgrading to one S but want to be able to go back to my GNex on the fly.

[Q] signal issues on jelly bean

ive been using jelly bean and just recently my 3g signal just disappears randomly on verizon.
does anyone have a link to a good cdma(verizon) radio for jelly bean?

All of the JB ROMs are just using 4.0.4 radios. Sounds like you have some other problems.

prkchop said:
ive been using jelly bean and just recently my 3g signal just disappears randomly on verizon.
does anyone have a link to a good cdma(verizon) radio for jelly bean?
Click to expand...
Click to collapse
I'm sprint and it does same thing for me. Yesterday in a three hour time frame I was disconnected from network 36% of the time. i think was even higher today. I keep checking the stats and no improvement really.
*Android is upgrading...*

just recently like last night and all day today ive been losing my signal all the time, especially when in my house. Its not unheard of but its doing it too frequently

prkchop said:
just recently like last night and all day today ive been losing my signal all the time, especially when in my house. Its not unheard of but its doing it too frequently
Click to expand...
Click to collapse
I don't think I've had over two bars since flashed over and I get excited about those. I think I read in another thread (but could be wrong have been googling) and I think it's because we are a port and still have some ics features..? Don't quote me on that tho.
*Android is upgrading...*

Any help with this would be highly appreciated. Just bought a gnex from someone and I only really get a signal at home. I have pretty much no service anywhere that I used to have service with my Amaze with no problems before. I was hoping changing to jb might help but nothing.

jacktrck said:
Any help with this would be highly appreciated. Just bought a gnex from someone and I only really get a signal at home. I have pretty much no service anywhere that I used to have service with my Amaze with no problems before. I was hoping changing to jb might help but nothing.
Click to expand...
Click to collapse
Did you try to prl before you flashed over and was everything updated first?
*Android is upgrading...*

No, something happened to me too when I tried JB (VZW GNex)
I'm in the same boat (VZW GNex).
My stock 4.0.2 reception was "OK", not great. Same with stock 4.0.4 OTA update. Same after rooting. Same after CM9.
Then I tried jdkoreclipse 2.1 JB, and added the "Wi-Fi fix". Everything fine for a couple of days, then reception SUCKED -- empty triangle instead of bars. Toggling between "CDMA + LTE", "LTE only", and "CDMA only" made no difference.
I Reverted back to my prior CM9 image -- still bad, but I could get a signal outdoors sometimes, in a stronger area (sometimes it would help to turn Wi-Fi off). I re-flashed the proper radios -- no material difference.
I can't get any VZW signal at all inside my house or in the yard, inside my office or outdoors in front of it, inside or outside a Target store (all in an urban area -- some other outdoor areas I could get a stronger signal).
Last night I tried Razor's JB 2.6 -- same problem. Everything's working great on JB, (with the exception that my phone is not actually usable as a phone in many areas of the city). People complain that they have to leave messages that I have to retrieve from Google Voice over Wi-Fi, then I return the call on a land line. I tried "re-seating" my SIM card too.
It definitely appears to me as if something happened a couple of days after I first tried JB, that tanked my VZW reception, even after I reverted back to a prior saved ICS image, and re-flashing the 4.0.4 radios in ICS did not help. Every so often, I'll get a good signal outdoors, but I can't count on it.

I had better reception on ics also. I wonder if there will be a radio update when they finally do the full release
*Android is upgrading...*

One other thing that may be diagnostic
I don't know if this might make a difference, but somewhere along the way, Titanium Backup Pro reported that it detected a change in my Android device ID, and offered to revert it. At first I didn't revert it, but as I had more problems, I went ahead and reverted it as recommended. That was some time ago, and it did not happen again. Since the first JB versions originally came off of a Google I/O nandroid, is it possible that the one I loaded retained the Android device number from the source device, and maybe that played a role? Like I said, I reverted the ID AND later reverted to a prior saved ROM.
@ Jedininjafication, I noticed that you asked jacktrck if he "tried to prl before . . . ." I did a lot of things before I flashed, but I have to admit that I don't know what "prl" stands for. Maybe I did it, but I don't know. I can't think of anything that "prl" would stand for.
---------- Post added at 03:11 PM ---------- Previous post was at 03:05 PM ----------
JediNinjafication said:
I had better reception on ics also.
Click to expand...
Click to collapse
Just so we're clear, this goes way beyond merely being "inferior" to ICS. We're talking NO SERVICE in a significant part of my city, whereas I used to have service to varying degrees of strength before.

diggduke said:
@ Jedininjafication, I noticed that you asked jacktrck if he "tried to prl before . . . ." I did a lot of things before I flashed, but I have to admit that I don't know what "prl" stands for. Maybe I did it, but I don't know. I can't think of anything that "prl" would stand for.
Click to expand...
Click to collapse
PRL is Preferred Roaming List. It's essentially a list of towers that your phone can use. Keeping it updated avoids your phone looking for towers that don't exist (in the case of a tower being removed) and allows it to "see" any new towers that have been constructed.
On Verizon (and Sprint?), the PRL is automatically updated via the SIM for 4G devices and manually via *228 on 3G devices. On AT&T (unless something has changed in the last few years), it's updated via a star coded call only, though I don't know if AT&T also uses *228 or not.

Cilraaz said:
PRL is Preferred Roaming List. It's essentially a list of towers that your phone can use. Keeping it updated avoids your phone looking for towers that don't exist (in the case of a tower being removed) and allows it to "see" any new towers that have been constructed.
On Verizon (and Sprint?), the PRL is automatically updated via the SIM for 4G devices and manually via *228 on 3G devices. On AT&T (unless something has changed in the last few years), it's updated via a star coded call only, though I don't know if AT&T also uses *228 or not.
Click to expand...
Click to collapse
Sometimes*228 won't connect and you have to do *22804 or *22805 on sprint. There is also a dialer code but you need your msl
*Android is upgrading...*

JediNinjafication said:
Sometimes*228 won't connect and you have to do *22804 or *22805 on sprint. There is also a dialer code but you need your msl
*Android is upgrading...*
Click to expand...
Click to collapse
Ah, that's slightly different than VZW. For us, we can do *228 and select option 2, or we can dial *22899 (I think that's the one) directly. In the case of the Nexus, it's a moot point (on VZW, at least), since we're updated manually via SIM. Most times attempting to dial *228 will result in the phone refusing to dial.

Cilraaz said:
Ah, that's slightly different than VZW. For us, we can do *228 and select option 2, or we can dial *22899 (I think that's the one) directly. In the case of the Nexus, it's a moot point (on VZW, at least), since we're updated manually via SIM. Most times attempting to dial *228 will result in the phone refusing to dial.
Click to expand...
Click to collapse
He could try having them push an update. Sprint has had me do the *#*#4636.... Code and change my network to cdma(prl) then go do the *228.. And that's worked. I had garbage service other day until I did a ping in same dialer code. I don't know if menu is the same on Verizon tho
OH! don't do the SCRTN if your do call them! I did that and since am not stock it completely set my meid and stuff to all zeros and they couldn't figure out how to fix so i had to restore
*Android is upgrading...*

I was having terrible data drops and couldn't find a solution. Turned out to be a faulty radio. Got a replacement and haven't had any issues since. So it does happen I guess.
Sent from my Galaxy Nexus using xda app-developers app

Android ID
So, what do you guys think of the Android ID thing? Non-issue? And what would have caused it to change in the first place?

diggduke said:
So, what do you guys think of the Android ID thing? Non-issue? And what would have caused it to change in the first place?
Click to expand...
Click to collapse
after i did the scrtn thing and everything set to 0000000000 and restored back to a previous version and did the update I haven't really had issues. I do at my house in my room but have been good other than that. I don't even know if Verizon has that menu, but it's the factory data reset code for us. Doesn't reset the other stuff.
*Android is upgrading...*

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i have no idea what happened but this is on 3g. Not wifi. no lte here..I'm second round. Awesome
Android is upgrading...

I was having great 4G signal running any ICS rom, however my signal would drop 4-5 times per hour. I called verizon to see what they could do, as I had read that some people had better luck with a replacement phone or sim card. Verizon first sent me a replacement sim card which made it worse. Next they sent me a replacement phone. The first replacement, which I have no clue how it passed re-certification, because you could see the 3-pin charging area from the front of the phone. The housing was not seated correctly on the phone after they refurbished the phone. So I called verizon back again and I got a second replacement. This one was free of any visual defects that I could see and runs fine on ICS or JB roms.. However I am still getting awful signal where I used to get 3-4 bars 4G all constantly on my original nexus.
If I reboot the phone it locks on the tower at 4G for maybe 1-2 minutes, then drops to 3G full bars, then slowly over the next few minutes drops to 0-1 3G bar(s) and then down to 1X.
I suppose my next move is to get yet another replacement and see if I have any better luck. This is becoming a nightmare.

Radio Signal Issues That I don't Understand

Hello,
Recently bought S3 and am in the process of switching to Sprint from Vzw. Currently both phones are active (although my Rezound still has Gingerbread as the ICS upgrade still hasn't dropped and I don't yet want to register my phone as rooted through HTC). I've been comparing the radio signals via settings (ie NOT using bars as the measure) in different location and I'm completely confused at some of the results.
At home, I have good reception on both. The Rezound is pulling around -56 and the S3 -65. Not bad from all that I heard about potentially bad radio. But yesterday, I was in my drs office, and the Rez was pulling -65 and the S3 -104 and was freakin' roaming on data when I'm in a full, strongest area Sprint cell area. I also checked them at the hospital when I was there and had similar results although the S3 wasn't roaming at that point but the radio was still at -104...I had one bar and made a trial call to my DH and it was crystal clear...better than Vzw has ever been.
So what the heck is going on? I understand that GB and ICS have some difference in measuring the radio strength but for the radio to nearly match at home, and drop by half only 1 mile from where I live and be roaming at 2 miles from where I live is craziness. What do you think is going on? Is this an S3 problem and Sprint problem or what? My DH's S3 is acting the same way so I'm confused and at a loss.
Problem is, after only having it two days, we're both so in love with it that we can't imagine not having the S3!
Any info, guidance, etc would be uber helpful. I have to decide in the next week whether to go with Sprint or stay with Vzw which I DON'T want to do and also do an AOL on my Vzw account.

I also checked the area where it started roaming on data and there was FULL service for data in the area and no roaming area for miles around.

Personally for me. Sprint. Hated every second of that carrier.
Sent from my SAMSUNG-SGH-I747 using xda premium

But this isn't about Sprint as much as it is about the S3 radio. Why the variance? is that normal? Should the radio numbers be dropping by half? Is it one of the problems that I've heard some of the S3's have with weak radios?

I have the vzw s3 and never had any such things happen to me. When I was with t-mobile on my s2 it would do tg is sort of thing all the time. Just randomly go from 4 bars to AT&T service then back to t-mobile at 1 bar.
Dunno what ur problem is though.
Sent from my SCH-I535 using xda app-developers app

I have had the same issue since I got my first, so Sprint exchanged it. The new phone is the same.
Stock I was showing a steady signal at about -103 a lot of the time, holding the phone at lower left made it worse.
With CM10 and AOKP (JB):
It's not just that the signal shows week but it jumps around too. At home I range from -90 to -220, yet I can always make a call.
Data often shows x1 then roaming then 3g (no LTE here). And as soon as it roams I show 4 bars, but it never stays long enough to measure DB.
I tried most of the other modems and didn't see any great improvement in signal.
With Team Sonic V0.0.7 and LG8 modem (ICS):
Signal is steady holding at -97 at work, which is about 2 miles from tower.
In any configuration if I get close to the tower I can see -75 but it falls of very rapidly.
No lower left effect using the LG8 modem
I looked at my old EVO 4G, it's off Sprint but still reads signal strength at -97 on CM7.2 GB).

It is possible that these anomalies involve Sprint's network, which is under total reconstruction, not just the phones. It would be useful to test both devices with an app such as CDMA Field Test, to determine if they are connecting to the same tower transmitters.

I notice odd things about the signal also. Sometimes it seems like the signal reporting gets "stuck" and the signal level doesn't change again for a while (both dbm reading and signal bars). When it's working normal, I can see the signal go up and down a little in real-time, but when it's "stuck" i can walk all around my house and it never changes. Going into the debug menu and the signal is stuck there too, both 1x and EVDO. Sometimes toggling airplane mode gets it "unstuck". Hopefully i'm not the only one seeing this. I'm updated to LG8.

I have messed with field testers, still learning what all this stuff means. It's always been good for me to have issues with computers, then I get to learn how to fix them, or at least report the errors to the right people.
I will look at towers to see how to identify them. Then compare the phones connections.
I need to learn more about asu; I think higher is better. Many times I have 1asu but now 8asu -97db.
I guess HwID is the tower name.
I show Cdma RSSI -96dBm and -15 Evdo Eclo 15 dB*10
I will play with other phones when I get home.
I don't think we are likely to be getting LTE now, we are more likely to get what ever comes next like we did with 4G. But that would be great so let's hope it clears up one day and I have LTE to boot!
Thanks!
No your not alone, I have been seeing the same strange stuff, I guess there aren't many of us though or it would be on the news. Still there have been very few times I have not been able to use the phone. But it acts like I am in the mountains when I am only miles from the tower, I don't expect it to work well then there really is low signal. But I am half convinced that it's a reporting problem.

Sprint is currently using the 1900 mHz band, Verizon uses 700 and 800 mHz I think. In general, the higher the frequency the worse the building penetration. So, if you get deep into a building with lots of metal and concrete Sprint will definitely fade first. Over the long term their Network upgrades will use the re-purposed Nextel 800 mHz freqs to improve building penetration but for now things kind of suck in big office buildings.
Of course, they may be doing maintenance on the tower near your drs office.
Also, many large buildings will actually add cell phone repeaters but they don't always cover the Sprint 1900 band.

lost+found said:
I guess HwID is the tower name.
Click to expand...
Click to collapse
No, I don't know what that is, but there actually not a "tower name" in CDMA. Rather there is a set of IDs mapped to each sector radio on a tower covering part of the angular pie around it.
Typically there are three sectors per tower, each with its own Base Station. There is a System ID (SID), a Network ID (NID), and a Base Station ID.
Under the Debug menu of the GS3, these IDs are listed on the 1X Engineering Protocol screen. EDIT: Or you can just install the third-party app CDMA Field Test to harvest that data. It also will produce a log of the BSIDs with signal strength, etc.

Sweet, I will play with this all later!
Thanks!

Two cool apps to figure out what tower and SID you are on are Antennas and OpenSignal, both in the Play store for free. Just don't leave them running or they will kill your battery.

poit said:
Two cool apps to figure out what tower and SID you are on are Antennas and OpenSignal, both in the Play store for free. Just don't leave them running or they will kill your battery.
Click to expand...
Click to collapse
I've never tried Antennas, but I know that Open Signal Maps methodology for plotting tower locations is very flaky. It is based on triangulating very rough crowdsourced data harvested by users with rough estimates of signal strength. Even the developer's website warns about inaccuracy. From the Google Play Store description of Antennas, it is trying something similar. So beware of this imputed mapping voodoo.
Trying to map tower sites from the coordinates that the tower transmitters broadcast is a whole different story, and has its own complexity. It is very accurate for some tower sites, but for some others the squawked coordinates are offset a large distance away per sector. I have always been able to discern my real tower sites precisley from this data, with some analysis and surveying, but only because I have a Rosetta Stone: A map of the actual Sprint towers available at S4GRU.com.
Note that none of these methods will map an LTE tower directly. These are CDMA tools.
Also, I wouldn't install Antennas myself (or some other apps such as Netmonitor) because I don't trust their intrusive permissions, but some folks don't care as much about protecting their privacy as I do.
Open Signal's on-screen reporting of the Base Station IDs themselves, which just come from the Android telephony API, is probably okay. But I can get that from CDMA Field Test, which also has better logging functionality and a safer permissions profile.

ydoucare said:
I notice odd things about the signal also. Sometimes it seems like the signal reporting gets "stuck" and the signal level doesn't change again for a while (both dbm reading and signal bars). When it's working normal, I can see the signal go up and down a little in real-time, but when it's "stuck" i can walk all around my house and it never changes. Going into the debug menu and the signal is stuck there too, both 1x and EVDO. Sometimes toggling airplane mode gets it "unstuck". Hopefully i'm not the only one seeing this. I'm updated to LG8.
Click to expand...
Click to collapse
After playing around some, I can definitely confirm there is some sort of bug that's causing the signal reading to get "stuck" and stop updating. Just sat here with a -84 dbm signal for a couple hours, never budged. As soon as i toggled airplane mode, the signal dropped down and now I see it fluctuating a little as I move the phone around in my house. Prior to toggling airplane mode, the signal level didn't budge no matter what I did. Can anyone else confirm this exact behavior? I'm running stock LG8 rooted.

I looked at the signal on my old EVO using CDMA Field Test and can confirm that both phones are using the same cell and reporting the same signal strength. If I am reading the EvDo signal data correctly the S3 is pulling a much stronger data signal.
Then I tried to setup my wife's old stock EVO to bring to work and it would FC when you tried to bring up the dialog on CDMA Field test, but the notification part was showing the same signal. Then I checked for updates and low and behold there was one. After the update that phone dropped to -102.
I hope I will still be able to root that EVO after the update, I have plans for it that don't include the stock ROM.
I also looked at information in the debug menu; I could see the same basic signal strength there but I could also observe the effect of holding the phone by it's lower left, a drop of of about 5 db, hold from the top and back up, very repeatable. I have to try one of those foolish stick on antenna boosters to see if it would help carry signal around my hand. In addition to building penetration I wonder is the switch to 800mhz might improve this.

Not to change subjects but so far I'm seeing a huge reduction in coverage from my old Evo 4G to my new SG3. I'm now testing a replacement SG3 and I'm done with Sprint if this reduction holds true.
I was with the Evo and I live in a fringe coverage area I guess and the loss of coverage with the SG3 puts me out of usable phone coverage at work or even on the road. Technical support offered a femtocell (free?) to resolve issues which I declined for now.
Many others finding a reduced coverage?

trehouse said:
Not to change subjects but so far I'm seeing a huge reduction in coverage from my old Evo 4G to my new SG3. I'm now testing a replacement SG3 and I'm done with Sprint if this reduction holds true.
I was with the Evo and I live in a fringe coverage area I guess and the loss of coverage with the SG3 puts me out of usable phone coverage at work or even on the road. Technical support offered a femtocell (free?) to resolve issues which I declined for now.
Many others finding a reduced coverage?
Click to expand...
Click to collapse
same problems on femto, seems to have hold solid 3g connection all day today though. Sprint doing massive network overhaul, prolly causing alot of connectivity issues. I have posted numerous threads thinking it was s3 radio, when in reality I believe it to be Sprint. Not 1 loss of connection to Airvana today. The problem for me has only plagued the data connection and not voice.
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feel sorry for you guys who suffer from bad speeds
Sent from my SPH-L710 using Tapatalk 2

SGS2 3G Network Slow Downloading/Streaming

ive tried rtn reset
ive tried scrn reset
ive tried data profile resetting
ive tried pulling battery
ive tried adjusting build prop
ive tried calberating signal
ive tried goig back to stock EL's-FI
ive tried updating prl and profile
ive tried wiping cache
ive tried clear data from google FWS
According to this video google has enabled ipv6 for android 4.0 devices, i just dont know forsure if the sgs2 Sprint has support for it. Anyways check out this video it has to also have more valid packets in the traceroutes as well. And here is a link to get you going with sprints IPV6 i guess you have to call them to get it switched over https://www.sprint.net/index.php?p=ipv6 Sprint tec support has no idea what to do with switching im gonna try another tec LOL if you visit that link on your mobile phone you will see it at the top if your on a IPV4 or IPV6 and my phone says IPV4
here is explanation of ipv6 on utube.
http://youtu.be/-Uwjt32NvVA
###update##
Tmobile got this update with there ICS 4.0.4 And i just got off the phone with sprint mobile broad band tec and he said that our phones should be on a IPV6 as well with the ICS update and to call this number 18007267864 if your phone is running on ipv4, its samsungs tec support line and theyre able to resolve the issue, im checking into now........LOL just as i suspected well the only thing we can do is have you ship the phone to us.....bla bla........only or repair center would have those kinds of answers to your questions......no you cant talk to them theyre our secret phone scientists, we dont offer them to the public......LOL...

What's your location?
At home i get 4 bars, which is a beast connection to me nd when i'm at school(Jobcorps) i get 1 bar and i can barely get on facebook

i get 4/5 bars at my location. Ive always had good signal throughout NorthCounty SD until now. IDK if i messed up some deep internel setting or maybe fried my antenna because sprint says theres no network issues in the area so hope i can get some help.
Sent from my SPH-D710 using Tapatalk

what ive also noticed is when i get a solid connection on 3g it will run all day and night i just do my little calberating signal dance and the bad is if i switch to wifi and then back to 3g my 3g will start acting the way the logcat logged phone responding in previous post.
Sent from my SPH-D710 using Tapatalk

I also live in north county. My signal is never really excellent, but I have horrid 3g speeds in most places. Especially in Esco at my house. But when I was at Palomar my speeds weren't bad. My wife has an evo that seems to load things faster than me.
Sent from my SPH-D710 using Tapatalk 2

that sucks
Sent from my SPH-D710 using Tapatalk

Its likely just a network thing. Same this happened last Spring when I was in Austin. They were doing some network updates and 3g was plain garbage for a few months in areas where it was previously good, worse in others. Then all of a sudden it was fine again. Still Sprint though lol
I guess you could try other modems. Have you done this yet.

The bars are no indication of Sprint 3g reception. The bars indicate VOICE reception. You'll need to go to settings and look at the signal strength in dbm in order to check it out.
Also ... Sprints network is almost universally slow (sub 100 kbps) except in low demand areas, areas where there has been band aid fixes (extra T1 lines), and areas where network vision upgrades have been completed (1.5mbps -> 2.0 mbps on average).
As stated, if you're in an area undergoing NV upgrades then 3g and reception can be wonky as they fix up the towers.

I agree, sprint is slow. I don't think its any specific device/radio/rom. Slow is slow. Even if a speed test app says I'm getting blazing fast 3G, I still can't browse fast worth a damn.

Apk07 said:
I agree, sprint is slow. I don't think its any specific device/radio/rom. Slow is slow. Even if a speed test app says I'm getting blazing fast 3G, I still can't browse fast worth a damn.
Click to expand...
Click to collapse
That's cause of all the iPhone people... they're clogging the network.
Sent from my SPH-D710 using xda premium

I live in north county. My speeds here aren't great. But using sprints proxies and the fc15 modem I can stream youtube unless I go past rancho penasquitos. Miramar is bad too.
sent from MY BAD A$$ ET4G

lol, the iphone invasion. maybe these logcats can help find what can be added to a build.prop code so jumping between wifi and 3g wont kill the 3g data transfers, idk, what i do know is that this has to mean something.
Sent from my SPH-D710 using Tapatalk

welcome to sprints crappy network
Sent from my SPH-D710 using XDA

elliwigy said:
welcome to sprints crappy network
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
Well that depend on location... Here in Arecibo, PR service is exelent. :beer:
3G up to 2.75Mbps (30.6GB in 22 day)
Reception:
Inside home 2 - 3 bars
Outside 4 - 6 bars most of the time Full
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I found out another way to tinker it and it seems to be working so far ive done it a couple times now. I had it on wifi and then switched to 3g. i couldnt get a horrible signal even. all i did to fix was turn on airplane mode then rebooted phone waited until my phone loaded up and then turned airplane mode back off and now all of a sudden 3g is good. Ive tried this twice and it works im gonna try it maybe 10 more times just to see if thats it. Please if you try post your results as well
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lol. if you have to try that many times your phones either messed up or its sprint.. but your theory doesnt have any hard evidence besides you have airplane mode on and reboot n turn it off.. i can only pull 1x speeds with full bars.. definately cant watch any video and like your name.. No 4g For Me lol
Sent from my SPH-D710 using XDA

Omar04 said:
Well that depend on location... Here in Arecibo, PR service is exelent. :beer:
3G up to 2.75Mbps (30.6GB in 22 day)
Reception:
Inside home 2 - 3 bars
Outside 4 - 6 bars most of the time Full
Sent from my SPH-D710/Nexus7 using Tapatalk v2.4.1
Click to expand...
Click to collapse
PR is a NV market and deployment is going pretty rapidly. LTE is popping up in a lot of places and fiber/micro back haul has dramatically increased 3g speeds. Won't be suprised if they finished upgrading the entire market by early next year.
Anyways...this is what sprints 3g network will look like once they finish the NV upgrades... not the sub 100 kbps connections we get ...

Updated Original Post with some more Info on ipv6 and linked video to googles june 6 2012 open ipv6 deployment and explaination about pastebin links.
Makes me wonder if sprint and samsung are gonna be on the same page, maybe it will show in the Official JB update
thanks again

Omar04 said:
Well that depend on location... Here in Arecibo, PR service is exelent. :beer:
3G up to 2.75Mbps (30.6GB in 22 day)
Reception:
Inside home 2 - 3 bars
Outside 4 - 6 bars most of the time Full
Sent from my SPH-D710/Nexus7 using Tapatalk v2.4.1
Click to expand...
Click to collapse
That is great and what I expected by now for 3g speeds in major USA cities. The best 3g I have seen is about 1.25Mbps

Ive had my issues with this phone also. The questions i had was 1 Sprint? 2 The phones radio 3 rom/kernal/modem. I live in a real good sprint area. i usually run 1-2.5mb down. I do notice that all 3 epic touches ive owned had wacky radios. Signal goes up and down. That is part of problem. Ive had some roms/ kernals that WOULD not have any good speed at all. I was just on a rom and source kernal and Speeds were terrible. At the same same location i flashed back to stock and used kies to update to bone stock fi27 and poof 2mbps down where it was 200k max. Try stock and see. Also the speed test app IS a joke. its awful. Try this test it seems to be very reliable. http://i.dslr.net/tinyspeedtest.html The screen shot below is in my house for some reason i get very low signal but outside its 4/6 bars. Still 1.4 mb down! I blame the ****ty at&t EDGE tower 100 ft from house.
I notice the fi27 modem goes to sleep and has trouble waking up. Not an issue with fh13 which is neck n neck tie for best modem with el29.

T-Mobile One - Pixel 2 XL Signal Issues?

Well I'm testing out T-Mobile in my area since AT&T is frankly getting too expensive for me. I received my SIM card today, turned the phone off, put it in, and powered back on. Everything seems to be working and upon initial boot I show LTE.. Then I eventually see 3G, then H+ ... My area is saturated with LTE for T-Mobile and I'm a bit confused as to why I'm having such an issue with signal. Signal with my AT&T wasn't horrible, but never dropped LTE on me while in my home.
Is there anything specific I can do to improve reception at all? I am running DP2 of Android P.. Maybe there's an issue there.. I can't seem to figure this out. T-Mobile says everything should be running fine as the coverage is there.

jbarcus81 said:
Well I'm testing out T-Mobile in my area since AT&T is frankly getting too expensive for me. I received my SIM card today, turned the phone off, put it in, and powered back on. Everything seems to be working and upon initial boot I show LTE.. Then I eventually see 3G, then H+ ... My area is saturated with LTE for T-Mobile and I'm a bit confused as to why I'm having such an issue with signal. Signal with my AT&T wasn't horrible, but never dropped LTE on me while in my home.
Is there anything specific I can do to improve reception at all? I am running DP2 of Android P.. Maybe there's an issue there.. I can't seem to figure this out. T-Mobile says everything should be running fine as the coverage is there.
Click to expand...
Click to collapse
Just a thought, don't know if it'll help or not. Have you thought about fastbooting a different radio from the latest 8.1 factory image?? I honesty don't know if there's any difference between them, but it maybe worth a shot. If your bootloader unlocked of course

Badger50 said:
Just a thought, don't know if it'll help or not. Have you thought about fastbooting a different radio from the latest 8.1 factory image?? I honesty don't know if there's any difference between them, but it maybe worth a shot. If your bootloader unlocked of course
Click to expand...
Click to collapse
Always unlocked, and I did flash back to the May 8.1 update. It did improve a little.. it's just a puzzling situation. There's a T-Mobile tower less than a mile from me up on a hill a bit. It's very close.. Maybe too close? I don't know.. I get LTE from it.. Luckily a signal booster from them is free and may help. So far I haven't dropped signal completely since going back to 8.1 but it's running close to -119 which I think if memory serves, is very low.

I have been on T-Mobile for years. My signal on my Pixel 2 XL has been really good except my friend's new apartment, but I think it's because the building is blocking the signal really heavily.

jbarcus81 said:
Always unlocked, and I did flash back to the May 8.1 update. It did improve a little.. it's just a puzzling situation. There's a T-Mobile tower less than a mile from me up on a hill a bit. It's very close.. Maybe too close? I don't know.. I get LTE from it.. Luckily a signal booster from them is free and may help. So far I haven't dropped signal completely since going back to 8.1 but it's running close to -119 which I think if memory serves, is very low.
Click to expand...
Click to collapse
10 to 1 your actually too close to the tower and the signal is actually going over the top of you. What happens when you get 2-3 miles away from it. This is all just spec on my part though ?

Badger50 said:
10 to 1 your actually too close to the tower and the signal is actually going over the top of you. What happens when you get 2-3 miles away from it. This is all just spec on my part though
Click to expand...
Click to collapse
I never thought of that.. my house is a total dead zone. I drove around town and was getting 100+Mbps download speeds, amazing signal. So it's not the phone/radio. It's either I'm too close, or something odd with the tower. Maybe it's an old 2G tower they 'turned into' LTE? I don't know, I do know it's one of the oldest radio towers in town.. I drove as close to the tower as I could without trespassing.. I know the signal could be going over my head, but it only pulled about 23Mbps ... Closer to downtown I was pulling 120+Mbps on the speed test..
Not sure there's anything I can really do other than ask for a booster for the house and see if that helps. I can do without signal at home due to the Wifi calling, but is that a risk? I have a landline, but only for work.. May have to pull double duty.. All this is to save myself some money.. 4 Paid Lines with T-Mobile is cheaper than 3 Paid lines and one free line with AT&T.. it's crazy..

It may have something to do with the Android Beta's, I remember seeing signal issues like this on the Oreo beta as well.
Are you still seeing signal issues on the may security patch?

There is a tmo specific flash for June.

And the build is working for the most part....
---------- Post added at 02:26 PM ---------- Previous post was at 02:24 PM ----------
jbarcus81 said:
Well I'm testing out T-Mobile in my area since AT&T is frankly getting too expensive for me. I received my SIM card today, turned the phone off, put it in, and powered back on. Everything seems to be working and upon initial boot I show LTE.. Then I eventually see 3G, then H+ ... My area is saturated with LTE for T-Mobile and I'm a bit confused as to why I'm having such an issue with signal. Signal with my AT&T wasn't horrible, but never dropped LTE on me while in my home.
Is there anything specific I can do to improve reception at all? I am running DP2 of Android P.. Maybe there's an issue there.. I can't seem to figure this out. T-Mobile says everything should be running fine as the coverage is there.
Click to expand...
Click to collapse
Its not just P Dev Preview, having same issue on 8.1.0

AndroidDevices said:
Its not just P Dev Preview, having same issue on 8.1.0
Click to expand...
Click to collapse
Damn that sucks, Call up tmo tech support and have them investigate that issue. They usually do a test in your area, and if they can't fix the issue they'll make note of it and install another tower.

tarroyo said:
Damn that sucks, Call up tmo tech support and have them investigate that issue. They usually do a test in your area, and if they can't fix the issue they'll make note of it and install another tower.
Click to expand...
Click to collapse
They built a TMO Build for June : 8.1.0 (OPM4.171019.021.E1, Jun 2018, T-Mobile)

AndroidDevices said:
They built a TMO Build for June : 8.1.0 (OPM4.171019.021.E1, Jun 2018, T-Mobile)
Click to expand...
Click to collapse
Does it fix the issues you were having?

tarroyo said:
Does it fix the issues you were having?
Click to expand...
Click to collapse
Havent had any issues so i would say YES!:good:

The latest June release did fix some issues.. but didn't fix the issues in my home. Seems the signal in the area has issues penetrating some buildings. A tower is close but the theory from T-Mobile and others that I've talked to on here and elsewhere is the tower is just a bit too close and likely going over my head. They sent me a CellSpot. This thing is amazing! Connects to my ISP and uses that to 'phone home' to T-Mobile. It sends out full signals of 3G/4G and 4G LTE. It's amazing and free! Sends a strong signal outside of the house and around too.. T-Mobile is something else!!

So when you say ISP, you mean T-Mobiles network?

galaxys said:
So when you say ISP, you mean T-Mobiles network?
Click to expand...
Click to collapse
No, it's actually connected to my ISP Suddenlink. I don't know how it all works, but through the internet, when I'm using LTE instead of regular Wifi, it's using the T-Mobile Network but through my ISP connection. I don't know how it works, but my signal is roughly -60 to -50 at all times inside and outside around my house.

Unable to flash this zip
AndroidDevices said:
Havent had any issues so i would say YES!:good:
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Click to collapse
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For some reason it is saying incorrect zip format for that TMO build zip you guys linked.