[Q] Signal strength drops and semi-random reboots? - Epic 4G General

Okay, here's my problem. I've got my Samsung Epic up and running (finally), but for two annoying bugs: or it might be one bug with two parts.
One, the signal strength "wobbles" a lot, going from no bars (but still holding service) to almost full bars. I assumed at first that this is just a quirk of the preferred tower configuration around my home.
Part two is more annoying. Sometimes it will, apparently somewhat randomly, lose all signal, which prompts the phone to reboot. Actually it's not a TRUE reboot, it's just the half-reboot that happens when the Android shell crashes: return to boot animation, then reload everything. Often, it'll do this several times in a row. It was doing it horribly when I was running the AOSP version 4 ROM, so I flashed back to a semi-stock configuration (stock ROM plus ClockworkMod). But it's still doing it. Modem version is EC05, and I'm running on a Verizon MVNO. Can anyone offer suggestions?

Try updating your modem to the EI22 released modem and get on an EI22 ROM.
Sent from my SPH-D700 using XDA App

Yeah, EI22 fixes most of the signal dropouts for me. Just update your modem.
On EH17 my bars would randomly go to 0 and data would drop out even though I'm parked on a repeater here at work, getting -76db signal (that's really, really good).

i just got a new (or probably refurb) phone from best buy after my original broke. (thank you black tie) and this new stock phone does this same stuff you are describing. this phone sucks! reboots, lock ups, bluetooth doesnt work, keyboard skips.. .what a joke.
so should i call sprint and try to get something other than an epic or go to best buy and have them order me another one? any suggestions?

Well, following the advice upthread I've gone ahead and installed the stock EI22 update for the Epic. We'll see how it turns out.

goblue30093 said:
i just got a new (or probably refurb) phone from best buy after my original broke. (thank you black tie) and this new stock phone does this same stuff you are describing. this phone sucks! reboots, lock ups, bluetooth doesnt work, keyboard skips.. .what a joke.
so should i call sprint and try to get something other than an epic or go to best buy and have them order me another one? any suggestions?
Click to expand...
Click to collapse
Black Tie is supposed to give you new phones. Keyboard skips are Samsung's error. Flash a custom ROM with the fixes implemented by the DEVs here.

Followup: after flashing the Sprint stock EI22 ROM, I'm still getting wacky signal strength fluctuations, but it's stopped resetting, which makes me happy. I'd be happier if I could get it to stick with the strong signal, but I'll live.

Try using an app like Network Info or Tasker to see if your phone is hopping towers while the signal is fluctuating. Maybe a PRL update will help.

AdamaDBrown said:
Followup: after flashing the Sprint stock EI22 ROM, I'm still getting wacky signal strength fluctuations, but it's stopped resetting, which makes me happy. I'd be happier if I could get it to stick with the strong signal, but I'll live.
Click to expand...
Click to collapse
It could be maintenance or a tower failing near you.

kennyglass123 said:
Black Tie is supposed to give you new phones. Keyboard skips are Samsung's error. Flash a custom ROM with the fixes implemented by the DEVs here.
Click to expand...
Click to collapse
im sure you are right, but doesn't anyone think it should just work from the store? i know its a novel idea but i think top notch phones should work right out of the box.

goblue30093 said:
im sure you are right, but doesn't anyone think it should just work from the store? i know its a novel idea but i think top notch phones should work right out of the box.
Click to expand...
Click to collapse
Yes it should. Unfortunately the keyboard skips have yet to be addressed by Samsung. There is a maintenance update being worked on. Some people are still getting reboots with the new OTA for Gingerbread but not many. So maybe that will be addressed as well as the keyboard skips.

quick99si said:
Try using an app like Network Info or Tasker to see if your phone is hopping towers while the signal is fluctuating. Maybe a PRL update will help.
Click to expand...
Click to collapse
I'll try those--I was trying to use CellID Info for that purpose, but it hasn't reflected any changes at all between high signal and low signal. So far Network Info II isn't either, but we'll see. I did try a PRL update the other night, to no avail.
kennyglass123 said:
It could be maintenance or a tower failing near you.
Click to expand...
Click to collapse
That's possible. God knows I'm out in the middle of nowhere, so quality of service probably isn't a high priority. I haven't seen it reflected in other Verizon devices I've looked at the last couple days, but then I haven't exactly been looking at them that closely.
My signal does seem a lot more consistent today--right now I'm stuck at 2-3 out of 6 bars, but it's holding that constantly with very little variation, less even than I would think was normal. Maybe it was a network problem after all and not just my device. That would be nice.
Edit: Looks like I spoke a little too soon, as I just had one complete signal dropout. But it's still better than it was.

That could be when they just swapped out amplifiers at the tower that was giving you trouble. Also it seems Sprint service is subject to a lot of dead zones. I got a big dead spot in my house.

kennyglass123 said:
That could be when they just swapped out amplifiers at the tower that was giving you trouble. Also it seems Sprint service is subject to a lot of dead zones. I got a big dead spot in my house.
Click to expand...
Click to collapse
I'm not on Sprint, it's flashed to a Verizon MVNO, so I'm on VZW towers.
Strangely, I've seen my AT&T Android phone lose signal too a couple times today--which is bizarre, because it almost never does that. AT&T around here is only 2G, and slow 2G at that, but the signal is very reliable. Just enough to make me wonder if something weird is going on locally.

In case anyone's still interested in this: it's still doing it, so it's pretty clearly the phone. However when I took it into a building where there's normally poor signal, it stopped doing it and held the stronger signal. Is it possible that because this is a Sprint radio, it's trying to default to 1900 MHz, instead of the stronger 850 signal?

Related

Not another 3G/EDGE issue

well let me start off by saying that I have read all of the threads from day one about the fluctuation issues but have never yet experienced it myself, until today.
I have never had the issue before but today when I woke up I turned on my phone after its charge, i have never turned it off during a charge before, and I am experiencing this problem now.
My question is, is it time to root and flash a new radio to the N1? I have put off rooting because I havent had a reason to yet.
Thanks in advance for the input.
Ps. i am not new to rooting so I aint scureedddd.
oopsieee wrong section, can a mod please move this to either General or Q&A!
thanks
Orangeandblue302 said:
oopsieee wrong section, can a mod please move this to either General or Q&A!
thanks
Click to expand...
Click to collapse
I don't have an answer for ya, but I moved the thread
thanks for moving mindfrost, i had a brainfart lol.
anyone with input? i'd much appreciate it. The fluctuation is still going on but its not such a big deal because I am usually on wifi. Should I just wait for a new OTA from google?
Orangeandblue302 said:
well let me start off by saying that I have read all of the threads from day one about the fluctuation issues but have never yet experienced it myself, until today.
I have never had the issue before but today when I woke up I turned on my phone after its charge, i have never turned it off during a charge before, and I am experiencing this problem now.
Click to expand...
Click to collapse
I don't see how these things could in any way be related...Who is your carrier? You may want to contact them and see if they are having issues with a local tower or have a tower out so are now experiencing a weaker 3G signal and thus bouncing.
I am on T-Mobile, trust me I was just as confused. I know that turning off a device while charging "shouldn't" have anything to do with fluctuating signal thats the only thing I did.
Orangeandblue302 said:
I am on T-Mobile, trust me I was just as confused. I know that turning off a device while charging "shouldn't" have anything to do with fluctuating signal thats the only thing I did.
Click to expand...
Click to collapse
have you tried another radio (software) version? what version are you using now?
i am on ere27
my radio is 4.03.00.21_2
he's on stock too...I only have this problem when holding the phone. Herd its normal.
I just started experiencing the 3g problem too. Didn't have this problem before. Completely stock (unrooted) with the OTA update. I thought it could just be the weather or some temporary maintenance but I've been experiencing it for about 3 days now.
Southern California area.
This better get fixed, I bought this phone the day it came out.
This is totally wierd, I have had no problems whatsoever signal wise with my nexus. Actually I have had a significant increase in quality and signal coming from a Mytouch3G. I have none of the problems at all that are described with signal, screen or anything. Got lucky I guess.
@pongalong - thats about the same time I have been experiencing the problem. Its def not the weather here because it has been beautiful the past week, highs in the 70's but in Feb we had a colossal snow storm which knocked power out and I had great signal then, its so odd.
@sinister - I didnt have any problems whatsoever until about two days ago.
Matter the towers are being worked on... one day my signal was horrid only the next day to find out the upgraded the towers where I live....
Tmobiles great here in portland oregon..
Went about 45 miles out of my area and the problem seemed to disappear (although it seemed to be around when I was indoors - probably just due to interference). Hopefully they're just doing some work in my area like mentioned above.
Any improvement or updates from the OP?
Hopefully T-Mo is almost ready for 21Mb/s.
It seems to have somewhat went away..it still fluctuates but only where I am below 2 bars of 3g. I'm getting used to just switching to 2g only in low 3g areas. Then I get full edge usually. Kinda weird but ill just wait for an update I guess.

PRL messing with my phone signal

okay im running pancake 1.5 and i have the latest prl version. i noticed my signal is worse now than before and it drops out alot. could there be a fix for this? maybe roll back to a previous prl? im also noticing the phone gets laggy at times, then i loose the evo icon, then it comes back after 30 seconds.... idea's???
Which radio (baseband) are you running?
im running flipz prl and radio
cant vouch for battery
can definatly vouch for signal
flipzmode said:
Which radio (baseband) are you running?
Click to expand...
Click to collapse
the stock one for 1.5 i guess, i haven't installed any other ones. im currently flashing your 2.1 rom...do you recommend a custom radio?
You can always revert you just have to find someone that has the old PRL file.. If you give me a little bit, I might be able to find that for you on my old service computer.. It crapped out last week so I don't know if I still have it or not..
The PRL lets the phone know how it is supposed to interact with roaming towers, so if the updated PRL removed a tower near you, due to contract or whatever, you are most likely having your issue because of that.. Also, if it adds a tower that previously wasn't in your PRL, you could be polling between the two, back and forth with no solid connection, that would explain the EV drop..
Also, if the output was decreased for whatever reason, you could just be too far away from the tower...
Give me a little while, and I will PM you if I can find a way for you to revert. I am pretty sure you have to have RMS so you might not be able to with my file..
fixxxer2008 said:
the stock one for 1.5 i guess, i haven't installed any other ones. im currently flashing your 2.1 rom...do you recommend a custom radio?
Click to expand...
Click to collapse
Yea definitely upgrade the radio. They actually aren't custom radios, just ones stripped from newer roms or phones.
Check http://geekfor.me/radio for the list. The newest one out is http://geekfor.me/radio/radio-242000310/ which 90% of people have better battery life and signal quality. However depending on where you live and what equipment is used in your area, that isn't always the cost. Most of the people who aren't using 2.42 are using this one http://geekfor.me/radio/radio-241040203/
azyouthinkeyeiz said:
You can always revert you just have to find someone that has the old PRL file.. If you give me a little bit, I might be able to find that for you on my old service computer.. It crapped out last week so I don't know if I still have it or not..
The PRL lets the phone know how it is supposed to interact with roaming towers, so if the updated PRL removed a tower near you, due to contract or whatever, you are most likely having your issue because of that.. Also, if it adds a tower that previously wasn't in your PRL, you could be polling between the two, back and forth with no solid connection, that would explain the EV drop..
Also, if the output was decreased for whatever reason, you could just be too far away from the tower...
Give me a little while, and I will PM you if I can find a way for you to revert. I am pretty sure you have to have RMS so you might not be able to with my file..
Click to expand...
Click to collapse
wow man you are smart(i mean that in most literal sense possible)
if what he says is true (i dont doubt it is) then id advice switching between the two and experimenting. i know avalaunch posted a solid method of rollback, alltho i believe it concerns a hard reset, and your msl, which is apprently hard to get. good luck, i think the guy i qouted would be more of a help.
flipzmode said:
Yea definitely upgrade the radio. They actually aren't custom radios, just ones stripped from newer roms or phones.
Check http://geekfor.me/radio for the list. The newest one out is http://geekfor.me/radio/radio-242000310/ which 90% of people have better battery life and signal quality. However depending on where you live and what equipment is used in your area, that isn't always the cost. Most of the people who aren't using 2.42 are using this one http://geekfor.me/radio/radio-241040203/
Click to expand...
Click to collapse
can i flash back to stock radio if need be? thanks though, ill give it a go!
Yeah Ill be honest. I think in my area, I got better signal before using the 2.42. I think Im gonna roll back and see how it goes.
fixxxer2008 said:
can i flash back to stock radio if need be? thanks though, ill give it a go!
Click to expand...
Click to collapse
Yup there is a link to download/flash the stock one in there too. http://geekfor.me/radio/baseband-104010921/
fixxxer2008 said:
can i flash back to stock radio if need be? thanks though, ill give it a go!
Click to expand...
Click to collapse
ah, see now here i can help. avalaunch also posted the stock radio a long time ago, flashable in recovery, and i can vouch for a sucssful flash and rollback. decided new radio in combo of flipz prl indeed boosted my signal. like i said, no go on the battery but overall worth it in the end.
i do have to say, because i was warned, radio flashing is indeed tricky buisness, do some reading up.
kbizzle said:
Yeah Ill be honest. I think in my area, I got better signal before using the 2.42. I think Im gonna roll back and see how it goes.
Click to expand...
Click to collapse
Because, as I have said numerous times before, and no one listens, the service you are getting is dependent on your a)location b)distance from tower c) PRL (for roaming and interconnectivity with other towers)..
The only thing the radio does is manage the signal power input and output of a device..
yeah im going back to the stock radio, the 2.1 radio signal was far worse.
Ive noticed just after the other day my phone roams almost constantly, I have the 60664 PRL and yet it still roams even in my own house. What can I do?

Flaky connections

Ever since the last OTA update I have had issues with data connections, and the signal itself seems to drop randomly. I am less than 2 miles from the tower, and on my Galaxy Tab the signal is nice and steady. On the Evo, sometimes I have not only no 3G but not even slower than heck connection (no 4G where I am staying at the moment.)
I've reloaded with no change in behavior. I am completely stock, and unrooted. Revision 003 device in case that matters.
Thanks...
I started a thread on this last week, what worked for me was downgrading the radio to the second latest instead of the latest. Haven't had that issue since. Ymmv though
Sent from my blah blah blah blah
It's a sprint thing. Im rooted with older version of fresh and yes, recently the data connection has just dropped. Browser sits idle and I get impatient. Claims I've read come from theories that sprint is configuring network for both data and voice at same time. Svdo. So I dunno, we'll see what pans out.
Sent from my Evo
fachadick said:
I started a thread on this last week, what worked for me was downgrading the radio to the second latest instead of the latest. Haven't had that issue since. Ymmv though
Sent from my blah blah blah blah
Click to expand...
Click to collapse
How do you downgrade the radio?
mbaseball3 said:
It's a sprint thing. Im rooted with older version of fresh and yes, recently the data connection has just dropped. Browser sits idle and I get impatient. Claims I've read come from theories that sprint is configuring network for both data and voice at same time. Svdo. So I dunno, we'll see what pans out.
Sent from my Evo
Click to expand...
Click to collapse
It's also a sprint thing. My speeds are the same, but at least I get a consistent data signal now - before I downgraded, my evdo signal would just disappear for a minute or two periodically before coming back. It hasn't happened at all since I downgraded my radio.
notinkeys said:
How do you downgrade the radio?
Click to expand...
Click to collapse
this thread, but make sure you let it go for a while when flashing - DON'T PULL THE BATTERY. It may take a long time to fully flash, but don't get impatient and pull the battery, people have bricked their phones doing that. just let it do it's thing. There should be additional instructions in that thread if you've never flashed a radio before and the radio that worked best for me was EVO_Radio_2.15.00.09.01.
Great. I'll try. I don't mind mucking with PCs since I work with computers for a living, but when it comes to my phone I'm really careful- especially since I'm job hunting these days. Can't afford to brick the phone, but this is a bit difficult since it is often unwilling to connect.

Sprint, Me, or My Phone...?

I've searched numerous forums/posts/threads for help, and I now come tail between legs, waiving the white flag! I give up! I need help!
I've noticed my download speeds have slowed dramatically over the past few weeks. What once was (4g) 4-5 down & 1-1.5 up, is now 1-1.5 down & 1 up. Real world experience has drawn me to these figures, but I've also confirmed similar speeds with speedtest. (Yes, I know speedtest isn't 100% accurate) I've tested speeds over several days, using the same tower. Each time, I was approximately 200 yards away, outside with a direct view of the tower, with full signal strength. Testing was done between 1 & 3 am. I used speedtest and downloaded the same pdf from my email to compile my unofficial info. Out of curiosity, I did the same tests on 3g and found almost identical results (slightly slower up speeds).
In my pursuit to find an answer, I've tried many things. I updated my PRL (01120). I found a post that showed how to increase 4g signal strength (-110) and increase refresh rate. I've called Sprint and had them check the tower (nothing was wrong per the CS rep). I've rebooted. I've toggled airplane mode. I've odin'd older and newer modems. So far, nothing has worked.
In one of the posts I read, I found a list of Sprint/Samsung's "#" codes. These allow you to view/change various things in your phone. I dialed ##786# and found my baseband ending in EE03 (Correlates with current modem). My wimax was EC04. I then dialed *#1234# and it showed samsung's firmware. My PDA ended in EB13 and my phone s: was EE03.
My frustrations were only exacerbated when my buddy on T-mobile stood next to me and pulled constant 10+ speeds!
I've read numerous posts from people in other markets pulling speeds from 7-12... I'd settle for my 4-5 again! Side note: this is a valley wide (Las Vegas) problem for me... I chose to focus testing on 1 particular tower that had given me good speeds in the past.
So...
1: Am I effin crazy? Should I be happy to have crappy 4g because many have none?
2: Could it be a combination of rom/modem/kernel that is causing my issues?
3: Could the discrepancies between the build modes (or what appears to be) I got from the "#" codes be an issue?
4: Is sprint BS'n me? Could they actually have 4g issues and that be the cause?
5: Is there anything else I can do/try to improve my signal?
I know slow speeds aren't the end of the world, but I have a job that allows me to play on my phone quite a bit. I always use wifi at home, but would love to be able to use 4g @ work again.
Thanks in advance for any help! I know it was a long read! I just want my epic back... I can't fathom going back to my POS hero! Lol!
Sent from my SPH-D700 using XDA App
traumajeff said:
I've searched numerous forums/posts/threads for help, and I now come tail between legs, waiving the white flag! I give up! I need help!
I've noticed my download speeds have slowed dramatically over the past few weeks. What once was (4g) 4-5 down & 1-1.5 up, is now 1-1.5 down & 1 up. Real world experience has drawn me to these figures, but I've also confirmed similar speeds with speedtest. (Yes, I know speedtest isn't 100% accurate) I've tested speeds over several days, using the same tower. Each time, I was approximately 200 yards away, outside with a direct view of the tower, with full signal strength. Testing was done between 1 & 3 am. I used speedtest and downloaded the same pdf from my email to compile my unofficial info. Out of curiosity, I did the same tests on 3g and found almost identical results (slightly slower up speeds).
In my pursuit to find an answer, I've tried many things. I updated my PRL (01120). I found a post that showed how to increase 4g signal strength (-110) and increase refresh rate. I've called Sprint and had them check the tower (nothing was wrong per the CS rep). I've rebooted. I've toggled airplane mode. I've odin'd older and newer modems. So far, nothing has worked.
In one of the posts I read, I found a list of Sprint/Samsung's "#" codes. These allow you to view/change various things in your phone. I dialed ##786# and found my baseband ending in EE03 (Correlates with current modem). My wimax was EC04. I then dialed *#1234# and it showed samsung's firmware. My PDA ended in EB13 and my phone s: was EE03.
My frustrations were only exacerbated when my buddy on T-mobile stood next to me and pulled constant 10+ speeds!
I've read numerous posts from people in other markets pulling speeds from 7-12... I'd settle for my 4-5 again! Side note: this is a valley wide (Las Vegas) problem for me... I chose to focus testing on 1 particular tower that had given me good speeds in the past.
So...
1: Am I effin crazy? Should I be happy to have crappy 4g because many have none?
2: Could it be a combination of rom/modem/kernel that is causing my issues?
3: Could the discrepancies between the build modes (or what appears to be) I got from the "#" codes be an issue?
4: Is sprint BS'n me? Could they actually have 4g issues and that be the cause?
5: Is there anything else I can do/try to improve my signal?
I know slow speeds aren't the end of the world, but I have a job that allows me to play on my phone quite a bit. I always use wifi at home, but would love to be able to use 4g @ work again.
Thanks in advance for any help! I know it was a long read! I just want my epic back... I can't fathom going back to my POS hero! Lol!
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I have no 4g and get .05mbps to .25mbps on 3g. I just want a consistent .6mbps .
Sent from my Macbook Wheel using TapaMac
You are not alone in this. I do not have an explanation but there have been several threads here and over at android central of people on Sprint complaining of slow speeds and whatnot. Some people believe that a bunch of roaming agreements Sprint had with some other carriers have dropped off over the past few months and many people that once had great service are now getting crappy service. Since you specifically are complaining of 4G speeds this may not be the case for you, but you certainly are not alone when it comes to people all over the country recently complaining of slower speeds overall.
Mine just went back to normal levels late yesterday, otherwise I can also vouch for about 1.5 dl/ul speeds all weekend.
ee03
try installing a different modem from here http://forum.xda-developers.com/showthread.php?t=1123103 try ef02 first
My speed has been **** lately also. Even pandora has begun skipping. If this doesn't improve, I will not be renewing my contract when my phone upgrade is available.
ee03
I had problems on the ee03 modem at first when i went to ef02 then auto updated to ef10 my 3g speeds increased to a point in which I could play netflix consistently 4g improved,, also use ##3282# to change 4g connection times.
Did you think to try an official rom/modem instead of the leak you are currently running? Like EC05 for example?
Sent from my SPH-D700 using XDA App
muyoso said:
Did you think to try an official rom/modem instead of the leak you are currently running? Like EC05 for example?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I am in SoCal and used to get 7000-8000 bpbs upload speeds and lately they have been topping at 4000. The upload speeds are consistently in the 1400s. EC05 modem..can't explain it. Its like its being capped
Sent from my SPH-D700 using XDA Premium App
muyoso said:
Did you think to try an official rom/modem instead of the leak you are currently running? Like EC05 for example?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Yeah... I was on EC05 when my problems started. I went on to the next one in hopes that things would improve.
This is driving me nuts! If there's something I could fix, then I'd love to figure it out. If its sprint that is sucking right now, then I'd at least have an answer.
I'm gonna odin in different modems later today and see if any perform better than another. Fingers crossed!
Sent from my SPH-D700 using XDA App
muyoso said:
Did you think to try an official rom/modem instead of the leak you are currently running? Like EC05 for example?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
This seems to be on the right track to me. Do you know anyone else who has an Epic (or any other 4g phone for that matter) preferably running stock? See if they come up with similar speeds at the same place at the same time.
Barring that, I would try to put your phone back to bone stock Froyo and see what you get. Not sure how fluent you are with this, but just boot into CWM and backup. Then use Odin to get to stock Froyo. Don't install any apps, or do anything else to it. Test it out on 4G for a while in the same time and place. If that does not work, try some of the 4G fixes listed in these forums.
If you get decent 4G speeds with this configuration, you know it is something specific to your phone (and more specifically to your software) and you can restore the backup and try replacing just the modem or other tweaks. If you cant get decent speeds running stock, then just restore your backup and curse Sprint and wait
traumajeff said:
I've searched numerous forums/posts/threads for help, and I now come tail between legs, waiving the white flag! I give up! I need help!
I've noticed my download speeds have slowed dramatically over the past few weeks. What once was (4g) 4-5 down & 1-1.5 up, is now 1-1.5 down & 1 up. Real world experience has drawn me to these figures, but I've also confirmed similar speeds with speedtest. (Yes, I know speedtest isn't 100% accurate) I've tested speeds over several days, using the same tower. Each time, I was approximately 200 yards away, outside with a direct view of the tower, with full signal strength. Testing was done between 1 & 3 am. I used speedtest and downloaded the same pdf from my email to compile my unofficial info. Out of curiosity, I did the same tests on 3g and found almost identical results (slightly slower up speeds).
In my pursuit to find an answer, I've tried many things. I updated my PRL (01120). I found a post that showed how to increase 4g signal strength (-110) and increase refresh rate. I've called Sprint and had them check the tower (nothing was wrong per the CS rep). I've rebooted. I've toggled airplane mode. I've odin'd older and newer modems. So far, nothing has worked.
In one of the posts I read, I found a list of Sprint/Samsung's "#" codes. These allow you to view/change various things in your phone. I dialed ##786# and found my baseband ending in EE03 (Correlates with current modem). My wimax was EC04. I then dialed *#1234# and it showed samsung's firmware. My PDA ended in EB13 and my phone s: was EE03.
My frustrations were only exacerbated when my buddy on T-mobile stood next to me and pulled constant 10+ speeds!
I've read numerous posts from people in other markets pulling speeds from 7-12... I'd settle for my 4-5 again! Side note: this is a valley wide (Las Vegas) problem for me... I chose to focus testing on 1 particular tower that had given me good speeds in the past.
So...
1: Am I effin crazy? Should I be happy to have crappy 4g because many have none?
2: Could it be a combination of rom/modem/kernel that is causing my issues?
3: Could the discrepancies between the build modes (or what appears to be) I got from the "#" codes be an issue?
4: Is sprint BS'n me? Could they actually have 4g issues and that be the cause?
5: Is there anything else I can do/try to improve my signal?
I know slow speeds aren't the end of the world, but I have a job that allows me to play on my phone quite a bit. I always use wifi at home, but would love to be able to use 4g @ work again.
Thanks in advance for any help! I know it was a long read! I just want my epic back... I can't fathom going back to my POS hero! Lol!
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Personally I have had such fluctuation that I think Sprint is holding out. I'm sure that they have the capability of limiting data connectivity and speeds and I have heard rumors of them doing this in the past. I wouldnt put anything past Sprint at this point. Maybe give them a call and ask then why you are paying a "premium data" charges with the data speeds are no better than with the Hero. I had some better expierences with my old Moment before I changed to the Epic.
muyoso said:
Did you think to try an official rom/modem instead of the leak you are currently running? Like EC05 for example?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I dont think "official" is the answer. I just got my dad a brand new Epic and it's completely stock and it's slower than mine and I'm on EF02/EF10 GB. I may do a side by side video of the two phones and see just how much of a difference there is.
dr_gibberish said:
This seems to be on the right track to me. Do you know anyone else who has an Epic (or any other 4g phone for that matter) preferably running stock? See if they come up with similar speeds at the same place at the same time.
Barring that, I would try to put your phone back to bone stock Froyo and see what you get. Not sure how fluent you are with this, but just boot into CWM and backup. Then use Odin to get to stock Froyo. Don't install any apps, or do anything else to it. Test it out on 4G for a while in the same time and place. If that does not work, try some of the 4G fixes listed in these forums.
If you get decent 4G speeds with this configuration, you know it is something specific to your phone (and more specifically to your software) and you can restore the backup and try replacing just the modem or other tweaks. If you cant get decent speeds running stock, then just restore your backup and curse Sprint and wait
Click to expand...
Click to collapse
None of my family/friends have 4g on sprint... kids are rocking some POS sammy sliders I got for free, and the woman has a BB Curve. Maybe I'll stop into the local store and see if I can mess with the demo phones.
I thought about going back to bone stock, but I'm gonna go the easy route for now and run through a few modems. If that fails, then back we go!
Sent from my SPH-D700 using XDA App
traumajeff said:
Yeah... I was on EC05 when my problems started. I went on to the next one in hopes that things would improve.
This is driving me nuts! If there's something I could fix, then I'd love to figure it out. If its sprint that is sucking right now, then I'd at least have an answer.
I'm gonna odin in different modems later today and see if any perform better than another. Fingers crossed!
Sent from my SPH-D700 using XDA App
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Click to collapse
After you update your modem go here http://forum.xda-developers.com/showthread.php?t=925898 and update your 4g and 3g connection times. Worked for me.
So here's an update...
First... thanks for all the help/suggestions!
I had already increased my signal strength and refresh rates to no avail. I tried several different modems out and all had the same results. Averaging about 1.5 up and 1 down. Given these findings, I figured it prob wasn't me or my phone. I called CS again, and this time the rep confirmed that the tower in my area was the problem. I asked if it could be a city wide issue and she couldn't confirm this. Being a paramedic, I know most of our zip codes, and they all have issues!
So... final conclusion is: 4g in Vegas sucks right now! Boo!
Sent from my SPH-D700 using XDA App
I'm in philly suburbs and my data dropped a little over a month ago as well. I was getting 1.5 d, 0.3-0.5 up in 3g and 7-8 d, 3 up in 4g. But recently, I have only been getting 0.5-0.8 d in 3g and 3-4 d in 4g. It's some straight up BS
cell phone slots... Good Luck to u guys in the west.

[Q] Switching between 3G and H is such an annoyance... Any help?

I've read up on this and understand it is supposed to be normal, but man does it make my phone so much worse. Every single time a page loads it has to switch from 3G to H. My reception seems like it sucks so bad because of this. Sometimes it doesn't switch. I get good bars everywhere I go, but it feels like I have terrible reception.
I've never understood radios and such. I'm rooted with the stock rom. Would this be better if I tried cyanogenmod with a different radio? There has to be a fix for this issue.
If you solve this for me, I'll kiss you through the internet.
I don't think kissing anyone over the internet would make them want to help you any more
Its how the phone works, its supposed to switch to 3G to H. H comes on when data is more active.
What radio are you using?
IPxSynergy said:
I've read up on this and understand it is supposed to be normal, but man does it make my phone so much worse. Every single time a page loads it has to switch from 3G to H. My reception seems like it sucks so bad because of this. Sometimes it doesn't switch. I get good bars everywhere I go, but it feels like I have terrible reception.
I've never understood radios and such. I'm rooted with the stock rom. Would this be better if I tried cyanogenmod with a different radio? There has to be a fix for this issue.
If you solve this for me, I'll kiss you through the internet.
Click to expand...
Click to collapse
the bars are for your gsm radio, telephone calls. they dont give you an idea on data speeds. do a speed test to see how good of a data connection you have.
simms22 said:
the bars are for your gsm radio, telephone calls. they dont give you an idea on data speeds. do a speed test to see how good of a data connection you have.
Click to expand...
Click to collapse
I knew the bars are for phone calls, but I'm in the city of Chicago and have a hard time believing my data is as bad as it seems. I'll have plenty of times where it shows 3G connection and doesn't switch to H, therefore no data comes through. I've had plenty of times where I didn't believe I wasn't getting data, so I reset my phone and sure enough - data!
I do believe something could be wrong with my specific phone. I might need to try a full reset or flash cyanogenmod. I just didn't want to do that. Especially without checking with you genius's beforehand!
zephiK said:
I don't think kissing anyone over the internet would make them want to help you any more
Its how the phone works, its supposed to switch to 3G to H. H comes on when data is more active.
What radio are you using?
Click to expand...
Click to collapse
How can I check radio version?
I'm running 4.2.2. Baseband version M9615A-CEFWMAZM-2.0.1700.48 Kernel version 3.4.0-perf-g7ce11cd [email protected] #1
Build number JDQ39
Sorry for the delayed response. It is making me wait 5 minutes between posts, even though I'm not a new user and this is MY post. I haven't posted much, but I'm not new Maybe the mods will see this and lift my restriction
IPxSynergy said:
How can I check radio version?
I'm running 4.2.2. Baseband version M9615A-CEFWMAZM-2.0.1700.48 Kernel version 3.4.0-perf-g7ce11cd [email protected] #1
Build number JDQ39
Sorry for the delayed response. It is making me wait 5 minutes between posts, even though I'm not a new user and this is MY post. I haven't posted much, but I'm not new Maybe the mods will see this and lift my restriction
Click to expand...
Click to collapse
The radio is .48.. Baseband is Radio. You can go to http://forum.xda-developers.com/showthread.php?t=2087227 and try out other radio to see if you get better reception.
If you're in a TMO 4G LTE area you can try activating LTE to see if you'd like it any more.
zephiK said:
The radio is .48.. Baseband is Radio. You can go to http://forum.xda-developers.com/showthread.php?t=2087227 and try out other radio to see if you get better reception.
If you're in a TMO 4G LTE area you can try activating LTE to see if you'd like it any more.
Click to expand...
Click to collapse
I can do that, but I'll first have to figure out how to do it. For some reason my drivers say they don't work and it won't let me flash clockwork mod. I was going to make another post about it after I figured this out. Do you think radio could be the issue?
Also, I am on Tmobile, but I thought LTE didn't really work since it was ATT band 4 or something and only very specific areas had it?
zephiK said:
The radio is .48.. Baseband is Radio. You can go to http://forum.xda-developers.com/showthread.php?t=2087227 and try out other radio to see if you get better reception.
If you're in a TMO 4G LTE area you can try activating LTE to see if you'd like it any more.
Click to expand...
Click to collapse
Well, I just found out my APN was the one used when you are on LTE. I changed it to the non LTE version and will test over the next few days. If that was my problem, I'm going to be upset at the Tmobile lady who put in that info.
Please do let us know if it's any better after using the epc APN.
If you flash to the .33 radio, the LTE will turn on and it's very good at holding a data connection. It's just when it's not available and my phone connects to hspa+. I have similar problems as you. My signal indicator works great and its blue but no internet. I'm wondering if i'll need to keep switching apns. I hope not.
thfreedumb said:
Please do let us know if it's any better after using the epc APN.
If you flash to the .33 radio, the LTE will turn on and it's very good at holding a data connection. It's just when it's not available and my phone connects to hspa+. I have similar problems as you. My signal indicator works great and its blue but no internet. I'm wondering if i'll need to keep switching apns. I hope not.
Click to expand...
Click to collapse
Hmm. Some good points. I'll let you know in a few days. If it works better, then I might just leave it. It is interesting that you are in Chicago and LTE works. Makes me want to try it. I'll see how this goes first.
thfreedumb said:
Please do let us know if it's any better after using the epc APN.
If you flash to the .33 radio, the LTE will turn on and it's very good at holding a data connection. It's just when it's not available and my phone connects to hspa+. I have similar problems as you. My signal indicator works great and its blue but no internet. I'm wondering if i'll need to keep switching apns. I hope not.
Click to expand...
Click to collapse
Well, I did my commute this morning and there really was no change. It could be a combination of poor data reception areas and slow switching. I'd like to try to flash a new radio, but I don't know how. I can start a new thread about this, but I'll at least mention my problem here. I installed the Nexus 4 Toolkit and went through all the steps to make sure the drivers were installed correctly and such. I did this a long time ago when I rooted the phone. But something is wrong and it doesn't let me flash clockworkmod. It tells me to go through the steps again, which I have tried.
Is there a way to flash a new radio without clockwordmod?
IPxSynergy said:
Hmm. Some good points. I'll let you know in a few days. If it works better, then I might just leave it. It is interesting that you are in Chicago and LTE works. Makes me want to try it. I'll see how this goes first.
Click to expand...
Click to collapse
I've been tempted to try messing with lte on my nex 4 as well...live in chicagoland...just worried about how good the coverage is and how well the phone would perform outside lte coverage since I drive all over the tri state area and need my phone to be stable for work.
g0rge said:
I've been tempted to try messing with lte on my nex 4 as well...live in chicagoland...just worried about how good the coverage is and how well the phone would perform outside lte coverage since I drive all over the tri state area and need my phone to be stable for work.
Click to expand...
Click to collapse
Lte is amazing in Chicago but not as strong in Chicagoland. However, hspa+ is garbage in Chicago but better in Chicago land.
As for cwm, I prefer twrp. You can just download goo manager from the app store and it will install twrp for you. As far as I know you need to use a custom Rom that supports the older radios or else your calling might mess up. I use aokp.
Sent from my Nexus 4 using xda app-developers app
thfreedumb said:
Lte is amazing in Chicago but not as strong in Chicagoland. However, hspa+ is garbage in Chicago but better in Chicago land.
As for cwm, I prefer twrp. You can just download goo manager from the app store and it will install twrp for you. As far as I know you need to use a custom Rom that supports the older radios or else your calling might mess up. I use aokp.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Well, I tried to use goo manager to install aokp. It seemed like it would work, but nothing happened when I flashed it. It reset and seemed like it was installing something, then I rebooted with no change. Strange.
g0rge said:
I've been tempted to try messing with lte on my nex 4 as well...live in chicagoland...just worried about how good the coverage is and how well the phone would perform outside lte coverage since I drive all over the tri state area and need my phone to be stable for work.
Click to expand...
Click to collapse
Just wanted to let you know... I flashed Cyanogenmod and the 33 radio. Everything is so much better. Connection is quicker when switching, but also the 4G is fast! I should have done this a while ago. Been testing for 2 days. I'm in the city, so not sure about the burbs.
IPxSynergy said:
Just wanted to let you know... I flashed Cyanogenmod and the 33 radio. Everything is so much better. Connection is quicker when switching, but also the 4G is fast! I should have done this a while ago. Been testing for 2 days. I'm in the city, so not sure about the burbs.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2358931&page=10 you might find this thread interesting, might throw this on this morning before work and give it a shot...
g0rge said:
http://forum.xda-developers.com/showthread.php?t=2358931&page=10 you might find this thread interesting, might throw this on this morning before work and give it a shot...
Click to expand...
Click to collapse
I actually tried that a few weeks ago, before I knew what I was doing. I wasn't able to flash it because I didn't have a custom recovery. I'm glad I went to CyanogenMod though. It seems to be faster and there are little things that make it better than stock.
IPxSynergy said:
I actually tried that a few weeks ago, before I knew what I was doing. I wasn't able to flash it because I didn't have a custom recovery. I'm glad I went to CyanogenMod though. It seems to be faster and there are little things that make it better than stock.
Click to expand...
Click to collapse
Yeah I was running paranoid android for awhile, currently running stock for the 4.3 update, contemplating cm 10.2 when that gets solid or PA again once they get everything sorted out from the 4.3 hijinks.
g0rge said:
Yeah I was running paranoid android for awhile, currently running stock for the 4.3 update, contemplating cm 10.2 when that gets solid or PA again once they get everything sorted out from the 4.3 hijinks.
Click to expand...
Click to collapse
I didn't think it would be worth it to switch, but it is. Stock is great, but CM is better. I haven't used paranoid android.
IPxSynergy said:
I didn't think it would be worth it to switch, but it is. Stock is great, but CM is better. I haven't used panandroid
Click to expand...
Click to collapse
Yeah CM has a lot of nice additions, Paranoid is pretty slick...been a fan of that one on multiple devices. It's built around swapping ui dpi...so you can set your phone to act like a phablet or tablet per app...ie...make gmail look like it does on your tablet on your phone. Let's you drop out the soft keys and replace them with a pop up slide wheel/etc and has a lot of the AOSP and CM features like the quick notification toggles etc.

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