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[Q] Lost 3G, all hope gone?

Alright, the short of it, I flashed the wrong radio. I flashed an AT&T radio by mistake and I own a T-Mobile Nexus S. So, afterwards I realized that I no longer had 3G because of it most likely.
In a bid to try and fix it, I have tried everything I can think of. I have disabled and re-enabled data, re-flashed KB3, APN switching, check in menu with all types of settings, re-flashed customs ROMs, tried to revert to backups, and at this point I'm up to returning to stock and system updating to GRJ22. Still with no 3G data.
Is there anything I'm missing? Does anybody have any suggestions? The last option I can think of would be to get a new SIM card since my SIM is from before T-Mobile had 3G and I've heard they can have problems with 3G. I should also note that my signal has been pretty weak, not making it better than -100 db. at best most of the time.

Signal Dropping Constantly

Hello,
I'm at a point where I don't know what else to do. My signal is dropping and or changing from H to H+ to 3G to no connection constantly. I'm supposed to be on LTE. Everything had been working fine until this morning.
Here is what I've done to try and fix the problem:
- re-flashed ROM (Liquid Smooth, Paranoid Android, etc) Same results. And when I say I re-flashed I mean I started from scratch, cleared everything, etc.
- flashed different modems (3)
- went back to stock
- went to AT&T and tried a new SIM card
- pulled battery, pulled SIM, etc
Everything leads back to the same performance which is that my signal is not stable. I'm in NYC so I know my signal should be stable. It has been every day until today. And of course I did speak with ATT when I was there today and they said that there are no issues. I know they're right because every phone in there was getting LTE.
So now I'm thinking it's a physical problem with the phone?
Any advice is welcome. Thanks in advance.
-Tony

tonyfiore75 said:
Hello,
I'm at a point where I don't know what else to do. My signal is dropping and or changing from H to H+ to 3G to no connection constantly. I'm supposed to be on LTE. Everything had been working fine until this morning.
Here is what I've done to try and fix the problem:
- re-flashed ROM (Liquid Smooth, Paranoid Android, etc) Same results. And when I say I re-flashed I mean I started from scratch, cleared everything, etc.
- flashed different modems (3)
- went back to stock
- went to AT&T and tried a new SIM card
- pulled battery, pulled SIM, etc
Everything leads back to the same performance which is that my signal is not stable. I'm in NYC so I know my signal should be stable. It has been every day until today. And of course I did speak with ATT when I was there today and they said that there are no issues. I know they're right because every phone in there was getting LTE.
So now I'm thinking it's a physical problem with the phone?
Any advice is welcome. Thanks in advance.
-Tony
Click to expand...
Click to collapse
Hey tony i know the isues you having but one thing you have to understand is that Network carriers Label the 4G logos"4g" although you maybe in a Hspa/Hspa+ location(which is more of a 3g+) lol
as for the data connection drop this has been an issue with JB for awhile where the apns wont stick either on boot or time out etc.....
best bet to know if its your phone or not is to revert to stock and test it if stock keeps the data connection then you know the phone is fine if it doesnt then its just apart of JB issues more then half of JB runners run into this issue.

He did go back to stock...
If the issue is still happening on stock, I'd say have AT&T replace the phone.
Sent from my Slim Bean Skyrocket
Quando Omni Flunkus Moritati

Thanks for the replies.
Yes, at this point I've done everything I could think of with regard to trying different scenarios. I'm definitely leaning towards the fact that perhaps the phone itself is on the fritz. Unfortunately the phone is out of warranty so I can't just have it replaced. I'm not due for an upgrade until June. And I don't have insurance on the phone. That sort of limits my options. AT&T did credit me $100 for my troubles, which is better than nothing. For an early upgrade I'd have to pay like $250, I believe (minus the $100 credit) in addition to renewing my contract with AT&T. Just thought I'd give you guys the breakdown.

Also, I want to reiterate the fact that I am in midtown Manhattan (NYC) where the signal is always full bars of LTE service. It's been consistent for months. This started yesterday (the signal drops) and has been inconsistent ever since. Obviously I've polled other AT&T users around me and they are not having any connection issues. And yes, I'v e gone back to stock more than once. The signal definitely comes and goes constantly. It's not just what the meter says on top of the screen. I use an application to see what mobile network I'm connected to and I'm getting the same inconsistencies looking there as I do when I look up at the signal meter in the status bar.

I had this happen too. Turned out my phone was broke.
I've got best buy's warranty and they replaced the phone. Sorry I'm not more help, but the fact that the phone just doesn't get a signal is a possibility. And I just wanted to let you know, you're not alone
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

[Q] Skyrocket on Tmoblie dilemma

So, I got a AT&T Skyrocket s2 i727 from amazon. its already unlocked and i noticed it was stuck on edge speeds when i put in my sim card. I researched why it was on google and came across this site, which i have to say is amazing!. i have read every topic there is about how to root/unroot, flash roms, radios, kernels, etc. over the last i dunno, week or so. So i decided to give it a try since everything is step by step, which im not illierate towards, i understood what it all meant. first thing i started out with is odim and flashed the cwm touch for the skyrocket, which was easy. i then researched some more and seen i wanted to make this phone on tmoblies 4g service, which here in iowa is called IWireless, anything tmoblie works with this since they are an affiliate of tmoblie. I started out downloading all the radios, which i have:
cwm-tmob-kl1-radio
Telus_SGH-T989D_Kj3_radio
Tmo_SGH-T989_KID_radio
Tmo_SGH-T879-UVLG3_radio
Tmo_SGH-T989_VK1_radio
Tmo_SGH-T989_UVLE1_radio
Blaze_4G_LB7_ICS_Radio_MOD
so as u can see ive got pretty much all of them. then i found which rom i wanted to use, i downloaded CM9 and CM10. for the CM9 build i seen the best kernel for it: InstigatorX-CM9-Kernel3-v6.0.3. also downloaded the gapps for each cm build.
then i followed the instructions the CM team left, backup, factory reset, format, install the radio, then cm os and finally the gapps.
I did all this with each radio and each cm, everything. no i did not brick my phone im alot smarter than that lol. whenever i try a radio, usually im just stuck on the edge speeds. i go into my settings on the phone and it wont save me selecting the lte/gsm/wcdma, just stays on the wcdma preferred....when i did each radio i started from fresh, cleaned everything out, even tried the davlik wipe in the advanced settings in cwmtouch.
so i read in other forums that ppl tried to flash over radios. that didnt work, i was left with no signal at all.
i still have the imei number on my phone when i dial *#06#, so i havent lost that, but every radio i use my baseband version says unknown.
also when i enter the service code in for cm10 and cm9, it wont save my selction of what bands id like to use....
so any help here would be appreciated...im losing my mind over this and it sucks...thanks for anyones help, i need it.
Edit:
switched back to stock ics from my recovery, installed the blaze radio, showed i had 4g, but had no bars. i called someone and after i called them it went back to edge. went to search for networks and all i can get is E again. under settings it shows im on edge 2....so im close but obvisously not close enough. i live in a major city here in iowa and i live a few blocks from a wireless tower...any ideas?

dragonkev_ia said:
So, I got a AT&T Skyrocket s2 i727 from amazon. its already unlocked and i noticed it was stuck on edge speeds when i put in my sim card. I researched why it was on google and came across this site, which i have to say is amazing!. i have read every topic there is about how to root/unroot, flash roms, radios, kernels, etc. over the last i dunno, week or so. So i decided to give it a try since everything is step by step, which im not illierate towards, i understood what it all meant. first thing i started out with is odim and flashed the cwm touch for the skyrocket, which was easy. i then researched some more and seen i wanted to make this phone on tmoblies 4g service, which here in iowa is called IWireless, anything tmoblie works with this since they are an affiliate of tmoblie. I started out downloading all the radios, which i have:
cwm-tmob-kl1-radio
Telus_SGH-T989D_Kj3_radio
Tmo_SGH-T989_KID_radio
Tmo_SGH-T879-UVLG3_radio
Tmo_SGH-T989_VK1_radio
Tmo_SGH-T989_UVLE1_radio
Blaze_4G_LB7_ICS_Radio_MOD
so as u can see ive got pretty much all of them. then i found which rom i wanted to use, i downloaded CM9 and CM10. for the CM9 build i seen the best kernel for it: InstigatorX-CM9-Kernel3-v6.0.3. also downloaded the gapps for each cm build.
then i followed the instructions the CM team left, backup, factory reset, format, install the radio, then cm os and finally the gapps.
I did all this with each radio and each cm, everything. no i did not brick my phone im alot smarter than that lol. whenever i try a radio, usually im just stuck on the edge speeds. i go into my settings on the phone and it wont save me selecting the lte/gsm/wcdma, just stays on the wcdma preferred....when i did each radio i started from fresh, cleaned everything out, even tried the davlik wipe in the advanced settings in cwmtouch.
so i read in other forums that ppl tried to flash over radios. that didnt work, i was left with no signal at all.
i still have the imei number on my phone when i dial *#06#, so i havent lost that, but every radio i use my baseband version says unknown.
also when i enter the service code in for cm10 and cm9, it wont save my selction of what bands id like to use....
so any help here would be appreciated...im losing my mind over this and it sucks...thanks for anyones help, i need it.
Edit:
switched back to stock ics from my recovery, installed the blaze radio, showed i had 4g, but had no bars. i called someone and after i called them it went back to edge. went to search for networks and all i can get is E again. under settings it shows im on edge 2....so im close but obvisously not close enough. i live in a major city here in iowa and i live a few blocks from a wireless tower...any ideas?
Click to expand...
Click to collapse
Flash a T-mo radio that gets you on the network, then look around and find the proper APN settings for your provider. You will have to go into the APN settings on your phone and create a new APN with those specific settings for it to work properly. I am not sure what those settings are for T-mo but you should be able to find them with the search feature.

hitekredneck said:
Flash a T-mo radio that gets you on the network, then look around and find the proper APN settings for your provider. You will have to go into the APN settings on your phone and create a new APN with those specific settings for it to work properly. I am not sure what those settings are for T-mo but you should be able to find them with the search feature.
Click to expand...
Click to collapse
so ive went back to the recovery, which the phone was set at before everything, flashed the radios of blaze and the uvle1 and it shows i have 4g but it bareley even runs. also each time i flash a new radio my apn settings are there, iwireless automatically downloads them to ur phone when u turn it on, and i verified the apn settings with another iwireless phone, an alcatel 995(4g phone). and now i can send a text message, the other phone receives it but the other phone doesnt receive mine. any other ideas? im going to try flahsing all the tmo radios to the phone and see what i can do. also is the radio and the modem the same thing? do i need to find a tmo modem and flash it on there and then a radio?
EDIT: nvm radio and modem same thing it seems like...lol. anyways ive tried the other radios, i completely lost signal with them as to they wont work. does anyone have any other radios that might work? i dont care if it gets 4g just at least 3g lol. im just geting tired of working on this and about to give up this really blows.

dragonkev_ia said:
so ive went back to the recovery, which the phone was set at before everything, flashed the radios of blaze and the uvle1 and it shows i have 4g but it bareley even runs. also each time i flash a new radio my apn settings are there, iwireless automatically downloads them to ur phone when u turn it on, and i verified the apn settings with another iwireless phone, an alcatel 995(4g phone). and now i can send a text message, the other phone receives it but the other phone doesnt receive mine. any other ideas? im going to try flahsing all the tmo radios to the phone and see what i can do. also is the radio and the modem the same thing? do i need to find a tmo modem and flash it on there and then a radio?
EDIT: nvm radio and modem same thing it seems like...lol. anyways ive tried the other radios, i completely lost signal with them as to they wont work. does anyone have any other radios that might work? i dont care if it gets 4g just at least 3g lol. im just geting tired of working on this and about to give up this really blows.
Click to expand...
Click to collapse
Modem and radio are same thing. Other than an APN issue I know of nothing else other than a #*number combination to enable lte settings. I am not sure what that combination is though as I live in a not-lte area and have not needed it. You may want to search the SkyJB thread as I think it was discussed at length in there. And I would try each and every one of the t-mo radios/modems as you might actually find one that works to enable 3g/4g in your particular area.

[Q] Horrible reception-- new phone development

I've started having some horrible issues with my phone connecting to Verizon networks properly. I used to be able to connect to 4G networks at my house and surrounding area with no issue, but now I've been having the worst time getting it to lock. Currently I'm connected to 3G at -99dBm in my household.
I originally was running stock, but fully rooted, S-Off. I've since switched to trying AOKP and now I've settled on Sinless GPe 3.4.7. I have not seen any real difference between them as far as getting a good connection to the network. I started switching ROMs well after I've noticed an issue, and I have not done much of anything to my phone in the last few weeks that I could attribute to the change. I've never dropped the phone or damaged it in any way.
I just recently traveled across the state and would run speedtests next to my wife's iPhone 5c and 19/20 times she'd show full bars with LTE service while I was either on 3G or no service at all. My phone will connect to 4G sometimes though, it's just not that often.
I read that there may be an issue with my SIM card, so I stopped in and had it replaced. The guy seemed very confused about the state of my phone software, so he blamed any issue I was having on the software installed. Regardless I did get a new SIM card installed. It did not seem to help at all. Can anybody help me? I'd hope to not have to go through the hassle of attempting to get the phone replaced!
Bootloader information:
HBoot-3.16.0.0000
Radio-0.89.20.0321
After rebooting my phone, my phone locked to an LTE signal at -112dBm. It does not speed test at over 3Mbps. Testing my wife's iPhone shows her at -100dBm and she was able to pull 30Mbps down.

There is talk of poor signal reception/speed in gpe threads. Cm based Roms, dunno. Try flashing a sense ROM, do some tests and report back
I recommend clean ROM or any other ROM on Verizon base

I just received my M8 yesterday and am having the same issues (both wifi and LTE) running the latest PA. Going to try something with a VZW base and report back.

wtoj34 said:
There is talk of poor signal reception/speed in gpe threads. Cm based Roms, dunno. Try flashing a sense ROM, do some tests and report back
I recommend clean ROM or any other ROM on Verizon base
Click to expand...
Click to collapse
I reloaded my backup of the Stock ROM and I am still seeing the same issues. It seems to connect sometimes but most of the time it will not. It seems like its just not getting a good lock. I am having trouble even using the phone at my house now whereas I've always had great service here. Doing a speed test now, the phone states 3G service, tested with 705 ping, download of 0.17, upload shot up to 58.19 (which obviously isn't true) and then froze while testing and has been here for over three minutes.

serotoninzero said:
I reloaded my backup of the Stock ROM and I am still seeing the same issues. It seems to connect sometimes but most of the time it will not. It seems like its just not getting a good lock. I am having trouble even using the phone at my house now whereas I've always had great service here. Doing a speed test now, the phone states 3G service, tested with 705 ping, download of 0.17, upload shot up to 58.19 (which obviously isn't true) and then froze while testing and has been here for over three minutes.
Click to expand...
Click to collapse
I would run the RUU and try again, and just see if something got boogered

Confirming as well that the reception isn't the greatest with this phone/radio in the so so service areas.
I live out in the country. Never had good reception with Sprint no matter the phone. Switched to Verizon with an LG G2 and service was fantastic at home for the 7 months I owned it. I moved to the M8 and now phone service is spotty at my house. It's the radio for sure. Wifes verizon moto works great at home as well.

I've had the same issue, updated radios, flash back to stock, and everything else. The radio on this phone IMO is terrible, even when it does get 4G I get like 8 mbps down with 4 bars of 4g. Once in a great while i'll get 18 - 20 down with 5 bars of 4g.

I've been experiencing the same things recently as well. It also affects sending SMS messages. I am on stock too (with s-off). Nothing changed on my phone though, it just started dying.

Never had signal issues. I live out in the boonies too. Signal is strong and switching between 3g and 4g has been smooth. I've been able to download torrents as fast as 5mb/s. Speed test results have been just awesome. As far as signal goes, it's been better than my note 3, DNA, and my wife's droid mini. And this is my second m8. My son has the first and it is the same as mine.
I would look into exchanging them if they don't keep up with other phones. The radio in this phone is actually pretty damn sweet, so if u got a funky one, I'd exchange it. Def try the ruu first, then exchange if that doesn't help.
Sent from my HTC6525LVW using Tapatalk

[Q] anybody else having 4g connection issues?

About 3 weeks ago after installing the update of liquidsmooth 4.4.4 i randomly started dropping to 3g service in places that i normally had full 4g available. It has slowly gotten worse to where if im not on wifi, than the phone is pretty much useless. i normally have full coverage everywhere. so i originally thought that maybe something had gotten messed up on the update, so i did a clean install of liquidsmooth 4.4, and blackbird kernal and same thing still occurred. also tried carbon rom and slimrom, and no luck. so for the fun of it, i went ahead and reflashed the phone back to stock from backups and rerooted it, updated the modems and reinstalled liquidsmooth w/ blackbird kernal, and same thing. i have went through all the mobile networks settings and tried everything and nothing seems to help, idk if that update screwed something up or if its an issue that others have been experiencing as well, or if im just screwed and my phone phone is dying.... any help is appreciated thanks

rideforlife7 said:
About 3 weeks ago after installing the update of liquidsmooth 4.4.4 i randomly started dropping to 3g service in places that i normally had full 4g available. It has slowly gotten worse to where if im not on wifi, than the phone is pretty much useless. i normally have full coverage everywhere. so i originally thought that maybe something had gotten messed up on the update, so i did a clean install of liquidsmooth 4.4, and blackbird kernal and same thing still occurred. also tried carbon rom and slimrom, and no luck. so for the fun of it, i went ahead and reflashed the phone back to stock from backups and rerooted it, updated the modems and reinstalled liquidsmooth w/ blackbird kernal, and same thing. i have went through all the mobile networks settings and tried everything and nothing seems to help, idk if that update screwed something up or if its an issue that others have been experiencing as well, or if im just screwed and my phone phone is dying.... any help is appreciated thanks
Click to expand...
Click to collapse
I'm currently running OmniToad, and ran CM 11M8 for a short while. On T-Mobile at least, with the custom ROMs it's normal to see H+ only when data is being transferred; it will drop back to 3G otherwise. When I ran the stock ROM on the Relay, it would always say "4G" regardless of whether it was in UMTS (3G) or HSPA+ mode. Apps like SignalCheck or CellMapper will tell you which mode it is really in.
On the other hand, if data transmission is only going through as 3G, it could be a phone issue or a tower issue. Is LTE available in your area, or are they just getting it set up? I know when T-Mobile was upgrading the Chicago area to provide LTE, there were a few glitches here and there.
It was stupid for T-Mobile to brand HSPA+ as "4G" but that's a different rant.

Bobby Tables said:
I'm currently running OmniToad, and ran CM 11M8 for a short while. On T-Mobile at least, with the custom ROMs it's normal to see H+ only when data is being transferred; it will drop back to 3G otherwise. When I ran the stock ROM on the Relay, it would always say "4G" regardless of whether it was in UMTS (3G) or HSPA+ mode. Apps like SignalCheck or CellMapper will tell you which mode it is really in.
On the other hand, if data transmission is only going through as 3G, it could be a phone issue or a tower issue. Is LTE available in your area, or are they just getting it set up? I know when T-Mobile was upgrading the Chicago area to provide LTE, there were a few glitches here and there.
It was stupid for T-Mobile to brand HSPA+ as "4G" but that's a different rant.
Click to expand...
Click to collapse
yea LTE has been in this area for quite a while now, i had it with my S4 and it worked perfectly, i never had a problem with the service on the relay either up untill a few weeks ago the internet speed and and data coverage was great, not quite as fast as the LTE on my S4 but it was still more than adequate, i used to use the hotspot and stream netflix on my laptop. now i can usually get a text to send but calls usually fail and if i try and use the internet its impossible. it almost seems like its doing the exact opposite of what it should be doing, as soon as i try and use anything (not while connected to wifi) than it drops coverage to 3g/edge/ or to nothing at all. Im leaning towards the hardware failing side, but i figured i might as well give it a shot and post it and see if maybe i wasnt alone. thank you for your reply.
small note of background on me: first time posting ever in this forum but have been using the tools and roms from it for a long time, so im not a complete noob, but i definitely still have a lot to learn.