[Q] I can't seem to get 4G anymore on G2.. HELP? - G2 and Desire Z Q&A, Help & Troubleshooting

I was using MIUI and it had 4G all the time... then I switched to Virtuous and it had so many problems with reception automatically.
I also tried installing the kernel to fix it, but it didn't work.
so i gave up and I went to CM7 and I am still not getting 4G signal anymore
and I get internet but its ridiculously slow now
PLZ HELP!

could be several things... if it's a rom/radio issue, you're s.o.l. until you can narrow down what's causing it there. did you perform a full wipe between Virtuous and CM7? did you use cwm recovery to perform the wipe? any other weirdness going on besides the apparent lack of HSPA+? I always, even going from one CM-based rom to another, perform a clean wipe either thru adb or, now, thanks to our buddy amazinglarry, using superwipeg2. you might give that a shot (you don't need to wipe efs data unless you're having gps issues, by the way) and install CM7 clean again.
I will say this: when I initially started using the CM7 nightlies, I ran into a weird issue where my "H" icon wouldn't show up, only 3G/E, but I was definitely on HSPA+ as evidenced from speed tests (there's no way I'd be getting 9000+kbps down on 3G). so, very first step: download Speed Test on the app market and, if you're in an area where HSPA+ is strong, see if you can tell whether or not the icon is not displaying for you like what happened in my case. how fast your internet seems to be going isn't really indicative of whether or not you're on HSPA+ or not, you can encounter horrendous lag browsing even in an area where it should be lightning quick. what ended up fixing the missing H icon for me, oddly, was a radio flash. the PC10IMG method of flashing radios is far from intimidating, so even if you're uncomfortable with that kind of stuff, give it a shot. I've had the best luck with the TMO-US post-OTA radio (26.03.02.26) in terms of a good balance between speed and battery life, but ymmv.
if none of that solves your problem, check your APN settings. here is a pretty thorough walkthrough on that.
aaaand if all else fails, call TMO and ask them to give you a hand. of course, don't tell them anything about custom roms or rooting, just tell them you're having a problem where your phone seems to not be receiving HSPA+ signal. it very well could be a goof-up on their end. when I first got my G1 back in the day, I had all sorts of trouble getting 3G and I eventually had to replace my sim card which fixed the problem automatically.
best'a luck.

thank you, it was the Radio. Something must have happened with it somehow you were VERY VERY helpful!

One thing you do have to know as well for Virtuous ROMs is that the so called 4G or H is actually represented as 3G+. So if you look at your signal and see a + behind it, it is using fauxG
EDIT: nm, just ignore what I just said. I completely passed over the fact that you switched to cm7.

Related

is it possible??

Hey guys, I have had a problem recently devolop on my phone, regarding 4g. First, I will start by saying that I have read just about everything I can read regarding broken 4g, but find nothing pertaining to my specific issue. Secondly, is there anyone is the Las Vegas area having issues connecting to 4g? Next, here is quick run down of the issue. I use 4g daily, all the time. I have never had an issue with it. I am currently using Myn's warm two point two, RLS2, on kings #11. Never had an issue with 4g, no matter what ROM i've used actually. I have NEVER flashed a wimax update. I have flashed a radio update, maybe a month ago or so. So I was tethering while on 4g, and I downloaded a modified "sexy" rosy, with the browser button on it. I then booted to recovery, wiped cache and davlik, then flashed the rosie zip and rebooted. Everything seemed fine, rosie worked, and all was well. Then I went to turn on 4g, and it won't connect. Just says scanning, connecting to sprint, disconnected, scanning, connecting to sprint, disconnected. After trying a billion times, once I got it to connect, for about 10 seconds, i had great 4g signal (as i always did prior to this) then it kicked back to 3g, and was continuing its scanning loop. So i restored my nandroid backup (which I made right before I flashed that rosie zip, while 4g was working) and I still have the same problem. So, my question is, is it possible to screw up the RSA keys, having not even flashed a wimax radio update? Or am i just experiencing some insane coincidence, that this started happening immediately after flashing that rosie zip. I am not sure how much troubleshooting i should put into this, seeing as I dont see how its possible that flashing that zip could've screwed up my 4g RSA keys. I am not sure how to figure out if it's my phone or sprint's network that is the problem. I have read some threads on how to check if the RSA keys are still in tact, which I will probably try to test that later, but I have never used a command prompt, or ADB shell before. I guess it's time for to read up on that and learn how to do it. I get confused about if I'm supposed to be doing these commands from the phone or my PC. Does anyone have any opinions, suggestions, ideas, insight? Anything? Any pointers would be super appreciated. Thanks fellas.
Sounds like 4g network went down. Can't be anything else if you were able to actually connect even though it was only for a brief moment.
Sent from my PC36100 using XDA App
Thanks for the reply. That is certainly what I am hoping. I used root explorer to look at my MAC address, via data/misc/wimax and the number it provides me with matches the number under my battery, so I believe that is a good thing. One of the post's I read, regarding this issue, said to rename that number (xxxxxxx.tree.xml) to xxxxxxxx.tree.xml.old. I'm not exactly sure what that will do, or if I should try it. I am hesitant to play with things I dont know about (yet). Any further suggestions or opinions? If I were to call sprint, would they tell me if 4g was down in my area? We did have 4 straight days with some pretty insane and sporrattic lightning storms. Perhaps something got damaged.
thanks
So it turns out 4g is down near my house. I'm on 4g right now, just in a different part of town. Sorry for wasting the thread space. Thanks again

[Q] No Service, No Data, WiFi Slow...

So, i rooted my phone today, bricked it a couple times, then fixed it(this doesnt matter)
Ok, so i was really excited to get this rom:
http://forum.xda-developers.com/showthread.php?t=864445
(I got the trinity, NOTthe Frozen one)
Long story:
So, I install the rom on my phone, no problems...but it seems I'm missing something and I've looked everywhere because i can't sign into Gmail, even with WiFi...Then again, I have no service...3g, or 4g, or for calling. Absolutely no bars in one of the strongest areas of my house. I'm thinking I'm missing some type of modem... I cant find it, I think i found it previously but from a different website, and they didn't even give instructions. Please help me because this is an awesome rom and I don't want to go back to stock rom.
Short story:
-no service, or data service, either.
-Missing some type of "modem" to enable data
-Airplane mode wont turn off. When clicked, it keeps going on and off. Please help!
Thanks in advance.
Not sure if this helps but I was getting major signal drop on 4g. Come to think of it 3g too. I don't think you are missing anything if it boots up and opens. Sometimes devs make tweaks internally that may not be known to us. I know when signal is constantly searching you get major battery drain
UFE (Unidentified Flying Epic)
Well, at least it's not just me.
For me the only way I've found that reliable works is to Odin back to DI18 and start from scratch.
Unfortunately, I basically can't touch CWM afterwards, because doing anything in it seems to bring the bug back.
Hopefully there's a fix out there for those of us that are continually plagued by this rather bizarre issue.
Seems rather strange that reflashing the modem with Odin doesn't even do the trick.
Just to.let u know you said you bricked your phone a few times. If you brick a phone it doesn't come back. You can't brick a phone a couple times. To answer your question sounds lime you need to reflash the.modem. go into.settings and about phone and see what your baseband version is. It should the same as the software you are on. If you are on dk28 then it should be dk28. Also I would upgrade to eb13 since dk28 is ikd school now and to many bugs that were not fixed. Just my 2 cents. Good luck
Sent From My Evo Killer!

im clearly half retarded

so i thought i did the right thing...to start from the top...my old evo broke...got a new evo...didnt update the prl...rooted/flashed a new rom and boom...my internet blows...its stuck on 1x...so..i flashed a sense rom...updated the prl...now im missing something because when i go back to the roms i wanna use...its still stuck on 1x...what am i doing wrong?
phillyzxp said:
so i thought i did the right thing...to start from the top...my old evo broke...got a new evo...didnt update the prl...rooted/flashed a new rom and boom...my internet blows...its stuck on 1x...so..i flashed a sense rom...updated the prl...now im missing something because when i go back to the roms i wanna use...its still stuck on 1x...what am i doing wrong?
Click to expand...
Click to collapse
You're most likely not doing anything wrong. I assume you're using an AOSP rom. Aosp roms show your true signal, if you're on 3g or 1x. Sense roms show 3g all the time, even if you're on 1x. Sense lies to you. Aosp shows the truth. Although there is now a mod that allows you to see true signal on Sense as well now.
Sent from my PC36100 using XDA App
phillyzxp said:
so i thought i did the right thing...to start from the top...my old evo broke...got a new evo...didnt update the prl...rooted/flashed a new rom and boom...my internet blows...its stuck on 1x...so..i flashed a sense rom...updated the prl...now im missing something because when i go back to the roms i wanna use...its still stuck on 1x...what am i doing wrong?
Click to expand...
Click to collapse
A PRL is a "preferred roaming list" and has nothing to do with data speeds unless you're talking about data speeds when you're roaming. Do you mean that you are getting no 3G coverage at all?
phillyzxp said:
so i thought i did the right thing...to start from the top...my old evo broke...got a new evo...didnt update the prl...rooted/flashed a new rom and boom...my internet blows...its stuck on 1x...so..i flashed a sense rom...updated the prl...now im missing something because when i go back to the roms i wanna use...its still stuck on 1x...what am i doing wrong?
Click to expand...
Click to collapse
Are you sure you are getting 3g at all? Sense doesnt tell you when you are on 1x unless you grab an app for that. Are the 1x culprits all aosp and you are just under the impression you are getting 3g on sense when in all reality you are not? Run a few speedtest.net tests and let us know what your speeds are on both on both. I doubt your speed changed.
hmmm...interesting....well im running MIUI...but its weird...because i used to get good signal...i wonder if maybe this is tying in too all the problems it seems a lot of people are having...im gonna run the speed test right now and see
signal and speed arent necessary related, though i believe aosp does calculate that into theirs. On sense it is (almost?) always separate. Anyhow I have only seen a few phones get "stuck" internally at 1x, no worries that would also be fixable.
You may just be having tower issues, thank sprint for that. Another good question is do you get 3g on a diff tower? drive out of the range of your current tower and see what ya get.
yea im gettin a steady 1x from home all the way to work which is about 15 miles away...
my first test:
Ping: 558ms Dl:125 Ul:148
second test:
ping: 807ms Dl: 126 Ul: 140
3rd:
ping: 786ms dl: 126 ul: 143
im not too knowledgable about this stuff....but i feel like the numbers are good right?
No, those are def 1x speeds. Sprint average is 540k. Being that you have used multiple towers i would assume its the phone. Grab easy settings from triforce, luke and see what the settings are. If you cant get back to 3g you may want to grab the 2g/3g toggle from triforce, luke for a buck and set it to hybrid or evdo only and see if that works. Its the only thing that helped me once.
I tried profile restores, other prls, everything. Have you tried any other prls? I wouldnt suggest a profile restore because you dont have 3g and it needs that to provision.
Have you gone into ##3282# (sense rom), and cleared your profile data (top item, then menu IIRC). This will cause the phone to reboot, and do an OTA activation on the subsequent boot.
Have you messed with your 3g settings - meaning, is the device being forced into cdma mode only??
Which rom did you specifically flash?
And I guess most importantly, before you did anything, did you ensure 3g/4g work with the phone in its stock state?
gpz1100 said:
Have you gone into ##3282# (sense rom), and cleared your profile data (top item, then menu IIRC). This will cause the phone to reboot, and do an OTA activation on the subsequent boot.
Have you messed with your 3g settings - meaning, is the device being forced into cdma mode only??
Which rom did you specifically flash?
And I guess most importantly, before you did anything, did you ensure 3g/4g work with the phone in its stock state?
Click to expand...
Click to collapse
I had this same issues awhile back and the quoted text is what worked for me.
you can try a profile restore but it may not activate well without 3g. Sprint told me that themselves, so have others...though it did activate for me, i have seen people get stuck though for a bit...
well...from what i understand i guess i have no idea if 3g was working before...i know 4g did work fine...and it still works weather im using the wimax setting on a sense rom or even before i rooted it....so somebody give me a run down of what to try...i read a lot of those suggestions...and to be totally honest...i have no idea what too do...like i said im kinda new to this whole thing
nevermind...i found the thread with the whole step by step process...thanks for your help guys...i got it up and running

Poor to none 3g speeds

So I'm fairly new to rooting and have been flashing a bunch of ROMs since I have and everything has worked fine but today I have noticed that I can very rarely get 3g in my house and a lot of the times its completely gone, I can't even get 1x. I have not messed with radios and I hadn't planned on doing so but what's going on here has anyone else had similar issues? I've flashed different ROMs after full wipes and still am having troubles. What gives?
Edit:
I am also getting really slow USB speeds. Like 10 minutes to put a nandroid backup onto my sd, this used to take a minute or less. What is happening and how can I fix my phone I'm going on vacation tomorrow I need it working
Do a full wipe in recovery, then flash this: http://forum.xda-developers.com/showthread.php?t=1087077
As far as slow SD speed, are you on an AOSP rom? If so, Chad's incredikernel will fix it. Look around on his thread, I think the latest release has it incorporated.
Yea I was trying MIUI so that's that problem.
Edit:
Whew you are a a life safer that brought back my great 3g speeds. I would like to know what exactly this did though and if I can flash new ROMs again and what might have happened to cause the problem.
Another cause for this to happen is that if u flash a Rom with Sprint source and u call the *228 it will mess your phone up and you will need to go back to the incredible official froyo to fix it... I had this issue my self ...
Sent from my Incredible using Tapatalk
I thought I remembered hearing something about turning the phone on or off while in airplane mode causing this too, but I could be wrong. Glad that you got it working, if you have more questions feel free to ask.
I'm having problems with 3g as well. Has anyone tried applying this then going back to another rom?
It's my understanding that the GB leak fixes it, and you can go back to the rom of your choice after flashing it.

[Q] CM nightlies - no cell data

Noob post incoming. I did my best to search around and didn't find much. Hate creating a new thread but was locked out from posting in CM dev thread for obvious reasons. Not too experienced in the world of root, so forgive my ignorance. This will hopefully be a quick question:
I've tried running the CM nightlies for the last two days on my T-Mobile M8, and the only big problem is a complete lack of cell data. It displays that I have bars, and while it cuts in and out often (which I expect), I can't get a drop of data to go through. Even at full bars.
I've seen a few people mention connection issues, but didn't see anyone saying anything about a complete lack of cell data. I'd normally just chalk it up to being a nightly build issue, but since I can't find it mentioned elsewhere, I'm wondering if maybe I'm just doing something wrong. If not, no worries, but I'd be stoked if I can run it as a daily at the moment.
Anyone have any advice on what I might be doing wrong, or how I can resolve it?
Edit:
Chrome itself displays error that "Wi-Fi and mobile data are turned off" when only wifi is turned off.
I just tested calling and SMS and both are working with Wi-Fi off. So obviously I'm maintaining some type of radio connection.
Thanks a ton in advance!
New nightly. Same problems.
Bump.
@thefunkyprimer
I just got your PM. Unfortunately I know nothing about T-Mobile and/or why you would be having the issues. What have you tried? Switching APNs? Switching from 3G to 4G? I also haven't run CM longer than five minutes in a couple years. So I'm not much use in terms of running it personally.
Try my ROM and see if data works for you. That's pretty much all I got for you at the moment. But if you did try my ROM and data works, that might be a starting point. Make sure to fully wipe your device prior to flashing.

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