Got a strange issue here. My wife and I have had evos since release and 4g worked fine on both when we got them. We're in Boston and since Boston didn't have official 4g until last week, neither of us have used the 4g radio until we read that boston was flipped on last week. On both evos, we're finding that when we toggle 4g on, it takes the normal ~20 seconds to turn on and then it scans for a second or 2 before turning itself off. After turning off, it turns on again and repeats this on/off routine indefinitely. I am only able to stop the loop by pressing the "4g off" button while the radio is scanning for a few seconds. The radio then turns off and stays off. On my wife's phone, the scanning only happens for a split second so it's almost impossible to stop the loop. Her battery dies in ~4-5 hours because of this.
Both evos are stock 2.2 and both pretty different launcher/app setups. I've tried removing common apps between the phones with no luck. I'm at a loss for what might be causing this. I've searched and found this thread but there is no solution:
http://androidforums.com/evo-4g-support-troubleshooting/158160-4g-failed-connection.html
Next step is to call sprint but that is always a last resort. Any ideas?
that's pretty weird. From what i know this happens when you root and flash roms/kernels. Your mac address gets changed. I'm having the same issue atm, but my evo is rooted.
Either your mac address was changed for some reason, or your rsa keys are gone.
Last-Chance said:
that's pretty weird. From what i know this happens when you root and flash roms/kernels. Your mac address gets changed. I'm having the same issue atm, but my evo is rooted.
Either your mac address was changed for some reason, or your rsa keys are gone.
Click to expand...
Click to collapse
i read about people losing 4g due to rooting issues and keys getting lost. but from what i read, it seems these people are able to turn on their 4g radio without issue but it just scans forever even though they are located within range of a 4g tower. i'm seeing something different here. the 4g radio goes into an on/off loop and barely scans at all.
Not sure I'll be much of a help, but....
Make sure you are outside in a guaranteed coverage area. 4G signal doesn't have the penetration or range of 3G/EV or 1x Voice radios. Confirm that you have 4G signal in that area with someone else who has a 4G capable device.
Then, if that doesn't help, you can go for more extreme methods, such has completely reset one of them back to factory, redo your data profile and test again.
If that doesn't work, you'll probably be stuck with calling Sprint.
If it were me, I'd do the outside and confirm 4G first, then call sprint and see if they can refresh your profile or something before going to the extreme of hard resetting back to factory.
Just because the maps say you have 4G, doesn't mean you do right where you are. There's an app in the market that folks are using to find actual coverage, called Mapviewer by Sensorly. That may help you see where others have reported good signal.
GL!!!!!
thanks for the tips. when i was playing around with 4g back when i first got the evo, i found that i could turn the 4g radio on even when there was no 4g signal and it would just scan for a long time. is this still how it is supposed to work or did they implement some auto-off feature such that the radio turns itself off if it doesn't see a signals after a second or 2? because right now, the 2 evos in my house turn off immediately after turning on and then continue the on/off loop. so it doesn't seem like i can get the evos to behave properly even without 4g signal. i may try calling sprint to try the data reset.
I would give it some time to ramp up - I started in another thread how all of a sudden I'm getting 4G in NJ - and we're not supposed to have it yet at all. I can connect, but it just cycles through connected and diconnected (making it essentially unusable). I would imagine it will begin to normalize after a while.
edit - misread the op, sounds like you're having a different kind of issue. nm
Also, that is how the antenna works - it will keep scanning indefinately until either the battery is dead, or it connects.
hperry said:
i read about people losing 4g due to rooting issues and keys getting lost. but from what i read, it seems these people are able to turn on their 4g radio without issue but it just scans forever even though they are located within range of a 4g tower. i'm seeing something different here. the 4g radio goes into an on/off loop and barely scans at all.
Click to expand...
Click to collapse
nah he's having the same exact issue as me.
Here is the order of what happens:
1. Turning on...
2. Scanning...
3. Authenticating with sprint.. (sometimes you see this, sometimes you dont)
4. Turning off
5. Go back to 1, and repeat
^^ From what he said, that is pretty much exactly what it sounds like. And that's the same problem I'm having with rooted phone.
Last-Chance said:
nah he's having the same exact issue as me.
Here is the order of what happens:
1. Turning on...
2. Scanning...
3. Authenticating with sprint.. (sometimes you see this, sometimes you dont)
4. Turning off
5. Go back to 1, and repeat
^^ From what he said, that is pretty much exactly what it sounds like. And that's the same problem I'm having with rooted phone.
Click to expand...
Click to collapse
that's pretty much it except i've never gotten to the authenticating part since this issue started. also, my phone scans for a few seconds before the 4g turns off. my wife's phone turns off almost instantly after the radio finishes turning on. this is the biggest issue because there is no way to interrupt the loop on her phone. even a reboot with battery pull doesn't stop it.
performed a hard reset on my wife's evo and that fixed it on her phone. mine will be tricker because of customizations. what a PITA.
called sprint and the tech support basically said the 2.2 update has caused lots of problems and they are waiting for "htc and android" to release fixes. so, of course, not sprint's fault at all. she told me just to use 3g and not 4g. pathetic.
did the hard reset on my evo and now the 4g radio won't turn on at all. it just sits on "turning on 4g..." for a few minutes before coming back with "unable to start 4g". i've tried 3 different types of hard resets (buttons, clear storage, and ##786#) and all with the same result. sprint is telling me my phone may be hosed but they won't give me a replacement because a fix is supposed to be released eventually. ugh...
Did anyone find a solution to this problem?
I was in Las Vegas on Friday, and 4G worked fine, but since then my 4G is doing what the OP said. I haven't changed anything in the Rom or Kernel.
Thanks!
Related
A lot of times lately I'm losing my 3g Mobile Network, my signal strength will be a full 4 bars and I still get the issue. Usually if I reboot the phone it will come back. I'm starting to think it gets lost after it connects to WiFi and then when I disconnect WiFi. Anyone having this issue? If so, are there any tricks to getting this to stop?
My phone is completely stock 2.2, no root.
I'm not sure which of these events may have triggered my intermittent lack of 3G connectability but these are the only changes I've made since this started happening:
1) Upgraded to Froyo.
2) Performed the .dun trick to allow 3g Hotspot. (Although I never use it, I tested it a few times but this problem happens without the Hotspot turned on.)
Did you do a factory reset after the froyo update?
Sent from my Incredible using tapatalk.
Nope, I used the SD card method before I got the OTA. Have never done a factory reset.
I have this as well, be it im on a different carrier (Cricket) but it appears in all stock htc froyo builds.
My assumption is that is the radio being used. of how HTC's implementation of Froyo interacts with the radio.
I switched radio's and havent had it occur on me while in the OS yet, and it does occur sometimes on boot still, but if it loads on boot it seems to stay up and stable.
My trick is to turn airplane mode on for about 30 seconds (30 seconds after i see the airplane icon), then turn it off, i assume this reloads the radio, when the brings 3g back.
I can also read my nv settings with qpst and reflash them back to the phone with no changes, which causes the radio to reload as well, and 3g ALWAYS kicks back on.
Also updating the PRL (even if its the same PRL) seems to work as well (assuming this is due to the reboot, which reloaded the radio)
The radio i am using now is:
2.15.00.09.01 - Seems pretty stable, except the occasional one of at boot, which is fixed by airplane on/off.
From what i can gather this nothing to do with custom roms, as many offical Verizon customers on Official NON Rooted 100% completely stock phones have this as well.
Hopefully HTC/Verizon will fix this in a MR update.
token419 said:
My trick is to turn airplane mode on for about 30 seconds (30 seconds after i see the airplane icon), then turn it off, i assume this reloads the radio, when the brings 3g back.
Click to expand...
Click to collapse
I'm gonna try that next time it happens. Easier than rebooting, then it wont bother me too much.
I had that problem once, and never saw it again.
One problem that just happened for a second time today is I cannot send or recieve MMS. HTC had me reboot the phone and call VZW support, of course they yelled at me for not using a task killer -.-
The reset worked, but I'm going to get annoyed if this becomes a regular problem
I have same setup and same issue. As soon as I made the EPST changes for tethering and hotspot, I started having this issue where I'd lose my data connection completely after disconnecting from my wifi when I leave my house. A reboot of the phone fixes it but it's still kind of annoying. It happens I'd say about twice a week.
Hi all, sorry if this has been asked before but some of these threads are thousands of posts deep... I'm using the latest Myn Warm rom, with the stock kernel that's bundled with it (#17 I believe). When I try to turn on 4G, it turns on, scans, tries to connect to Sprint, then turns off and repeats that cycle over and over. It never actually establishes a connection. If I do a hot restart, then it kicks in. Similarly, turning off 4G requires a reboot as well (which I know is a known issue). Anyone else having this issue and is there a fix out there?
Thanks as always
Pontius Pilate said:
Hi all, sorry if this has been asked before but some of these threads are thousands of posts deep... I'm using the latest Myn Warm rom, with the stock kernel that's bundled with it (#17 I believe). When I try to turn on 4G, it turns on, scans, tries to connect to Sprint, then turns off and repeats that cycle over and over. It never actually establishes a connection. If I do a hot restart, then it kicks in. Similarly, turning off 4G requires a reboot as well (which I know is a known issue). Anyone else having this issue and is there a fix out there?
Thanks as always
Click to expand...
Click to collapse
Not sure I've seen anyone have the issue with trying to turn 4g on, but give this a shot if you haven't already, it was buried in that massive thread:
1. Menu-->Settings-->Wireless & Networks
2. Turn 4G OFF--> then ON--> and OFF again, waiting for radio to completely turn off and on each time.
3. Reboot and check your logs (download logger HERE)
Okay, heres my situation. Before I updated, I was running 2.1 stock, never rooted or made any mods. Then, I updated to the TmoUSA Defy 2.2 update (the one that was briefly released), and now I can no longer connect to 3g/ have EXTREMELY bad 3g reception.
Also, I can no longer boot into recovery mode (power button + volume down). When I see the Android figure with the "!", nothing happens when I touch the bottom left of the touch screen? To originally flash the 2.2 update, I simply went in to recovery, and flashed the update.zip. Im doing nothing differently now, and can no longer get into it.
My main issue I am having though, is with 3g reception. Im in the exact same spot of my house, and used to have 4 bars of 3g, and would get about 1.5mbps down, and now, Im forced onto Edge, which obviously is over 10 times slower -_-
Any help would be greatly appreciated!
___________________________________________________________________________________________________________________________
UPDATE:
Okay, this is AWFUL. I did a full reset through the recovery, and cleared the cache. But that did not help at all. On top of that, my issues are worse.
My phone cannot connect to 3g, I went to my school, and there are several cell towers on campus, and I always had full bars of 3G service. And guess what? I didnt get a single bar, just 2g service.
New problems occurred, now the phone gets hot, with no programs running. I tried restarting, but that didn't work. Second, my phone died in about 2-3 hours with little to no use, 1 txt thats all. And it DOESNT CHARGE AT ALL. At first, it took a few hours to charge from 20% to full, and now, I tried charging after school, and its stuck at 0%?
Is there any way to downgrade to 2.1, including the baseband? Should I contact Motorola? I've never rooted it, just installed the official 2.2 update for the US, the one that was briefly released (deeply regretting it now :'( )
Try pressing both volume up and down at the same time when you see the android guy. They changed it from touching lower screen in the upgrade to froyo
Then once in recovery do a restore reset and see if that helps.
Sent from my MB525 using XDA App
Okay, this is AWFUL. I did a full reset through the recovery, and cleared the cache. But that did not help at all. On top of that, my issues are worse.
My phone cannot connect to 3g, I went to my school, and there are several cell towers on campus, and I always had full bars of 3G service. And guess what? I didnt get a single bar, just 2g service.
New problems occurred, now the phone gets hot, with no programs running. I tried restarting, but that didn't work. Second, my phone died in about 2-3 hours with little to no use, 1 txt thats all. And it DOESNT CHARGE AT ALL. At first, it took a few hours to charge from 20% to full, and now, I tried charging after school, and its stuck at 0%?
Is there any way to downgrade to 2.1, including the baseband? Should I contact Motorola? I've never rooted it, just installed the official 2.2 update for the US, the one that was briefly released (deeply regretting it now :'( )
I presume you are indeed on T-Mo US? I'd start by calling their tech support, just get elevated to upper tier. Then give Moto a shot. Have you done an Operator selection search? If you go into the INFO menu -- dialer > *#*#4636#*#* > Phone information, scroll down to Preferred network type, it should say GSM auto (prl) to get 3G reception. If not, try changing it.
Bump? Any help would be great, I just sent an email to Motorola, but probably wont get a reply for a day or two. I can't even use my phone, it dies within 2 hours, doesn't charge, and wont even connect to 3g.....
scrannel said:
I presume you are indeed on T-Mo US? I'd start by calling their tech support, just get elevated to upper tier. Then give Moto a shot. Have you done an Operator selection search? If you go into the INFO menu -- dialer > *#*#4636#*#* > Phone information, scroll down to Preferred network type, it should say GSM auto (prl) to get 3G reception. If not, try changing it.
Click to expand...
Click to collapse
Thanks! I'll try that as soon as I can turn on my phone :'( Seriously though, thanks a lot. I am going to try that as soon as possible, but as of now, its been "charging" for 4 hours now, and it still just shows the picture of the battery @ 0%, and wont boot. I honestly have no idea, I tried a few different micro USB chargers, with no luck. When I used my Galaxy S charger, it showed a "?" instead of a %", as if it was not even recognizing the battery.
I assume you have tried the charger that came with the phone and have also tried it connected to USB on a computer?
Have you tried reformatting the SD card (or tried another) -- that may affect boot. And/or have you tried booting w/o SIM? I know you updated, but it could be a coincidental battery failure.
scrannel said:
I assume you have tried the charger that came with the phone and have also tried it connected to USB on a computer?
Have you tried reformatting the SD card (or tried another) -- that may affect boot. And/or have you tried booting w/o SIM? I know you updated, but it could be a coincidental battery failure.
Click to expand...
Click to collapse
Yes, that could be. But then again, it hasn't connected once to 3g after the update? I'm going to guess I have a battery failure, I kinda had a feeling that it might be that. It was so sudden though, I got great battery life, that lasted at least a full day to 2 days. And then after the update, it would hardly last 2 hours. The phone was also constantly warmer than usual, but I didn't have anything running. Im just going to hope that it was coincidental, and that right after I updated it, my battery died, and I didn't have it on GSM Auto (prl).
Welcome to my world...... I finally got to the point where I could only get Edge... Phone got replaced under warranty.
Hi,
Wondering if anyone is experiencing this issue.
Got the uk version of galaxy nexus, GT-I9250 ordered from an online store from the us. Only within the first 24 hours I experienced a time where I suddenly lost my 3g.. the signal bar shows no service. Only way to get back is to reboot phone.
After it happened few times and doing some testing, it turns out the radio just shuts down. Going to settings, about then status shows radio off. Going to the secret menu that gets accessed by typing a nmber also says radio is off. There is a button to turn radio on.. but it does nothing.
Tried factory reset, .didn't install any apps. Still issue occurred. Also noticed at random time before the total radio sshutdown, I do lose 3g few a minute then comes back.
See my screen captures showing issue attached.
The preferred network type when the radio works is shown as GSM/CDMA auto. During issue its unknown as shown in capture. Changing from unknown to gsm/cdma auto after failure does nothing.
Of course ttried to turm 3g on/off.... airplane mode on/off.. nothing works except a reboot.
I am on Kk1 radio. I didn't try kk6 as i didn't want to touch the phone in anyway to void warranty. my buddy has same phone but doesn't experience iissue. Same phone, same carrier, same city.
Any thoughts?
Maybe exchange it for a new one? My only advice
Sent from my DROID BIONIC using XDA App on UNL3ASH3D R3BLURR3D V2.3 and will continue to be sent from here until I buy the Galaxy Nexus 32GB
Have you tried running logcat to see if there are any logs to suggest whats crashing your radio?
Mine done exactly the same as yours and I am with Orange UK who stated I have a faulty sim card and are sending one out in the post to me so hopefully if that resolves mine you can also ask for a replacement sim card as well.
P.S I found that speediest.net knocks wireless/radio off sometimes and also wireless on mine can totally freeze as well so hoping this will be fixed asap by google.
I have same issue - loosing signal completely just with no reason very often. Turn phone off/on - works fine. I have brand new sim card and phone from Handtec, Vodafone UK.
Ditto for me as well. Purchased from Expansys, second round. It will move between 3G and H then shut off. Happened once so far. I'm using a MicroSIM with an adapter, both worked fine and are new.
I'll be watching this very closely. Someone with a Google account can post this to bring it to their attention?
Happened a second time but came back on. Attached a screen shot.
It does happen where the signal is lost, then comes back. That could happen few times before it goes down and then never comes back up at all. I used a program called signal alert to tell me when. It happens. I found that during the day signal is fully lost a number of times but it comes backafter less than a minute. at some point its lost and doesn't come back and only reboot fixes.
Bmstrong, the capture u showed me shows you lost data, but it seems you still have voice. Look at the screen I posted, u can see no bars what so ever in my signal meter.
When the issue occurs, its random, so by the time I find out and i ran alogcat, I would have missed it. Alogcat only shows me few minutrs before. However, I kept looking at alogcat after the fact and there was nothing that i could see that explains this.
I did try another sim while the trouble is occurring and no use.
I have requested rma from where I bought it and just waiting for authorization. Will share my experience with it and the store after.
Thanks,
Bmstrong, go to settings and about, then status to see if it says radio off. If it doesn't then it either your really lost 3g..maybe coverage or a different issue. In my case radio says its off and never comes back.
sorry to post a little off topic. but how do you see the first screen in the OP's post?
I'm getting this issue too, does anyone have any more information or has resolved this?
When going into the phone info screen does pressing "turn on radio" work for anyone? I have to do a reboot before I get signal back.
similar thread: http://forum.xda-developers.com/showthread.php?t=1387943
Luxferro, type *#*#info#*#* in your dialer.
I am on my second International HTC one X and both devices would lose the carrier signal quit often... I would either go to airplane mode, or turn the network off and on and it would grab it again. Sometimes it would be good for the day and other times, I would have to do it a few times....
I wanted to think it was my carrier having issues (MTS in Winnipeg MB Canada)... however, this has never happened on my many other devices. Now I wake up today and turn on the mobile data, after awhile... it does not connect, under settings it says disconnected because service is unavailable. I tried reboots, restart, airplane mode, checking apn settings.... on my last reboot, it says No signal/emergency calls only.
So now I am fearing a hardware issue (but I find it odd it happens on both my one xs).
I love this device and aside from this potentially huge issue.... I have no complaints, so I will ask here and see if you guys have any solid input.. before I contact htc!
I also popped my sim in and out, as of right now...
Thx in advance.
**update: it almost seems like putting wifi on, knocks out my carrier signal.... after an hour of doing the above things, I turned off wifi, went to airplane mode and now my signal and data is there (it makes no sense) and it is quite a hassle
The weirder part is, it seems to only be in the morning.... once I am up and running, I do not seem to have many issues through out the day, but If I put wifi on long enough... It goes to no signal/eventually....
If I do not put on wifi, it either does not drop.... or I am not noticing.
I've just begun having network problems but I'm not sure it's related to your situation. I'm in Australia on the Optus network.
It happened suddenly yesterday. Service completely cuts out for extended periods. It will occasionally come back on for a short while (long enough to download all my sms) but will then cut out again. When the signal does briefly come back in, the signal strength is decent: it's an all-or-nothing proposition.
Did you manage to resolve your situation? Would be interested to know what resolved it for you.
I've had this phone since early April when it was released here and the is the first issue I've had with it. I haven't done anything new to my phone in the past week so I'm finding this strange. I'm running Leedroid 4.0.0 but I've had that installed for weeks without issue. I'm worried it could be a hardware issue.
I'm going to try reflashing it tonight to see if it's a software issue.