I rooted my G2 about 2 weeks ago with Virtuous ROM and, the other day I picked the phone up to go to work not thinking anything was wrong.
When I got to work, I had an X where the signal bars are. Tried to turning phone off and, nothing.
When I go in and search for the carriers it shows T-Mobile and AT&T listed then I tap the T-Mobile section and it tells me "Your SIM Card doesn't allow connection to this Network"....So we called T-Mobile and switched SIM Cards and still get the same thing.
My SIM works in every other phone we have, including our myTouch4g...I have un-rooted and, same result. Then rooted again and, it still acts the same way..
T-Mobile said it was something with their network and, could take 3 days to get it straightened out.
Has anyone else had this kind of problem out of there G2 before or after rooting?
I'm in Tennessee, if that helps.
Well, I went totally back to stock and, still no reception. Just an X in the signal location.
Send phone in for warranty if you have it...and try to enable raoming and data raoming and see if you can pick up any signal...
ilostchild said:
Send phone in for warranty if you have it...and try to enable raoming and data raoming and see if you can pick up any signal...
Click to expand...
Click to collapse
Thanks. I tried that and, still no signal. My DBM is -109 when I checked it a few minutes ago through the my device app.
Checked it again and it says -89, signal strength of 14 but, still have an x on the signal bars.
This is crazy. You don't think the Virtuous ROM messed it up do you?
I got a solution from T-Mobile. They are sending me a new one.....YIPPIE
I am on att wireless
I have noticed that in a low service area i get none at all.
However my wife on her iphone has 1/2 bars and my bro on his atrix also has 1/2 bars.
Anyone else having similar issues?
12/7 Update - More information on what I have attempted
Setting APNS for 4g on ATT
getting correct 4g data plan on account
New Sim cards
Replacement Galaxy Nexus
Different Roms
Stock Restore Rom
restore to default and install nothing
different radio
update to 4.0.1
Once the signal drops to almost unusable levels , the only way to get it back is either reboot the phone or toggle airplane mode. After that the signal returns to a solid 89-93 DBM. After roughly 30-60min it will then drop and I have to toggle it again. All other phones in my location have no problem including my iphone 4s with the exact same sim card.
I am in a decent location for signal. On the nexus reboot its at -89 dbm , my iphone 4s is at -87. The iphone stays that way and the galaxy nexus over time drops to -105 to -111.
Still no conclusion.
I only have problem with Wi-Fi where the reception is considerably weaker than any other device just around it.
aimetti said:
I am on att wireless
I have noticed that in a low service area i get none at all.
However my wife on her iphone has 1/2 bars and my bro on his atrix also has 1/2 bars.
Anyone else having similar issues?
Click to expand...
Click to collapse
Bars mean very little, as devices have their indicators calibrated differently. You should be comparing signals, in dBm for a meaningful comparison.
The acid test, of course, is whether you can make and hold a call, and or send/receive data.
aimetti said:
I am on att wireless
I have noticed that in a low service area i get none at all.
However my wife on her iphone has 1/2 bars and my bro on his atrix also has 1/2 bars.
Anyone else having similar issues?
Click to expand...
Click to collapse
Yeah kind of hard to gauge from bars. Nokia and motorola are known for excellent reception. Samsung not so much. They do seem to be improving on all fronts though, including wifi and gps.
Sent from my samsung gt i9250 which is in the wrong country.
I havent got too in depth with testing but its simple to see there is an issue. Everyone around me can make calls and i cant. Cell standbye taking up battery life as well and has been out of signal for a while
I'm seeing a similar issue.
When I have 2g only selected, I get 2 bars -98 asu 7. When I have it deselected I have no bars and signal is -111 asu 1.
Well ive had similar issues
Today I wiped phone and came back to initially 4/5 bars and download speeds of 4 down 1 up.
Then after about 10 min , right back down to 1/0 bars and 800 kbps down 200 up.
popped off back cover and then pulled sim , reset sim and then reboot. Again it initially came back with 4/5 bars with hsdpa. Again about 10 min later back down to 1/0 bars and a -113 dbm reading,
Then oddly enough i was in the status screen just watching it hover around -113 to -105 , it clicked to edge full 5 bars , then came back to 3G 4 bars and now at -93 dbm.
Does this sound at all normal? I havent changed location more than a few feet through all this. My wifes Iphone seems to be having 0 issues right next to me.
just watched it do it again.
Was at 1 bar went to 0 , got stuck on -113 dbm for about a minute or 2 clicked over to edge-2 -87 dbm then back to hsdpa -93 dbm
:/ i got no clue at this point
there is a video showing some of the issue
http://youtu.be/dbSAEHVcosI
aimetti said:
just watched it do it again.
Was at 1 bar went to 0 , got stuck on -113 dbm for about a minute or 2 clicked over to edge-2 -87 dbm then back to hsdpa -93 dbm
:/ i got no clue at this point
there is a video showing some of the issue
http://youtu.be/dbSAEHVcosI
Click to expand...
Click to collapse
Is this at home or a place where you frequently are? If so, I would do one of two things (provided you want to keep the device):
Write an NFC tag that you can tap on your way in (and presumably on on the way out as well) that would switch you over to "2G only" (which it seems gives you a better signal), and back to 3G/3.5G on your way out the door. or...
Either write yourself, or wait for one to be written, a kernel that will throw more power to the radio (at the expense of battery life however- but if you are constantly searching for signal your phone is probably wasting a ton of battery right now anyways)...
ya i am at home.
My wife consistently gets 3 down 1 up on her 4s.
No one else seems to be having issues , perhaps mine is just defective?
this is what happens when i lightly grip phone
http://youtu.be/-eqlMUoeq_I
aimetti said:
ya i am at home.
My wife consistently gets 3 down 1 up on her 4s.
No one else seems to be having issues , perhaps mine is just defective?
Click to expand...
Click to collapse
Maybe, but I can't think of a way to reliably test whether it is defective or not. My Samsung phones have always had lightly weaker radios than my HTC and Moto phones, and my sister's iPhone, so I will wager that it is just that in the name of battery life the radio is under-powered, which can be changed in the kernel. I was in a similar boat back when I was on T-mobile (right on the edge of service), and luckily someone had posted a custom ROM for the G1 that routed more power to the radios, and gave me just enough to hold a signal and use my wifi for data. Whatever that kernel in that ROM did, it gave me about 10 dbm difference. You might want to throw a request in the development section.
you can also try exchanging the device (if ever unhappy at all you should try to), but I am wondering if it will actually make a difference. Do you know someone with a recent Samsung phone like a SG2 (not LTE/Skyrocket) or maybe one of their Windows phones (I don't know what radios/speeds they use), to see if it gives similar results?
s.m.knipe said:
Maybe, but I can't think of a way to reliably test whether it is defective or not. My Samsung phones have always had lightly weaker radios than my HTC and Moto phones, and my sister's iPhone, so I will wager that it is just that in the name of battery life the radio is under-powered, which can be changed in the kernel. I was in a similar boat back when I was on T-mobile (right on the edge of service), and luckily someone had posted a custom ROM for the G1 that routed more power to the radios, and gave me just enough to hold a signal and use my wifi for data. Whatever that kernel in that ROM did, it gave me about 10 dbm difference. You might want to throw a request in the development section.
you can also try exchanging the device (if ever unhappy at all you should try to), but I am wondering if it will actually make a difference. Do you know someone with a recent Samsung phone like a SG2 (not LTE/Skyrocket) or maybe one of their Windows phones (I don't know what radios/speeds they use), to see if it gives similar results?
Click to expand...
Click to collapse
Ya , i was at my brothers house yesterday with no service at all.
My bro had an atrix with 1/2 bars and service.
my wife had an iphone 4 with 1/2 bars and service
and my sister in law had a galaxy s2 with 1/2 bars and service as well.
I had 0 at all.
The odd thing is , every time I reboot my phone it holds on to 4/5 bars at the location im at right now for a good 10 minutes , then flatlines.
aimetti said:
Ya , i was at my brothers house yesterday with no service at all.
My bro had an atrix with 1/2 bars and service.
my wife had an iphone 4 with 1/2 bars and service
and my sister in law had a galaxy s2 with 1/2 bars and service as well.
I had 0 at all.
The odd thing is , every time I reboot my phone it holds on to 4/5 bars at the location im at right now for a good 10 minutes , then flatlines.
Click to expand...
Click to collapse
what APN are you using? Use the same APN settings as your Sis-in-law's GS2- when my Nexus first came I noticed the APN did not match my Atrix and it would not hold an HSPA+ signal for long; I changed it to match the Atrix and speeds/holding towers has been much better. Try the APN thing.
The GN and GS2 would have the same radio chip (I would imagine), and be set to draw the same amount of power by the kernel. If the APN thing doesn't work then you might want to consider an exchange I guess, maybe it is defective
The fact that it flatlines AFTER 10 minutes (presumably after all the syncing is finished for the various apps and services) is suggestive of a sort of "demand" model- like maybe the device amps up the radio when it knows there will be a lot of need, then scales back when demand is less- or over compensates at first, then under compensates later after some sort of calibration? The ten minute thing sounds odd, but sounds like something software/firmware/kernel-based...
[Keep in mind that there is much speculation contained in that advice, the true test for defective or not would simply be another GN at the same location- as that is unreasonable we'll have to speculate. Also, if your sis-in-law comes back over, check her phone status for her signal strength (not bars but dbm and asu) and see if it matches yours. The bars that you see are a software representation of those two numbers, and can be modified to under represent the actual signal.]
I am using the default cingular 410 apn
ive been reading that if support put a 4g data plan on my phone that it could potentially cause data loss. Is that correct?
also changed to 2g only for now and have 5bars -81 dbm constant.
aimetti said:
I am using the default cingular 410 apn
ive been reading that if support put a 4g data plan on my phone that it could potentially cause data loss. Is that correct?
also changed to 2g only for now and have 5bars -81 dbm constant.
Click to expand...
Click to collapse
Not sure I follow, if AT&T made your data plan a 4G data plan, it would interrupt your service?
I think you are asking if changing these APN settings will trigger something at AT&T, and they will "bump" you to a 4G plan- in which case I don't really know, I had to jump onto a "4G" plan when I got my Atrix. I think it would never reach that point though, when you set up the new APNs, that step where you touch the dot to select the HSDPA APN, it would default back to your cingular 410 apn if it were not able to connect (via SIM provisioning or whatever). If unavailable it wouldn't be connected at that rate to begin with.
How old is the data plan you are on (is it prior to the tiered plans)? If you are worried about the connection (APN) not matching the SIM, you could request a new (4G) SIM. Maybe stop in your local store, or call customer service and tell them you are thinking about buying a 4G phone, your friend's brother's uncle' pizza delivery boy's nephew has an unlocked phone you could test speeds with, could they switch out your old SIM for a newer 4G one to see if it will be worth your while at your house, then just pop in that new SIM, change the APN and away you go? (Or to be even less complicated take your old phone in with your old SIM, and just ask for a new SIM card, that yours isn't working right, and it should be a new 4G (not LTE) card...
Well, at least the phone is usable on the 2G band for you, and will save a lot of battery. Meanwhile we'll try to get you connected to an HSPA+ tower.
s.m.knipe said:
Not sure I follow, if AT&T made your data plan a 4G data plan, it would interrupt your service?
I think you are asking if changing these APN settings will trigger something at AT&T, and they will "bump" you to a 4G plan- in which case I don't really know, I had to jump onto a "4G" plan when I got my Atrix. I think it would never reach that point though, when you set up the new APNs, that step where you touch the dot to select the HSDPA APN, it would default back to your cingular 410 apn if it were not able to connect (via SIM provisioning or whatever). If unavailable it wouldn't be connected at that rate to begin with.
How old is the data plan you are on (is it prior to the tiered plans)? If you are worried about the connection (APN) not matching the SIM, you could request a new (4G) SIM. Maybe stop in your local store, or call customer service and tell them you are thinking about buying a 4G phone, your friend's brother's uncle' pizza delivery boy's nephew has an unlocked phone you could test speeds with, could they switch out your old SIM for a newer 4G one to see if it will be worth your while at your house, then just pop in that new SIM, change the APN and away you go? (Or to be even less complicated take your old phone in with your old SIM, and just ask for a new SIM card, that yours isn't working right, and it should be a new 4G (not LTE) card...
Well, at least the phone is usable on the 2G band for you, and will save a lot of battery. Meanwhile we'll try to get you connected to an HSPA+ tower.
Click to expand...
Click to collapse
thanks for all the help really appreciate it.
Anyways a few things have happened since I last posted.
I had an iphone for the last 3 years. I went into ATT last week and got a normal 4g sim card in advance. Today I called my buddy who is a manager at a corporate store and he checked my account. Found that the lady had the wrong data on it. He ended up setting the sim to the 4g plan etc (which is unlimited)
I was able to add the ATT HSDPA apn and successfully connected to it. Prior to this I actually installed modaco's rom and restored everything.
At this point I am getting consistently 3 bars in my house (which is more than my wifes iphone 4s) on 4g.
Seems to be working much better now. The only other issue that remains is when I turn on WIFI. If i turn it on the cell reception goes to 1 bar or sometimes 0. I dont have the exact dbm values right now unfortunately. Calls and text still seem to go through however. Is it possible the wifi is drawing power designated for the radio?
Thanks again !
aimetti said:
thanks for all the help really appreciate it.
Anyways a few things have happened since I last posted.
I had an iphone for the last 3 years. I went into ATT last week and got a normal 4g sim card in advance. Today I called my buddy who is a manager at a corporate store and he checked my account. Found that the lady had the wrong data on it. He ended up setting the sim to the 4g plan etc (which is unlimited)
I was able to add the ATT HSDPA apn and successfully connected to it. Prior to this I actually installed modaco's rom and restored everything.
At this point I am getting consistently 3 bars in my house (which is more than my wifes iphone 4s) on 4g.
Seems to be working much better now. The only other issue that remains is when I turn on WIFI. If i turn it on the cell reception goes to 1 bar or sometimes 0. I dont have the exact dbm values right now unfortunately. Calls and text still seem to go through however. Is it possible the wifi is drawing power designated for the radio?
Thanks again !
Click to expand...
Click to collapse
Awesome, glad it worked out.
And possibly yes, depending on how the kernel relegates power wifi could "commandeer" a little from the cell radio, and reduce the dbm just enough to reflect in the "bars" algorithm.
perhaps a new radio will eventually come out that I can test.
either way seems to be at least in service now , signal definitely drops when i hold the phone but as long as I can make calls it should be fine.
aimetti said:
perhaps a new radio will eventually come out that I can test.
either way seems to be at least in service now , signal definitely drops when i hold the phone but as long as I can make calls it should be fine.
Click to expand...
Click to collapse
in the meantime i'll suggest using the open signal widget https://market.android.com/details?id=com.staircase3.opensignal&hl=en
which will tell you the real reception in the phone, and see what you are getting behind those bars
don't expect to make a good call when the signal drops to -90 dbm and above
and if you have multiple phones like i do, then you can compare if other phone in the same spot, connected to the same tower, is having higher or lower dbm than SGN
for example my Nexus S had worse reception than my Milestone XT720.... go figure
AllGamer said:
in the meantime i'll suggest using the open signal widget https://market.android.com/details?id=com.staircase3.opensignal&hl=en
which will tell you the real reception in the phone, and see what you are getting behind those bars
don't expect to make a good call when the signal drops to -90 dbm and above
and if you have multiple phones like i do, then you can compare if other phone in the same spot, connected to the same tower, is having higher or lower dbm than SGN
for example my Nexus S had worse reception than my Milestone XT720.... go figure
Click to expand...
Click to collapse
Thanks I will try it out,
Overall i dont think the issue is fixed at all now. Went to bad and signal dropped all the way again. Stuck at -111 dbm. I held the phone i saw it switch to edge 5 bars and then click over to H 4 bars.
I really believe its some kind of software thing. If I cycle airplane mode on / off I get 4 bars (unknown dbm but its working) of 4g service. I know the service is here and working as my wifes iphone is fine but something is causing it to not hold the signal and eventually drop and not recover.
Makes no sense
Downloaded the app ,
Was at 42% signal strengh, I noticed when I picked up phone and lightly held it , it dropped right on down to 5% and got stuck there. This wasnt death gripping it either , barely holding it. Does anyone else have this issue or is it just mine? I know all cell phones have this issue but this seems excessive , worse than my iphone 4 ever was. I then cycled airplane mode again and signal strength went right up to 65% again -89 dbm
My Verizon Galaxy Nexus isn't picking up any cell service. I updated to CM10.1 (Android 4.2.2) mid-February and noticed my phone was showing no bars of service more often then with CM10. Even with no bars I still had "some" service and was able to make calls usually. Last week I updated the radios on both my Dad's and I's GNs to the 4.2.2 radios. For my phone I used the radio files from MWalt's thread, for my Dad's I used the ones directly from Mark Manning's radio thread. I didn't realize they were different versions and that MWalt's may have been patched.
I came back to my parents house this weekend, they have a network extender. My phone again was showing no bars but did have the little "R" indicating a Network Extender. Having little (to no) service even with the network extender was causing my phone to die very quickly. Today I was doing some errands (to places where I should have service), for the first 10 minutes of driving I had no bars but did have the 3G indicator and was able to make calls. Once I got to a certain point my service cutout completely. For the the next 4 hours I had zero service and couldn't make any calls (again in areas where I should have had varying amounts of service). Driving back once I got to the same spot where I lost service, no bars of 3G service returned and I was able to make calls. When I reached home, I again had no bars but was able to make calls.
I just backup my entire SD card and did a complete factory install using Google's 4.2.2 factory images (with the flash-all.bat). Still no improvement, I'm getting 0 bars of service standing next to the network extender. My Dad's GN (as well as the rest of my family's phones) are getting 2-4 bars of service depending on where they are in the house.
Any ideas?
Thanks
TL;DR: I wiped my phone by installing Google's factory images (4.2.2) and my phone is getting no bars of service (although I can *sometimes* make calls standing next to a network extender ("cell tower") or in areas where I should have good service). Any ideas? Thank you...
You might have flashed a Toroplus or Maguro ROM. Im not sure what to tell you other then to call Verizon and check if its a location problem and if its not try manually flashing the stock cdma radio from the google images. (Extract and install both "radio-cdma-toro-i515.fk01.img" and "radio-toro-i515.fk02.img" just in case).
If that doesnt work then try flashing the 2 radios from the 4.1.1 stock image.
I'm sure I flashed the correct toro images, and after posting this I also tried flashing the entire 4.1.1 factory images. Still no improvement. Tomorrow I'll be going back to NJ (from VT), I'm hoping to see some improvement down there.
Thanks for the reply. Any other suggestions would still be appreciated.
I just went down to the Verizon store (back in NJ) after seeing no improvement when I got back to my house. Of course on the 5 minute drive between here and there I get full (4 or 5?) bars of 4G service. And by the time I got to the store I still had 2-3 bars of 4G service. Anyway, the guy at least believed me enough to give me a new sim card. But once I drove back up the hill from the store I lost 4G service in the exact same spot again.
Keeping in mind this is in the Cliffside Park/Edgewater area of NJ (literally right across the Hudson river from NYC). I *should* have great service in this entire area. I don't know what to do, except pay the $100 for a POS refurbished phone form Asurion or maybe pay full price for a S4.
I called Verizon CS and they were able to confirm not being able to see my phone connected to their network. After 40 minutes they actually (read:finally) offered to replace the phone. Should be here in a couple days. Now this phone has to be a refurbished one correct? Any chance they are sending out new ones? I read some stories earlier about people being on their 3rd or 4th replaced GNs because of constant problems with the replacements.
Edit: Just got the confirmation email for my "certified like-new replacement" phone. Oh well, we'll see how this turns out... Until then I'm back on my Droid Incredible. Damn this phone is tiny and slow as s***.
Hi folks,
I jinxed myself. Yesterday I crowed over successfully replacing my M919 S4 wifi antenna, gaining better wifi performance by about one wifi bar around my house. (The thread is here, if anyone is interested) Basically I just felt my wifi reception was weak enough to suggest a problem, and I wanted better wifi coverage when not right next to a wifi router, so I popped for a few bucks to try a replacement antenna. It seemed to do the trick.
I didn't notice until I left home this morning that swapping the wifi antenna killed my cellular connection. No bars, and "No Service" was listed. Huh. At work, with no tools, I did the usual stuff. Remove/replace SIM, pull battery, no joy. At lunch I went and got a screwdriver. Disassembled / reassembled the unit (took off screws and frame, made sure no bent contacts) etc.. No joy. Went to nearby ATT store for new SIM, no joy.
Came home, and on a lark took out the new wifi antenna and put the old one back in. Rebooted, and all was back to normal. Fine cellular service right away, and back to the previously somewhat weak wifi reception.
I don't understand what could cause this series of events. To be clear, here's the part I used:
http://www.esquareparts.com/product/samsung-galaxy-s4-l720-r970-m919-wifi-antenna-flex-cable/
Is the WIFI antenna also part of the cellular system antenna, and is there a failure/defect mode that would explain why this replacement part would kill cellular service while working fine for WIFI?
I'm very confused. I want to get back to stronger wifi reception, WITHOUT killing my cellular...
Help!
Dude your over thinking it, had a feeling you where chasing a ghost but just waited for you to confirm it. Go to your nearest T-Mobile store and let then do there testing diagnostics and get it directly from the horses mouth. Yes, your phone is defective or no, your crazy. Or find someone with exact phone and compare signals.
Pp.
PanchoPlanet said:
Dude your over thinking it, had a feeling you where chasing a ghost but just waited for you to confirm it. Go to your nearest T-Mobile store and let then do there testing diagnostics and get it directly from the horses mouth. Yes, your phone is defective or no, your crazy. Or find someone with exact phone and compare signals.
Pp.
Click to expand...
Click to collapse
I've been known to overthink things. Kind of my calling-card!
But this wifi thing isn't a ghost at all. Any other wifi device I've used in the last several years has had better wifi reception than this particular S4, including an ATT S4 I used for a couple months last year. And it's not just the "reported wifi bars" (which can vary by ROM)... the thing actually frequently disconnects from wifi when I head down to the basement. And in other wifi locations around town, it's reporting much lower. The replacement wifi antenna fixed that and brought it much closer to normal, no more disconnections. Except, of course, for my cellular connection.
If anyone can help explain why the new wifi antenna would completely kill the cell radio functionality (reversibly, thank gosh!), please pipe in. This is a stumper, for me...
And I don't think the T-mo store would do much for me. I'm using the phone on ATT, and I bought it through Swappa, so T-mo doesn't even have me in their system.
Marc