[Q] Verizon Samsung Fascinate NO 3G Icon keeps disappearing - Fascinate Q&A, Help & Troubleshooting

I am hoping someone can help me with this problem I have read a lot of threads but none of them have any real solution.
My Verizon Samsung Fascinate 3G icon keeps disappearing and after 5-10 minutes comes back for maybe 1-2 minutes before it disappears again. it keeps doing this all day.
I have done these to see if it make any difference but no luck same thing happens.
1. I have pull out the battery for a while and put it back ( Noting Change )
2. I have restore back to stock roms ( Noting Change )
3. I have updated the radio and modem ( Noting Change )
4. I have called *228 and updated the PRL ( Noting Change )
If someone can please help me with this I really would amazing
Thanks
Again my 3G icon comes and goes every few minutes. when the 3G icon is gone my phone shows that is trying to connect to network (network mobile state: connecting)

jamesstern said:
I am hoping someone can help me with this problem I have read a lot of threads but none of them have any real solution.
My Verizon Samsung Fascinate 3G icon keeps disappearing and after 5-10 minutes comes back for maybe 1-2 minutes before it disappears again. it keeps doing this all day.
I have done these to see if it make any difference but no luck same thing happens.
1. I have pull out the battery for a while and put it back ( Noting Change )
2. I have restore back to stock roms ( Noting Change )
3. I have updated the radio and modem ( Noting Change )
4. I have called *228 and updated the PRL ( Noting Change )
If someone can please help me with this I really would amazing
Thanks
Again my 3G icon comes and goes every few minutes. when the 3G icon is gone my phone shows that is trying to connect to network (network mobile state: connecting)
Click to expand...
Click to collapse
has your phone been activated and used to make any calls?
when you say "restore back to stock roms" you're talking about version 2.3.5 with EH03 radio correct?
which custom ROM were/are you trying to run?
.

Thanks for the quick reply.
Yes my phone have been activated and was working fine till last week. I can still make calls anytime with no problems.
Yes I have restore back to and tried EH03, ED05 and EC09 and none of them fixes the 3G problem.
I was using geewiz-2.9.2 rom for the past year and had no problems but all of the sudden this happened
hhp_211 said:
has your phone been activated and used to make any calls?
when you say "restore back to stock roms" you're talking about version 2.3.5 with EH03 radio correct?
which custom ROM were/are you trying to run?
.
Click to expand...
Click to collapse

jamesstern said:
Thanks for the quick reply.
Yes my phone have been activated and was working fine till last week. I can still make calls anytime with no problems.
Yes I have restore back to and tried EH03, ED05 and EC09 and none of them fixes the 3G problem.
I was using geewiz-2.9.2 rom for the past year and had no problems but all of the sudden this happened
Click to expand...
Click to collapse
well at this point I don't know what else to say geewiz or stock should not have the issues you describe, could just be Verizon issue with signal in your area,,, I have seen mine struggle at different times of the year for no apparent reason at all...
EH03 should give the best reception but I remember running the others at different times too but not in the last year+
check this site and see if they report issues in your area
http://downdetector.com/status/verizon-wireless/map/
.

hhp_211 said:
well at this point I don't know what else to say geewiz or stock should not have the issues you describe, could just be Verizon issue with signal in your area,,, I have seen mine struggle at different times of the year for no apparent reason at all...
EH03 should give the best reception but I remember running the others at different times too but not in the last year+
check this site and see if they report issues in your area
http://downdetector.com/status/verizon-wireless/map/
.
Click to expand...
Click to collapse
Thank you for your help, but it is defiantly not because of the area I am in. My wife Verizon Samsung Fascinate that works with no problem. But mine one minute is connected and the next is trying to connect

jamesstern said:
Thank you for your help, but it is defiantly not because of the area I am in. My wife Verizon Samsung Fascinate that works with no problem. But mine one minute is connected and the next is trying to connect
Click to expand...
Click to collapse
maybe the antenna connection has wiggled loose or has some corrosion,
these are not that hard to pop apart to inspect it out...
here are two guides if you need some encouragement / reinforcement!
Samsung i9000 Disassembly.doc
http://www.androidfilehost.com/?fid=23578570567714346
Samsung GT-i9000 Assembly - Disassembly.pdf
http://www.androidfilehost.com/?fid=23610159112651681
.

Related

3G Randomly Disappearing after Froyo

This is really killing me, someone please help lol heres how it goes
On boot, takes a good bit for the 3G icon to appear, eventually Phone has 3G icon gray with arrows then switches to D [still gray], i click something like a browser or Slack Radio it goes to connect and if its fast enough it does [icon changes to RED/GREEN arrows] but usually its a gray D, then the icon disappears completely. After about 60 seconds or so the icon reappears and I can continuing surfing the net/listen to music..etc. Then after about a song or 2 this happens all over again. Im in place with good reception and i just dont know what could be going on here. I tried pulling battery, doing the *228 option 2...anyone know how i can fix this
just tried hard reset, no dice
A nice excuse to call verizon and get a replacement device (most likely for free).
I've called them, they try and shoot me over to Samsung, samsung trying to tell me to get a hold of my 3G service provider...verizon did tell me i was due to upgrade, but i love this phone (when 3G worked) i just dont understand what froyo did, when im downloading stuff it works fine, but as soon as I stop and try to access something use 3G i have to wait for the 3G to "reboot" so to speak cuz thats when it disappears for minute, then comes back for me to use...but with streaming music you can see how this is an issue
I was having this same problem when they were pushing the EA28 update a couple of weeks ago which never successfully updated to my device I might add. I went into the Verizon store and after the rep spent about 10min on the phone with whoever.... Told me they were sending me a new phone. Received new phone with the EA28 update already installed 3G and all data worked GREAT! Attempted the Froyo update 6 times yesterday all unsuccessful and now the new phone I have is having the exact same problems with data connection. Comments and ideas would be appreciated. But ya better believe I'm goin into Verizon if the update attempt I'm doing now doesnt work.
I'd get another replacement from verizon tbh. If then it still doesn't resolve your issues ask to speak with a manager and tell him your situation. They might hook you up with a free upgrade.
Im going to go down to the store so I can get a face to face and show them whats happening. I mean i just wanted to make sure this wasnt some new thing on Froyo that im not understanding. I see it goes "D" [dormant] but it shouldnt disappear and take a minute to start up and let me use it right...thats poppycock!
Are you using "juice defender" by any chance?
Sent from my SCH-I500 using XDA App
You're lucky that yours just takes a minute to re-establish the connection, mine will just keep giving me network errors and telling me to check network access ect., depending on what app/service I am trying to connect. Exactly the same things that happened when the EA28 updates kept failing on my last phone only 2weeks ago. Also the Froyo update that says will take 15min to download takes over an hour even though my 3g stays on constantly when downloading from Verizon.
Terror_1 said:
Are you using "juice defender" by any chance?
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
Had it installed [but not in use] when I updated to Froyo, but I just did a hard reset and am still getting issues...
...my Froyo update came in in about a 1/2 hour or so, no drop issues ever when I was on 2.1, my 3G icon stayed in the status bar even when I was out of service range [it would go in to 1X] but on froyo its just disappearing no matter where i am]
This crap has happened ever since the first "froyo" modem leak for me (but not like I could call vzw and complain though until now) and had to resort to using the DL09 modem to increase my usage reliability by a small percentage. This crappy service only seems to affect people in certain regions, you all see where I live (look to the left) and you guys should update your profiles to reflect at least a region. I odin'd all the way to stock and did the ota's to froyo and ran stock froyo for 2 days with the same old ****ty results. I did get a replacement (in february) and still got the same exact dBm signal levels and data speeds at home that I had with the other device. But the voice mails with no missed calls and bulk texts and data lockups are really getting on my ****in' nerves. I'm so glad they finally did the ota cause I can guarantee that the issue will be wide spread in various regions. I spend all day driving around in a work truck with a coworker that has an epic (sprint) and he has absolute perfection in his service everywhere throughout the city. At the end of a 10 hour day I will have rebooted twice and have tws at 47% coworkers tws will be at 1% and he pays $35 less for unlimited everything, which is a kick in head too. Pondering etf to maintain my sanity and not be worried that my 70 year old mother is trying to call me with an emergency and having my **** go to voicemail. Now on to customer service to build a case. Ugh, pissed off rant over.
*edit* I use no juice defenders no task killers no set cpu or anything even remotely close to apps of that nature.
good day.
Not running juice defender or anything else for that matter, my phone is basically stock out of the box right now other than CWM 2.5.1, un-rooted. I did flash super user to phone after I received it, and that still appears in my apps list after factory reset but I am not rooted.
I've spent at least 8-10 hours [combined] searching the internet for issues like mine with the disappearing act the 3G icon is putting on, and i've noticed it to be a Froyo issue [even saw some complains on the Incredible on froyo and even on different networks other than verizon]. I'm not 100% sure its a Froyo bug, but either way it doesnt seem to affect everyone. I stream music a lot and i can't be having this damn 3G disappear on me and always reconnecting after like every 2 songs.....im off to verizon, i'll let you know what happens [tho they are prob going to offer me some kinda upgrade like they did on the phone, but i was happy with this phone at 2.1 and overall still am, i just want my 3G to stop glitching!]
qwiktune said:
I've spent at least 8-10 hours [combined] searching the internet for issues like mine with the disappearing act the 3G icon is putting on, and i've noticed it to be a Froyo issue [even saw some complains on the Incredible on froyo and even on different networks other than verizon]. I'm not 100% sure its a Froyo bug, but either way it doesnt seem to affect everyone. I stream music a lot and i can't be having this damn 3G disappear on me and always reconnecting after like every 2 songs.....im off to verizon, i'll let you know what happens [tho they are prob going to offer me some kinda upgrade like they did on the phone, but i was happy with this phone at 2.1 and overall still am, i just want my 3G to stop glitching!]
Click to expand...
Click to collapse
I agree, just want my 3G to work the way it is suppose to. Dont really want an upgrade because I've never really gotten an upgrade that I actually thought was an UP-Grade. *From Verizon anyway* Still downloading software update, been well over an hour and at 73%. At this rate Verizon store will be closed by the time I'm done with this update attempt.
"UPDATE FAILED or INCOMPLETE. reason: IP_START_UPDATE" Anybody know the possible causes of this failure?
Sounds like you are indeed losing your IP address. I have also had sporadic problems but they seem to be in low service areas. Typically I remain stationary and use local wifi so it is unconfirmed.
Sent from my SCH-I500 using XDA App
Just got back from Verizon, non of the techs could figure it out, i got this phone awhile back from a friend [so naturally theres no warrenty..etc] so im stuck gonna have to hit craigslist and such to find a new one, then sell this one i guess
FINALLY FOUND A FIX [or should i say it found its way to me thanks to myself posting this issue on multiple forums lol] I can confirm that method 2 has worked for me. Dont just dial *228 with fascinate already activated, you have to remove the service completely [by activating another phone is how i did it] then reactivate it and you should be good to go. Heres a write up.
http://mobiletech.knguyentu.com/2011/04/samsung-fascinate-random-3g-disconnect.html
I just started haveing this problem when I went on the Comm. ROM
I was fine before that so I am really confused.
update:
So I did option 2 in the above post and it fixed it.
MSHancock said:
I just started haveing this problem when I went on the Comm. ROM
I was fine before that so I am really confused.
update:
So I did option 2 in the above post and it fixed it.
Click to expand...
Click to collapse
Glad to hear it, i know how frustrating it is not knowing what is going on or how to fix it. I searched since Froyo OTA looking for an answer, luckily someone saw my plight and gave me that link as well so i thought i'd share it on all the android forums i have a name on. Cuz doin this never occurred to me and i tried everything else lol

SOLVED [Q] 3G/Mobile Data Not Working

So after rebooting about a week ago on BAMF Remix 1.7 (I think the ROM is irrelevant but just putting it in for information's sake), my 3g/mobile data stopped working. When I go into network settings, the Mobile network option is checked to connect to the internet and under APNs, there is a vzwinternet profile with a green (I'm guessing turned on?) marker.
I've tried various ROMS: BAMF, BAMF Remix, CM7, and even the Gingerbread variations of BAMF as well.
Also I've experimented with all of the radios (every one listed under the obligatory radio thread) and different kernels.
And lastly, I've wiped multiple times every time I've flashed a new ROM and have even formatted my SD card hoping it was some rogue application that disabled it.
So what can I do to bring back 3g/mobile data?
Note: Wifi, calls, and sms will works for me. MMS does not however.
I have the same problem but mine shows after rebooting, than say error when I try browser or anything that has to do with data, But works at times.
*WALK in the WORD*
Mine isn't working at all. Not even after rebooting.
tflogic said:
Mine isn't working at all. Not even after rebooting.
Click to expand...
Click to collapse
How you checked with your Carrier? I'm with Orange UK and my 3g was down for 4 days once due to cell tower maintenance...
Might be worth a call to check!?
Sent from my HTC Desire using XDA Premium App
I suppose that would be the logical thing to do next before I start torching my Thunderbolt.
Thanks!
tflogic said:
I suppose that would be the logical thing to do next before I start torching my Thunderbolt.
Thanks!
Click to expand...
Click to collapse
I almost did exactly the same!
Sent from my HTC Desire using XDA Premium App
This happened to me, exactly as you've stated. I posted here but got no remedy. I tried all the things you've mentioned, reflashing the ROM, raeflashing the radio, etc. Nothing helped.
Finally, I had the idea to restore a recent backup from before I had the problem. THAT worked. I hope it helps you too.
I didn't have a chance to call during the day but I did head over to my friend's house who lives in a different area. She has VZW just as me and she was getting 3G on her blackberry but 3G/mobile data was still unavailable for me.
It's not a coverage issue but on my end.
While lurking around the mobile data settings, there was a profile for VZW under APN settings. Could someone post theirs so I could see if they match with mine? Maybe that's the solution to my problem?
I don't think it's rom dependent. I lost 4g the other day and I have yet to get it back. I have my own theories but the jerk at the VZW store wouldn't let me try my theory. I'm waiting for my usual rep to comeback, she lets me try just about anything I want. The rest are just dicks. I have tried swapping roms, radios, and all but going back stock to fix it. And nothing has brought it back. BTW, have you tried CDMA prl to see if you can get data at all? I can get 3g that way, but when I go into evdo/lte or lte only I lost all data. Also, do you have it in rev A mode under your modem settings?
I had this exact same problem with BAMF remix 1.6.3, to make this story short this is how it eventually got fixed:
Go into settings and do a check for new software.
This will force 3g to cut on. (Note: it may take a few times for the 3g to come on and STAY ON. It took me almost a day doing it about every hour.
Enjoy
Holy crap, that worked. Of all the things I tried and I couldn't get anything. Now LTE is back. You're awesome.
LCSO 9c8 said:
I had this exact same problem with BAMF remix 1.6.3, to make this story short this is how it eventually got fixed:
Go into settings and do a check for new software.
This will force 3g to cut on. (Note: it may take a few times for the 3g to come on and STAY ON. It took me almost a day doing it about every hour.
Enjoy
Click to expand...
Click to collapse
I have to go to work right now but yes it is turning on 3G at the moment but it's only using the up arrow (eg. uploading data but not downloading data). I"m guessing with a couple of more tries it'll eventually lock in.
If this doesn't work on gingerbread, I'll try reverting back to froyo and try it then as well.
1454 said:
Holy crap, that worked. Of all the things I tried and I couldn't get anything. Now LTE is back. You're awesome.
Click to expand...
Click to collapse
Glad I could help.. I spent nearly two hours on the phone with Tier II support and they guy said.. well this is a long shot but try this. Didnt work the first time I tried it so he sent me a new phone but in the time it took to get the new phone, I kept trying and it finally locked in.
Ok, well I thought it worked. Every time I try it, it will give me the 4gLTE indicator, but if I open up anything that uses data it just says no mobile conectivity then after about 5-6 min it stops showing any data. Also, I can still go back to CDMA(PRL) and get 3g. It's just under 4GLTE/evdo and lte only.
BTW, for any other future reference, I started experiencing these issues right after I debloated (uninstalled) the blockbuster app.
1454 said:
Ok, well I thought it worked. Every time I try it, it will give me the 4gLTE indicator, but if I open up anything that uses data it just says no mobile conectivity then after about 5-6 min it stops showing any data. Also, I can still go back to CDMA(PRL) and get 3g. It's just under 4GLTE/evdo and lte only.
BTW, for any other future reference, I started experiencing these issues right after I debloated (uninstalled) the blockbuster app.
Click to expand...
Click to collapse
keep trying... it will stick eventually
It's alright, I have a replacement coming tuesday. I just have to return to stock before then.
When you guys went to the software update option, during that duration when it was enabled were both 3G arrows animated? I'm only getting an up arrow (uploading).
I've been trying now for hours on the PRL setting and also cdma+lte/evdo auto
Well, I haven't been able to get this to work. Is there anything else I should try besides the software update trick before returning my phone to stock and returning it to VZ?
i had the same problem as you OP, but after pressing check new enough times and jumping straight into the browser, i got it to stick. took at least 12 tries, however and i'll see if it lasts.
love the franklin avatar btw!
also, is anyone using juice defender? idk if its coincidence or not, but i d/l the program last night and this is the first data connectivity problem i've had with the tbolt.
Yes, I had both arrows. But, for some reason when I would open the browser to google it wouldn't work. I tried about 4 times, each time it would show data, but I wouldn't have a connection. Also, it would show data being up and down stream, but I couldn't manage to get it to work when I tried it.

[Q] Data Loss Ruining my GB experience :(

Hey,
I've been experiencing data connection loss on CM7-14/29, latest VGB, and PP (all MTD/AOSP GB ROMs).
Issue: Randomly, during the day, my internet dies, SMS/Voice appears unaffected.
This results in no connectivity on any apps, the 3G symbol is still there, but is white.
Turning it into airplane mode for 15s or so and then turning it back seems to fix the problem.
Attempted resolutions:
- Wifi sleep policy set to "never"
- Wifi sleep policy in spare parts set to "never"
- ESN swapped twice.
Anybody have any idea on what the hell I can do? BTW: My wifi is almost never on, so I don't think it's related to the WIFI handing off to 3G issue, because I RARELY use WIFI, and this happens (just happened again like 10 minutes ago), and there's no networks here it can even connect to, AND it's disabled.
I'm completely getting killed by this connection issue, b/c it stops randomly, then I don't get e-mail until I take notice that I'm not getting e-mail .
Pretty sure I'd take the SD card corruption issue AND the voice issue over this problem... :'(.
Problem resembles the invalild key issue that happens when switching ROMs, but the ESN swap twice (after two different ROMs were installed) seems to have ruled that out...or maybe I'm not doing something right about the ESN swap? Does the OTHER phone have to be activated during its time?
Anybody have any other fixes I can try?
EDIT:
Problem persists on all MTD AOSP GB ROMs, but right now I'm on CM7-29 with the EC09 modem, ESN swapped after modem flash.
Syndacate said:
Hey,
I've been experiencing data connection loss on CM7-14/29, latest VGB, and PP (all MTD/AOSP GB ROMs).
Issue: Randomly, during the day, my internet dies, SMS/Voice appears unaffected.
This results in no connectivity on any apps, the 3G symbol is still there, but is white.
Turning it into airplane mode for 15s or so and then turning it back seems to fix the problem.
Attempted resolutions:
- Wifi sleep policy set to "never"
- Wifi sleep policy in spare parts set to "never"
- ESN swapped twice.
Anybody have any idea on what the hell I can do? BTW: My wifi is almost never on, so I don't think it's related to the WIFI handing off to 3G issue, because I RARELY use WIFI, and this happens (just happened again like 10 minutes ago), and there's no networks here it can even connect to, AND it's disabled.
I'm completely getting killed by this connection issue, b/c it stops randomly, then I don't get e-mail until I take notice that I'm not getting e-mail .
Pretty sure I'd take the SD card corruption issue AND the voice issue over this problem... :'(.
Problem resembles the invalild key issue that happens when switching ROMs, but the ESN swap twice (after two different ROMs were installed) seems to have ruled that out...or maybe I'm not doing something right about the ESN swap? Does the OTHER phone have to be activated during its time?
Anybody have any other fixes I can try?
EDIT:
Problem persists on all MTD AOSP GB ROMs, but right now I'm on CM7-29 with the EC09 modem, ESN swapped after modem flash.
Click to expand...
Click to collapse
I had the same problem try flashing back to a VZW rom (dl09,eb01, or ed05) and run it for a day and see if you have the same problem...I did and brought it into Verizon none the less with eb01...(not an official Verizon release) and they confirmed my modem was hosed...they over night'd me a new one and I sent the old one back with eb01 on it and they never gave me a problem!
Sent from my SCH-I500 using XDA App
efan450 said:
I had the same problem try flashing back to a VZW rom (dl09,eb01, or ed05) and run it for a day and see if you have the same problem...I did and brought it into Verizon none the less with eb01...(not an official Verizon release) and they confirmed my modem was hosed...they over night'd me a new one and I sent the old one back with eb01 on it and they never gave me a problem!
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
I ran UKB 2.1 for like a week, last week. Not a hiccup. I don't think this is a HW issue, had no problems on UKB, nor OEM Froyo, nor OEM Eclair.
This is the second one (first one's camera HW was dead after like 2 weeks of use, verified by VZW), I really think the modem HW is fine, that's an issue with my setup or my process of flashing or something along those lines, still possibly key related for the authentication keys with Verizon if I'm not doing something right in the ESN swap process.
Maybe I'll try pushing a non-EC09 modem tonight (like ED05) and see if that fixes the issue, any other modems I should try? This problem sucks, just went to lunch, came back, no data *sigh*. Posted this right before I left for lunch (about 1.5 hours ago), right after it happened earlier...
Syndacate said:
I ran UKB 2.1 for like a week, last week. Not a hiccup. I don't think this is a HW issue, had no problems on UKB, nor OEM Froyo, nor OEM Eclair.
This is the second one (first one's camera HW was dead after like 2 weeks of use, verified by VZW), I really think the modem HW is fine, that's an issue with my setup or my process of flashing or something along those lines, still possibly key related for the authentication keys with Verizon if I'm not doing something right in the ESN swap process.
Maybe I'll try pushing a non-EC09 modem tonight (like ED05) and see if that fixes the issue, any other modems I should try? This problem sucks, just went to lunch, came back, no data *sigh*. Posted this right before I left for lunch (about 1.5 hours ago), right after it happened earlier...
Click to expand...
Click to collapse
idk man doesn't sound good. I am getting a replacement for mine (i somehow fried my modem/data or something?), but I just may never flash a rom again because ever since I started flashing my modem has become worse and worse... and now it is completely fried.
I have tried flashing a million modems before without a change, so I doubt that will help you. I would just recommend going BACK to what worked, and sticking with it, or you could fry your **** like I did.
i'm on miui 8.19 and every once in awhile i get a force close for android.phone and my 3g disappears too
I always had very weird data problems on 2.3 MIUI/CM7. The market would hang constantly or the browser would. I'd have to turn on airplane mode etc to get it back to normal.
Elluzion said:
idk man doesn't sound good. I am getting a replacement for mine (i somehow fried my modem/data or something?), but I just may never flash a rom again because ever since I started flashing my modem has become worse and worse... and now it is completely fried.
I have tried flashing a million modems before without a change, so I doubt that will help you. I would just recommend going BACK to what worked, and sticking with it, or you could fry your **** like I did.
Click to expand...
Click to collapse
Umm...ok.
Not trying to be a **** here but flashing the modem software has no impact on the modem hardware itself. Now, it is possible for modem firmware with an issue to cause damage, however, this is unlikely. The modem images are proprietary blobs swiped from OEMs, they're not tweaked by hackers in the Android community. I'm sure some OEM could figure out how to cause damage with one, but realistically they should be fine, even if the OEM was trying to kill it.
If your modem is getting worse and worse, regardless of what you did, it sounds like you had a hardware issue from the start. If that's the case, I'd suggest getting your phone replaced by VZW.
I would be extremely surprised if our problems are related. I'll keep it in mind, though.
T Nigs said:
i'm on miui 8.19 and every once in awhile i get a force close for android.phone and my 3g disappears too
Click to expand...
Click to collapse
Force close on what?
I don't get any force close, 3G just silently fades (not completely, goes from green to white). It still shows 1x or 3G accordingly, though. It's just white, hence, useless. Airplane mode for 10s fixes it.
Does this only happen on MIUI? Mine is pretty bad, happens like once an hour.
DevinLeFevere said:
I always had very weird data problems on 2.3 MIUI/CM7. The market would hang constantly or the browser would. I'd have to turn on airplane mode etc to get it back to normal.
Click to expand...
Click to collapse
Yeah, I expect either of them to glitch or hang if there's no network connection present, I have no issues with that. I have an issue with the fact that there is no network connection present .

[Q] Urgent: suddenly lost my phone signal

Hi,
Sometime today I lost my phone signal on my SG2. I'm not sure exactly at what moment as I first noticed that I had a couple of bars but no 3G when I tried to browse the web. So I restarted the phone but to no avail. Since then I've lost all bars and can't make any calls either.
The only thing I have done today "out of the ordinary" was to connect to the phone using Wifi File Explorer to transfer a file, which I tried to connect to without being on a wifi network by first trying the "Wifi Direct settings" in Settings, which didn't work, and then by tethering by Wifi which worked. Maybe some setting got stuck in the process, but I'm not sure since never checked if it worked right before and after.
If anyone has any idea what could be wrong please let me know, as I am literally without a phone!
I recommend downloading http://www.androidzoom.com/android_applications/communication/no-signal-alert-pro_fyyo.html this will definitely be of benefit to you if your suffering from signal problems, it has been of good use to me.
Check your IMEI is the correct one for your phone .If not restore your backed up EFS folder .
Or try backup data and factory reset as a first step.
jje
Thanks for the quick replies!
The IMEI does not correspond to the one I have written down, though I'm not 100% I what have on my note is the latest IMEI; but how could that change though by itself, if my note is correct??
Also, I just saw something very strange: I turned on my phone and had full bars (no 3G though), and right in front of my eyes all bars dropped, one by one, during the course of 5-6 seconds. Something is VERY off...
Regarding factory reset: my phone is rooted (thanks to XDA!) and I have Tit.backup: can I will my phone still be rooted if I do a factory reset?
Something went probably wrong when rooting it (not neccesarily any errors) and effed up tge EFS folder.
Try to flash back to stock ROM, it might work to restore your.folder.
Sent from my GT-I9100 using xda premium
UPDATE
bruflot said:
Something went probably wrong when rooting it (not neccesarily any errors) and effed up tge EFS folder.
Try to flash back to stock ROM, it might work to restore your.folder.
Click to expand...
Click to collapse
I should have been more clear on that, but I rooted the phone about a month ago and it has worked flawlessly since then, so it couldn't be that.
Anyway, I looked around a little and found this post:
http://androidforums.com/samsung-ga...connectivity-but-no-idea-why.html#post2722784
He seemed to have had the exact same problem that happened to me, so I decided to wait, and sure enough the connection reestablished itself about an hour ago and while I was watching for it, with the signal slowly creeping back up during a couple of minutes, and several hours after I lost it. Very odd.
This surely has to be an Android bug but that only shows up under certain and rare conditions.
To be sure I made a speed test and got 4.84 Mbps/up, 1.19 down, which I guess is fine; I never did one prior to this so I have nothing to compare to.
Again, appreciate the advice!
EDIT: For posterity, I should add that during these hours, even when I briefly apparently had a (non-3G) signal, I had a notification during all this time saying that I could only make emergency call.
I'm having the same issue. No Bars at all most of the time and when I have some, it never connects to 3G, G at most, and can't load any thing at all.
Very frustrating. I have been using Lite'ning rom 6.1 for a few months and had no problems at all until about a week ago.
I flashed back to a stock rom and still having the same issue.
I've also seen the bars drop down one by one in a 5 second window, bizarre!
Anyone find a fix for this? Or could the phone be faulty?
malicedix said:
I'm having the same issue. No Bars at all most of the time and when I have some, it never connects to 3G, G at most, and can't load any thing at all.
Very frustrating. I have been using Lite'ning rom 6.1 for a few months and had no problems at all until about a week ago.
I flashed back to a stock rom and still having the same issue.
I've also seen the bars drop down one by one in a 5 second window, bizarre!
Anyone find a fix for this? Or could the phone be faulty?
Click to expand...
Click to collapse
I was on Lite'ning about 3 weeks ago and actually completely lost signal several times. Reboots and hard resets solved the problem temporarily. I then flashed Batista FH 2.4 with ICS and things were great. I'm now on GingerMod. No issues.
I don't know how it could be kernel related though, especially if you are 100% stock again.

Phone loses signal and cannot reconnect to network

Hi guys,
I wanted to post this in the development thread but since I'm new in here this wouldn't happen
So, here's the problem - my Samsung I9100 phone loses signal and cannot reconnect to the network unless rebooted. You can see the kernel and ROM state from the screenshot.
Every now and then the phone loses signal and unsuccessfully tries to reconnect to the network. I cannot make outgoing calls but am able to receive incoming (but only sometimes, in some cases it wouldn't receive incoming neither). Only a reboot solves the issue but this loss of signal happens at least several times a day and this is quite irritating.
Other problem is when the phone is at a state of no signal, it writes some logs in the system partition in \data\logs which quickly take up all the free memory.
I've been using this ROM since v 3.7. I've updated it twice to get to v 3.91. Through all the releases the issue persisted. I haven't had these problems with other ROMs.
I read somewhere in here that this might be a problem with misplaced or worn-out SIM card. So I put the same SIM in my old Nokia phone and tested for several days - no loss of signal observed in that period.
So any help or advise would be appreciated.
Could this be a ROM issue or a hardware problem? Maybe a kernel problem?
Would be glad if more advanced users give some ideas.
That's it for now, if you got any questions regarding the problem or I missed some information let me know.
Cheers!
Could it be this http://forum.xda-developers.com/showthread.php?t=2162374&highlight=signal+loss
or this http://forum.xda-developers.com/showthread.php?t=2178090&highlight=signal+loss
Have you tried other modem firmwares?
OK, seems like the easiest solution is to just change the modem...
I changed it to XXKI4 from this thread http://forum.xda-developers.com/showthread.php?t=1277593
I'm starting to monitor whether the problem will reoccur.....
Hi have you solved the problem, as I'm having the same problem ?
hi :cyclops:
when I changed the modem to XXKI4 I experienced the same issue almost immediately after reboot....
then I flashed XXLPX (on random), rebooted again. Since then no problems observed, signal strength is high and 3G speeds are OK....
will keep monitoring for several more days and update you on the issue (I'd be really glad if this simple fix solves it )
the_psycho said:
hi :cyclops:
when I changed the modem to XXKI4 I experienced the same issue almost immediately after reboot....
then I flashed XXLPX (on random), rebooted again. Since then no problems observed, signal strength is high and 3G speeds are OK....
will keep monitoring for several more days and update you on the issue (I'd be really glad if this simple fix solves it )
Click to expand...
Click to collapse
Hey, having the same issue... Anything new with this modem?
I've got signal lost almost every day, sometimes few times a day, every few days the signal drops and not back (when I'm clicking on 'mobile networks' I've got the message: "insert sim card - insert sim card to access network services") and only reboot fix this problem (airplane does nothing).
Tried to clean the SIM card, the sim housing, Its not happening in specific place...
I know people who have this issue and uses a different ROMs/Kernels/Modems ROOT/NO ROOT...heres a little list:
Im using right now STOCK 4.0.3 LPG, modem: LQ6 with Siyah kernel 3.4.1
Others using other stock 4.0.3 / 4.0.4 with modems: JHLP9, LPS, ...
Someone mention [not here] about lpx modem that fix it...
If someone else tried it would be great if you share.
thanks!
I had this issue and replaced my battery with another genuine original battery which fixed it totally.
awojtas said:
I had this issue and replaced my battery with another genuine original battery which fixed it totally.
Click to expand...
Click to collapse
Well, sounds weird...I doubt if its the battery... how long you using the new battery? sometimes its just comes and goes....
Signal lost - log screenshot
Ok, I took a screenshot from alogcat at the same time I've lost the signal... (I export the whole log but seems this app is not that smart and its export only after the signal lost so its irrelevant)
At screenshot - only the 'error messages'
Can anyone analyze this error messages? why is it happens?
Suddenly the signal lost sometimes while call sometimes not, at this time I had to reset the device to get the signal back (its happens once per few days), sometimes its lost and back after ~1 minute...
Don't know if this device has a problem (all the problems that i've heard are from this device, no matter what modem each one use) or its something else....
Would like for some help with this log, and the guy who tried the LPX modem - if its works fine now....
Thanks!
no, it doesn't work.
was OK for a few days then the problem started again.
1-2 times a day I have to reboot due to signal loss.
and the irritating part is that while with no signal the battery drains a lot and the don't-know-what-are-these-for logs keep on generating, filling the whole internal memory......
will continue to dig for a solution....
the_psycho said:
no, it doesn't work.
was OK for a few days then the problem started again.
1-2 times a day I have to reboot due to signal loss.
and the irritating part is that while with no signal the battery drains a lot and the don't-know-what-are-these-for logs keep on generating, filling the whole internal memory......
will continue to dig for a solution....
Click to expand...
Click to collapse
Do you have a roaming enable?
Here I suspect its the reason for losing the signal, maybe its the problem...
Did you tried your SIM with other device (not S2)?
PsyOr said:
Do you have a roaming enable?
Here I suspect its the reason for losing the signal, maybe its the problem...
Did you tried your SIM with other device (not S2)?
Click to expand...
Click to collapse
no, roaming is not enabled and I have tried using the SIM on another phone with no problems
one strange thing is that the disconnection happens absolutely random... at first it happened several times a day.. at recent times it is more rarely - every few days.. disconnections are not related to any location or certain conditions of phone usage... simply no idea
soon I will change the ROM (respectively the kernel as well) and see if this continues
Thats weird...a lot of people with other devices have this issue...at first I thought its only on S2 (modem/kernel/hardware) then I thought its a infrastructure issues in our area.... donno mate....
the_psycho said:
no, roaming is not enabled and I have tried using the SIM on another phone with no problems
one strange thing is that the disconnection happens absolutely random... at first it happened several times a day.. at recent times it is more rarely - every few days.. disconnections are not related to any location or certain conditions of phone usage... simply no idea
soon I will change the ROM (respectively the kernel as well) and see if this continues
Click to expand...
Click to collapse
Need help with this also, same issue
posting an update on the situation...
I changed the ROM with full wipe of data as well as internal memory format. Installed the latest 10.1.3 stable ROM from cyanogen - this means different kernel, different radio and a stable ROM.
And it goes on.... if I had money right now I'd just change the phone cos I'm getting sick of this ****
Please HELP
Hi all
PLS help, I have NO signal network and wifi. I bought one i9100 with 4.1.2 (have not lost IMEI- I have it) and can´t have network signal and if I want on my wifi, there is problem it can be open, always icon wifi start and stop in one second. I have nit beckuped EFS, phone was rooted last man from who I have bought.
Now I have Stock I9100XWLSD_I9100VDCLSC_I9100BULS1_HOME.tar
Thanks
the_psycho said:
no, roaming is not enabled and I have tried using the SIM on another phone with no problems
one strange thing is that the disconnection happens absolutely random... at first it happened several times a day.. at recent times it is more rarely - every few days.. disconnections are not related to any location or certain conditions of phone usage... simply no idea
soon I will change the ROM (respectively the kernel as well) and see if this continues
Click to expand...
Click to collapse
As per experience this is also due to battery getting weak. Monitor the % you get this problem the most. If it arises around tje same % level then its battery. Also check your battery by rotating it on table and note if it rotats easily and there is any bump in the battery
Sent from my GT-I9100 using xda premium
---------- Post added at 06:43 AM ---------- Previous post was at 06:42 AM ----------
Paul Koty said:
Hi all
PLS help, I have NO signal network and wifi. I bought one i9100 with 4.1.2 (have not lost IMEI- I have it) and can´t have network signal and if I want on my wifi, there is problem it can be open, always icon wifi start and stop in one second. I have nit beckuped EFS, phone was rooted last man from who I have bought.
Now I have Stock I9100XWLSD_I9100VDCLSC_I9100BULS1_HOME.tar
Thanks
Click to expand...
Click to collapse
This is fault of efs in most cases.
Try jelly snap rom which i have most stable and see if it resolves the issue
Otherwise search how to repair efs if pissible
Sent from my GT-I9100 using xda premium

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