Develop Bugs

Help -problems with 3G sim card -keeps losing signal and resetting.

Hello,
Sorry if this question has been answered elsewhere but I am a noob to this site. I have looked -promise!
Basically I have had an XDA Orbit on O2 UK which I have had for over a year with no problems. Recently I changed contracts but kept the same phone and O2 sent me a new 3G sim card.
Now when using the device for a long time (such as wi-fi, reading a book in Microsoft Reader, making a call) the phone will lose the phone signal and slow down. If left it will sometimes recover and get a signal again, or sometimes it keeps searching for a signal for a few minutes and then resets itself.
Sometimes when it is searching for a signal the top area of the phone gets warm.
I have tried a hard reset but this has not solved the problem. Is this to do with the 3G sim card? Should I try upgrading the ROM of the radio stack? Or would an entirely new ROM help?
The version details at startup are:
IPL 3.04.0001
SPL 3.04.0000
GSM 02.67.90
OS 3.4.0.0
Please help. Thank you.

Try to upgrade your Radio ROM. That can be a good solution.
Cheers

Thanks -I will try that tonight.

Ok I have updated the radio ROM and I still get the same problem. It will be fine for a bit but then the phone will lose signal, keep searching, and eventually reset itself.
Would using an entirely new ROM help or is the fact that this was not fixed by updating the radio ROM indicate that is this more of a hardware problem?
The details at startup now look like this:
IPL 3.04.0001
SPL 1.11.0000
GSM 03.21.90
OS 3.4.0.0
Thank you.

Yes... That looks like a hardware problem to me, since you upgrade your Radio ROM.
But for a last test you can flash a WM6.1 ROM and see if the problem is the same.
If it maintains then is surelly a hardware problem.
Cheers

I don't usually post on these forums but have been a reader for some time!
There are some things you need to know about 3G before you use this handset with this sim!
it's against your terms and conditions to use a none 3G handset with your sim 3 can and will cut your number off (ive seen it happen)
secondly 3 only have 3G netowrks they use orange's masts for when customers drop out of signal range to 2g. Hence your using orange masts which take it from me are rubbish! they have some of the worst reception in the country and ive only recently stopped selling mobile phones i doubt they changed much in 6 months!
to cut it short you need a 3G phone to go with your 3G sim im afraid this handset is not capable of 3G .

Hi thanks, for your comments.
I am not using a 3 sim card, it is an O2 3G sim card. I have tried today to reflash the O2 UK ROM image with the original settings to see if this helps but it still spends a long time without a signal and resets itself when it cannot get a signal for a while.
Is anyone else using a 3G sim card in this phone?
It worked well enough for me today to ring O2 and ask them if I could be "downgraded" to a 2G sim card. They said that they don't even do 2G sim cards anymore, but they said if I go to O2 store they may have a 2G pay as you go sim, and instead of activating it they could transfer my account details over to it. Anyone heard of that before?
When I went to the shop they said they didn't have any 2G sims and to reset the phone and try to get the settings sent to the phone from O2 online. Which I have done but surprise surprise no luck -not that I really believed the guy in the shop anyway but thought it was worth a try.
Any comments or suggestions?
Thanks.

Just to update, I have tried so many different things to get this fixed but it seems as though the 3G sim card is not the problem, as all fixed now by buying a replacement battery.
Now the phone works fine all of the time -it does not lose signal or anything. The old battery must have been faulty.
I do not know the exact fault but my guess is that when I turned the phone on at startup it was ok, but then as soon as I did anything it was drawing more current/amps from the battery it generated a fault which then made the phone lose signal and eventually reset.
I'm not sure on the science of it all exactly but it buying a new battery on ebay for £7 has certainly fixed the problem.
The Orbit/Artemis works fine with a 3G USIM -they are backwards compatible with a 2G SIM card and this obviously was not the problem.

Hi.
I have a similar problem... my o2 xda orbit for the last few days keeps hanging and reseting. It takes some time for me to be able to turn it on again.
even if i take out the battery and put it back in again...
Is this similar to what happened to you?
judgereinhold said:
Just to update, I have tried so many different things to get this fixed but it seems as though the 3G sim card is not the problem, as all fixed now by buying a replacement battery.
Now the phone works fine all of the time -it does not lose signal or anything. The old battery must have been faulty.
I do not know the exact fault but my guess is that when I turned the phone on at startup it was ok, but then as soon as I did anything it was drawing more current/amps from the battery it generated a fault which then made the phone lose signal and eventually reset.
I'm not sure on the science of it all exactly but it buying a new battery on ebay for £7 has certainly fixed the problem.
The Orbit/Artemis works fine with a 3G USIM -they are backwards compatible with a 2G SIM card and this obviously was not the problem.
Click to expand...
Click to collapse

I think that I had the same problem but with a normal 2g sim. After an
intensive use over 1,5 years my Artemis p3300 had low signal and frquently resetting. I resolve all these problems changing the battery with a new one. It's important advise all Artemis owners that a lot of problems can be due to an old battery!

Yes that's basically exactly what happened to me. It would lose signal, keep searching then eventually reset. When I turned it back on it would still not have a signal and would take lots of times of turning it on and off before it would settle down again.
I bought a new battery from ebay for £4.95 (+£2.95 p&p) and now everything is working fine and has been for over a couple of weeks.
I had tried changing the ROM and still had the same problem. I would advise you to get a new battery and try that.

Hi, I am from CZ... - P3300 by Vodafone CZ
When I connect to wifi I sometimes lose the signal for phone.. One time I lose signal during the phoning and sometimes I lose signal when I use GPS...
Phone is 1,6 years old...
It is the same problem, isn't it?
It's a pity :-(
Can you give me an advice where I can buy the best battery? Should I buy a battery in CZ (home) or in abroad I can find cheaper and better??
(sorry about my english)

Yes that sounds like the same problem to me, I got a new battery from ebay because I thought it would probably be cheapest.
Try Vodafone first as they will be able to sell you a new battery and it may not be too expensive.

Artemis no service

Hello everybody now switched from Wizard to Artemis, missing qwerty ehh.
Snipped it one ebay, lucky me didn't read the listing carefully, device was sold damaged, gsm signal weak or no at all, unable to make a call at all times.
Antenna seems to be in a good shape, device unlocked.
Digged forum inside out, no solution found so far:
Tried different roms, radio roms.
Tried original o2 (since mine is xda o2 arte200)
Changed to new battery,
Even got gsm signal booster,
No luck so far, Hardware?.

tried all softs and radios on xda no luck:/

Did you saw if the Antena Pins are making good contact with the motherboard?

yes and I double checked it now, tried to call afterwards. Even when the signal indicator is full, I'm not able to make a call.

The same problem with m650
Hi,
Unfortunatelly, I have the same problem with my m650 ;(. Since 4 days, I got the GSM signal problem. Especially inside closed spaces (flat), even if the GSM signal seems to be full I can't make any call (telephone ends it). On the fresh air it's better.
I'm curious, if You had find any solution to this problem out. I'd be very greatful for Your help.
Best,
Dzeus.

Sim Card Removed - Restart/Reboot Phone

Hi there
i own a galaxy S3 TMobile version for 2 months now.
I recently update on last rom and since then i am getting the following error.
Sim card removed. Replace the sim with a valid sim and restart/reboot the phone.
I am not really sure if i wrote the message exactly as it appears but thats the meaning of it.
I have unlocked the phone to use it on Greece.
I have the same sim on it, since the beggining.
I didnt had the problem before the update. And for sure the problem poped up some days after the update.
When i see that msg the most of the times (if not always) data is enabled.
I should also say that when i see that msg the phone is just sitting untouched. Phone has never dropped or anything like that.
For sure its annoying.
When i restart phone sim is working perfectly...... ..
Has anyone heared about it? Anyone who faces the same prolem and found a solution?
I tried to google it ut i came up with no answers...
Any help is welcome.
Thank you in advance

have u tried a different SIM yet?
Sent from my SGH-T999 using xda premium

I had the same kind of issue on my previous phone. However, there is no data on my phone that I had to reboot my phone a few times to establish data connection. Secondly, sometime I missed called. Replacing SIM card may not help either. A few people had reported the same kind of issue on T-Mobile Support site.
Leoniums said:
Hi there
i own a galaxy S3 TMobile version for 2 months now.
I recently update on last rom and since then i am getting the following error.
Sim card removed. Replace the sim with a valid sim and restart/reboot the phone.
I am not really sure if i wrote the message exactly as it appears but thats the meaning of it.
I have unlocked the phone to use it on Greece.
I have the same sim on it, since the beggining.
I didnt had the problem before the update. And for sure the problem poped up some days after the update.
When i see that msg the most of the times (if not always) data is enabled.
I should also say that when i see that msg the phone is just sitting untouched. Phone has never dropped or anything like that.
For sure its annoying.
When i restart phone sim is working perfectly...... ..
Has anyone heared about it? Anyone who faces the same prolem and found a solution?
I tried to google it ut i came up with no answers...
Any help is welcome.
Thank you in advance
Click to expand...
Click to collapse

I tthought I was the only one plagued by this issue..
I have this same issue. It usually happens whenever I lose network coverage......it happens repeatedly.. This issue started happening after I updated to jelly bean...ICS had no problems..
I have changed my sim 3 times, installed several touch wiz custom ROMs, changed my base bands and kernel...The issue remains prevalent after all these..
The only way I have been able to resolve this issue is by switching to an AOSP ROM like cm10 or paranoid android rom
I hope a fix for this issue is found soon cos i am tired of restarting my phone everytime i lose network coverage
I have attached a screenshot showing this

replacement sim ractified the problem
Leoniums said:
Hi there
i own a galaxy S3 TMobile version for 2 months now.
I recently update on last rom and since then i am getting the following error.
Sim card removed. Replace the sim with a valid sim and restart/reboot the phone.
I am not really sure if i wrote the message exactly as it appears but thats the meaning of it.
I have unlocked the phone to use it on Greece.
I have the same sim on it, since the beggining.
I didnt had the problem before the update. And for sure the problem poped up some days after the update.
When i see that msg the most of the times (if not always) data is enabled.
I should also say that when i see that msg the phone is just sitting untouched. Phone has never dropped or anything like that.
For sure its annoying.
When i restart phone sim is working perfectly...... ..
Has anyone heared about it? Anyone who faces the same prolem and found a solution?
I tried to google it ut i came up with no answers...
Any help is welcome.
Thank you in advance
Click to expand...
Click to collapse
I had the same problem the other day when I was driving home from work. I think it happened when I went from 4G to 2G coverage. And also, when I'm in 2G coverage, signal fades out completely and comes back on 10 secs or so later. I went to Tmobile and replaced my sim with a new one and I had no problem of such ever since. .. at least so far so good.

droidNoob74 said:
I had the same problem the other day when I was driving home from work. I think it happened when I went from 4G to 2G coverage. And also, when I'm in 2G coverage, signal fades out completely and comes back on 10 secs or so later. I went to Tmobile and replaced my sim with a new one and I had no problem of such ever since. .. at least so far so good.
Click to expand...
Click to collapse
just restore to stock , and you can use it

thecat1102 said:
just restore to stock , and you can use it
Click to expand...
Click to collapse
Believe me I have Odin end back to stock n the issue still persists.....changing sim cards is only a temporary solution....
The problem always comes back especially if you always in an area with no network signal

Warranty exchange! Samsung should replace it. Say won't read sim card. Or tmobile
Sent from my SGH-T999

It seems that it happens when the data signal is bad.
Yesterday i had to reboot more than 3 times inside in a 4h period.
Wth........

First & foremost,
How did you "unlock" your phone? Did you mess with the NV data??
Or were you a good boy & had T-Mobile do it for you?
It sort of sounds like T-Mobile may have disabled your SIM card altogether....which may happen if you screwed around with the NV data.
If it was properly unlocked by T-Mobile you should be able to stick whatever SIM card in there now. Easy to test, go down the street to your nearest Greek mobile telecom store & ask if you can test a prepaid SIM card in your phone. Assuming the GSM networks are to some degree similar to the US T-Mobile networks, you should even be completely in good shape using local GSM service.
*IF* you get the same issues with the local SIM card....well screw it then. Go protest in the streets about the austerity measures in effect at the moment. Or just be a lazy Greek bastard & demand 14 months salary paid, require retirement at age 50 and lastly *NEVER* pay property tax on anything.
/rant
Besides, you're in a marvelous country full of great food, drinks, parties and oh yeah nice women too. No Yiayia's tho.
Wtf you wasting time on stupid phones for hehe

puretone said:
How did you "unlock" your phone? Did you mess with the NV data??
Or were you a good boy & had T-Mobile do it for you?
It sort of sounds like T-Mobile may have disabled your SIM card altogether....which may happen if you screwed around with the NV data.
Click to expand...
Click to collapse
Well i have unlock the phone through internet. I had no issues for the past 2 months at all and yes i am using a local sim card from the beginning. The problem came up with the last upgrade!
Besides that i have a backup of the nv data but i am pretty sure that isnt the problem.
puretone said:
*IF* you get the same issues with the local SIM card....well screw it then. Go protest in the streets about the austerity measures in effect at the moment. Or just be a lazy Greek bastard & demand 14 months salary paid, require retirement at age 50 and lastly *NEVER* pay property tax on anything.
Click to expand...
Click to collapse
LOL? What is that? Everyone around the world is talking about the Greek people and have no clue of what it really happens. I work 12-14 hours per day including weekends.... i pay more than 600 Euros on taxes per month and i ll never get those money back since retirement is at 70 yo!!! Most of the people are like this. Foking politicians and goverments who have been stealing money for so many years. That was the problem and not the people!
I wish i knew why you mention all these!

sim card removed
I'm having the same issue with my s3
I tried to unlock it using this method
http://forum.xda-developers.com/showthread.php?t=2014982
I'm not sure if it worked, but perhaps messing with NV data screwed something up??
I upgraded to jelly bean 4.1.1
I tried cleaning the contacts on the sim
I replaced the sim at WIND
I even tried a factory reset
Nothing worked so far.
Has anyone figured out why it's doing this? Is it hardware related? software related?

vivamente said:
I'm having the same issue with my s3
I tried to unlock it using this method
http://forum.xda-developers.com/showthread.php?t=2014982
I'm not sure if it worked, but perhaps messing with NV data screwed something up??
I upgraded to jelly bean 4.1.1
I tried cleaning the contacts on the sim
I replaced the sim at WIND
I even tried a factory reset
Nothing worked so far.
Has anyone figured out why it's doing this? Is it hardware related? software related?
Click to expand...
Click to collapse
In the same boat as you...I thought i was the only one..
on wind's sgh-t999v Galaxy SIII ... unlocked it like you did, and I'm getting a no sim card, restart required error, get it about every 8 hours or so..
i ported my number over too, but it says under "my phone number" in settings.. has a completely different number than what I'm currently using.. not sure if that has any effect..
tried restoring to factory settings too.. nothing seems to work...
if anyone has any info that would be much appreciated...

From the cold boot and after the error message goes away, does your phone has data connection?
I got the same error message on my previous phone. However, it would not establish the data connection.
Watch this video to see if your phone behaves the same way --> http://www.youtube.com/watch?v=GRB-cPD-JlE
yee_fun said:
In the same boat as you...I thought i was the only one..
on wind's sgh-t999v Galaxy SIII ... unlocked it like you did, and I'm getting a no sim card, restart required error, get it about every 8 hours or so..
i ported my number over too, but it says under "my phone number" in settings.. has a completely different number than what I'm currently using.. not sure if that has any effect..
tried restoring to factory settings too.. nothing seems to work...
if anyone has any info that would be much appreciated...
Click to expand...
Click to collapse

VibrantThemer said:
From the cold boot and after the error message goes away, does your phone has data connection?
I got the same error message on my previous phone. However, it would not establish the data connection.
Watch this video to see if your phone behaves the same way -->
Click to expand...
Click to collapse
mine doesn't do that, I have a data connection almost instantly where I have a signal
the error goes away after a reboot, but the error stalks you, and you never know when it's going to strike..
sometimes when it's in my pocket waiting for a call, while i'm driving with a headset on, at night while i'm asleep
for me, it isn't consistent, but it eventually happens..
I intend on taking it to the repair center for wind next week once I get back home (with the family for the holidays)

I don't think this issue has anything to do with if the NV data was messed with because my husband and I have the same phone purchased the same day 6 months ago. We both get the same error message and it's does not always happen at the same time so I am not sure it has anything to do with the network either. When it happens to him, he tells me it's happening but it does not happen to me. I googled the error because it is annoying. I will guess now that this issue has to do with the Gallaxy s3 and the update to the firmware. I can't wait for a better update.
puretone said:
First & foremost,
How did you "unlock" your phone? Did you mess with the NV data??
Or were you a good boy & had T-Mobile do it for you?
It sort of sounds like T-Mobile may have disabled your SIM card altogether....which may happen if you screwed around with the NV data.
If it was properly unlocked by T-Mobile you should be able to stick whatever SIM card in there now. Easy to test, go down the street to your nearest Greek mobile telecom store & ask if you can test a prepaid SIM card in your phone. Assuming the GSM networks are to some degree similar to the US T-Mobile networks, you should even be completely in good shape using local GSM service.
*IF* you get the same issues with the local SIM card....well screw it then. Go protest in the streets about the austerity measures in effect at the moment. Or just be a lazy Greek bastard & demand 14 months salary paid, require retirement at age 50 and lastly *NEVER* pay property tax on anything.
/rant
Besides, you're in a marvelous country full of great food, drinks, parties and oh yeah nice women too. No Yiayia's tho.
Wtf you wasting time on stupid phones for hehe
Click to expand...
Click to collapse

Hi again
Since I know that there are a lot of people facing the same problem I thought it would be nice to give the solution on this kind of problem.
It seems that when you update via kies (of course on stock roms) something goes wrong. Recently I install the latest rom using odin and except that I found so many new things that I couldn't see before I also had no sim problem again.
So I am pretty sure that this kind of problem appears due to the kies updates. And from what I saw there where more.
If anyone else try the same please let me us know if it worked.
Good luck to u 2.
Btw yes I had that problem when the data signal was almost 0... Maybe 0.... Only then!
Sent from me

puretone said:
Besides, you're in a marvelous country full of great food, drinks, parties and oh yeah nice women too. No Yiayia's tho.
Wtf you wasting time on stupid phones for hehe
Click to expand...
Click to collapse
First of all I want to ensure you that has nothing to do with the way I unlocked the phone.
Second nv data is untouched.
3rd the problem came on after an update.
As I said after a clear fresh install without ba kups etc, starting from 0 the phone works great again and also there are options settings etc that I couldn't see before. Crazy but real. If anyone else do the same thing and make a fresh install with the latest rom he will agree with that.
So... As you said we make good parties and have nice womens... But how you will caption those moments those special (girls) moments without a nice camera (phone) ?
Have a good day hehe.
Sent from my SGH-T999 using Tapatalk 2

For those on the SGH-t999v version of the phone... the reason you are getting this "no sim error" is because of the firmware update to 4.1.1. I've sent my phone in for repairs and the best answer they could give to me was that there's an issue with the current jellybean.. not sure about the SGH-t999 standard versions though...
Unfortunately, I've had to revert back to ice cream ....and guess I have to wait till Lime Pie (OS 5) comes out...
The issue is not the NV data as I have used that method to unlock my phone as well.

Thank you for your replies. I'm relieved to know that it is not the nvdata menu that caused this problem.
I sent my phone in twice now and I've recieved it back for the second time today.
The first time resulted in further Sim card error messages. I'm keeping my fingers crossed in hopes that it does not appear again.
If op would be so kind to lead me to the right direction as to how to use Odin, I'd greatly appreciate it.

Tmobile Note 2 no network circle crossed out

Hi and thanks for any help that you can provide me.
I bought an Galaxy Note 2 SGH-T889 Tmobile version like 7 months ago from a store or reseller in Toronto Canada, the phone was in theory factory unlock, to use with the Wnmobile network which uses the same frequency as Tmobile. The phone was working until 2 days ago. Well always the phone has issue connecting to the network in some specific areas, specially because the Wind network it's not that good, but during the last 2 weeks I noticed more and more problems and some times it was just disconnected showing a circle with an slash or crossed out. After reboot the phone usually fixed the problem, until 2 days ago I had to do it every 2 hours and then the next day it just was permanent. I tried everything so far:
Remove battery and reboot
Remove battery and SIM card and reboot
Use a diiferent SIM card from my son's phone
Replace for a new SIM card
Clear Cache
Factory Reset
Reflash the modem with Odin
The phone has the latest stock ROM 4.1.2, BASE T889UVBMD1
The problem is Samsung say because it's a Tmobile they can not support it here, I have to send the phone to Samsung USA, I still fighting with the store because they said it will be covered locally, but that is another story.
I red many post talking about similar problems with the Galaxy S3 or S4 and one said that installing Jedi X14 fixed the problem, but to do that I think I have to root the phone, which not be a big problem.
The other weird thing is the phone works using other SIM card GSM, not tested with a LTE SIM.
There is any way to test if the radio/antenna for the WCMDA is disabled or broken
Thanks

fasterfoxy said:
Hi and thanks for any help that you can provide me.
I bought an Galaxy Note 2 SGH-T889 Tmobile version like 7 months ago from a store or reseller in Toronto Canada, the phone was in theory factory unlock, to use with the Wnmobile network which uses the same frequency as Tmobile. The phone was working until 2 days ago. Well always the phone has issue connecting to the network in some specific areas, specially because the Wind network it's not that good, but during the last 2 weeks I noticed more and more problems and some times it was just disconnected showing a circle with an slash or crossed out. After reboot the phone usually fixed the problem, until 2 days ago I had to do it every 2 hours and then the next day it just was permanent. I tried everything so far:
Remove battery and reboot
Remove battery and SIM card and reboot
Use a diiferent SIM card from my son's phone
Replace for a new SIM card
Clear Cache
Factory Reset
Reflash the modem with Odin
The phone has the latest stock ROM 4.1.2, BASE T889UVBMD1
The problem is Samsung say because it's a Tmobile they can not support it here, I have to send the phone to Samsung USA, I still fighting with the store because they said it will be covered locally, but that is another story.
I red many post talking about similar problems with the Galaxy S3 or S4 and one said that installing Jedi X14 fixed the problem, but to do that I think I have to root the phone, which not be a big problem.
The other weird thing is the phone works using other SIM card GSM, not tested with a LTE SIM.
There is any way to test if the radio/antenna for the WCMDA is disabled or broken
Thanks
Click to expand...
Click to collapse
If the phone is working fine with a friends sim card . There is nothing more then a issue with your sim. go to the store and have them to give you a new sim card or flash the one you have. I had that issue similar here with at&t all the time.. sims would just loose network.. The fix for me LEAVE AT&T
Good luck.

Yes, I replaced the SIM card and I got a new one.
Just trying to eliminate all the options, I just did a factory reset again, and put it back the SIM card, located outside in an area where I know there is a strong signal and the phone was able to connect to the network and I install the account ans the apps just to test the data connection and it works fine. I was outside for 20 minutes with no problem. Later go back in the building, as soon I was inside for a few minutes the phone lose connection and the circle is back, then reboot again several times, and the phone does not recognize any network, Searching and no network is available.

Aww you left out that it only does this inside but works outside.. I Would say something is blocking the signal. LIKE maybe the building..
i have two bars in my house 3 on the deck and full signal in my yard ...
its just how it is..

erica_renee said:
Aww you left out that it only does this inside but works outside.. I Would say something is blocking the signal. LIKE maybe the building..
i have two bars in my house 3 on the deck and full signal in my yard ...
its just how it is..
Click to expand...
Click to collapse
But he said it was working in side for many month then all a sudden it doesn't work? I understand I live in a mobile home and reception sucks but that from the start but his was working for couple months. I would say he's phone reception receiver w/e it is or something in the phone is screwing up and it will need repairment or replace or service just taking a dump and getting worse.

jcervantes11 said:
But he said it was working in side for many month then all a sudden it doesn't work? I understand I live in a mobile home and reception sucks but that from the start but his was working for couple months. I would say he's phone reception receiver w/e it is or something in the phone is screwing up and it will need repairment or replace or service just taking a dump and getting worse.
Click to expand...
Click to collapse
You could be right.. or maybe even the provider having issues with that tower .. its a tough thing to figure out..

Thanks for your ideas.
I get tired of trying to figure out was is the problem, so I got a SIM card from a diiferent provider which has the best network coverage and power, and i'ts happending the same, the majority of th etime the strength level is around -110 db even outside, with both providers, so it's the phone.
Now the question is could be possible that the antenna cable got disconnected or broken, (yes I dropped the phone a few times but nothing major) and it was working fine until few days ago. Another option it's some internal hardware is not working normally.
Now I have to find a way to repair becasue Samsung Canada does not want to do it becasue its a Tmobile phone.
Thanks, again.

fasterfoxy said:
Thanks for your ideas.
I get tired of trying to figure out was is the problem, so I got a SIM card from a diiferent provider which has the best network coverage and power, and i'ts happending the same, the majority of th etime the strength level is around -110 db even outside, with both providers, so it's the phone.
Now the question is could be possible that the antenna cable got disconnected or broken, (yes I dropped the phone a few times but nothing major) and it was working fine until few days ago. Another option it's some internal hardware is not working normally.
Now I have to find a way to repair becasue Samsung Canada does not want to do it becasue its a Tmobile phone.
Thanks, again.
Click to expand...
Click to collapse
Anybody with same provider as you? Invite them in you're home see if they have connection. It's best if the person have same phone and same company. Can you send directly to Samsung? I have bad phone service my area with s2 and note 2 but my friend with evo 3d has more bar then me and its made by htc but could be two things ur phone crapping out on you which need repairment or like the guy above said tower signal getting weaker. It is hard to find out. Maybe for now for a bit since it's screw up try a rom but then again rom doesn't control radio settings section but wouldn't harm. Good luck.

I'm having the same issue since last month... but with any SIM card.
The network signal strengh rests between -89 to -110 dBm. (Horrible)
The network type is always UNKNOWN:0.
What I already tried:
- Using other SIM.
- Flashing Stock ROM
- Flashing Custom ROM (CM 10.1)
- Flashing all 5 avaliable modems.
What happens:
When I get VERY close to a network antenna... I can make calls and stuff...
What can be happening:
Hardware issues - T-Mobile latest LTE unlocking update maybe burned my antenna (or some network signal related hardware).
Software issues - Can't see how since I used many variations of ROM/Modem.
I live in Brazil and my network is TIM 47. I have a Samsung Galaxy Note II T889.
If anyone can confirm perfectly to me what composes the T889 antenna components... that would be nice...
I want to buy those parts from eBay and trying fixing my phone.

Thanks for your feedback it's really valuable becasue it's almost the same situation. Today I cleared up the situation with Samsung, if I want to be service under the warranty I have to bring the phone to one of repair centres in USA which it's kind of problem because I can do it only in the weekends but not impossible or what I'm doing tomorrow is to have an assessment by one of the repair centres in Toronto and I have to pay in this case, if it's something reasonable.
In my case I did not update the phone in 2 months at least so it's not software in my case, but one difference could be I got a new job 3 months ago, in my previous job the majority of the time I got 5 bars , I guess the cell tower was close to that place, and in my house the coverage it's good. In my new job, my office it's in the middle of the building, far from the windows, so the signal always was really bad, 0-1 bar.
Wondering if could be possible that a bad connection can burn the antenna or the circuit that controls the connection.
The other thing is there are many customers specially for the Galay S4 complaining about a similar problem, and I did not find any answer on how to fix this problem.
I'll post any update just in case it can help someone else.
Thanks.

Did you try to disable lte and use 4g/3g/2g only?
Sent from my SGH-T889 using xda app-developers app

darekz said:
Did you try to disable lte and use 4g/3g/2g only?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Well... I did... and the problem persists.

Try to enable and disable wifi calling.
Sent from my SGH-T889 using xda app-developers app

A also have this problem with T-Mobile Note 2 and have already tried everything you guys have...I guess I got no choice but to request a replacement which sucks because my phone was pristine and worked perfectly otherwise. It's just the damn weak to no signal that's driving me crazy. Especially since I'm paying for premium data coverage and it's pretty much money in the trash every month.

That's it. I made the call and the replacement arrives in a couple days. They offered me the "jump" program. Anyone on that? Is that worth doing on T-Mobile?

I traded an unlocked i317m for a g pro. I just picked up a unlocked t889 as welll. The person with my old i317m want my t889 since hes using simple mobile. Problem is when I went to trade I put his sim in my t899 it wont register on tmobile. Seems its only working with at&t as thats the service I have. Now with the i317m I gave him originally it works with any sim. How is this possible that a unlocked tmobile t889 wont register with his sim on tmobile network but the unlocked i317m works with any sim?

Yesterday I replaced the microUSB module that is connected with the antenna and replaced the SIM card module too.
That did NOT worked.
So... the problems is problably on the mainboard/chipset... too expensive to fix.
Another big hardware failure for Samsung's history.

I've had the replacement for about a week now. So far no signal problems. It's like when I first got my original phone. I'm sticking with the note 2 for at least another 6 months since I joined the jump program. Can't wait to see the note 3 next week

Update just to close this case
Well, after I sent the phone for repair to Samsung USA, I got it back and the problems happened again after a few days, then I sent it back for the second time to Samsung, got it back and the problem happened again after a few weeks. Basically, I'm getting rid of this phone, now the warranty is already expired and half of the time the phone was full of problems with the network.
The lesson in this case is to avoid getting hardware from the first batch (to wait a few months after the launch) or without a long term warranty (3 years), and probably will be my last Samsung device.
:crying:

Diesel-30 said:
Can't wait to see the note 3 next week
Click to expand...
Click to collapse
You mean Note 4, no?

Radio issues

Is anyone else having radio issues with their G-pro? AT&T model here and have been having very obnoxious issues with this device. I'm familiar with the common issues of losing 3g or 4g data while in buildings and such and have always had issues with my phones while in buildings but this phone is by far the worst so far. I'm not sure if it is only a network issue or this specific phone but I can barely get it to send and receive sms inside my house. MMS, forget about it. Calls get dropped immediately when I try to make them at home, etc... Last night I was driving home and on a phone call. Over the course of the 3 hour drive I got dropped at least a dozen times. I've never had these issues with a phone. Any suggestions? Should I try to get a warranty replacement or is this normal?

Could it be your SIM card? I have only had my phone for a week and haven't had problems getting a signal. However, on my old Galaxy Note, I had a similar issue and the SIM was to blame. Have you tried turning your phone off, taking out the SIM and reinserting it to make sure it's in there fully? You could also try cleaning the contacts (the gold part on the back of the SIM).
BTW...was reading your signature and had to LOL at the part about the Nokia Lumia. I tried a Lumia and only made it a month before Android withdrawals set in--so I sold it to help pay for my OG Pro.

Haha, yeah. I liked a lot about the Windows phone but just couldn't stick with it. I'm Android through and through!!!
I'll give that a shot or maybe get into the store and get a new SIM card today. Thanks for the suggestion!

Anyone....anyone...? Bueller....Bueller...?
Swapped the SIM and didn't fix anything. Wondering if it is an issue with the phone itself.