[Q] No 3G on SGS - Power Amp Defect ? - Galaxy S I9000 Q&A, Help & Troubleshooting

My Samsung Galaxy S can not connect to 3G
GPRS or WIFI is ok. Of course, APN is ok. Just when I switch Network Mode from GSM only to AUTO GSM/WCDMA or WCDMA only, my SGS looses connection completely, only WIFI active. Can not even use the phone to call or be called.
After several new Odin Rom flashes, send it back to Provider to get it repaired. Got it back with statement they replaced "IC Power Amp". Yes: It worked for 3 days...and now again no UMTS / 3G, phone only works when I put Network mode on 2G only...
Shipping it back takes another 3 weeks... I've been asking now for new phone... no luck yet... And wondering: does anybody here have an idea?

this is new to me
but it's a very interesting case indeed

Yeah, thanks for the reply though. I was afraid I have a special case on hand. Will keep posted if there is any progress.
I found the offending chip on Phonewreck, ( phonewreck.com; samsung-galaxy-s-teardown )
I can not believe the same chip fails twice. This must have some other cause..but what ????
Anybody heard of this chip (or problem) before? Am I really the only one out there?

Was fiddling around more. I got when I tried to apply update.zip, after pressing volup&home&power , a red error message:
multicsc : can not access to /system/csc/XEN/system/
Can this have anything to do with the problem ??

Still no...?
Oh, is it that nobody has an answer... or nobody reading this? I am still looking for a solution...
Will try to Reset phone to factory with the 3-key combo and ten reinstall the official Frodo. Maybe... you never know. It remains weird. Somehow I refuse to believe it really is a hardware issue... twice the same while about nobody else seems to have this???? Hmmm...

Nope, Frodo runs fine... except for the 3G issue. Still when I put it on anything else than GSM only, it will loose all connections...

Related

Cant find Network on Kaiser

Hi, I have noticed that a few have already complained about this issue
I'll tell you what happened to me:
I went on holiday from Israel to Jordan for 2 days.
My Kaiser did not roam as my sim wasn't open for Intl. Roaming so it couldn't find a network.
Also I did not charge it so the Battery went dead.
Following that two days I got home gave my Kaiser a full charge and could not get the network back.
I have done many Soft resets, 2 hard resets & spoken to HTC Help Desk.
The only thing HTC could tell me was to send the Kaiser to the UK for repair as they have not heard of this issue before.
Obviously I do not want to send it as I am sure it's not hardware but something else only.
My Kaiser was perched in the US (made in GB)
Network is Cellcom , which by the way I have tried other Sims in me Kaiser since this happened but with no success.
This issue is very frustrating as I feel helpless regarding this issue & I don’t know what to do
If any one has an idea ………….Thanks
Andre'
saper747 said:
This issue is very frustrating as I feel helpless regarding this issue & I don’t know what to do
If any one has an idea ………….Thanks
Andre'
Click to expand...
Click to collapse
First, try just removing the SIM card, then re-inserting it to see if the phone reconfigures itself. You may have to do a power on without sim card, before you re-insert it.
If that fails, do a hard reset so it goes back to factory default settings, then the inserted SIM card should set up the phone settings properly.
G.
Thank, but like I said before……
I have done 2 hard resets tried every way of rebooting with sim / without sim
Nothing works !
Thank, but like I said before……
I have done 2 hard resets tried every way of rebooting with sim / without sim
Nothing works !
hello saper747:
mine switched to flight mode and swap back,it cant find network any more,too,no matter hard-reset or flashing rom,its still.........
looks like we got the same problem, is yours telling "no sevice"? just a "!" on the service icon,right?
Sheng
I think this MIGHT be a bug/issue
I had this last week for almost 4 hours. I dont think the network was down but if it was then T-mobile did not state anything anywhere
I had reception all day and then suddenly around 5:30pm, I lost it and did not get it back until late evening
woohyuksheng said:
hello saper747:
mine switched to flight mode and swap back,it cant find network any more,too,no matter hard-reset or flashing rom,its still.........
looks like we got the same problem, is yours telling "no sevice"? just a "!" on the service icon,right?
Sheng
Click to expand...
Click to collapse
Hi , yes its the same problem
It shows the networks arround but it can't register to them only the !.. icon
This has nothing to do with the network carier as the sim works in all my other phones .
Hi i was wondering if anyone has a solution yet ?
woohyuksheng said:
hello saper747:
mine switched to flight mode and swap back,it cant find network any more,too,no matter hard-reset or flashing rom,its still.........
looks like we got the same problem, is yours telling "no sevice"? just a "!" on the service icon,right?
Sheng
Click to expand...
Click to collapse
I have THE SAME situation. I believe this is the bug which MUST be solved by HTC! Or at least by someone. I still haven't found the solution. Have anybody done??
Has anyone tried what happens when 3G is disabled (GSM mode)?
I'm having the same problem for the last couple of days in the UK with Orange, but when I switch to GSM (Settings->Personal->Phone->Band->Network Type = GSM) it works fine.
alt236 said:
Has anyone tried what happens when 3G is disabled (GSM mode)?
I'm having the same problem for the last couple of days in the UK with Orange, but when I switch to GSM (Settings->Personal->Phone->Band->Network Type = GSM) it works fine.
Click to expand...
Click to collapse
I tried to do that - no result. I have made hard reset - no result. I have dowloaded update WM6.1 from offical site HTC and installed it - no result.
Also, during two days, I calculated at least 20 persons who had this problem around the world. I can not believe that nobody researched this problem yet!
Me 2
I am also suffering from same issue.
My kaiser drop network at around 5PM till 1 hr approx, it hapeend for a week almost then I update radio then it was working ok, but still its not permanent solution.
Now a days my kaiser leaves network anytime and then it will not connect how hard u try, reset, hard boot, flash anything and after sometime suddenly it works.... magic.
I check sim with other phones its working gr8. but with this phone network gives trouble, I dont have 3G here in India, so its running on GSM.
Please somebody find solution, I'll post if I get any solution.
Thanks,
Dilip
Did you try with manual selection of mobile network (start->Settings->Personal->Phone->Band->Network)?
i did the network setting and put it as GSM and it works like a champ
BUT
i lost the 3G capabilities. One of the reason i purchase Kaiser is because the 3G capability.
using other Kaiser will give me a full 3G capabilities so i start wondering whether this is a hardware issue or software

Lose signal and doesn't come back ?

Often times I have noticed with my Tilt that I will lose the signal (simply by hitting a dead spot in the service), and it will not come back until I do a soft reset. First, it shows the indicator that it is looking for a signal, but after about 10 seconds it switches to an indicator with an exclamation point, showing no signal. It never regains a signal after that. Once we get to a place where I know AT&T service works, I will check my wife's phone at that very moment, and she has full signal. We're both on AT&T btw. I know it's not the service, cause her phone never does this. If she hits a dead spot, as soon as we're out of it her phone picks service right back up. I have the stock AT&T ROM that shipped with my Tilt.
Anyone have any ideas why it quits looking for a signal after it loses it?
jackjohnson said:
Often times I have noticed with my Tilt that I will lose the signal (simply by hitting a dead spot in the service), and it will not come back until I do a soft reset. First, it shows the indicator that it is looking for a signal, but after about 10 seconds it switches to an indicator with an exclamation point, showing no signal. It never regains a signal after that. Once we get to a place where I know AT&T service works, I will check my wife's phone at that very moment, and she has full signal. We're both on AT&T btw. I know it's not the service, cause her phone never does this. If she hits a dead spot, as soon as we're out of it her phone picks service right back up. I have the stock AT&T ROM that shipped with my Tilt.
Anyone have any ideas why it quits looking for a signal after it loses it?
Click to expand...
Click to collapse
Ive noticed the same thing.
Not sure of why this happens, but did find an easier work-around than soft reset.
If you go into your phone options, under the Network tab, you can manually tell the phone to search for the network.
I've also had that problem.
I'm not sure wich fix is faster, but using the Wireless Manager to turn the phone off and then back on also takes care of the problem.
hey, i also have that problem.. i'm using a tilt with one of dutythroys roms, with the new .17 radio.. thought maybe that was the problem cuz i never really noticed it with the .11 radio. btw, you dont need to soft reset, just give it a minute or two and it'll come back
omar
I noticed that after messing with KaiserTweak and enabling HSDPA. I live in Minneapolis where HSDPA is now enabled. However, I frequently travel west towards Alexandria, and once I leave the metro area, no HSDPA. If I don't go into the comm manager and disable 3G, I have no phone service at all. Once I disable 3G, I regain phone service.
Ok good, so I'm not the only one.
Thanks for the tip about turning the phone on and off in wireless manager, rather than doing a soft reset. That is, indeed quicker. However, we shouldn't have to do that at all.
I've noticed this a lot when driving home from work. I'm thinking that it's probably because at work I'm in a 3G area, and on the way home I lose it. Is there anyway to disable 3G altogether? Or does anyone know of a tweak that will keep the phone continuously searching before it gives up?
I have that same problem with my TILT, but I also had it with the 5150. It's been around for a while.
Bump again. C'mon people - you gotta give us something. Is no one else having this problem?
For the record, I didn't have this problem with the stock HTC ROM on a different phone.
Having this problem sometimes on a T-Mobile Vario 3, although mine seems to not recognise the sim card after it looses signal. I had thought it related to the phone being cold...
I have the same problems but only with 3G on. When I select GSM only no problems at all. I updated to .17 and wonder whether that's the problem since I don't recall any issues with .11
Thank the lord I thought it was just me. I made a thread about my blue tooth causing it but I realized it is my drive home that does it. I hit an area with no 3G and it goes out.
I have the 10 button comm manager installed and was wondering if that was the culprit. It is weird because EDGE will switch to GSM OR GPRS (not sure the correct name) when 3G is off but 3G will not switch to the others. Does anyone without the 10 button wireless manager have this issue.
Had similiar issues while traveling in certain parts of southern China. Try upgrading the radio from ver. 1.27.12.11 to 1.27.12.17. Follow this link for more info...http://forum.xda-developers.com/showthread.php?t=349528
I am redoing the phone back to the stock condition of how it arrived. I will tell you if it goes back to normal for me.
I will update you tomorrow becuase it is a certain part of downtown Houston that cuases it to go out .
I put the original OS/ROM I am not sure what you call it. For the first time in a long time it switched from 3G to EDGE. I wonder how many of us complaining have the 3G ten button communication manager. I will let you all know more tomorrow after my drive home from work.
bigsherv said:
I am redoing the phone back to the stock condition of how it arrived. I will tell you if it goes back to normal for me.
I will update you tomorrow because it is a certain part of downtown Houston that causes it to go out .
Click to expand...
Click to collapse
Did you see this thread?
http://forum.xda-developers.com/showthread.php?t=344273
can everyone who has this problem start posting their Radio Versions ... please
I used to have this problem with the Tmobile SDA (at that time it was driving people nutts) and that phone did not even have 3G. I did experience the same problem with Tilt (on tmo sim) Radio Version .11, and since tmo usa does not have 3G anyways, I just changed my phone band to GSM and the problem does not exist anymore.
Radio 1.27.12.11
Protocol 22.45.88.07H
in German o2 and T-Mobile network, problem persists after repair trial of HTC.
So 24 hours after redoing the phone back to its original state the 3g problem is gone. I watched it switch from 3G to edge to G all in 24 hours. I will keep you posted if it stays this way.
So basically the big change I had was removing the 10 button comm manager.
I was having a problem that I think is similar, or the same. When I travel from Edge to G my phone will ring and it indicates "connected" but I can't hear the person and they can't hear me. I soft-reset and the phone works again, until I travel back from G to Edge. I ended up reflashing to the original HTC Shipped ROM and I am waiting to see the results.
I am not sure of my radio version when it was flaky. I am using 1.27.12.11 now.
I've noticed the problem described in the original post maybe three times since I bought my TyTN II late in September. It's always been when I'm travelling that this happens. Fortunately I've not missed any calls as a result and switching to 'Flight Mode' and back to 'Phone' in Comm Manager (the standard HTC version) works around it for me. All a very standard setup here so I don't think the problem is a result of any customisations (although I do have HSDPA enabled in settings).

Loosing network signal

Hi!
After weeks of flawless function my Xperia can not find my carriers phone network.
I have updated the phone to the new ROM but that does not help.
The phone finds the SIM card and asks for the code.
Strangly it can connect to internet through my carrier (Tele2).
But I can not get a connection to the phone network and make a normal phone call.
Is something wrong with the phone?
NO, cause with another carrier (Telenor) everything works pefect.
Then obviously something is wrong with my carrier (Tele2) or the SIM-card.
NO, cause when I put my Tele2 SIM-card in another device (Ipaq 6515) it works perfect.
The Ipaq is not a 3G-phone. Can that have anything to do with it?
I'm getting lost here, all help is appreciated.
(ORIGINAL MESSAGE
Hi!
After weeks of flawless function my Xperia has started to lose it's phone network.
I notice it after I wake my phone up from stand by mode.
It doesn't help to turn the phone option off and on in Comm manager, but it has sometimes helped turning flight mode on and off.
Other times I had to restart the phone.
This happens a couple of times every day, after long times of not using the phone. I have not been able to trigger this problem, so I don't know what causes it or exactly when it happens.
Strangly it can connect to HDSPA while it has lost the phone network.
I have also experienced som freezes when I'm flipping between the panels to much.
All help is appreciated, thanks.
It would be helpful if you could give us more information.
What ROM are you using
Which carrier you have
etc.
mo.ammi said:
It would be helpful if you could give us more information.
What ROM are you using
Which carrier you have
etc.
Click to expand...
Click to collapse
I'm using:
ROM 1.02.936.3
Radioversion 1.06.25.29
The carrier is Swedish Tele2.
In Sweden we have GSM-900 and GSM-1800.
Tele2 also provide me with UMTS and HSDPA.
Today the problem became worse.
Even after repeated soft restarts it refused to find the phone network.
Then I change SIM-card to another carrier and it found the network.
I also tried the SIM-card that's giving me problems in another device. Works fine.
So both SIM-cards works. I'm now gonna go with the new carrier during the day to see if the problem come back.
If anyone have any ideas, please help.
krion said:
Today the problem became worse.
Even after repeated soft restarts it refused to find the phone network.
Then I change SIM-card to another carrier and it found the network.
I also tried the SIM-card that's giving me problems in another device. Works fine.
So both SIM-cards works. I'm now gonna go with the new carrier during the day to see if the problem come back.
If anyone have any ideas, please help.
Click to expand...
Click to collapse
All I can say that Xperia sometimes looks for the signal a bit longer it should IMO,
but I also know that carriers have many many problems usually and they're also often responsible for signal drops in some places too.
I know that 'cos I was talking to my carrier many times about it and learned something about it...
have u tried hard resetting the phone or re-installing the software? ..
if u run the sony update software it will give u the option to re-install your phones software - not sure if that has the same effect as a hard reset ..
probably worth trying
Amanox said:
have u tried hard resetting the phone or re-installing the software? ..
if u run the sony update software it will give u the option to re-install your phones software - not sure if that has the same effect as a hard reset ..
probably worth trying
Click to expand...
Click to collapse
Thanks for answering, I have now done a total reinstall and updated the phone to the newest R2... ROM.
The problem remains.
The phone finds the SIM card and asks for the code.
It can connect to internet through my carrier (Tele2).
But I can not get a connection to the phone network and make a normal phone call.
Is something wrong with the phone?
NO, cause with another carrier (Telenor) everything works pefect.
Then obviously something is wrong with my carrier (Tele2) or the SIM-card.
NO, cause when I put my Tele2 SIM-card in another device (Ipaq 6515) it works perfect.
I'm getting lost here, more ideas is appreciated. Tomorrow I will call Tele2 support.
Have you tried disabling 3G/HSDPA?
Chance that you have very poor 3G on your phone, whilst the IPAC is picking up ok 2G.
artesea said:
Have you tried disabling 3G/HSDPA?
Chance that you have very poor 3G on your phone, whilst the IPAC is picking up ok 2G.
Click to expand...
Click to collapse
Thanks for replying.
I disabled HSDPA/HSUPA in the advanced network menu. But it didn't help.
I also tried to choose GSM only in the phone seetings menue. But I could not even change the setting. Just got an error message about not being able to change the network (or something similar).
Is there any other setting that might be worth trying?
krion said:
Thanks for replying.
I disabled HSDPA/HSUPA in the advanced network menu. But it didn't help.
I also tried to choose GSM only in the phone seetings menue. But I could not even change the setting. Just got an error message about not being able to change the network (or something similar).
Is there any other setting that might be worth trying?
Click to expand...
Click to collapse
Having worked for several phone companies a few years at customer service I know what the procedure is.
-First thing they do is ask you to do a "crosstest", try your SIM in another phone and see if that works.
-You'll tell them that you did that and everything works fine when you use another phone.
-They'll automatically conclude that there's something wrong with your phone (correctly)
-They'll ask you if you could do a hard reset ( You did that too)
-Then maybe they'll try and reset the network (which almost never works)
Basically they'll have no other choice then for you to return it and have them look at the problem / replace your phone.
I don't think we here can help you with your problem
Good luck and keep us posted
Get a new SIM card. I've seen problems like this before, and an updated SIM card solved it.
The best way would be to test your SIM card in a similar phone, the ipaq not being close because it's not even 3G.
maedox said:
Get a new SIM card. I've seen problems like this before, and an updated SIM card solved it.
The best way would be to test your SIM card in a similar phone, the ipaq not being close because it's not even 3G.
Click to expand...
Click to collapse
I'm so confused right now.
Got my new sim card today, problem remains.
I call the carrier support and after they've looked the IMEI-number up they say that the phone is barred by an external operator. They won't tell me the reason and by what operator.
So I call the other carriers support and after they've done a IMEI-search they say that the phone is not locked in any way, by them or any other operator. After have been talking to Xperia support they come to the same conclusion. The phone is not locked but agree to that something is wrong, with phone or carriers, and they want me to try with a third carrier.
Final
I've handed in my phone to the seller and got another one back instead.
The end
Exact same problem
Howdy folks,
I have the exact same problem: My Xperia has worked fine for a month. Suddenly I can't register with Tele2 network (tried another Tele2 card as well that didn't work) for calling but have access to data channel so I can surf. Got told by the Tele2 support that my phone was fu**ed up. Got pissed off. Tried a sim for another provider (Telenor) that worked. Called the Tele2 support again. They noticed that I have an old (2g) sim, so they will send a new (3g) card to test if that fixes this mess. It should arrive late this week or early the next. Can't wait...
I'll keep you posted in this thread (or, if I should instead have made a new thread, a moderator may spank me and I will do better).
/Swedish Dave
Nope, new sim-card didn't fix it. But I have found at least one other xperia-user with this problem...
bad GSM signal
I have a X1
rom 1.03.931.10
radio 1.10.25.18
protocol version 52.56.25.29W
and since from the start I have bad GSM signal I have like 1-2 lines onli and it go up to 5line but onli from time to time (and then it drops again to 1-2line or none but If Itray to call is working or I get called but I can berly hear them bicose of the bad signal) on O2 network and in T-mobile is the same no mather wher I'm in town or outside of town; I'm in UK
is the phone damaged?? or...
sry for my bad english
My phone does the same thing
My x1 has had no problem with phone function or network. However, from the last week, the signal began to be lost sometimes, and the machine turned off automatically. and finally today, there is no signal at all.
MY SIM card works with other phones, so, I thought it might be software problem, and hard reseted with new rom. However, still no signal. It keeps looking. Does anyone have the same problem, and hopefully, solution?
I´m using my X1i with Tele2 as my service provider,but i don´t have any problems with signalstrength.. Works just fine..
speederTM said:
I have a X1
rom 1.03.931.10
radio 1.10.25.18
protocol version 52.56.25.29W
and since from the start I have bad GSM signal I have like 1-2 lines onli and it go up to 5line but onli from time to time (and then it drops again to 1-2line or none but If Itray to call is working or I get called but I can berly hear them bicose of the bad signal) on O2 network and in T-mobile is the same no mather wher I'm in town or outside of town; I'm in UK
is the phone damaged?? or...
sry for my bad english
Click to expand...
Click to collapse
I know I should've introdouced myself first, and that this is a strange first post, but:
HOLY SMOKES!!!
Xperia has FIVE reception bars????!!!!!
I always thought that 3 is the max value, since it only happened once that it went up to three bars, rest of the time it's maximum 2, usually 1.
I am also on Tele2 carrier, in Sweden that is, and since yesterday, I have no reception AT ALL.
Nothing.
Tried turning off 3G(or whatever it's called), nothing happens.
Tested with 3 other cards (one Tele2, one Telenor, one Telia) - all seem to be working okay. Except that the Tele2 one has slightly lower reception than the others.
Tested with 3 other phones as well - iPhone 3GS, Nokia 5800 Xpress Music, HTC Desire. All of them worked perfectly. Full coverage on that super-fast network thingy(the 3G symbol on iPhone).
Internet is just flowing on other phones - but Xperia is just falling behind in the most important section - reception.
Calls get dropped (2/3 of the calls), I must send same message at least 3 times in order to get it sent, Internet is crappy - if there's any at all.
Any kind of guidance is mostly appreciated.
P.S. A bit of those numbers which seem to be important:
Microsoft Windows MobileR 6.1 Professional
CE-OS 5.2.19608 (Build 19608.1.2.60)
ROM-version: 1.05.936.9
ROM-date: 04/19/09
Radioversion: 1.14.25.55
Protocol version: 1.0.11842.32680
Since all of you seem to have problems with one and the same carrier (Tele2) why don't you simply switch to another one? I once had a problem that was very alike the one described here and after several unsuccessful attempts of the carrier to fix it I simply switched to another one and all my problems were gone.

[Q] loosing Network Signal and it don't come back!

Hi Folks,
how in the topic, im loosing my signal at point where my signal is weak. if i lost it, i can run around to get it back to write messages or call someone. it doesnt work, because my phone say's "only Emergency calls". i wait one hour but the phone can't connect to my provider. The radio is at the moment 32.36.00.28U_4.06.00.12_7, i've already tried newer and older version of the radio img but always the same issue. From the beginning when i had the phone, it sometimes doesn't regognize my sim card, i have tried everything to get it to work (new rom or radio img) but always it fails. on the next day without any changes the phone works again with the same sim card. So now here is my question....... what the HELL can i do to bring it back to work, so it dont lose the signal in weak areas, and if the phone loses it, what shall i do to automaticly reconnect the phone automaticly to the provider. and airplane mode is no soloution for me. thanks for answer.
Have you tried another SIM card in there to see if the problem still occurs?
Sometimes the card itself needs replacing. Just a thought..!
this i havn't tried out yet, but i tried my actual sim card at the phone of my wife and it works a whole day without connection lose. I'm just thinking its a software problem maybe its the wrong radio version.
No "wrong radio version" will lose connection and fail to reconnect.
It's either your ROM or (most probably) HW problem.
You can try to wipe and install a clean ROM and see if the problem persists. If it does - use the warranty.
which rom would u suggest ? I tried CM6 / CM7 / MIUI nearly all modded roms here. The problem is to try out if the rom works i have to go out to a point where the signal ist weak, and hope for a signal lost. Sometimes it works and i get a reconnect to network and sometimes it doesn't work. in zones where the signal is strong i haven't any trouble. Did i get any problems by HTC if my phone is unlocked? I already had it gave to a repair 3 month ago with a broken usb connector and there was no trouble with warranty at unlocked phone but what is now? can they change their opinion ?
I got it. The Problem was the the Phone has to set the Network search to manual and not to automatic search. it works now for over 1 day and it seem that is now no problem with lost signal. Thanks for Help. But i just wondering why i have to chose manual network search an not automatic.

[Q] N7000 3G Radio failing

I've had my GT-N7000 for about a year. It has been rooted and running various ROMs since I had it and has always worked wonderfully. I had settled on CM 10.1 about a month ago. Since the last 3-4 days I noticed that my 3G signal showed no bars from time to time. Normally, just a quick 'airplane mode' dip and everything would be fine.
2 days ago was still having the same problem and I had to completely turn off and on again to 'maybe' get a signal. If I got a signal, it would only stay there for a few minutes and then disappear.
I changed the SIM card yesterday just to be sure but I still had the same problem. The same SIM card works perfectly well in my GT-I9000 running CM 10.1 as well.
I cleaned the SIM slot contacts, verified the internal antenna wire and even flashed a few modems and still have short lived and intermittent 3G signal. Any idea about what could be happening? Could it be the 3G radio failing on me?
Thanks for any help.
JF.
Anyone?
Does this happen after you move from one area to another? For instance from work to home or Vice Versa?
same problem
Hi there,
I've got the same problem than you. I got my Note 1 year ago, and since few days, I've a problem with the SIM.
On boot or reboot, the SIM is perfectly recognized and works good. I can call without problem, and can connect to the wifi without problem. The problem is when I use 3g, the SIM is not recognize after 1-2 minutes. I mean, I can access internet, do whatever I want, for just a minute or two. After that, the signal drop instantly. I tried:
plane mode: doesn't come back to normal mode cause the phone says there no SIM card
change modem: don't resolve the problem on all XX*** modem for JellyBean
change ROM: I was on German-leaked 4.1.2 Stock ROM, i tried 4.1.2 Switzerland ROM (where I live), 4.1.2 custom ROM and cynogenmod 10.1 (4.2.2). Always the same problem.
Tonight I'll try another SIM in the phone, in the case that the SIM is the problem.
otherwise, I don't know what else to try...
Blancoaguila said:
Hi there,
I've got the same problem than you. I got my Note 1 year ago, and since few days, I've a problem with the SIM.
On boot or reboot, the SIM is perfectly recognized and works good. I can call without problem, and can connect to the wifi without problem. The problem is when I use 3g, the SIM is not recognize after 1-2 minutes. I mean, I can access internet, do whatever I want, for just a minute or two. After that, the signal drop instantly. I tried:
plane mode: doesn't come back to normal mode cause the phone says there no SIM card
change modem: don't resolve the problem on all XX*** modem for JellyBean
change ROM: I was on German-leaked 4.1.2 Stock ROM, i tried 4.1.2 Switzerland ROM (where I live), 4.1.2 custom ROM and cynogenmod 10.1 (4.2.2). Always the same problem.
Tonight I'll try another SIM in the phone, in the case that the SIM is the problem.
otherwise, I don't know what else to try...
Click to expand...
Click to collapse
sorry to late reply for this old thread but i have the exact same problem now and i got here searching for solution..
how did you fix your phone please??
Salamonti said:
sorry to late reply for this old thread but i have the exact same problem now and i got here searching for solution..
how did you fix your phone please??
Click to expand...
Click to collapse
You're ****ed if it's the same problem! I tried a lot of technique and the one I warn you about is changing the RIL. Useless waste of time and ****ed up everything. At the end I tried an app available on the play store for thé modem, can't remember which one. But hey, you're on the track!
Good luck
Blancoaguila said:
You're ****ed if it's the same problem! I tried a lot of technique and the one I warn you about is changing the RIL. Useless waste of time and ****ed up everything. At the end I tried an app available on the play store for thé modem, can't remember which one. But hey, you're on the track!
Good luck
Click to expand...
Click to collapse
Are you sure it is the radio causing the problem and not the antenna? I know on mine, the USB charge port can be a real PITA when it
goes bad, and I had to buy about 3 before I found one that worked properly. With the wrong one, the radio signal would fluctuate all
over the place, so that's why I wonder if it could be a bad antenna/connection/board problem, since it is contained on the same
board as the USB port?
Blancoaguila said:
You're ****ed if it's the same problem! I tried a lot of technique and the one I warn you about is changing the RIL. Useless waste of time and ****ed up everything. At the end I tried an app available on the play store for thé modem, can't remember which one. But hey, you're on the track!
Good luck
Click to expand...
Click to collapse
p51d007 said:
Are you sure it is the radio causing the problem and not the antenna? I know on mine, the USB charge port can be a real PITA when it
goes bad, and I had to buy about 3 before I found one that worked properly. With the wrong one, the radio signal would fluctuate all
over the place, so that's why I wonder if it could be a bad antenna/connection/board problem, since it is contained on the same
board as the USB port?
Click to expand...
Click to collapse
I had an update..
I figured out that when i change the network mode to GSM ONLY it runs very well and never drops network signal or get the NO SIMCARD message..
but when i change the mode to AUTO or 3G/CDMA it drops network and gets NO SIM CARD after a few minutes !!
still don't know the reason & still searching
Let's talk about this problem. Mine is similar. Not getting errors with aim card but when i place or receive calls while in wcdma mode, conversation is normal at first place, then after few seconds i can not hear other side, and other side cannot hear me, sometimes that call ends and that is it. On gsm only, calls work normally, but internet is not working, while in wcdma internet works... pretty nasty issue. I tried flashing different roms, tried several modems to flash, problem is not disappearing, but from modem to modem i can see improvements. Sometimes it does not drop at all... can you help me with this?

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