Database Develop

JK3 modem, loss of all reception, drains battery, requires a reboot

So, right now I am using the Axura RC1 CE (I will update later), but I have had the problem described in the topic on various other ROMs using the JK3 modem.
It works fine for a few days (time is random, I have not been able to manually reproduce the issue), then randomly I lose all reception. Switching to flight mode fails, it gives no error, it just does nothing, in the notification bar it just says (searching). I have to reboot the phone to get the phone functioning again.
Anyone else experiencing this on ATTs network, or if there is a fix, I spent the last hour searching and going through the various threads to no avail (or I just suck at searching)..

Did you try the Axura thread?
Sent from my liberated Captivate via XDA App.

I'm having the same issue but I've tried Assonance as well and still get the random no service. Tried different i9000 modems as well--anyone know if its safe to use a captivate modem??? I'm guessing no but just want to know if anyone has tried it without borking the phone.

derek_h77 said:
I'm having the same issue but I've tried Assonance as well and still get the random no service. Tried different i9000 modems as well--anyone know if its safe to use a captivate modem??? I'm guessing no but just want to know if anyone has tried it without borking the phone.
Click to expand...
Click to collapse
I'm having this same issue as well, that's why I've tried to stay away from the UGJK3 modem, however, it's seems every custom ROM is starting to use it
As far as using a captivate modem with an i9000 ROM, I've tried that also, while it didn't totally brick my phone, I did get random FCs. I've read that is a dangerous path to go down.

I feel the same way. I might try the CogKernel and see if that helps...

Please, please, PLEASE do not post these types of things in Development.
Sent from my Captivate.

+1 Lets keep this forum area clean .. its just for development stuff guys.

I have had the same issue with all I9000 modems, the only fix that has worked for me is to enter the service menu and force WCDMA 850 Band only. Also, questions should be posted in the question forum.

[this thread is pretty relevant to development - considering the rom chefs are using this modem in their releases and it has a potential major flaw. if the mods find it better to be in Q&A, then please move it - otherwise, i think the right eyes will see it here]
yes, yes and yes!
ive been posting about it in the perception thread, but no one (save for 1 user) chimed in with the same issue.
we both noticed that we both have an issue where we will bounce from 3G to H and back fairly often. this leads me to believe that it could be part of the problem.
i just odin'ed back to stock because my phone isnt receiving incoming calls now.
what i had planned to do was flash the latest perception but use a different modem... but it seems like the only sensible modem is the JK3 (although there is word on the street a new one just leaked?). so that idea is kind of out.
someone here said they were going to try cogkernel2, but i was on setirons and cogkernel2 and it happened with both. it seems to be a modem issue.
i wanted to lock the phone to use 3G only to see if that would help, but no one shared a way how... but reading this post it seems i can do it from the service menu - though i dont know exactly what to set/change to keep it only on 3G. (any help would be great).
so i believe im going to flash perception 8 and see if i can lock it into 3g mode and go from there. this is getting pretty tiring. im hoping if a new modem releases that will help, but i honestly am not sure i can wait since it is making the phone unusable.
below are my posts from the perception thread on the issue.
--
keener31 said:
i searched but did not find...
i see others have had issues with APN force closing. i do as well, but assuming that isnt a problem, i dont mind.
my issue is that after a certain period of time left asleep, my phone will completely fall off the network. changing flight and data mode dont work, nor help. a restart works. this has started a day or two ago, but was not an issue for the first week (give or take). if it is relevant, my network constantly swaps between H and 3G where i live.
i have not found a setting to force 3g (and disable hsdpa) as i figured it was the network hopping that was doing it. am i just missing that setting? anyone else with this issue? (again, i saw people with the apn force close but not complete loss of network unrelated to initial flash)
also, i think that each build should get its own thread. it is VERY difficult to find accurate information on the current build once a thread has 4 builds and 250 pages in it. even with search, it would still be a good idea.
thanks and thanks.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
keener31 said:
anyone having this issue or have any ideas?
of note: going into wifi settings is also borked. it will eventually time out and FC. i also think that the times my phone has completely lost network and not reconnected have happened more often when charging. but that could be coincidence.
(mobile)
sghi897-perception b.5
Click to expand...
Click to collapse
this continued the same way on perception7 with cogkernel2. no real difference.

Ryukeima said:
I have had the same issue with all I9000 modems, the only fix that has worked for me is to enter the service menu and force WCDMA 850 Band only. Also, questions should be posted in the question forum.
Click to expand...
Click to collapse
in relation to my post below yours, does locking the 850 band only force the phone to use only 3G, or is HSDPA/HSUPA still enabled but you found the 850 band to be more stable.
this is what my next attempt will be to get a solid platform going.

I've tried different modems other than jk3 and it doesn't fix the problem. Stinks that you've used Cogkernel2 and it doesn't help. I also tried the different band selection in service mode and it also hasn't help me (apparently this worked for some people). If you want to give it a shot do the following:
1. Dial *#0011#
2. menu button then soft back key
3. then phone control -> network control -> band selection
4. good luck!

derek_h77 said:
I've tried different modems other than jk3 and it doesn't fix the problem. Stinks that you've used Cogkernel2 and it doesn't help. I also tried the different band selection in service mode and it also hasn't help me (apparently this worked for some people). If you want to give it a shot do the following:
1. Dial *#0011#
2. menu button then soft back key
3. then phone control -> network control -> band selection
4. good luck!
Click to expand...
Click to collapse
ugh. that is disheartening. i will try the band lock, thanks.
can you confirm or deny that when you notice your phone goes completely out of service that it has been hopping between 3G and H? it would be interesting to see if we all have that issue as part of it.
also, fingers crossed for that supposed new modem.
/sigh

Yeah this really sucks because these roms are great with this one very big exception. I haven't noticed the hoping before I need to reboot. I have noticed that if I switch into airplane mode once I drop service I can't turn it off.

I had the same issues with Axura and Percetion. I found that switching my network control to WCDMA 1900 only pretty much fixed it. The only problem I had after was that any time I lost service naturally, ie, bad area, or shielded rooms, whenever I came back into a good service area I could never get a signal again. So I would have to reboot.
In the end, I'm back on Cog, 2.3b7 and no issues for about 14 hours now.

bobbylx said:
I had the same issues with Axura and Percetion. I found that switching my network control to WCDMA 1900 only pretty much fixed it. The only problem I had after was that any time I lost service naturally, ie, bad area, or shielded rooms, whenever I came back into a good service area I could never get a signal again. So I would have to reboot.
In the end, I'm back on Cog, 2.3b7 and no issues for about 14 hours now.
Click to expand...
Click to collapse
gotcha. keep us posted on how that turns out!

glad to hear that that version of cog seems to fix the issue. which version did you get--oc or non-oc?

derek_h77 said:
glad to hear that that version of cog seems to fix the issue. which version did you get--oc or non-oc?
Click to expand...
Click to collapse
I'm using the non oc. I'm not gaming or doing anything too wild with my phone so non is just fine for me.

hmmm, makes me think that's the issue then. most of these roms have kernels that have the oc feature.

hey keener, did you have the oc version of cog?

derek_h77 said:
hey keener, did you have the oc version of cog?
Click to expand...
Click to collapse
sadly ive been running non-OC this whole time, so that doesnt appear to be it :/

Vodafone NL + Custom roms Incredible S

Hi Peeps,
Can some explain to me why al the non sense custom roms won't have a internet connection with this device and vodafone NL?
I would really like to find a fix for this problem. I quote the maker of the cyanogenmod rom.
"I think part of the problem is the RIL we are using."
Could someone help me get this fixed?
thanx!

freddyemmer said:
Hi Peeps,
Can some explain to me why al the non sense custom roms won't have a internet connection with this device and vodafone NL?
I would really like to find a fix for this problem. I quote the maker of the cyanogenmod rom.
"I think part of the problem is the RIL we are using."
Could someone help me get this fixed?
thanx!
Click to expand...
Click to collapse
Good, then I am not the only one
I really want to use MIUI but the because it wont give me a data connection (3g,H,etc.) stops me from using it further
I checked the "Monitor" app pre-installed with MIUI, and changed some settings with the firewall and the statusbar displayed a 3G icon, but it still didnt work.

Curiously, does it work for other people running MIUI/CM7 on different phones who are on Vodafone NL? I'm trying to understand if it's the radio or something that stock Android doesn't have that Sense/other providers do have. I am pretty sure it would work even if you install ARHD and run the no sense script.
I don't think it's the sense. It's either the radio, ROM kernel (?) or some other config in stock that MIUI/CM7 are picking up that Sense might have overwritten.
It's interesting, really
Works fine for me on Vodafone India but yeah, that doesn't help you

Only one thing to add, Vodafone NL comes in 2 variations: Vodafone NL and Vodafone NL Business which uses a different APN. For me Vodafone NL has not worked on CM7 but Vodafone NL Business does work (due to the SIM having corporate contract I guess)

Hi john,
Thanx for looking into it, i have tried different radio's and roms. Its not the card itself because it works flaweless in the htc legend with cm7.
It must be something that connects the radio with the software.. the developer of cyanogenmod for the incredible S was talking about the RIL (Radio Interface Layer)
cince it's not only a CM 7 problem i guess it has to do with something all the rommakers are using.

serious *yawn* as i mentioned like dozens of time yes it is the ril and yes there is a version from cm for the vodafone nl users, ask attn1 (and no they dont know what it is or how it should be fixxed atm)
end of discussion

lol relax dude, i don't own a incredible S that long and couldn't find anything about it on XDA... After that i asked another dutch users but he didn't know why it was not working..
I created this topic so new users like me can find a answer why a custom rom is not working on their phone at this moment. Hopefully they will crack it.

it's okey problem is most people dont do the research and just start asking, but no biggy...
just do what ive told you before, im sure attn1 is willing to help when he has the time

This problem with the RIL is this just vodafone blocking some RIL or is er a functional problem with this RIL and the vodafone carrier?
I don't know what to do, i would realy like to use a miu of cm rom without the sense.
Can anyone give me a hand? or a push in the right direction?

its the ril that has an issue with vodafone duhh...
its like i said before there is an version from cm that works with it...
so yes other roms are possible also, how? erhm... read back...

sorry for asking but i can't find that build of CM7 not on their website nor on XDA Developers. I just want to know what to do myself to rebuild a rom and make the appropiate changes to the RIL so it wil work.

contact attn1 mate

i have did that multiple times but i get no responsse of attn1

i'll upload some this weekend (not 100% sure which one was it but im sure you can test that out ), i currently switched to kpn cause of some connection problems i was having where im stationed...

finally got time to work on this issue
latest cm7 nightlies (#95) should restore support for this kind of sim
let me know if it work

Kali- said:
finally got time to work on this issue
latest cm7 nightlies (#95) should restore support for this kind of sim
let me know if it work
Click to expand...
Click to collapse
It works! You're a hero, finally CM on my IncS

Everytime i'm moving in The Hague, i lose my GSM and 3g signal.
Is that a known problem?? I am using Android Revolution HD 1.1.7
To get my signal back i have to go to airplane mode and then log in again with my pin.....

I have this issue on many custom roms on telus too.
how can you flash a new ril?

I'm dealing with the same error. the newest cm7 works fine. The revolution roms as well. (BTW I haven't noticed any issues in the Hague. as soon as 3g dropped all my colleague's 3g dropped as well on their Iphones.)
Unfortunately mobile network isn't working on most of the fancy 3.5 sense roms.
I posted about the vodafone issue in one of the sense 3.5 threads and got this reply as solution. Could anyone confirm whether these steps solved the problem?
ibrahimh said:
@nagoo
Found this might help you
This is actually simple to fix. My girlfriends phone was doing this a bit ago. After a bit of tinkering I found this to work. 1. Shut down your phone 2. Carefully remove the battery cover and battery from the phone. 3. Using a toothpick or something similar, depress the clip holding the Verizon/vodafone sim card in place and remove the card. 4. Replace your battery and turn the phone back on. 5. Wait about a minute, the phone may display a message saying somehting along the lines of "no sim card found, switching to CDMA" or something similar. 6. Turn the phone back off, remove the battery and replace the sim card 7. Completely re-assemble the phone and turn it back on. 8. Your phone should now show that you have Verizon as your carrier and all your phones functions should be restored.
Hope this works as well for you guys as it did for me.
I assume this is some sort of error with the phone recognizing which network is its default carrier. I also assume that verizon has some ort of deal with vodafone, a carrier in the Netherlands, that allows some of there phones to access vodafones gsm network if the verizon customer happens to be travelling. That would explain why they have a vodafone sim card in some of these phones. from my HTC Incredible S using XDA App
Click to expand...
Click to collapse
Sent from my HTC Incredible S using XDA App
Sent from my HTC Incredible S using XDA App

nagoo said:
I'm dealing with the same error. the newest cm7 works fine. The revolution roms as well. (BTW I haven't noticed any issues in the Hague. as soon as 3g dropped all my colleague's 3g dropped as well on their Iphones.)
Unfortunately mobile network isn't working on most of the fancy 3.5 sense roms.
I posted about the vodafone issue in one of the sense 3.5 threads and got this reply as solution. Could anyone confirm whether these steps solved the problem?
Sent from my HTC Incredible S using XDA App
Sent from my HTC Incredible S using XDA App
Click to expand...
Click to collapse
i am on Vodafone Egypt and i have the same problem and i tried this fix and doesn't work
some one help me

[Q] Mobile data connectivity issues, which radio?

Hi guys (and girls),
I'm going slightly mad trying to figure out a stable setup for my O2X. I have been switching between the latest CM7 nightlies, and MoDaCo FR19. In general, CM7 gives me quite frequent black screens, and FR19 seems quite stable. However, there is one issue that is present in both ROMs.
I am unable to get a stable mobile data connection when I switch from WiFi. Sometimes it works, and sometimes it doesn't. To get it to work again, it sometimes works to switch to 2G only (and possibly back again). I have tried several different radios recently: 218, 606, and 622, all with the appropriate RIL. The mobile data connection for 218 drops in and out at random without any clear pattern. For the other two radios switching on or off 2G only seems to achieve stable connection. However, it does not actually seem to affect whether I get a 3G or 2G signal. The display can say H or G, even when 2G only is checked. Bluetooth did not work correctly with 606.
To top everything off, the GPS does not seem to behave consistently for a all the different radio versions.
I guess that people have different experience with different radios, so which radio are the guys in Norway using? Do I really have to slog through every released radio and spend the day checking each one of them? Can I expect to find a radio/from combination that blacks to give me a stable GPS and mobile data connectivity, as well as good WiFi?
I know this has been discussed numerous times before, but people never seem to reach any conclusions. I'm just looking for advice on how to proceed to fix my problem.

I'm on cm7 .77 and i honestly havent had a blackscreen since i flashed it (yesterday morning) + battery is good now. For me this is the most stable nightly so ill stick with it for 2 weeks on my holiday )
Edit: bb .502 ril 218(i think) dont have any problems with network switching btw
Sent from my Optimus 2X using XDA App

kolaf said:
Hi guys (and girls),
Do I really have to slog through every released radio and spend the day checking each one of them?
Click to expand...
Click to collapse
You probably have to, yes. This sounds more like a problem with the specific coverage in your area and how the phone interacts with the cell-towers than an actual problem with the phone. You may be in an area with weak signals from several stations, you may be in an area suffering from sudden bursts of noise, there could be a lot of reasons for why this is happening.
First thing I'd try is to upgrade to the latest official firmware (10C - 0622 for Norway), just to have a baseline for comparison. In theory this firwmare (and baseband) has recently been validated by the norwegian carriers, and should have the best chance of success.
Then you should probably do a manual scan (in phone settings) for networks, and pick one manually.
Also try using the INFO menu (*#*#4636#*#*) and see if choosing a specific protocol helps.
If you're still unable to maintain a stable connection, I'd say that'd be grounds for returning the phone for a replacement.
Weak advice, I know, sometimes there just aren't any quick solutions.
::Trym

TrymHansen said:
First thing I'd try is to upgrade to the latest official firmware (10C - 0622 for Norway), just to have a baseline for comparison. In theory this firwmare (and baseband) has recently been validated by the norwegian carriers, and should have the best chance of success.
::Trym
Click to expand...
Click to collapse
Thanks for your reply. Do you by any chance have a link to the firmware?

kolaf said:
Thanks for your reply. Do you by any chance have a link to the firmware?
Click to expand...
Click to collapse
Sort of. In this thread http://forum.xda-developers.com/showthread.php?t=1035041 you'll find complete ROMs of the previous versions. Install one of those with SmartFlash, then run the LG Mobile Update tool to get the latest.
::Trym

Okay, I see, downloading now. So it is good enough to use one of the smartflash files, I don't have to use nvflash?

kolaf said:
Okay, I see, downloading now. So it is good enough to use one of the smartflash files, I don't have to use nvflash?
Click to expand...
Click to collapse
No, you don't have to use NVFlash. The advantage of using the smartflash method is that you get a completely "factory fresh" phone, with all the stock content present (movies, music, pre-installed apps) and you're sure to get a matching baseband and ROM.
Note that you have to flash both files, both the baseband and the ROM. The LG update tool won't update if you have a "new" baseband on an old ROM.
::Trym

So the firmwares from that post do not include the baseband? Anyway, I'm currently running baseband 405, so I guess this is sufficient to get the new update. And the new update will then overwrite everything to the latest official version, both ROM and baseband, correct?

kolaf said:
So the firmwares from that post do not include the baseband? Anyway, I'm currently running baseband 405, so I guess this is sufficient to get the new update. And the new update will then overwrite everything to the latest official version, both ROM and baseband, correct?
Click to expand...
Click to collapse
Yes, it does. Each firmware pack comes with TWO files, the baseband and the ROM. To make sure you avoid any trouble, just flash them both, though, as you say, you can probably stay on the one you have, as yes, the LG Mobile Update tool will overwrite both the baseband and the ROM with the new versions.
::Trym

Flashing of old firmware, with subsequent upgrade to latest release for Norway is complete.
I got version V10c, with baseband 1035.21_20110622, kernel 2.6.32.9. My mobile data seems to be enabled as soon as I get mobile coverage (which admittedly is poor right where I live). Even though it pains me, I guess I should leave it as stock for a day or so to see how it behaves.
I guess rooting it shouldn't affect performance in any way?
My initial experience is that it is much more snappy than the stock firmware that the phone came with, but time will show

kolaf said:
Flashing of old firmware, with subsequent upgrade to latest release for Norway is complete.
I got version V10c, with baseband 1035.21_20110622, kernel 2.6.32.9. My mobile data seems to be enabled as soon as I get mobile coverage (which admittedly is poor right where I live). Even though it pains me, I guess I should leave it as stock for a day or so to see how it behaves.
Click to expand...
Click to collapse
Yeah, you probably should, as your mission right now is to find out whether you can get a stable mobile data connection or not.
kolaf said:
I guess rooting it shouldn't affect performance in any way?
Click to expand...
Click to collapse
Not to my knowledge, but I'd still advise you to wait a few days while sorting out the connection issue. Not that I think rooting it would affect that one way or another, but if you can't get it work as it is, you can return the phone in the state it is now, factory fresh.
kolaf said:
My initial experience is that it is much more snappy than the stock firmware that the phone came with, but time will show
Click to expand...
Click to collapse
It certainly is. It also *stays* snappy over time, which can't be said for the 10a/b versions.
::Trym

The first test drive with the new firmware has been completed. On the way out it switched to mobile data flawlessly, but a longer drive it started falling out and reappearing for only short periods. When we stopped at the destination seemed to stabilise with a 3G connection again.
For the return trip I selected use only 2G network. The network connection remained stable for the entire journey.
I will have to test more, but the conclusion seems to be that it has trouble switching between the 2G and 3G networks when moving. I will try the same trip with a Telenor SIM card, and with different combinations of enabling 2G and 3G modes.
By the way, what is the difference between forcing 2G in the regular settings menu and in the special information menu?

kolaf said:
I will have to test more, but the conclusion seems to be that it has trouble switching between the 2G and 3G networks when moving. I will try the same trip with a Telenor SIM card, and with different combinations of enabling 2G and 3G modes.
By the way, what is the difference between forcing 2G in the regular settings menu and in the special information menu?
Click to expand...
Click to collapse
The 2G only setting in the phone menu equals the "GSM only" setting in the INFO-menu. I'm far from an expert in these matters, this thread has an overview: http://forum.xda-developers.com/showthread.php?t=675136& of what the different modes do.
::Trym

More testing seems to indicate that as long as i leave "use 2G only" check, my mobile data connection seems to be pretty stable. It even switches between 2G and 3G, although apparently a bit more conservatively.
I guess I get to keep my phone anyway
Now for some rooting...

Just an update on the results from my testing. The second time I went out my mobile connection never appeared. This was with only 2G checked in the settings menu. In the Info menu, this corresponded to GSM only.
I then changed it to GSM auto (PRL), and then I got my intermittent mobile data again. I then change it to WCDMA preferred, and my data connection seems to be stable for now. This apparently requires much more testing...

F another chapter in the connectivity saga. Having WCDMA preferred selected in the Info menu, things mostly work, although the data connection drops sometimes.
Another problem I'm noticing with the stock ROM is that it usually is unable to reconnect to my home WiFi network when it comes within range. I have the money was selected to reconnect. Sometimes I even find it disabled in the list.

Losing 3G Mobile Network on certain location

Hi Experts out there,
I have been having 3G mobile network issue with CM7 base ROM. On certain location, I cannot download and make or receive calls. my 3G icon arrows show upload activities but no download happening. My ISP name (Maxis Malaysia) showing as normal. I upgraded to CM7.2, tried Kang ROM, preshoot kernel and change new SIM card but doesn't help.
Disable and Enable the 2G only a few times might resolve the problem for a while. The may come back again as long as I am still at the same locations.
Anyone has any ideas on this problem? ROM or Kernel issue? Recommendations on solutions? Thank you.
Sent from my Nexus One using XDA

permai said:
Hi Experts out there,
I have been having 3G mobile network issue with CM7 base ROM. On certain location, I cannot download and make or receive calls. my 3G icon arrows show upload activities but no download happening. My ISP name (Maxis Malaysia) showing as normal. I upgraded to CM7.2, tried Kang ROM, preshoot kernel and change new SIM card but doesn't help.
Disable and Enable the 2G only a few times might resolve the problem for a while. The may come back again as long as I am still at the same locations.
Anyone has any ideas on this problem? ROM or Kernel issue? Recommendations on solutions? Thank you.
Sent from my Nexus One using XDA
Click to expand...
Click to collapse
It's not the phone. It's signal coverage that you're having problem. Try another location and see if that helps.

I have been getting full bar signal strength on the icon. If connected (after a few tries of enable / dissable 2G only), the connection will be good for a while (some time quite ok for hour). The connection on 2G is 100% stable and reliable. If 3G is weak, it should automatically switch to 2G without issue right?
Thank you for the reply.
Sent from my Nexus One using XDA

No. The problem could be with internet access of the specific UMTS base station that you're connecting to at that spot, and not with the connectivity between your phone and the tower. In any case, it's not your phone, it's the base station, and there's nothing you can do but complain to your cellular carrier.

I have checked with friends (iPhone, Android, BB,etc) surrounding me on the same location, no one is complaining the same problem. That lead me to confirm that its my N1. The worst part is I cannot make or receive calls. I have been missing many important calls...
Sent from my Nexus One using XDA

permai said:
I have checked with friends (iPhone, Android, BB,etc) surrounding me on the same location, no one is complaining the same problem. That lead me to confirm that its my N1. The worst part is I cannot make or receive calls. I have been missing many important calls...
Sent from my Nexus One using XDA
Click to expand...
Click to collapse
When did you have this problem? After or before you updated to the latest version of CM7.2? If after then I suggest you do a full wipe and format system and then reflash the ROM. Or you could try to flash a standalone kernel and see if that helps.

I have been having this problem foe
Sent from my Nexus One using XDA

I have been having this problem for many months. Since I rooted my N1 using CM 7.1.
Sent from my Nexus One using XDA

permai said:
I have been having this problem for many months. Since I rooted my N1 using CM 7.1.
Sent from my Nexus One using XDA
Click to expand...
Click to collapse
Another option would be to flash a different radio. Try to read the radio section on Nexus One thread for more information

I just flash MIUI ROM and will put it to test tomorrow. Hopefully it will be fine. If not, will try to flash different radio. Thank you for all the replies.
Sent from my Nexus One using XDA

Here's a couple solutions:
1) Go to settings>wireless>mobile networks >access point names. Look and see if an option called "Simple" is ticked. If it is, tick your network name instead of Simple. For example, for me, I have T-Mobile; so I have T-Mo ticked and not Simple.
2) Try flashing a new radio or ROM. I highly doubt this is your problem but it is worth a try. Try the .08 version radio or the .12, whichever you don't have.
3) Go to your carrier's store and see if you can get a replacement SIM card. I did this once and they gave me one for free. Just say you are having connection problems and you think your SIM is cutting out. My N1 once fried a SIM card. Just re-read post and seen that you did this. I would highly suggest you try my first option as I had a very similar problem and solved it that way.

Closed Source Project said:
Here's a couple solutions:
1) Go to settings>wireless>mobile networks >access point names. Look and see if an option called "Simple" is ticked. If it is, tick your network name instead of Simple. For example, for me, I have T-Mobile; so I have T-Mo ticked and not Simple.
2) Try flashing a new radio or ROM. I highly doubt this is your problem but it is worth a try. Try the .08 version radio or the .12, whichever you don't have.
3) Go to your carrier's store and see if you can get a replacement SIM card. I did this once and they gave me one for free. Just say you are having connection problems and you think your SIM is cutting out. My N1 once fried a SIM card. Just re-read post and seen that you did this. I would highly suggest you try my first option as I had a very similar problem and solved it that way.
Click to expand...
Click to collapse
SORRY IM HAPPY CAUSE THIS DOES WORK EVERYTIME DANG T-MOBILE GET AT&T TOWERS btw HAPPY EASTER EVERYONE leave me a egg

I have tried MIUI ROM and latest Radio (5.12) for passed few days. The problem still remain.
The new radio giving more stable 3G connection many locations but lost 3G connection on the previous problematic locations.
Really not sure what to do with it now. I have tried everything that is known on the web.
Sent from my Nexus One using XDA

There's nothing you can do. It's between your phone and local base station.
You didn't listen to me earlier, I guess now you will.

It is sad that nothing can be done. The phone should at least switch to 2G when 3G is not available, but my N1 stuck there causing me loosing voice and SMS capabilities. This is fundamentally wrong on the phone.
Sent from my Transformer TF101 using XDA

Wi-Fi dropping constantly

Hi Everyone,
As title says, a few weeks ago I noticed that my wifi keeps dropping no matter what I do.. this being as i surf and not in sleep mode or anything like that.
How did it start?
when it happened this is what i did, went to GB rooted rom, flashed up to JB room paranoid android, all worked fine except i noticed wifi kept dropping, tried another jb rom ,same thing, tried ics kingdroid rom, same thing. So then I decided to go back to original official stuff GB, same thing.. wifi dropping, went to official ICS, still wifi keep dropping.
What I have done to try to fix it:
Tried different roms, networks, all settings in Wifi settings. Googled like 3 days straight, mostly this seems to be a galaxy s3 problem not a galaxy note problem. A few people said they solved it by giving it a static ip which wouldnt work for me as im on like 3 different networks, and by changing sleep settings to make sure it doesnt shut off during sleep mode, which i honeslty have no problem with. Someone solved it by switching rom, nothing i find applies to me..
So what do I do??
I would honestly appriciate any suggestion, this is a great community so I got high hopes Sorry if my question has been answered before but I dont belive so, i posted in noob thread any noone had suggestion so I hope I dont do anything wrong with this post.. cheers :victory:

spiralpen said:
Hi Everyone,
As title says, a few weeks ago I noticed that my wifi keeps dropping no matter what I do.. this being as i surf and not in sleep mode or anything like that.
How did it start?
when it happened this is what i did, went to GB rooted rom, flashed up to JB room paranoid android, all worked fine except i noticed wifi kept dropping, tried another jb rom ,same thing, tried ics kingdroid rom, same thing. So then I decided to go back to original official stuff GB, same thing.. wifi dropping, went to official ICS, still wifi keep dropping.
What I have done to try to fix it:
Tried different roms, networks, all settings in Wifi settings. Googled like 3 days straight, mostly this seems to be a galaxy s3 problem not a galaxy note problem. A few people said they solved it by giving it a static ip which wouldnt work for me as im on like 3 different networks, and by changing sleep settings to make sure it doesnt shut off during sleep mode, which i honeslty have no problem with. Someone solved it by switching rom, nothing i find applies to me..
So what do I do??
I would honestly appriciate any suggestion, this is a great community so I got high hopes Sorry if my question has been answered before but I dont belive so, i posted in noob thread any noone had suggestion so I hope I dont do anything wrong with this post.. cheers :victory:
Click to expand...
Click to collapse
What's your modem? Go to settings > about> baseband

thanks for the reply it's n7000xxlrk , it's it suppose to be that?
Sent from my GT-N7000 using xda app-developers app

The operation of Wi-Fi is a core responsibility. Try changing the kernel. Modem is responsible for the connection to GSM. If you change the kernel does not help, you probably have a broken phone.

Gregs5 said:
The operation of Wi-Fi is a core responsibility. Try changing the kernel. Modem is responsible for the connection to GSM. If you change the kernel does not help, you probably have a broken phone.
Click to expand...
Click to collapse
well i have weak wi fi signal.. Most of the modems don't work for me.. Ddlp4 is the one i use..and no the kernel has nothing to do with wifi signal strength

Check your router and see if WPA Wireless network encryption is set to AES, if it is, change it to TKIP., see if you can connect after.
Usually it's nothing to do with the ROM, modem, kernel, android or even the phone itself, it might be your router setting that needs a change.

Know it was long since I made this thread but I wanted to report result, it was as above poster said. Rouer settings, finally found compatible ones after sooo manny roms, modems and other fixes were attempted.
Sent from my GT-N7000 using xda app-developers app

This same this also happend with me several tymss..just goo to dialer and dial *#*#526*#*# I m not sure that this will work on ur phone!!
Sent from my GT-S5830 using xda premium