[Q] G2x not working with tmobile sim - T-Mobile LG G2x

So I recently sold my g2x to a friend,he went and got a new sim from tmobile,and he says it wont work. He said it just says insert sim. Is this a known issue with the G2x? I never had any problems with my tmobile sim in the phone. Any help would be much appreciated

warhammer1966 said:
So I recently sold my g2x to a friend,he went and got a new sim from tmobile,and he says it wont work. He said it just says insert sim. Is this a known issue with the G2x? I never had any problems with my tmobile sim in the phone. Any help would be much appreciated
Click to expand...
Click to collapse
Check to see if the connectors under the SIM card are ok. That is a known issue.
Sent from my LG-P999 using xda app-developers app

i've had 2 bad SIMS which caused problems that went away when they were replaced.

Most likely cause is the Sim being inserted upside down or backward. Its easy to do.
Sent from my Nexus 7 using xda app-developers app

There is no physical problems with my g2x, but I've had issues where I've slid in until fully seated and had same error.
i gently and slightly backed the sim away from fully seated, and it started working. Ive had this issue several times, different sims. Sometimes I think it's a design flaw, or during the manufacturing phase, that slot was pushed out being made at what the factory deemed a safe manufacturing error fault tolerance.
G2x-CM7 Weekly 12/09/12 Build, Trinity T15 Kernel

justjackyl said:
There is no physical problems with my g2x, but I've had issues where I've slid in until fully seated and had same error.
i gently and slightly backed the sim away from fully seated, and it started working. Ive had this issue several times, different sims. Sometimes I think it's a design flaw, or during the manufacturing phase, that slot was pushed out being made at what the factory deemed a safe manufacturing error fault tolerance.
G2x-CM7 Weekly 12/09/12 Build, Trinity T15 Kernel
Click to expand...
Click to collapse
Yes, that could be the reason. Maybe slipping a piece of paper in on top of the SIM when it is installed will take up the slack if there is any.

Core Memory said:
Yes, that could be the reason. Maybe slipping a piece of paper in on top of the SIM when it is installed will take up the slack if there is any.
Click to expand...
Click to collapse
ya know, i never thought of that. getting it in there is prob gonna be a hassle. I'll try it next time I cycle my spare batteries. Running kernel battery test this cycle. lol
G2x-CM7 Weekly 12/09/12 Build, Trinity T15 Kernel
edit: now i do remember the first time i bought and used this phone i had this issue and was livid and going to return it, but than "adjusted " the sim card.

Related

[q] sim card

so i was using undead rom for a while now, and today surprisingly my sim card just stopped working. idk what the cause of this but it sucks i went through my whole day at work without a phone... does anyone know what cause the sim card to stop working?
btw im picking up a replacement tomorrow but i was just curious what caused it.
m0j09987 said:
so i was using undead rom for a while now, and today surprisingly my sim card just stopped working. idk what the cause of this but it sucks i went through my whole day at work without a phone... does anyone know what cause the sim card to stop working?
btw im picking up a replacement tomorrow but i was just curious what caused it.
Click to expand...
Click to collapse
Ive had 6 sim cards die on me. If you sim card is put near a magnet it will stop working or If you scratch it. Several things affect it. Sometimes things just break cause Its human made.
Sent from my Senseless Doubleshot using xda premium

Data speed icon?? Gone?? Invalid Sim sometimes??

Okay I have been having the t-mobile "invalid sim card" issue and the phone currently is running with the t-mobile carrier logo. I was able to make calls, and connect via WiFi. I am not able to access the web2go page when I select data in the "wireless & network settings" page with a check. I used to be able to at least access this page with wifi turned off and it would show a little 4g icon on the top? I will post some screenshots. I downloaded GeRIL just to see what it said? I think my phone is rooted? I ran superuser and said the phone was not but the last action I did before getting the t-mobile to show up was a zip restore with CWM so I assume it's rooted? Might be just a flash? One other thing is that I have the WiFi and GPS on and it does not appear to get my location for weather in the weather app?? I can open Google maps and GPS is within 60 meters of my location. I want to reboot the phone but am afraid it won't be back to normal and I will get the error "Invalid Sim Card" again? Is there anything or tests to run while the phone is on the t-mobile network I should check first before rebooting? Or files I should try to use or flash? Or any service menu codes to run diagnostics? Thanks in advance. I forgot to mention that I will be getting a replacement from t-mobile in a week, I did the online chat and they said they will send a replacement under warranty. The box has a date of 7/29/2011 so the phone is about 3-4 months old? The phone is unlocked and has been rooted before, but the issue happened days before I modded this G2x. Basically, today it could connect and tomorrow it might not...or If I reboot It usually goes to the "Invalid Sim Card" I have read other posts with issues of the same type from other users but found no solutions?? Baseband, RIL, Sim ect...all points to a bad phone(using t-mobile) because If I use any other carrier card in the phone it works without errors. That makes me think it's a firmware with t-mobile issue but I could be wrong? Hopefully if the replacement goes thru the same ICS 4.0 will be out and make this phone a beast again?
This might work or it might not: rename your APN manually (Settings/Wireless/Mobile networks/Access Point Names/edit) you can either edit or restore to default to restore mobile data connectivity. Try restoring to default.
I just accidentally hit Airplane mode and it killed it!!! Now it's back to the Invalid Sim Card error again...bummer!!!!
Wait a minute...I waited and read a few posts and clicked the Airplane mode off and on again and it came back to the t-mobile carrier..??? I still have not rebooted the phone though? Hmmm...should I?
Did you get a new sim card when you got the phone? I remember when I got this phone they told me not to use my 5 year old sim card from my previous phone. I say try a new sim card, if that doesn't work try to reset the apn with the instructions I posted last, and if that doesn't work it might just be a bad sim card reader.
I think more on the lines of a bad sim card reader...I have a new sim card...about a 3 days old, got it from t-mobile cause i had the older sim with the larger gold contact patch. The phone is already on order...they said 7 business days..
Same issues here
Sent from my LG-P999 using xda premium
This is a tricky subject to cover. I have been involved in a few discussions about this. I am unable at this time to post links to threads.(I am at work) if you pull up my profile on here and look at topic I have posted on should help you in the rite direction. Every thing you have listed in your open is covered in a discustion some where....it most likely is all barrier deep. if you need further help post back here. I will help as much as possible.
Can't you just do a hard-reboot? Hold down Power + Volume Up
Sent from my LG-P999 using xda premium
FatalityBoyZahy said:
Can't you just do a hard-reboot? Hold down Power + Volume Up
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
Yes some times that will work. Other times might take 2 reboots. Also sometimes toggleing airplane mode can bring back apn. After a few sim cards and all my problem went away. When I had the issue I was cm7 rom. Stock Rome didn't really seam to have this issue.
just to close this thread I already received my replacement phone from tmobile. I am no longer trying to track down the issue. Thanks for all of the replied and comments. every one who contributed will get a thanks from me.
sent from my HTC Inspire 4G Straight Talk Plan to XDA Developers
FatalityBoyZahy said:
Can't you just do a hard-reboot? Hold down Power + Volume Up
This is what I did to fix it whenever I was having this problem.
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
Yes doing a hard reboot will reset the Apn/data loss problem. (Also toggling airplane mode would some times reset it.) This is only a tempory solution as it could happen again. On cm7 rc1 it would happen to me at least once a day. As well as many others. Off of the top of my head it was something wrong in a radio file.(? Not sure what file) shortly after the release cm7 stable 7.1.0.1 was posted. I believe that had the patch for the data loss issue. It is possible that some cm7 based Rome may still have a data issue loss as they might not have the updated patch. At the time stock based Roms did not have the issue and as far as know. Some people faced with this issue could have had a faulty sim or phone. The other thing that was happening during the life of this issue was how many people running cm7 based roms didn't have the issue. I no longer have this issue. I followed the bug report that was submitted and sealed out the sim card twice. (I think it was cm7 issue on my device) OP- I hope that this swap works for you. If it don't, I will be more that happy to help. also thank you for your service.
I have posted what I know and can remember here in hopes that it can help some one else out in the future.
Sent from my LG-P999 using XDA App
When I had the phone I installed CM7, and the daily's...ect..It WAS a phone issue (hardware) I now have had the replacement phone for 1 week and no issues what so ever. That's not to say that the issue will arise again? I have rooted and am running no ROMs at the time but am thinking of going back to the FROYO 2.2 just to get the camera like it was in the older version. I hate the camera in GB 2.3.3. No zoom....c'mon LG..where did you guys lay down to sleep during this process if the development? One other feature that has nothing to do with the camera that I would like to see happen is to be able to enable a bluetooth mouse. I tried my Targus mouse and no luck. I think you can use a bluetooth keyboard but have none to test. I was thinking of shelling out the 160 smackers for the infared keyboard..small and can fit in your shirt pocket, and it's bluetooth.

addressing apn issue

tried t tried to posters in in the hard kernel thread but it says I need 10 or more posts so if some of it's because I was too lazy t it's because I was too lazy to rewrite it
The apn thing is not ignorance. I'm in Canada on wind. My phone randomly decides my sim card no longer exists and my apns vanish and adding a new one isn't possible .. well actually it is, if entered and saved the new apn or apns will show up whenever the sim card issue resolves itself along with the original 2 that vanished . There is no pin pointable cause or solution for the problem. I've had it Happen after wipes . Running nullifier, clean installs booting the phone and even with the screen on 2 seconds after being registered on my net work and blinking or taking my eyes off the screen.
There is nothing I can determine to be what actually causes it. Its happened to me on every rom . From Gb to the first builds of ics right up until now. Every rom aosp aokp kang cm9 and every kernel as well . SO DO NOT BEGIN TO MAKE INFURIATING COMMENTS TRYING TO SAY IT IS AT ALL THE FAULT OF THE USER which is causing it to happen.
And as far as I can tell there is no guaranteed solution . Sometimes it fixes if you back up thru cwm, after rebooting sometimes it fixes it but sometimes it doesn't . I've wiped nullified and done clean installs with kernels without kernels, from one rom base to a completely different rom base With out success of fixing the problem. Its ****ing brutal, and caused personal issues with my girlfriend or my family as well as work because my phone will for no reason **** off on me for sometimes hours at a time and leave me screwed .
So please do not blame devs, or other users for this happening .
Mods if this post should be else where my apologies please move it accordingly. This thread has had the most reports of this apn issue occurring so I wrote it here .
Anyway besides my rant wanna give credit to the dev of this kernel. Since 0604 I haven't had any issues at other then the obvious one. Everything is running great and battery life especially had drastically improved in the last build
Cheers guys.
Sent from my LG-P999 using XDA
So what rom/kernel are you using lol?
Sent from my LG-P999 using xda premium
I had the same problem with CM7. Just switched to Weapon last weekend and haven't had the problem since.
Also having the APN dropping issue. It seemed to be linked to whenever android process telephony would crash. Although as of recently, the APN is just not available. I am running AOKP 31, Harsh 1104. Sometimes its there... others its not. It is a know problem in ICS though.
Ok, for some of us, the apn issue is a rom/kernel specific thing. For you it sounds like a hardware issue. Check how snug your sim card fits, it could be disconnecting, or could have an internal issue related to the sim card connection.
Sent from my LG-P999 using Tapatalk 2
Dude im telling you that I've tried every combo of roms and kernels and no matter what sooner or later it happens.
Sent from my Transformer TF101 using Tapatalk 2
Chris.fowler said:
Dude im telling you that I've tried every combo of roms and kernels and no matter what sooner or later it happens.
Sent from my Transformer TF101 using Tapatalk 2
Click to expand...
Click to collapse
Klathmon said:
Ok, for some of us, the apn issue is a rom/kernel specific thing. For you it sounds like a hardware issue. Check how snug your sim card fits, it could be disconnecting, or could have an internal issue related to the sim card connection.
Sent from my LG-P999 using Tapatalk 2
Click to expand...
Click to collapse
please at least read the posts when we try to help

[HELP] Nexus S i9020A - TouchScreen Issue

Hello everyone,
im new here,
I just bought Nexus S from some1,
it had a problem which later showed up.
The touchscreen works all by itself suddenly,
the left part of the screen is misbehaving, it starts touching on screen when its not.
it was on GB when i bought, then i updated it to ICS to see if the problem gets fixed but it gets more crazy, now updated to Jelly Bean, worked fine for a while, but now again its starting.
Any help will be appreciated
I think it is a problem with your touch screen hardware and not the android software. That being said, unless someone else has had the problem, no one can really help you.. Personally, since I've never heard of this problem, I'd recommend you get it repaired, even if it costs some $$. Hopefully someone else who has had the problem can help you out, but until then, best of luck!
FirePoncho86 said:
I think it is a problem with your touch screen hardware and not the android software. That being said, unless someone else has had the problem, no one can really help you.. Personally, since I've never heard of this problem, I'd recommend you get it repaired, even if it costs some $$. Hopefully someone else who has had the problem can help you out, but until then, best of luck!
Click to expand...
Click to collapse
first of all, thank you very much for replying,
Is there any way to fix it? there is not a single scratch on screen, phone is like gud as new, no bump, no scratches.
I wonder wat is making screen to hit by itself.
any way to fix it?
do u think its the digitizer troubling??
Raptor9142 said:
first of all, thank you very much for replying,
Is there any way to fix it? there is not a single scratch on screen, phone is like gud as new, no bump, no scratches.
I wonder wat is making screen to hit by itself.
any way to fix it?
do u think its the digitizer troubling??
Click to expand...
Click to collapse
take a backup and format sdcard, copy fresh rom to ur sdcard and flash it again may be it works.
abhidoT38 said:
take a backup and format sdcard, copy fresh rom to ur sdcard and flash it again may be it works.
Click to expand...
Click to collapse
Already tried all flashing. nothing helped.
but recently i did some wierd things with phone,
i burned my nexus s screen side, not actually burned it, but kept it to a distance from fire, just to heat it up,
i thought if there was any moisture that was causing the trouble might end up from burning,
after the phone cooled down, i placed battery and started phone..
wow amazing... it worked fine!!
but in the next step i inserted SIM card, i was going happy and was thinking "oh yes... saved the day!!!"
but boom, touchscreen started misbehaving again!!!!
i removed SIM card, but problem persists!!!
sad...
but i tried again,
removed battery and sim card,
burned phone again with more temperature as i was angry, wanted it to burn completely, but i guess i saved it.
now currently, without the SIM card, phone is working perfect as it was.
I dont know wat it has to do with the SIM card or burning
any1 knows wats its problem?? how can i use my SIM card with phone now???
Raptor9142 said:
Already tried all flashing. nothing helped.
but recently i did some wierd things with phone,
i burned my nexus s screen side, not actually burned it, but kept it to a distance from fire, just to heat it up,
i thought if there was any moisture that was causing the trouble might end up from burning,
after the phone cooled down, i placed battery and started phone..
wow amazing... it worked fine!!
but in the next step i inserted SIM card, i was going happy and was thinking "oh yes... saved the day!!!"
but boom, touchscreen started misbehaving again!!!!
i removed SIM card, but problem persists!!!
sad...
but i tried again,
removed battery and sim card,
burned phone again with more temperature as i was angry, wanted it to burn completely, but i guess i saved it.
now currently, without the SIM card, phone is working perfect as it was.
I dont know wat it has to do with the SIM card or burning
any1 knows wats its problem?? how can i use my SIM card with phone now???
Click to expand...
Click to collapse
i think the burning issue it was sim problem did u try another sim card? lolzs
abhidoT38 said:
i think the burning issue it was sim problem did u try another sim card? lolzs
Click to expand...
Click to collapse
tried another, no luck
Ok there was another problem, some part of left side of screen is not responding on touching,
previously i flashed a kernel which fixed the issue,
now i don know which kernel was it, lost it,
can any body help me on this issue?
miracle happened
yo guyz i cant believe it... everything is fine now.. phone works with sim too... i guess burning did help... and gues wat.. that left part of screen which was not responding.. its fixed by netarchy kernel.. i m currently using GB 2.3.6 with netarchy kernel.. can any1 give me Jelly Bean ROm? i tried some JB ROM but status 7 error occurs.. need help
Raptor9142 said:
yo guyz i cant believe it... everything is fine now.. phone works with sim too... i guess burning did help... and gues wat.. that left part of screen which was not responding.. its fixed by netarchy kernel.. i m currently using GB 2.3.6 with netarchy kernel.. can any1 give me Jelly Bean ROm? i tried some JB ROM but status 7 error occurs.. need help
Click to expand...
Click to collapse
you can update like this, one by one to get force update jb.. this trick works for me like charm http://bit.ly/Ok1EHa
Problem is back... and i think i found wat is troubling, its the SIM card, when i insert SIM card it does troubles, but when i use airplane mode, everything gets better.
tried different SIM cards, but no change.
so guyz tell me possible fix of the SIM card?
noticed another problem,
phone takes a very long time to recharge
and when i plug the recharger, sometimes battery indicates 10% or more Additional battery suddenly
i don understand wat is the problem?
Battery? Recharger? or SIM Slot??
im getting crazy now!!
Finally Its Fixed without spending any money
it seems baseband was troubling... as it was something like this i9020A this A is meant for AT&T thus its preferred network was WCDMA (my network is only on GSM).. i saw a code to see my phone info.. *#*#4636#*#*
This code showed up a window where i saw a button called radio... i switched it off.. i thought it was meant for FM Radio lol.. but it actually turned off my Cellular network.. i turned it back on and then i saw that the problem was gone... i went to see baseband and now its I9020XXX .. that A is gone..
Issue is fixed but there is one thing i don't understand at all.. how did fixing radio band fixed the touch issue? I think this conflict was causing Operating System to go crazy, hardware was never at fault..it was all software confliction.. I'm very happy its fixed..
If some1 have the same issue go here
*#*#4636#*#* turn radio off then turn on again.. hope it helps..and if it doesn't then at least it helped me
Sent from my Nexus S using xda app-developers app
I have a Nexus S and I have the exact same problem since last few days. I enabled "show touche" from the developer options to track the screen touch. Now I can clearly see that one column on the left side of the phone gets a random series of touches (in that one column only) from top to bottom. The issue I think is a HW issue, nothing to do with sim card, or ROM or anything related to SW. I have tried GB, ICS, JB and even "touch" version of the clockwork. It happens even in clockwork. It seems to me that I need to buy a Galaxy nexus unless someone knows of an easy way to fix this.
Same Problem
Hey man,
I got the same problem.
I tried so much things but it's absolutely a hardware problem, I found on the internet that there is some netarchy kernel modified by someone, but that's not up to date anymore. The kernel only works with a old version of android.
I update my android almost every month, it helps a bit but not much.
I am trying to learn all about building and modifying roms and kernels, but that is not that easy as I thought so that will take some time before I can publish a kernel for you.
Maybe if you can building kernels, try it by yourself?
Or google Nexus s unresponsive touchscreen, i found there some helpful answers. But they all not really up to date.):
I hope you'll find a way!
Sorry for my bad English​

Sim card reboot

So I recently switched to the new Baked ROM and everything has been working very smoothly until I had a message pop up saying unable to detect sim card please reboot to connect to network. Ive rebooted quite a few times and the phone will be fine only to have the issue pop up again. Today alone its happened about 5 times I had a similar issue with liquid smooth ROM as well, not as much as now though.I've notice it happens most of the time when I'm in areas that I get a weak signal, is there any way to fix this or atleast insure it doesn't happen as often?
I've reinstalled the ROM and wipe cache/delvik cache and it works for a bit then pops back up.
Thank you all for whatever input you have!
igooner14 said:
So I recently switched to the new Baked ROM and everything has been working very smoothly until I had a message pop up saying unable to detect sim card please reboot to connect to network. Ive rebooted quite a few times and the phone will be fine only to have the issue pop up again. Today alone its happened about 5 times I had a similar issue with liquid smooth ROM as well, not as much as now though.I've notice it happens most of the time when I'm in areas that I get a weak signal, is there any way to fix this or atleast insure it doesn't happen as often?
I've reinstalled the ROM and wipe cache/delvik cache and it works for a bit then pops back up.
Thank you all for whatever input you have!
Click to expand...
Click to collapse
I have personally never encountered this, nor have i read about anyone else with this issue. Have you tried reseating your sim card?...
exad said:
I have personally never encountered this, nor have i read about anyone else with this issue. Have you tried reseating your sim card?...
Click to expand...
Click to collapse
I'll have to check the sim. I have a friend that has had similar issues but not as bad with aokp. Thanks for the idea!
igooner14 said:
So I recently switched to the new Baked ROM and everything has been working very smoothly until I had a message pop up saying unable to detect sim card please reboot to connect to network. Ive rebooted quite a few times and the phone will be fine only to have the issue pop up again. Today alone its happened about 5 times I had a similar issue with liquid smooth ROM as well, not as much as now though.I've notice it happens most of the time when I'm in areas that I get a weak signal, is there any way to fix this or atleast insure it doesn't happen as often?
I've reinstalled the ROM and wipe cache/delvik cache and it works for a bit then pops back up.
Thank you all for whatever input you have!
Click to expand...
Click to collapse
I posted about experiencing this in the AOKP forum. I was receiving a puk error on viper. Att gave me a new sim. From there I started was getting the sim inserted error Reboot. Tried flashing AOKP yesterday to see if that would fix the issue. It didn't. Went to att store today and the only thing they said was asking how I liked 4.2.2. No help at all. I am going to just claim insurance on this phone I guess
Sent from my One X using Tapatalk 2
moehagene said:
I posted about experiencing this in the AOKP forum. I was receiving a puk error on viper. Att gave me a new sim. From there I started was getting the sim inserted error Reboot. Tried flashing AOKP yesterday to see if that would fix the issue. It didn't. Went to att store today and the only thing they said was asking how I liked 4.2.2. No help at all. I am going to just claim insurance on this phone I guess
Sent from my One X using Tapatalk 2
Click to expand...
Click to collapse
Interesting, I just went back to jellybam 6.7 and haven't experienced it. I've used it before and it seems like its the only ROM I can use at this point.
So after some research I found out that the sim issue happens due to the sim tray/sim card not fitting properly so it's not the ROMs that's are effecting it. Simple solution was to put a layer of tape on the front side of the sim card to thicken it. (this would be the non metallic side) and all would be well. I did it last night and went back to the Baked rom and so far no issues in the past 24 hours.
Sent from my One X using Tapatalk 2
igooner14 said:
So after some research I found out that the sim issue happens due to the sim tray/sim card not fitting properly so it's not the ROMs that's are effecting it. Simple solution was to put a layer of tape on the front side of the sim card to thicken it. (this would be the non metallic side) and all would be well. I did it last night and went back to the Baked rom and so far no issues in the past 24 hours.
Sent from my One X using Tapatalk 2
Click to expand...
Click to collapse
As expected. Glad things are working.
Just curious, for those that are having this issue are your devices new or older devices? I had a release day one x that never had problems. My current device with problems is only about a month old.
Sent from my One X using Tapatalk 2
I bought my device in December and just now started having issues.
Sent from my One X using Tapatalk 2
FWIW my hox had this sim card error from one moment to the next but never recovered and no amount of tape or new sim cards fixed it. Its got nothing to do with the roms, its a hardware issue. I left it at a cell phone repair site since i had no warranty on it, hopefully they can fix it. I called att to cancel my line and to my surprise they offered me a warranty replacement even though i never bought that phone from them. If my hox cant be fixed ill still have the replaement coming in but id imagine its got jellybean already so im going to go into withdrawal without a rootable device.
I put tale on the back of mine and it has yet to have a problem for a few days now
Sent from my Nexus 7 using Tapatalk 2
I did one small layer of tape and I can honestly say I haven't had the issue since. I was getting the error before on a daily basis at least two - four times a day but hasn't happened since.
Sent from my One X using Tapatalk 2
Some SIM cards are being manufactured too thin. This has been a known issue since the phone launched. Scotch tape trick or get a new SIM card.
Sent from the HOXL dimension of S-OFF

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