Develop Bugs

T-Mobile HTC G2 "Unable to connect to network"

EDIT: Just got off the phone with T-Mobile Tech Support, they tell me theres nothing more beyond a Factory Reset that could help the issue, and seeing as I've already done a factory reset a few times to no avail, I should look into getting my money back for this device.
Okay, so I purchased an HTC G2 from ebay. I know this was my first error in judgement, but I have a limited budget so i took what i could get.
Anyways, I currently have T-mobile on my Unlocked Iphone 3GS, but I've grown tired of Jailbreak problems and using 2G data speed.. So i Found this phone on Ebay, and purchased. when I got it, I quickly popped in my already active SIM card and got NO SERVICE, looked around on the phone and found the Network Settings, went to 'Network Operators' and searched for a network. T-Mobile and AT&T shows, but does not connect to either. when I inserted another T-Mobile SIM card, the same error shows. ( thought maybe my SIM was too old to receive 4g or some BS like that.. lol)
anyways, I dont need to Unlock my phone, I dont plan on using it on any other provider or in any other country. All i want is for it to work with T-Mobile, in america. is there anything I can do? or should I just send it back to the Ebay seller.
any information needed, let me know and I can get for you.. its running:
Android 2.3.4.
Baseband: 12.62.60.27U_26.13.04.19_M
Kernel: 2.6.35.10-g96de068
[email protected] #1
2.16.531.5 CL159515 release-keys

Is try a factory reset. Re insert sim. If still doesn't work call t mobile support. If still no go file an eBay complaint and send back broken phone for a refund.
Sent from my HTC G2 using xda premium

Okay, thanks I'll try that right now.
Also, do you think T-Mobile will offer support to me, although i did not purchase the phone directly from them? They got testy with me a while back when I was having issues with the Dash.

Okay, so I just tried both Soft and Hard factory reset and neither worked. re-inserted SIM and still get either "this SIM is unsupported" or "Unable to connect to this network"
I also get an Alert on the Drop-down menu that shows " the network (T-Mobile) is Unavailable.

byrd1bo1 said:
Okay, so I just tried both Soft and Hard factory reset and neither worked. re-inserted SIM and still get either "this SIM is unsupported" or "Unable to connect to this network"
I also get an Alert on the Drop-down menu that shows " the network (T-Mobile) is Unavailable.
Click to expand...
Click to collapse
How old is your SIM? The G2 uses a newer SIM; go ask for a new SIM at your local store
Sent from my HTC Vision using XDA App

OriginalGabriel said:
How old is your SIM? The G2 uses a newer SIM; go ask for a new SIM at your local store
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Thanked you instead of quoting! Oh well, this was useful advice actually.
He is right - I had to get a new sim card when I got my g2 in order for it to function as a phone!

Oh, see then I suppose I wasnt wrong in thinking that then. so, If I go to a T-mobile and just get a newer SIM card, all should be well?

OriginalGabriel said:
How old is your SIM? The G2 uses a newer SIM; go ask for a new SIM at your local store
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
My SIM is about a year old, I also tried my sisters SIM which is a bit newer and receives 4G on her LG Optimus, I can still try to get a new SIM though, my question is if its free or not?

byrd1bo1 said:
My SIM is about a year old, I also tried my sisters SIM which is a bit newer and receives 4G on her LG Optimus, I can still try to get a new SIM though, my question is if its free or not?
Click to expand...
Click to collapse
yes its free just tell them the sim is malfunctioning

Thanks, but after talking with T-Mobile tech support, we've found that my sim is up-to-date enough to receive 4g, and if its working in another phone then thats not the issue. it appears that the phone itself is malfunctioning in some way that prevents it from receiving any network. I've contacted the Seller and she's agreed to a refund. this is a real disappointment but its the only option left for me.
Unless anyone knows how to fix the problem of the G2 not accepting any network. After some research I've found this to be a common problem after an attempted Unlock of the device that went wrong. but, I've found no clear solution to it. Just alot of people complaining about it. I didnt attempt any unlock of this device, nor did I buy an Unlocked device purposefully.
the sad part is, I've only had the phone for two days, with NO SERVICE and i still love the device. IF i could find a more trustworthy dealer, without spending close to $100 more than I already spent, I'd love to use it.

Unlocked GSM Galaxy Nexus - No signal al all

Hello,
A bit about my Nexus: Bought it online, it's the Domoco version, unlocked, rooted and been using just fine with many custom ROMs.
So yesterday morning, I was talking on the phone with a friend without any problem. After hanging up for a few hours, when I was about to call someone else, I realized my phone didn't have any signal at all. And it has been like that until now, about 48 hours.
It happened so suddenly without any warning. The phone has never been dropped and everything else working just fine.
So here's what I have tried:
- Restart the phone (multiple times)
- Batter pull (multiple times)
- Factory reset the phone (multiple times)
- Wipe cache and dalvik cache in CWM (multiple times)
- Downloaded SetCPU and set the minimum to 700Mhz (instead of 350Mhz)
- Reflash the ROM and tried with other Custom ROMs (I tried Xenon, Xylon, PA, and Carbon ROMs)
- Reflash the Radio and tried with other Radios too (I tried UILH1, XXLH1, SC04DOMLE3 and some others ...)
- I also went to Tmobile and request a new sim card - same problem.
- I borrowed a sim card from another Tmobile customer to try it on my phone - no signal - but the sim card works just fine on his phone.
I ran out of thing to try and I dont understand what happened ... anyone has an idea or something else for me to try ?
Anyone experience this before ?

Welcome too my hell. I have a playstore one now but my first Gnex was an international one and it has this same issue. Its a PCB problem a warranty would fix. I'm near Chicago and a few people have told me there is an electrical engineer downtown that fixes stuff like this. I don't have a price but I think something like this is your only option. Mine sadly is still a battery charger:thumbdown:
Sent from my Galaxy Nexus using xda premium

I know it sounds stupid, but have you tried toggling airplane mode? I run into the occasional loss of signal when im at work [fair to weak signal in the big metal box], and a reboot is the only thing that fixes it for me. Mines a play store model.

bodh said:
I know it sounds stupid, but have you tried toggling airplane mode? I run into the occasional loss of signal when im at work [fair to weak signal in the big metal box], and a reboot is the only thing that fixes it for me. Mines a play store model.
Click to expand...
Click to collapse
Ah yes, I actually did try that too but forgot to mention. I tried toggle airplane mode on and off, also the 2G only mode on and off. But it didn't help with anything.
Thanks for the suggestion.
JediDru said:
Welcome too my hell. I have a playstore one now but my first Gnex was an international one and it has this same issue. Its a PCB problem a warranty would fix. I'm near Chicago and a few people have told me there is an electrical engineer downtown that fixes stuff like this. I don't have a price but I think something like this is your only option. Mine sadly is still a battery charger:thumbdown:
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
So I guess I have to look for an electrician then, cause I have this phone just a little bit over a year so warranty is a no go for me.
Thanks for the idea.
PS: anyone else has more option for me ? I just wondered if I have bricked my phone ... cause I flashed lots of diff. ROMs to try out but never gotten a bricked phone before, could this be a bricked phone ?

Bricked refers to a phone that does what a brick does: nothing. It doesn't boot, it does not light or attempt to boot, it does nothing. This is a signal issue..I have no prior experience with docomo, but this thread came up on search: http://forum.xda-developers.com/showthread.php?t=1574018, maybe it'd be helpful. Have you converted it to yakju or takju and tried a google factory image?
And this: http://forum.xda-developers.com/showthread.php?t=1554150. If it is a circuit board, it kinda looks like s.o.l., and im sad to say that to you.

I wanted to let you know that I experienced the same issue. I bought the unlocked Docomo Galaxy Nexus, and had it working fine on T-Mobile for half a year, and then suddenly had no signal on Tuesday. Nothing I did - factory reset, battery in and out, sim card in and out - could fix it. Have you tried using different sim cards in your phone to see what works and what doesn't?
I figured out that my phone will accept AT&T, and actually does connect to T-Mobile while roaming (I used an international sim card). But, my phone will say "Cannot find mobile network" when any T-Mobile sim card is inserted.

chowabbajack said:
I wanted to let you know that I experienced the same issue. I bought the unlocked Docomo Galaxy Nexus, and had it working fine on T-Mobile for half a year, and then suddenly had no signal on Tuesday. Nothing I did - factory reset, battery in and out, sim card in and out - could fix it. Have you tried using different sim cards in your phone to see what works and what doesn't?
I figured out that my phone will accept AT&T, and actually does connect to T-Mobile while roaming (I used an international sim card). But, my phone will say "Cannot find mobile network" when any T-Mobile sim card is inserted.
Click to expand...
Click to collapse
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.

wocman said:
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
Click to expand...
Click to collapse
I know others who bought their GNEX through the Play Store and those work just fine with T-mobile. I tried their sim cards in my phone and it doesn't work. I don't think T-mobile is intentionally blocking the docomo phones, because I'm getting T-mobile through roaming, when I use an international sim. My guess is they're doing something to the cell network that just somehow leaves our configuration out. Hopefully it's temporary, but who knows.
Worse case, I'll just purchase a Nexus 4, because I love 4G data for just $30/month with T-mobile. Anyone else got suggestions?

wocman said:
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
Click to expand...
Click to collapse
Alright, update on this and there' good news. I called Tmobile and they said my IMEI is actually Blocked. The reason, according to him, is that Tmobile usually sweep the network to clean up all "un-supported" devices, so my device is apparently one of them and therefore got blocked about 2 days ago.
So he said for this, he needs to escalate it to business support and they surely can unblock it for me, but I have to wait until Monday since they don't work on weekend. But well, that's surely a good news. phewwwwwwwwwwwwww !!!
So to all of you guys who are in the same situation, make sure you call Tmobile first before flashing crazy like I did LOL.
Thanks for all the help.

I'd love to know if you are able to get this unblocked and working as I have the same problem as of Tuesday. I was traveling and went into a TMO store, and they told me it was NOT IMEI blocked. In fact they looked at the IMEI and read the page and said 'it was not eligible for blocking'.

I called TMO to see if my phone is IMEI blocked, and through three levels of support the universal answer was no. I'm now fully confused because if it's a hardware issue, why did several people all have the same problem all on Tuesday. For those others who are having issues, can you see the TMO network but not connect to it? That's what I have, I can see TMO and AT&T but haven't been able to connect to either one since Tuesday.

simple23227 said:
Alright, update on this and there' good news. I called Tmobile and they said my IMEI is actually Blocked. The reason, according to him, is that Tmobile usually sweep the network to clean up all "un-supported" devices, so my device is apparently one of them and therefore got blocked about 2 days ago.
So he said for this, he needs to escalate it to business support and they surely can unblock it for me, but I have to wait until Monday since they don't work on weekend. But well, that's surely a good news. phewwwwwwwwwwwwww !!!
So to all of you guys who are in the same situation, make sure you call Tmobile first before flashing crazy like I did LOL.
Thanks for all the help.
Click to expand...
Click to collapse
I'll call up T-Mobile tomorrow and ask if they IMEI blocked my device. I had them reset my signal and give me a new SIM card, but didn't realize it could have been IMEI blocked. I'll give them a call on Monday and let you know what the result is. Maybe it won't be too late to cancel my order on that Nexus 4...

I'm quite confused. I've been told last Thursday in a TMO store and with tech support that I didn't have an IMEI block, and the same with three reps tonight. I know the Sim Card is good, and so I'm being told its a hardware issue. However, several of the same phones had the same issue on the same day, so I can't buy it's a hardware issue. Has anyone with this issue flashed a new or different radio into the phone, either before or after the service loss? I have not, running it as it came out of the box.

I just got off the phone with T-Mobile Support, and they told me the device is not blocked. The reason is that T-Mobile cannot block or unblock devices that are not registered to T-Mobile. So I'm back to square one on this.

chowabbajack - When did you first have a problem, last Tuesday? Did you prior to that do any flashing or radio changes to the phone?
We're in the same spot....

alexwinsberg said:
chowabbajack - When did you first have a problem, last Tuesday? Did you prior to that do any flashing or radio changes to the phone?
We're in the same spot....
Click to expand...
Click to collapse
I did not do any kind of flashing or radio changes prior to Tuesday, when I lost signal.

chowabbajack said:
I did not do any kind of flashing or radio changes prior to Tuesday, when I lost signal.
Click to expand...
Click to collapse
That makes me think its something to do with the radio software, because I am the same the problem overall doesn't seem as large as the number of phones I perceive were bought on the Docomo deal.

Ive been using the docomo version of the nexus as well on tmobile for almost a year and it was since last tuesday when it no longer recieved any singal. with some digging around and too many phone calls, I found that the imei number on the phone is not the same as the one under the battery. i have the generic 004999010640000 imei right now and it not sure how i got it. as i bought it unlocked.
what i have tried:
reboot, battery plug, reinsert sim, factory reset, root and flash, got a new sim card, relocked, unlocked
sim card works on other phones.
also i have called tmobile and samsung endlessly and this is what i got:
tmobile cannot unblock the imei since it is not from them.
samsung is redirecting me to their japan branch.
docomo i cannot reach.
my phone before last tuesday:
unrooted stock 4.2.1
been testing different things to see if there is any way to restore the imei
also using root explorer, i cannot find my efs folder....

I've got the same problem since last Tuesday with my GNex and T-Mobile.
Mine is not from docomo though, but the French phone provider SFR, unlocked through FDocomo apk.
Rooted phone, running 4.2.1., no changes whatsoever in the past month and it worked fine until Tuesday, so I don't think I'm responsible for having no signal.
Honestly, I am relieved to see we are quite a few to have this problem, and also very pissed at T-Mobile for causing all this. What should be the next step then? Is there any chances they fix the issue quickly? If not, I might just go to the competition. I've tried AT&T sim cards and they work fine.

vanessax17 said:
Ive been using the docomo version of the nexus as well on tmobile for almost a year and it was since last tuesday when it no longer recieved any singal. with some digging around and too many phone calls, I found that the imei number on the phone is not the same as the one under the battery. i have the generic 004999010640000 imei right now and it not sure how i got it. as i bought it unlocked.
what i have tried:
reboot, battery plug, reinsert sim, factory reset, root and flash, got a new sim card, relocked, unlocked
sim card works on other phones.
also i have called tmobile and samsung endlessly and this is what i got:
tmobile cannot unblock the imei since it is not from them.
samsung is redirecting me to their japan branch.
docomo i cannot reach.
my phone before last tuesday:
unrooted stock 4.2.1
been testing different things to see if there is any way to restore the imei
also using root explorer, i cannot find my efs folder....
Click to expand...
Click to collapse
I have the exact same generic IMEI number as you, which does not match the number under the battery. I'm not liking the news that you did flash and still no go. I'm a novice at this stuff so please keep us posted.

[Q] Problem with sim unlocking and the phone itself

I have two problems with my phone, first one is how about unlocking the sim card.
1. I have already gone through http://forum.xda-developers.com/showthread.php?t=2283068 these steps for one of my sim cards, it worked for the first one. But when I used another sim card it completely blocked it and didn't give me access to the net(phonecall) at all.
2. My S4 is a SGH-M919 T-mobile version, I would love to change/replace the T-mobile out of the phone, but don't know how. The phone eats my battery quite fast, and the signals are even worse, as long as there is a roof over my head I can't get a single dot of signal. :crying:

Yourfavoritenoob said:
I have two problems with my phone, first one is how about unlocking the sim card.
1. I have already gone through http://forum.xda-developers.com/showthread.php?t=2283068 these steps for one of my sim cards, it worked for the first one. But when I used another sim card it completely blocked it and didn't give me access to the net(phonecall) at all.
2. My S4 is a SGH-M919 T-mobile version, I would love to change/replace the T-mobile out of the phone, but don't know how. The phone eats my battery quite fast, and the signals are even worse, as long as there is a roof over my head I can't get a single dot of signal. :crying:
Click to expand...
Click to collapse
1. Cant help there dont understand much in that
2. My S4 is I9505 and its from T-mobile i flashed my phone to 4.3 google edition nexus 4 ROM now have more battery time and the phone is faster!
But you will lose some of the options (like scrolling with your eye and stuff like that, not a big lose for me) :good:

SaintDaniel said:
1. Cant help there dont understand much in that
2. My S4 is I9505 and its from T-mobile i flashed my phone to 4.3 google edition nexus 4 ROM now have more battery time and the phone is faster!
But you will lose some of the options (like scrolling with your eye and stuff like that, not a big lose for me) :good:
Click to expand...
Click to collapse
Well I would like to know how to solve the signal to get better as well, I think the battery problem might get solved when the signal gets better as well. Any other ideas

I have a question about Sim unlocking too. Can I unlock my phone with an unlock code without having to put another carriers Sim card?
Sent from my SGH-M919 using XDA Premium 4 mobile app

XxKINGxX2580 said:
I have a question about Sim unlocking too. Can I unlock my phone with an unlock code without having to put another carriers Sim card?
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
My first =3=

XxKINGxX2580 said:
I have a question about Sim unlocking too. Can I unlock my phone with an unlock code without having to put another carriers Sim card?
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You can unlock it, but you can't exactly confirm without a doubt that the unlock worked. The free method here showed all the right things for me when I used it, but my AT&T SIM still wasn't working. I would have never known that I didn't successfully unlock if I had T-Mobile service and no other SIM card.

i'm having a similar problem.
to give a little background, I took the task of unlocking a friends Tmo S4 to use with Att, since his work provides att service. his brother works at tmobile so he got that version of the phone.
does the 40 day rule still apply? it's about two weeks old. it shouldn't, since it was purchased outright. also his brother couldn't do anything with it and he works at a corporate store. maybe it's a lemon?
I've tried the above method, and i've tried a few of the root methods. absolutely nothing works. the system/unlock.sh script has a line for IMEI: and unlock code: but no numbers after the colons. and the -n 8 /dev/block method gives me all kinds of info except the unlock code you're supposed to then do some simple math with.
if any of you guys have some helpful links i'd really appreciate it. I've searched and searched, posting a Q (or replying to one) is usually a last resort.
Thanks.

Walzbeer said:
i'm having a similar problem.
to give a little background, I took the task of unlocking a friends Tmo S4 to use with Att, since his work provides att service. his brother works at tmobile so he got that version of the phone.
does the 40 day rule still apply? it's about two weeks old. it shouldn't, since it was purchased outright. also his brother couldn't do anything with it and he works at a corporate store. maybe it's a lemon?
I've tried the above method, and i've tried a few of the root methods. absolutely nothing works. the system/unlock.sh script has a line for IMEI: and unlock code: but no numbers after the colons. and the -n 8 /dev/block method gives me all kinds of info except the unlock code you're supposed to then do some simple math with.
if any of you guys have some helpful links i'd really appreciate it. I've searched and searched, posting a Q (or replying to one) is usually a last resort.
Thanks.
Click to expand...
Click to collapse
Samsung unlock code algorithms are not easy to come by and not done with simple math.
If phone was purchased outright all you have to do is call Tmobile. They will provide you with the code free. It may take some time but it is free.
I do unlocking as a side business and unlocked over 400 s4's to date with z3x programming device. Of course if you are doing just one it's not feasible to spend $100 for the device.
Depending how much you earn an hour, your other option if you want fast service is to buy the unlock code on eBay. The tmobile one is expensive at around $30-$49. There is one dealer on ebay that does remote unlocking for $10. You may consider him as he uses the same device I use and has you connect your phone to your PC to initiate remote unlocking.
Honestly I wouldn't mess with the system files especially NV Data area because one screwup and you will delete your IMEI rendering the phone useless unless you buy the z3X to repair.

Thanks for the input and options.

[Q] sgh-t999l not recognizing sim

so, i recently bought this phone new in box. opened the box, inserted my sim and it does not recognize it. now i should mention that i use walmart family mobile as my carrier. could that be my problem? i'm told that t-mobile phones work since there a branch of t-mobile but so far no luck. im going from a captivate to this phone, so the sim was bigger. i used the template deal and cut it down to the micro sim size which i thought could be my problem but the sim happily works in the captivate. any help with this would be greatly appreciated. i will answer all questions to my greatest abilities and i apologize in advance if im the 18th person to ask this today like other questions

joehein said:
so, i recently bought this phone new in box. opened the box, inserted my sim and it does not recognize it. now i should mention that i use walmart family mobile as my carrier. could that be my problem? i'm told that t-mobile phones work since there a branch of t-mobile but so far no luck. im going from a captivate to this phone, so the sim was bigger. i used the template deal and cut it down to the micro sim size which i thought could be my problem but the sim happily works in the captivate. any help with this would be greatly appreciated. i will answer all questions to my greatest abilities and i apologize in advance if im the 18th person to ask this today like other questions
Click to expand...
Click to collapse
You can not swap SIM cards from one provider to another unless your phone is unlocked..
You need to purchase a T-Mobile SIM card kit...

Zaphodspeaks said:
You can not swap SIM cards from one provider to another unless your phone is unlocked..
You need to purchase a T-Mobile SIM card kit...
Click to expand...
Click to collapse
but this works with other t-mobile phones and i know this because i have done it without an unlock, but those were older older phones like the s1 and s2. does the t999l specifically pick a fight? maybe a quirk of 4.1.2?

joehein said:
but this works with other t-mobile phones and i know this because i have done it without an unlock, but those were older older phones like the s1 and s2. does the t999l specifically pick a fight? maybe a quirk of 4.1.2?
Click to expand...
Click to collapse
I believe in order for this to work on this device, you would need to unlock it..
I'm no expert, but this is my personal experience..
In order for me to test this, I would have to have both devices and YOUR sim card..

Zaphodspeaks said:
I believe in order for this to work on this device, you would need to unlock it..
I'm no expert, but this is my personal experience..
In order for me to test this, I would have to have both devices and YOUR sim card..
Click to expand...
Click to collapse
well a man can hope right? and from my extensive research i have found that because of the fancy L the only way to unlock this is via a dude on ebay, or a code directly from t-mobile. i doubt t-mobile would do this for a non-contract phone though. it certainly does suck to suck.

Esn?
~SanaDrate + LTE

"Doesn't recognize it" please explain what exactly what is happening. If it is still asking for a SIM to be inserted, you will need a new SIM, but if it is asking for a Unlock PIN Code or similar, then you will need to unlock the phone to use with a non-TMo provider. Personally, I think that since you cut the SIM and it is not lining up. You should get a new (factory made, not cut) Micro-SIM. Also, I believe that it should work with Simple, Straight Talk and Walmart Family on any TMo phone.

LG H815 sim card not recognised

Hi guys,
Don`t know if it happened to anyone else but maybe someone can help me.
I bought an LG H815 from Vodafone UK > 2 years ago and unlocked it with an ebay code. It worked just fine until February this year ,1 month before expiring the warranty. I sent it to LG UK and got replaced by a new one.
The new one was also locked I unlocked it again using an ebay code but after few days I started having problems with the signal.
I was getting a message "no sim card" and my phone restarted.
First time I thought that the sim mooved and I put it back but it kept on doing like this.
The thing is sometimes is working for a few hours sometimes it`s not working at all.
Tried different sim cards same thing happened with the phone, tried my sim in different phones was ok.
I also did a factory reset but nothing changed.
I asked the guy who sold me the unlock code and he said it might be the sim bracket.
What should I do ? Should I try to flash another kdz or to install Lineage ? Or simply go to a phone service ?
Thank you very much for taking your time to read my post.