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[Q] Serious problem with g2x, no service baseband problem?

I seriously need help with this. My phone info is this
LG-P999
Android 2.3.3 stock
Baseband: M6600A-SCAUTNZ-2.0.9720T 1[JUL 15 2011 10:00:00]MP;TRULGE_08.09.02R_MDM.
Kernel Version: 2.6.32.9
The phone has all the information about the carrier but does not connect to the network, it even recognizes a network with -89dbm but does not connect.
I don't know what's happening. When you start the wifi calling app it works but can't sustain a connection on its own. I need your phones baseband info to compare. Also i noticed on the hidden menu accessible by dialing 1809*#999# when you go to the modem setting the following menus says:
QCRIL/Android log on/off: not implemented yet (RIL)
PDP Setting: not implemented yet (RIL)
and so on with the others. I need help from people with working g2x to check this and compare the values, cause i don't know what to do. I have flashed several roms eve the stock, and i have noticed that when i flash the v10f and connect the phone to the computer the lg tool recognizes the phone as if it had the v21e leaving me without the possibility to upgrade the software, I think it is because of the baseband on the phone. I sincerely ask for your help on this. Thank you

I'd try requesting a replacement, or trying the Update method for refurbs.
Sent from my LG-P999 using XDA Premium App

Well i have tried all existing methods and nothing, cause the lg tools recognizes the actual phone model which is p999dw and wont let me upgrade because of the baseband version, and as for a replacement this is a phone o got from craigslist.

daniel86bm said:
I seriously need help with this. My phone info is this
LG-P999
Android 2.3.3 stock
Baseband: M6600A-SCAUTNZ-2.0.9720T 1[JUL 15 2011 10:00:00]MP;TRULGE_08.09.02R_MDM.
Kernel Version: 2.6.32.9
Click to expand...
Click to collapse
You seem to have the most current version, which makes me wonder about your SIM card. Perhaps you need a new one if it is an older SIM or possibly damaged.

Well My sim card is only 2 months old, it came with my htc sensation, whe I put it on the sensation works but not on the G2x i have also tried it on my father's hd2 and also works, Thank you all for your response, I feel very lucky to be an XDA member.
I will go to T-mobile tomorrow to get another sim and test.

You try a hard reset yet?
If not just hold the volume up rocker and power button for like 10 seconds and it will reboot.

Today i got a new sim card and nothing, still the same keep saying no service, when i try to call says not registered on the network

Did you ever get this issue resolved I am having the same problem...exactly, got a different sim and now I want to try to re-flash the base band if possible? Does anyone know of this issue and any way to fix without dealing with T-mobile?

Unfortunately I had this and I tried everything, went to a T-Mobile rep and they tried trouble shooting, switching sims, hard reset, I even changed roms, went back to stock froyo and gingerbread and still nothing. I'm having a new G2X replacement shipped to me free of charge from T-Mobile already. Go to your T-mobile rep and ask him to fix it (he will try and fail and will open a case with you) then if you have warranty you can get a replacement G2x.

kharnage said:
Unfortunately I had this and I tried everything, went to a T-Mobile rep and they tried trouble shooting, switching sims, hard reset, I even changed roms, went back to stock froyo and gingerbread and still nothing. I'm having a new G2X replacement shipped to me free of charge from T-Mobile already. Go to your T-mobile rep and ask him to fix it (he will try and fail and will open a case with you) then if you have warranty you can get a replacement G2x.
Click to expand...
Click to collapse
Even if you didn't purchase the phone from T-mobile? I bought the phone from Craigslist.

XMarinE said:
Even if you didn't purchase the phone from T-mobile? I bought the phone from Craigslist.
Click to expand...
Click to collapse
I purchased my phone from some guy on Amazon, just try to go to a T-Mobile rep and don't tell them you purchased it off someone else even though they might be able to check.

Dial *#*#4535#*#* on your phone and give us screenshots of the phone status. Maybe that can give a clue as to what is going on. Scroll past your IMEI and do a screenshot (power and home) then scroll down to mid screen do another screenshot and then scroll all the way down and do a third screenshot. Post them here and maybe we can figure out what is going on. Did you make sure you have the correct RIL also? Some people with your issue have flashed CM7 nightly and then flashed back to another rom and this issue has gone away.

jboxer:
Will try...after a reboot or after I get the T-Mobile to load up again because that just gets me to the dialer again. I am in the process of making a video on Youtube and see if it helps resolve the issue...?? I SCREAM SANDWICH where are you...LOL!!

Do you have a tmo sim? U need to get the phone unlocked if u dont

Yes I do have a Tmo sim...and service.

You got took by the person on craigslist. Always test before you buy. #1 rule...
Sent from my LG-P999 using xda premium

T-Mobile is also now blocking IMEIs from the network. So that is also a possibility, especially when the phone is showing that it recognizes the network, but won't connect.
I think the only way T-Mobile will block the IMEI is if someone used installments to get the phone, and then the account canceled before the first payment.
Sent from my LG-P999 using XDA App

butterbeam said:
You got took by the person on craigslist. Always test before you buy. #1 rule...
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
No..the phone did work when I tested it. It was not rooted or unlocked. It worked fine...all of a sudden it stopped? I can use any other carrier card and it will work flawlessly. I have a Straight Talk card and can plug it in and no problems..only the data is 2g(Edge) speed on the G2x. Calls and MMS and it shows AT&T as the carrier while the sim from Straight Talk is in. Only the T-Mobile one has an issue. I had the phone for more than 3 months without any problems. I don't think I got took if there weren't any apparent red flags at time of purchase. I took the sim from my old phone at time of purchase and said I want to check it out first and the previous owner agreed. I think the issue is with T-Mobile and the way their equipment works with LG G2x. I am posting a video on YouTube in the next few days to let people see what happens with different scenarios.

XMarinE said:
No..the phone did work when I tested it. It was not rooted or unlocked. It worked fine...all of a sudden it stopped? I can use any other carrier card and it will work flawlessly. I have a Straight Talk card and can plug it in and no problems..only the data is 2g(Edge) speed on the G2x. Calls and MMS and it shows AT&T as the carrier while the sim from Straight Talk is in. Only the T-Mobile one has an issue. I had the phone for more than 3 months without any problems. I don't think I got took if there weren't any apparent red flags at time of purchase. I took the sim from my old phone at time of purchase and said I want to check it out first and the previous owner agreed. I think the issue is with T-Mobile and the way their equipment works with LG G2x. I am posting a video on YouTube in the next few days to let people see what happens with different scenarios.
Click to expand...
Click to collapse
If the phone is working with Straight Talk (AT&T) and not T-Mobile then I do believe it is a blocked IMEI issue. The person that sold it to you probably stopped paying their bill. T-Mobile doesn't block the IMEI until they send the account to collection, which takes about three months or so. You can probably call TMO and ask them to check the IMEI and see if they blocked it (if the CSRs can check the blacklist database). This blocking of the IMEI is specific to T-Mobile only so it would not affect AT&T's network or using the phone on any other carrier in the world.

jboxer: Will check on that issue...thanks jboxer
---------- Post added at 02:25 PM ---------- Previous post was at 02:21 PM ----------
jboxer said:
If the phone is working with Straight Talk (AT&T) and not T-Mobile then I do believe it is a blocked IMEI issue. The person that sold it to you probably stopped paying their bill. T-Mobile doesn't block the IMEI until they send the account to collection, which takes about three months or so. You can probably call TMO and ask them to check the IMEI and see if they blocked it (if the CSRs can check the blacklist database). This blocking of the IMEI is specific to T-Mobile only so it would not affect AT&T's network or using the phone on any other carrier in the world.
Click to expand...
Click to collapse
Can I check any IEMI database? I checked one from a Australia database and it said the status is unlocked? Are there any United States places to check or do I need to contact T-Mobile?

[Q] Network connection cuts out - Not registered on network

I have read a few threads about this issue, but none of them seem to be the same exact problem..
Right now I am running ParanoidAndroid 2.15 with InstigatorX 6.3.6 kernel.
When I first noticed the problem I was on PA 2.13/IX 6.3.6 I believe and I was using the UCLF6 modem.
My network connection was fine until one day I noticed that I had 0 connectivity and when I tried to make a phone call it said I wasn't registered on the network.
Sooo the issue..
My network connection constantly shows that I am not connected to the ATT network, sometimes the network is out for a good 5 minutes or so before it connects to it again. When it does connect to the network it usually shows up as connected to the Edge network..once in a while it will show 3g; I used to have full bars of 4g/hspa.
After a few minutes go by, the network connection cuts off and I am again once disconnected from the network.
From the time I had no problem with my connection to when it started disconnecting from the network I have no idea what happened.
Yes, I do flash ROMs a lot, but this seemed to happen over night. (I had not messed with my ROM for a good while and then BAM my network blows 'all of a sudden')
Things I have tried..
I have tried different roms, different modems, I have tried the whole airplane mode deal, tried pulling the batter, I have reverted back to stock using Odin and the stock ROM file. My IMEI number shows up correctly, my settings are default as far as allowing data connections ect.
I am not sure if there is anything I can do besides call up the warranty department and try and get a new phone, but I wanted to ask here before I did that.. I've already returned my phone like 2 or 3 times since February lol.

Try getting a new SIM card from AT&T. There is a $10 fee for it, but I had a similar problem and this fixed it for me. My phone would lose service and say "No SIM card inserted" then I would hit restart and everything would work except phone calls. I had to remove the SIM for a few minutes and put it back in in order to make or receive calls.
Sent from my SGH-I727 using xda app-developers app

Not sure if this will help or not, but in the past I have had AT&T "re-initialize" my phone on their end and it has fixed some connectivity issues.
Good luck!

Well dang, I was wishing and a praying I'd come back to some good news lol. Oh well

mtu_husky said:
Not sure if this will help or not, but in the past I have had AT&T "re-initialize" my phone on their end and it has fixed some connectivity issues.
Good luck!
Click to expand...
Click to collapse
happened to me today. att rep told me i need ti turn gps on all the time bulls***!
Sent from my SAMSUNG-SGH-I727 using xda premium

Backup and odin back to stock I727UCLF6 and see if the problem goes away. If yes then its possible you need to look for the AT&T LTE APN settings.

askpcguy said:
Backup and odin back to stock I727UCLF6 and see if the problem goes away. If yes then its possible you need to look for the AT&T LTE APN settings.
Click to expand...
Click to collapse
I've tried using Odin to stock ICS and also GB, but the problem still occurs =\

Did you unlock it?
Hey,
Did you unlock the phone? I have a similar issue, having had tried many different modems kernels and ROMs including the stock ones. It turns out that if the phone is unlocked then it will lose connectivity to lte and 3g. I get edge sometimes and one bar max but I cannot make a call out ever.
Unlocked it as I was travelling in the states and now Roger's says I voided my warranty by unlocking it. Tried a different sim card but I am only able to text right now, no calls. The only silver lining is the big three are starting to lower their prices a bit to compete with new competitors.Then again they make budget brands like koodo and public mobile to directly compete with the new entrants so unless the crtc steps in looks like we'll always get gouged.

canadianclub said:
Hey,
Did you unlock the phone? I have a similar issue, having had tried many different modems kernels and ROMs including the stock ones. It turns out that if the phone is unlocked then it will lose connectivity to lte and 3g. I get edge sometimes and one bar max but I cannot make a call out ever.
Unlocked it as I was travelling in the states and now Roger's says I voided my warranty by unlocking it. Tried a different sim card but I am only able to text right now, no calls. The only silver lining is the big three are starting to lower their prices a bit to compete with new competitors.Then again they make budget brands like koodo and public mobile to directly compete with the new entrants so unless the crtc steps in looks like we'll always get gouged.
Click to expand...
Click to collapse
Unlock it as in use it with a different carrier right? No I havent done that, just rooted it.
I've never had any problems with my connection until this JB rom I had on it =\

But have you verified the imei shown in settings > status is the same as what is on the sticker under the battery?
Sent from my SGH-I727 using xda premium

askpcguy said:
But have you verified the imei shown in settings > status is the same as what is on the sticker under the battery?
Sent from my SGH-I727 using xda premium
Click to expand...
Click to collapse
Yes, they are the same :crying:

Are you able to rule out the sim card as the problem?
Sent from my SGH-I727 using xda premium

askpcguy said:
Are you able to rule out the sim card as the problem?
Sent from my SGH-I727 using xda premium
Click to expand...
Click to collapse
I'm not 100%, but I don't have any warnings about my SIM card or anything

Same boat
I'm having the same issue with my Galaxy Note 717r on Canadian carriers Rogers and Telus
I keep getting the Error 'Not registered on Network'
On Rogers, if I select GSM only, it will register on the Network and connect with EDGE speeds
It has been Carrier unlocked at some point but it was working that way for a while. You can check by using this service code: *#7465625#
Tried multiple SIM cards that work with other phones.
Verified that the IMEI number matches what is on the sticker *#06# Rogers told me if I can make calls on the GSM network than the IMEI isn't blocked. Don't know if that's true but it makes sense.
Went back to stock everything (Modem, CSC, ROM) then I upgraded to ICS OTA.
Enable SIM lock, Disabled SIM lock.
How do you know that carrier unlocking blocks you on the 3G/LTE networks? Can the carrier be relocked?
I've got another 717r coming to me. I think I'll try backing up the EFS folder and restoring it on this phone just to verify it's not corrupt or a blocked IMEI.

pot srarnewi
tweebs said:
I'm having the same issue with my Galaxy Note 717r on Canadian carriers Rogers and Telus
I keep getting the Error 'Not registered on Network'
How do you know that carrier unlocking blocks you on the 3G/LTE networks? Can the carrier be relocked?
Click to expand...
Click to collapse
I'm not sure about that one.
But what ROM do you use? It seems like this only happens with people who have JB ROMs..it looks like..
I just called ATT , they did some kind of wireless number reset, nothing happened.
They are going to send me a new SIM card which I can test and see if that fixes the problem, but I'm not going to hold my breath though.

I just called ATT , they did some kind of wireless number reset, nothing happened.
They are going to send me a new SIM card which I can test and see if that fixes the problem, but I'm not going to hold my breath though.
Click to expand...
Click to collapse
I am having the same issue. Did you receive the SIM card and did it fix it?

Try going to retail at&t store and show them. Get you a new device.
Sent from my SGH-I727 using xda premium

[Q] Phone Thinks I Am Roaming

Hello,
I bought my HTC Sensation about a year ago on Ebay. The seller claimed the phone was purchased outright and paid off. I checked the imei and it showed clean. When I got it, I popped my Airfire sim card into it and it worked fine. A month ago, I switched to Cricket as Airfire was going out of business. Cricket made me enter my imei. It said it was bad. I called T-Mobile and they said the seller defaulted on payments. They refused to help in any way. They told me to buy the phone direct from them next time. I told them I had proof I was buying it in good faith. They didn't care and apparently have no problem punishing the victim.
Anyways, when I got my Cricket sim and popped it in, my phone said I was roaming. It has said I was roaming for a full month now. I can send and receive calls, but my data is stuck at EDGE and some of the programs don't work since the phone thinks its roaming. I need to have "data roaming" enabled for data to work. Cricket ran some tests and eventually said I needed to do a factory reset.
So, I switched from the Android Revolution rom to the ViperS 5.2.1 rom. I did a full dalvik and cache wipe and reformatted everything but the sd card. I installed the new rom and kernal. Same thing. Phone still says I am roaming. Odd thing is, when I go to manually select carrier, my options are Cricket (current carrier), Airfire (previous carrier) and TMobile (stock carrier). Also, when I am using data, it has an "E" above the data. E is what Airfire used. Is there somehow somewhere a place that the phone is storing info through wipes?
I am s-off, rooted and debranded. I sim unlocked the phone myself. I am so stuck and think that only one of the geniuses on XDA are my only hope. I have went mental spending hours and hours on this. Some XDA peeps are smarted than HTC and Cricket combined, so please help me out here.
Thanks,
Grant

SuperGrant said:
Hello,
Thanks,
Grant
Click to expand...
Click to collapse
Hi grant, this is a very odd situation your in. With my sensation when I leave the UK and connect to another EU "partner network" is the only time my phone would jump into roaming mode. Is it possible that cricket is not directly supported in your area? Maybe they rent their local connection from another carrier and thats why your getting connected as roaming? Have you tried any other sim cards to see if they come up as roaming?
Sent from my HTC Desire S using Tapatalk

Hi heavy_metal_man
I am quite sure that At&t is Cricket's parent company so all of the towers should be At&t's networks. Also, I have checked it when in other cities and I get the same message, though I haven't traveled more than 30 miles away.
The previous sim with AirFire worked fine. I also popped out the sim for Cricket and put it in my mom's phone to see if it was the sim. Her's worked fine. She got the automatic Cricket update settings right away and was not roaming. Mine never got the Cricket pop-up so I had to manually enter all of the data info. Yes, odd indeed and I am lost.

SuperGrant said:
I am quite sure that At&t is Cricket's parent company so all of the towers should be At&t's networks. Also, I have checked it when in other cities and I get the same message, though I haven't traveled more than 30 miles away.
The previous sim with AirFire worked fine. I also popped out the sim for Cricket and put it in my mom's phone to see if it was the sim. Her's worked fine. She got the automatic Cricket update settings right away and was not roaming. Mine never got the Cricket pop-up so I had to manually enter all of the data info. Yes, odd indeed and I am lost.
Click to expand...
Click to collapse
OK, the info your adding manually, is that the same info as is registered when the card is in your mums phone? Same APN etc?
Sent from my HTC Sensation using Tapatalk

heavy_metal_man said:
OK, the info your adding manually, is that the same info as is registered when the card is in your mums phone? Same APN etc?
Hi heavy_metal_man. Yup. Same info. Only difference is that the info all loads automatically on hers. I do get automated texts from Cricket when I put the sim in my phone as did she, but I had to get the APN info from Cricket the first time because it didn't auto load. I am still wondering if it is a sim issue, but I expected my mom's phone to be roaming when I put the sim in hers. I was shocked when it wasn't. She just has a free stock phone from Airfire btw. Nothing fancy and nothing done to it.
Click to expand...
Click to collapse

SuperGrant said:
heavy_metal_man said:
OK, the info your adding manually, is that the same info as is registered when the card is in your mums phone? Same APN etc?
Click to expand...
Click to collapse
Hi heavy_metal_man. Yup. Same info. Only difference is that the info all loads automatically on hers. I do get automated texts from Cricket when I put the sim in my phone as did she, but I had to get the APN info from Cricket the first time because it didn't auto load. I am still wondering if it is a sim issue, but I expected my mom's phone to be roaming when I put the sim in hers. I was shocked when it wasn't. She just has a free stock phone from Airfire btw. Nothing fancy and nothing done to it.
Click to expand...
Click to collapse
Hmm. Are those 3 carriers the only ones available to you? I think the imei may be key here, if cricket know its a T-Mobile phone they may register that you are roaming. I think your previous carrier (airfire) was a Virtual mobile network, much like giffgaff in the UK ( which runs on the o2 network.) As such they may not have inforced the same imei policy's that cricket does. But this is just a hunch as I am on UK networks and we do things much differently. If you could ask about any friends and colleges that have different carrier simcards from our previous 3 you could gauge what carriers your phone is compatible with.
Worst case scenario you could maybe buy another broken htc sensation and perform a motherboard swap. This would solve your imei issue, assuming that it was the primary issue. But check the simcards first and report back
Sent from my Nexus 7 using Tapatalk

heavy_metal_man said:
Hmm. Are those 3 carriers the only ones available to you? I think the imei may be key here, if cricket know its a T-Mobile phone they may register that you are roaming. I think your previous carrier (airfire) was a Virtual mobile network, much like giffgaff in the UK ( which runs on the o2 network.) As such they may not have inforced the same imei policy's that cricket does. But this is just a hunch as I am on UK networks and we do things much differently. If you could ask about any friends and colleges that have different carrier simcards from our previous 3 you could gauge what carriers your phone is compatible with.
Worst case scenario you could maybe buy another broken htc sensation and perform a motherboard swap. This would solve your imei issue, assuming that it was the primary issue. But check the simcards first and report back
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Hmm... There are only 3 carriers available. Should there be more? It's not tied to the sim? Everyone I know either still has Airfire and plans on switching to Cricket or has cdma so I have been out of luck with trying another sim. The only other thing I thought about was 4ext recovery. No matter what I flash; roms, kernals, firmware or radios, the recovery always survives of course. So, if the previous carriers are surviving the flashes, perhaps there is a place on the phone like the recovery where they are surviving.

SuperGrant said:
Hmm... There are only 3 carriers available. Should there be more? It's not tied to the sim? Everyone I know either still has Airfire and plans on switching to Cricket or has cdma so I have been out of luck with trying another sim. The only other thing I thought about was 4ext recovery. No matter what I flash; roms, kernals, firmware or radios, the recovery always survives of course. So, if the previous carriers are surviving the flashes, perhaps there is a place on the phone like the recovery where they are surviving.
Click to expand...
Click to collapse
Its unlikely to be to do with the recovery, no reason for it to keep anything like that. It's most likely the phones imei at this point, though im unsure as to why this was not an issue for airfire.
Do you know what firmware version you have? Have you flashed 3.33 by yourself?
Sent from my Nexus 7 using Tapatalk

heavy_metal_man said:
Its unlikely to be to do with the recovery, no reason for it to keep anything like that. It's most likely the phones imei at this point, though im unsure as to why this was not an issue for airfire.
Do you know what firmware version you have? Have you flashed 3.33 by yourself?
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Yup, I flashed 3.33 universal after doing a super Cid. Well, maybe its time to just get a new phone, although I would really like to figure out this problem first. I am not the kind of person who can just drop things, lol.

SuperGrant said:
Yup, I flashed 3.33 universal after doing a super Cid. Well, maybe its time to just get a new phone, although I would really like to figure out this problem first. I am not the kind of person who can just drop things, lol.
Click to expand...
Click to collapse
I know how you feel. Maybe its because they cricket know the sensation 4g is a T-Mobile device and force you into roaming mode by default. I think its possible to overwrite the devices mid and cid, flash a sensation XE rom and effectively have a sensation XE. But such things can be quite dangerous and i couldn't say for definite if it would work to fix your issue :/ (not recommending anyone tries this without proper research and understanding :/)
Can you get access to another cricket sim without a contract? Just for testing?
Sent from my Nexus 7 using Tapatalk

heavy_metal_man said:
I know how you feel. Maybe its because they cricket know the sensation 4g is a T-Mobile device and force you into roaming mode by default. I think its possible to overwrite the devices mid and cid, flash a sensation XE rom and effectively have a sensation XE. But such things can be quite dangerous and i couldn't say for definite if it would work to fix your issue :/ (not recommending anyone tries this without proper research and understanding :/)
Can you get access to another cricket sim without a contract? Just for testing?
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
I believe I have already done that. When I go into info about my phone, it says Sensation XE. It also registers as Sensation XE in the Google play store. I was thinking about telling Cricket to send me a new sim. Otherwise, I have no access to one at this time.

SuperGrant said:
I believe I have already done that. When I go into info about my phone, it says Sensation XE. It also registers as Sensation XE in the Google play store. I was thinking about telling Cricket to send me a new sim. Otherwise, I have no access to one at this time.
Click to expand...
Click to collapse
I think that it would be your best bet, although your device is probably showing up on the play store as an XE because of its build.prop from your custom rom, not any advanced MID changes. although you can check by using the command
Code:
fastboot getvar all
this will show your your mid, cid and your imei among other things.

SuperGrant said:
I believe I have already done that. When I go into info about my phone, it says Sensation XE. It also registers as Sensation XE in the Google play store. I was thinking about telling Cricket to send me a new sim. Otherwise, I have no access to one at this time.
Click to expand...
Click to collapse
I've worked it out! Its a frequency issue. Cricket apparently only support cdma frequency's, while the sensation only uses gsm frequency's. So in order to connect your phone is bunnying onto a local gsm service, which is then redirecting you to cricket. Hence the roaming! If you want off the data roaming you will need to either swap to a different phone carrier or buy a cdma phone
Sent from my Nexus 7 using Tapatalk

Hi heavy_metal_man,
Cricket did use CDMA for most of the time, but they have switched to GSM. They send a sim now and are trying to switch all of their old customers to GSM. What I am having trouble figuring out is what frequencies they use. Perhaps my phone is not quite compatible. I am having trouble with that as well. GSM arena, Phonescoop and the other major sites kind of have different data as far as my phone goes. My phone is called "HTC Sensation 4G" as far as I know. Yet, they list no 4g capability or frequencies. Of course, I believe that would only affect data and I still should not show as roaming.
I have been unable to figure out fastboot since switching to the viper rom. It doesn't use usb mass storage anymore. It uses the new system in which the whole phone is recognized as a storage device by the computer. Forgot what they called it. I wish they hadn't changed it, and apparently Windows 7 should recognize it by default, but it does not. I am sure if I get enough time to put into it I will figure out how to use the fastboot commands again.
I am ready to give up and just get a new phone pretty soon. Would be nice if Cricket's customer service wasn't so worthless. It could still be the IMEI or something on their end that I can do nothing about but they have failed to provide any solution.

SuperGrant said:
Hi heavy_metal_man,
Cricket did use CDMA for most of the time, but they have switched to GSM. They send a sim now and are trying to switch all of their old customers to GSM. What I am having trouble figuring out is what frequencies they use. Perhaps my phone is not quite compatible. I am having trouble with that as well. GSM arena, Phonescoop and the other major sites kind of have different data as far as my phone goes. My phone is called "HTC Sensation 4G" as far as I know. Yet, they list no 4g capability or frequencies. Of course, I believe that would only affect data and I still should not show as roaming.
I have been unable to figure out fastboot since switching to the viper rom. It doesn't use usb mass storage anymore. It uses the new system in which the whole phone is recognized as a storage device by the computer. Forgot what they called it. I wish they hadn't changed it, and apparently Windows 7 should recognize it by default, but it does not. I am sure if I get enough time to put into it I will figure out how to use the fastboot commands again.
I am ready to give up and just get a new phone pretty soon. Would be nice if Cricket's customer service wasn't so worthless. It could still be the IMEI or something on their end that I can do nothing about but they have failed to provide any solution.
Click to expand...
Click to collapse
Sorry for my delayed reply, I noticed that cricket swapped out to gsm and I discovered that their gsm tech is actually supplied at&t as they bought them out.
So I looked at their coverage map for the area airfire operated and I noticed that they had 2 or 3 area that were only providing 3g support via a partner, so I assume that would put you into roaming. It might be worth a look at their map and confirm if you reside on one of these black areas ?
Sent from my HTC Desire S using Tapatalk

Signal/Network problem

Hi guys,
I've been having this problem with my N5.
Its a d820 model, unlocked and rooted.
I have no signal, cant register to the network either.
I can use wifi with no problem too.
I changed the micro sim card with other carriers, same issue. I asked for a new micro sim to my carrier too (not cut), but still getting the same problem.
It's worth mentioning that the micro sim works flawlessly. Im using it everyday on an HTC One S and signal and data works perfectly.
When I first get the simcard on the N5, it asks for a reboot, after it comes back up, it shows strong signal, but I can't make any call or receive, no messages either.
After a few minutes, the signal goes down and it shows only emergency calls.
Going into mobile networks and searching for my carrier takes quite some time, but no matter how many times I try to select my carrier,it always comes back with not able to register in the network.
I did a factory reset, and went back to stock, and then performed the system updates to 4.4.4.
I flashed a couple of radios as well, but no luck.
The IMEI shows well, and its the same that shows on the box, so I guess no problems there with a corrupt IMEI.
Has anyone else had any problem like this? Any suggestions?
I've been reading some threads here, and I still have to try a different kernel/ROM, but if anyone else knows of a similar situation, I would appreciate any suggestions.

May be it has something to do wid preferred network...
If u use 3g go to dialpad
Type
*#*#4636#*#* phone info
Select modem as wcdma only...
If u use lte select lte only... See if this works

I think I already tried that, but cant remember for sure
Will give it a shot, thanks

Is the phone second hand?
Have you checked if the IMEI is blocked by the network?

sounds like you bought a used phone that has been blacklisted. if blacklisted, your phone wont work on any US carrier, and many Canadian carriers.

Yes its a second hand phone, and I don't know if it is blacklisted on USA, but Im in South America, so that shouldnt be a problem
And there are no carriers here working with N5 so they cant blacklist the IMEI either
(This doesnt mean that the phone doesnt work here, actually, my wife has another N5 that works like a charm here)

masok said:
Yes its a second hand phone, and I don't know if it is blacklisted on USA, but Im in South America, so that shouldnt be a problem
And there are no carriers here working with N5 so they cant blacklist the IMEI either
(This doesnt mean that the phone doesnt work here, actually, my wife has another N5 that works like a charm here)
Click to expand...
Click to collapse
the carriers dont have to work with the n5 to blacklist it. in other words, they can blacklist any phone that connects to their network. as soon as you connect to the network, they know your imei and other info about your phone. anyways, they blacklist your imei, so when your phone tries to connect, it cant. the agreement that carriers have in the US and Canada, could possibly be for all of the americas, or, in south america, they could have their own blacklist.
---------- Post added at 12:25 PM ---------- Previous post was at 12:23 PM ----------
googling, i found that carriers worldwide are sharing blacklists.
The GSMA, an international association of wireless carriers, also keeps a database that wireless carriers worldwide could check to prevent stolen phones from being reactivated on their networks.
Click to expand...
Click to collapse

I will check on that, I think I can just call my carrier and ask if that IMEI is blacklisted or not

masok said:
I will check on that, I think I can just call my carrier and ask if that IMEI is blacklisted or not
Click to expand...
Click to collapse
yup, thats the best thing to do. the people that first answer the phone, customer service, probably wont be able to help, maybe someone in tech. or, use this website to check(there art other sites as well).. http://swappa.com/esn

Well I just checked. IMEI not blacklisted on my carrier, also checked with swappa, not blacklisted either.
I used the *#*#4636#*#* to select wcdma as well as other options there, but still no go.
Also, under Mobile network settings, changed the preferred network type to LTE, 3G and 2G, but no luck
Tried Choose automatically the network, but still getting the message that its unable to register to the network right now and that I should try again later
I guess Im left with flashing some other ROM/kernel to see if it helps, unless someone has any other suggestions

masok said:
Well I just checked. IMEI not blacklisted on my carrier, also checked with swappa, not blacklisted either.
I used the *#*#4636#*#* to select wcdma as well as other options there, but still no go.
Also, under Mobile network settings, changed the preferred network type to LTE, 3G and 2G, but no luck
Tried Choose automatically the network, but still getting the message that its unable to register to the network right now and that I should try again later
I guess Im left with flashing some other ROM/kernel to see if it helps, unless someone has any other suggestions
Click to expand...
Click to collapse
call your provider first, problem can be on their end.
---------- Post added at 07:02 PM ---------- Previous post was at 06:58 PM ----------
also, what kind of nexus 5 is it, a d820 or d821? it would make a difference signal-wise. ones for north america, ones for europe. honestly, i have no idea which you would need http://www.phonearena.com/news/Differences-between-the-two-Nexus-5-models-D820-and-D821_id48985

I don't know if the problem is with the carrier, since I'm using the very same simcard with another phone and I have data and network with no problem.
The phone is d820, but I know it works here (my wife has the same one), network 2g and 3g work well here, LTE is the only thing that won't work here with this phone but I don't care about that
I'll keep looking just in case, and I guess tomorrow I'll flash different ROM
Sent from my Nexus 5 using XDA Free mobile app

masok said:
I don't know if the problem is with the carrier, since I'm using the very same simcard with another phone and I have data and network with no problem.
The phone is d820, but I know it works here (my wife has the same one), network 2g and 3g work well here, LTE is the only thing that won't work here with this phone but I don't care about that
I'll keep looking just in case, and I guess tomorrow I'll flash different ROM
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
If the problem is wid radio flashing a different rom won't matter ..
Have u tried flashing a factory image ?

I know flashing a new ROM wont help with radio, but I've seen that using *#*#4636#*#*, going into phone information and then Select Radio Band, gives me an error and force closes.
I've seen some threads about that, and someone saying that it was working on a CM ROM, so I was thinking of trying that in order to be able to select the radio band and see if that helps.
About the factory image, yes, I used the google images to go back to stock, and then performed the system updates.

Well I flashed Slim Rom, and was able to get into *#*#4636#*#* to change radio band. Tried them all, no change.
Played around with the preferred networks and no luck either.
I'm officially out of ideas, but I'll keep digging around to see what I can find.
Any suggestions welcome.
Also, I know that there is a known issue with the GPS signal on some Nexus 5, and there are a few videos on Youtube showing how to fix it (basically opening the back of the phone, and sticking a piece of paper under the connector).
Does anyone know if there is something similar happening with the radio? Does anyone have a photo of the phone showing which part would be the antenna?
One additional thing I noticed.
If I switch, or just take out and reinsert the micro sim, the phone asks for a reboot. After doing that, when the phone boots up, I see I have network (full bars), going into mobile operators, I can see my carrier, and I can register too. But I cant make or receive any calls or messages.
During this 10 minutes that I have this sort of fake signal, if I go into *#*#4636#*#* and phone info, I can see my carrier, but it doesn't show my phone number. Weird.

Lg nexus 5 network issue
i am facing the same issue with exus 5 .In my hometown in India,the phone simply shows "Emergency calls only" and shifts to normal working mode with full network coverage once i travel to other parts of my state (parts which probably has a better signal strength ,i dont know ).i have tried out changing the sim card and a factory data reset ..Both didnt help ..
masok said:
Hi guys,
I've been having this problem with my N5.
Its a d820 model, unlocked and rooted.
I have no signal, cant register to the network either.
I can use wifi with no problem too.
I changed the micro sim card with other carriers, same issue. I asked for a new micro sim to my carrier too (not cut), but still getting the same problem.
It's worth mentioning that the micro sim works flawlessly. Im using it everyday on an HTC One S and signal and data works perfectly.
When I first get the simcard on the N5, it asks for a reboot, after it comes back up, it shows strong signal, but I can't make any call or receive, no messages either.
After a few minutes, the signal goes down and it shows only emergency calls.
Going into mobile networks and searching for my carrier takes quite some time, but no matter how many times I try to select my carrier,it always comes back with not able to register in the network.
I did a factory reset, and went back to stock, and then performed the system updates to 4.4.4.
I flashed a couple of radios as well, but no luck.
The IMEI shows well, and its the same that shows on the box, so I guess no problems there with a corrupt IMEI.
Has anyone else had any problem like this? Any suggestions?
I've been reading some threads here, and I still have to try a different kernel/ROM, but if anyone else knows of a similar situation, I would appreciate any suggestions.
Click to expand...
Click to collapse

praveenkrishnan said:
i am facing the same issue with exus 5 .In my hometown in India,the phone simply shows "Emergency calls only" and shifts to normal working mode with full network coverage once i travel to other parts of my state (parts which probably has a better signal strength ,i dont know ).i have tried out changing the sim card and a factory data reset ..Both didnt help ..
Click to expand...
Click to collapse
Has anyone been able to track down the issue and get it resolved? I'm facing the same situation, and almost taking it to an authorized LG support so that they can change the motherboard.

[Q] OPO on T-Mobile - 2nd OPO, same problem - network connection issue

Hello all,
Back again.
I'm trying to get my "2nd" OPO to work on T-Mobile USA.
First of all, it is not a SIM issue. I have 2 microSIMs that can be used freely across all T-Mobile enabled devices.
Once I try to connect to T-Mobile, it gives me a "Your SIM card doesn't allow connection to this network".
I tried the 'unlock the basebands/LTE process', got as far as ADB talk, but I cannot execute the su command, so the setprop does not work.
And this is my 2nd phone, a replacement from OPO. 2nd month running already. The 1st one had the same issue, but at the time I did not do research on tinkering with it,
and was 'NAIVELY' believing in OPO's customer 'service'.
Took me 2 weeks just to get 2 basic replies of "tech support", which didn't help since they gave me rather weak tech suggestions - 1st suggestion was reset, 2nd suggestion
was to look at the T-Mobile thread (I cannot connect to network, so how do you expect me to connect to APN?!?) . Then took them 3 weeks to go through the RMA process,
and yet another 2 weeks to send me a replacement(not).
Any assistance appreciated.

Check your imei on the tmo compatibility site. It could be blocked. Dumber things have happened. Double check that the SIM is installed properly. Second replacement and multiple sims seems to point at something you are doing.

Coug76 said:
Check your imei on the tmo compatibility site. It could be blocked. Dumber things have happened. Double check that the SIM is installed properly. Second replacement and multiple sims seems to point at something you are doing.
Click to expand...
Click to collapse
Thank you for your response!
Yes, the IMEI is not recognized on t-mobile. Which is stupid since this is the second one (the 1st one had the same issue too).
Has anyone else gone through this frustrating experience? To have two OPOs whose IMEIs are not recognized is...... well.... $!%#!. :silly:
SIM installations are fine. I have done them multiple times, with the same results.

neov8 said:
Thank you for your response!
Yes, the IMEI is not recognized on t-mobile. Which is stupid since this is the second one (the 1st one had the same issue too).
Has anyone else gone through this frustrating experience? To have two OPOs whose IMEIs are not recognized is...... well.... $!%#!. :silly:
SIM installations are fine. I have done them multiple times, with the same results.
Click to expand...
Click to collapse
Future reference no need to create a new thread to ask the same question as before. You should of just continued your first thread so others would know what you have been going through and what was done to try and fix it. Glad you got it sorted or did you....

playya said:
Future reference no need to create a new thread to ask the same question as before. You should of just continued your first thread so others would know what you have been going through and what was done to try and fix it. Glad you got it sorted or did you....
Click to expand...
Click to collapse
Got it.
Unfortunately no. Second OPO, same issues again. IMEI is not supported either. So, Groundhog Day here.

I'm with you man. I left vzw for T-Mobile and struggled like hell with getting the OPO working properly on it. From loaner phones to multiple sims, they/we tried everything. End result was to leave for at& . The signal is strong, but yet I keep missing calls daily. This beauty is going up on eBay. I just can't take it anymore. Sucks because Dev involvement is Huge here

Register and activate your phone with T-Mobile... I had the same issues for MetroPCS, and that fixed it.
Sent from my Rockin 1+1 on XDA Premium...

Jimmy Rudedog said:
Register and activate your phone with T-Mobile... I had the same issues for MetroPCS, and that fixed it.
Sent from my Rockin 1+1 on XDA Premium...
Click to expand...
Click to collapse
I dont have any issues with network on Tmo, but what do u mean by register and activate ?

What I am saying is, you need to contact your carrier and get your IMEI entered into their system in order for the phone to run all services correctly on your carrier... whether it be T-Mobile or anybody else.
My 1+1 ran most of the services and operated on my SIM card and phone number in my hometown area. But, when I went to another area or town, it would not register with or run on any carrier... NONE! not even roaming like it does at home. I had to go to MetroPCS (on T-Mo network) and get my phone activated onto their system for it to run data, and 4G LTE. By just inserting the SIM card does not automatically sign your phone into the system and you should call or go to a dealer store and get it turned onto your particular carrier to run the network correctly.
Hope this clarifies my statement.

I never had to register or the like with my OPO for t-mobile. Didn't have to with my wife's OPO either.

It's a common enough issue across carriers. Sometime you do have to register the phone, and make sure you have the correct APN settings.
I just gave my daughter my OPO, I had Consumer Cellular (ATT) SIM in it. She dropped in her T-Mobile SIM and off she went, working perfectly. She's been using the phone about 2 weeks now, and in response to your question, I just checked her aPN, since I knew it's been working perfectly for her, only to discover the phone pulled in a MetroPCS APN! It's been working so well, she doesn't want me to change it to the T-Mobile APNs that are in the list.
Here is her APN settings (Calif-San Diego area), MetroPCS
name MetroPCS LTE
apn fast.metropcs.com
MMSC http://metorpcs.mmsmvno.com/mms/wapenc
mcc 310
mnc 260
apn type default,mms,supl
apn protocol IPV4
apn roaming protocol IPV4
mvno type none

Coug76 said:
I never had to register or the like with my OPO for t-mobile. Didn't have to with my wife's OPO either.
Click to expand...
Click to collapse
What APN is you OPO set to?

I had just popped in the SIM card and it did work in my local area. But when I went outta town, my phone wouldn't connect to any services, no roaming either. I use MetroPCS on T-Mobile network, and nothing would run without activation on their system and registering the IMEI. So, results may vary depending on the carrier or area.
Sent from my A0001 using XDA Premium 4 mobile app

registering
I am a frequent visitor to the USA from Canada. Usually with my original Samsung or Nexus rdware from Canadian carriers, but unlocked.
Each US carrier has insisted on registering my IMEI prior to activating a SIM. It seems to the user you can pull a SIM and place in any old device and most times, no problem. But that's not the carrier approved method.
T-MO was very insistent on this. To the point they would not activate a SIM for me with out the device and the IMEI first
Hopefully registering with your carrier solves this. It's a thing and may be the point of issue for you.