Develop Bugs

[Q] No service after unlocking. How to fix?

Hi, this is my first post.
Well, the problem I'm having is that I had been using my Htc slide with T-mobile and it worked just fine. Yesterday I unlocked it via IMEI to start using it with Claro -Puerto Rico-, so I switched to the Claro SIM card and it has no signal and it shows the (No Service) message, when the phone starts up it gets 2 white signal bars and quickly drops to no service, I checked the APN, the antenna, changing ROMs, set the band to GSM only, I've searched all over the net for solutions and nothing seems to work. :/ Then I switched back to the T-mobile SIM and I have no service either, so it seems as if unlocking it messed up the signal completely and it has rendered the phone useless.
Any ideas on what can be happening or how to solve this?
Thanks.

Sabatieni said:
Hi, this is my first post.
Well, the problem I'm having is that I had been using my Htc slide with T-mobile and it worked just fine. Yesterday I unlocked it via IMEI to start using it with Claro -Puerto Rico-, so I switched to the Claro SIM card and it has no signal and it shows the (No Service) message, when the phone starts up it gets 2 white signal bars and quickly drops to no service, I checked the APN, the antenna, changing ROMs, set the band to GSM only, I've searched all over the net for solutions and nothing seems to work. :/ Then I switched back to the T-mobile SIM and I have no service either, so it seems as if unlocking it messed up the signal completely and it has rendered the phone useless.
Any ideas on what can be happening or how to solve this?
Thanks.
Click to expand...
Click to collapse
I believe it needs a hardware SIM unlock. This can only be done using a hardware device such as the XTC Clip, but I could be wrong. *shrug*

[Q] help!3G connectivity has gone from my phone

my phone can not connect to 3G networks in most of our city, while it used to work just fine in these same places. at first i thought there must be something wrong with the carrier's base stations. but today i tested my SIM card on another LU6200(Korean version of Nitro HD) and it works perfectly both on 3G and 2g networks on that phone. but when i put it back into my phone, it can only get 2G signal. if i set the Preferred Network Type to WCDMA ONLY, it got no signal with just a cross on the signal bar. i have to put it back into GSM ONLY mode to receive signal.if i go out, i can get partial 3G connectivity here and there, but not consistently. sometimes even if i have full 3G bar signals on the status bar, i can not make calls or connect to the internet.i've got this problem probably after i tried to forcibly go into the Phone Info menu.i got repetitive " the process com.android.phone has stopped unexpectedly" promps , and i just ignored it and tried again. now ,2 options are missing from the menu, LTE/WCDMA/GSM and LTE Global.in place of them, it's UNKNOWN. i already tried flashing KDZ package of no avail. Does this mean a hardware malfucntion or software glitch?Please help!Thank you in advance

No one can answer?

freefall12 said:
No one can answer?
Click to expand...
Click to collapse
Ask att store for a different sim card i had lte issues and new sim card helped try that
LG NITRO-N XDA APP

Well you do HAVE GSM only selected. THATS 2G(EDGE)
for 3G you would need to select WCDMA

hyelton said:
Well you do HAVE GSM only selected. THATS 2G(EDGE)
for 3G you would need to select WCDMA
Click to expand...
Click to collapse
^^^So true
LG NITRO-N XDA APP

no, if i select wcdma, i got no signal.it should be hardware problem

No service - HELP!

Hi Everyone.
Stock O2 ICS- rooted - bootloader unlocked
I've recently bought used HTC One V locked to O2. Problem is gsm service never worked for me.
WiFi, Bluetooth, GPS are fine but emergency call only.
I've tried different sim, 2 custom roms, hard reset and no lucky.
Under mobile network setting I cannot swap between WCDMA only - Auto - GSM only, it is sticked to WCDMA/GSM Auto only
When push *#*#4363#*#* Cannot change network mode too, WCDMA preferred fixed only, if going to radio band selection cannot choose any (Automatic, EURO Band etc) just got message "Set [automatic or any] Unsuccessful.
What is weird, When I turn mobile data on with correct APN for my provider (currently giffgaff) I have gprs running and can send and receive data, but with my other phones I had before my service has been alwaysfast as 3G and HSDPA, not "G" like now.
Please see below my screenshots, I've checked my mobile network with many apps and there is what I've found

Ok this may seem a very stupid question but it happened more than once. Are you using the little piece that covers the sim card? That has contacts in it, without it there is no signal

mr_nooby said:
Ok this may seem a very stupid question but it happened more than once. Are you using the little piece that covers the sim card? That has contacts in it, without it there is no signal
Click to expand...
Click to collapse
thanks, but no lucky

osstis said:
thanks, but no lucky
Click to expand...
Click to collapse
If you still have warranty, run a ruu so it goes back to stock, and take it to the HTC centre. If you are lucky they will recognize it as hardware problem and give you a new one. Remember to tell them it never worked, and if they ask about root or stuff, you don't know about it

No I don't have a warranty (it's second hand and a have no seller contact anymore), otherwise I would not asking here. Looking for somebody who solved this, if.

Can't get 3g to work

Hello, I just got a Note 2, I got it on amazon.
But I can't get to connect to my 3g network. I live in el salvador, and our 3g network works on 900mhz which my Gt-n7100 suppose to work, but it just fails anytime.
At first I fought it was a fake note, but everything looks good, amazing screen, good s-pen, really fast, touchwiz, etc.
(I have a note I so I can compare) . the only thing is that it says that it has a total of 24gb of storage (weird).
I downloaded the genuine app, and it says that It is genuine.
So how can I make it work , If I check GSM only, it does connect to the network (calls, data just GPRS even tough EDGE should work) , but when I check WCDMA only It finds the network but it fails on registering.
I tried to update on the phone, but it fails, I will try with KIES and see if that works.
But please help.
Thanks
P.S I should note that my modem number is XX (which it's supposed to be europe countries) does it has anything to do?
I remember a while ago that I flashed an htc, I had to flash the radio band, so It can pick my countries frequencies? could that be?
thanks

dcuchillas said:
Hello, I just got a Note 2, I got it on amazon.
But I can't get to connect to my 3g network. I live in el salvador, and our 3g network works on 900mhz which my Gt-n7100 suppose to work, but it just fails anytime.
At first I fought it was a fake note, but everything looks good, amazing screen, good s-pen, really fast, touchwiz, etc.
(I have a note I so I can compare) . the only thing is that it says that it has a total of 24gb of storage (weird).
I downloaded the genuine app, and it says that It is genuine.
So how can I make it work , If I check GSM only, it does connect to the network (calls, data just GPRS even tough EDGE should work) , but when I check WCDMA only It finds the network but it fails on registering.
I tried to update on the phone, but it fails, I will try with KIES and see if that works.
But please help.
Thanks
P.S I should note that my modem number is XX (which it's supposed to be europe countries) does it has anything to do?
I remember a while ago that I flashed an htc, I had to flash the radio band, so It can pick my countries frequencies? could that be?
thanks
Click to expand...
Click to collapse
Check your APN settings. I got this problem few days ago. Just set ur apn to default. Use this app. https://play.google.com/store/apps/details?id=com.tweakker
As for the 24 gb, u might have gotten the 32gb variant.
Smack that thanks button if I helped.
N7105 Note 2 LTE International powered by Illusion ROM 2.6
Plasma Kernel 2.02
Sent from a small country named Singapore

thanks, but it's not that the data isn't working, I cannot even connect to the WCDMA network so no calls, no data.
It works on "GSM ONLY" well kinda, cause in my last phone when I was on GSM only it had EDGE connection, but this one has GPRS.
I have set the correct APN for my carrier. But I cannot even connect to the network.
Irwenzhao said:
Check your APN settings. I got this problem few days ago. Just set ur apn to default. Use this app. https://play.google.com/store/apps/details?id=com.tweakker
As for the 24 gb, u might have gotten the 32gb variant.
Smack that thanks button if I helped.
N7105 Note 2 LTE International powered by Illusion ROM 2.6
Plasma Kernel 2.02
Sent from a small country named Singapore
Click to expand...
Click to collapse

dcuchillas said:
Hello, I just got a Note 2, I got it on amazon.
But I can't get to connect to my 3g network. I live in el salvador, and our 3g network works on 900mhz which my Gt-n7100 suppose to work, but it just fails anytime.
At first I fought it was a fake note, but everything looks good, amazing screen, good s-pen, really fast, touchwiz, etc.
(I have a note I so I can compare) . the only thing is that it says that it has a total of 24gb of storage (weird).
I downloaded the genuine app, and it says that It is genuine.
So how can I make it work , If I check GSM only, it does connect to the network (calls, data just GPRS even tough EDGE should work) , but when I check WCDMA only It finds the network but it fails on registering.
I tried to update on the phone, but it fails, I will try with KIES and see if that works.
But please help.
Thanks
P.S I should note that my modem number is XX (which it's supposed to be europe countries) does it has anything to do?
I remember a while ago that I flashed an htc, I had to flash the radio band, so It can pick my countries frequencies? could that be?
thanks
Click to expand...
Click to collapse
i think you have 32gb version..plus minus all apps in the phone you got 24gb of storage.
about your 3g,i dunno about that because there many fix solution...some said just factory reset,some said modem is the problem and flash other modem may fix it...you can try bring it to local shop and ask them

Just one question, If the genuine app, says that it is genuine? that's trustable?
I am just worried that It might be a knock off after all, but everything on the phone seems excellent.

dcuchillas said:
thanks, but it's not that the data isn't working, I cannot even connect to the WCDMA network so no calls, no data.
It works on "GSM ONLY" well kinda, cause in my last phone when I was on GSM only it had EDGE connection, but this one has GPRS.
I have set the correct APN for my carrier. But I cannot even connect to the network.
Click to expand...
Click to collapse
go to setting >more setting>mobile network>network mode>click GSM/WCDMA (auto mode)

sora9009 said:
go to setting >more setting>mobile network>network mode>click GSM/WCDMA (auto mode)
Click to expand...
Click to collapse
I've done that, but it only works on GPRS not in 3g .
Also, when I check for the network operators on all the phones I got, I always get all the carriers, but in this phone I can only get one.

dcuchillas said:
Just one question, If the genuine app, says that it is genuine? that's trustable?
I am just worried that It might be a knock off after all, but everything on the phone seems excellent.
Click to expand...
Click to collapse
just connect it to kies or dial *#0*#

sora9009 said:
just connect it to kies or dial *#0*#
Click to expand...
Click to collapse
I tried the code and It took me to some sort of testing thing

dcuchillas said:
I tried the code and It took me to some sort of testing thing
Click to expand...
Click to collapse
fake note 2 do not have that testing thing..so you are good :laugh:
I've done that, but it only works on GPRS not in 3g .
Also, when I check for the network operators on all the phones I got, I always get all the carriers, but in this phone I can only get one.
Click to expand...
Click to collapse
cant really help you about this

sora9009 said:
fake note 2 do not have that testing thing..so you are good :laugh:
cant really help you about this
Click to expand...
Click to collapse
Well thanks, that's a relief.
I tried a factory reset right now, will try to update later.

Could it be that I have another model rom?
cause in the settings I don't get WCDMA/GSM , but LTE/WCDMA/GSM. But the GT-N7100 doesn't have LTE.

dcuchillas said:
Could it be that I have another model rom?
cause in the settings I don't get WCDMA/GSM , but LTE/WCDMA/GSM. But the GT-N7100 doesn't have LTE.
Click to expand...
Click to collapse
n7105 rom cannot be installed in n7100 phone..different hardware
maybe some expert here can help

Please If anyone can Help.
I bought this phone because my old phone (xperia ion) only supported the 900mhz frequency on GSM, so I could only get EDGE speed.
This phone (NOTE 2) it's supposed to support 900mhz in the HSDPA, but I can't get it to work only on GSM and with GPRS (slower than EDGE)
PLease, I really need help

Okay, so I was trying to do the ARIZA patch, because my serial number is 00000000 and I couldn't connect to any networks.
When I put my phone into download mode, it was all in korean and it says product name: SHV-E250S, which is supposed to be the korean note, but it doesn't have an antenna like the phones I have seen.
Could this be that this phone is really screwed???? Cause it like a gt-n7100 on the rom but has LTE, and doesn't pick any network .
If this real the korean it only works in this band 1900, 2100, which none of my carriers in my country use them...
Would you say I try to root it and try to patch??

Moto g5 no 3g and no 2g- no calls. Only 4g HELP!

hello, friends. Specially those who are worried about the so many problems with signal moto g5 users face. Im here asking for help. i have a moto g5 (cedric) i was working almost fine with oreo stock. i say almost because some times when i lost signal it didnt recover like any other phone woud, i had to reboot. now from almost a week ago i had lost signal and now i only have 4g. no 3G and no 2G, so no voice calls going out nor incoming ones. i ve done hard resets, flashing stock 7.0 and going back to stock 8.1 and nothing. on saw 3g for a little moment coming back to oreo. i also flashed carbon rom wich is android 9.0 to see if a custom rom helped but it didnt. i only have internet now and sms. and this is very frustrating. ive checked persist folder and everything is correct there. i have my imei right, this phone is like new but not being able to call is like not having a phone at all. also why i have to reboot to recover missing signal? is just a pain. this moto phones are really problematic when it comes to Signal management.
things to consider too: im currently on stock oreo, just rooted to be able to check if persist folder was correct and to backup efs folder. also my operator uses 900mhz band as 2g and 3g wich is an european frecuency not common in latin america. maybe that has something to do with problems im facing. the rom has cedric_latam_cust as the baseband. can anyone help me find one frome europe? im wondering if flashing one from there could help. the weird thing is that it was working before with that baseband.
so many people losing 4g, i could be glad if that was my case and had 2g and 3g only with full internet and calling capabilities.
im sorry i know it is a little bit too much information. but i really need the help

ajmdve said:
hello, friends. Specially those who are worried about the so many problems with signal moto g5 users face. Im here asking for help. i have a moto g5 (cedric) i was working almost fine with oreo stock. i say almost because some times when i lost signal it didnt recover like any other phone woud, i had to reboot. now from almost a week ago i had lost signal and now i only have 4g. no 3G and no 2G, so no voice calls going out nor incoming ones. i ve done hard resets, flashing stock 7.0 and going back to stock 8.1 and nothing. on saw 3g for a little moment coming back to oreo. i also flashed carbon rom wich is android 9.0 to see if a custom rom helped but it didnt. i only have internet now and sms. and this is very frustrating. ive checked persist folder and everything is correct there. i have my imei right, this phone is like new but not being able to call is like not having a phone at all. also why i have to reboot to recover missing signal? is just a pain. this moto phones are really problematic when it comes to Signal management.
things to consider too: im currently on stock oreo, just rooted to be able to check if persist folder was correct and to backup efs folder. also my operator uses 900mhz band as 2g and 3g wich is an european frecuency not common in latin america. maybe that has something to do with problems im facing. the rom has cedric_latam_cust as the baseband. can anyone help me find one frome europe? im wondering if flashing one from there could help. the weird thing is that it was working before with that baseband.
so many people losing 4g, i could be glad if that was my case and had 2g and 3g only with full internet and calling capabilities.
im sorry i know it is a little bit too much information. but i really need the help
Click to expand...
Click to collapse
You could get your country firmware from here.
https://mirrors.lolinet.com/firmware/moto/cedric/official/
And don't flash older version firmwares as it will brick your device.and you should try a different sim card in your device to know if there is a problem in sim card or the device.

riyan65 said:
You could get your country firmware from here.
https://mirrors.lolinet.com/firmware/moto/cedric/official/
And don't flash older version firmwares as it will brick your device.and you should try a different sim card in your device to know if there is a problem in sim card or the device.
Click to expand...
Click to collapse
Thank you friend. I was able to download and flash an euro rom. Just to find that the baseband was not changed after flashing it. I even tried erasing modem and reloading non_hlos but I still have latam baseband on settings.

ajmdve said:
Thank you friend. I was able to download and flash an euro rom. Just to find that the baseband was not changed after flashing it. I even tried erasing modem and reloading non_hlos but I still have latam baseband on settings.
Click to expand...
Click to collapse
So after flashing the firmware did you get your calls back???

riyan65 said:
So after flashing the firmware did you get your calls back???
Click to expand...
Click to collapse
Not at all. I'm still having 4g only. As I mentioned before, in status it is still showing the same baseband that was in first place. One from Latin America. But I was trying to get it changed to an Europe one by fishing a new rom from O2. But it didn't change.

ajmdve said:
Not at all. I'm still having 4g only. As I mentioned before, in status it is still showing the same baseband that was in first place. One from Latin America. But I was trying to get it changed to an Europe one by fishing a new rom from O2. But it didn't change.
Click to expand...
Click to collapse
Maybe you could try changing the radio band in phone app.
Dial *#*#4636#*#* then phone info then select radio band which give you calls.

riyan65 said:
Maybe you could try changing the radio band in phone app.
Dial *#*#4636#*#* then phone info then select radio band which give you calls.
Click to expand...
Click to collapse
There I only have 2 options, automatic and United States. I have chosen automatic but still the same

ajmdve said:
There I only have 2 options, automatic and United States. I have chosen automatic but still the same
Click to expand...
Click to collapse
Maybe you should try pixel experience ROM(pie) or retin firmware as I was on retin and I got many choices such as Europe, United States, some frequency. Maybe you should try pixel experience first as it going fix network problem many times, then you can try retin firmware.

riyan65 said:
Maybe you should try pixel experience ROM(pie) or retin firmware as I was on retin and I got many choices such as Europe, United States, some frequency. Maybe you should try pixel experience first as it going fix network problem many times, then you can try retin firmware.
Click to expand...
Click to collapse
I've tried pixel Xperience But it didn't help. I'm going to look about retin. At this point I even changed imei just to see if it helped. But it didn't. I'm thinking it might be a hardware problem

ajmdve said:
I've tried pixel Xperience But it didn't help. I'm going to look about retin. At this point I even changed imei just to see if it helped. But it didn't. I'm thinking it might be a hardware problem
Click to expand...
Click to collapse
If you are not able to get signal only, then how are you able to 4g???
Can you post some screenshots of the problem and the sim status(available in about phone (settings))

riyan65 said:
If you are not able to get signal only, then how are you able to 4g???
Can you post some screenshots of the problem and the sim status(available in about phone (settings))
Click to expand...
Click to collapse
In my country we have 3 mobile operators. Movistar won't work (don't know why), the other works perfect on my phone. Mine from a week ago only work 4g. This afternoon it worked 3g but when I rebooted it stopped. Only 4g again. So no calls.
The first screenshot is with 3g and no signal
The other 2 is when rebooted having activated 4g

ajmdve said:
In my country we have 3 mobile operators. Movistar won't work (don't know why), the other works perfect on my phone. Mine from a week ago only work 4g. This afternoon it worked 3g but when I rebooted it stopped. Only 4g again. So no calls.
The first screenshot is with 3g and no signal
The other 2 is when rebooted having activated 4g
Click to expand...
Click to collapse
Did you try the sim card in other device???

riyan65 said:
Did you try the sim card in other device???
Click to expand...
Click to collapse
I came from a couple of phonesin last 2 months, htc one, Galaxy S3, Galaxy j2 pro, and iPhone 5s just right before this moto and neverb had any problem. Right now I used my sim card with my wife's iPhone 4s and my mom's 5c, even an old Galaxy spica and all worked with it. I'm frustrated

This g5 worked for a week with 3g and 2g normally. But a week ago started this nightmare

ajmdve said:
I came from a couple of phonesin last 2 months, htc one, Galaxy S3, Galaxy j2 pro, and iPhone 5s just right before this moto and neverb had any problem. Right now I used my sim card with my wife's iPhone 4s and my mom's 5c, even an old Galaxy spica and all worked with it. I'm frustrated
Click to expand...
Click to collapse
It seems the problem is API as you are getting 4g but no calls then it could probably API only, try editing the API or creating a new one. You can get the API configuration from the internet or the device which you get calls.

riyan65 said:
It seems the problem is API as you are getting 4g but no calls then it could probably API only, try editing the API or creating a new one. You can get the API configuration from the internet or the device which you get calls.
Click to expand...
Click to collapse
Do you mean APN?

ajmdve said:
Do you mean APN?
Click to expand...
Click to collapse
Yeah

riyan65 said:
Yeah
Click to expand...
Click to collapse
Changed APN and nothing improved.

ajmdve said:
Changed APN and nothing improved.
Click to expand...
Click to collapse
Did you try a different sim card in the device, does it working??? And does your service provider support LTE over call??? If it doesn't then change the preferred network type to LTE/CDMA/UMTS auto(prl). And switch your sim card to sim slot 2.

riyan65 said:
Did you try a different sim card in the device, does it working??? And does your service provider support LTE over call??? If it doesn't then change the preferred network type to LTE/CDMA/UMTS auto(prl). And switch your sim card to sim slot 2.
Click to expand...
Click to collapse
I haven't tried another from my company. But from other it does work well. Mine doesn't have lte over call. So when I try to call it switches to 3g and right there loses signal at all. I have to restart the phone to get 4g again