Develop Bugs

I747m telus network problem

I have a problem with my telus i747m, I have unlocked it and am trying to use it on rogers but cant. I have tried different sims.
My problem is I dont have a network connection all the time. When I do have a connection as soon as i get a text or try to make a call the phone looses the network connection, when making a call the call gets through but the phone looses connection and the call then gets cut.
no data connection at all. I have rooted the phone and tried flashing the modem posted in development section but it did not help.
do you guys think its a hardware problem, or software?
also when no network is connected and I try searching for a provider it ask me to insert a sim. I have tried different sims and both work fine in another s3 i have.

The phone has a strong signal when it connects to the network and then as soon as the 4g pops up or after a couple of seconds the signal just drops and loses the connection. Then it will keep on getting a signal and instantly drop the network connection over and over again. i have another s3 i can try swapping parts but i dont know what to swap.
hellpppp meeeee!!!

Ok i used rf nv manager andbthe imei is fine.
Sent from my SGH-I747M using xda app-developers app

Anyone any imput. Im stumped
Sent from my SGH-I747M using xda app-developers app

js2021 said:
Anyone any imput. Im stumped
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
There is a specific Rogers modem that you can try flashing, other than that, I'm stumped.

finnmacool said:
There is a specific Rogers modem that you can try flashing, other than that, I'm stumped.
Click to expand...
Click to collapse
lol yeah its a odd problem. ill try flashing that, the modem listed here http://forum.xda-developers.com/showthread.php?t=1831898 says rogers, telus, bell is this what you are talking about?
thanks

update so i was about to try flashing the modem again, i poped in the sim turned on the phone and noticed the signal wasnt dropping when wifi was connected. I then shut of wifi and as soon as the 4g symbol poped up the network connection dropped, I then shut off data and got the signal back i havnt lost it sinse and i made a 40 minute call to rogers with no issue; I have full bars.
so it seems when data is turned on the network gets disconnected. hope this helps in finding the problem.
i played with the settings a bit and this is what happen:
GSM only + data enabled = phone works fine
HSPA only + data enabled = as soon as 4g pops up network drops
GSM/HSPA (auto) + data enable = as soon as 4g pops up network drops
GSM/HSPA/LTE(auto) + data enable = as soon as 4g pops up network drops
all of the settings work if data is disabled.

I have just flashed the latest bell jelly bean leak and still the same problem with data turned on phone loses connection.

I have the same setup (Telus SGS3 with Rogers sim) as you but don't encounter that problem. You might want to try to use your warranty for the problem as it shouldn't do that on stock in the first place.
Sent from my SGH-I747M using xda premium

Are you using the right rogers apn ?
try the modem: MVLLE8

No i tried the latest rom/modem from rogers. I will try that one and see what happens.
Sent from my SGH-I747M using xda app-developers app

js2021 said:
No i tried the latest rom/modem from rogers. I will try that one and see what happens.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
Keep us posted !!!

cy-rock said:
Are you using the right rogers apn ?
try the modem: MVLLE8
Click to expand...
Click to collapse
yeah i tried manually setting the apn too. didnt make a differance, also tried the rogers mvlle8 modem no differance basically the phone works with data off, or only gsm with data on.
I have another s3 i thought it could be the sim holder or something tried swapping that, it didnt change anything. do you guys think i should try swapping the antenna

js2021 said:
yeah i tried manually setting the apn too. didnt make a differance, also tried the rogers mvlle8 modem no differance basically the phone works with data off, or only gsm with data on.
I have another s3 i thought it could be the sim holder or something tried swapping that, it didnt change anything. do you guys think i should try swapping the antenna
Click to expand...
Click to collapse
its getting tricky to play with that unless you have a good knowledge about wat you doiong and that you may have no offense here
wat about the warranty ?

I bought it used and have already opened it up to try swapping parts wwith my other s3, also have flashed it with custom rom and im guessing the previous owner did aswell because the flash counter was at 5 I think ive voided the warranty. Im pretty good at taking things apart and not afraid lol. I was a mechanic so yeah.
Sent from my SGH-I747M using xda app-developers app

Also last phone i warrantied i got back one month later
Sent from my SGH-I747M using xda app-developers app

any thing else i can try to flash, or any test i could run.

js2021 said:
I have a problem with my telus i747m, I have unlocked it and am trying to use it on rogers but cant. I have tried different sims.
My problem is I dont have a network connection all the time. When I do have a connection as soon as i get a text or try to make a call the phone looses the network connection, when making a call the call gets through but the phone looses connection and the call then gets cut.
no data connection at all. I have rooted the phone and tried flashing the modem posted in development section but it did not help.
do you guys think its a hardware problem, or software?
also when no network is connected and I try searching for a provider it ask me to insert a sim. I have tried different sims and both work fine in another s3 i have.
Click to expand...
Click to collapse
Check your APN settings. On stock, when I switched sim cards, the secondary provider didn't have any and they needed to be added manually.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I tried manually setting the apn, but no luck.
Sent from my SGH-I747M using xda app-developers app

im going to smash this thing with a hammer.
ok no im not but i feel like doing it.

Tmobile S4 on AT&T cannot connect to LTE help!

Hey everyone!
So I picked up a tmobile s4 to use on ATT since I read it was the most unlocked due to bands / bootlocker. I unlocked it via the method described on this site via the debug menu.
Popped in ATT sim, everything looked fine initially.
1. I'm only getting 4G in an LTE area. device hasn't picked up any LTE anywhere yet.
2. When I go under "Network Mode" and select "LTE/GSM/WCDMA (auto connect) the signal dies out and it always reverts back to GSM/WCDMA"
3. I've called ATT a few times and triple checked that I'm on an Android LTE data plan, so that's not an issue. ATT techs suggested it could be a device issue and maybe I should take it into their tech center.
4. Tried to set up ATT Visual Voicemail, that failed also.
So can it be a Sim issue? Maybe something on tmobiles side? Since device was never active on their network. A lemon S4?
I've run out of options
Any help would be appreciated.
TIA!

qidrox said:
Hey everyone!
So I picked up a tmobile s4 to use on ATT since I read it was the most unlocked due to bands / bootlocker. I unlocked it via the method described on this site via the debug menu.
Popped in ATT sim, everything looked fine initially.
1. I'm only getting 4G in an LTE area. device hasn't picked up any LTE anywhere yet.
2. When I go under "Network Mode" and select "LTE/GSM/WCDMA (auto connect) the signal dies out and it always reverts back to GSM/WCDMA"
3. I've called ATT a few times and triple checked that I'm on an Android LTE data plan, so that's not an issue. ATT techs suggested it could be a device issue and maybe I should take it into their tech center.
4. Tried to set up ATT Visual Voicemail, that failed also.
So can it be a Sim issue? Maybe something on tmobiles side? Since device was never active on their network. A lemon S4?
I've run out of options
Any help would be appreciated.
TIA!
Click to expand...
Click to collapse
are you using stock ROM?

Rattles said:
are you using stock ROM?
Click to expand...
Click to collapse
Yes I am, I guess I should've mentioned that

Apparently my data stopped working now too. No data at all

qidrox said:
Apparently my data stopped working now too. No data at all
Click to expand...
Click to collapse
Ok so after changing some options around in network i have 4G back up and running. Its on WCDMA/GSM now.

Did you check the apn to make sure its correct for att?
Sent from my SGH-M919 using xda premium

qidrox said:
Hey everyone!
So I picked up a tmobile s4 to use on ATT since I read it was the most unlocked due to bands / bootlocker. I unlocked it via the method described on this site via the debug menu.
Popped in ATT sim, everything looked fine initially.
1. I'm only getting 4G in an LTE area. device hasn't picked up any LTE anywhere yet.
2. When I go under "Network Mode" and select "LTE/GSM/WCDMA (auto connect) the signal dies out and it always reverts back to GSM/WCDMA"
3. I've called ATT a few times and triple checked that I'm on an Android LTE data plan, so that's not an issue. ATT techs suggested it could be a device issue and maybe I should take it into their tech center.
4. Tried to set up ATT Visual Voicemail, that failed also.
So can it be a Sim issue? Maybe something on tmobiles side? Since device was never active on their network. A lemon S4?
I've run out of options
Any help would be appreciated.
TIA!
Click to expand...
Click to collapse
Dial *#*#4636*#*# go under phone and scroll down and select the mode you want then reboot.
Sent from my SGH-M919 using Xparent Skyblue Tapatalk 2

Soldier 2.0 said:
Dial *#*#4636*#*# go under phone and scroll down and select the mode you want then reboot.
Sent from my SGH-M919 using Xparent Skyblue Tapatalk 2
Click to expand...
Click to collapse
Tried doing that. It says " USSD Code running" then it stops and states "Unable to process request"... I dont think that was normal?

Yeaaaayuh!
qidrox said:
Tried doing that. It says " USSD Code running" then it stops and states "Unable to process request"... I dont think that was normal?
Click to expand...
Click to collapse
Figured it out!!! Did a google search and noticed my APN values were wayyy off. Changed them. BAM LTE!! :laugh::good:
Thanks to all that helped!

Share those setting to help others !!!!!!!!

nmccready said:
Share those setting to help others !!!!!!!!
Click to expand...
Click to collapse
Go to settings> more networks>mobile networks> access point network> and change your settings to look like these....
In the "APNs" window just hit the + button to creat a new APN
Sent from my SGH-M919 using XDA Premium 4 mobile app

Thank you!
I also found the setting from here:
https://www.youtube.com/watch?v=gMyD8zqk-Hg which led to here: http://forum.xda-developers.com/showthread.php?t=2336085 .
The main end game fix was that ATT had my IMIE # incorrectly set. Once they fixed that my LTE was a go!
:good: :laugh:

[Q] Enable Mobile Hotspot on Unlocked ATT Galaxy Note 2

We have a Galaxy Note 2 from ATT now. Just upgraded, so we're not using it. We want to take it to Europe to use as a phone and a hotspot for our computers on our trip. I've read that people do that with unlocked Androids and a European SIM.
I was able to unlock the phone with no problem using a data only T-Mobile SIM card in the process. The problem is that I can't turn the Mobile Hot Spot on. I've tried with the valid data only T-mobild SIM installed. When I try to turn the hotspot on, it says that either the network is not available, or there's an invalid SIM. I'm worried that it's the ATT restrictions on the phone that aren't going away even if the phone is unlocked, and there's a different SIM in place.
Does anyone know what we have to do to enable the hotspot, so that this phone can be used in Europe?
Thanks.

Try with wifix.apk

androidlabs said:
Try with wifix.apk
Click to expand...
Click to collapse
Thanks. That looks like a good app to fix problems connecting to external wifi sources. However, I want my phone to BE the wifi source when in Europe. Still looking for a solution.

artbytes said:
Thanks. That looks like a good app to fix problems connecting to external wifi sources. However, I want my phone to BE the wifi source when in Europe. Still looking for a solution.
Click to expand...
Click to collapse
Sorry my bad you should go for foxfi.apk to fix locked wifi and usb tetharing and its tested by me (if it doesn't work for u then there are several more apks. search). Good luck

artbytes said:
We have a Galaxy Note 2 from ATT now. Just upgraded, so we're not using it. We want to take it to Europe to use as a phone and a hotspot for our computers on our trip. I've read that people do that with unlocked Androids and a European SIM.
I was able to unlock the phone with no problem using a data only T-Mobile SIM card in the process. The problem is that I can't turn the Mobile Hot Spot on. I've tried with the valid data only T-mobild SIM installed. When I try to turn the hotspot on, it says that either the network is not available, or there's an invalid SIM. I'm worried that it's the ATT restrictions on the phone that aren't going away even if the phone is unlocked, and there's a different SIM in place.
Does anyone know what we have to do to enable the hotspot, so that this phone can be used in Europe?
Thanks.
Click to expand...
Click to collapse
The thing that sticks out to me is that you actually need the correct Sim card that is provisioned for phone service.. I'm assuming this "data only sim" was provisioned for a tablet and therefore can't make any calls... the network unavailable message will show up even with no Sim installed and trying to enable a hotspot. You need a valid cell service in order to hotspot.

Hope Getting the Right SIM will do it.
getyroks said:
The thing that sticks out to me is that you actually need the correct Sim card that is provisioned for phone service.. I'm assuming this "data only sim" was provisioned for a tablet and therefore can't make any calls... the network unavailable message will show up even with no Sim installed and trying to enable a hotspot. You need a valid cell service in order to hotspot.
Click to expand...
Click to collapse
Thanks. I hope that's what the problem is. It would make things simpler to be sure. I just didn't want to get there and then find out it wasn't going to work. In the meantime, I found my old Galaxy S 3. I managed to unlock it, root it, and install basic ROM. Thought maybe that would work, as well. I'll know by next week.

Sprint M8 wont connect to 4G

I flashed an aosp rom and ended up toggling my network from LTE to 2G and to 3G. Now I cant connect to LTE at all I even RUUed back to stock unrooted and thats didnt fix anything. Is there anything left I can do or any apn settings i can try im lost?

Any suggestions. Sprint wont fix it since its been rooted. I think the LTE sim card is a problem and wont accept a signal from the tower.

shawn1482 said:
I think the LTE sim card is a problem and wont accept a signal from the tower.
Click to expand...
Click to collapse
Have you tried another sim or that sim in another phone? How about reseating the sim in your phone after a fresh boot. Have you checked in the forum for the rom you installed?
Sent from my One M8 using XDA Free mobile app

Phone Stuck Showing "Searching / No Service"

Hello all. I purchased a edge+ today but whenever I insert a sim, the phone stays on searching. I made sure that I rebooted the device and I also tried re-seating the sim many times. I believe the device is unlocked and the imei/esn is in clean standing with T-Mobile. I tried a MetroPCS sim card and it stayed on searching, same thing happened with a Verizon sim. However when I inserted the T-Mobile sim, it sometimes says no service but ever since I rebooted the device, it stays on "searching" no matter which sim is installed. I find this whole ordeal frustrating since the signal bars show up for the MetroPCS and T-Mobile sim but with Verizon nothing happens. Any help would be greatly appreciated.

Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com

knite75 said:
Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com
Click to expand...
Click to collapse
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?

MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
gazasalim said:
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?
Click to expand...
Click to collapse

knite75 said:
MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
Click to expand...
Click to collapse
Yeah I know they are which baffles me as to why it isn't working. I tried adding a custom APN but same thing happens. I get calls/sms on WiFi but if I turn it off I get "No Service"

Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk

erick161 said:
Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk
Click to expand...
Click to collapse
I went and it turns out the device is blacklisted. This whole time I was rolling with the imei in the phone, after checking last night, I noticed that the imei on the back of the device differs from the one that's actually on the software. I was able to get in touch with the seller and he's coming back to give me my money back. Guess a mod can mark this thread closed.