Yesterday I noticed that my phone is no longer able to send or receive phone calls.
It's got a good 4G signal and data works, but the "CDMA (3g) Signal Info" in the Advanced Signal Status application is 0%.
I don't know if that zero CDMA signal is normal if you're on 4G, so maybe this is a red herring.
I'm considering trying to ODIN the MK2 Modem onto it. Any other ideas?
You're probably on LTE only mode use an app like phone info to change the radio bands back to lte/CDMA (prl) auto mode.
Sent from my iPad using Tapatalk HD
Flashing the MK2 modem leaves me at state "No Service". This is not an improvement.
It's now asking me to switch to Global mode.
I tried using "Phone Info",
Network Type is 13 (LTE).
Phone Type is 2 (CDMA).
SIM State is 5 (Ready),
OK, any other ideas?
Damn wish I could help this is a weird one. Do you think you did anything before hand that might have affected it?
Just to be clear, when you go to mobile networks settings your network mode is set to CDMA/LTE?
joshm.1219 said:
Damn wish I could help this is a weird one. Do you think you did anything before hand that might have affected it?
Just to be clear, when you go to mobile networks settings your network mode is set to CDMA/LTE?
Click to expand...
Click to collapse
Yup, it's a strange one.
Network mode is LTE/CDMA.
More data - I just plugged in my UK SIM. It came up, asked me to switch to Global mode, and now shows coverage as AT&T UK, which is what it has done in the past. GSM is apparently working OK. Network is AT&T HSPA, Roaming mode.
Power off, re-insert the Verizon SIM. Service says "Emergency Calls Only" due to Global mode.
Switching to LTE/CDMA gives me an "Attention" box saying "Searching for LTE/CDMA" with OK and Cancel buttons.
Pressed "OK" and now, instead of "No Service" it says "Verizon Wireless".However, still no phone calls in or out.
I just decided to use Safestrap to install Hyperdrive, figuring that if it was something corrupt in the base ROM it'd be obvious.
Unfortunately, no luck - it has the same "No Service" problem, and still can't make or receive calls.
I think I've got broken hardware.
For the record: Factory data reset brought it back to life.
I haven't any idea what did this, but I don't care since it's now working and I don't need to stand in line at the vzw store.
k1mu said:
For the record: Factory data reset brought it back to life.
I haven't any idea what did this, but I don't care since it's now working and I don't need to stand in line at the vzw store.
Click to expand...
Click to collapse
If I'd have seen this a few hours ago, could have saved you some aggravation. I've seen on here before where a factory reset was the only thing that seemed to fix this weird issue. Glad you got it fixed. If I remember correctly that user was messing with their apn settings.
Sent from my SCH-I545 using XDA Premium 4 mobile app
I don't mean to hijack the thread, but I had a similar (but not the same) situation yesterday, and hope that I can contribute help to anyone in the future using the search function.
I had fully-functional 4G and 3G but could not make/receive calls. I could even text. The phone showed 3 bars of signal, but when I called a number, it went to the circle with the line through it. The message said something like, "Out of network range". (I was right in the heart of my home city).
I rebooted and it said, "invalid PUK"
Anyway, I ended up taking the SIM card out and reinserting it, and the problem was fixed.
I am using the rooted/deodexed international debloated stock 4.3 rom. I wonder if my next step would be to unlock the SIM.
Anyway, I hope this helps someone....and glad to hear that you got your problem fixed!
Steve
probs
k1mu said:
For the record: Factory data reset brought it back to life.
I haven't any idea what did this, but I don't care since it's now working and I don't need to stand in line at the vzw store.
Click to expand...
Click to collapse
Which restore did you use? sory to bump old thread but I still had this issue after restore- on MK2
mghwater said:
Which restore did you use? sory to bump old thread but I still had this issue after restore- on MK2
Click to expand...
Click to collapse
Did you use Odin?
http://forum.xda-developers.com/showthread.php?t=2578209
That should definitely work.
mghwater said:
Which restore did you use? sory to bump old thread but I still had this issue after restore- on MK2
Click to expand...
Click to collapse
I booted into stock recovery and used that to perform a factory reset.
Forgot about the reset after Odin, thanks-
Unfricken believable this worked, Thank you! I suddenly had the same problem with my S4 from Verizon on MK2 I tried to make calls but I could not get a Dial Tone and it would drop the call all at the same time go to no service mode. It was actually rooted but on stock rom, worked fine for 3 months and all of a sudden I kept dropping signals, rebooting, etc didn't help. I even used Safestrap 3.71 to do a recovery of stock rom to day one stock rom. (When I first got the phone and rooted) AND I did a factory state reset in Safestrap and that did not even fix the problem. I was going to try Odin reset, but I tried the Factory reset using the phone's options by going into "Settings"-->"Accounts"-->"Backup and Reset" and I unchecked data backup and automatic restore as I already had backed up my contacts, etc. using Samsung Kies 3. I just clicked "Factory data reset" and confirmed the options when prompted and after reboot, BAM! everything is working like day one!
My only culprit maybe is that this may have occurred when I tried to do a unlock via Service Mode menu and it screwed up with the Global settings or so and from there it kept asking me if I wanted to switch to global mode. Which it still worked fine for 2 weeks after the service menu mode. What I thought my phone was unlocked, I'm still not sure if the service menu mode method unlocked my phone or not but Factory reset via phone's options works wonders! I was just about to head over to Verizon to help fix my issue.
Related
So just as the title says, a few days ago my data just stopped working. it will show H+, but it won't have the bars underneath or anything. I literally try everything, and sometimes it works and then just disappears again.
I got so frustrated today with it that I flashed down to 1.5.7 then OTA'd to 1.8.3 and guess what..it's still doing it!
Another frustrating thing about it is that I can't receive pictures or anything. I'm very close to going back to my iphone 4. Has this been happening to anyone else?
i have this problem too and like you i tried everything with fail.
maybe it's your apn settings?
i've reset them twice, and it still doesn't do anything. i'm ready to just exchange it out
this happened when i ****ed up my APN settings.
go to you APN list and then make sure that AT&T US is selected. Wait till it connects to the AT&T cell tower and then restart your phone.
Thats what worked for me.
This is happening to me too, I don't know what else to do I've done almost everything I can, I even restored to factory settings only to find out it would wipe all of my APN settings (I thought it would set them to default, but it just erased everything)
I've now set the APN settings but it still doesn't connect to my data plan. I'm really running out of options, I'm really frustrated.
i have att us hsdpa selected. i'll try just doing att us
What is your baseband? .07P? Or .15P?
badnokia said:
What is your baseband? .07P? Or .15P?
Click to expand...
Click to collapse
I've had this issue...baseband .15P
I'm on the fido network in Canada, it doesn't matter which APN I use
.15. i'm going back to att soon to just exchange it out and hope that fixes it
edit - yep gave me a new phone/sim, still can't access the market from data or receive/send pictures. I'm stumped
well I ended up switching back to my iphone 4, still have my atrix just isn't active.
turns out that I was missing a feature that would have given me full data access vs limited.
Rev1vaL said:
So just as the title says, a few days ago my data just stopped working. it will show H+, but it won't have the bars underneath or anything. I literally try everything, and sometimes it works and then just disappears again.
I got so frustrated today with it that I flashed down to 1.5.7 then OTA'd to 1.8.3 and guess what..it's still doing it!
Another frustrating thing about it is that I can't receive pictures or anything. I'm very close to going back to my iphone 4. Has this been happening to anyone else?
Click to expand...
Click to collapse
happens to me all the time, i use a widgetsoid button to renable it back everytime it goes out.
I was prompted to update my S2 to 4.1.2 yesterday, and I did.
All seemed to be working fine until today, out an about, when there was no 3G connection at all. My limit is well below my cap etc... I just cannot get a 3G connection at all. I checked that data is on, all the menu's seem correct (i.e. Mobile Data on, Network mode auto).
I have gone in to the Network operators menu and tried both Auto and EE, but neither give me a 3G connection.
My contract is with Orange, but have had the EE network on my phone for a while now (changed automatically a while back). I'm not sure if that could be an issue.
Also, shortly after the update, a menu popped up just as I was touching something else. I accidentally just clicked an option and it went away. I can't be sure, but I believe that I selected the other option from "Orange", it might have just been some combination of letters which I didn't recognise, but I think the option that I didn't click was "Orange". Is this the mistake? How do I get to that menu?
Thanks.
Gawge said:
I was prompted to update my S2 to 4.1.2 yesterday, and I did.
All seemed to be working fine until today, out an about, when there was no 3G connection at all. My limit is well below my cap etc... I just cannot get a 3G connection at all. I checked that data is on, all the menu's seem correct (i.e. Mobile Data on, Network mode auto).
I have gone in to the Network operators menu and tried both Auto and EE, but neither give me a 3G connection.
My contract is with Orange, but have had the EE network on my phone for a while now (changed automatically a while back). I'm not sure if that could be an issue.
Also, shortly after the update, a menu popped up just as I was touching something else. I accidentally just clicked an option and it went away. I can't be sure, but I believe that I selected the other option from "Orange", it might have just been some combination of letters which I didn't recognise, but I think the option that I didn't click was "Orange". Is this the mistake? How do I get to that menu?
Thanks.
Click to expand...
Click to collapse
Do you have signal?Can you make a call
.
GamingDj said:
Do you have signal?Can you make a call
.
Click to expand...
Click to collapse
Yes. I have sent numerous texts, and received a call.
Gawge said:
Yes. I have sent numerous texts, and received a call.
Click to expand...
Click to collapse
Maybe the update changed the modem.Try going back to ICS (not 4.0.4!) 4.0.3.If this works,then I recommend to go with ICS.If it still does't work,then try flashing different modems.
GamingDj said:
Maybe the update changed the modem.Try going back to ICS (not 4.0.4!) 4.0.3.If this works,then I recommend to go with ICS.If it still does't work,then try flashing different modems.
Click to expand...
Click to collapse
I haven't rooted my phone. It just updated normally via a prompt.
Problem Solved
I rang Orange customer support, and my issue was quickly solved. I'll share the solution, incase anybody else has the issue.
Basically, the issue was that menu which I accidentally clicked after the update. I clicked "LIFE" rather than "Orange UK". So, you just need to go to your mobile network menu, find "Access Point Names" and then hit the menu button and reset them, and choose Orange.
Interesting problem that I suddenly have after installing rom. First I have been installing just about every rom has come for the last 6 months. Today I installed latest Carbon ROM from here http://forum.xda-developers.com/showthread.php?t=2310695 today and it installed ok, but upon booting for the first time, it got stuck the setup right at the beginning where I press the language (English). It just sat there and didn't do anything. I tried reinstalled the rom, and it did the same thing.
So I assumed a had a bad download, so I went to restore my daily driver backup rom (Zone sense 4 rom from here http://forum.xda-developers.com/showthread.php?t=2116509). But now I have no mobile data or mobile connection at all. I get a triangle next to the bars and whenever I restart phone I get this message "Global data roman access is allowed. Significantly higher charges may apply". I have never seen that before.
I have tried removing sim, toggling all mobile network options (CDMA, global, roaming, etc.) and I still get no connection at all. Any ideas here? I am on Verizon.
smacklayer said:
Interesting problem that I suddenly have after installing rom. First I have been installing just about every rom has come for the last 6 months. Today I installed latest Carbon ROM from here http://forum.xda-developers.com/showthread.php?t=2310695 today and it installed ok, but upon booting for the first time, it got stuck the setup right at the beginning where I press the language (English). It just sat there and didn't do anything. I tried reinstalled the rom, and it did the same thing.
So I assumed a had a bad download, so I went to restore my daily driver backup rom (Zone sense 4 rom from here http://forum.xda-developers.com/showthread.php?t=2116509). But now I have no mobile data or mobile connection at all. I get a triangle next to the bars and whenever I restart phone I get this message "Global data roman access is allowed. Significantly higher charges may apply". I have never seen that before.
I have tried removing sim, toggling all mobile network options (CDMA, global, roaming, etc.) and I still get no connection at all. Any ideas here? I am on Verizon.
Click to expand...
Click to collapse
Need to RUU it and go again, its known to happen on aosp roms for some reason.
pio_masaki said:
Need to RUU it and go again, its known to happen on aosp roms for some reason.
Click to expand...
Click to collapse
Thanks. I did that and it worked. Any thoughts on how to avoid that in future aosp roms? Did I do something wrong or is it totally random?
smacklayer said:
Thanks. I did that and it worked. Any thoughts on how to avoid that in future aosp roms? Did I do something wrong or is it totally random?
Click to expand...
Click to collapse
Its apparently random. I've had it happen twice, once back non CM10 when it just got RIL going, and a build ago on Carbon.
I'm going through this right now. I rru'd and can connect to 3g and use the data but no texts and when I try to make a call I end up with a Verizon message saying my number is inactive. Everything works fine on my backup phone. So its not a problem with Verizon
Edit... I'm going to ruu again and factory reset before booting because I think I remember seeing that posted at some point
Sent from my RM-845_nam_vzw_100 using Tapatalk
I'm going through this right now. I rru'd and can connect to 3g and use the data but no texts and when I try to make a call I end up with a Verizon message saying my number is inactive. Everything works fine on my backup phone. So its not a problem with Verizon
Edit... I'm going to ruu again and factory reset before booting because I think I remember seeing that posted at some point
EDIT 2.... re rru'd still having problems it will not make calls and will get 3g data when set to roaming which it seems to be on with the triangle above the signal.
anyone know the Verizon apn's i only have verizon internet in my apn list.
Edit 3 All fixed. i was factory resetting in stock recovery to no avail but a factory reset in sense itself worked
I have an LG V30 with Sprint. Last week I noticed my phone wouldn't connect to LTE/4G network even in places where I know there is good service and other Sprint phones around me are fine. So right now it only connects to 3G and even then is mostly keeps going into roaming and won't go back to 3G until I toggle mobile connection on/off. I've tried just about everything I can do. Turned the phone on/off. Checked for updates. Toggled mobile network connection settings. Network settings reset. I even factory reset it and the problem persists. What very little I could find mention of this problem online mentions messing with the APN settings, but I'm not able to do that. For what it's worth the phone still connects to wifi just fine.
Any advice or help would be appreciated because I'm really lost here and it's becoming a real problem for my phone to barely connect to anything unless I'm on wifi.
Clever Name said:
I have an LG V30 with Sprint. Last week I noticed my phone wouldn't connect to LTE/4G network even in places where I know there is good service and other Sprint phones around me are fine. So right now it only connects to 3G and even then is mostly keeps going into roaming and won't go back to 3G until I toggle mobile connection on/off. I've tried just about everything I can do. Turned the phone on/off. Checked for updates. Toggled mobile network connection settings. Network settings reset. I even factory reset it and the problem persists. What very little I could find mention of this problem online mentions messing with the APN settings, but I'm not able to do that. For what it's worth the phone still connects to wifi just fine.
Any advice or help would be appreciated because I'm really lost here and it's becoming a real problem for my phone to barely connect to anything unless I'm on wifi.
Click to expand...
Click to collapse
If you're on stock, reset your SCRTN
Open dialer and type in the following code
##72786#
It will ask you if you're sure you want to reset, click on yes
The phone will restart and it will go through the activating process and you SHOULD have LTE now.
Sent from my LG-US998 using Tapatalk
djpabz23 said:
If you're on stock, reset your SCRTN
Open dialer and type in the following code
##72786#
It will ask you if you're sure you want to reset, click on yes
The phone will restart and it will go through the activating process and you SHOULD have LTE now.
Sent from my LG-US998 using Tapatalk
Click to expand...
Click to collapse
It worked! Thank you so much
Clever Name said:
It worked! Thank you so much
Click to expand...
Click to collapse
I'm glad it's working now.
Sent from my LG-US998 using Tapatalk
djpabz23 said:
If you're on stock, reset your SCRTN
Open dialer and type in the following code
##72786#
It will ask you if you're sure you want to reset, click on yes
The phone will restart and it will go through the activating process and you SHOULD have LTE now.
Sent from my LG-US998 using Tapatalk
Click to expand...
Click to collapse
Does this process wipe your phone to factory settings?
Darias83 said:
Does this process wipe your phone to factory settings?
Click to expand...
Click to collapse
Nope, it just resets your network settings only. Your pictures, apps, music, and other things are left untouched.
Sent from my LG-US998 using Tapatalk
djpabz23 said:
Nope, it just resets your network settings only. Your pictures, apps, music, and other things are left untouched.
Sent from my LG-US998 using Tapatalk
Click to expand...
Click to collapse
Thanks works fine now saved me a headache I was about to reset my phone completely.
Anytime
Darias83 said:
Thanks works fine now saved me a headache I was about to reset my phone completely.
Click to expand...
Click to collapse
Sent from my LG-US998 using Tapatalk
SCRTN is a wonderful thing, solved problems for me many times when I was on various Sprint MVNOs.
But it only works with CDMA networks and phones (Sprint & Verizon).
For stubborn network problems on other non-CDMA models and networks I found the engineering/service menu factory reset to be a life saver. In particular did it solve a lack of LTE connection after a "partial" T-Mobile SIM unlock. To be clear, it loses the SIM unlock, which allowed me to unlock anew (and fully this time). Just be aware of that.
1) Backup everything, as the phone will be wiped. If yours is a network unlocked carrier model, make sure you have an unlock code (or unlock approval if T-Mobile).
2) Remove your Google account to disable Android Device Reset Protection.
3) Dial *#546368#*932# (replace 932 with your model number). This should open the service menu. From there SVC Menu - Factory Reset (R&D Only).
This takes quite a bit longer than normal Factory Reset. Your phone is now TRULY back to factory state.
While I haven't experienced any problems after doing this, I cannot guarantee that it is risk free or that there are no side effects that I just haven't detected.
So I would ONLY do this as a last resort.
I tried to changed APN manually to rogers but still data does not work, only call and text works. Is there a solution to this? I believe i got Pro 2 (cn with global rom installed)
I had the same issue, below is the APN setting on Rogers website, I've found that if you make the following changes, it will connect to 4G data (until you restart your device)APN Type: replace "internet + mms" with "*"
MVNO: ROGERS
MVNO type: SPN
This will get you connected.
However, I ran into another problem after configuring the network this way. After restarting the device, the phone can no longer detect the SIM card, and has an error message prompting restart).
This is my problem after restarting:
Comparing with other phones, the auto detected APN Type is typically "default", but entering default will cause the connection issue right away. The "*" will allow you to run until device reboot.
I too would like help on how to resolve this. Seems more software than hardware problem since it only fails after boot.
Mobile APN Settings
Parameter NameParameter ValueAPNltemobile.apnMMSC
http://mms.gprs.rogers.com
MMS Proxymmsproxy.rogers.comMMS Port80APN Typeinternet + mmsAPN ProtocolIPv4/IPv6APN Roaming ProtocolIPv4/IPv6All other settingsBlank/default value
@GSKC
I just tried your method looks like it works and as you said it doesn't work after reboot. However when I did "Network setting reset," I was able to connect to 4g again (but resets wifi passwords too). Hopefully there's a solution...
I noticed that this problem only happens if there is a SAVED wifi network WHEN the device BOOT up.
I did a factory reset, then enter the APN manually. I was able to connect to stable network.
I did a system restart, no issue. The phone reconnects to the network automatically after booting.
I connect to a wifi network. The phone still works fine.
I restart the device again, the problem comes back.
If I take out the SIM and only use the Wifi, the phone is also okay.
The only time when it doesn't work is when I have both, which is the normal use case.
Something is happening in the firmware between the wifi and the SIM during the boot sequence.
This problem exists on my Lenovo L70081, Legion Phone Duel 2 Pro, running OS 12.5.188 ST, updated using Rescue and Smart Assistant v5.8.0.25
Any help would be appreciated.
GKSC said:
I noticed that this problem only happens if there is a SAVED wifi network WHEN the device BOOT up.
I did a factory reset, then enter the APN manually. I was able to connect to stable network.
I did a system restart, no issue. The phone reconnects to the network automatically after booting.
I connect to a wifi network. The phone still works fine.
I restart the device again, the problem comes back.
If I take out the SIM and only use the Wifi, the phone is also okay.
The only time when it doesn't work is when I have both, which is the normal use case.
Something is happening in the firmware between the wifi and the SIM during the boot sequence.
This problem exists on my Lenovo L70081, Legion Phone Duel 2 Pro, running OS 12.5.188 ST, updated using Rescue and Smart Assistant v5.8.0.25
Any help would be appreciated.
Click to expand...
Click to collapse
Im on the same OS version 12.5.188ST, my phone connected to data absolutely fine with no problems but after every few hours stop making or receiving calls. I did the following and its fine for some time now but I'm not sure whether this will work with every phone but no harm in trying :
settings.....cellular network and sim.....5G mode. By default (at least in my phone) it is on NSA, I first switched to NSA+SA but to no avail, than I switched to SA and vola problem solved, all incoming outgoing calls working bang on but I think now my phone doesn't go on 5g which is still not good but at least making calls as normal. Now, as I said, this procedure might not work for everyone but try it, cheers.
vtec303 said:
Im on the same OS version 12.5.188ST, my phone connected to data absolutely fine with no problems but after every few hours stop making or receiving calls. I did the following and its fine for some time now but I'm not sure whether this will work with every phone but no harm in trying :
settings.....cellular network and sim.....5G mode. By default (at least in my phone) it is on NSA, I first switched to NSA+SA but to no avail, than I switched to SA and vola problem solved, all incoming outgoing calls working bang on but I think now my phone doesn't go on 5g which is still not good but at least making calls as normal. Now, as I said, this procedure might not work for everyone but try it, cheers.
Click to expand...
Click to collapse
Thanks for the suggestion, unfortunately setting the 5G setting didn’t help. I also tried disabling 5G but I still have the issue.
Was your OS able to read the APN from your SIM or did you have to enter the APN manually also?
GKSC said:
Thanks for the suggestion, unfortunately setting the 5G setting didn’t help. I also tried disabling 5G but I still have the issue.
Was your OS able to read the APN from your SIM or did you have to enter the APN manually also?
Click to expand...
Click to collapse
I didn't mess about with apn, as I said in my earlier post I had no problems using data its always connected but I had problems with making and receiving calls, cheers
There's currently two ROM available on Rescue and Smart Assistant:
L70081_ROW_SECURE_USER_Q00017.0_R_ROW_12.5.188_ST_210819_qpst
L70081_EE_SECURE_USER_Q00017.0_R_ROW_12.5.137_ST_210710_sec_qpst
What's the difference between ROW and EE rom?
Which would work best in Canada and US?
is ROW only updated in Asia and Pacific?
i sort of had this same problem with Tmobile. it would only connect to 3g . if i connected to the 4g or 5g network i lost everything . i was able to fix it using my ROOTED phone and an app in the playstore called network guru. I used that to turn off majority of the network bands and only left the ones listed for the phone. My service was immediately fixed and havent had any trouble since
tinman4209333 said:
i sort of had this same problem with Tmobile. it would only connect to 3g . if i connected to the 4g or 5g network i lost everything . i was able to fix it using my ROOTED phone and an app in the playstore called network guru. I used that to turn off majority of the network bands and only left the ones listed for the phone. My service was immediately fixed and havent had any trouble since
Click to expand...
Click to collapse
Can you go into more detail and steps? I actually switched from tmobile to att after I couldn't get it work. I would rather be on tmobile.
superrama said:
Can you go into more detail and steps? I actually switched from tmobile to att after I couldn't get it work. I would rather be on tmobile.
Click to expand...
Click to collapse
I know how ya feel, I pestered TMobile for 2 weeks and they were no help. They kept trying to push me off to Lenovo who was absolutely no help at all. Id go thru their website which connects you to Motorola. Then they would tell me they don't support the phone because it's Lenovo and give me a link to follow. Id follow that link which led me right back to Motorola lmfao.
After 4-5 times of going thru that nonsense I finally got someone who knew what they were doing. They told me because this phone was never released in the US I need to go thru their European server for assistance. Screw that, I did some more research and got the idea of trying this from some ancient post I found on xda lol.
It's actually very easy as long as your phone is rooted. download the app, click the 3 dots and go into force control. Then adjust the carrier bands so only the ones supported by the phone are selected. Then reboot your phone and it should kick over to a working signal . If not ya might have to monkey around in the service menu using the dial code *#*#4636#*#*
Here's a few screenshots to give ya an idea and a link to a website with all the bands listed. https://www.kimovil.com/en/frequency-checker/US/lenovo-legion-2-pro
tinman4209333 said:
I know how ya feel, I pestered TMobile for 2 weeks and they were no help. They kept trying to push me off to Lenovo who was absolutely no help at all. Id go thru their website which connects you to Motorola. Then they would tell me they don't support the phone because it's Lenovo and give me a link to follow. Id follow that link which led me right back to Motorola lmfao.
After 4-5 times of going thru that nonsense I finally got someone who knew what they were doing. They told me because this phone was never released in the US I need to go thru their European server for assistance. Screw that, I did some more research and got the idea of trying this from some ancient post I found on xda lol.
It's actually very easy as long as your phone is rooted. download the app, click the 3 dots and go into force control. Then adjust the carrier bands so only the ones supported by the phone are selected. Then reboot your phone and it should kick over to a working signal . If not ya might have to monkey around in the service menu using the dial code *#*#4636#*#*
Here's a few screenshots to give ya an idea and a link to a website with all the bands listed. https://www.kimovil.com/en/frequency-checker/US/lenovo-legion-2-pro
Click to expand...
Click to collapse
How do you root the phone?
GKSC said:
How do you root the phone?
Click to expand...
Click to collapse
Tutorial: How to Update, Unlock bootloader and Root your CN with Global Rom phone
I received my phone today from Aliexpress and was able to update, unlock bootloader and root my phone so I want to share the steps. Follow them at your own risk, I take no responsibility for any issues or bricking. You should always backup your...
forum.xda-developers.com