Hey,
I bought an unlocked Sprint phone on ebay to use with Koodo (Canada). Everything is working pretty well except for one thing. Whenever I loose the signal because I go in the subway or anything and then I get back to where the signal is available I still get no service on my phone. Then I activate / deactivate airplane mode and then it's fixed, but I have to do this every single time I loose signal.
What can cause this?
Would it help / work to flash the stock koodo rom on it if I ever find it?
Related
So I got this phone from my friend asking to help him because quite recently his phone would start dropping calls and losing signal. He was running completely stock on Android 2.2 He asked if I could take a look and try to get it working. So after doing some researching in the sub I found the rooting app and decided to put CM7.1 on his phone. Everything works great now considering he couldn't get a call to go through but it only has edge and that's only after waiting a couple minutes after boot. There isn't an option in CM7 to choose WCDMA but it does have the check box for 2g only. Anyway calls go through fine now as well as texts but god Edge is so slow. WiFi works fine as well. Anyway What on earth do I do to get 3g working?
I have also done the Defy Baseband switcher, everything but T-Mobile 3.4.2 -107-9 works. The only thing I can think of doing next is having him switch out his sim card through T-mobile. If someone else has an idea I would love to hear it cause I am just spinning my wheels.
Also I did install CM7.2 and it had the option for WCDMA which forced the 3g icon but it never would do anything about data for it. It would just sit at a webpage and timeout. Anyway back at CM7.1 and waiting to see what happens.
Thanks ahead of time for the help guys.
Anyone with any other ideas or something simple I am missing?
I have a very similar problem. I have installed WhiteRabbitEddtion 1.5 for Defy+ MB526 (based on CM7.2 I think). When it tries for operate on 3G, it works for a while, then just loses the network. It looks like the receiver goes deaf or something. If I select 2G only, it seems to work fine. But then restricted to EDGE data rates -- bummer.
My network operator is Telstra (Australia) - 850/2100 MHz.
Hi, I have D801,
I recently started to have this wierd problem, where I would lose all my signals completely, and comes back on, just without an LTE (regular 4G).
after this, if i go in to network settings, it is defaulted to WCDMA only or WCDMA preferred, instead of the ones with LTE in it.
no matter how many times I change this, it keeps going back.
I literally live right next to the tower.
I did not have this problem a day ago, I don't know what is causing this problem
i have flashed
http://forum.xda-developers.com/showthread.php?p=49449195
this on my D801, and this is the only thing I did before having any issues.
or maybe it's something else.
APN setting looks normal etc.
can anyone tell me what to do ?
I tried going back to completely stock, and the problem is still there.
I used this method.
http://forum.xda-developers.com/showthread.php?t=2477595
is there anything in this procedure that doesn't get restored to stock?
HELP!
I was at a location where the network reception was bad and I lost signal. My phone has not been having network signal since then. Signal strength 0.
I recently got a voice and text only sim card from Tbaytel (Rogers) to use on my spare phone while working up in Northwest Ontario (DMTS/Knet towers). I sim unlocked it (was a Bell phone) and I am having tons of problems. The phone is rooted and currently running JDCTeam Optimized CM12.1. Firstly, I can not get a signal consistently. If I go into the network settings and move between LTE/3G/2G etc. I will get a signal right away and it will send a text and call out (call outs have problems too I'll address that at the bottom) until I turn the screen off or the phone sleeps by itself. When I turn it on, it just says No Service/RogersTbaytel until I play with the network settings again. And, when it does get a signal after switching the settings around, it's full bars so it's not a tower or area issue.
As for the calling out, it will dial out when I have a signal and my other phone will receive it. However, the S4 phone kind of lags on the dial out and when I pick up the line with my other phone there is no voice transmission from either phone but the call seems to be connected. I also can not seem to end the call with the S4 but I have to end the call with my other phone.
I have tried a few different ROMs, the Google Play Edition 4.2.2 (IIRC) one, CM10.1, CM11 and they all have this same problem.
Any assistance would be greatly appreciated. I have decent knowledge with rooting and such but don't get super technical with me. I should be able to do just about anything with a bit of guidance though.
Thanks.
Dears,
whenever I am on a call and then hang up or finish the call, I cannot surface the internet or even make a call after hanging up for a while. I can see that there are packets going to 4g but no reply "upward arrow but no downward arrow that is near 4G icon". It is sending data to 4g but not receiving any response and
also, after finishing the previous call I can not make a new call unless I switch on airplane mode and then switch off or restart my S8 to work normal again.
To revise and better understanding this issue:
1. the S8 works normal and can communicate to Internet and receives calls
2. the problems starts after ending a call, the S8 cannot communicate with the network for a while Internet and calls
3. temporary solution is to go to offline mode then online or restart the phone
4. then it will work fine "Boring Solution"
I am facing this weird problem since day1 with my samsung S8.
any advice?
No body has faced similar issue ?
I have no issues, on At&t.
I have no issues too. I roam a lot with data on. Different carriers within Asia. All ok.
Maybe try reset the carrier "access point names"?
Are you under power saving mode?
i got my S8 it worked fine in start (or i might have not noticed it) but then i observed it used to turn off sim cards (did not catch any signals) as i go out of 34 or 4g covered area. it did not work on 2g. i got i fixed from samsung care. and now i am having weak signal issue. Voila -_-. Going to get it fixed "AGAIN".
I have too signal problum internet and sim service. Very poor.. but when was i buy then it was perfect . After use 4 month its conditions make me very thankless. If any person who know about that issue plz help m
Hi everyone. I decided to root my H918 from 10t by using lafsploit. At this time, my calls, LTE, and SMS were all working perfectly. After downgrading to 10p and unlocking bootloader, the device had difficulty staying connected to a single tower. it kept dropping signal often and was not able to make outgoing calls or stay connected to LTE for too long. After this I flashed LineageOS 15.1, not thinking much about it. On LineageOS, every time an outgoing call was made, it would drop the signal for about a minute. If no calls are made, LTE and SMS sort of work. I flashed 10u stock after that with Magisk and the phone has difficulty connecting to LTE or making calls/sending SMS. I have tried the following:
- Reboot
- Clean flash
- Format where you type "yes"
- APN settings
- Network mode change
- Airplane mode on/off
Somehow after a reboot (on Stock 10u zip) I'm able to make 1 or 2 calls and then it stops working. I called the carrier and they said there are no outages in my area.
I put my SIM in another TMO phone and it worked perfectly. I put their TMO sim in my phone and it had difficulties making calls. So the possibility of it being a sim issue is ruled out most probably. I have been recommended by a few people to try and flash an h918 modem but 1. Not sure if it is safe and 2. Not sure where to source it from. I have no other ideas and this is my primary phone so I'm having difficulties without a usable phone. Any suggestions would be hugely appreciated. Thank you.
Update: Tried flashing to 10p kdz from download mode but didnt solve anything.
Is the wifi also on?
I'm having the same problem, but was running on 10j. I went back to stock and upgraded to 10u to see if it fixes the signal problems I have with this phone. Both Cell signal and GPS on this lg v20 are horrible. On using the h918 on at&t. If not, i will either need to go back to my moto x pure or maybe buy the international note 9 with the unlocked bootloader.
androiddiego said:
Is the wifi also on?
Click to expand...
Click to collapse
The Wifi is on, but I also tried with the wifi off as well as turning off wifi calling, Volte, etc.
Alibaba0101 said:
I'm having the same problem, but was running on 10j. I went back to stock and upgraded to 10u to see if it fixes the signal problems I have with this phone. Both Cell signal and GPS on this lg v20 are horrible. On using the h918 on at&t. If not, i will either need to go back to my moto x pure or maybe buy the international note 9 with the unlocked bootloader.
Click to expand...
Click to collapse
I tried the same. Just flashed a 10p kdz to see if that would fix it, but no luck. Same issue happening on complete stock OS..
I replaced my sim yesterday, but that didn't make any difference. Before that i replaced the plastic bits on the top and bottom of the phone where the antennae contacts with.
I went back to 10j yesterday which was still arb0 and now upgraded to 10u which is arb1. I'll miss lineage, but i was just having too many problems with it. Not sure what at&t has on band 30, that's the only band this phone is missing. I regularly was losing signal while just driving on the freeway.
Hello. I have the same issue on LineageOS. Been trying to fix it but no hope. But I did find a temporary solution. Let me describe the problem. I'm having a LTE sim that works just fine, then it just stop working. The problem is when you enter an arena without LTE or the LTE is too weak at that point then your cell signal is laggy and lost completely. But you can switch the Preffered Network Type in the Settings to WCDMA/GSM/CDMA and your cell signal is back. That's my solution for now. Hope It helps.
With a custom rom, you can't have wifi on with data on. Simply turning wifi off doesn't fix the problem. You would need to reboot. This has been a problem from the beginning. It works with a totally stock phone, but beyond that, no.
Here is the only way to keep data calls working properly: If you need wifi, turn on airplane mode, then turn on wifi. When you are done, turn off wifi, then turn off airplane mode to bring data back.
Not sure the signal is any better with the new firmware on 10u, but at least my location services is behaving better and the camera actually works in stock. I did a side by side comparison of the gps signal with my moto x pure. Side by side the moto x pure got to an accuracy of 10ft with 21 satellites in view. The lg v20 locked on much slower to 8 satellites with an accuracy of 50 ft.
For comparison -
satellite 14 signal strength
moto x pure 34
lg v20 23
the cell signal may be better with fewer drops, but in some places without lte the speed and throughput is miserable.