Hello guys!
I'm asking on behalf of my friend regarding his HTC ONE M7.
The phone is running fine on WIFI but, there's an issue with the network service. It takes a while for the phone to pick up the network operator and when it is connected to the network, it shows full bar with 3g signal. The issue is that, my friend cannot make a call or browse the internet using data network. Even when he tried to check his credit balance, it would sometimes show the balance and sometimes it will display and error with "Invalid MMI code" or something. Same thing goes to making a call, sometimes he can call, sometimes he can't.
I tried to make a call from my phone to his phone and sometimes it's ringing and again, sometimes his phone can't be connected.
He flashed new ROM but the issue is still there.
Any of you guys have any idea on how to fix it?
Thanks!
change SIM
I recently changed to H2O, which is an AT&T reseller for those who are unfamiliar, and I'm having a very peculiar problem.
When I go to make a call, as soon as I tap the green button to make the call, sometimes my signal drops to 0 bars and I can't make the call. Sometimes this happens repeatedly and it's impossible to call anyone. But sometimes the call will go through after the 2nd, 3rd, or 4th try. However, sometimes it drops to emergency calls only after the call fails, or sometimes it drops to no service.
Additionally, when I go to change the conditional call forwarding under dialer - settings - calls - call forwarding, as soon as I tap call forwarding, the signal bars vanish and I get a call settings error. This happens almost all of the time. And again, sometimes it will drop to emergency calls only, or a several times I've had it drop to no service.
When I give up trying to make a call or change call forwarding settings, the signal strength will return after a minute or so, which is currently fluxuating around -112 dBm 28 asu, -116 dBm 24 asu, 110 dBm 30 asu. Not sure what any of that means though.
Frequently, incoming calls do not reach my phone. Often I'll get a text message asking me why I'm not answering my phone, but it never rang. There's no indication that my phone was out of service as there is always at least one bar.
I can send text messages with no problem at all. My data also works just fine. In fact, one of my friends gave up calling my phone number and instead calls me on WhatsApp because that's the only way he can get a hold of me. He would call my number, have it fail, and then immediately call me on WhatsApp and that goes through because my data doesn't usually have any issues.
I've tried changing APN settings according to different information I got from H2O. I've tried changing the preferred network type to 3G and 2G. Changing to 2G seems to help my ability to make calls, or maybe it just seemed that way. I've contacted H2O numerous times about it. They opened multiple tickets on it and finally said that there's no problem on their end getting service on that sim card. I sorta verified this because the sim card doesn't display this problem in my 1st gen Moto X, an XT1053.
Two other people in my house are on the AT&T network, one on Cricket with a Galaxy S6 (G920AZ), and one on H2O with a Galaxy S3 (T999) and they never have any issues here at home or elsewhere.
My phone is an XT1095 pure edition. I run stock 6.0, 24.11.18.victara_tmo.tmo.en.US, kernel 3.4.42-g389e46b, rooted, TWRP, with no apps that modify call behavior except Google Voice which is set to never use GV to make calls. This phone worked flawlessly on several different T-Mobile resellers. I'm about to switch back to another T-Mobile reseller but I thought I'd post here about this strange issue first because I don't want to always be limited to the T-Mobile network.
Any advice or input is greatly appreciated.
Hi guys
So i noticed that when i am on TIM italy... And i am in roaming from o2uk, well after i either do a phone call or i receive one the phone goes to emergency calls only for like a minute or so which is a bit odd.
Called o2 they just said fo change network im roaming on.. My wifes samsung s5 is on Same network and does not fall when doing a call.
What could. It be?? Just odd. If i choose another network works fine but i like TIM..
Thanks
Hello,
I need help diagnosing whats going on with my HTC desire 626s. The phone is unlocked, rooted, and has TWRP installed.
Problem: I can't make calls while I'm at my home. I have excellent signal strength being I'm within visual range of the cell tower.
The phone has always worked at my home in the past then about a two months ago I wasn't able to make or receive calls. The internet works fine, and texting works fine. When I try to make a call nothing happens then there is a beep and the phone says call ended. This is an unlocked phone on att go phone service. After this issue started I called att and created several trouble tickets and every time they state the service is working fine. When the phone was working normally during calls the 4gLTE indicator would swap to 4G and make calls on an hspa network. After att was unable to fix the issue I bought a new sim card. For a month I was able to make calls just fine but then on Halloween night the problem came back. I highly suspect that someone is blocking my ability to make and receive calls. I need help from someone that knows more than me on how to diagnose exactly why the calls are not goign thru. I really need help. I have swapped the sim card into a new phone was able to make a call or two then the service was again unable to make or receive calls. I just need help on how to diagnose exactly whats stopping the calls from going thru. Thank you.
PS. Another att go phone works in the same location that mine does not so it is not a issue of the walls blocking the signal.
Hello,
Often hapens to my phone people calling me and they say my phonne it's off! But i have allways my phonne on and with good GSM signal.
It's possible that some setting on battery managent are messing wiht phone app?
Check the permissions for your call app. You may need to reset them.