Hi i have a nexus 5 android 6.0.1 and whenever I make or receive a call the network drops from LTE to 3G to Edge. It stays on Edge even after the call has been ended and the only way to goes back to LTE is when the phone is locked for a few minutes. I checked the settings number cellular networks -> preferred network type and its on LTE. I have done a complete wipe on the phone twice and still the same issue.
Also in the past I have another issue which was resolved and I have had this phone for about 2.5 years and after the first 6months the sim was unreadable. The person I got it fixed from stated that the guy I bought the phone off reported it stolen and the only to use it was to switch the motherboard. Im not sure if they are related .
The main issue the network dropping down to Edge is causing is when I drive for uber and passengers call me sometimes I cannot start the trip or load the gps for a few minutes .
This is because of CSFB functionality. LTE is used only for data connection and if you receive or place a CS voice call, then the phone switch to 3G or 2G (depends from signal strenght) to make a call and after that if signal is strong enough switch back to LTE.
After upgrading to the new Android 6.01, I have noticed that after charging the phone during the night the signal is lost. I got no indication whatsoever as the signal strength bar is OK. People calling me are diverted to the voicemail and no sms are coming. This is solved when I make a call or restart the phone. This is very frustrating as I lost many important calls. People keep telling my phone is switch off. This is not a sim card or the carrier’s problem as I checked with other carrier’s sim card and even had sim replaced.
I've had a strange long-term issue where the phone will ring for the party calling in, but won't ring on my end. No missed call shows up. It occurs about half the time with or without WiFi calling on. This issue has plagued me since my Verizon Note 4 with Verizon service, my T-Mobile Note 4 with T-Mobile, and is still occurring on my T-Mobile Note 5.
The only way I know I've missed calls is that I use YouMail's email notification service which lets me know that someone got to my YouMail voicemail even if they don't leave a message.
I thought it had to do with my poor (1-2 bar) service in my rural area but I've had WiFi calling on my past two devices, WiFi always on, and it still happens frequently. For example, I got three calls from my girlfriend while I was home today. Full WiFi signal strength the whole time. Her first call came through fine but the following two I never received any missed call for. The only reason I know she called was because of the email notification I received from my YouMail voicemail service. I have a new SIM card through T-Mobile so I know it's not that as it previously happened with my Verizon SIM and Note 4 while on their network.
Very frustrating. Any idea what is going on?
I can say that T-mobile wifi calling is not stable. It got so bad I had to turn it off and just deal with poor signal.
A few days ago this occurred. At that stage I had CM13.1 running. I had not undertaken any new updates.
On Monday I was able to receive and make calls with both SIMs.
On Wednesday I noticed that the second sim wasn't showing up with a signal on the home screen.
Researched and checked the hardware which all came back as OK. I switched the sims into another phone and they work fine on them.
I am now on LOS 14.1 and still face the same issue.
I have noticed that if I toggle off or on the mobile data between phone providers this will allow phone signal to be established, but I lose the signal in the other sim
has anyone experienced anything similar in the past?
If so, would anyone be able to assist in resolving this issue?
Attached are some screenshots of what it looks like for me.
With thanks.
Put your SIM 01 to SIM 2 tray & Sim 2 to SIM 1 tray
then try
Hi
I have been searching alot about this topic, and all that i gathered is that the oneplus 6 is dual standby phone. This means that when on a call on SIM 1, then you are unreachable on SIM 2. I'm not talking about volte, but on GSM.
Also this means when I'm on a call on any SIM, the data shuts off unless I'm in area with duplex gsm channel then data drops back to H. (As per my friend who works in the teleco company here, cuz sometimes and in some areas when I'm on a call, the data doesn't drop back to H but rather completely shuts and in some areas and some times it drops back to H)
As per my reading, this happens because the oneplus 6 utilises the x16 chip which has a single antenna.
Here is where my confusion, i tried an out going call from SIM 1, put the call on hold, dial another number on SIM 2, conference the calls, Viola, it works. This means that i can use both SIMs actively.
Please someone shed some more light on this.
Note, I'm using 2 separate SIMs but from the same operator.
Also, im on the Android p beta 1 rom but have been able to do this on the previous OTAs also.
Cheers
Op6 is dual standby not dual active that means when you call from sim 1 sim 2 is inactive and vice versa.
I don't know which phone support dual active.
vikasb32 said:
Op6 is dual standby not dual active that means when you call from sim 1 sim 2 is inactive and vice versa.
I don't know which phone support dual active.
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Hi
Try calling from SIM 1, hold the call, dial another number from SIM 2, conference the calls, you will see that the conference works, here is where i get confused because everyone says it's dual standby, so conferencing the calls shouldn't work
hubono said:
Hi
Try calling from SIM 1, hold the call, dial another number from SIM 2, conference the calls, you will see that the conference works, here is where i get confused because everyone says it's dual standby, so conferencing the calls shouldn't work
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I think i figured out what's going on, when placing the second call, although I'm telling the phone to dial from SIM 2 it dials from SIM 1. so both calls are originating from SIM 1.
Cheers
hubono said:
I think i figured out what's going on, when placing the second call, although I'm telling the phone to dial from SIM 2 it dials from SIM 1. so both calls are originating from SIM 1.
Cheers
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Click to collapse
Def possible.
If I'm on a call on the first SIM, I can't even send a text message out on the 2nd.