The phone indicates that this outside the coverage area for the reception of cellular calls. This operating on GSM technology. The other services work properly (Bluethoo, WiFi). When start equipment not flashing the green Led. Perform a Hardreset and does not change the fault.Probe others GSM cards on the HTC equipment and has the same problem.
Hi everybody, I've been using CM10.1 build of July 3rd since it came out, with overall good satisfaction.
One major issue bothers me and I would like to get rid of it: when I enter a bad 3G reception area, my Defy+ disconnects from the 3g network, and it stays disconnected even if I move back to a good reception site, because it prompts for the SIM PIN and obviously I'm not watching the screen every second.
I dont think this is normal. It should retain the PIN entered at power-on, and restore 3G connectivity as network becomes available again.
I'm on italian TRE network operator, which has commercial agreements with competitors in order to fall back to nationwide roaming in areas where it is not present. Also, it only operates 3G frequencies, while when in roaming the phone should lock into 3G and 2G as well. Maybe this piece of information can help you in helping me.
I'm on mixed GSM/WCDA mixed mode (WCDMA preferred).
I tried to search in other thread but couldn't narrow down an exact asnwer, most of the topics I read dealt with RIL BUG (?).
Thanks
manualle said:
Hi everybody, I've been using CM10.1 build of July 3rd since it came out, with overall good satisfaction.
One major issue bothers me and I would like to get rid of it: when I enter a bad 3G reception area, my Defy+ disconnects from the 3g network, and it stays disconnected even if I move back to a good reception site, because it prompts for the SIM PIN and obviously I'm not watching the screen every second.
I dont think this is normal. It should retain the PIN entered at power-on, and restore 3G connectivity as network becomes available again.
I'm on italian TRE network operator, which has commercial agreements with competitors in order to fall back to nationwide roaming in areas where it is not present. Also, it only operates 3G frequencies, while when in roaming the phone should lock into 3G and 2G as well. Maybe this piece of information can help you in helping me.
I'm on mixed GSM/WCDA mixed mode (WCDMA preferred).
I tried to search in other thread but couldn't narrow down an exact asnwer, most of the topics I read dealt with RIL BUG (?).
Thanks
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Click to collapse
same problem for me
atma_weapon said:
same problem for me
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Click to collapse
What build are you on?
I've had the phone for about a month now, and I've never seen the signal strength indicator display anything other than max. I definitely know that my signal strength is pretty poor at my workplace via my old Nexus 4 and the LTE Discovery app. Does anyone's phone display an accurate signal strength? I'm currently stock on Marshmallow (same issue with Lollipop) with T-Mobile as my carrier, if that matters.
That sounds like "Demo mode" in System UI Tuner. It makes everything look like it's working perfectly.
It's also possible that you have a very clean signal to a malfunctioning tower. I've seen this in a few places.
kevinmcmurtrie said:
That sounds like "Demo mode" in System UI Tuner. It makes everything look like it's working perfectly.
It's also possible that you have a very clean signal to a malfunctioning tower. I've seen this in a few places.
Click to expand...
Click to collapse
Demo mode is disabled. I've installed a couple of apps that display information about my cellular signal, and they accurately displayed the corresponding indicator based on the signal strength. I'm not sure why my Moto X won't accurately show it. Maybe I just need to find a place that has no service just to make sure. LOL
Hi everyone,
I already looked for an answer in the forum but nothing conclusive.
My moto g4 play loses signal during calls. The sim card is 3G and so I changed the network manually to 3g on the phone. However the problem continues and I think it even got worse. It happens especially when I'm moving, in the car, etc.
Is there any real solution for this problem? I have seen many users complaining but I did not realize if there was a solution or not.
Can you help me?
Thank you
Since the SIM is 3G, I'm going to assume the network you're using is GSM (ATT/Tmo). It is possible that the cell towers in your area operate on a specific type of GSM frequency, and your signal loss is due to the phone trying to connect to towers not supported by your carrier. If a call drops again, check the Roaming status of your phone in Settings and see what turns up.
Also, it seems odd that you would have to change the network settings at all. Even if the phone is set to prioritize LTE, it should automatically detect the 3G signal and adjust accordingly.
I have been using jio 4g for past 2yrs. The internet connection was good. But for the past 6 months I am facing frequent disconnection of the internet. So I go into flight mode activate and deactivate it again the net connection will be good for a minute and then it drops again to b/S. Frustrated I changed the SIM. But same problem. The bio customer care says it to update firmware! Which was not available and at last they told me to get the mobile serviced. So I swapped the SIM to another mobile and checked. There was no problem in that mobile. Please help me. Whether it is due to SIM or the band problem with mobile. I am using a stock firmware
Ps. Even I resetted, rooted
Set the network type or RAT or network mode to LTE (4G) only, then the phone should stay on the signal even when the signal is low for a second, around -120 rsrp (signal), specifically it should normally follow the parameters sent by the network: qRxLevMin (it is half the rsrp), qQualMin (sometimes, it is the signal quality), sNonIntraSearch, ThreshServingLow (both are ranges around qrxlevmin, one for entry threshservinghigh, one for exit). These parameters should nornally not be followed with LTE (4G) only. But only if the signal drops below the limit for a second. Else, it is a waste of resources, both for you (battery, etc), and the network, though the network can deprioritize cell edge (low signal) users.
To do so, there are extended network modes (for sim 1) in a menu that comes with Android, it is called 4636, Testing, Phone info, Device info, etc. There are apps that open 4636 without root, that offer: mode selections, lte only, anything cellular related that opens 4636.
Hold the phone on its top, not its bottom, for testing, the primary reception antenna should be at the bottom for A 2016, you can check this in *#0011#, it is "ant rsrp diff", it is positive when the primary reception antenna is better, negative when the diversity reception antenna is better, the diversity antenna should in most cases power on when the cellular is in use and start measurement, in contrast to the primary that's just switched on.
The signal can be measured in *#0011#, rssi is the signal strength of the frequency, the signal strength of intra freq (same frequency) neighbors (other cell towers etc) may differ slightly anyway because it's missing a decimal point; rsrp (good maybe at least -120, get it closer to -1) is approximately the signal strength of the cell, it is a few antennas in the long rectangular boxes on a cell tower, note that it is the measurement of the reference signal not the data that is being sent to your phone; rsrq(good maybe at least -15, best -1), sinr (good maybe at least 0, best 40), are signal quality. The "registered plmn" is the currently connected operator (mobile country code and mobile network code), if it changes (different compared to the sim), the signal is low! The "PCI" is the currently connected cell, note that there are only ~500 of these, so to identify the cell you can use both PCI and TAC (region), if the pci changes and the signal strength drops, well, the signal dropped and a reselection is made to an inferior cell, which can then drop data... in this case contact your mobile network operator but they might not make changes if it only affects a few users. You may try to lock band/etc to the good cell that sometimes drops in quality for a second but overall better than the neighbour cells.
Here's a short list of scenarios that can cause problems in connectivity, not all.
1: Low signal, plain old low signal. If the phone can't register VoLTE the bands that can be connected to may be restricted on some MNOs.
2. The antenna is closed and this causes low signal.
3. Low signal of the serving cell, the signal of an inferior neighbour cell matches (above parameters!), the phone changes to another antenna on a cell tower, quality drops and so does the connection. On another cell tower or there are 2 antennas on 1 cell tower, for example 1 facing the azimuth 180 degrees, another 270, the phone being in 215 degrees is unfortunate!
4. The antenna is open and receives interference (and reselections, sometimes good) from neighbour cells.
5. Good signal but it has been echoed a bit too much.
6. Reject causes and others, where the connection has been disconnected for some reason. Probably not in this case! It is viewable in *#9900# > Take cp log > copy to internal sdcard. It is in the /internal storage/log/LitmusLog. Scroll down to the reject cause section, those are error codes.
None of these codes/volte are working: The CSC is not applied correctly! Flash stock rom and open the stock recovery or copy /system/csc/...csc.../system/ to /system/etc/.
I do not recommend anything EFS/PIT, making a backup of efs is OK!
Hi,
I am facing the same problem with a7 2016 with JIO sim.
The mobile is purchased in dubai and when insert jio sim in india, was not able to use volte service.
So I flashed official indian rom. Everything is fine except net speed. Net speed between 1-5am is very fine but in day time speed reduces.
Everytime i have to restart data to use net but after a while same problem occurs.
Tried in both sim trays. I am using single sim in mobile.
Pls provide a solution.
Regards
//aftab