Database Users

How to improve phone sensivity to network

It seems to me that Universal phone sensivity is to bad.
It is frequent at less good GSM coverage areas, I'm to be the first one who can't make calls with my Universal phone. Even considering only the subscribers of the same operator as mine.
Usally also get the lowest signal strength indication.
Do you have similar feelings?
Is there anyway to improve this?
If feel it is not a SW or Radio.nbf version problem. It should be related with some HW weakness?

You could set the radio preference to GSM only - some users have reported improved performance compared to the setting for GSM + UMTS.

[Q] Is Android any better than windows as far as signal reception?

Is Android any better than windows as far as signal reception? coz mine is really bad only get a low G signal most of the time. I have standard settings as shown and with virgin ,live in west sussex

Since the actual gsm phone hardware (radio) is seperate from the hd2 hardware and it is controlled by the radio rom, Android won't probably have any difference. Only signal bar "reporting" or 3g - 2g switch threshold "may" change and that is software.
Note: radio does not mean fm radio.

I get better call quality and reception in windows...

Reception issue

I've placed my Omnia 7 next to my girlfriend's Focus in a place in my house that has traditionally been very poor in reception. She is able to get 1-2 bars on 3G compared to my NO SERVICE-zero bars on EDGE under the same network (ATT). Is anyone else getting fairly weak reception on their Omnia and is it all possible that my 4 year old SIM card is accounting for the difference in signal strength?
Next chance I get, I'll try swapping our SIMs....

I am not too sure of this but maybe the Omnia 7 isn't using its full potential on the US carrier since it is a EU device. (this shouldn't matter really but I am trying to say that it might be a software issue of how the phone switches connections)
By that I mean that some forum members (check the Focus Forum) have fiddled with the diagnostic codes to make their Focus phones have a more stable 3g or above connection.
Trying looking into that and posting there since the Omnia community is a little bit smaller it seems.
Or the phone is just not up to scratch ;D

Eriatarka said:
I've placed my Omnia 7 next to my girlfriend's Focus in a place in my house that has traditionally been very poor in reception. She is able to get 1-2 bars on 3G compared to my NO SERVICE-zero bars on EDGE under the same network (ATT). Is anyone else getting fairly weak reception on their Omnia and is it all possible that my 4 year old SIM card is accounting for the difference in signal strength?
Next chance I get, I'll try swapping our SIMs....
Click to expand...
Click to collapse
It could be your SIM if its old and not a 3G sim. Do you get 3G elsewhere?
The reason i ask is that EDGE is a 2G tech.
I work in mobile tech support myself, and i have seen SIM cards cause some seemingly random issues. (1 in particular was a handset unable to read SIM contacts, but his prior phone was OK)
On the other hand, i have also noticed 1 bar less then was displayed by my prior HD2. I have dismissed this as you should not reply on the number or bars to determine signal strength. They are coded differently. There is no standard, and in fact, changes by the Carrier can effect 'bars' displayed on the phone. (Think of a little buzz box with a 20ltr tank reporting 1/2 full, while a 4x4 with a 40ltr tank reporting 1/4. Both have the same amount of fuel)

ive noticed i get a bar or two less than my girlfriends desire and my diamond2 all on the same network & with new sim cards. this generaly means when she has 3G or HSDPA im stuck with GPRS unless were in an area with 3 or 4 bars.

Not entirely sure, but I think the Omnia 7 doesn't support US 3G frequency bands, that's why it's limited to EDGE - and then it depends on where you live... I suppose it's entirely plausible AT&T has a strong 3G network in your area, but not an EDGE one

mine has a good reception ... as good as other devices ...

In my House I sometimes got 4 dots but when a call comes through the connection is lost between talk without walkin on the same spot.. First I thought ok bad reception (had not before with my xperia1) But yesterdaynight I got the same problem outside my home. So the conversation gets totally jammed.
And I live in the Netherlands and not in the county side but in the big city...

So I managed to switch the SIMs on my girlfriend's Focus and my Omnia and unfortunately the poor signal remained on the phone, ruling out the SIM card having any negative effect.
I will get 3G outside my home and sometimes 3G+ (I'm not sure what the difference is), but inside my house, side-by-side, the Focus gets better reception and is more often on 3G whereas my Omnia will get worse reception often on EDGE.
Lame!
I might have to drop some cash for ATT's Microcell... Damn you ATT.

I notice it as well.
When I used my HD, the reception was fine inside MRT tunnels. Now with my Omnia 7 (same SIM card, by the way), I can't get a clear signal inside MRT tunnels during my commute.
Shame.
I don't know what caused it, though.. Anyone can shed a light on the issue ?

Mine has just suddenly started to not have any signal ANYWHERE in the house... the other 2 Vodafone phones here have near-full signal.

Eriatarka said:
So I managed to switch the SIMs on my girlfriend's Focus and my Omnia and unfortunately the poor signal remained on the phone, ruling out the SIM card having any negative effect.
I will get 3G outside my home and sometimes 3G+ (I'm not sure what the difference is), but inside my house, side-by-side, the Focus gets better reception and is more often on 3G whereas my Omnia will get worse reception often on EDGE.
Lame!
I might have to drop some cash for ATT's Microcell... Damn you ATT.
Click to expand...
Click to collapse
Hi I think I have found you a solution. Having been on the Focus forums I have noticed that people have enabled full "3g" through the root menu in diagnosis software.
http://forum.xda-developers.com/showthread.php?t=839154&page=8 ..... read this first please. Looks like it enabled full 3g but messed up his GPS settings (could be that he configured it wrong) Always make sure that you write down your original settings when using Diagnosis tool!!!!!!
If this doesn't help you then maybe flashing a different rom onto it would work.

I played around with some of the diagnostic settings but nothing really changed.
How exactly do I access the root menu to change the 3G settings you mention?

*#197328640# - Root Menu
Things you can do with this code
Speed up your internet by enabling hspda/hsupa
*#197328640#
1,8,3,5,2,3,[END]
Just be careful with this stuff. And always remember to back up your previous settings by writing them down somewhere so that you can restore it.
The link I gave you above leads to these codes.
BTW .. samsung updated the diagnosis tool .. if you have 0.9 something you might be fine! But if it updated then you will not be able to get into the root menu.

Is there a way to disable and re-enable LTE bands from within Android (sans USB)?

Is it possible to write NV values directly to the Nexus 6P's NVRAM, from within Android, and not over USB? And is it possible to commit the new NV values by just rebooting the modem and not the phone?
Samsung phones have this ability. They have a native service mode tool built-in that lets you choose a band and it disables all other bands automatically.
Also, are people not aware of the immense benefit of being able to do this? When LTE speeds are slow, it's usually because the modem is connected to a low frequency tower that is very far away, and the attenuation is only allowing for ~1mbps, but the modem sticks to it because the signal is equal to the nearest high frequency antenna, even though that high frequency antenna would give 5mbps+.
With Samsung's tool you can simply disable the offending low frequency bands (B5/B12/B13/B17/B20/B26), and the modem will switch to one of the available high frequency bands (B2/B3/B4/B7/B25/B40/B41).
A reverse scenario to this would be where too many people are on the high frequency bands, and the tower's QoS is dividing the speed by the number of connected handsets, which frequently reduces the speed to almost nothing. One could then disable the high frequency bands and get a low frequency band with better speed.
Is there a tool or module that does this on the Nexus 6P?

Problem with internet connection a7 2016 710fd

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