Database Develop

:: improve signal strength :: (rom/radio??)

I seem to notice better signal strength with certain ROMs, is this placebo? Do you guys notice this as well?
WHICH RADIO DO YOU GUYS USE ON THE G1?
I updated to the latest and it seems to be good sometimes... and piss poor other times. At my desk at work, I get ZERO data frequently (followed by 2 bars 3G or Edge). That is absurd.
Has anyone noticed improved signal with one radio over another?

There was a discussion on the nexus forums about undervolt kernels affecting signal strenght but I don't remember what the outcome was. Theory was that less power to radio=less signal strenght, so that might be a culprit. Other then that I can't think of anyway that a rom would be slower at internet then another lol.

^ yeah... admittedly it could be placebo, but I do seem to have better luck with certain ROMs.
Any idea about the radio's and if one is actually preferred?

[Q] Cell reception indicator constantly flips between "no reception" display and bars

[Q] Cell reception indicator constantly flips between "no reception" display and bars
I'm using the Xperia Z3 Compact on TMobile's network in the US.
About 1/4 of the time when I turn on the display the phone indicates that it has no cell reception:
1) The phone shows no bars of reception, and a red X over the bars
2) The lock screen reads "Emergency calls only"
However, within a second or two the phone appears to acquire an excellent signal and I get a full 3-4 bar display. All of the areas in which I use the phone are marked as "Excellent" on TMobile's coverage maps.
This also happens intermittently while I'm using the phone. I'm not sure if it's actually losing the signal or if it's just a software issue. I've never had it drop a call or cut out while I'm talking.
I'm getting only acceptable battery life from the phone (about 25% at the end of the day) despite light usage and conservative app installation, even though this phone has a reputation for excellent battery life. My theory is that this might have to do with the phone constantly disconnecting from the network and then having to re-aquire a signal.
Anyone else had this experience with the Z3C?

Hey mate.. I posted the exact same issue a couple of months back. I was experiencing this exact same issue.
I've had my LTE disabled for about a month now and haven't had a single drop.
Not sure if LTE is a dealbreaker but since my device is a business line, I can "suffer" with better battery life and slower internet if I'm not dropping calls. I've considered trying a ROM with updated radio firmware but figured I'd wait to see what the current Lollipop update does ('ll re-enable LTE once I install it and see if it repeats the same behavior) for my phone before trying a 3rd party system.
Hope this helps

sh0nuff said:
Hey mate.. I posted the exact same issue a couple of months back. I was experiencing this exact same issue.
I've had my LTE disabled for about a month now and haven't had a single drop.
Not sure if LTE is a dealbreaker but since my device is a business line, I can "suffer" with better battery life and slower internet if I'm not dropping calls. I've considered trying a ROM with updated radio firmware but figured I'd wait to see what the current Lollipop update does ('ll re-enable LTE once I install it and see if it repeats the same behavior) for my phone before trying a 3rd party system.
Hope this helps
Click to expand...
Click to collapse
Thanks! Really gratifying to know that it's not just my device. Seems like there's a strong possibility this is the issue since I'm on a MVNO that's only been on this LTE network a few months. I've flipped the device into GSM only mode and we'll see if it helps.

Dumb question how do i flip it into gsm?

qylie said:
Dumb question how do i flip it into gsm?
Click to expand...
Click to collapse
Settings>More>Mobile Networks>Preferred Connection type> GSM only
Sent from my D5803 using XDA Free mobile app

Thanks!!!

I'm having the same issue as you have described. For now I've set the phone to 3G prefered. Looks instantly better. Signal strength is also better.
Provider: Simyo (KPN network) - The Netherlands
Edit - Issue solved:
I switched from the Lollipop Baltic ROM to the Lollipop KPN carrier ROM for The Netherlands. The switching is gone for me. Battery life drastically went up.

Any update on this? I just started experiencing this issue out of no where about 2 weeks ago. I'm not rooted or anything, can't afford to due to job security requirements and such.

S8 Battery Usage with Network Extender?

I actually have an unlocked S8 on Verizon, but I think the question is generally applicable to all of the firmware versions.
I recently switched from AT&T to Verizon. While the switch has been great in general, it has lead to low signal in our basement where my office is located. While calls/texts seem to work in the basement, I'm noticing reduced battery life due to the reduced signal.
I picked up a (3G) Network Extender to try to improve the situation, but it seems to behave differently than I would have expected. I wasn't thrilled to have to disable VOLTE in order to use the extender at all (since it isn't the LTE version), but the bigger issue is that it *seems* like the device is still using the cell towers except when there is an actual incoming or outgoing call. Is that correct? What does that mean from a battery usage perspective?
In the end, I'm trying to figure out whether there is any real value in using the extender if it doesn't improve battery life? Can anyone comment?
Thanks,
Craig

csetera said:
I actually have an unlocked S8 on Verizon, but I think the question is generally applicable to all of the firmware versions.
I recently switched from AT&T to Verizon. While the switch has been great in general, it has lead to low signal in our basement where my office is located. While calls/texts seem to work in the basement, I'm noticing reduced battery life due to the reduced signal.
I picked up a (3G) Network Extender to try to improve the situation, but it seems to behave differently than I would have expected. I wasn't thrilled to have to disable VOLTE in order to use the extender at all (since it isn't the LTE version), but the bigger issue is that it *seems* like the device is still using the cell towers except when there is an actual incoming or outgoing call. Is that correct? What does that mean from a battery usage perspective?
In the end, I'm trying to figure out whether there is any real value in using the extender if it doesn't improve battery life? Can anyone comment?
Thanks,
Craig
Click to expand...
Click to collapse
The 3G extender only routes when there is data going to or from your phone (phone calls). You should see a little icon indicating that you are connecting to the extender. I had 2 of the 3G extenders, neither did anything to help my cellphone battery. I also had continuing issues with losing the GPS sync signal almost daily, even with the external antenna connected and outside away from the house. Verizon has also said that they are "retiring " 3G at the end of 2019 in my area. I bought their new 4G extender, and it works like a miniature cell tower - phone is always connected to it when in range, and it does seem to help with the battery life. Data / messaging / VOLTE works *much* better. Best of all, GPS lock has been solid with no drops at all. If you bought the 3G extender from a Verizon store, take it back and get the 4G instead - works sooo much better!

rhricik447 said:
The 3G extender only routes when there is data going to or from your phone (phone calls). You should see a little icon indicating that you are connecting to the extender. I had 2 of the 3G extenders, neither did anything to help my cellphone battery. I also had continuing issues with losing the GPS sync signal almost daily, even with the external antenna connected and outside away from the house. Verizon has also said that they are "retiring " 3G at the end of 2019 in my area. I bought their new 4G extender, and it works like a miniature cell tower - phone is always connected to it when in range, and it does seem to help with the battery life. Data / messaging / VOLTE works *much* better. Best of all, GPS lock has been solid with no drops at all. If you bought the 3G extender from a Verizon store, take it back and get the 4G instead - works sooo much better!
Click to expand...
Click to collapse
This is good to know. I actually bought this off of EBay for cheap, so I can't easily swap it out. At that point, I didn't understand the behavior of the device and phone.

Sim Signal reception battery drain

Hello.
I have noticed that mi9 has weak antenna or something is going bad. Previously I was using OnePlus 5t and I haven't noticed any significant battery drain from signal reception. Now in battery stats signal takes most of the time 1st place on the list of battery usage.
I was trying to figure out something with *#*#4636#*#* in dialer but I haven't found anything suspicious other than Sim 2 was even though not used seems like it's trying to connect to antennas.

Any time I am in "2 bars" or less on any of the phones I have had I notice significant battery drain from signal.
That said, the Mi 9 seems to have better signal reception than my roommates old iPhone or her new Pixel 3. There are areas with bad LTE coverage and I can often maintain LTE when she cannot, and I typically have higher cell signal strength.

I have week signal reception on 4G compared with my other devices on the same sim and in cases where I am in spots/places with weak 4G coverage it changes to 3G although my other device remain in 4G.
I have tested against some more devices but always MI 9 is weaker.
I can force it to keep the 4G with "LTE only" option but that's not really a solution.
Mi 9 on the right side of the photo

Question Mobile Signal Module

Hi All,
I moved over from Samsung to the 11t Pro and am loving the phone so far. A few tweaks needed here and there, but generally its a cracking phone for the price!
The only thing i do have an issue with is mobile signal. It fluctuates constantly between strong signal and no signal. This could be related to the network, but I don't have another SIM to test this with and never had the issue with the Samsung, although that wasn't a 5g phone.
I know with Samsung you could flash independent mobile modules. I cant remember exactly what they where called. Basically some would have amazing battery life, but rubbish signal and others have would give amazing signal at the sacrifice of the battery. Some where perfectly balanced.
I'm not sure if anyone knows what I'm talking about or could shed any light? I'm wondering if there is something similar for the 11t Pro?
Cheers!

riso123 said:
Hi All,
I moved over from Samsung to the 11t Pro and am loving the phone so far. A few tweaks needed here and there, but generally its a cracking phone for the price!
The only thing i do have an issue with is mobile signal. It fluctuates constantly between strong signal and no signal. This could be related to the network, but I don't have another SIM to test this with and never had the issue with the Samsung, although that wasn't a 5g phone.
I know with Samsung you could flash independent mobile modules. I cant remember exactly what they where called. Basically some would have amazing battery life, but rubbish signal and others have would give amazing signal at the sacrifice of the battery. Some where perfectly balanced.
I'm not sure if anyone knows what I'm talking about or could shed any light? I'm wondering if there is something similar for the 11t Pro?
Cheers!
Click to expand...
Click to collapse
Just remembered it was the modem modules! Are these available for the 11t Pro, so we can flash and test different ones to increase battery life or signal etc.?

I've the exact same issue and I can confirm that the issue is caused by some networks only because I tried multiple sim cards and I got the issue with only one network and the others are working fine, but this specific network has good coverage and works fine with other phones, is there anything I can do to fix the signal drop with this specific network?
Thanks.