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[Q] Cell reception and WiFi issues

I hope by posting this here we can find an answer to a problem that a lot of OPO users are complaining of. the device has a terrible cell and WiFI reception when compared to other devices in the same area and using the same wifi networks.
Cell reception:
I`m on a 4G network . however i find that i have 0-1 bar almost all of the time in areas where i used to have 3-4 bars. and as a result i constantly get missed calls notifications. I read that switching to 3G in the phone settings might help, and that`s when i ran into the second problem. Switching to 3G will indeed give me better reception 3-4 bars but then the whole connection becomes erratic, and the phone will go from 3 bars to ``no connection`` back to 4 bars 4 to 5 times every minutes and i will lose mobile data totally on 3G.
WiFi reception and connection:
I have a secure 802.1x connection at work spread over 2 buildings. the phone will connect to 1 only and will not connect to the same network in the other building at all. both have the same SSID , settings, and login information. but the phone will just cycle between `connecting`` to `` secured with 802.1x``. I tried all roms available and the only ROM that worked was `Gummy ROM``. only when using that ROM, is the phone able to connect to that WiFi network!! and i have no explanation for that.
All these problems I mentioned above are consistent across all roms and there seems to be no answer from OPO support or on the official forum for the phone. I hope someone can provide me with a solution or an answer to this.
Thank you all

asem said:
I hope by posting this here we can find an answer to a problem that a lot of OPO users are complaining of. the device has a terrible cell and WiFI reception when compared to other devices in the same area and using the same wifi networks.
Cell reception:
I`m on a 4G network . however i find that i have 0-1 bar almost all of the time in areas where i used to have 3-4 bars. and as a result i constantly get missed calls notifications. I read that switching to 3G in the phone settings might help, and that`s when i ran into the second problem. Switching to 3G will indeed give me better reception 3-4 bars but then the whole connection becomes erratic, and the phone will go from 3 bars to ``no connection`` back to 4 bars 4 to 5 times every minutes and i will lose mobile data totally on 3G.
WiFi reception and connection:
I have a secure 802.1x connection at work spread over 2 buildings. the phone will connect to 1 only and will not connect to the same network in the other building at all. both have the same SSID , settings, and login information. but the phone will just cycle between `connecting`` to `` secured with 802.1x``. I tried all roms available and the only ROM that worked was `Gummy ROM``. only when using that ROM, is the phone able to connect to that WiFi network!! and i have no explanation for that.
All these problems I mentioned above are consistent across all roms and there seems to be no answer from OPO support or on the official forum for the phone. I hope someone can provide me with a solution or an answer to this.
Thank you all
Click to expand...
Click to collapse
I'm getting the same problems.
Where signal is always strong, it seems to work OK, but with weaker signal it just screws up!
Its really pissing me off as i've take the phone to work for the first time, just to find out I cannot get any signal there, where by my HTC Desire worked just fine.

Also getting exactly the same problems. It is impossible to use OPO where signal is not so strong although other phones work flawlessly. Reception signal strength goes up and down all the time from full to none bars. Data connection is inconsistent.
Anyone with weak inconsistent signal strength vote here: https://jira.cyanogenmod.org/browse/BACON-132

I still hope that what we are experiencing is due to firmware and drivers issues that can be solved by the developers on XDA. However, the complete silence by OnePlus and Cyanogen regarding this issue despite the number of people complaining, makes me worried that it's a bigger hardware issue that they are trying to avoid and move into "we'll fix it in the next version of the phone” kind of scenario.
Sent from my A0001 using Tapatalk

asem said:
I still hope that what we are experiencing is due to firmware and drivers issues that can be solved by the developers on XDA. However, the complete silence by OnePlus and Cyanogen regarding this issue despite and number of people complaining makes me worried that it's a bigger hardware issue that they are trying to avoid and move into "we'll fix it in the next version of the phone” kind of scenario.
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
That would be bad scenario. I hope that it is just software problems. But seeing how OnePlus deals with the problems I also have doubts.

I would say it's software baseband/modem and CM needs to step it up. My Nexus 5 has a better signal strength. But then Google has a much bigger development team than CM or One plus. My friend has the GS5 and it has the snapdragon 801 chip set and it has a much better signal strength.
So ether the One's antenna is not that great or it a software problem.
As you can see the controller is on chip.
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I don't have it as bad as some have posted so hope things get fixed for all.

Yeah. Many users are having problems with cell reception.
It's a shame.

My wife & I both using OPO international version, both of us facing poor signal & sound problem when we get them. Sound problem is currently handled by boosting the sound but frankly the sound is a bit deteriorated. The signal problem is better a bit now by installing oppo 7 radio. Hope the team can put more effort on the signal problem. It is phone!

I have this issue too, but I think this is a hardware problem, because CM and OPO teams do nothing for fix this problem, and Chao Chen at CM Jira says that this poor signal is a normal... I realy think about selling my OPO and buy another phone...

I have pretty crappy signal on mine too (London UK). Signal strength fluctuates wildly even by moving the phone in a different direction. I've reverted to the previous modem via a flash .zip and things seem a bit better but it's early days. I would have thought that number 1 priority for a phone is that it actually works well as...well, a phone!
Disappointed that the 'giant killer' tag doesn't quite match the reality.
I sincerely hope there are improvements but I have my doubts.

virgopunk said:
I have pretty crappy signal on mine too (London UK). Signal strength fluctuates wildly even by moving the phone in a different direction. I've reverted to the previous modem via a flash .zip and things seem a bit better but it's early days. I would have thought that number 1 priority for a phone is that it actually works well as...well, a phone!
Disappointed that the 'giant killer' tag doesn't quite match the reality.
I sincerely hope there are improvements but I have my doubts.
Click to expand...
Click to collapse
I don't have this problem on O2 uk wonder if its anything to do with 4g which isn't supported on this network. Have any of you tried PAC rom.

This problem is really starting to be a major issue for me. I expected some improvement by now.
Does anyone know is this has been confirmed as a radio/kernel issue or a hardware issue (antennas maybe).

Sometimes LTE stops working

I am on T-Mobile my nexus 5 is stock unrooted and when I'm on YouTube it will switch to h and I will have to leave it off for a few minutes for it to have LTE again I don't know whether its the phone or T-Mobile
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I don't get this problem on T-Mobile. What firmware are you on?
Sent from Tapatalk on Nexus 5

I am on ktu84p with m8974 baseband it has been doing this since Saturday on and off I use a lot of data because my home internet goes out a lot but I have unlimited data with unlimited data it is almost like T-Mobile is throttling me but why I have unlimited

Could it be a problem with the radio I called T-Mobile they said that there is no problems on there end should I RMA it if that would make a difference or would the new nexus 5 do the same thing

It seems to be suffering other problems as well like awful battery life and it gets hot very easily all of this after updating to 4.4.4 don't want to root it again but either root it or get a new one

very little of this screen on time it never used to drain this fast

If you're on stock and you haven't made any changes, the problem is either on T-Mobiles end or the hardware. If you called T-Mobile and they said there's no service outage I would look into an RMA.
Sent from Tapatalk on Nexus 5

I have ran into a few other problems as well the battery issue and it getting hot as far as I know it's a big problem I think I will root the next one when it gets here tomorrow

That's the N5 for you. I just got another one after a 6 month hiatus and I forgot how crappy the radios are in it. With my most recent phones, iPhone 5s and Moto X, I would ALWAYS be on LTE in my area. There is a tower nearby so signal strength is not an issue. Even outside my area, neither of those phones ever dropped LTE. The N5 on the other hand drops down to HSPA+ all the damn time. I have to toggle airplane mode to get LTE back up and it always comes back with near full bars so again, not a signal issue. I've had 3 N5's in the last 2 weeks and all of them did the exact same thing, and my original N5 that I got when it first came out also did it so it is clear to me that it is just a fact of life with the N5. This is a prime reason why I am sticking to Motorola from here on out.

Is it just the Youtube app or is it just when you start using a lot of data?

When using a lot of data I just got the replacement nexus 5 and it doesn't seem to be doing but I am on purity ROM I will have to see if it does it with this one

Your LTE signal is terrible in that screenshot . It's simply switching when apps can't get a good connection to LTE. If it's that bad, I'd save the trouble and toggle LTE off.
---------- Post added at 07:53 PM ---------- Previous post was at 07:53 PM ----------
And I bet if you have a strong signal, it doesn't happen?

Your suggestion works I get almost full signal h+

I have been noticing the same thing on my Nexus 5 on T-Mobile. If I am receiving only 1 bar of LTE I will sometimes loose LTE and it will never come back until I am in an area with strong LTE for a while.
Sent from my Nexus 5

N5 Terrible Reception

Hey everyone,,
I'm in the UK, on 3, and my N5 gets terrible reception pretty much everywhere, mainly indoors. Was wondering if anyone in here has the same problem, trying to figure out if it's the network or the phone itself, though before I had the N4 and didn't have a problem.
Swiching from 4G to 3G as preferred network doesn't make a difference.
Cheers.

Indoors will be limited by the laws of physics, same for any network
Though there are simple logic tests to narrow down the issue further:
- Anyone else on the same network around you with same reception issues?
- Tried your SIM in another unlocked phone?
- And a different SIM in the N5?

Hey Eddie, cheers for the reply.
- No one else here on 3
- Works fine on my N4, no reception problems
- Not yet, plan to
Cheers.

I don't if its placebo or something, but I think flashing KRT16M radio helped my reception.

@DaaT
Don't go flashing radios just yet, won't necessarily make any difference.
When doing the comparison testing, best to use a signal measurement app, or view the strength in dBm in the 'about phone' section. Signal 'bars' aren't really a standard measurement.
If the N5 consistently gets lower signal strength readings with multiple SIMs compared to other devices, then more than likely device issue.
Good idea to still check with other Three users when you get the chance.

Hi Eddiehk6,
Not planning on flashing anything, phone's unlocked but not rooted and fully stock (used to flash ROMs left & right until a couple of years back, but since I've been happy staying stock).
I haven't the a chance to try another SIM in the N5 yet, but wrt to signal, I checked last night at home and was getting -100/101 dBm and 39/40 asu. Right now, here at work, I get 0, zero, nada.

Signal indoors isn't particularly strong for Three here in the UK due to the frequency bands they use for their 3G network. Along with this, they have no 2G network to fall back on and their low-frequency VoLTE-capable network is limited to a few devices in certain areas.
Sent from my Nexus 5 using Tapatalk

dkconor said:
Signal indoors isn't particularly strong for Three here in the UK due to the frequency bands they use for their 3G network. Along with this, they have no 2G network to fall back on and their low-frequency VoLTE-capable network is limited to a few devices in certain areas.
Click to expand...
Click to collapse
Fair enough, strange though that I never had issues with my N4, both at work and at home. Anywhere really. Checked last night at home and again, signal went down to 0. It's weird...
Keep forgetting to bring the SIM ejection bit to work so I can try someone else's SIM card Guess I could also open it and check the antenna connectors at the bottom.

Removing the Black Cable that runs along the right side of the Nexus 5 that controls the data connectivity and plugging it back in and making sure it was really tight helped me solve the issue. I made sure to tape it too.
As for GSM connectivity issues I had, i sought to using this trick I found online: http://forum.xda-developers.com/google-nexus-5/general/hardware-mod-increse-signal-strength-t2842599
You also might want to unlock some extra bands incase: http://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561
Edit:
The right side shows the cables you want to remove and reinstall and tape it down to the connectors. Make sure they are held tightly:
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Cheers for the info Furrydaus.

Cellular strength and throughput

We know how much you like to stream, ahem, "videos", and so cellular data is mega-important. Rate this thread to express how you think the Xiaomi Mi 5's LTE performs. A higher rating indicates that it's fantastic: throughput is excellent and signal strength is top-notch.
Then, drop a comment if you have anything to add.

LTE weak signal
HI,
I have a real problem with my Mi 5, the cellular card seems not to work properly, indeed it constantly changing from one network to another , es: from 4G to H+ to H so the LTE cell is not well detected.
I have made some test with SpeedTest using two smartphones ( Z1 on the left - Mi 5 on the right ) with the same Network operator and into the same place but the result are completely different see the enclosed image . Does any one have the same problem?
Thank you
S
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I can confirm that I have same issues, I sometimes drop to E. I have never had issues like this previously with any of my Nexus phones. There is definitely something wrong here. WiFi isn't any better. I can't connect to router from place in my house where Nexus 5 does just fine with 4 out 5 bars.
Not good.

I'm thinking on buying this phone, I live in the US but as far as I know, none of the LTE band this phone uses is compatible with any US carriers, right?
I use MetroPCS, btw.

Have Band 3 LTE in my country but cant access it at all! maximum HSDA+ but no LTE
Using Mi5 pro official China stable ROM

Yes with latest 7.5.1.0 I got some issues with cellular.
(usa/tmobile)

LordTao said:
Have Band 3 LTE in my country but cant access it at all! maximum HSDA+ but no LTE
Using Mi5 pro official China stable ROM
Click to expand...
Click to collapse
Same problem as lordtao

I also have problems. It usually switch to E or No Signal for a while. Maybe with public kernel source someone could fix that.

Using MIUI 8, I notice that phone will switch to "No Signal" for a very brief moment and then went back.
Didn't have that kind of problem in CM 13/ CM 14.

thox851441 said:
Using MIUI 8, I notice that phone will switch to "No Signal" for a very brief moment and then went back.
Didn't have that kind of problem in CM 13/ CM 14.
Click to expand...
Click to collapse
I'm interested in buying this phone. Can we please get more feedback, guys? Maybe reception (WiFi too apparently) is bad with official ROM but ok on custom ROMs?

Cultar said:
I'm interested in buying this phone. Can we please get more feedback, guys? Maybe reception (WiFi too apparently) is bad with official ROM but ok on custom ROMs?
Click to expand...
Click to collapse
:good:

I'm able to get consistent wifi, able to stream videos from my home server smoothly. Full connection throughout the house.
But cellular is a bit patchy, sometimes dropping to "Emergency calls only" while moving (for example, car, bus).
It's good while stationary, but often sits just short of full bars.

Mynerz said:
I'm able to get consistent wifi, able to stream videos from my home server smoothly. Full connection throughout the house.
But cellular is a bit patchy, sometimes dropping to "Emergency calls only" while moving (for example, car, bus).
It's good while stationary, but often sits just short of full bars.
Click to expand...
Click to collapse
Same issue here, static is OK, but when fast moving in a car or any transport **** happens.
I'm using Global Stable 8.1.4.0(MAAMIDI).

Does anyone else get lower signal bars than previous phone?

On my S7 Edge I always had near full bars. On this one(same sim card and service-cricket) I get lower bars but my speed is incredible and even faster than previous phone. I get a 8.84 MBPS Download and 3.95 MBPS upload which is on par considering Cricket limits to 8 MBPS. My bars are never full though or even close. Could this just be a firmware error?
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Sent from my SM-G955U using Tapatalk

The one issue I'm having is constant drop of data ... playing online games I can see my ping range from 4 green lights to 2 Orange light a then back to 3 green.lovjt . It never stays in one spot which causes very bad lag...idk if this is an isolated issue...but I will reset the entire phone and such tonight to try and start "fresh" to see...

Opposite for me. Coming from LG v20, Wi-Fi and carrier speeds are much much better.
Sent from my VS995 using Tapatalk

johnwayne27 said:
On my S7 Edge I always had near full bars. On this one(same sim card and service-cricket) I get lower bars but my speed is incredible and even faster than previous phone. I get a 8.84 MBPS Download and 3.95 MBPS upload which is on par considering Cricket limits to 8 MBPS. My bars are never full though or even close. Could this just be a firmware error?
Click to expand...
Click to collapse
The amount of bars really doesn't matter, it's your signal strength that matters. Look in about phone and status and you should see a range of -80 to -120 dBm. -80 being great and -120 being worse. Ever go to a football game or large concert and have "full bars" but a crap connection? The tower may be close but can't handle the amount of people connected. Sometimes they have COW's (Cell on wheels) that's set up to prevent this from happening at large events but still may affect you.
Anyways, the only issue I have is switching from WiFi to 4G it seems that my connection isn't that great until I turn on and off airplane mode.

You can get a app like signal check .... That will give you your connection in decibels..... That's the true bars ..... Sprint used to always show 1x as bars... You could a call and have no data
Sent from my SM-G955U using Tapatalk

car.los.7399 said:
Opposite for me. Coming from LG v20, Wi-Fi and carrier speeds are much much better.
Sent from my VS995 using Tapatalk
Click to expand...
Click to collapse
Same here, my V20's wifi and 4g reception was weak as hell. I'm consistently 1-3 bars higher and I've got signal in places I didn't quite have before.

Outbreak444 said:
The amount of bars really doesn't matter, it's your signal strength that matters. Look in about phone and status and you should see a range of -80 to -120 dBm. -80 being great and -120 being worse. Ever go to a football game or large concert and have "full bars" but a crap connection? The tower may be close but can't handle the amount of people connected. Sometimes they have COW's (Cell on wheels) that's set up to prevent this from happening at large events but still may affect you.
Anyways, the only issue I have is switching from WiFi to 4G it seems that my connection isn't that great until I turn on and off airplane mode.
Click to expand...
Click to collapse
So then is this good? If so, ATT nesds a firmware update to correct the bars to reflect the signal. Btw thanks for letting me know that. Its a big relief lol I almost signed up for ATT's $90 plan. Glad I asked on here
Sent from my SM-G955U using Tapatalk

johnwayne27 said:
So then is this good? If so, ATT nesds a firmware update to correct the bars to reflect the signal
Click to expand...
Click to collapse
-73 is a very good connection.
And as for your statement, not necessarily something AT&T will do. Here's an article for you:
https://www.google.com/amp/www.digi...-your-smartphone-mean-we-asked-an-expert/amp/

Outbreak444 said:
-73 is a very good connection.
And as for your statement, not necessarily something AT&T will do. Here's an article for you:
https://www.google.com/amp/www.digi...-your-smartphone-mean-we-asked-an-expert/amp/
Click to expand...
Click to collapse
That is an excellent article. Thanks for that!
Sent from my SM-G955U using Tapatalk

About the same to more bars on my s8+ then the s7e

Even that article has it, while being in the -7X range is really great signal, you "can" see signal near -50. I've wireless devices at locations that sit in the low -60s. So not having perfect bars is definitely understandable at -73.
Anyway you shoot it tho, the signal bars are worthless unless you get used to what they mean for your phone mfg.
This actually all blew up big with the antenna gate with apple (though I imagine many forget it now), where people would drop reception depending on how they held their phone. Their bars were worthless and you had to put the phone in a dev like mode to see it in dBm. Then you had a realistic idea of what was actually happening (if you were seeing signal drops or not.)
I remember putting my hand in the "death grip" and seeing normal bars on the iphone but you'd switch it over to read dBm and you'd do it and be at -119 to -120 which is bad. Would be -7x to -8x sitting with no one touching it.