Unstable signal strenght on LTE version - Mi 3 Q&A, Help & Troubleshooting

Hello, is possible to fix unstable signal on non miui rom for mi4 LTE version? I have this version and I have really unstable signal, one time full and after 2 seconds 1/3 of signal and after a few seconds 2/3 or full again.
Edit: sorry for posting it on mi3 section, I missed it.

Related

[Q] LTE signal?

I was on MOKEE 4.4.2(release) for several months and had a VERY good LTE signal. I decided I wanted a little change so I flashed CM 11. I noticed my LTE signal was very weak. It seemed it was ONLY my LTE signal. Were I would typically have full bars on LTE (5 out of 5) with MOKEE, I would only have 2 to 3 bars out of 4 on LTE with CM 11 sometimes it would go as low as 1. I also verified with speedtest that it DOES impact my speed. After some research I found this is a common issue with certain CM base roms with no solution I could find. My question is for people that have experienced this issue. Which ROMS (prefer kitkat) does not have this issue? I can verify for anyone else curious that I did not have this issue AT ALL with MOKEE 4.4.2(release). I can also verify that I DID HAVE the issue with PROBAM as well. I think if we made a list of all the roms and how the LTE signal was it could be very helpful for people in the future. Thanks!

Losing Network (Carrier) Signal every few seconds on 5.1.1 Stock Rom (G800F)!

Hi,
I just updated my device to the official lollipop (5.1.1) firmware and already tried different ROMs for different countries in Europe (carrier specific and not, my carrier is BASE/o2 in Germany) With each of them I noticed a really strange behaviour: My network signal drops every few seconds so that my statusbar shortly shows the no signal indicator. After that I do get signal again but the device will lose it after another few seconds. The strange thing about this is: If I try to make a call, I'am able to telephone as long as I want so it seems that there is no real signal drop... However it sucks and somehow I got really bad battery stats... May anyone help? I would appreciate it!
Thanks

Mi5 lte issue with all roms

Hello Fellow MI5 Users,
I am writing this thread to see if anyone else is having issues like me with my Mi5.
The problem is the intermittent signal issue with LTE, My problem started when I flashed 6.7.28 miui 8 update at first I thought that it was my Network Provider, but when I checked my dad's and sisters phones (same provider) their 4G signal is very stable without any issues at all.
So to describe my problem this is what's happening to my phone.
My phone is now running the latest Global beta miui8 6.8.12
When switching to LTE as prefer connection my phone signal goes crazy from NO SIGNAL - NO SERVICE - EMERGENCY ONLY - NO SIMCARD as I dig in to my settings i change my preferred connection to 3G Only which in my surprise works well and perfect without any issues but the problem here in my country(Philippines) you cannot rely on H or H+ at all since the network provider service sucks bigtime!
So far here's a list of what I did with my phone to fix it
- Flash back to China miui8 later version that I remembered that I don't have any issues with my LTE(Sucks because the issue was there also when I went back)
- Flash to MIUI 7 (Ohh well at this point I thought going back to miui7 will fix this issue but NO, not at all and I'm losing patience)
- Flash all KINDS of CM Based OS (Well switching OS might solve the issue, But believe me it got worst! after flashing all kinds of CM Based OS on my MI5 it all went down to Reboot forever bug (this happens when my phone boots and phone started to connect to LTE)
- Went back to Global beta miui 8 6.8.12 basedband version TH20c1.9-00038 up until now im still using this version.
----SHOUTOUT SA MGA KAPWA KO PINOY!
James Manaois Cruzat
I have also problem,cant get lte on my device max i get is H+,bought phone 2 weeks ago and i use global stable rom.
chaotico said:
I have also problem,cant get lte on my device max i get is H+,bought phone 2 weeks ago and i use global stable rom.
Click to expand...
Click to collapse
Could it be you're own carrier hasn't got coveridge for LTE for your device?
Sent from my MI 5 using XDA Premium HD app
In my country lte is Band 3(1800) and mi5 should support that band,right?
marcel112 said:
Could it be you're own carrier hasn't got coveridge for LTE for your device?
Sent from my MI 5 using XDA Premium HD app
Click to expand...
Click to collapse
For me my carrier do support coverage for MI5, but just recently it went nuts
hi im using official global rom with my mi5 but i cant make native video call on my gsm operotor because of not support miui 7 and 8 so.. is there a rom support native video calling like samsung ?
Mi5 Prime user here. same problem with LTE as well using GLOBE sim, no problem with SMART so far. using China ROM MIUI 8
here are my observations
GLOBE switched to LTE - stable when stationary.. goes NO SIGNAL / EMERGENCY CALLS ONLY when moving in a vehicle
i guess there is a problem on the radio signal switching from H+ to LTE vise versa. unlike my other phone - Meizu M2 Note. no problem switching between 3G / H+ / 4G.
xantrium said:
Mi5 Prime user here. same problem with LTE as well using GLOBE sim, no problem with SMART so far. using China ROM MIUI 8
here are my observations
GLOBE switched to LTE - stable when stationary.. goes NO SIGNAL / EMERGENCY CALLS ONLY when moving in a vehicle
i guess there is a problem on the radio signal switching from H+ to LTE vise versa. unlike my other phone - Meizu M2 Note. no problem switching between 3G / H+ / 4G.
Click to expand...
Click to collapse
Sucks right? I wanted to switch carrier as well but then again, LTE coverage with smart sucks specially in my location... Hoping that this will be fix soon..
I used to have a perfect LTE with globe 4G+ after some time after updating OS version it went nuts
Deleted
I updated my mi5 to miui 8 global and got 4g signal but only for a minute or less then it dissapeared and when i manually choose mobile networks i can only select Telenor 2g and 3g...really weird.
Thread Closed - Issue Fixed ---- JMC
Sent from my MI 5 using XDA-Developers mobile app
Same Globe Sim Issue
jamiepotter said:
Hello Fellow MI5 Users,
I am writing this thread to see if anyone else is having issues like me with my Mi5.
The problem is the intermittent signal issue with LTE, My problem started when I flashed 6.7.28 miui 8 update at first I thought that it was my Network Provider, but when I checked my dad's and sisters phones (same provider) their 4G signal is very stable without any issues at all.
So to describe my problem this is what's happening to my phone.
My phone is now running the latest Global beta miui8 6.8.12
When switching to LTE as prefer connection my phone signal goes crazy from NO SIGNAL - NO SERVICE - EMERGENCY ONLY - NO SIMCARD as I dig in to my settings i change my preferred connection to 3G Only which in my surprise works well and perfect without any issues but the problem here in my country(Philippines) you cannot rely on H or H+ at all since the network provider service sucks bigtime!
So far here's a list of what I did with my phone to fix it
- Flash back to China miui8 later version that I remembered that I don't have any issues with my LTE(Sucks because the issue was there also when I went back)
- Flash to MIUI 7 (Ohh well at this point I thought going back to miui7 will fix this issue but NO, not at all and I'm losing patience)
- Flash all KINDS of CM Based OS (Well switching OS might solve the issue, But believe me it got worst! after flashing all kinds of CM Based OS on my MI5 it all went down to Reboot forever bug (this happens when my phone boots and phone started to connect to LTE)
- Went back to Global beta miui 8 6.8.12 basedband version TH20c1.9-00038 up until now im still using this version.
----SHOUTOUT SA MGA KAPWA KO PINOY!
James Manaois Cruzat
Click to expand...
Click to collapse
Hello James,
I am having the exact same issue on my Globe Sim. I just bought mine last week. Whenever i turn on my mobile data, signal suddenly goes to no service, not detected, etc. Its very frustruating.
Is my unit defective? Or is it just a firmware issue?
jamiepotter said:
Thread Closed - Issue Fixed ---- JMC
Sent from my MI 5 using XDA-Developers mobile app
Click to expand...
Click to collapse
How to fix it?
jamiepotter said:
Thread Closed - Issue Fixed ---- JMC
Sent from my MI 5 using XDA-Developers mobile app
Click to expand...
Click to collapse
how to fix?
jamiepotter said:
Sucks right? I wanted to switch carrier as well but then again, LTE coverage with smart sucks specially in my location... Hoping that this will be fix soon..
I used to have a perfect LTE with globe 4G+ after some time after updating OS version it went nuts
Click to expand...
Click to collapse
I am using both Mi5 and Redmi Note 4x. In both phones, I experience frequent network connection drops for both SIM cards in serted on the phone (one is Sun, the other is Globe). Even while stationary, I exeperience the network drop where the signal bar for both SIMs suddenly simultaneously disappear. The network drop is worse when I am mobile. In addition, the network drop is causing the app I am using at the time to restart. PLEASE HELP.
hi.. is this thread still active? have you found the solution?
i am also from the Philippines, been using globe for 2 years in mi5 with no connection problems, then recently, when i try to connect to data, the signal goes on and off just like yours.. just this month, i updated from miui7 to miui9 and the problem got worst! when i connect to mobile data, phone reboots after a minute! i tried every fix i found in the internet (reset APN settings, factory reset, airplane mode) but nothing seems working.. So i tried Sun as my other network and it works perfectly fine.. Also, i tried to interchange sim 1 and 2 slot but still not fixed.. Another thing, when i turn the data in different place, my connection seems okay.. i live in cebu city but works in lapulapu.. the problem occurs in lapulapu..
help! is this network related or somethings wrong with the phone?
Good to see this thread. I thought my phone had a factory defect.
based on my experience.
version 9.1.1.0 and below only loses signal for globe while on data connection in some locations .
higher versions up to the latest(now is 9.5.5.0) causes our phone to totally reboot in some locations as well.
maybe it has to do with the signal/radio frequency on the area for the identified carrier(Globe).
this is easy.
root then disable LTE band 41
beastfren said:
this is easy.
root then disable LTE band 41
Click to expand...
Click to collapse
How do you disable band 41?
Thank you in advance.
easy way > install network signal guru > 3 dots (menu) > lock bands > lte > uncheck b41 tdd 2500.

Unstable signal strenght on non-miui roms

Hello, I want to buy this phone and flash rom like LineageOS or RR but I read that on non-miui roms signal is unstable and when you look at singal bars there is full signal and after few seconds almost no signal and after next a few seconds signal is full again. Do you see it on your phones?
No, people with this kind of problem don't use the recommended firmware..

4G doesn't stay, always return to H+

Hello everyone,
I just bought a Oneplus 3T and it's a really good phone, but i'm facing an issue : 4G only appears a few time (with almost full bars) but it's just coming back to H+ every time, i mean every time.
Usually i have 4G in that place, even with my old ****y Samsung Xcover 3 and its the same with another phone operator sim card.
What do you recommend for me ?
Thank you very much
Details :
French version
Up-to-date (Android 8.0.0)
Phone operator : Sosh (tried B&YOU)
Fix
*#*#4636#*#* use the diagnostic under phone information and move it to 4g/lte only
I've seen this solution but it's not a real one, no ?
If I put LTE Only, i will not have 3G/H/H+ and stuff if there is no 4G around me, right ?
Perhaps your ISP radio tower is far away, doesnt mean its phones fault
I had some issues with sim. I've to get new sim and 4g service reactivated
Well, as i said before, i was able to have 4G even with my old Xcover3 in that place, so it's not the network provider's fault.
4G is working on my Oneplus 3T, it's just that it's most of the time, like MOST, on H+ and not 4G even if I had 4G in thèses places before...
It looks like he phone auto balance between 4G & 3G as soon as 4G is a little bit weak (even weak, it's still beter than 3G anyway...) and I noticed that sometimes the data are just turned down (nothing DL, charge, but H+ still on status bar).
Im on Oreo stock OOS, do you know if there is any issues on this new version ?

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