Develop Bugs

[Q] Problems with Mobile internet

I am facing a very peculiar issue that makes my mobile internet dysfunctional. Whenever I switch from 2G/3G to WiFi and then switch back to 2G/3G from WiFi, the internet refuses to work unless I restart my phone. Once, the phone is restarted, it works like a charm again till the time I switch to WiFi again. Sometimes though, 2G/3G would not work even if I do not switch to WiFi. Also, rarely, it still may work even as I switch back from WiFi to 2G/3G. This issue has plagued me since a long time and is sometimes accompanied by call drops.
I took my phone to a Samsung Service centre but it wasn't of any use. They do nothing except reflashing the stock rom. It did fix the problem for a while but in an hour or in a day(or in some random time duration) the problem resurfaced. I took my phone to the service centre, just to get this problem fixed. I have tried switching between different modes in settings: GSM/WCDMA/auto etc
I also tried contacting my mobile carrier and got my sim card changed. Therefore, the mobile carrier is not at fault (Internet works flawlessly after I restart, remember?). How do I fix this? It is really irritating to restart the phone every time I need to use the internet. Please help! :-/

Maybe try flashing a different modem. I had various data and call issues on my i9300. After flashing 10 or so different modems I found one from aveuropean carrier worked best. Im in the uk btw
Sent from my GT-N7105 using xda app-developers app

Thanks for replying thedadio!
But I've never flashed a modem before and have no clue which one to choose. Is it same as flashing a custom rom? Also, can I brick my device while flashing modems?

Yes its similar to flashing custom ROM. What ROM are you on and what modem are you on?

McLaren__F1, I am on stock 4.1.2. Also, I just tried flashing DDALJ1 modem (As I'm from India) and Perseus kernel. None of these steps helped me in any way. Still the same issues. :-/

Which is your network provider? I had the similar problems when I was on docomo..nw ported to airtel nd problem solved.
Btw did you try some other np's sim?
Sent from my GT-N7100 using xda premium

I am currently using Airtel (Prepaid). I haven't tried using any other np's sim though..

I have the exact same problem. I am with optus Australia. I tried different modems, different ROMs but all have the same problem. I have sent mine away to be replaced and am still waiting for the new one. Very frustrating problem.
Sent from my Nexus 7 using Tapatalk HD

I'm not sure if they'll replace mine. It has been almost 6 months since I bought it..
How do I solve this? Any clue anyone? :|

My Note2 does this sometimes & only fix is a restart.

try soft format may its helpful

Not a fix, but toggling airplane mode on and off does the job for me.
Interestingly this happens to me only when leaving one particular WiFi access point.

Randomwalker said:
Not a fix, but toggling airplane mode on and off does the job for me.
Interestingly this happens to me only when leaving one particular WiFi access point.
Click to expand...
Click to collapse
i got exatly same proplem, 3g not working after leaving wifi of my workplace, but when im home i have no proplems if i decide leave my home network.
could it be related to radio type wifi has?? my workplace still using old hardware with radiotype of .g and leaving that network "kills" mobile network and i need to reboot phone, but my home network is .n and im not having proplems after leaving it. if its related to wifis radiotype it should be easy for someone to write script which reboot mobile network after leaving those wifi networks.

Not a fix, but toggling airplane mode on and off does the job for me.
Interestingly this happens to me only when leaving one particular WiFi access point.
Click to expand...
Click to collapse
Doesn't work for me. This problem is strange. :-/

No one has a solution for this problem on XDA?

Did you use the NFC to scan anything by any chance? I don't know if it could be related but my phone started to have issues around the same time I bought some NFC tags and started programming and scanning them.
I still haven't got my replacement phone back yet. But I'll let you know if it still has issues in my problem spots. Than we'll know if the problem was with the phone or just this model.
Sent from my Nexus 7 using Tapatalk HD

essense said:
Did you use the NFC to scan anything by any chance? I don't know if it could be related but my phone started to have issues around the same time I bought some NFC tags and started programming and scanning them.
I still haven't got my replacement phone back yet. But I'll let you know if it still has issues in my problem spots. Than we'll know if the problem was with the phone or just this model.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Nope! I haven't used NFC at all.
Ohh, okay..Eagerly waiting for your response! *Fingers crossed*

Tested replacement phone today and the problem seems to be gone. The signal was actually stronger than all my previous phones.
This issue could be a hardware problem as from what I have searched on the net it seams to affect only a few people. I just hope if I root the phone the problems don't come back.
Maybe you could try send it away for repair if they won't replace it.
Sent from my GT-N7105 using Tapatalk 2

Looks like I spoke too soon. The issues are still there. While waiting for my replacement phone I was using an old HTC wildfire and had no issues with the data connection so it must be an issue with this model.

[Q] WCDMA Mobile data issue.

Hey everbody. this is my first post on here. and I have a really annoying issue.
OK, i bought an unbranded Galaxy Note II N7100 4.1.2 jelly bean couple of months ago and that issue seemed to be there since the beginning.
It's that when I'm connected to internet through mobile data on WCDMA, all of a sudden the "received" signal (orange arrow) won't flash any more while green arrow flashes every two seconds and i have no internet access no matter what i do, the only thing that can temporarily fix this is that i restart my phone and then the internet is perfect again for a not certain interval of time and then the issue happens again, it won't come back until i restart the phone again.
Sometimes it could stay for 12 hours before it happens and sometimes i could keep restarting my phone every five minutes, it's really annoying.
I've tried all the known tricks like hard reset, deleting all apps, i disabled so many services or apps that may cause this problem, I disabled all syncing apps, i deleted, re installed APNs, i changed my SIM card and finally i subscribed for another network provider and it still happens
I'm really at a loss, I don't know what causes this problem.
Is it a hardware issue? but if it was a hardware issue, it wouldn't work at all even after restart, right? is it some bug in the built-in 4.1.2 jellybean?
And i also may say that i receive calls normally, the WIFI works perfectly and the GSM mobile data works all the time no problems, it only happens on the WCDMA ONLY or the AUTOMODE.
The H , H+ or 3G sign is up there but the orange arrow all of a sudden won't flash and no internet access at all untill i restart the phone.and this issue may start to happen even if the mobile data is off all day and when i turn it on BOOM the issue seems to be there even before turning it on.
I hope you guys can help me with this...thanks

dukemtareq said:
Hey everbody. this is my first post on here. and I have a really annoying issue.
OK, i bought an unbranded Galaxy Note II N7100 4.1.2 jelly bean couple of months ago and that issue seemed to be there since the beginning.
It's that when I'm connected to internet through mobile data on WCDMA, all of a sudden the "received" signal (orange arrow) won't flash any more while green arrow flashes every two seconds and i have no internet access no matter what i do, the only thing that can temporarily fix this is that i restart my phone and then the internet is perfect again for a not certain interval of time and then the issue happens again, it won't come back until i restart the phone again.
Sometimes it could stay for 12 hours before it happens and sometimes i could keep restarting my phone every five minutes, it's really annoying.
I've tried all the known tricks like hard reset, deleting all apps, i disabled so many services or apps that may cause this problem, I disabled all syncing apps, i deleted, re installed APNs, i changed my SIM card and finally i subscribed for another network provider and it still happens
I'm really at a loss, I don't know what causes this problem.
Is it a hardware issue? but if it was a hardware issue, it wouldn't work at all even after restart, right? is it some bug in the built-in 4.1.2 jellybean?
And i also may say that i receive calls normally, the WIFI works perfectly and the GSM mobile data works all the time no problems, it only happens on the WCDMA ONLY or the AUTOMODE.
The H , H+ or 3G sign is up there but the orange arrow all of a sudden won't flash and no internet access at all untill i restart the phone.and this issue may start to happen even if the mobile data is off all day and when i turn it on BOOM the issue seems to be there even before turning it on.
I hope you guys can help me with this...thanks
Click to expand...
Click to collapse
Tried flashing a custom rom?
Sent from my GT-N7100 using Tapatalk

Nope
OverDub said:
Tried flashing a custom rom?
Sent from my GT-N7100 using Tapatalk
Click to expand...
Click to collapse
Not really, im a noob when it comes to hacking my phone and afraid to brick it ...I still need to read and research about it..or maybe someone can help me. But till now id be happy with the 4.1.2 without this issue.

dukemtareq said:
Not really, im a noob when it comes to hacking my phone and afraid to brick it ...I still need to read and research about it..or maybe someone can help me. But till now id be happy with the 4.1.2 without this issue.
Click to expand...
Click to collapse
Flashing a custom ROM is really easy, and there is no way u can brick your phone if you do the steps correctly.
Sent from my GT-N7100 using Tapatalk

[Q] Major WiFi issue out of nowhere?

Hey all. I need some advice. This morning my G3 (D850) dropped WiFi connection for no reason. It says the signal is good but the network info says saved, secured. It will attempt to connect over and over again and if it does connect the signal is weak as can be and it drops the connection within 2 seconds. My coworker has a G3 also and is connected to the same work network I am. His connection says excellent where as mine said good. His device connects just fine with full bars. I'm baffled. I've already tried manually selecting 2.4 Ghz and 5 Ghz instead of auto select and that didn't help at all. I've tried manually turning off WiFi and turning it back on. I've tried turning airplane mode on and then off to refresh the connection and that didn't help. I've done a battery pull as someone in one of the android authority forums suggested that (apparently I am not the only one having this issue.), didn't work. I've unchecked WiFi optimization - no dice. There was another post on a different forum here on XDA that said turning off WiFi and then deleting the WiFi config folder located in data/etc/wifi and then rebooting fixed the issue for them so I tried that. After reboot when I tried to turn on WiFi my G3 rebooted itself. Does it everytime. SO, I had to restore to a nandroid backup (btw I'm on rooted stock 10f) to get the phone to stop hating my WiFi toggle attempts. Last ditch effort I did a factory reset hoping for an easy fix... Nope. I don't know what else to try. It was fine yesterday all day. This morning it was perfectly fine and then randomly started having this issue. I haven't altered any system files whatsoever. I really don't want to send my device to LG for warranty replacement so I'm hoping someone can help me out that may have had this issue and resolved it. The only difference between my device and my coworkers device is he is still on 10d and I am on 10f. That could be the issue I guess but that doesn't really explain why my device has been perfectly fine until this morning and I've been on rooted 10f for weeks. I am planning on flashing back to straight bone factory stock 10d when I get home here in a few hours from work but Idk if that will help or not. Judging from the amount of google search results of "LG G3 WiFi connection problems" this seems to be an issue for several people. I won't know if it's on the software side or hardware side until I get home but in the meantime has anyone had these issues at all? People have had success in changing to Static IP but I would have to do that for every connection I attempt to connect to and that's a pain in the a$$. Also, that does nothing to identify the root cause of the issue. Any help would be greatly appreciated. =)

BreakingVZW said:
to much words
Click to expand...
Click to collapse
try deleting /data/misc/wifi then reboot, it that doesn't work try an other kernel(rin kernel is good)

suljo94 said:
try deleting /data/misc/wifi then reboot, it that doesn't work try an other kernel(rin kernel is good)
Click to expand...
Click to collapse
Thanks for the reply. So it turned out my phone just randomly decided it doesn't like my work network anymore. Idk why lol. I got home and it hooked right into WiFi. Gf's WiFi and open networks as well. I call shenanigans. I went ahead and flashed back to 10d anyway though.

BreakingVZW said:
Thanks for the reply. So it turned out my phone just randomly decided it doesn't like my work network anymore. Idk why lol. I got home and it hooked right into WiFi. Gf's WiFi and open networks as well. I call shenanigans. I went ahead and flashed back to 10d anyway though.
Click to expand...
Click to collapse
I am having the same issue! But it is happening in other networks too...sometimes I get the phone to connect but it only works for a while and when I check the networks it only says Saved, even if I try to connect again

Having the same issue, whether at work or home, my wifi has become near useless. I've even gone as far as trying a different ROM. Didn't work.

Same thing here

I also have tried factory reset, installed a new ROM, changed settings in my router... but the problem remains I don't know what to do anymore, I use wifi a lot!! I searched through other topics but no one seem to know how to solve it. Unfortunately my warranty already expired, I took my phone to some technicians but honestly it didn't help at all...they all said it was a software bug and I should wait for an update but if it was just that a new ROM would fix it,right?
I am not very familiar with phone hardware but I assume that if it was a hardware problem I wouldn't be able to turn it on or connect to any network, right?? (any experts here???)
Any solution is welcomed.

anyone please?? :crying:
P.S : I tried a new baseband, new kernel and new ROMs. So far, nothing changed.
I can connect sometimes but get kicked out within minutes. At other times I only get the saved,secured message.
This is happening in every network

Mobile signal problem

Hello guys, my phone fails to connect to the Internet under a specific circumstance even though it receives 5-bar HSPA signal. This problem is a bit tricky to reproduce. First, I'd like to say that it's a 4G plan and my phone IS ABLE to receive 4G signal and has connection to the Internet wheb no problem occurs. When I go to some places that my phone receives 2-bar signal only (e.g. in Elevator, tunnel, etc.), it'll drop to HSPA with 2 or 3-bar signal. It seems normal, right? But then I go to somewhere that's supposed to have 5-bar signal or even has a clear blue sky above, my phone receives 5-bar HSPA signal with NO connection at all! Here I say No connection instead of no Internet connection is that it can't even receive or make any call when the problem occurs. The phone will obtain 4G signal again only after turning off and on mobile network or Airplane mode. Otherwise, it just sticks to this status forever. Or if I wait for an enough time, which varies from a few minutes to half an hour, it'll eventually have an X on the signal bar and reset the connection to work again. This problem's already driven me crazy! May someone help me please:crying:
I have an S-off unlocked HTC_622 HK version device (was changed to superCID recently). It went through every version of firmware from 1.80.708.X to 2.28.401.9 and both HK stock ROM and LeeDroid ROM.
Edit: It also happens sometimes when it connects to 4G.

I have used an unlocked HTC 10 with T-Mobile service and haven't had this issue, but I had similar issue when on WiFi.

Carrier & country ??
Sent from quite brutal hTc 10 ..

jauhien said:
Carrier & country ??
Sent from quite brutal hTc 10 ..
Click to expand...
Click to collapse
Carrier: SmarTone HK
Country: Hong Kong
I also noticed there is no Internet connection when it's on LTE band 8

Did you drop it ..?
Sent from quite brutal hTc 10 ..

jauhien said:
Did you drop it ..?
Sent from quite brutal hTc 10 ..
Click to expand...
Click to collapse
No, never dropped it. It's been like this for a long time. I thought that was because of faulty SIM card at first, but it turns out the SIM card has nothing to do with the problem.

Send it to service then. It may could be a hardware issue

if you reset everything back to original does it still have the same issues? If so then probably a rma request is needed

Prinz069 said:
Send it to service then. It may could be a hardware issue
Click to expand...
Click to collapse
I consider doing it all the time since it's happened. Last time I called for a RMA because of touchscreen unresponsiveness along with signal issue. They just replaced the screen and did nothing with this issue. What concerns me most is the phone looks and behaves like 120% "normal" as long as it doesn't undergo the "specific circumstance" I mentioned. Looks like I need to state very very clearly about the problem this time.
Wonders_Never_Cease said:
if you reset everything back to original does it still have the same issues? If so then probably a rma request is needed
Click to expand...
Click to collapse
At some point, I'd been using stock HK ROM and kernel for a week or two with root only. It still had the same issue.

Hi
I have quite the same issue as you with my phone except it is with 4G. I explain, some time I can have a full 4G strengh (4 bar signal) and still cannot access internet, or send SMS. It seems that my phone can send data but not receive because I'm able to make a call, but not receive one. Also people receive several time my SMS : they still appears as sending in my app and I believe their are sent but my phone seems it doesn't receive any confirmation, so it still try to send it.
If I go back to 2G/3G mode in network, everything works fine. This would be easy if 4G never works, but sometime it does so this looks like a random behavior.
I think this is a 4G band issue. I found an app called LTE Discovery that display information about your network. My phone works correctly when I'm connected to band 3 and 20 (can see the exact frequency in the app). My carrier (SFR, in France) uses also band 7 and 28, but I still need to confirm those bands work or not (seems band 7 works but not sure, this might be specific frequencies of this band that fail).
And when my phone does not work, the app fail to display the exact frequency I'm using.
I have an unlocked boot loader, Venom rom 4.2 (Android 7) and an old firmware (1.80.xxx). Issue started to shwo when I was using Marshmallow, and a full wipe and rom reinstallation didn't fix it.
Does it looks like your issue?

Kwiskas said:
Hi
I have quite the same issue as you with my phone except it is with 4G. I explain, some time I can have a full 4G strengh (4 bar signal) and still cannot access internet, or send SMS. It seems that my phone can send data but not receive because I'm able to make a call, but not receive one. Also people receive several time my SMS : they still appears as sending in my app and I believe their are sent but my phone seems it doesn't receive any confirmation, so it still try to send it.
If I go back to 2G/3G mode in network, everything works fine. This would be easy if 4G never works, but sometime it does so this looks like a random behavior.
I think this is a 4G band issue. I found an app called LTE Discovery that display information about your network. My phone works correctly when I'm connected to band 3 and 20 (can see the exact frequency in the app). My carrier (SFR, in France) uses also band 7 and 28, but I still need to confirm those bands work or not (seems band 7 works but not sure, this might be specific frequencies of this band that fail).
And when my phone does not work, the app fail to display the exact frequency I'm using.
I have an unlocked boot loader, Venom rom 4.2 (Android 7) and an old firmware (1.80.xxx). Issue started to shwo when I was using Marshmallow, and a full wipe and rom reinstallation didn't fix it.
Does it looks like your issue?
Click to expand...
Click to collapse
It really looks like for the part of 4G connection. AFAIK LTE doesn't handle phone call and SMS? Have you tried to test with other SIM cards and phones?
I also use LTE Discovery to test my phone. My carrier uses LTE band 3, 7, 8. My phone does receive signal of all these bands and works fine with band 3, 7 even with 1-bar signal. But for band 8, nothing about Internet works normally except for phone calling.
Seems my last resort will be switching my phone with my friend's (also HTC 10) to test with this problem.

Hi,
It seems I managed to solve my issue. For the moment I have working LTE at home, will try at works tommorow.
I simply update my firmware to 1.95.401 (was on 1.80.xxx) and it seems to works so far.
Maybe reflashing your firmware (if it is possible) could correct the issue?

Kwiskas said:
Hi
I have quite the same issue as you with my phone except it is with 4G. I explain, some time I can have a full 4G strengh (4 bar signal) and still cannot access internet, or send SMS. It seems that my phone can send data but not receive because I'm able to make a call, but not receive one. Also people receive several time my SMS : they still appears as sending in my app and I believe their are sent but my phone seems it doesn't receive any confirmation, so it still try to send it.
If I go back to 2G/3G mode in network, everything works fine. This would be easy if 4G never works, but sometime it does so this looks like a random behavior.
I think this is a 4G band issue. I found an app called LTE Discovery that display information about your network. My phone works correctly when I'm connected to band 3 and 20 (can see the exact frequency in the app). My carrier (SFR, in France) uses also band 7 and 28, but I still need to confirm those bands work or not (seems band 7 works but not sure, this might be specific frequencies of this band that fail).
And when my phone does not work, the app fail to display the exact frequency I'm using.
I have an unlocked boot loader, Venom rom 4.2 (Android 7) and an old firmware (1.80.xxx). Issue started to shwo when I was using Marshmallow, and a full wipe and rom reinstallation didn't fix it.
Does it looks like your issue?
Click to expand...
Click to collapse
I think you'll be "pleased" to know you're not alone:
I have the exact same issue, SFR , HTC 10, Venon rom 4.2.
I had a couple of exchanges with carrier support, always the same answer: our antenna is under repair...
The only way out on my side is to stay in 3G most of the time and then I can receive SMS, otherwise, no 4g in specific places, and very late SMS reception (I can receive SMS from 2 days prior... This happen when on 4g).
By the way, SFR made me get a 10€ discount every month when I told them I would leave, you can ask for it too.
---------- Post added at 02:31 PM ---------- Previous post was at 02:17 PM ----------
Kwiskas said:
Hi,
It seems I managed to solve my issue. For the moment I have working LTE at home, will try at works tommorow.
I simply update my firmware to 1.95.401 (was on 1.80.xxx) and it seems to works so far.
Maybe reflashing your firmware (if it is possible) could correct the issue?
Click to expand...
Click to collapse
I've been on 2.28.401.xxx since a couple of weeks, I've got the issue, so maybe it's more related to a clean install?
I'll switch to 2.38.617.xxx and see where it goes

Does it appears your phone have a good connectivity when you are in 4G? I mean, my phone used to display all network bar and LTE logo but nothing seems to works.
Also, you can keep in mind that is the 4G only fail in some area, this is probably a software issue, not hardware. I also saw there was antenna repair in my area, but I was the only one to get issue. Can you compare with your mates if they also have network issue (same carrier, try to switch SIM) ?
What is your CID? Mine is HTC_034 and I couldn't install 2.xx firmware.
For me, the issue just happened, with no explaination. I didn't update firmware or install any new ROM. So yes install the new one might correct the issue for you too, if the symptoms are the same.

Kwiskas said:
Does it appears your phone have a good connectivity when you are in 4G? I mean, my phone used to display all network bar and LTE logo but nothing seems to works.
.
Click to expand...
Click to collapse
COnnectivity was at the max, and no traffic at all, no up or download, and no ping. That's what puzzled me.
.
Also, you can keep in mind that is the 4G only fail in some area, this is probably a software issue, not hardware. I also saw there was antenna repair in my area, but I was the only one to get issue. Can you compare with your mates if they also have network issue (same carrier, try to switch SIM) ?.
Click to expand...
Click to collapse
That's something I've planned to do. A bit complicated thought, I listen to music when I commute and these loss of 4g connectivity happens in places I would not stop normally...
That's one of the places I've identified, maybe you'd know this place (I doubt but how knows...)
https://www.google.fr/maps/place/48...!4m5!3m4!1s0x0:0x0!8m2!3d48.817837!4d2.249069
.
What is your CID? Mine is HTC_034 and I couldn't install 2.xx firmware.
For me, the issue just happened, with no explaination. I didn't update firmware or install any new ROM. So yes install the new one might correct the issue for you too, if the symptoms are the same.
Click to expand...
Click to collapse
.[/QUOTE]
My CID is HTC__001 wwe, I didn't buy it from SFR, I don't remember if I tricked the CID or not. (well think so)
I have the exact same symptoms as you

COnnectivity was at the max, and no traffic at all, no up or download, and no ping. That's what puzzled me.
Click to expand...
Click to collapse
Not sure of this, I checked using the network monitor in the notification bar. Up arrow were appearing but not down arrow so I assume my phone could upload but not download.
Didn't check out you place specifically, but this 2 ones for sure did not works :
https://goo.gl/maps/HHqaM8bnbR22
https://goo.gl/maps/tewhj1kw6gs
My CID is HTC__001 wwe, I didn't buy it from SFR, I don't remember if I tricked the CID or not. (well think so)
Click to expand...
Click to collapse
Didn't buy it from SFR either, but changing CID require to be S-OFF so I assume you have the orginal one. Don't understand why there is several CID with different firmware update, for WW/US version I can but for 2 phone both buy in France, not from the carrier...
Anyway, I thought this could be linked to a specific CID and matching firmware but it doesn't obviously.

I'll try the Brancion spot later today.
Something else I was thinking about, I wonder if baseband got updated , by now I have [email protected]_41.13_F.
Something I always asked myself in fact, does Radio gets updates in Viper or any other Rom do, and if no, how to.
I guess via RUU, but for now, I can't make it to work, I have to sort out how I did before

If I'm correct radio is contained in the firmware image, and will be updated with it.
You also can flash radio if you are S-OFF.
ROM won't update neither firmware or radio.
FYI I have [email protected]_59.06_F, which seems to be more recent than yours, this may be the source of the issue (no idea what version I had previously).
I used this tools to update firmware, as I am S-ON :
https://forum.xda-developers.com/htc-10/how-to/tool-firmware-updater-t3441029

Kwiskas said:
If I'm correct radio is contained in the firmware image, and will be updated with it.
You also can flash radio if you are S-OFF.
ROM won't update neither firmware or radio.
FYI I have [email protected]_59.06_F, which seems to be more recent than yours, this may be the source of the issue (no idea what version I had previously).
I used this tools to update firmware, as I am S-ON :
https://forum.xda-developers.com/htc-10/how-to/tool-firmware-updater-t3441029
Click to expand...
Click to collapse
Thanks for the link, really cool tool!
I now have the radio latest version, I'll do the "Brancion" test tonight and report.

Kwiskas said:
If I'm correct radio is contained in the firmware image, and will be updated with it.
You also can flash radio if you are S-OFF.
ROM won't update neither firmware or radio.
FYI I have [email protected]_59.06_F, which seems to be more recent than yours, this may be the source of the issue (no idea what version I had previously).
I used this tools to update firmware, as I am S-ON :
https://forum.xda-developers.com/htc-10/how-to/tool-firmware-updater-t3441029
Click to expand...
Click to collapse
I've did the tests with the new radio, the phone now switches to HSDPA or 3g depending on network condition, so it sort of fixed the issue of being stuck in 4g without actual data transfert ability

Question Problems with mobile data - Stop working but looks good

Hi,
I own a Xiaomi 11 Lite 5G NE. I have updated to the latest MIUI Official V12.5.8.0.RKOEUXM.
From the beginning, I'm facing the issue that mobile data is not working. You're navigating and suddenly all stop and finally it shows the error no network.
After restarting is working fine again but it's very annoying. I've been looking for help but nothing found has helped.
Is anyone else facing this issue?
Thanks for your help and time!

Post seen by 26 people so far and no answers.
I suppose then mobile data is working fine for all of you... Mmm... My bad, it looks I will need to use the guarantee...

My mobile data works fine, but i noticed that phone sometimes drops WIFI connection.

raulci said:
Post seen by 26 people so far and no answers.
I suppose then mobile data is working fine for all of you... Mmm... My bad, it looks I will need to use the guarantee...
Click to expand...
Click to collapse
Hey. There
For some Days I also having mobile data problems. My phone så browser says No internet connection..
When i turn phone off or disable mobile data off for 30 min IT Works for a short period, then IT stopps again. I can use Wi-Fi at home.
I have factory restored my Device but its didnt helped. Swiched to second sim slot and nothing..
Gould be cool od someone knew how to fix it. Or need to send it in. Had this phone 3 months .
Specs..
Xiaomi 11 Lite 5G NE
MIUI 12.5.7.0 stable
Model 2109119DG

Same problem here. I'll preface this by saying that I work in a place where the reception isn't great, but with my old Huwaei it never happened.
When I lock the smartphone and then unlock it after a while it shows 4G+ but in reality there is no connection.
Last night at the gym (in a basement where the reception is zero) after I left it wouldn't pick up the network again.
To solve it I have to put on and take off the airplane mode.... Very very frustrating.
I also replaced the sim card with a new one but no dice.
MIUI 13.0.5.0 Stable

Thanks all for the replies.
So I'm not alone, but it looks that some people have not issues.
Looks also problem is on MIUI 12.5 and also on MIUI 13.
I think it is a hardware problem, not software.

In these days Ill take it in assistance and I will update you.
Unfortunately, it has been too many days since my purchase and I can no longer return it. Super regretful that I didn't get a samsung a52s!

Need to that we had igły weather here with lightnings and storm . Many trees was Tilted.
But checked mobile operatora site and nothing there.

ddanielee said:
In these days Ill take it in assistance and I will update you.
Unfortunately, it has been too many days since my purchase and I can no longer return it. Super regretful that I didn't get a samsung a52s!
Click to expand...
Click to collapse
Thanks, let us know what they say.

Hey again.
I have talked with my phone carrier..
Tv'et said that there ser problems with the antennas or something and in some Days they will fix it . They said i need to chance from LTE to 3G till its fixed..
They should have write something on their homepage. Will have helped , so I didnt had to factory reset.
That's All for now.. Have nice weekend you All.
Hope you will have yours problem fixet.
Bye

I also had major issues with my mobile network on 1 of the simcards. (I am using dual sim)
If your provider supports 5g then call with the dialer *#*#4636#*#*
you will see a menu with 3 options. the first selection is simcard 1 the second simcard 2.
change the prefered network type to NR / LTE / GSM /WCDMA or whaterver ur provider is supporting, NR = 5G network.
Make sure you disable VoLTE for both the sim cards since this was disabling my download from mobile networks.

hi guys, yesterday I took my cell phone out of repair. They replaced the motherboard and now it seems to be working fine, no signal loss.

ddanielee said:
hi guys, yesterday I took my cell phone out of repair. They replaced the motherboard and now it seems to be working fine, no signal loss.
Click to expand...
Click to collapse
Hi @ddanielee , that's a great news!
Is it still working since then? All fine?
Did they say something if this is a common issue?
Thanks for your comments and feedback!

raulci said:
Hi @ddanielee , that's a great news!
Is it still working since then? All fine?
Did they say something if this is a common issue?
Thanks for your comments and feedback!
Click to expand...
Click to collapse
Hi Raulci, i replied u in the other thread!

Just wanted to let you know that during the last weeks, I haven't experienced any other mobile data issue again. I have changed anything. Let's see if it continues this way.

Yes its a problem. Initially i thought its miui 13 problem. But reading above comments with slow speed/ 4g connectivity issues in 12.5 it seems its hardware related. Inferior modem or low quality antennas could be the case. I was hoping to fix by reverting to 12.5.

Same problem i have mi 11 x i even go to the service centre they factory restart my device and it's not fixed they said it must bu hardware problem

imJuned said:
Same problem i have mi 11 x i even go to the service centre they factory restart my device and it's not fixed they said it must be hardware problem
Click to expand...
Click to collapse