Xiaomi Redmi 4x Sudden WiFi Issues - Xiaomi Redmi 4X Questions & Answers

Hello there!
I have a Xiaomi Redmi 4x device and a few days ago the WiFi started to act up.
I decided to take a look at the logs and this is what I've found:
pastebin.com/w6VXqCWA
I use HAVOC OS 3.0 Android 10 (Q)
The device seems to work in very close proximity of the router but as soon as I move, the connection drops.
(I tried to re-flash the stock ROM and other ROMs, but the problem won't go away)
Thanks in advance, have a great day!

My known someone gave me his 4x to troubleshoot same problem.
I also using same phone too.
At first I have exchanged all hardware between two devices to find its a hardware issue or not (noob)
After that I put back all module to respected phone.
I really don't know what happened... the wifi issues gone!! ?

himu_joy said:
I really don't know what happened... the wifi issues gone!!
Click to expand...
Click to collapse
Do you have any pictures, I wouldn't want to break my phone by messing up with the hardware when opening it up?

have you tried connecting to different wifi network?
while writing this comment latest havoc os build is 3.3 20200401, please try this build and see if you face this issue?
also see if other device connects to wifi correctly or not?
try turning off router for few seconds and start again and check if it works?

metelhammer said:
have you tried connecting to different wifi network?
while writing this comment latest havoc os build is 3.3 20200401, please try this build and see if you face this issue?
also see if other device connects to wifi correctly or not?
try turning off router for few seconds and start again and check if it works?
Click to expand...
Click to collapse
Hello thank you for your tips but I have tried complete wifi reboot, changing of wifi channel, connecting to a different network (same issue), others devices work fine; I tried multiple ROMs including stock firmware.
I'm starting to think the hardware is failing.

Marius_Sheppard said:
Hello thank you for your tips but I have tried complete wifi reboot, changing of wifi channel, connecting to a different network (same issue), others devices work fine; I tried multiple ROMs including stock firmware.
I'm starting to think the hardware is failing.
Click to expand...
Click to collapse
Oops! then it is a hardware issue.

Marius_Sheppard said:
Do you have any pictures, I wouldn't want to break my phone by messing up with the hardware when opening it up?
Click to expand...
Click to collapse
Currently I dont have any picture captured that time. But if you need, I can reopen my handset to share picture with you. you can also google to find motherboard picture of 4x.

I found a new perspective of the WiFi log but I don't quite make anything of it.
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Related

Problem with HSDPA signal (3G as well...)

I've tried to look for a solution in XDA but I haven't found any...
I'm using an italian ROM (T.I.R. 6.0) based on AT&T build.
I was using my phone without any problem, with full HSDPA signal everyday.
Today, after a call it stopped to get the HSDPA signal...
If I switch the 3G signal off from the CommManager it takes G signal and everything works well...
I don't really know what it can depend on...
I'm not the only one who is having this problem. Another italian guy with the original ROM has the same problem. So I think it depends on one software I've installed on my kaiser... but I don't really know why it started to have this problem now. I was only calling, and doing nothing more than this.
These are the software which are installed on my kaiser:
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Can it depend on KaiserTweak??? I was reading about people having some problems related with it, but I'm not sure...
I had this problem another time in the past, and I solved it by reflashing the ROM.
Hope someone can help me.
Ciao!
Make a little search on the forum about 3G signal problems, and you'll find things like this: http://forum.xda-developers.com/showthread.php?t=335074
Some Kaisers (apparently quite a few according to the number of people asking about it every week...) have defective hardware, and the radio will fail with just those symptoms at some random point. Only cure is to send the device back for repair. Mine went through that too. Firstly the device won't work on 3G anymore, only EDGE, then eventually the radio will fail completely and not find any network anymore.
Of course it's not the only reason for 3G problems, but a frequent one... so what you'd want to do to find out if it's your case is the following:
Try a hard reset, as you say you already solved the problem once it might be enough and would mean your hardware is OK, then if it's no help maybe try a different ROM, including radio version, if it still doesn't work you'll have no choice but sending your device back to service center.
And someone should make a sticky out of that too, it must be the 10th time I post it...
Thank u for ur answer. I swear, I had a look on the forum, but u can imagin between so many 3ds how difficult it can be to find something really interesting concerning this problem.
In the evening I'll have a look to the 3d u posted.
If there is someone who has some ideas on what is going on and has solved the problem without sending the ppc to HTC, please, help me!
Thanks again!

[Q] GAlaxy S wifi connects but no internet

I have searched he forums and found some people had similar problems on HTC Desire but did not help me on my SGS.
After upgrading to Darky's Rom 10.2 EE from stock Froyo, wifi connects but no internet connectivity, it connected a few times but after that stopped , fone shows that its connected to wifi but no data traffic at all I have tried using static IP but still no affect...kindly help as this is driving me nuts now..also I don't know if this is related to the problem but the wifi signal bar and network signal bar both have turned gray, I can swear they used to be green
come on guys , a bit of help plzzz
3 days and not a single reply, helpful or otherwise....am I posting in the wrong section perhaps ?
update: I have now flashed a new modem yet the issue remains full strength wifi connected but no internet connectivity
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wifi bars on top show excellent connection yet
try flashing stock roms if its still not working then send it for replacement
did a factory reset which is a PITA wifi working now
krazy_kh said:
did a factory reset which is a PITA wifi working now
Click to expand...
Click to collapse
ive had this problem on and off , and the PITA solution is always the end solution! just the way it goes in flash city!
And 2 days after Hard resetting my fone, the problem is back....was browsing through the Filkie Wallpapers HD app when it crashed and rebooted the fone, lo and behold, the wifi bars turned and stayed grey after the restart and did not turn green like they had been doing for the last 2-3 days...same issue once again, connected to router at full strength but no wifi ....help me people, I cant keep hard resetting my fone every 2 days, there must be some wifi config file or something that gets messed up ..I don't know , I'm not brainy enough help meeeeee
Another devices works on wifi ?
Try change security options on router to WPA or WEP...
Try restart your router...
review whether you have wifi modem allows connection yet?
Similar Problem
I have a Galaxy S GT-I9000 running Darky's ROM 10.2 EE also.
Whilst at home I can connect Wi-Fi to my home router and whilst using the internet the Notification Bar icon turns from Grey to Green as I use the internet.
On the train yesterday I connected to the free Wi-Fi, phone showed me as connected but the icons remained grey and I could not use the internet.
I have checked all my settings several times without finding the problem.
Truly annoying and I am NOT flashing again!
If I find Darky's ROM is the problem then I will change to another ROM or go back to Stock and stay well away from Darky's ROM.
I have similar problem here: http://forum.xda-developers.com/showthread.php?t=1846850
i will post solution there after i find it.
If anyone has a solution already, please share it.

[Q] Mobile network not available

Hello,
Since a few months I can't call anyone with my Lg Optimus 2x, I just get the message 'Mobile network not available'.
I have tried several sim cards.
Before I had this problem I reverted to stock ics using smartflash and I sent my o2x to a company to repair my screen (maybe they accidentally broke my antenna?) and maybe it had nothing to do with this? What I noticed is that the mobile network type is UNKNOWN:0 wich shouldn't be.
I'm using CM10 "Look Ma! No Hands!" Edition (by pengus77) with the kowalski kernel 125 (also by pengus77)
I'm on the ics bootloader (new bootloader)
I've tried other roms and the old bootloader but nothing works. I've also tried using other basebands. I also read that my efs may be deleted/corrupted/wring/not working and I don't know... If thats the problem, how do I fix that?
Screenshots, About phone -> Status (I know aeroplane modes is turned one but thats to save energy because I cant call anyone, ofcourse I turned this of while testing )
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I hope anyone can help me and if you need more info, just ask me.
I can see that you are receiving signal, so there should be no problem with your antenna.
Just search the thread for Erase cal data, that should help.
Sent from my LG-P990 using xda app-developers app
can you do (or recieve) calls when the phone is pluggend with a cable? in my case a nearly dead battery caused serious issues... I had the same message, but my battery-state and the network state freezed... a new battery solved all the problems in my case. maybe you should test calling while loading. cheers mate!
Jackson-five said:
can you do (or recieve) calls when the phone is pluggend with a cable? in my case a nearly dead battery caused serious issues... I had the same message, but my battery-state and the network state freezed... a new battery solved all the problems in my case. maybe you should test calling while loading. cheers mate!
Click to expand...
Click to collapse
No, I can't. I will try kekks solution when I have time. Nut thanks for the help

[Q] Huawei P7-L00 Cannot Find ANY WLAN Networks

My Huawei P7-L00 (from China) cannot detect any wifi as seen in the image below. I have tried to fix it by changing the ROM from EMUI 3.0 to 2.3 and factory restoring it, without luck. I can also confirm it is not related to problems with my router as all my other devices can detect the network, and my P7 cannot detect WiFi anywhere I've brought it.
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This is how it happened. I bought this phone on my trip to China and when I arrived at the airport, the WiFi was still working fine. The first day home, I could detect the network, but I didn't try connecting yet. The second day, it failed to find any WiFi network, as if the network card broke overnight?
Could someone advise me if this is a hardware issue or a software issue? Maybe something to do with country codes if anyone has experience.
Thanks!
BadgerDev said:
My Huawei P7-L00 (from China) cannot detect any wifi as seen in the image below. I have tried to fix it by changing the ROM from EMUI 3.0 to 2.3 and factory restoring it, without luck. I can also confirm it is not related to problems with my router as all my other devices can detect the network, and my P7 cannot detect WiFi anywhere I've brought it.
http://i.imgur.com/WocfnW9.jpg[/
This is how it happened. I bought this phone on my trip to China and when I arrived at the airport, the WiFi was still working fine. The first day home, I could detect the network, but I didn't try connecting yet. The second day, it failed to find any WiFi network, as if the network card broke overnight?
Could someone advise me if this is a hardware issue or a software issue? Maybe something to do with country codes if anyone has experience.
Thanks![/QUOTE]
Do restore or 3BTN
Click to expand...
Click to collapse
Simona Simmy said:
Do restore or 3BTN
Click to expand...
Click to collapse
What's 3BTN?
BadgerDev said:
What's 3BTN?
Click to expand...
Click to collapse
Nevermind 3-button lol. I already tried that. I also just rooted this phone and tried using http://www.xda-developers.com/change-your-wifi-country-code-to-access-wifi-networks-on-all-channels/ to change the wifi code but that does not work either.
Did you check engineering mode (*#*#2846579159#*#*). There should be a test for WiFi?
ibeqa said:
Did you check engineering mode (*#*#2846579159#*#*). There should be a test for WiFi?
Click to expand...
Click to collapse
Thanks, I found the WiFi test under: ProjectMenuAct -> Aging related Test -> WIFI aging Test
However, when I tap the button for it, nothing happens. Does this mean that something is wrong?
BadgerDev said:
What's 3BTN?
Click to expand...
Click to collapse
When you put your FULL official ROM on SD card in dload
turn phone off and.then hold all 3 buttons same time and wait..
This is best solution if you want 100% wipe your phone..
Remember you need official recovery for this..
Thanks Simona, but does anyone know what is supposed to happen when you press the "WIFI aging Test button" (ProjectMenuAct -> Aging related Test -> WIFI aging Test)? Mine just does nothing.
Anyone else have anything I could try?
It is a hardware problem, take the phone to a service center.
Probably it's broken WI-FI receiver (antens).
Warranty

Xiaomi mi 9 screen replacement, Wifi and bluetooth not working after that

Hello guys, i hope you can help me with my problem.
i had an accident and my screen of the mi9 got broken, after i replaced it i checked my settings and could not enabled Wifi or BT, it just freeze the site for 10-15 sec and after that its still disabled.
i opened it after that again checked all the cables and other connections but still no luck. Is it possible that the modules got broken? Can i replace them somehow?
Thx
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probabily the ribbon for the wifi and bt antenna isn't connected.
you cant enable it via shortcuts in quick toggle or in settings or you cant find anything related to wifi or bluetooth?!
if you cant enable it via toggle maybe you need to factory reset the phone (i dont think is needed but is better to do that to despite major issues). if after factory reset the same issue presist then you can check the inside the phone and see if the ribbon is contected but, i doubt is that the problem tho.
sun_is_shinning said:
you cant enable it via shortcuts in quick toggle or in settings or you cant find anything related to wifi or bluetooth?!
if you cant enable it via toggle maybe you need to factory reset the phone (i dont think is needed but is better to do that to despite major issues). if after factory reset the same issue presist then you can check the inside the phone and see if the ribbon is contected but, i doubt is that the problem tho.
Click to expand...
Click to collapse
if i try to toogle on it just disable it after 10 sec.
reseted the phone same problem, its like it cant find the module to enable it
i unplugged that both cables, one by one and still could not find out which one is for Wifi/BT
Ice2090 said:
if i try to toogle on it just disable it after 10 sec.
reseted the phone same problem, its like it cant find the module to enable it
i unplugged that both cables, one by one and still could not find out which one is for Wifi/BT
Click to expand...
Click to collapse
so, if the toggle turns off by itself most common issue is the software, so...try use MiFlash Tool and flash latest build for your phone...and after that make a factory reset again. that should fix it...
there is a service menu *#*#64663#*#* for the mi9 where you can test the WiFi and Bluetooth hardware and see if they are seen by the phone and working. If they work is a os problem if they don't is hardware
he is failing while Opening Bluetooth device or Wifi device, can wait hours and nothing happens
So it sounds like a hardware problem...you can try a reset as it was mention be other users but if that not works then is definitely hardware

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