Wifi wont turn on? - Xiaomi Mi 4i

Hey guys so recently I downloaded and flashed the Sensei Kernal for my Mi4i. Everything seemed to work great, except when i turn my wifi on, it just turns itself back off, doesn't even try to connect. Am i doing something wrong?

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Frustrating Wifi problems

It seems like wifi on my phone just won't cooperate with me.
The problem's never the same but the general concept is the same. Either my wifi doesn't turn on, or it'll turn itself off after some time. Sometimes I turn on wifi in comm manager and I'll get the loading thing, but then it doesn't turn on.
Other times, it'll turn on only to be instantly turned off again.
Other times it'll turn on. I'll start surfing the web (or doing nothing for that matter) and it'll be turned off again!
Sometimes it'll turn on, work fine, and then I'd lock my phone and turn off the screen for a while. Afterwards, I turn on my phone again and it's turned off again. It was on before I turned off the screen (and it should stay on.. it did when I first got my phone).
I recently hard reset and flashed to Energy Rom, Mercury. The problem persists. I guess this means it's a hardware issue right? I've checked many settings (including all of the settings in advanced config) and it seems like wifi isn't acting as it should..
Anyone have any ideas?
hard reset, flash new radio/rom
paperWastage said:
hard reset, flash new radio/rom
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thats not going to work he said that he just flashed the newest mercury rom and that means he has probably got a good radio too . unless its just the radio .
other than that i don't know what to tell you about wifi other than i don';t use it much .
the rom works fine and the radio doesn't affect wi-fi. there are some settings that disable wi-fi after a period of no use. it could be that. only reason that would occur while you're actually using it tho would be that it was using your data connection and not wi-fi the whole time so wi-fi stayed inactive and decided to shut off. check your wi-fi settings.
I made sure that I disabled data connections (since I don't have a data plan. I cannot connect to the internet if I do not have wifi on).
I'm pretty convinced this is a hardware issue.. Looking at my wifi settings, there's no reason why it should turn off, and the only thing I noticed was that in advanced config, it's set to disconnect wifi after 2 mins of inactivity. I often get disconnected from wifi like 4 seconds after turning it on (and often while I'm trying to load a page in opera too).

Wifi says error. Is there a fix?

For no apparent reason, my phone won't connect to wifi. Says ERROR on wireless connections. It's a rooted device. Tried different roms. Same error.
Anyone?
have you tried a different router or wifi location?
If you have your phone rooted try flashing a diffrent kernel to see if that fixes the problem
he said he tried different roms....
I am also seeing something similar. Running stock froyo ROM with Overstock kernel. What I've noticed is that this doesn't seem to happen when the phone is first booted. After running for a while, the wifi toggle just stops working; resulting in the "Error" status as mentioned by OP.
The only ways around it is to:
a) Reboot, or
b) Use the 'airplane' mode toggle to switch to airplane mode and back, and the wifi toggle works again.
If there was a simple solution around it, that would be great.
I got excited when I saw your airplane mode idea... But it didn't work! Will try a different colonel
Have a look at this thred
I had much the same problem and followed the advice in this thread.
http://forum.xda-developers.com/showthread.php?t=907772
Mine does this whenever I arrive home. If I come to work the WiFi connects right up. But when I get home, the WiFi doesn't connect and shows "error" in the settings.
Going to/from airplane mode worked on my first Captivate (1007 running Paragon RC6 ROM), but it doesn't work on my new Captivate (1101, rooted, stock Froyo). The only thing that works for me is rebooting the phone.
Wifi Fix
Use FXR Wifi Fix app. Worked for me.
Ya sometimes it's just a hotspot acting funny...

[Q] Data stopped working out of the blue...

I'm running the latest RG2x MIUI ROM. One morning I woke up to a dead G2x. Charged my phone up, turned the power on, and no data from T-Mobile.
Phone Calls/Texting and WiFi works perfectly fine.
It's just my 3G/4G not working.
What should I do from here? I haven't tried flashing a new ROM on it yet.
did you turn data off? if u did b sure to turn it back on.... if not then i would try resetting your apns. not really sure on how to do this, because iv never ran miui before. i figure ud hav to go into your apn list then hit menu and hit reset apns

Wifi problems

Well , today when i woke up my wifi just didnt wanted to start. Last night worked fine but today nothing. When i try to start it it starts in 4-5 seconds wich is quiet long time, then it shows that is lookin for wifi signal and in a short time went off. I installed CM 10.1 on it, well here doesnt even want to start the wifi, it showa just Turning on wi-fi. Anyone can help me? i cant even do anything on my phone without wifi.
Flash Stock Rom and see if problem persists.

[Q] WIFI problem

i just bought this phone few days ago, and i've unlocked it, root, and flash recovery.. but it seems there's a weird problem..
my wifi is always turn on, even when i'm turn off it. i'm turn on location and check for battery saving, but it seems activated my wifi all the time.
how can i fix this?

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