As you may know, I’m just back from Beijing. During my trip, I used to switch on airplane mode to avoid any roaming charge. But sometimes, when I was in a cafe with free Wifi, I turned the Wifi on again. Everything works really fine until I was back home. When I tried to connect my iPhone to my home wireless network, it didn’t work. As I checked out the Wifi option in “Settings” screen, the Wifi option is just grayed out or disable by iPhone itself. Even I rebooted the iPhone, the wifi option still stayed in disable state.
This is not the first time I heard from my readers or other jailbreak iPhone users about this Wifi problem. But this is the very first time I experienced it on my iPhone.
And here is the fix:
Reset the Network Setting
Yes, by just resetting iPhone’s network setting, the Wifi option comes back to normal. To reset the network settings, go to “Settings” -> General -> Reset -> Reset Network Settings.

I’m not quite sure if this is the universal solution to the Wifi Grayed-out issue. But this one works for my case. Leave me comment and let me know this works for you or not.
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I got this same problem when I upgraded my Ziphone 1.1.4 iPhone to 2.2 using QuickPwn. The Wifi got grayed out but I was able to restore it back by restarting my phone a couple of times. I guess this solution you posted is better though! Thanks for sharing!
Guys – If you are not able to solve your wi-fi with the steps above then you may have a more challenging problem. I upgraded to 2.2 from 1.1.2 and my wi-fi just wouldn’t work and it wasnt easy getting to the right solution so i’ll try and make it easy for you. Follow the steps below only if you wi-fi worked before upgrading to 2.x firmware and the above solutions has not helped:
1. Downgrade your phone back to 1.1.4 – http://iclarified.com/entry/index.php?enid=1536
2. Unlock and Jailbreak your phone with iLiberty – http://www.iclarified.com/entry/comments.php?enid=849
3. Finally swifi your phone – http://wikee.iphwn.org/sgold_bootrom:fixwifi
All the software required can be found within the links if you still need any help just reply to this thread and leave your email i’ll do my best…hope this helps…
Solution, Fixed for Wifi Greyed out after jailbreak (Iphone 2G)
If your wifi connection problem is not due to AP settings (i.e. icon greyed out), I have tried various methods and found this to be the working solution to my case. I have used all jailbreak programs (quickpwn, winpwn, ziphone and others) and found the solution fix for Wifi. Would like to share so that the rest can spend their quality time on something more productive rather than going through what i have been through.
Despite the facts of some saying downgrade and upgrade of firmware, or using different version of itune to solve the wifi greyed out, it does not matter in this process.
I am on the following env when wifi is greyed out: Vista, Itune 8.0.2.2, Firmware 2.2.1 jailbreak. tried also on a corrupted restored and it works in both cases.
Solution to the problem:
- Use Itune to shift restore your firmware back to 2.0.2
- Use winpwn to create custom firmware on 2.0.2 (if you are on ATT sim), do not need to select unlock
- Shift restore iphone using the custom firmware created by winpwn
note: if you PC does not recognize iphone, first when iphone is detected as an unknown device, delete root hub one by one and vista will redetect one of them as mobile apple device. To do restore, switch off your phone, unplug USB cable, plug it in again while holding the home button for 20secs, vista will detect it as mobile device.
Another note, after winpwn 2.5 finish created the custom firmware, and after it has put you iphone into DFU mode, Itune will start and winpwn 2.5 will hang, it is completely ok, continue to restore via itune and ignore the winpwn hang. After restore, restart your PC, everything will work just fine.
I was updating my friend’s iPhone from 1.1.4 to 2.2.1 using pwanage tool and got this problem. Everything works fine with my iPhone.
I wanna know if there’s a way i can fix the problem for the version 2.2.1 itself and don’t have to downgrade it to 1.1.4 or downgrading is the only option i’m left with.
Please help.
Thanks a lot paul, you just saved my day, and saved me a lot of work.
thank you so much this worked GREAT!!! i just unlocked and jailbroke my iphone and the wifi was gray but this worked. once again thanks,
dylan
thanks this worked great!
Okay, now here’s a funny thing… I’d updated to 2.2.1 and got the wifi problem. And was absolutely glad to have found a solution after loads of hard work surfing and searching… But as it turns out i’m now unable to discover the way to downgrading from 2.2.1 to 1.4. The ziPhone thing isn’t able to downgrade my baseband.
Please someone help. I unlocked my iphone with yellowsnow and a few weeks after my wifi became disabled. Any advice? Would appreciate. Thank you in advance.
Please someone kindly take the time to help me out. I unlocked my iphone a while ago using yellowsnow, and ever since then my wifi has been disables. Any thoughts or suggestions? Thank you in advance.
Hey Thanx man, this simple tip worked great for me!
I had the same problem guys my wifi suddenly grayed-out I tried each and every thing but at last I just done a soft reset and it comes back
i m using 2G with 3.0
working perfect and today it suddenly greay out
i just restore again with 3.0 this will bring it back but now its not connecting to router there is some thing else
i can on the WIFI but i can’t connect to any wireless network whats the problem reset network reset all setting nothing works i restore 3 times
NAEEM FAROOQUI.
nnaeem11
I have the same problem
How to solve it?
Regular 3G with 3.0. WiFi is grayed out. Happed a little while after I upgraded. Ran through the Erase / Restore / Sync cycle a couple of times but nothing. WiFi Address registers as N/A. Will be walking this to an Apple Store tomorrow, but I am out of warranty. Screwed?
Outstanding! Your tip worked great for me. I have a iphone 2G, used redsn0w to jailbreak and unlock. Tried all kinds of stuff to make it work (hours lost), finally found your suggestion. Two minutes later, I’m up and running.
I finally got around to writing a post about my experience using this tip. You can read it here: http://blog.tekdig.com/2009/08/fixing-iphone-wifi-connect-problems.html
Comfirmed. I had same problem with a 1G iPhone with 3.0 OS. After I reseted the network settings the Wifi works fine.
Worked like a charm on the first attempt on a jailbroken 3G 3.0.1
Thank you,
Tuna Oddfellow
Will this work on a jailbroken and unlocked iphone? Or is this part of the issue.
no it doesn’t work do u got any other way?
no it doesn’t work. is there any other way, plz tell me
my 3g 3.1(7c144)wifi is gray so i need HELP
Mine is 3g 3.0. I restored it. Didn’t work. Need help!!
I believe Apple makes this bug so that make time for ATT to upgrade network. Just a bund of cowards. Boycott Apple productions (iphone as well as itouch)
no i have tried,but it doesn’t works. i bring it for service and they changed to brand new iphone for me for free. i was really surprised and was happy. from that day i am keeping my handphone safely. so i may suggest if it have been 12 months since u bought the iphone, u can ask tham whether is it possible to change the iphone to brand new one as singapore singtel had the good heart to change it for me.
hi, im from brasil my iphone is legal here, but the wifi is gray and imposible to turn on, iphone 3g 3.12.
what I have to do? i reset the settings wet. I restored and nothing happend
i change 2 time for a new,
first iphone bad connection
second iphone dead pixels
and now i have to change again?
Maybe apple send a bad iphone to brasil
hi guys i’v a iphone 2G jail brocken one. now my wifi is not working. previously it works fine. some time back i updated the phone to 2.2 vertions from then onwords it’s not working. now i have 3.0 but still it’s not working. i have followed all your tips. i’v reset network settings more than 10 times. but it’s not there. sometimes it says can’t scan for wifi networks. need help guys, what should i do? at least any free software’s to solve this???
I’m using original Iphone with version 3.1.2 . My wifi also cannot work. Every time when i try to connect to web or download my Email, it always show ” The connection to the server failed “. Is there any way that I can do to fix this problem?I din’t try the method above cause i using legal iphone that why i didn’t download jailbreak software.