But everytime want use wifi also need to put in fridge then how

that's why i stated in the last sentence, need to change it..

This is for phones with WiFi not detecting and not for greyed out WiFi, right? Because, generally speaking, greyed out WiFi means the chip is burnt and I have had a 1-for-1 replacement earlier for my i3G SingTel set due to that. And if the chip is burnt, then I don't think any freezing would help unless you now tell us otherwise.

yup, this method is for the phone that can switch on the wifi but cant detect any network..

That being the case, why do you need to change the WiFi Chip(I am assuming it is that)? It is network problem isn't it, as stated by you?

As mentioned by me, only if the chip is burnt you need to change if your phone's warranty period is over otherwise you can claim for a new one.

Maybe its either the chip or the over heating receiver.. need to consult the expert on this matter this coming weekend..

'cool' solution..
BTW, are u using 3G 8GB ?
I just encountered wifi problems with 8GB model only.. got few units also like dat.. lucky all can send for replacement

well i have the same problem but after i installed pushfix from cydia, it was fine again!

iPhone Generation : 2g
Unlocked? (or Part Number): YES. MA712LL
Current Firmware : 3.0.1
Current network: Maxis
iTunes Version : 9
PC/MAC : pc
Jailbreaking software : cyndia
Problem Encountered : wifi cannot detected any signal
Steps Taken So Far : reset
Screenshot of Problem(if applicable) : sorry
Other Information/Remarks : this 2nd set i just buy it . is there any easier way to make this thing can be use.

bro you dont need a new thread for this...use the existing thread..anyway..try rejailbreaking and see whether the problem solve or not...

try using the latest firmware for ur phone

for the past few days my SBSettings is showing my wifi ip as 192.168.20.1 even though my wifi has been disabled.

funny thing is that, i can still connect to my home wireless network and browse the internet etc, which has an ip address scheme of 192.168.1.x but SBSettings doesn't show it. it still shows 192.168.20.1

when i launch iFile it will load the webserver with ip address of 192.168.20.1 which is wrong :\

is there anyway to reset the ip address without having to reboot the phone or reset network settings?

I have a question..What if the iphone does'nt have a wifi setting or closed enought no WIFI...How would that help me? are there any wifi chip sold or repair in sabah?

This post has been edited by msuah: Mar 18 2010, 07:47 AM

did u install mywi??cuz usually mywi gives that IP to iPhones...well if u did jus off mywi and everything will be back to normal...for sbsetting if u did install mywi and on it without turning on ur wifi in sbsetting will be a little buggy..actually in ur sbsetting is off but in ur setting>wifi is on actually..so jus switch it off in ur settings..that will solve ur problem =)...

This post has been edited by Snuffykl: Mar 12 2010, 08:31 AM

no Mywi installed. i tried turning on/off in settings.

the 192.168.20.1 ip still remains. i don't know where the hell did that IP came from. but my wifi is working like normal. at work, at home no problem. it's getting the right IP from dhcp. just that SBsettings is showing the wrong ip for whatever reasons.

i guess i'll just reboot my phone and see.

I just updated Iphone 3G to 3.1.2. After updating it, i found that the camera app is missing and the wifi is greyed out. I searched online and managed to get back camera by going to restrictions. However, the wifi being greyed out is still a problem. I read multiple forums, tried the soft restart, the reset network, reset all data and connection info, connect to itunes method. None of them worked. I am sure this is not a jailbreak issue as it happened before I jailbroken the Iphone 3G. There is suggestion that the wifi chip could be burnt and thus the wifi option is greyed out (also under settings there is no wifi address).

Like to ask the guru here if this is really a case of hardware failure? Appreciate help from those who hopefully has this issue resolved.

normaly this often occurs after jailbreaking...try restoring to 3.1.2 again and check whether the wifi working or not...if yes the it just jailbreak software problem..if no then it is hardware problem...

@lchee
My other iPhone, the 3G variant had the same problem. Since it was a SingTel set, sent it there and had a replacement on the spot. Apparently, it is a hardware issue.

hi can someone help pls.

my iphone wireless got no problem detecting wifi connection. just that after it is connected and dl-ing for a while, it says no internet connection and i had to return to home screen then only the wifi reconnect. but during this, my wifi on the laptop is connected at all times.

any idea why?

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Added on May 3, 2010, 11:59 amany solutions to my problem plss

This post has been edited by lilster: May 3 2010, 11:59 AM

guys this is a new problem for me, just happened not long ago.
not sure why i cant use my wifi even though the signal is there
apparently when i switch on my safari and load, the wifi signal will turn into edge and i'm charged for data usage.
i could still use the wifi few weeks back...

can this b solved or i need to go to maxis?