Galaxy S2 won't connect to 5ghz

[Anonymous]

Hi there, i have a major issue with my Galaxy S2.
It can see the 5ghz but it simply won't connect to any 5ghz networks anywhere at all. Ever.
This has been a problem for several months now and although i can connect fine to the 2.4 ghz i like the non crowded and better signal that the 5ghz provides.
I also live in an area surrounded by students and can count 24wifi signals within 50 meters of my building.

Things i have done to attempt to manually fix.
Restarted phone (many many times)
Wiped phone to factory settings (8 times)
Downgraded to previous OS (3 times)
Tested 8 different 5ghz networks all the same.
Preyed and cried (2 times)
The only error i get is that it could not authenticate the passwords etc.
I could hand the phone in for a repair but as it was never that important i didn't bother.

Any ideas?

[Anonymous]

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@MI5 wrote:
Yes, unfortunately it has always been an issue with the S3 and also N4.... Adding your device to the preferred or trusted list seems to fix it but obviously only if you have access to the router.

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Yeah that would be a pain for any public wifi points, but I guess most public wifi points are 2.4ghz so should (fingers crossed) be ok.

[Anonymous]

While i can say thanks for the help... it amazingly didn't work.
I use a Belkin Playmax, set up access control, 2.4 worked but 5ghz still gave me the error. It is possible that the 5ghz side of the chip if fubbed?

[Anonymous · Accepted solution]

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@Anonymous wrote:
While i can say thanks for the help... it amazingly didn't work.
I use a Belkin Playmax, set up access control, 2.4 worked but 5ghz still gave me the error. It is possible that the 5ghz side of the chip if fubbed?

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Wowza.  In that case, with all optionx exhasted - gotta be looking at a hardware fault.

Could also be the radio - that could be sorted by flashing another radio however you are going down the route of custom roms etc then...

[Anonymous]

Oh well. I am a month away from my early upgrade so i might just hand it in and have them really fix it as i have insurance on it and it's seems very strongly that it's a hardware fault. But thanks for all the help much appreciated.