I bought unbranded Galaxy S3. It came with ICS, the I got OTA update to Jelly Bean v.4.1.2 I9300UBELL1 Kernel 3.0.31-783635 se.infra@SEP-92 ·1 SMP PREEMPT Fri Jan 4 19:59:29 KST 2013.
After that it was imposible to connect to any WiFi router (tried different ones that were working OK with other devices). I did a factory reset and still no WIFI connection possible. I always got "Network disabled. Poor connection" even with full signal and right by the router. So, I flashed the original ICS stock ROM and every was OK again, WiFi worked perfectly. I tried one more time the JB OTA update and again and ended up with NO WiFi.
I have also tried every trick I´ve found on Internet (like disabling wifi power saving, etc, etc) nothing worked.
Anyone knows how to solve it? I will go back to ICS but that´s not the idea when buying a top smartphone, is it?
Thanks
[Solved]
Rooted, and flashed with stock ROM I9300UBELL1 = Kernel 3.0.31-767276 se.infra@SEI-75#1 SMP PREEMPT Mon Dec 31 13:32:27 KST 2012 ... it seems it is an older ROM but Sammobile.com listed it as a more recently released named as I9300UBELL6_I9300ANCELL1_ANC while the previous one was named I9300UBELL1 ... the last digit is the revision number, isn´t it?
Its not the RIL/modem becuase before that I tried flashing a different RIL firmware and WiFi didn´t work either.
Hope it helps for those left without WIFI.
After that it was imposible to connect to any WiFi router (tried different ones that were working OK with other devices). I did a factory reset and still no WIFI connection possible. I always got "Network disabled. Poor connection" even with full signal and right by the router. So, I flashed the original ICS stock ROM and every was OK again, WiFi worked perfectly. I tried one more time the JB OTA update and again and ended up with NO WiFi.
I have also tried every trick I´ve found on Internet (like disabling wifi power saving, etc, etc) nothing worked.
Anyone knows how to solve it? I will go back to ICS but that´s not the idea when buying a top smartphone, is it?
Thanks
[Solved]
Rooted, and flashed with stock ROM I9300UBELL1 = Kernel 3.0.31-767276 se.infra@SEI-75#1 SMP PREEMPT Mon Dec 31 13:32:27 KST 2012 ... it seems it is an older ROM but Sammobile.com listed it as a more recently released named as I9300UBELL6_I9300ANCELL1_ANC while the previous one was named I9300UBELL1 ... the last digit is the revision number, isn´t it?
Its not the RIL/modem becuase before that I tried flashing a different RIL firmware and WiFi didn´t work either.
Hope it helps for those left without WIFI.
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