[Q] Actual wifi fix for gt-i9100? - Galaxy S II Q&A, Help & Troubleshooting

Hi,
Has anyone actually found a fix for the connectivity problems on the gt-i9100 I've scoured the threads here but have not found a suitable fix though many people appear to have the same issue. I may of overlooked a fix somewhere but I'm now at the point of giving up and I'm really hoping someone can help resolve this.
Let me start by saying that this is NOT A ROUTER ISSUE as I have the same problem at friends houses', wifi hotspots e.t.c.
My problem/s as follows:
1) Connectivity lost after phone has been in sleep. wifi connection is shown but there is no transfer of data.
2) wifi randomly disconnects and reconnects with a message pop up saying that I am not connected. Again the wifi icon still shows that I am connected.
3)Loss of data transfer while using wifi apps such as viber, facebook, gmail e.t.c. Again the connection icon is still shown.
The 3 issues are appear to be one and the same I just mention them all as some people only mention one of the above symptoms in previous threads.
I'm currently running jellybean but this was also a problem before the upgrade.
I'm will be extremely grateful to anyone who could offer a solution as I use viber a lot due to being out of country and use it to text those at home and I keep having to manually disconnect and reconnect my wifi to ensure I'm getting the messages that are sent to me and it's driving me f#*king crazy.

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irishsdave said:
Hi,
Has anyone actually found a fix for the connectivity problems on the gt-i9100 I've scoured the threads here but have not found a suitable fix though many people appear to have the same issue. I may of overlooked a fix somewhere but I'm now at the point of giving up and I'm really hoping someone can help resolve this.
Let me start by saying that this is NOT A ROUTER ISSUE as I have the same problem at friends houses', wifi hotspots e.t.c.
My problem/s as follows:
1) Connectivity lost after phone has been in sleep. wifi connection is shown but there is no transfer of data.
2) wifi randomly disconnects and reconnects with a message pop up saying that I am not connected. Again the wifi icon still shows that I am connected.
3)Loss of data transfer while using wifi apps such as viber, facebook, gmail e.t.c. Again the connection icon is still shown.
The 3 issues are appear to be one and the same I just mention them all as some people only mention one of the above symptoms in previous threads.
I'm currently running jellybean but this was also a problem before the upgrade.
I'm will be extremely grateful to anyone who could offer a solution as I use viber a lot due to being out of country and use it to text those at home and I keep having to manually disconnect and reconnect my wifi to ensure I'm getting the messages that are sent to me and it's driving me f#*king crazy.
Click to expand...
Click to collapse
you rooted? I read somewhere it's a kernel issue, so try flashing the siyah kernel.
[EDIT] Knew i'd seen it somewhere!
http://chaladi.wordpress.com/2012/07/31/solved-wifi-connectivity-issues-in-samsung-galaxy-sii/

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New problem
Ok, there's now a new problem, I rooted my phone using the one click tool supplied by DooMLoRD, no problems phone rooted.
The I flashed the siyah kernel as suggested, using odin3 v3.07, got the green box saying pass when the phone turns on I get as far s the purple and black logo (assuming its the siyah logo) screen goes black nothing happens, I can still access the download and reboot screens but that's all.

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irishsdave said:
Ok, there's now a new problem, I rooted my phone using the one click tool supplied by DooMLoRD, no problems phone rooted.
The I flashed the siyah kernel as suggested, using odin3 v3.07, got the green box saying pass when the phone turns on I get as far s the purple and black logo (assuming its the siyah logo) screen goes black nothing happens, I can still access the download and reboot screens but that's all.
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Click to collapse
You tried wiping data / factory reset in recovery,
Sent from my GT-I9300 using xda premium

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Just did it no, no good I'm in the middle of downloading the offical jellybean firmware from sammobile so i can flash it back on there, it's gong to be another 20mins, I really hope it works as I cant afford a new phone of any sort, never mind another galaxy

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If you can get in to recovery and download mode, you're just seeing a bootloop! You should be fine flashing JB through odin! Next time be sure to make a backup
You sure you used the kernel fo s2 and not s3 (thought id ask)
Sent from my GT-I9300 using xda premium
---------- Post added at 10:14 PM ---------- Previous post was at 10:13 PM ----------
squ89r97 said:
If you can get in to recovery and download mode, you're just seeing a bootloop! You should be fine flashing JB through odin! Next time be sure to make a backup in cwm then flash siyah through cwm.
You sure you used the kernel fo s2 and not s3 (thought id ask)
F
Sent from my GT-I9300 using xda premium
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Click to collapse
Sent from my GT-I9300 using xda premium

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eolOrda both
squ89r97 said:
If you can get in to recovery and download mode, you're just seeing a bootloop! You should be fine flashing JB through odin! Next time be sure to make a backup
You sure you used the kernel fo s2 and not s3 (thought id ask)
Sent from my GT-I9300 using xda premium
---------- Post added at 10:14 PM ---------- Previous post was at 10:13 PM ----------
Sent from my GT-I9300 using xda premium
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Yeah made sure it was for the s2, they are well labeled on the site. Don't think I'm stuck in a boot loop because I can get as far as the siyah logo before the screen goes blank and I have to initiate reboot and download mode myself using the 3 keys.

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irishsdave said:
Yeah made sure it was for the s2, they are well labeled on the site. Don't think I'm stuck in a boot loop because I can get as far as the siyah logo before the screen goes blank and I have to initiate reboot and download mode myself using the 3 keys.
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Click to collapse
Yeah that's a bootloop, its doesn't have to restart and do it again despite the "loop" its a boot problem. If you don't have siyah, it'd just be stuck at the samsung logo.
Sent from my GT-P3110 using xda premium

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squ89r97 said:
Yeah that's a bootloop, its doesn't have to restart and do it again despite the "loop" its a boot problem. If you don't have siyah, it'd just be stuck at the samsung logo.
Sent from my GT-P3110 using xda premium
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Ok, well tthere's only 1min left until my sammobile download is complete, I'll let you know what happens

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ok, it seems to be going again just going through the process of setting everything up again. Any idea on how I might get siyah going, from what I've read it seem to be well worth having.

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irishsdave said:
ok, it seems to be going again just going through the process of setting everything up again. Any idea on how I might get siyah going, from what I've read it seem to be well worth having.
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Click to collapse
Id root your phone again. Use chain fires root though. Think the updated one is cf auto root. And flash cwm! A recovery. Make a backup in cwm. Then you can download the siyah zip. And flash it through cwm. If it fails this time you can restore that backup without doing the whole odin process.
Sent from my GT-P3110 using xda premium

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function aveling
squ89r97 said:
Id root your phone again. Use chain fires root though. Think the updated one is cf auto root. And flash cwm! A recovery. Make a backup in cwm. Then you can download the siyah zip. And flash it through cwm. If it fails this time you can restore that backup without doing the whole odin process.
Sent from my GT-P3110 using xda premium
Click to expand...
Click to collapse
I will try that tomorrow or in next few days, I"ve had enough of it for one day, I'm new to this and scare easily, I'm so afraid of reducing my phone to a paper weight. Thanks for your help. I'll post here to let you know how I get on.

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irishsdave said:
I will try that tomorrow or in next few days, I"ve had enough of it for one day, I'm new to this and scare easily, I'm so afraid of reducing my phone to a paper weight. Thanks for your help. I'll post here to let you know how I get on.
Click to expand...
Click to collapse
No problem, I think you've done really well tbh! Rooted, flashed a kernel, got a bootloop, flashed stock via odin! I'd say you're a seasoned pro now! Best to start with a fresh head though hey all the best!
Sent from my GT-P3110 using xda premium

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GROUPING publem
squ89r97 said:
No problem, I think you've done really well tbh! Rooted, flashed a kernel, got a bootloop, flashed stock via odin! I'd say you're a seasoned pro now! Best to start with a fresh head though hey all the best!
Sent from my GT-P3110 using xda premium
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Ok, I've siyah running, I used jeboo to flash instead of cross fire as I wasn't entirely sure if I had the correct kernel for my model, no problems anyway. However I still have the same wifi issues

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irishsdave said:
Ok, I've siyah running, I used jeboo to flash instead of cross fire as I wasn't entirely sure if I had the correct kernel for my model, no problems anyway. However I still have the same wifi issues
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Ha, never heard of jeboo or cross fire! Only other thing I can think of is flashing to a 4.0.4 stock rom, use odin! Root it and install cwm. Turn on all the bluetooth, gps and wifi reboot it into recovery (cwm) and flash either a different rom or the siyah kernel. (Probably both to be fair)
Sent from my GT-P3110 using xda premium

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squ89r97 said:
Ha, never heard of jeboo or cross fire!
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I think he meant Chainfire, not cross fire..
"To err is human, to forgive is divine"
Sent from my SGS II

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squ89r97 said:
Ha, never heard of jeboo or cross fire! Only other thing I can think of is flashing to a 4.0.4 stock rom, use odin! Root it and install cwm. Turn on all the bluetooth, gps and wifi reboot it into recovery (cwm) and flash either a different rom or the siyah kernel. (Probably both to be fair)
Sent from my GT-P3110 using xda premium
Click to expand...
Click to collapse
Success!!! I tried it with using the same rom and siyah (wasn't keen on changing as it was running very smoothly) only this time with wifi, bluetooth and gps all on. I would never of imagined something so small would make such a difference. I do feel bad now though that my galaxy won't be used to even a fraction of the potential that's now unlocked on it, following instructions, downloading and pushing buttons is easy but after that I'm lost Thanks again, delighted to see the end of that problem, it doesn't say a whole pile for samsungs quality control when they can let phones out onto the market with such a major bug or that they've failed to rectify it with updates. Its made me consider making a move to another manufacturer next time, perhaps back to good old nokia, once the king phones and it looks like there heading back to the throne again.

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immortalneo said:
I think he meant Chainfire, not cross fire..
"To err is human, to forgive is divine"
Sent from my SGS II
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I did mean chainfire I should really work on my proof reading.

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Please add [SOLVED] to the title of your post then.
"To err is human, to forgive is divine"
Sent from my SGS II

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irishsdave said:
Success!!! I tried it with using the same rom and siyah (wasn't keen on changing as it was running very smoothly) only this time with wifi, bluetooth and gps all on. I would never of imagined something so small would make such a difference. I do feel bad now though that my galaxy won't be used to even a fraction of the potential that's now unlocked on it, following instructions, downloading and pushing buttons is easy but after that I'm lost Thanks again, delighted to see the end of that problem, it doesn't say a whole pile for samsungs quality control when they can let phones out onto the market with such a major bug or that they've failed to rectify it with updates. Its made me consider making a move to another manufacturer next time, perhaps back to good old nokia, once the king phones and it looks like there heading back to the throne again.
Click to expand...
Click to collapse
I have the same problem,but I didnt understand what have you done to get them work