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Two days ago, my device suddenly could not connect to any wifi anywhere, encrypted or not, WEP nor WPA. This began to happen after I did a backup though CWM.
It sees networks but continuously runs through a scanning, connect, disconnect, scanning cycle. It tries to set the IP from the network, but then flashes unsuccessful and starts scanning again and repeats the process, and in the list of available networks, all available networks cycle between being not in range, remembered or disabled.
Sometimes wifi networks are greyed out, sometimes, not. Sometimes it cannot even find my router, even if I place the Tab on top of it. It connects once in a while, randomly, but only holds the connection for a few minutes.
I have other wifi tablets and all can connect to my wifi, nothing has changed with my wifi settings, router, etc. But to make sure, I did cycle the modem and router on and off and even reset the Airport Extreme that I use to factory settings. Modem is new and Airport Extreme is only a couple of months old.
My Tab is rooted and running stock HC. Never been dropped, great condition, never exposed to shocks, water, etc.
I have tried the following fixes:
Restored to factory settings, wipe data, etc. Nothing. I have tried this several times.
I have tried setting a static IP address. Nope.
ODINed it back to stock using P6210XARKL1_P6210UEKL1_HOME.tar.md5. It briefly connects to wifi long enough to apply the update and after that, it starts cycling scanning, connecting, disconnecting, etc. Tried this several times as well.
I even tried the update to the UK ICS for the P6210 and have the same problem. It sees wifi, but cannot connect, and on occasion it cannot see any wifi at all, even when I am 2 feet away from the router.
At this point I am convinced that it is a hardware issue (either that or it is pouting because there is a new Nexus 7 in the house)
Anyone have any other suggestions for a fix?
Update:
I did another hard reset from within Settings-->Storage--> Factory Data Reset, rather than through recovery (either stock recovery or CWM) as I had done before.
Now, wifi connects a little more consistently. Would resetting that way actually make a difference? Or is this just a random thing? Am I trying to see a logic where none exists?
How would a hard reset through the system settings be any different than one through recovery? Or, does each reset clear something else that got corrupted along the way?
My wifi still randomly cycles through scanning, connecting, disconnected, just as before. However, now the connection is actually made more quickly (under a minute when before it could take up to 15 minutes - or just never connect) and seems to remain connected for longer periods of time now.
Well, after searching and reading through 100s of similar issues one of the workarounds is to use a wifi widget or a WiFi Fixer App.
I am using a widget to control wifi and it along with any other random thing I might try can occasionally make my Tab connect to my Wifi network.
VitaZora said:
Two days ago, my device suddenly could not connect to any wifi anywhere, encrypted or not, WEP nor WPA. This began to happen after I did a backup though CWM.
It sees networks but continuously runs through a scanning, connect, disconnect, scanning cycle. It tries to set the IP from the network, but then flashes unsuccessful and starts scanning again and repeats the process, and in the list of available networks, all available networks cycle between being not in range, remembered or disabled.
Sometimes wifi networks are greyed out, sometimes, not. Sometimes it cannot even find my router, even if I place the Tab on top of it. It connects once in a while, randomly, but only holds the connection for a few minutes.
Click to expand...
Click to collapse
VitaZora said:
Well, after searching and reading through 100s of similar issues one of the workarounds is to use a wifi widget or a WiFi Fixer App.
I am using a widget to control wifi and it along with any other random thing I might try can occasionally make my Tab connect to my Wifi network.
Click to expand...
Click to collapse
Persistence = Profit.
I think I have finally solved the broken wifi issue. Just to recap, the problem started after I did a backup with garyd9's CWM http://forum.xda-developers.com/showthread.php?t=1379532.
And as a last ditch effort I even tried toggling the wifi on/off with a widget as was suggested from other sources (Google is your friend), in addition to factory restores, or restoring from a CWM backup, etc. And that was not a reliable solution after all.
These are the steps I took.
Through stock recovery, I wiped data and cache, and did a factory restore, twice.
I ODINed back to stock, again.
Wiped data and cache and did a factory restore.
Wifi was still sluggish to connect, but finally I was able to load the update.
Then I wiped data and cache and did a factory restore again.
It has been 24 hours and I still have a strong wifi connection. If I power my Tab off and wait an hour or two, then reboot it connects immediately to wifi. If I toggle wifi on/off it still makes an immediate connection. YAY!
So, it seems that something got corrupted during the initial CWM backup and then persisted through many wipes and reinstalls.
UPDATE:
Still have working wifi!
I'm having the same problem now. I'm using latest CM9.
I was using Google Chrome just fine when suddenly Wifi disconnected for no apparent reason and it's now showing the same symptoms you described in the first post. I have formatted cache and cleared dalvik cache and it didn't work. Wiped everything and it didn't work. Reflashed CM9 and tried two different Wifi fix flashable ZIPs but I still got the problem. I'm wiping everything and reflashing CM9 once again.
Is someone else experiencing this?
I'm afraid to data wipe in stock recovery due to the brick bug reported (my tab uses one of the defective chips).
How is your Wifi holding up, VitaZora?
I hope persistance pays off.
rickmiraldo said:
I'm having the same problem now. I'm using latest CM9.
I was using Google Chrome just fine when suddenly Wifi disconnected for no apparent reason and it's now showing the same symptoms you described in the first post. I have formatted cache and cleared dalvik cache and it didn't work. Wiped everything and it didn't work. Reflashed CM9 and tried two different Wifi fix flashable ZIPs but I still got the problem. I'm wiping everything and reflashing CM9 once again.
Is someone else experiencing this?
I'm afraid to data wipe in stock recovery due to the brick bug reported (my tab uses one of the defective chips).
How is your Wifi holding up, VitaZora?
I hope persistance pays off.
Click to expand...
Click to collapse
My Tab also has the defective chip, but I didn't know that until AFTER I went through all those wipes and reinstalls.
But I can report that all is well and wifi is still working like a charm.
VitaZora said:
My Tab also has the defective chip, but I didn't know that until AFTER I went through all those wipes and reinstalls.
But I can report that all is well and wifi is still working like a charm.
Click to expand...
Click to collapse
Ohhh I see...
I did wipe in HC stock recovery several times, but not in ICS stock recovery.
Have you wiped in ICS stock recovery? By selecting "Factory default" option from config menu or by manually going to recovery and selecting data wipe? Or both? Hahaha
Thank you for the reply!
rickmiraldo said:
Ohhh I see...
I did wipe in HC stock recovery several times, but not in ICS stock recovery.
Have you wiped in ICS stock recovery? By selecting "Factory default" option from config menu or by manually going to recovery and selecting data wipe? Or both? Hahaha
Thank you for the reply!
Click to expand...
Click to collapse
Honestly, I can't remember. I know I flashed ICS twice as well as the CM9 version for our Tab.
I think the order for flashing from rooted HC was the following:
ICS, CM9, HC, HC, HC, ICS, HC.
In between each was either factory restore from the config menu or through recovery. Occasionally after flashing my device back to stock, it would go into a reboot loop and the only way to fix that was to enter recovery and wipe everything. But I reflashed so many times and tried wiping and factory restores multiple times as well, that I may have wiped ICS through recovery - in fact I am sure I did at least once.
Oh well, I guess I live dangerously.
rickmiraldo said:
Ohhh I see...
I did wipe in HC stock recovery several times, but not in ICS stock recovery.
Have you wiped in ICS stock recovery? By selecting "Factory default" option from config menu or by manually going to recovery and selecting data wipe? Or both? Hahaha
Thank you for the reply!
Click to expand...
Click to collapse
Carefull! ICS stock recovery may brick you're tab. See this thread
I installed CM9 on my phone and it seems to be working fine, except few issues. One issue is that when I enable WiFi Hotspot, it fails to start.
When I go in settings, I can provide settings for WiFi Hotspot. After that, when I enable it, I see in notification area that wifi is being disabled, but after that hotspot option becomes enable again, wifi remains enabled and not hotspot is available for my computer to connect to.
I installed a teethering app from Play store and that works, but that creates an adhoc network only. I was able to use wifi teethering with HTC image, before installing CM9.
I have S-ON.
Does anyone else has seen this issue, especially with Cyanogenmod 9 Stable (cm-9.1.0-doubleshot.zip) on this phone
I've been using the CM9.1 + drain fix + USB fix ROM you'll see in the development section since November. I'm on r8, but they're up to r9b now. This is much better than the plain CM9.0 for our device as it fixed a couple of major issues like battery drain and slow USB transfer rates. I used WIFI hotspot and tethering for the first time last Thursday, and it worked first time no problem. No additional apps needed. Got my laptop hooked up to the internet and able to VPN into work network in a moving car (somebody else was driving honest!). Not sure if that helps answer your question directly, but it certainly works in CM9 series ROMs, and if you don't have 9.1 you should go get it1.
davidf9 said:
I've been using the CM9.1 + drain fix + USB fix ROM you'll see in the development section since November. I'm on r8, but they're up to r9b now. This is much better than the plain CM9.0 for our device as it fixed a couple of major issues like battery drain and slow USB transfer rates. I used WIFI hotspot and tethering for the first time last Thursday, and it worked first time no problem. No additional apps needed. Got my laptop hooked up to the internet and able to VPN into work network in a moving car (somebody else was driving honest!). Not sure if that helps answer your question directly, but it certainly works in CM9 series ROMs, and if you don't have 9.1 you should go get it1.
Click to expand...
Click to collapse
Thanks davidf9. I will try CM9.1.
From where I can get drain fix and USB fix?
Couple of other issues, I am seeing are: 1. no keyboard lights for caps lock or Alt buttons. 2. For some reason my barcode/QR reader/Google gogle apps are not able to lock on bar codes and when they snapshot they get scrambled image. Also, some other apps (like 3d compass) having distorted view from camera. Camera app itself working fine.
Have you see any of these issues with CM9.1?
The battery drain and USB drain fixes are built into the ROM by scverhagen, you don't need to separately apply them.
As to your other questions, the caps and alt LEDs don't work for me either I just hadn't noticed! I don't have any problem with my QR code scanner, but I don't use the other things you mention so can't comment.
I installed scverhagen's build cm-9-1-(3-0-53)-r9b.zip (MD5 1c16aafa8d0220d44b5b7ea22e7fb24c) from http://forum.xda-developers.com/showpost.php?p=32192055. I cleared Delvik cache, battery stats cache and cache partitions before installing it.
It fixed camera / QR Code Reader issue, but HotSpot issue is still there.
I did some more research and found some suggestions about "fixing permissions", turning wifi off and rebooting. I tried these and got Hotspot temporarily once, but on next try it failed.
I guess I need to collect logs and see what's going on. Thanks for your help.
You did a factory reset/wipe while in recovery as well didn't you? Several guides around here recommend doing the whole sequence several times over. Look for some of Strapped365's posts.
As I said, the hotspot worked for me first time, no problem. Just what was built into CM, no new apps. Must have been lucky. Sorry can't help further.
I didn't do a Factory Reset this time . I did that for when installing Cyanogenmod ROM, but I didn't had time to reinstall all apps and do all the settings again this time around. May be I will retry on weekend.
Thanks for the great help.
If S-On, you'll always have to fastboot flash boot boot.img thru ADB or your network never will work.
The PROPER way to wipe before a flash is as follows:
1. Wipe dalvik TWICE.
2. Under 'Mounts & Storage' format system.
3. THEN factory reset on the first CWM page.
These are the minimum requirements for a complete wipe.....
Thanks. I didn't do step 3 for this ROM installation. I am thinking of taking a Titanium Backup of all the apps, following your steps and then restoring apps after installation.
I am hoping this will save me from hassle of re-installing all the apps and configuring them.
That it will do. Just be aware that reinstalling them in a different ROM with their data sometimes causes an issue with an app. It will put them all back though....just not on your different pages that you may have them on.
Recently I have been experiencing Wifi disconnects every 2-3 hours. I have tried Wifi settings by clicking on connect, tried choosing forget and resiging in and tried the app Wifi fix but all the app tells me is it is "completed" but it is not. The only way I can get it back is to reboot but then it only fixes it for a couple hours. I thought it might somehow be connected to the rom (CROMI-X 5.2.4) though it has never happened with any rom before. So, I reinstalled a older rom (CROMIX 4.7.0) which was always stable for me in the past but it started doing the samething.
lartomar2002 said:
Recently I have been experiencing Wifi disconnects every 2-3 hours. I have tried Wifi settings by clicking on connect, tried choosing forget and resiging in and tried the app Wifi fix but all the app tells me is it is "completed" but it is not. The only way I can get it back is to reboot but then it only fixes it for a couple hours. I thought it might somehow be connected to the rom (CROMI-X 5.2.4) though it has never happened with any rom before. So, I reinstalled a older rom (CROMIX 4.7.0) which was always stable for me in the past but it started doing the samething.
Click to expand...
Click to collapse
Go into setting/wifi/advanced In there make sure you WiFi region is set to your area... Try unchecking some or all of the optimization for the wifi... See if that helps, let me know.. As always thx lj
The only thing I have checked in Advanced Wifi is Notifications Wifi on during sleep is set to never. As for right region I.m not sure what you mean, my mac and ip address' are correct.
Check your router as well. In my experience routers cause a lot more wifi problems than people realise.
It's worth rebooting them every now and then. Also download wifi analyzer and make sure you aren't on a channel with a lot of neighbours.
DIdn't you have a NetGear router? The latest firmware was known to cause issues. Did you downgrade it?
I rebooted my router and I moved to another channel, so now I will wait and see. What I do not understand is when I lose wifi on the Asus I will ask my wife to check the wifi connection on her tablet and hers is fine?
Well guys, I did everything you suggested and it is still doing it. I am now running 5.3a. Has anyone everheard of the wifi just suddely breaking on the Asus? The reason I ask is that even though I broke my Asus warranty I do have a square trade warranty.
lartomar2002 said:
Well guys, I did everything you suggested and it is still doing it. I am now running 5.3a. Has anyone everheard of the wifi just suddely breaking on the Asus? The reason I ask is that even though I broke my Asus warranty I do have a square trade warranty.
Click to expand...
Click to collapse
Try flashing back to pure stock from Asus or a clean install at least.
When doing a clean install but I want to save whats on my internal card can I just move /sdcard to my pc before I do a full wipe or should I move other stuff also? What do you suggest?
lartomar2002 said:
When doing a clean install but I want to save whats on my internal card can I just move /sdcard to my pc before I do a full wipe or should I move other stuff also? What do you suggest?
Click to expand...
Click to collapse
If you just wipe from TWRP it only wipes you apps and data. You won't lose any media stuff so pictures, music, videos etc will stay. You should do a titanium back up if you want to restore apps and data.
If you choose format you will lose all so yes you would need to backup to either your PC or external SD. But you don't need to format to do a wipe.
Did a clean install and now wifi no longer stops.
I am having another problem, playstore apps updates or new apps do not seem to ever finish d/ling, the blue line just keeps running forever. I have tried stopping and restarting but that does not seem to do anything.
Should I post this as a new question?
lartomar2002 said:
Did a clean install and now wifi no longer stops.
I am having another problem, playstore apps updates or new apps do not seem to ever finish d/ling, the blue line just keeps running forever. I have tried stopping and restarting but that does not seem to do anything.
Should I post this as a new question?
Click to expand...
Click to collapse
Try clearing cache and data in the Playstore app in Settings > Apps
My Bluetooth on my Galaxy Tab S 10.5 has been working a month ago. Haven't used it ever since. Today I tried to turn it on, and it just reverts back to off in 3-4 secs.
Tried clearing Bluetooth cache and data, as well as system cache and dalvik cache without success.
Is there anything else I can try? What worries me is that it doesn't seem to be a common issue.
I am rooted, stock rom 4.4.2, haven't done pretty much anything extreme at all.
I read on some sites that doing a soft reset usually fixes this, but the battery on this tablet is not removable, so how can I do it?
edit: also - unrelated - first time I turn off Airplane mode in a long while, how the hell is it possible I have 3-4 signal bars even if I don't have any SIM in?
So, I bought a cheap "4k action camera" to play around with. It has wifi, and I was working on getting it connected to my phone .
While doing so, the wifi on my phone sort of.. hung. I couldnt switch to my usual wifi network, it was just sit and spin, eventually wifi stopped showing my networks altogether. If i open ip the wifi settings, the indicator just spins, i cant turn off wifi, and no networks are listed. After doing so, I cant even shut down my phone without holding the power button for 10 seconds.
I'm just trying to get this cleared up, anyone have any suggestions? I have my phone connected via ADB, but it's stock, no mods, no root. I've considered a factory reset, but I'd like to avoid that if I can.
Thanks!
Well. After a few hours of fighting with this, I ended up unlocking (which of course wiped my phone). This way I'm free to root or flash in the future without that being a barrier again. The wipe, of course, resolved my problem.
I'm trying to decide if I want to jump straight to a custom ROM now or not, before I get too deep into getting my phone set back up. Any suggestions?
Thanks for reading!