Develop Bugs

[Q] Evo randomly reboots to white screen and vibrates 5 times?

Can anybody help me out with this? I've already searched but haven't found a clear cut answer on what to do.
For a while, I've had random events that cause my HTC Evo (running the latest stable release of CM7) cause my phone to suddenly show the "HTC Evo 4G" white screen, then go black and vibrate 5 times while having the green LED on, which never lets me do anything until I pull the battery out and start it up again. It used to only happen when I did specific things, like whenever I tried using Google Goggles at the store (and had to go through all the trouble of disassembling my 3 layer protective case just to pull the battery again). It even happened again yesterday when I was trying to use Goggles on a specific item, but it has happened before in other events since then, like when I was browsing my phone's running applications menu, or even one time when I was simply browsing the internet on it.
I've been taking steps to try and fix it, but I think it's been getting worse. I tried downloading CM7 and Google Apps again to flash on the phone to see if it fixed anything. I tried doing this again, but clearing the data and cache this time. I tried flashing the latest CM Recovery (since I stayed with 2.5.x.x for as long as I could remember), and I'm pretty sure it's gotten worse. There's points where I get to the CM7 boot animation and the phone then does the white screen and five vibrates again, and just a moment ago when I was sure I finally solved it after clearing data and cache, while filling out my Google account info, it happened again and I was greeted once again by that horrendous white screen and the five vibrates.
Now I don't know what to do. I still have S-OFF, but I have no plans to unroot. Can anybody think of suggestions? I've already tried Googling and haven't gotten anything useful enough to help me so far.
EDIT: I guessed it would help if I was a bit more specific. This started happening about two or three weeks ago after I tried using Goggles for the first time in ages. Since then, I've had this issue coming back over and over. It also puzzles me how Goggles usually works completely fine when I'm at home but causes the phone to go black and vibrates 5 times whenever I'm at a store.
Also, right now, I re-downloaded CM7 and Gapps from the CM mirrors instead of simply reusing the ones that ClockworkMod had saved for me already. I hope this somehow makes a difference.
Also, last edit, if I manage to solve this somehow, I'm going to definitely post the answer to what I did in case anybody else out there is having the same issue.
EDIT 2: Welp, re-downloading CM7 and flashing again didn't do anything to fix the problem. I'm going to try another ROM to see if the problem persists. I really want to stay with CM7, though.

Did you wipe everything? Cache and so on ect....?

I wiped everything and I'm still having the issue.
I also caved and I'm going to unroot because the retards over at the Sprint repair center refuse to look at it otherwise. I got my hopes up after hearing on places like XDA or the CM forums about how Sprint didn't care about rooted phones, but I guess the Sprint guys in my area do. I'm currently downloading unrevoked forever son and PC36IMG right now.
I'm just hoping I can get a new Evo after this, because there's a chance I could lose root forever after doing this. But I'm so certain it's a hardware problem.

SirSigma said:
I wiped everything and I'm still having the issue.
I also caved and I'm going to unroot because the retards over at the Sprint repair center refuse to look at it otherwise. I got my hopes up after hearing on places like XDA or the CM forums about how Sprint didn't care about rooted phones, but I guess the Sprint guys in my area do. I'm currently downloading unrevoked forever son and PC36IMG right now.
I'm just hoping I can get a new Evo after this, because there's a chance I could lose root forever after doing this. But I'm so certain it's a hardware problem.
Click to expand...
Click to collapse
Why would you lose root "for ever"?
Just curious ....
Sent From The Tree House Out Back!

I had the same exact issue with my Evo over the past 2 weeks. But I never use Goggles and run MIUI pretty much exclusively. I was never able to fix it and it just got worse. I unrooted and still have the same problems.
I notice it happens on 3g data, I can't remember when it happened on wifi.
I am selling mine back to Sprint tmrw and using my upgrade to get the Nexus S for$50. Then hoping the Evo 3D comes out within 30 days.
Sent from my PC36100 using XDA Premium App

I took it back to Sprint today, and after being treated like a second class citizen for rooting over and over, they managed to somehow fix the random reboots, but have initiated the OTA update for me. Now I'm sitting here with it and it's asking if I should install it now or later.
I'm hesitant because I tried to unroot earlier, and since then, the technician at Sprint said that it wasn't really unrooted or something (I remembered using unrevoked forever last year when I rooted). I'm scared that maybe I'll lose my chance at being able to root again if I accept the update or not. I'm also scared if I won't be able to get full root from here.
EDIT: SON OF A *****. I can't believe this. I applied the OTA update like a good boy and everything, and then the phone starts boot looping randomly again. This is the last straw. I'm going to go back to Sprint tomorrow and be more in-your-face about this problem. I'm through letting them treat me like **** just because I rooted my phone once.

I have a similar problem.....
My problem is random. My phone will go into constant reboot mode until I pull the battery out for 10 minutes. Just pulling the battery and putting it back does not help.
I also noticed that I am losing GPS signal occasionally. It is random too. The GPS will come on and work for about 5 minutes then just lock up. I have to reboot to get it working again and there is no rhyme or reason as to when it will stick (or wont) or how long it will last. It may work for 3 days and then not work a lick for 3 days.
The local Sprint store replaced the back red portion of my phone (the part with the camera lens and kickstand) stating it was an GPS antenna problem. I got 30 secs outside the store and tried the GPS....same problem. I went back into the store and showed them and they tried to convince me I needed AGPS on as well. AGPS always worked but is not as accurate as the satellite GPS. The repair shop refused to do more or order a replacement. I just got scammed out of $35.00 cause nothing is fixed.
I got so pissed, I called Sprint. They were terrific. They refunded the $35.00 the repair center charged me of the repair (the rip-off repair) and agreed to send a replacement phone. Awaiting arrival of the replacement but they are back ordered...so, maybe, I'll get a new phone instead of a refurb.
Long story short...I don't know what is causing your reboots. Mine could not be solved by software changes. My phone was rock solid until around a month ago. Then the GPS dropouts and reboots became more frequent until they became unlivable. I think you have a bad device and would seek replacement.

I had the same problem with mine about a month ago. It happened once about a month before that and then a month ago started happening a lot. I finally narrowed it down to how "hot" it was (body temperature in this case). So basically any time that I was in the car it happened. I was able to unroot (you have to make sure you to s-off on) and put a stock rom on it, and take it in with it happening. They took it for an hour and said they had not seen any issues. I finally convinced them and the replaced it with a refurb. I'm okay as long as it works, but it makes me wonder what happened. When I first got it I used fresh for about a week and then went to CM and was on it the rest of the time. I used an SBC kernel starting around the same time and am thinking maybe that had something to do with it... Just as a precaution I'm staying away from SBC kernels.
If I were you I would just go to the store and get a replacement if you can otherwise if it's like mine you won't be able to count on it working...
Good luck

[Q] I have the grounding issue (bad screen sensitivity)

Hi everybody! I have been reading here that some people had this issue, but I don't see how they solved it. I've had this issue since the beginning.
Basically, screen sensitivity is very bad when the device is unplugged, only when it's plugged in or holding it with both hands it responds correctly.
This is a problem for me, because for studying, i put the a100 on its stand case, and only need one finger to slide a word or ppt. With this grounding issue, i have to touch the a100 with both hands to make it react properly, it's very annoying and uncomfortable.
Should I take it to the technical support? it's a hardware problem? I tried the build.prop from crossix and still the same. And tried the recalibrate.apk without any success. I don't know what else I can do.
I'm still in guarantee, i'm thinking seriously to take it to SAT. But i have unlocked bootloader, how can i revert it? How should i prepare the device to keep manteining the guarantee?
people who sent the a100 to SAT with this problem, it was solved?
thanks, I really need a fix for this

I have installed the official ICS rom and now it seems locked again, and I'm not root anymore. I think it's prepared for SAT, so I've called acer technical support, they will take the tablet for repair on tuesday 15.
I will post the results when they send it back to me, if someone is interested.

Did you try it after the update to ICS? the OTA ICS updates did wonders for the sensitivity of most of our tabs.

Yes, this is happening since the beginning when I bought the tablet with honeycomb, and still happens in ICS. Let's see if the technical support can fix it! because I really love this a100 thanks!
it makes any difference to upgrade by OTA or by flashing the rom that's here? I have flashed ICS, not by OTA

Is your build .14? That's the one that seems to fix the touchscreen problems.

I have had the touchscreen issues since day one also. Same issues, works fine without a case in two hands, one handed or laying it on a table/couch the screen is jumpy, random touches, and glitchy multi-touch. I've run 3.2 gen2, ICS .014, and ICS .017. I've even popped it apart looking for something simple (and to take a look at the wifi antenna), but nothing obvious found. I would have to guess it is a manufacturing defect.

jakob95 said:
Is your build .14? That's the one that seems to fix the touchscreen problems.
Click to expand...
Click to collapse
Yes it's that build (downloaded from the russian link)
This happens also in the a100 of my uncle. He has not yet the build .14, but I'm starting to think this build won't work to fix that.
I thought this build would fix the problem, but...
I want to believe it's a problem with some tabs and I had bad luck, and that technical support will fix it.

I've made this video showing the problem.
http://www.youtube.com/watch?v=yIGnXT22vhA

Definitely a problem with your tablet, mine is perfect.

I have similar problem but not bad us yours .. but iam out of luck because i buy it from ebay with no gurantee

I will send it tomorrow, we will see what happens xD

today my dear tablet have been sent to be repaired. I hope it will be with me soon again! xD I'll keep informing!

I've just received an email saying that my tablet is repaired! they will send it to me in the next days, very fast! I don't know if this is good or bad... xD

aishaz said:
I've just received an email saying that my tablet is repaired! they will send it to me in the next days, very fast! I don't know if this is good or bad... xD
Click to expand...
Click to collapse
Well about all I can do is wish you good luck buddy

I just got a refurb off of ebay and it has a 90 day warranty thru Acer, and the fella I purchased it from.
I am not having any issues with the screen even using the stylus they sent with it.
I tried the stylus to see what the hype was with a stylus and found it to be just that hype.
Do you have any type of screen protector on your tab?
Sometimes certain ones can cause issues.
If your device is under warranty I would let them fix it.

yes I have a screen protector, but the issue is there even without it.
I will tell you when i recover my tab and see if it's fixed xD

yea its the device itself i had problems with mine.. it had become completely unresponsive after i rooted it and installed ics i sent it back to the factory took almost a month and got a new one i suggest u do the same

How do I get a new one? today I have received mine and the problem doesn't seem fixed I wonder what they did to think it was resolved

aishaz said:
How do I get a new one? today I have received mine and the problem doesn't seem fixed I wonder what they did to think it was resolved
Click to expand...
Click to collapse
To be honest I didn't think the problem would be resolved. Contact them again and tell them the problem is not resolved; I'm sorry to say this seems like a design issue.
On the other hand, maybe you are being overly critical? My tab works well, but if I want to make the touchscreen seem less than perfect, then I would have no problems doing so. However, in practice this is a non-issue, and I have not had a problem with either my previous tab (which I sent back because it stopped charging) or my current tab (which I've had for 5 days). Of course, this is after upgrading them to official ICS releases.

I don't think I'm being critical, the fact that I can't slide a document properly without having to hold the tab with both hands is very very annoying for me, since I want it to study and the idea was to keep the tab in a stand in the table and touch it only for sliding for example. I stopped using it for this purpose due to that.
Moreover, my mother has another cheaper tablet and tactil control works so much better... In the same situations that my tab. I envy her for that, cause my tab is over 200€ more expensive and it's suposed to be better xD
I have an exam today, i will try to find time to call acer to tell them the problem is not solved.

[Q] Galaxy S2 Wifi and Bluetooth problems.

Hi everyone!
I recently got a t-mobile galaxy s2. After having it for a week, I rooted it and tried different roms. The last rom that I installed on it was an alpha version of cyanogenmod 9. Everything was working perfectly for a few days and then I started having problems.
The problems are with my wifi and bluetooth, they wouldn't turn on. When wifi did turn on, the phone slowed down and then turned off after a few mins. Thinking this was a cause of rooting, I decided to go back to stock. I wiped everything, formatted the internal sd card, cleared all caches and completely restored everything to stock using odin and the problem won't go away.
Now I'm running stock touchwiz gingerbread rom and when I turn on wifi, it just says "error". I was only able to get it going once and thats when the phone got extremely slow and turned off.
Also it seems like everytime the phone turns off from wifi, the battery looses like 7-10% and it gets really hot.
Here are my questions,
Is this a hardware problem?
I don't have warranty because I bought it from another person. Can I send it out for a warranty repair somehow?
Thanks in advance.

I had the Wifi error also, had to send it in for repair. Make sure you Odin everything back to stock
Sent from my SGH-T989 using xda premium

Thanks for replying.
Did your phone freeze and restart as well?
I called up samsung and they asked me to ship the phone..sent me a shipping label and etc. The problem is, I bought this phone from someone on craigslist. Will I need a receipt? So far it seems like they want me to ship just the phone.
Also I went back to stock completely with odin, do I need to do this as well?
http://forum.xda-developers.com/showthread.php?t=1578184
[Flashable] Odin/Flash-Counter Reset SGH-T989D (Telus) and SGH-T989 (Tmo)
edit: Forgot to add, how can I check if my phone is good to go for warranty repairs?
edit2: Ok I did some research and figured it out. Will update when I get the phone back

Same here...
Problem started with Bluetooth (dont remember which ROM) but I dont use wifi often so I dont know if it started at the same time. Then I switch from ROM to ROM for awhile... now my phone is kinda messed up.
I had the same problem as you, one of the phone which had a very bad battery life did not put the bluetooth to sleep and the phone got pretty hot. Something similar must have happenned to the wifi (same IC maybe?)
I think the IC is now messed up because I returned to stock, (recovery and all) did it 3 times, tried stock ICS stock GB. Then for no reason yesterday, Yay wifi working again, and bluetooth.. but by the end of the day, dead again !
So I get stuck with a wifi that can't turn on/off and a bluetooth that works when it want to...
I even tried messing with my /efs (everything was fine... I think...)
My Wifi & bluetooth MAC address are "unavailable" so I guess it's back to Samsung...
I saw some people complaining about this problem and saying Samsung products are not good... I must say that I owuld not have this problem if I stayed stock... like when I rooted my HTC desire and the "flashlight" turned on and burnt the LED... not HTC's fault... anyway anyone have another dea to try ?
---------- Post added at 03:08 PM ---------- Previous post was at 03:01 PM ----------
Also,
I read like hundreds differents forums about this issue... most if not all of them ended sending their phone to Sammy...
Some did not search very hard for a solution but still. Many have reported that Sammy changed the motherboard, so I guess it's not all our fault ?

Hi has anyone noticed issues with bluetooth headset keep getting disconnected every 2 mins after this ics update? i have Voyager pro HD which was working fine on GB and problem started after this update.

syedfaz26 said:
Hi has anyone noticed issues with bluetooth headset keep getting disconnected every 2 mins after this ics update? i have Voyager pro HD which was working fine on GB and problem started after this update.
Click to expand...
Click to collapse
Yes but it could be all related to my othe rproblems, so...

Bluetooth lost Galaxy s2 ics
I am loosing every 2 min about bluetooth since my update to ICS

Has anyone ever fixed this problem? I have been having the same problem for about a year now and I can't seem to find a solution.

I had this start with my phone around December 2012. It only affected Bluetooth, so I didn't worry too much as I don't use Bluetooth. Then my Wi-Fi started copping out about a month ago. I did some research, and it looks like it's hardware related.
I have an extended warranty that I've paid into every month since I bought it (December 2011). I called the warranty company up, and because it was out of manufacturer's warranty, I had to drop $150 on a new phone. I also spent close to an hour trying to explain to them that I had done nothing wrong to the phone. Apparently, it is in the same category as it being stolen or broken. I was so choked. I've babied this phone like crazy, in fact, it still has the protective cover you find on it when you open it fresh out of the box (I just cut off the tab). I was livid.
Well, my amazing wife ended up calling Samsung directly. The call lasted 5 minutes and they didn't even question the integrity of the phone (other than what I did to fix it and the problem itself). The representative said that because we had never called them before, they would replace it for us, free of charge. I question that they might know there is a defect that happens as this isn't a one-off, but I'm very satisfied with their service. I'll be
If you can produce your original receipt, call Samsung. They should do the same thing for you as they're doing for me. Ironically enough, I'm reverting everything back to stock and backing everything up and happened to see your post.
Hope this helps and good luck.

So just a bit of a bump/update:
I sent my phone in to be repaired (honored by Samsung) and once I got it back, it worked for a while. Shortly thereafter, it started acting up again. I noticed on the sheet showing what they did for service, was apparently doing a re-flash of the original ROM and a factory reset.
Funny thing is, I used a branded TELUS ROM that wasn't exactly stock. If you pressed and held the power button, it would automatically restart... which I found fishy. I saw that this was the exact same ROM that I had put on there once I got it back, so I doubt any flashing took place. All that was done was that factory reset.
Now, to the credit of the factory reset, it worked for a brief while, but ended up with the same issue.
I'm in the midst of doing some diagnostics, but I'm not familiar with logcat. I'm back to the latest PAC build as no other ROM made a difference. I'm going to tinker for a few more days, but I'm pretty sure I'm back to square one.

WiFi and Bluetooth stuck at turning on.

For the past two days I have been having issues where my wifi and Bluetooth wont turn on. The problem started after rooting. I unrooted and returned the device to normal status and no binary downloads but eh problem persists. right now both will turn on and off fine but every once in a while they get stuck at turning on. after a few resets and simply waiting everything goes back to normal but this has happened at least 5 times since yesterday. On my s2 I had a similar issues with GPS. the only solution was to do a factory exchange. I am already set up and the replacement will be sent once the phone is back in stock. I was just curious if anyone had a similar problem and resolved it without having to exchange the phone.

flexte said:
For the past two days I have been having issues where my wifi and Bluetooth wont turn on. The problem started after rooting. I unrooted and returned the device to normal status and no binary downloads but eh problem persists. right now both will turn on and off fine but every once in a while they get stuck at turning on. after a few resets and simply waiting everything goes back to normal but this has happened at least 5 times since yesterday. On my s2 I had a similar issues with GPS. the only solution was to do a factory exchange. I am already set up and the replacement will be sent once the phone is back in stock. I was just curious if anyone had a similar problem and resolved it without having to exchange the phone.
Click to expand...
Click to collapse
Another member had an issue similar to urszhe said he did a warranty exchang thou, couldnt figure it out.
Sent from my SGH-T889 using XDA Premium HD app

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I haven't had any problems today but I know as soon as I loaf all my apps back it will happen again. To be on the safe side I am just going to return it before it gets worse.

I'm having the same problem. Did you go through T-Mobile or Samsung for your replacement?

Went through tmobile. It's been good for more than 24 hours but I don't trust that it won't come back. Then phone is back ordered original would have had the new one by now.

Yeah, it actually started working for about a day, but stopped working when I left the house. Just went to T-Mobile to process the exchange, but they're telling me they can't do it due to the IMEI stating it not being "sold" through a T-Mobile store. Which is odd, because I bought it at a T-Mobile store at full upgrade price while my roommate was working. I have the invoice somewhere here...
Time to jump through hoops to get this replacement.

gaticaag said:
Yeah, it actually started working for about a day, but stopped working when I left the house. Just went to T-Mobile to process the exchange, but they're telling me they can't do it due to the IMEI stating it not being "sold" through a T-Mobile store. Which is odd, because I bought it at a T-Mobile store at full upgrade price while my roommate was working. I have the invoice somewhere here...
Time to jump through hoops to get this replacement.
Click to expand...
Click to collapse
I noticed it usually gets stuck when I leave the house as well. Do you use airplane mode a lot? when I am home I usually keep my phone in airplane mode with Bt and wifi on. the first time this happened I also noticed the wifi looked as if it was connected when i was a mile from home and i had to power down to get a cellular signal. I have had the phone since day one and this just started last week after I rooted. Since many people have rooted and this isn't a known issue I guess its best for us to return the phone and see what happens with the next. Find your invoice and they have no choice to replace it. If you paid by credit card that should work as well. Just show them your statement.

flexte said:
I noticed it usually gets stuck when I leave the house as well. Do you use airplane mode a lot? when I am home I usually keep my phone in airplane mode with Bt and wifi on. the first time this happened I also noticed the wifi looked as if it was connected when i was a mile from home and i had to power down to get a cellular signal. I have had the phone since day one and this just started last week after I rooted. Since many people have rooted and this isn't a known issue I guess its best for us to return the phone and see what happens with the next. Find your invoice and they have no choice to replace it. If you paid by credit card that should work as well. Just show them your statement.
Click to expand...
Click to collapse
I don't use airplane mode at all. T-Mobile gave me the run around so I decided to go through Samsung for my replacement. They originally wanted me to send my phone in for repair, but no way am I going to be without the Note for more than a day.
A Samsung Experience Shop popped up in Best Buy just outside of Chicago. The woman running it wasn't a Best Buy employee, but a Samsung Specialist. She troubleshooted my phone (Factory reset it, even though I told her I already did) and Wifi and Bluetooth didn't work at all. She called her contact at Samsung and they're having a replacement sent to the store that I'll pick up when it comes in and exchange. Good news is that I don't have to send in my Note and have to wait on it!

I haven't had a problem in two days but my replacement is on the way so I will just wait and see if it happens on my new one

OP, I had the exact same issue as you. Wifi and Bluetooth just stopped turning on, intermittently at first. After trying to figure it out for a month or so I decided it must be a hardware issue. Wifi and Bluetooth are controlled by the same integrated Broadcom chip, which might be a common failure point.
I sent it in to Samsung, and they have had it for 2 weeks now... I just got word that it's fixed and shipping back to me. They replaced the PBA (main board).
I have a question. How did you get service through T-Mobile? I bought mine at a T-Mobile store and I was outside of the 30 day return policy. I was under the impression I had to go through Samsung for a defect, or T-Mobile for an insurance claim (pay deductible).

LucJoe said:
OP, I had the exact same issue as you. Wifi and Bluetooth just stopped turning on, intermittently at first. After trying to figure it out for a month or so I decided it must be a hardware issue. Wifi and Bluetooth are controlled by the same integrated Broadcom chip, which might be a common failure point.
I sent it in to Samsung, and they have had it for 2 weeks now... I just got word that it's fixed and shipping back to me. They replaced the PBA (main board).
I have a question. How did you get service through T-Mobile? I bought mine at a T-Mobile store and I was outside of the 30 day return policy. I was under the impression I had to go through Samsung for a defect, or T-Mobile for an insurance claim (pay deductible).
Click to expand...
Click to collapse
I just called tmobile and they sent me a new one. I had a problem with my black berry a few weeks ago and thought i had to send it in for repair but tmboile sent me a new BB as well. usually most phones have a year factory warranty and tmobile is the one that handles that. My phone hasn't acted up in a few days but i am going to keep the replacement and send my old one back just to be on the safe side.

Anybody with a solution for this? Mine started acting up 2 days ago and I'm now a grumpy man.

Are you on custom Rom, and which Rom is it if you are
Possible fix: Odin to stock(sure way to check, or redownload Rom and wipe three times and reflash Rom
Report back
Sent from my SGH-T889 using xda premium

muz4 said:
Anybody with a solution for this? Mine started acting up 2 days ago and I'm now a grumpy man.
Click to expand...
Click to collapse
just return it to Tmobile

OmmNomNom said:
Are you on custom Rom, and which Rom is it if you are
Possible fix: Odin to stock(sure way to check, or redownload Rom and wipe three times and reflash Rom
Report back
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
Doesn't work. I'm on stock all the time btw. And I did the wipe 3 times and flash stock again too.
flexte said:
just return it to Tmobile
Click to expand...
Click to collapse
I'm now in Malaysia for another 3 months and a half. Won't be able to find any T-Mobile here. Any suggestion?

if you are on stock already, then it possibly is hardware

My problem started after I rooted using toolkit. I unrooted and rooted using stock injected but the problem persisted. I had to return the phone so I unrooted and used triangle away to get my phone back to normal. I did a hard reset and had the problem one more time. for the 5 days it took my new phone to arrive i didn't have the problem more than once. I also remember having a problem with my printer saying it was connected but i couldn't print from it until i reset the router. I think the time my phone started working find again was when I reset my router but i didn't put all this together until recently. I noticed that the only time I had the problem was when I had wifi and BT connected and went into airplane mode. then when I came out it didn't always connect back like it use to. I also noticed it when i had wifi connected and left my house. the wifi looked like it was still connected even though i was more than a mile form home. So maybe it had to do with my router connection and a bug where the phone thought it was still connected. if anyone is having this problem try resetting your router and see if the issues persists.

flexte said:
My problem started after I rooted using toolkit. I unrooted and rooted using stock injected but the problem persisted. I had to return the phone so I unrooted and used triangle away to get my phone back to normal. I did a hard reset and had the problem one more time. for the 5 days it took my new phone to arrive i didn't have the problem more than once. I also remember having a problem with my printer saying it was connected but i couldn't print from it until i reset the router. I think the time my phone started working find again was when I reset my router but i didn't put all this together until recently. I noticed that the only time I had the problem was when I had wifi and BT connected and went into airplane mode. then when I came out it didn't always connect back like it use to. I also noticed it when i had wifi connected and left my house. the wifi looked like it was still connected even though i was more than a mile form home. So maybe it had to do with my router connection and a bug where the phone thought it was still connected. if anyone is having this problem try resetting your router and see if the issues persists.
Click to expand...
Click to collapse
I used the toolkit in the original development thread, could it be the method you used for rooting caused that?
Is the problem there if you connect to Wi-Fi on a different router, like someone else's
Sent from my SGH-T889 using xda premium

OmmNomNom said:
I used the toolkit in the original development thread, could it be the method you used for rooting caused that?
Is the problem there if you connect to Wi-Fi on a different router, like someone else's
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
I never tried connecting to another router. My problem seemed to be that it never properly disconnected from my router so when I came out of airplane mode of couldn't connect. Also bluetooth was stuck.

p600 wifi turning off on of on off on....

Ok this started last night, tablet has been working flawlessly for the last 6 months or more.
What happened was, I wasn't able to use the Internet. Just wasn't working. And every 20 seconds or so it would flash up at the bottom of the screen "connected to (my router)".
So I turned wifi off and on, which usually fixed connection issues, but didn't help. I also restarted router, even though my computer and my phone isn't having any issues.
So then I went to the wifi settings screen to see if there was any way to reset networks. What I saw was this:
If i turn wifi toggle on and watch the screen, it would scan for networks, find the list... Couple seconds pass... Then the toggle would switch itself off and back on! And then it would start looking and finding networks again, and then off and on, and etc etc.
I have tried a factory reset and cache reset.
I have also downloaded the 4.4.2 stock rom and installed using odin for a totally new install.
Still does it.
Any suggestions? Seems very strange. It's under warranty but it seems like an odd hardware fault, seems more like software but I dunno.
Help me xda, you're my only hope.

I've been searching the Internet all day trying to find someone else havin this problem... But I seem to be the only one. And noone seems to have any suggestions.
At the moment I'm having to consider a warranty dispute, but that means however many days/weeks without the tablet which I use on a daily basis.
Not ideal Samsung.

nirurin said:
I've been searching the Internet all day trying to find someone else havin this problem... But I seem to be the only one. And noone seems to have any suggestions.
At the moment I'm having to consider a warranty dispute, but that means however many days/weeks without the tablet which I use on a daily basis.
Not ideal Samsung.
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Hey. I had the EXACT same problem. Even made a video of it and showed it to the service point personell. Turning on off on again and again, it also displays in the settings the switch just switches itself without any action of mine. It was a hardware defect. send it in and get a new one, better than being annoyed by it. Mine did it on a 5-10sec interval length...

Keks1234 said:
Hey. I had the EXACT same problem. Even made a video of it and showed it to the service point personell. Turning on off on again and again, it also displays in the settings the switch just switches itself without any action of mine. It was a hardware defect. send it in and get a new one, better than being annoyed by it. Mine did it on a 5-10sec interval length...
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Yeh mines probably every 5-10 seconds...
So this is definitly a hardware fault? In which case I'll have to get in touch with john lewis and hope they will do an exchange in store. If it involves having to send it off to samsung and waiting for it..
Anyway thanks for replying to the question, shame it wasn't better news haha!

nirurin said:
Yeh mines probably every 5-10 seconds...
So this is definitly a hardware fault? In which case I'll have to get in touch with john lewis and hope they will do an exchange in store. If it involves having to send it off to samsung and waiting for it..
Anyway thanks for replying to the question, shame it wasn't better news haha!
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yeah sorry to be the one to tell you this is a faulty device but it seems like this unit ain't free of errors and there quality control is somewhat sketchy.
Which android version are you running? I am asking because I run kitkat and also have relatively ****ty battery life. I use it for university so I have the screen on and write notes during lectures. Usually it lasted 7-8hours but for about a week or two it now only lasts 4-5 hours of screen time which is really ****ty.
I read somewhere that this might be a motherboard issue and if it is it might be somewhat corellated to our wifi problem. In my case they replaced the wifi module and gave me back my "old" device but this is having bad battery life so I am thinking about sending it in (again). I did however root so I would have to make use of the warranty provided by the seller, not samsung itself, since my knox is tripped.
(in Germany the sellers also must provide 6months - 2 years of warranty and there was a judgement in Europe that rooting must not have any influence on wether your device still is under warranty or not. sadly this only applies to the warranty provided by the seller, not the manufacturer)

Is your BT on and are you connected to a 2.4 GHZ network?
If so, turn off BT
I get random WiFi disconnects and reconnects from 2.4 GHZ networks when BT is on but not connected. Though, Ive never noticed the wifi switch going off and on.

I am running 4.4.2 or whatever, kitkat anyway.
Bluetooth is off, I never use it on my tablet. I dunno what network type I'm running, might be N or might be B/G, but whatever it is it what it has been for months as I havent changed any router settings lately.
I have restarted the router twice already in case this was a network problem, but the network wouldn't cause the wifi to toggle off and on, it would just cause disconnects etc. Least I assume so. I may try this just in case but like I said the network type hasn't changed lately

John Lewis are saying they won't exchange it, it will have to be sent off to Samsung for "repair". Meaning I'll probably get sent back a refurbished second hand one with a dodgy light bleed screen, as I expect they have hundreds of those lying around now.
Oh and it'll be up to 28 days. For a premium and expensive device that's less than 6 months old this just isn't good enough.

nirurin said:
John Lewis are saying they won't exchange it, it will have to be sent off to Samsung for "repair". Meaning I'll probably get sent back a refurbished second hand one with a dodgy light bleed screen, as I expect they have hundreds of those lying around now.
Oh and it'll be up to 28 days. For a premium and expensive device that's less than 6 months old this just isn't good enough.
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I had mine replaced as well but dont remember wether I got a new one or just my old one repaired... should have written down the IMEI I guess :-/
you're from Bristol, don't the EU rights apply there? If so your retailer should be obliged to replace or repair the device.
http://forum.xda-developers.com/showthread.php?t=1998801
Anyways my replacement was done through Samsung and it took 6 days. But then again idk differences between UK and Germany...