I was using my prime with the keyboard attached yesterday morning while running CM10_9/2 version nightly. Now I know WiFi signal strength has never been real strong for the prime in general, in fact it sucks, but I was happy that I could use it all over my home. That all changed yesterday morning when the signal dropped completely. I thought it was just my router so I reset it and checked my phone and PS3 to see how there signal was. Both seemed fine and normal, but not so on the Tablet. I could not get WiFi to reconnect. I was so confused so I restored a couple older ROMs and even flashed brand new ones to see if it was somehow a kernel issue, not so much. Dumbfounded I went in the room that has the router in it with the tablet, not sure why, but I did. Low and behold I had a signal while standing right next to the router. Once I leave that room I cannot get a signal. So I thought I would bring it to my work today to test signal strength with a router a few cubes down to make sure it wasn't my home network. Well the results were the same thing. I can connect to it, but the signal is horrible! Is there anything else I should try? Is there any way to get this fixed under warranty with an unlocked bootloader as all I was doing was reading something online? Any other suggestions you guys might haver? I truly appreciate the forums for times like these. Thanks in advance!
gti3358 said:
I was using my prime with the keyboard attached yesterday morning while running CM10_9/2 version nightly. Now I know WiFi signal strength has never been real strong for the prime in general, in fact it sucks, but I was happy that I could use it all over my home. That all changed yesterday morning when the signal dropped completely. I thought it was just my router so I reset it and checked my phone and PS3 to see how there signal was. Both seemed fine and normal, but not so on the Tablet. I could not get WiFi to reconnect. I was so confused so I restored a couple older ROMs and even flashed brand new ones to see if it was somehow a kernel issue, not so much. Dumbfounded I went in the room that has the router in it with the tablet, not sure why, but I did. Low and behold I had a signal while standing right next to the router. Once I leave that room I cannot get a signal. So I thought I would bring it to my work today to test signal strength with a router a few cubes down to make sure it wasn't my home network. Well the results were the same thing. I can connect to it, but the signal is horrible! Is there anything else I should try? Is there any way to get this fixed under warranty with an unlocked bootloader as all I was doing was reading something online? Any other suggestions you guys might haver? I truly appreciate the forums for times like these. Thanks in advance!
Click to expand...
Click to collapse
Have you tried putting pressure on the wifi connectors to the right of the front camera? It seems that fixed some problems for some users.
pretty sure rma could fix it, not sure they would do it for free since you are unlocked. It is probably a physical problem more so than a software one.
Thanks for the responses, another kicker I forgot to mention and it's kind of a big one is this tablet is 8 months old. I bought it is January! Crazy how this just happened!
funfair said:
Have you tried putting pressure on the wifi connectors to the right of the front camera? It seems that fixed some problems for some users.
Click to expand...
Click to collapse
yes, and nothing happened signal wise.
gti3358 said:
Thanks for the responses, another kicker I forgot to mention and it's kind of a big one is this tablet is 8 months old. I bought it is January! Crazy how this just happened!
yes, and nothing happened signal wise.
Click to expand...
Click to collapse
I had a strange thing when I visited family recently. My tablet works all around my house no problem but in another house unless I was in the same room it didn't work.
I ran a wifi scanner and found that everyone around her was on sky and all using channel 1. I changed her router to use channel 11 and instantly had connection all around her house. All sky routers are set to auto yet use channel 1 as default.
Try using wifi analyzer https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5mYXJwcm9jLndpZmkuYW5hbHl6ZXIiXQ.. to see what's being used around you and changing your router to get away from others.
It might not work but worth a go because I couldn't believe the difference when I switched channels.
Related
Hey guys,
I do got some issues with the WIFI reception on my gtab. The signal is always very low and weak. I tried every rom, even did an NVFlash to go stock but that didnt help either. I did put carbon stickers on the whole device though, can that have any impact? Are there more people with this problem and if so have you got stickers on the device? Please let me know, thanks in adance!!
Peace!
After submitting this post my connection dropped which it also does more often.
Anyone has a clue?
3sade,
I actually had this same problem about 2 weeks ago. I would be directly over my WiFi AP and had a weak signal (2bars) no matter what ROM I used. I called up GTab support (310) 228-4000 and opened a RMA with them. Despite what's I've read in other posts, support was very nice and willing to help for me. They will tell you that you'll have to remove the carbon stick from the device and restore it to the stock ROM. That part sucks but when I got my gtab back (14 business day wait), it is in better working condition then when I sent it to them (the screen is more responsive, seems less sluggish with the stock ROM).
I don't know if this is what you were hoping to hear, but I thought I would pass it along.
I'm sorry to reply to an old thread but I've just recieved a hannspad sn10t1 which I believe has similar if not the same hardware as the GTab. I'm having the same issue with wifi connection, if I actually touch it to the router then I might get 3 bars! I definately cant leave the room and still be connected.
Have I got a faulty unit or is there a software or settings fix? By the sound of this its a hardware fault but I'd rather try and find a fix first.
htc-rocks said:
I'm sorry to reply to an old thread but I've just recieved a hannspad sn10t1 which I believe has similar if not the same hardware as the GTab. I'm having the same issue with wifi connection, if I actually touch it to the router then I might get 3 bars! I definately cant leave the room and still be connected.
Have I got a faulty unit or is there a software or settings fix? By the sound of this its a hardware fault but I'd rather try and find a fix first.
Click to expand...
Click to collapse
Most definitely a hardware issue. It sound like your antenna is not even connected at all. I would contact the manufacture for a RMA. If not crack it open and find the antenna
Hey guys,
I hope someone can help me or give me some good advices.
I have a wifi problem. Before the GS2 I had the HTC HD2 and never had any big problems with wifi. No matter if I was home or in the uni, it was always great.
With the GS2 though, its a wonder to get a good wifi signal.
I know when I say now, that I just have 1 line at the wifi bar you guys gonna kill me!!
I don't care about if it's 1 line or 2, the problem is, that this 1 line I lose everytime I wanna use the net. I never had this problem before. Also I can tell, that this problem I have everywhere I am. In the uni I have 1-2 lines, at my favourite cafe I have 0-1 lines just like at home. This is driving me crazy. I can't use the net at all like this. I don't have any other problems, not at all, just this wifi problem. I'm not sure if this pictures I took are useful, but I tried something out.
I did the speed test with the speedtest.net app in 4 different ways.
1. Picture: I hold the phone the normal way.
2. Picture: I hold the phone normal but raised my arm in the air.
3. Picture: I turned the phone around and hold it that way.
4. Picture: I turned the phone around and raised my arm in the air.
I hope someone can help me or give me any advices.
I love this phone. It's the best phone I have ever had so far, but I hate the bad wifi signal...
Same here
I used to have signal with other devices, yet with Galaxy S II, I get very poor signal!
I haven't noticed this with mine, I find the reception wifi and otherwise very good. Have you flashed a new modem? Maybe that's the issue?
Well I flashed alot so far, but always the same thing. Always bad signal. Now I'm back to stock rom with root, nothing else.
I have no problems with my wifi connection...
the top one is from the same room as the router, the bottom one is from the furthest I can get from the router (about 10m away, 2 walls and the kitchen in between). Speeds are lower than what I can get on the netbook (25Mbps and 16Mbps respectively) but that's not unexpected
I also had no issues when I used the pub's wifi a few days ago
Sent from my GT-I9100 using XDA App
Can this be a hardware problem? Or maybe the software? The ones without any problem can you give me information about the rom and modem etc. you use?
I'm on stock KE7, baseband is KE4 (sim-free UK phone). No rooted yet cos after years and years of WinMo, I need to get my head round all that Android malarkey... so confusing when it's not something you're familiar with
Does anyone else have a issue with their S Tab, only getting weak wifi signal, even from a wireless router your are right next to?
I have a wireless router in my living room, and everything else i have to include my other tab and laptop get full bars for the wifi, but my S Tab only gets about 3 to 4 out of 5.
Just curious as to if this is just a flaw in the Tab, or maybe mine has an issue i should have looked at for repair, or replacement.
i get a full signal on the home wifi and using my mobile as a hotspot, not sure why yours is getting a weak signal.
Im not sure either, it still works fine, seems to run the browser, downloads/updates fast still, maybe the little icon at the bottom by the clock is inaccurate.
I feel it is better than on my SE XPlay
Sent from my Sony Tablet S using Tapatalk
I have had a bit of the same issue. When I first got it it seemed that it picked up my home Wifi last above all the others around me.
Once it did finally find it it only showed a weak singal, after I put in my password it jumped up to full strength. this has happened to every location I went to. Once i do connect it works great (on a side note people have complained that my wireless internet sucks at my home when they tried to connect with there laptops)
I seem to have a similar issue. Works fairly fast but looks like I only have 2 bars.
Yeah I have noticed this and using wifi manager the signal goes up and down but seems fine on my arc....
Sent from my Sony Tablet S using Tapatalk
I don't have an issue with the signal but it takes forever for it to connect to my AP. It's taking at least 30 seconds to make a connection.
bimbot said:
I don't have an issue with the signal but it takes forever for it to connect to my AP. It's taking at least 30 seconds to make a connection.
Click to expand...
Click to collapse
Yes, I have noticed this when I unlock the device as well.
sony tablet s wifi issue
Hi all,
after weeks of study here is what i found out:
- wifi issue is not a hard ware issue, it is simply the software.
- wifi issue occurs only with certain routers with both N & G channels , Especially Netgear and BT.
- Wifi manger app makes it better and less annoying, issue still there but less occurring. try different channels.
- Tablet S for some reason does not like the channels used by certain Routers.
- do not bother with wifi lock app, does not do the job and steals ur battery.
- after weeks of trial, tablet is just great, but needs attention from Google.
SO
My friend's wife works for Google, when asked for the favor of the insider , engineers in Google said, first stage is to roll out Xperia release 5 to try and fix problem, then both S and Xperia will get Jelly bean with a definite fix. Testing as we speak.
all I can do now is get a good router and hope for the best.
I too have a problem with my new-ish Sony Tablet S (which I wish I never went to 4.0.3 r5). Sitting anywhere in my house I get 4 or 5 bars - I have a great DLINK Router and a repeater in the other end of the house. Both on the same channel family and get full blast wireless all over the house.
My problem is (the router is locked into N only mode as everything in the house is N) - even with 5 bars, the NETWORK information from the tablet's info panel says I am at 65MB/s. Why so slow? My older than the tablet laptop with built in WiFi get 150MB/s, and the router is capable of 300MB/s (dual channel router).
Can anyone explain this?
Also if anyone can direct me to the steps and files to get my tablet back to the 4.0.3 (pre R5 version), I would be ever so happy. I hate all the new additions - none of them good that R gave. My biggest gripe is the removal of the DLNA app that worked great with my MEDIA Server (windows) and streamed my .M4V ripped DVD collection, that my HTPC also uses, flawlessly. The WALKMAN and MOVIES app in the R5 software - for use of a better word - S U X !!!
I already called SONY to find out how to REVERT and of course got the answer, YOU CAN'T. You would think that with over $20,000 worth of SONY equipment purchased in the last 8 years they would help.
Thanks,
bearhntr
I recently purchased the 16gb Sony Tablet S and am contemplating on whether or not to return it by the 30 day window due to sporadic wifi connection at my apartment. The issue is not as much the reobtaining wifi after the screen unlocks, as it is the general holding of the wifi connection when the screen is on.
I've isolated the problem to my specific router, as it works PERFECTLY at my GF's apt and my parent's house. Always connects right away and stays connected. However at my apt it doesn't always connect right way and have to manually turn the wifi off and on again, and sometimes have to manually hit connect from the wifi screen. When it finally obtains IP address it will connect, but most of the time for only a short period (like 20-30 seconds) before the wifi signal on bottom right just disappears. Then I have to toggle the wifi on and off again and try again. Very annoying. Sometimes it will connect though, and the wifi holds up like it should.
Here are the fixes I've tried so far:
* Reset and Factory Rest device
* Forget/Reconnect to network from device
* Update Router Firmware
* Configure Router - g/n mode and n mode from b/g/n
* Set Router Channel from auto to 1,6 and 11.
* Wifi Lock App (doesn't work and drains battery)
Personally, I feel like the tablet itself has an inferior wireless radio. Compared side by side to my other wifi devices, it has noticeably less signal at the router and diminishes quicker the farther away you go. Now, this doesn't really bother me as I'm usually always near my router. However, when I was scanning all the wifi networks around me (in cmd: netsh wlan show networks mode=bssid) I found over 30 networks around me all using the full channel spectrum. I've tried every channel on my router, but 11 seems the best.
Would a crowded wifi area affect the tablet? But again, my laptop, 2 phones, and PS3 connect at every channel with no problems at my apt. At my parent's house and GF's apt there are only 1 or 2 other available networks that could also be on my channel. That's the only thing I can think of.
I just don't understand why only the tablet is having wifi problems.
I have about a week left to return it, and would like to keep the tablet, but running out of patience. Next, I think I will try using MAC address and see if that works.
Any help would be appreciated!
Try this!
I had the same issue.
I solved the problem
1 - turn off wifi.
2- in accounts - turn off "auto connect"
3- turn on wifi ( test if work )
4- reconect the accounts
too simple .. but works , try it.
Would a crowded wifi area affect the tablet? But again, my laptop, 2 phones, and PS3 connect at every channel with no problems at my apt.
Click to expand...
Click to collapse
Thats certaintly not the problem since i have so many devices logged in on my network, and not having the same problems,
The Wi-Fi on Sony tablet has known issue's like loosing connection when screen goes standby, even if you checked this in settings never to shut down.
The steps in the post above can be the sollution, and if not, sony will make somehow a repair or a dev would fix this. goodluck.
setterose said:
I had the same issue.
I solved the problem
1 - turn off wifi.
2- in accounts - turn off "auto connect"
3- turn on wifi ( test if work )
4- reconect the accounts
too simple .. but works , try it.
Click to expand...
Click to collapse
Thanks. I tried that sequence and it seemed to work for a little bit, but then the problems reoccurred.
Again, the problem is not just that the wifi doesn't pick up right away after standby, but also, and more importantly, it looses wifi BEFORE the screen goes out while I'm using it, repeatedly.
Its very annoying and only happens at my apt and not at other networks. No other device on my network has this problem.
Nobody else has had this problem before?
I remember from older posts that tablet s has problem with certain brand routers. What routers are used in your places.
Kermit33 said:
I remember from older posts that tablet s has problem with certain brand routers. What routers are used in your places.
Click to expand...
Click to collapse
Its a ZyXel brand router that doesn't work. I'm pretty sure the one's that do work are both Linksys. The ZyXel router is probably a cheap one because it came bundled in a promotion from my ISP.
I guess I could try another n router, but still find it strange that all my other wifi devices are fine with the current router.
Wifi Signal
Sony is not as reliable as it used to be... My Tablet S keeps loosing WiFi signal, and the solution I found was to turn off and back on the WiFi. This fix the issue.
However another very annoying problem is that very often I need to hard reset the tablet as it locks the screen with no other way to recover it. Shame on Sony. An the annoying side flash light is ridiculous. I used to have an A100 that aside any design issues, worked perfectly never had any operational issue with it. Should have upgraded to a A500...
What worked for me.
I bought a Sony S as a birthday present for my wife. That was yesterday and today she went to work and left me to set it up for her.
I have a Cisco E3200 router. The tablet could see my router and connect to it but would drop the connection after 5 seconds.
Well, that was the first hour and a half of my day.
Finally, with nothing else to try, I set up a guest account on the router. The tablet found it and connected to it on the first attempt and has been connected now for over four hours including multiple restarts.
I have no idea why this worked. I just know that it did.
Clive.
Same issues here when docking tablet sometimes, but my work around is to turn WiFi off, and hit Fast Reboot ( app by Great Bytes Software) then turn WiFi back on. Fast Reboot seems to do a soft reboot on apps and system and it only takes a few seconds.
Hope this helps!
Maui
Sent from my Sony Tablet S using xda app-developers app
Wifi Issues
I bought the 32G version from Woot recently. The WiFi reception is awful. I am on my second unit same thing.
4 feet from Router (on 2nd floor), 3 bars out of 4. 15 feet goes to 2. Downstairs goes to 1 bar 1MBS. And drops like a hot potato. Sony has sent a RMA for repair. Being this is my second unit with same issue, I doubt there is a fix.
I use a LAptop, netbook, android phone on the same router. No issues. They all work well, even in the basement!
Updated to 4.0 on my original unit, no change.
Just ranting here, hoping for a surprise fix. Other than that Mrs Lincoln how was the play? I love the tablet otherwise. Will probably throw and a spare router downstairs or feed it off my 4G phone. Now that really sucks..LOL
Anyone else
4.03 can solve this problem?
[email protected] said:
4.03 can solve this problem?
Click to expand...
Click to collapse
4.03 did not make a difference.
**EDITED: pls ignore this post. irrelevant.
Sent from my Sony Tablet S using xda app-developers app
sony tablet s wifi issue
Hi all,
after weeks of study here is what i found out:
- wifi issue is not a hard ware issue, it is simply the software.
- wifi issue occurs only with certain routers with both N & G channels , Especially Netgear and BT.
- Wifi manger app makes it better and less annoying, issue still there but less occurring. try different channels.
- Tablet S for some reason does not like the channels used by certain Routers.
- do not bother with wifi lock app, does not do the job and steals ur battery.
- after weeks of trial, tablet is just great, but needs attention from Google.
SO
My friend's wife works for Google, when asked for the favor of the insider , engineers in Google said, first stage is to roll out Xperia release 5 to try and fix problem, then both S and Xperia will get Jelly bean with a definite fix. Testing as we speak.
all I can do now is get a good router and hope for the best.
Fatthyrahim said:
Hi all,
SO
My friend's wife works for Google, when asked for the favor of the insider , engineers in Google said, first stage is to roll out Xperia release 5 to try and fix problem, then both S and Xperia will get Jelly bean with a definite fix. Testing as we speak.
Click to expand...
Click to collapse
Straight from the horse's mouth??? Tablet S will infact be getting Jelly Bean???
Fatthyrahim said:
all I can do now is get a good router and hope for the best.
Click to expand...
Click to collapse
what do you think about sitecom routers?
WIFI More
Fatthyrahim said:
Hi all,
after weeks of study here is what i found out:
- wifi issue is not a hard ware issue, it is simply the software.
- wifi issue occurs only with certain routers with both N & G channels , Especially Netgear and BT.
- Wifi manger app makes it better and less annoying, issue still there but less occurring. try different channels.
- Tablet S for some reason does not like the channels used by certain Routers.
- do not bother with wifi lock app, does not do the job and steals ur battery.
- after weeks of trial, tablet is just great, but needs attention from Google.
SO
My friend's wife works for Google, when asked for the favor of the insider , engineers in Google said, first stage is to roll out Xperia release 5 to try and fix problem, then both S and Xperia will get Jelly bean with a definite fix. Testing as we speak.
all I can do now is get a good router and hope for the best.
Click to expand...
Click to collapse
I have tried 3 different Routers.
Verizon/ActionTecMi424
CheckPoint Z-100G
Linksys WRT54GL
No change no difference.
I finally installed another router on the other floor. Now it works in entire house, but have to change router connections if I move to a different floor.
The big question here I think is:
Is every Tablet S this way or do we have some bad samples? Software or Hardware. Sony has given me and RMA # to return for repair. I am hesitant to do that. If there is no fix or all units are this way.
I am not 100% sure but from my own testing I found it working 90% of the time everywhere else, here is how I tested:
home netgear, does not hold wifi , have to refresh page all the time to browse internet.
Work ( different router not sure what type yet) works just like a dream, fast no wifi drops no refreshes needed.
took it to most free wifi spots, not a problem.
friends house BT, Same issue again.
Wifi manager made it a bit better yes ( have to test now on channels 12 , 13 or 15 , wifi lock app does not work.
I hate to get a different router to get same issue at the end. however different posts elsewhere suggested setting router to N on and G off channels testing each time you make a change, on tablet set to manual ( have not done this bit yet).
It's not like we are all being picky here with Sony, we like the tablet itself and we bought it with a lot of money, we want to be able to browse the internet download things without getting our livers and kidneys enlarged.
more to follow , I am really hoping to be able to get my friend's wife update as she told us GOOGLE IS VERY AWARE OF THE ISSUE.
air16 said:
what do you think about sitecom routers?
Click to expand...
Click to collapse
Bought Sitecom Router last friday, I can say that now my tablet holds wifi signal very well... :good:
WIFI Issue fixed
All,
there was an update last Thursday that fixed the wifi issue, I am not really sure what but my tablet s now holds and keeps wifi everywhere.
I had issued before with netgear and bt routers and after last Thursday it was just fine, i need to review the recent updates done and Let you all know.
I tried it everywhere and works perfect, download speed is perfect , not one drop of wifi so far.
I assume either Sony or Google did something here as it was getting an update last Thursday that lasted about 10 minutes, could not figure out what was that update yet.
My Prime has had decent wifi all along. This morning however I'm having serious issues with it. It shows as being connected to wifi but there is no data transferring. If I do a hard reset I can then get into a browser and access 1 web page. After that it no longer transfers any data and I eventually get a web page not found error message. Same thing for email. I get email on the initial check it does upon booting up but then nothing else. Google Play store does the same thing as well.
I tried doing a factory reset and multiple hard resets but the problem is persisting. This has obviously rendered by Prime completely useless. Anyone else experienced this? Anyone have any ideas?
thanks,
Jeff
all at the same router?
whycali said:
all at the same router?
Click to expand...
Click to collapse
Yes.....and it was the router. I had ruled out the router because my Iphone was showing as being on wifi and it was working fine. But when I went to use my laptop I had the same problem. Reset the router and all is good. Not sure why my Iphone was unaffected but at least it's fixed.
Jeff
try changing wifi security level
Jeff1192 said:
My Prime has had decent wifi all along. This morning however I'm having serious issues with it. It shows as being connected to wifi but there is no data transferring. If I do a hard reset I can then get into a browser and access 1 web page. After that it no longer transfers any data and I eventually get a web page not found error message. Same thing for email. I get email on the initial check it does upon booting up but then nothing else. Google Play store does the same thing as well.
I tried doing a factory reset and multiple hard resets but the problem is persisting. This has obviously rendered by Prime completely useless. Anyone else experienced this? Anyone have any ideas?
thanks,
Jeff
Click to expand...
Click to collapse
I had a wierd issue to and read in a post to change the wifi security level. Initially mine was on WEP, then i started to have issues a few months later. it just wouldnt stay connected (kind of like yours). I changed it to wpa2 and so far it has had a steady connection. Wouldnt hurt to give that a shot.
aadeleon said:
I had a wierd issue to and read in a post to change the wifi security level. Initially mine was on WEP, then i started to have issues a few months later. it just wouldnt stay connected (kind of like yours). I changed it to wpa2 and so far it has had a steady connection. Wouldnt hurt to give that a shot.
Click to expand...
Click to collapse
I'm already using WPA2 and have had NO problems at all until yesterday. However, since my laptop was also having problems I would say that it was my router and not the Prime that was the problem. Hopefully it doesn't happen again.
On a side note, I had been planning on doing a factory reset for a while and yesterday gave me my excuse to do it. I hadn't done one since I purchased my Prime. It has made a big difference in performance and reducing the number of app crashes. Its a bit of work but definitely worth it.
Jeff
Just wanted to jump in here to give y'all a pro-tip.
You said your wireless was working fine until just the other day when it started to give you problems? Well, the problem may lie in the channel your Wifi is broadcasting on. You may have had a neighbor just move in/just get wireless, they may have their router on "auto" and it changed channels or your router may have changed channels. I would suggest downloading Wifi Analyzer and taking a look at the wireless signals around you. You can then adjust your routers Wifi channel accordingly. You will want to stay on channel 1, 6, or 11 ideally. Also it is good practice to reboot your router occasionally.
Hope this helps. :good:
Scumbag Inc. said:
Just wanted to jump in here to give y'all a pro-tip.
You said your wireless was working fine until just the other day when it started to give you problems? Well, the problem may lie in the channel your Wifi is broadcasting on. You may have had a neighbor just move in/just get wireless, they may have their router on "auto" and it changed channels or your router may have changed channels. I would suggest downloading Wifi Analyzer and taking a look at the wireless signals around you. You can then adjust your routers Wifi channel accordingly. You will want to stay on channel 1, 6, or 11 ideally. Also it is good practice to reboot your router occasionally.
Hope this helps. :good:
Click to expand...
Click to collapse
Second that, except that when I walked around the house with WiFi Analyzer running on my phone I found that the people on either side of me were on Channel 1 both of my routers were on Channel 1 too. So I made one of mine 6 and the other 11. This is also something you have to re-check every once in a while as the neighbors might change theirs.
One other thing I've noticed with my Prime is that it seems to work a lot better if I set the router for N Only or G only - not mixed mode.