yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] webad_13:
Thanks, I can see that there is no impact on the performance of it and the signal is the same for me as before the fix.

Did you have a way to test this out in terms of the temperature that is created by wifi? I see that you pretty much answered it in one of the first posts but I am just wondering if it is more based on presumptions or you were able to get some data from the chip. I cannot monitor the temp via software, not sure if there is a sensor near by that could tell me more about it - so the only way would be to get some readings directly from the mb and the chip.
[Nexus 7 General] Linophryne:
I used a piece of black electrical tape. Its been on it for over a day and my screen flicker and horizontal bar flicks have not reappeared.
[Nexus 7 General] potentiality:
OK I have VISUAL proof that this does DECREASE your wireless strength. Which since the flickering happens at poor signals. Your just trading one problem for another.

N only network. Red One

First Portion: Tape on.

Mid Portion: Back Open

Last Portion: Tape removed, back on.

So I call it people without supposedly reduced range really not having poor signals to begin with.

THIS WILL REDUCE YOUR RANGE. Period. Especially on pure N networks. The others shown were G.

Time for a refund. Third unit same problem.

Flicker did seem to go away for short time attempted. But like I said your trading one problem for another.
[Nexus 7 General] masterg0g0:
Thanks, but this fix is really ok for me. Since I am not in the US, I cannot be returning my Nexus 7 any time sooner. In the future, let's see if my unit degrades then will claim warranty.
[Nexus 7 General] Jon565G:
Same here with the tape, but went over multiple times with it. I thought it worked at first, but then noticed some flicker when I went downstairs (low wifi point). Half and half to replace it, but it seems even some of the new ones flicker..... Think I'll live with it for a few months, until I can be sure that I get a good one :)

Btw, if anyone is having problems getting the back cover off, I used a credit card after prising it open enough with my fingernails.

Edit: I should add that the flicker is drastically reduced, and can only be noticed most of the time if I'm actually staring at it.
[Nexus 7 General] adrianpang:
I did the modification as suggested after noticing that the screen flickers when WiFi is turned on with poor signal strength. I can confirm that the sticky tape modification eliminated the screen flicker that was previously apparent. I did not notice a loss in signal strength after the modification was done. I will monitor it for the next few days to verify that the screen flickering issue is indeed eliminated and that it has no impact on the wireless performance whatsoever.
[Nexus 7 General] guinnes.s:
i just hope a firmware update could sort the problem.
[Nexus 7 General] qwertylesh:
considering how other teg3 devices made by ASUS have faired with "Firmware fixes", I say don't get your hopes up one bit.

seriously, a line of flicker? who cares... I won't be refunding mine over it, I'll be stopping future OTAs for mine though..
[Nexus 7 General] Raja101:
Will doing this void the warranty?
[Nexus 7 General] Jon565G:
Yeah, but as long as you don't damage anything, I highly doubt that they will be able to tell you opened it....
[Nexus 7 General] potentiality:
LOL

This has nothing to do with a line of flicker. Did you even bother to read the symptoms before hitting the reply button?

This has nothing to do with the tegra. This is the backlight.

::::::::::

This mod DOES reduce range. I have proof from a screenshot on previous page from wifi analyzer. Maybe most won't notice it, but the signal results dont lie. If your signal us already at the edge especially, just return the device unless you like disconnects.
[Nexus 7 General] Raja101:
Ah good :) Because I do plan on returning my nexus in a few months to Asus. Hopefully by then they will have sorted out these problems.
[Nexus 7 General] dirtyhamster73:
It's really easy, and done slowly and with the right tool you wont damage anything. It pops right off and clicks right back on, like a battery cover on a phone.
[Nexus 7 General] Jay Aristide:
No. I had creak and screen rise when I got my n7, called Google to ask them if my intended fixes (a tiny piece of paper inserted where it was creaking (means taking off the back) and placing a heavy book on the lifted bezel while heating the device to around 110f) would void my warranty, and they told me the back was intended to be easily removed, and that so long as I didn't actually modify the in-place hardware, I was - in fact - in no danger of voiding my warranty :) I've had no issues with my n7 whatsoever since applying those homegrown fixes, BTW.

It's worth mentioning that the tech I talked to commended me for my ingenuity (wasn't mine, got the ideas from AF) and said "way to avoid an unnecessary RMA" :)
[Nexus 7 General] boominski:
Seems to be working ok here too.

Easy enough to open the back, by starting at one corner with a thin knife and working around until it just pops off.

Wasn't sure from the pic whether to cover one of the small metal plates or both, so did both just to be sure.

If this is going to cause my device to explode or develop a penchant for black and white French B movies then could someone let me know?

Other than that, it all looks fine. Thanks!
[Nexus 7 General] tanmayk:
Ok so i just did it! And changed the brightness setting to auto again, just hope it works and does so well cause i have the tab here in India and i am not getting a chance anytime soon to return the tab!!
[Nexus 7 General] Raja101:
Boo Yah ;)

After prying the case open with my compass tip and applying the tape my flicker is GONE.

Thanks To the OP
[Nexus 7 General] webad_13:
Unfortunately it appears to reduce the range slightly. And for me the flicker came back after a while, maybe I didn't do it properly. In any case got my third device, no flicker on it
[Nexus 7 General] mhaedo:
My flicker persists after following these instructions. It flickers with the back on, off, or wifi ground taped over. This "fix" might help slightly, but it is hard to tell. I have had three devices and the one I'm trying to fix has the worst flicker yet, so maybe it would have had more of an effect on a device that didn't have as bad a flicker. Time for another RMA.
[Nexus 7 General] Jay Aristide:
There are half a dozen or so extremely stable custom kernels out there that fix screen flicker..
[Nexus 7 General] Mungulz:
I've been using Trinity kernel and still have flicker, not sure if there's been an effort to fix it in this kernel though.

Admittedly I've spent way less time researching kernels and roms than I should have for this device :p

Just can't catch that android bug again, used to change roms on my phone every day :(
[Nexus 7 General] Jay Aristide:
I find a ROM/kernel that works for me and stick with it :) Try _motley's and see if that clears it up
[Nexus 7 General] Rahabhim:
I´ve disabled auto-brightness so I have no flickering, but in the future I will try this.

Thank you
[Nexus 7 General] mhaedo:
Perhaps for some..

I have seen people claim Lux fixed (or successfully masked) their issue. Others say to change Wifi channel, turn off auto brightness, put tape over wlan gnd, flash custom kernel, etc.

I have tried all of the proposed "fixes" that I have found, and none have worked. Can you provide links to the kernels you are referring to? None that I have tried had any effect.
[Nexus 7 General] Kayak83:
Kernels don't fix anything for me. Might try scotch tape but will probably send it back and call it a day. My last one had screen lift.
[Nexus 7 General] arcisbre:
Or you could just buy Lux Auto Brightness which fixes the screen flicker..

Edit: lol saw someone already posted this comment above me
[Nexus 7 General] Kayak83:
Took mine back this morning to the same store. The manager there said he's sending all of his stock that he gets for the next few weeks back until they fix what's going on with the quality control. He said all of his N7's are being returned with defects. This was my 2nd one. Back to my Sammy 10.1 for now.

It's too bad, because the N7 has so much potential. It's not materials, but manufacturing/design. VERY easy fixes, too. I'm just surprised I never read about this stuff in reviews or around the web before purchasing it.
[Nexus 7 General] Jay Aristide:
Taking my 16gb back tomorrow, because the screen keeps becoming unresponsive. It's a 16gb c60, so hopefully the replacement will be a c70 or c80

My 8gb c60 (that I gave to my brother) is still rock solid, though
[Nexus 7 General] Valkyrie743:
I have a c50 8gb running jays buttery smoothness tweak :) and with the motley or without it I still get flicker. Its not as bad as others shown in YouTube videos but its annoying. I also have slight screen lift and if k press it you can feel it loose (click) like the tape is not holding the display.

I bough my nexus probably 3 weeks ago not sure if Google will replace it. I really don't want to go though Asus for an rma . I RMA'ed a mother board from them and their rma process is horrid
[Nexus 7 General] Salty Wagyu:
Can't even open the back case, broke two fingernails already and credit cards are too thick to slot in.

edit: Got it open in the end. Tape didn't fix the issue unfortunately. Although my flicker isn't rapid, it looks like a slight adjustment of brightness when scrolling down a white page every few seconds which still gets my attention. Automatic Brightness isn't enabled.
[Nexus 7 General] Lozzo:
The problem I can see with this modification is mainly that of efficiency.

Firstly, by removing the ground you are altering the impedance of the antenna system. Some transmitters, when faced with a mismatch like this, will "fold back" output power. Secondly, the ground plane of an antenna is the "other half" of your antenna. You need to think AC when it comes to antennas, not DC... :)

Combine those two scenarios and you can see how efficiency will be compromised.
[Nexus 7 General] tntgdh:
Well i just did here. Didn't work for me and the reception got way worse.

I removed the tape and tried lux again, and now its ok.

Go figure...
[Nexus 7 General] tntgdh:
Weird thing. After i did the fix and it didn't helped i removed the tape. My nexus after that started to flick way more. Before was really light.

I installed lux and still had some flick. I then put the tape back + lux installed and now it is all gone.

So for those that the fix didn't help, try using lux with it.
[Nexus 7 General] kikikaka:
I suspect if this is merely related to WIFI. I tried to turn off WIFI and use bluetooth tethering to access internet. The same flickering problem.
[Nexus 7 General] leebo:
It seems to have worked for me. I followed the instructions exactly. It's been a week.

I don't yet notice any issues with WiFi.
[Nexus 7 General] Cynnthetic:
A lot of you here are describing the Tegra Prism auto contrast as "flickering" and its a different issue. If your screen gets brighter or darker slightly its a feature of Tegra 3. An ugly but normal one. There's apps to disable it if you search the forums. Flickering here is used to describe backlight failure due to interference. Totally different things. Tape won't stop Tegra.
[Nexus 7 General] Draje0:
Disabling Tegra Prism auto contrast fixed my flickering completely. I recommend trying this first.
[Nexus 7 General] Salty Wagyu:
Is there a free app?

There is a paid app on Play, but paying to fix a hardware fault?
[Nexus 7 General] Jay Aristide:
It's not a fault, it's intended behavior -- albeit ugly.
[Nexus 7 General] johnus:
I tried the tape fix first, didn't help. Disabling PRISM fixed the issue entirely. Sidenote, when I had the cover off, I noticed it's missing a few screws inside. Nice QC, Asus.
[Nexus 7 General] :
Relax

The newer nexus 7 devices ditched a few screws to help prevent the screen lifting issue a lot of people were having (that's at least what I heard).

---------- Post added at 07:34 PM ---------- Previous post was at 07:32 PM ----------

I'm testing this trick right now, but first I need to charge my nexus :P. Will report back when I've tested this mod.
[Nexus 7 General] adamhlj:
What do you mean by disabling PRISM?

Edit, NM, I googled it :)
[Nexus 7 General] jamadio:
Updating to 4.2 fixes the problem.
[Nexus 7 General] :
That didn't help me and updating probably won't help a lot of people
[Nexus 7 General] Jay Aristide:
No, not for me it doesn't. Disabling Prism (done by default in most custom kernels) does, though.
[Nexus 7 General] xxx4reggie:
subbing to this

i have the same issue, problem with me is that my signal strength is bad upstairs so if i do the tape fix and it hits my signal, it'll drop connection altogether.

the place i bought from will take it back but i wont get this deal again which makes me a little sad
[Nexus 7 General] WasherUK:
I took the back off to try this fix when I noticed one of the white stickers on the device was put on wonky and was already covering 60% of the contact on the nexus side, I moved it and my flicks have gone.
[Nexus 7 General] WasherUK:
Flicker came back! Covered the gnd with a small square cut out of the sticky part of a post it note. Flicker seems to be fixed for now, signal still good. Might have reduced a little but fine for me.
[Nexus 7 General] adamhlj:
Which version of the N7 do you have?
[Nexus 7 General] gomibako:
Has anyone had issues with bluetooth audio after putting the tape on the wifi antenna? It seemed to help the screen flicker a bit, but then listening to audio over bluetooth would get distorted and phase in and out. After removing the tape, the audio worked again, but the flickering came back too.
[Nexus 7 General] UberSlackr:
The Flicker in the screen goes away for me when I disable Auto Brightness..

Maybe it just me though..
[Nexus 7 General] rootbrain:
Don't know why you would think a piece of scotch tape would affect the wifi power. The walls of my house don't.
[Nexus 7 General] WasherUK:
Because you're covering up the ground (-) terminal of the antenna not because the wireless signal can't pass through tape.

I have removed the tape now as the flickering was still present, I'm going to live with it.

I have noticed my Xperia S does the same thing though which doesn't have Tegra 3.

The people who say turning auto brightness off fixes the flickering, I can see what you mean but it's two different symptoms. The auto brightness can and does cause flickering as if the available light is in between two light sensor values and it jumps between two values.

The flickering when auto brightness is disabled is a rapid flicker not too dissimilar from the wifi data light on a modem. It pulses maybe 3 or 4 times in quick succession then stops for 10 seconds or so.

Turning brightness up from minimum does seem to stop it so it's not too bad.
[Nexus 7 General] jsmasterx:
Wich one please ? I use lean kernel.

tho the problem only occurs with poor wifi signal and when the wifi power management is turned on. When off seems ok.

But im just curiouz wich kernel solve the problem
[Nexus 7 General] AndreaCristiano:
Same here
[Nexus 7 General] asim0:
Disabling wifi power mgmt did not help.

Do I need to root to disable prism?

And does it imply that I won't be able to use autobrightness when it's disabled?

Thnx
[Nexus 7 General] snarlytaz:
Disabling WiFi power management and prism still doesn't help when WiFi signal is low. Flicker will occur but it is less noticable when brightness is up. You can still use auto brightness with prism disabled. You need root to disable it. It also helps contrast but just slightly.
[Nexus 7 General] trevd:
Nice One!

I'll give this a go when I get my hands on the device, got some mylar tape that'll do the job. The flicker gets really bad when the wifi is working extra hard.

:good:
[Nexus 7 General] Annihilism:
Thank you OP. Just putting some tape on the connection point did not work for me. then i taped off the actual connector itself and it worked!

I get the feeling that the ground pin might be touching both connection point and that being the reason for the flickering. I used black insulation or isolation tape (not sure what it is called in english)
[Nexus 7 General] porkchopbolt:
Thanks op, it definitely worked for me.

No WiFi issues either, signal is just the same.
[Nexus 7 General] chadteck:
I went to perform this mod and I noticed that there was some residue between the WiFi antenna contacts and the contacts were slightly offset from the pins. I cleaned the area and bent the pins a tad so they would contact the pads completely. I didn't place the tape because I wanted to try it after these changes.

I have no perceivable flicker after doing this and my WiFi signal seems to be improved (no testing, just observation).

I think the residue may have been partially conductive and causing a small short between the two pins. This would explain why some people experience this issue more than others and why for some, covering the pad with tape doesn't work (pin could still contact residue and create a weak connection).

It would be interesting if some others would test this out and report results.
[Nexus 7 General] snarlytaz:
I have had similar results slightly bending the contact point to make sure a tight connection was reached. Flicker reduced quite a bit.
[Nexus 7 General] Adinaky:
Well, I placed the tape and amazingly, it works. I don't have that flickering anymore. I didn't think it will actually work, but everything is fine and the wifi signal is ok. I can't see any signal difference yet. You should try it if you want.
[Nexus 7 General] GianniDPC:
Can someone help me it didn't seem to work for me... I did the same as on the picture. I don't have any flickering when the back cover is removed :confused:
[Nexus 7 General] Chambece:
A Wifi channel change seem to fix it for me...

I have noticed this get markedly worse since the update, which also corresponds to around the time I got a different case for it.

Anyway, after looking at this thread, I have changed the wifi channel (from [auto], but was working 1 to 11 if that's relevant) and to be honest, I can't see it flickering at all now. This is with the case on, auto brightness and with the wifi optimisation turned on still.

I am wondering if the fact it was on auto might have had something to do with it too - sometimes I would notice it really badly, others not so much. I'm now wondering if it was only when it was working on certain channel it was a problem.
[Nexus 7 General] 70363c1413:
I think you may be on to something here. I had used the tape method a few weeks ago and it helped the flickering issue. After reading your post, I reopened the case and inspected the connection pads. Sure enough, there was a brownish residue there which I removed with a fine dental pic & alcohol. I also found this residue between the GPS pads. After reinstalling the case (without the tape), I had no appreciable flicker in low light / low WIFI signal conditions with the auto brightness turned on. The WIFI signal app I'm using showed about a 7db inprovement in signal strength as well. I will continue to monitor this and see if the improved results persist.

Thanks for the tip.
[Nexus 7 General] mygraine:
Just be extra careful around those pins, I broke mine and had to re solder them on. I would not wish that on my worst enemy. It was a major p.i.t.a.
[Nexus 7 General] WaVeS:
Awesome dude! Thanks. This worked like a charm, had it fixed in a minute flat.
[Nexus 7 General] XDA-99:
Try this also :

http://xdaforums.com/showthread.php?t=2116431
[Nexus 7 General] nolig2278:
Would screen flicker be covered under warranty and the nexus has a one year warranty right?
[Nexus 7 General] SibaNL:
man.

not working for my :c and yes it is fully covered
[HTC One S] DSSLE:
Hello Community

I'm searching for a German O2 system.img or better a complete german Nandroid of the O2 Version.

How big is the difference between the DE and the UK version? Is it possible to extract the system.img from the UK RUU, flash it to my One S and update it to the DE version?

Greetz

DSSLE
[Sony Xperia P, U, Sola, Go] matlear:
Hey devs, please share how you mod the xperia s system files to pick up 5ghz wifi... Stock 54mbps is terrible when streaming hd content of the xperia s to my tv.

There is various tutorials for other devices around here but they state that on ICS you have to modify tiwlan.ini but my xperia s does not have this file...
[Sony Xperia P, U, Sola, Go] K900:
It is already partially supported in ICS.
[Xperia Arc Q&A, Help & Troubleshooting] homasholz:
hey, ive a carrierlocked arc s (LT18i) and i want to unlock the bootloader, i bought a omnius licence but it did not work. the production code of my phone is 12w25.

is it impossible to unlock my bootloader, pls help me guys.

thx for reply.
[Xperia Arc Q&A, Help & Troubleshooting] Tarun.krthkr:
First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the dialler and enter *#*#7378423#*#* to access the service menu.

In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can . If it says No, or if the status is missing, your device cannot be unlocked. I hope its helps
[Galaxy S III Accessories] bso44:
This dock looks perfect. Case compatible, data sync, mhl support and spare battery charger. Looks really solid too. Anyone have any experience with Kidigi products?

http://www.kidigi.com/product_lv2.php?pid=1397

http://www.youtube.com/watch?v=5CyW5RSdjb0&hd=1

It's on Ebay for $23.

http://www.ebay.com/sch/i.html?_nkw...sacat=0&_odkw=kidigi+dual+desk+dock&_osacat=0
[Galaxy S III Accessories] msgnyc:
OK, I was a little skeptical up until he pulled out the little cradle to allow for docking the S3 with a case on... I love that design. That sold me right there.

Nice find. Ordered placed. Needed a new charger for my QCell anyways.Hopefully it actually fully charges my backups... lol
[Galaxy S III Accessories] Hound88:
Just ordered one as well. Had one for my Note and really liked it. Too bad it doesn't work with my S3.

Thanks OP!
[Galaxy S III Accessories] scarrmrcc:
really? a dock that doesn't provide 1000mA to the phone? sad.

(also i doubt they have MHL ability.. because that does not look like an 11 pin connector. they are slightly different to reach the MHL pins.)
[Galaxy S III Accessories] firetruck41:
On the youtube video, the ac adapter is shown, and the writing says it is 1500mA. I think it only provides 500ma to the spare batt charger, if it is like other spare batt chargers I have seen. 500mA for the phone will barely keep up with general use. I would be interested to see what real world use is for charge times both in phone and spare battery.
[Galaxy S III Accessories] A|ex:
Its a damn good dock, just ordered of amazon for £15 inc P&P which works out £5 cheaper than mobilefun and if you want next day (1-2days) its just under £20 so still cheaper. 500A is not an issue for me as i only plan to keep the phone docked (compared to leaving the phone flat not charging) so not too bothered about the charge but do like the idea of it being able to charge a spare battery.
[Galaxy S III Accessories] bso44:
So does that mean that the dock can output only 500 mA or that the charger that comes with it can only output that much? Can't we just use our stock charger that outputs 1000 mA with the dock or is that not how it works?
[Galaxy S III Accessories] scarrmrcc:
According to the specs, no matter what adapter you use (theirs is 1500mah) you only get 500.
[Galaxy S III Accessories] bso44:
Well, that's a bummer. That means double the charging time?
[Galaxy S III Accessories] msgnyc:
Find out when it arrives i guess, but it realy doesnt effect me much if it takes longer to charge aslong as it charges both to 100%. I get through a whole day easily enough and ill be using this to charge overnight as I sleep so.
[Galaxy S III Accessories] bso44:
Mine should be getting here on Friday so I'll post a review once I put it through its paces.
[Galaxy S III Accessories] crzy619:
I ordered a white one couple days ago too. Be here any day now. Will let u know too :)