yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Themes and Apps] sorg:
Several days ago I've bought Netgear PTV3000 just to fulfill my curiosity about FullHD screen mirroring.

Hmm.. Guys, it's crap! Even Snapdragon 800 CPU (SHV-E330S) is not enough for it. Screen is jerky, lag a lot. Yep, picture is better than from AllShareCast dongle, but i don't agree to pay the price of smoothness.

With AllShareCast dongle i can even play racing game on TV. With NetGear it's simply impossible.

I didn't check movie playback yet. May be it will be more smooth due to some tricks, but it's not what i've expected from screen mirroring...

So, now it's clear for me: it's more gimmick feature than useful. If i need to send phone' screen to TV then it's better to use MHL (although it's not as perfect as real HDMI as well).
[Galaxy S 4 Themes and Apps] toutoune28:
Any news about Kitkat Google edition compatibility on S4 i9505 ?
[Galaxy S 4 Themes and Apps] hasek82:
Not working on the latest I9505 omega V25 4.4.2 :( anyone can fix it please?

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[Galaxy S 4 Themes and Apps] mazbot:
When i was stock I could mirror and play without any lag and very smooth (of course 1080p 30 mhz) directly to tv. But when I tried with all cast app i cant watch a video without lagging.

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[Galaxy S 4 Themes and Apps] 4shared:
Hi [MENTION=334644]sorg[/MENTION] and everyone.

I tried to patch the libWFD_ENGINE.so for my n7100 4.4.2

and I found and changed only two parts you changed for Exynos 5410

the parts founded are:

1-STOCK:
.text:000114C0 CBNZ R0, loc_114D0

1-PATCHED:
.text:000114C0 MOVS R0, #0

>>>N7100>>> .text:0000D044 CBNZ R0, loc_D054

*****************************************************************
2-STOCK:
.text:0001FE68 LDR R3, [R7]

2-PATCHED:
.text:0001FE68 MOVS R3, #0

>>>N7100>>> .text:0001B87C LDR R3, [R7]

The patch works for me but the sound mirroring is not working, sound plays only from device.

Is that issue related to the third difference that I haven't changed?

Any help to find it?

Thanks a lot!
[Galaxy S 4 Themes and Apps] sorg:
Honestly, i already forgot the code :)
[Galaxy S 4 Themes and Apps] 4shared:
I hope this helps to remember the code :)

I attached the 2 text results from IDA Pro

I will be greatful if you can compare them, to find the third defrence,,,

Thanks you.
[Galaxy S 4 Themes and Apps] gabrielgagz:
Why i dont have that file on my rom? Omega v20 4.4.2 - i9500

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[Galaxy S 4 Themes and Apps] 4shared:
It may have a different name as libwfdsm.so
[Galaxy S 4 Themes and Apps] sorg:
you didn't provide your .so file.
[Galaxy S 4 Themes and Apps] 4shared:
Here is my so file attached.

Regards;
[Galaxy S 4 Themes and Apps] Mussels84:
$5 to anyone who gets this working on my galaxy note II

https://mega.co.nz/#!cBdw2STL!r1hted4neKh2JTJqE8Uls2vjY0icYS2P0PtZi9XSlmE

N7105, 4.3 touchwiz
[Galaxy S 4 Themes and Apps] chico260:
Have you tried stock kernel
[Galaxy S 4 Themes and Apps] gabrielgagz:
I dont have that file neither...see my attached image

Thanks

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[Galaxy S 4 Themes and Apps] sorg:
replace this

.text:0001EC14 BNE.W loc_1ED88

with this

.text:0001EC14 B loc_1ED88

This is the third place, it's same as in my original patch.

I'm not sure if it will help or not. I cannot test it by myself.
[Galaxy S 4 Themes and Apps] 4shared:
Thanks, but i did that already before, and the screen mirroring won't work at all...
[Galaxy S 4 Themes and Apps] sorg:
Well.. That's why i don't patch for devices i don't have.

This process requires many tries and checks till it start to work.
[Galaxy S 4 Themes and Apps] 4shared:
Thank you so much, you already helped me a lot by providing those files..

And i will continue trying to get it fully work.

Regards.
[Galaxy S 4 Themes and Apps] Mussels84:
my cheap ****ty miracast adaptor doesnt support HDCP anyway, so without this hack i cant use it at all. i'm greatly enjoying having it work on all my devices and wish more knowledgeable people would add great device support - hence a financial incentive.
[Galaxy S 4 Themes and Apps] Misk77:
Works in omega 26.

Screen mirroring perfect.

With included talexop kernel

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[Galaxy S 4 Themes and Apps] Misk77:
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[Galaxy S 4 Themes and Apps] hasek82:
Can you make a fix for Galaxy Tab 3 8.0 4G SM-T315 :)?

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[Galaxy S 4 Themes and Apps] MAX 404:
Mate please do not forget your cousins ......port it for I9500 too !!!!

Whatever you decide to do thanks!
[Galaxy S 4 Themes and Apps] THEDEVIOUS1:
although I could use your help [MENTION=334644]sorg[/MENTION] I will wait while longer to see if I can figure it out myself before I bother u...This is actually for [MENTION=5285354]4shared[/MENTION]. I believe I found part of your problem and while I can point it out I cant suggest the solution...I noticed when I opened your text files in winmerge that u made a mistake and edited the wrong offset. The one u changed which was "00023E0E" actually has an "BNE" reference instead of the "BNE.W" line that [MENTION=334644]sorg[/MENTION] mentioned above. Unfortunately there are 128 possible places it could be in the file so u will have to narrow it down yourself...although there is a "BNE.W" reference 5 lines above the one u changed which might be the right one. As for me...I'm working on the tab pro 8.4 which is a qualcomm snapdragon 800 (libwfdsm) device running 4.4.2 and I'm stuck trying to find the other 2 modifications since the code is so different from even the qualcomm i9505. I found one thanks to a suggestion @ sorg made to [MENTION=2673173]Tyxerakias[/MENTION] in post #45 of this thread. At this point one would think someone would have already modded the file for the note 3 N9005 running 4.4.2 at least (which uses the same chipset as the tab pro 8.4)...although I'm assuming no one has created it since I cant seem to find it anywhere. That woul definitely save me a headache right now but I'm actually enjoying the learning experience...welll at least I was about 8 of hours ago :silly:
[Galaxy S 4 Themes and Apps] Gage_Hero:
Confirmed working on I337M

This also works on the Canadian i337m with audio... used the kit kat flash file... many thanks!!!
[Galaxy S 4 Themes and Apps] hasek82:
Please make a fix for Galaxy Tab 3 8.0 4G :)?

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[Galaxy S 4 Themes and Apps] dschmiddi:
Can anyone Fix the Screen Mirroring for the Samy Deluxe S4 ROM ?
[Galaxy S 4 Themes and Apps] Razor29:
I have been reading testing and digging for the similar file on the Exynos 5420 (note 3) Kit Kat 4.4.2

I have several suspects such as: *.libhdcp2: ( a files that seems to give the first Que stop the mirroing connection),however i would gladly share the relevant log info if it would help.

I would love to get some general pointers, i currently learning the subject so it would really help.

Returning to the matter of locating the lib file similar to libwfdsm.so i have been searching for it via DDMS Eclipse.

any info or tips would be very appreciated.
[Galaxy S 4 Themes and Apps] ered15:
Anyone knows if this works with Omega v20 Kit Kat 4.4.2 for S4 I9500??? I just bought a Tronsmart T100 and I can't mirror to my TV it's trying to connect but it won't.
[Galaxy S 4 Themes and Apps] gabrielgagz:
Nope. No fix yet. :(

Probably because files libwfdm or libwfd_engine doesnt exists on i9500 kitkat? They need to find the culprit of hdmi conection

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[Galaxy S 4 Themes and Apps] Spartan199:
Thought it was just me ?. I couldn't find the file. Doesn't exist...
[Galaxy S 4 Themes and Apps] louforgiveno:
Just installed and tested on sprint l720 s4 and works perfect.....android 4.3
[Galaxy S 4 Themes and Apps] sumbeam:
The same here. I don't plan to uptade to 4.4.2... :/

Thank you so much!
[Galaxy S 4 Themes and Apps] tkari4:
Can somebody tell me what shouldn't work ?

Phone: N9005

Dongle: Samsung EAD-T10EDEGSTD

Projector: BenQ Full HD

ROM: 4.4.2 NC2 (my own Multi Dpi)

Dpi: 360

Rooted, deodexed

Chenglu's CWM with stock kernel

I did not modify anything. (was planned for mirroring, but it works)

Screen Mirroring works!

Audio on HDMI works!

Pictures:

:confused:
[Galaxy S 4 Themes and Apps] devilsdouble:
I am on stock Odex 4.4.2 ROM, i9500, but since upgrading to KitKat the Screen Mirroring feature has stopped working! It says some hardware issue or something! Could I try the method mentioned in OP?

Here is my problem:

http://xdaforums.com/showpost.php?p=51702560&postcount=1897
[Galaxy S 4 Themes and Apps] Tonyco1:
Hello,

is there some fix for S4mini GT-I9195 ? It is with SnapDragon 400 so I assume that no one of this files will work.

Thanks.
[Galaxy S 4 Themes and Apps] seedanbu002:
Any news for I9500 4.4.2 stock rom rooted?
[Galaxy S 4 Themes and Apps] gabrielgagz:
Any news?

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[Galaxy S 4 Themes and Apps] gabrielgagz:
Hi [MENTION=334644]sorg[/MENTION] how can we find the file culprit of hdmi mirror on i9500 4.4.2 (Omega v20 in my case).

Wich tools do you use to find libwfd_engine or libwfdm on your rom? Thanks
[Galaxy S 4 Themes and Apps] Misk77:
A question about screen mirroring.

It's seems very random on every rom if it's works and no stuttering, lag. Only rom what I didn't have any problems it worked perfectly was on omega26 and omega28, with stock kernel, think it's talexop kernel.

How much affect does the rom have and/or kernel? Any suggestions or solution,.

Anyone who has thoughts about this?

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[Galaxy S 4 Themes and Apps] Spartan199:
I got it working somehow on my I9500 omega v20. I copied all 7 allshare apk files to system/app. changed their permissions and it now works. maybe just a single lag 3 seconds into a vid but all good
[Galaxy S 4 Themes and Apps] gabrielgagz:
From wich rom did you copy allshare files?

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[Galaxy S 4 Themes and Apps] Spartan199:
omega v20?
[Galaxy S 4 Themes and Apps] gabrielgagz:
I dont undestand. You just move the files in the same rom?

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[Galaxy S 4 Themes and Apps] Spartan199:
Well initially when I installed the rom I had the option to install Samsung Link. that had all the AllShare related files which I didn't install.
[Galaxy S 4 Themes and Apps] gabrielgagz:
That's really weird...i installed omega from v18 to v20 and never work. I have to downgrade to v17 4.3

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[Galaxy S 4 Themes and Apps] JackYack13:
will this work on i9505 running kitkat XXUFNB8?
[Galaxy S 4 Themes and Apps] milanche:
Guys hello,

would someone with the skills be ready to help us fix this issue for SM-P600 devices on new KK 4.4.2 ROMs?

I'm attaching the lib where I believe is the problem on our devices. Help would be appreciated!

https://www.dropbox.com/s/fjwf9kctjs5inqp/libstagefright_wfd.zip

Br.
[Galaxy S 4 Themes and Apps] Razor29:
hi milanche im on SM-N900 I have also suspected the same lib file on kitkat my note 3 if you have any info please share I will to im still rather new in using tools like ida pro and such so I am mostly reading and researching how to read the output
[Galaxy S 4 Themes and Apps] gabrielgagz:
Contact [MENTION=2673173]Tyxerakias[/MENTION] he offer me help for my phone, but i never find the file for i9500 kk

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[Galaxy S 4 Themes and Apps] jager13:
help with i9500 KK pls

[MENTION=2673173]Tyxerakias[/MENTION] and [MENTION=334644]sorg[/MENTION] or anyone else who can help,

i'm an s4 i9500 user with KK 4.4.2 omega v20 and i've been searching and researching bout this fix but all i could find were fixes for other models :mad: :mad::mad:

:) it's ok :) eventually it'll happen. So i thought i'd help out a bit (i think)

This is what i found in libstagefright_wfd.so :

.text:00023C5A loc_23C5A ; CODE XREF: .text:00023C32j
.text:00023C5A BLX __android_log_print
.text:00023C5E B loc_23CDC
.text:00023C60 ; ---------------------------------------------------------------------------
.text:00023C60
.text:00023C60 loc_23C60 ; CODE XREF: .text:00023C4Ej
.text:00023C60 LDR R1, =(aHdcp2_0 - 0x23C70)
.text:00023C62 MOV.W R8, #1
.text:00023C66 ADD R0, SP, #0x38
.text:00023C68 STRB.W R8, [R4,#0xD48]
.text:00023C6C ADD R1, PC ; "HDCP2.0 "
.text:00023C6E BLX _ZNK7android7AString10startsWithEPKc ; android::AString::startsWith(char const*)
.text:00023C72 MOV R5, R0
.text:00023C74 CBNZ R0, loc_23C9A
.text:00023C76 LDR R1, =(aHdcp2_1 - 0x23C7E)
.text:00023C78 ADD R0, SP, #0x38
.text:00023C7A ADD R1, PC ; "HDCP2.1 "
.text:00023C7C BLX _ZNK7android7AString10startsWithEPKc ; android::AString::startsWith(char const*)
.text:00023C80 CBNZ R0, loc_23C9C
.text:00023C82 ADD R0, SP, #0x38
.text:00023C84 BLX _ZNK7android7AString5c_strEv ; android::AString::c_str(void)
.text:00023C88 LDR R1, =(aWifidisplaysou - 0x23C94)
.text:00023C8A MOV R3, R0
.text:00023C8C MOVS R0, #6
.text:00023C8E LDR R2, =(aMalformedWfd_c - 0x23C96)
.text:00023C90 ADD R1, PC ; "WifiDisplaySource"
.text:00023C92 ADD R2, PC ; "malformed wfd_content_protection: '%s'"
.text:00023C94
.text:00023C94 loc_23C94 ; CODE XREF: .text:0002393Cj
.text:00023C94 ; .text:000239F2j
.text:00023C94 BLX __android_log_print
.text:00023C98 B loc_23CD8
.text:00023C9A ; ---------------------------------------------------------------------------
.text:00023C9A
.text:00023C9A loc_23C9A ; CODE XREF: .text:00023C74j
.text:00023C9A MOV R5, R8
.text:00023C9C

These are the only lines referring to HDCP2.0 or HDCP2.1, many more exist in reference to HDCP (libstagefright_wfd.so)

I really don't know if this helps at all, not even sure if it's the right file to edit (the other files do not exist in i9500 KK)

Anyways, i'm willing to test any changes or suggestions to make this work!

NB:

The screen mirroring when connected gives me HDCP error when in portrait mode, but when i rotate the phone to landscape mode, screen mirroring works on half the screen (not streched, just cropped) with the other half blacked out...

Any help would be much appreciated :) Thx
[Galaxy S 4 Themes and Apps] hiiwillie96:
NIce Works
[Galaxy S 4 Themes and Apps] Razor29:
what value did you change?? I looked through it and through libstagefright_hdcp.so and libhdcp.so but Being on ida pro for more then an hour gives me sharp head aches (-;
[Galaxy S 4 Themes and Apps] jager13:
I didn't change anything yet :silly: i was hoping someone can help out in this matter!

I'm gonna test a cple of changes later in the evening, i'll update you asap! but if this isn't the correct file, all would be in vain.

How can we know for sure?
[Galaxy S 4 Themes and Apps] Razor29:
i with you on the help bit, i mean im not that advance in such things my self, i have been simply looking, reading, learning and trying to understand.

i think that managing to freeze the operation at the instance of the problematic value would be the ideal way to find out, using a breakpoint.

pointers are surly welcome plus i would love to see a verbose debug readout of a working instance of screen mirroring to compare
[Galaxy S 4 Themes and Apps] jager13:
...

Is there a way to save a log file while trying to screen mirror? at least we'd know which libraries are being used to screen mirror and that would narrow down our search.
[Galaxy S 4 Themes and Apps] Razor29:
Well their are endless amount of apps that can log the activities while trying to connect and you can use Android SDK connected to a pc. but im not sure what resolution they give in order to pinpoint the culprit
[Galaxy S 4 Themes and Apps] jager13:
tried 2 or 3 apps from playstore, (the one i can remember was aLogcat) but in vain! None worked... Gonna try with android SDK in a while (fingers crossed ;) )
[Galaxy S 4 Themes and Apps] jager13:
so, i got my log from android sdk, i can actually see the error message in the log file, but i honestly don't know how to "read" it... there's no mention of .so file in there :( Anyways, if it helps, here's my log if anyone can help out (dunno if it's relevant) :)

PS: Steps recorded in the log are:

1-Settings

2-Screen mirroring

3-Connect to "minpcandy" in portrait mode (my mini android for tv with miracast embedded)

takes a cple of tries to connect

4-Connected with the "Unable to enable Screen Mirroring. HDCP is not supported by the connected device" showing on screen

5-Rotate phone to landscape mode ---------> no more error but screen is cut in half : left half black and right half mirroring only half of the s4 screen (if not clear, will post screenshots)

6-Stop screen mirroring

7-End of LOG!
[Galaxy S 4 Themes and Apps] gabrielgagz:
Any news pal? Thanks

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[Galaxy S 4 Themes and Apps] jager13:
I wish i have good news mate, but i hit a dead end :( I'd have to be able to read the code or even understand it in order to carry on, that's why I've been posting my logs and research, hoping that some dev could help out. Apparently no dev needs screen mirroring on his rooted International S4 :rolleyes:
[Galaxy S 4 Themes and Apps] mrmrmrmr:
Hi,

I see that on 4.4.2 , Tyxerakias has pacthed libwfdsm.so to solve the issue.

On my Note 10.1 2014 edition, I don't have that lib file. I have libwfds.so

How can I learn which file to patch ?

Thx.
[Galaxy S 4 Themes and Apps] vatomalo:
Anyone know if there is a way to add this to the Samsung galaxy tab 3 lite?

I really need this since i bought a ezcast dongle and well its pretty useless as a DLNA dongle....

Have search around the web, any help will be appreciated!
[Galaxy S 4 Themes and Apps] aakashdahake:
Plz can anybody port out this solution for GT I9500,

Running Kitkat 4.4.2 Hassan rom,

I can't use screen mirroring on my tv as its showing "hardware issue error",

plz make an patch for Kitkat too
[Galaxy S 4 Themes and Apps] turktiger:
i9500 4.4.2 Everyone is waiting for Fix ?

i9500 4.4.2 Everyone is waiting for Fix ? Is there anyway yet to fix screen mirroring i9500 4.4.2 ?
[Galaxy S 4 Themes and Apps] Misk77:
Omega rom has no issues with screen mirroring works flawless on my i9505

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[Galaxy S 4 Themes and Apps] aliJoJo:
Is there anyway yet to fix screen mirroring i9500 4.4.2 ?
[Galaxy S 4 Themes and Apps] aliJoJo:
Would you please make one that works for the I9500 on 4.4.2 KK? That will be very grateful!
[Galaxy S 4 Themes and Apps] MSSXXI:
Works flawless for me with WanaLite 4.4.2 XXUFNBH v2.5 with custom Adam Kernel and root! FINALLY!!

The OP could edit and include these link files on the main post! :laugh:
[Galaxy S 4 Themes and Apps] Razor29:
id appreciate to get a link for the download link for the modded mirroring files
[Galaxy S 4 Themes and Apps] aakashdahake:
which files are required for mirroring on 4.4.2 ?

---------- Post added at 06:42 PM ---------- Previous post was at 06:39 PM ----------

dude it is working with Adam Kernel n wanamlite rom 4.4.2 without any issue, ??
[Galaxy S 4 Themes and Apps] Tyxerakias:
Not working yet for Exynos devices on 4.4.2. So no, it will not work with your 9500.

If someone figures out what to change to disable hdcp, then we'll be in business. I think jager13 is on the right path... maybe.

I don't have an exynos device on 4.4.2 so I can't play around. And I'm not an expert on this like sorg is, anyway.
[Galaxy S 4 Themes and Apps] mrmrmrmr:
I am still looking for correct file to patch on 4.4.2 SM-P600

Has anyone identified it ?

Thx.
[Galaxy S 4 Themes and Apps] hasek82:
My phone reboots when i try to connect to my dongle on latest I9505 Samy Deluxe S4 Rom S5 Edition J.

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[Galaxy S 4 Themes and Apps] edduart:
After trying very much I think I solved it, just rename the file to libwfds.so and replace the one into the folder lib and set the right permission, now working on my i9500 omega v20.

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[Galaxy S 4 Themes and Apps] aakashdahake:
which file to rename, tell me quickly :o, ,

R u talking about 4.4.2

---------- Post added at 05:07 AM ---------- Previous post was at 05:06 AM ----------

Bcoz no libwfds. so exists in 4.4.2

---------- Post added at 05:26 AM ---------- Previous post was at 05:07 AM ----------

hey will u plz explain in detail !!
[Galaxy S 4 Themes and Apps] aakashdahake:
I replaced that libwsd_engine. so with libwfds.so (renamed) n all permissions r given but still not working
[Galaxy S 4 Themes and Apps] edduart:
Download the libswd-engine.so from the 1st page and rename it as libwfds.so then paste it to the folder and set permission.

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[Galaxy S 4 Themes and Apps] aakashdahake:
did the same but still not working,

does it working good in ur fone ?
[Galaxy S 4 Themes and Apps] gabrielgagz:
Not for me. Omega v20

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[Galaxy S 4 Themes and Apps] Lennyz1988:
It would be great if someone managed to get it working again.
[Galaxy S 4 Themes and Apps] sumbeam:
Tomorrow I will try in my i9505 updated to WanamLite v2.6 4.4.2 and let you know the results.

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[Galaxy S 4 Themes and Apps] yasan:
I tired and it doesn't work with WanamLite v2.6
[Galaxy S 4 Themes and Apps] sumbeam:
OUCH! :(

I will ask in WanamLite rom's thread...
[Galaxy S 4 Themes and Apps] sumbeam:
I have just tried now and it worked perfect¡ ! ¡ [emoji1][emoji1][emoji122][emoji122][emoji122]

Just change the file libwfdsm.so by the new fixed (post #45) , aply permissions and reboot!
[Galaxy S 4 Themes and Apps] yasan:
When i have time i'll try but i'm using omega rom now and all features work perfect without patch . I don't know why but i don't like omega rom
[Galaxy S 4 Themes and Apps] jhanson:
Can anyone please possibly take a look at this one: galaxy s5 4.4.2... I've tried all the instructions provided here and most files all with no luck. Any help is greatly appreciated!
[Galaxy S 4 Themes and Apps] joaquinpb:
Trying to help on 9500 solution

Hi, I read the whole post looking for a solution for my 9500 but, as usual for this model, there isn't any.

I tried to follow the steps someone posted to find diffs between the patched file and the original one in 9500 but I even couldn't export the *.so file into text file (for the record, I tried hard!!!).

The reason I'm quoting you Tyxerakias is to ask you if you could try to patch the file "libwfds.so" from 9500 ROM. I'm pretty sure (cause I've reading in many different places about this topic) that this is the file involved in this failure.

I hope someone can find a solution here!! Thanks anyway to xda for prividing us with so many excellent/interesting/useful things.

Thanks (again) in advance

PS: sorry for my english, but It's not my native language
[Galaxy S 4 Themes and Apps] Mussels84:
unfortunately, the OP wasnt interested in doing this for other devices - so only a handful have been done.

too many devices are being ignored now, sadly.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] nunjabusiness:
So I got some NFC tags, planning to automate some functions for convenience.

One to turn off wifi and turn on GPS, BT and mobile data for use in my car and one to do the reverse when I get home, etc.

I got the things and immediately saw the problem. My S4 is in an S-view case that is not particularly thick.

While in the case, the phone simply does not "see" the tag at all. Out of the case, it does.

So essentially, if I want to use NFC, I have to take the phone out of the case first.

Is that it? Anyone have any ideas?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] scott14719:
I can only say that NFC works fine on my s4 with an OBEX case on it. Are you sure you are using the correct tags for the s4?
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] toxicpaulution:
Nfc works quite a bit of distance away. Mine goes through my spiegen case and my wallet(have a tag to unlock on my bum) and it works flawless.
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] bennyboy78:
It does work pretty well through plastic.... it goes through a friend's otterbox defender case and my spiegen just fine
[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] nunjabusiness:
Very interesting. I am using brand new Samsung Tectiles, bought from Samsung.

The case is not that thick, but there is a piece of metal stuck to the inside back for my iMagnet car mount.

Could that be the culprit?

That would be a bummer as it is the best mount I have found so far - bar none.