yashsingh1/xdaforums huggingface dataset:
[Galaxy S6 Q&A, Help & Troubleshooting] strahlermann:
No, even if the sim card is detected, there's no antenna to make a connection.

---------- Post added at 03:36 PM ---------- Previous post was at 03:24 PM ----------

Wouldn't help to make a rom, you can install roms which are for the usual galaxy s6. I use this one: http://xdaforums.com/galaxy-s6/development/rom-xtrestolite-deodexed-mod-edition-1-0-t3094423

Instructions to install a rom are the same as for the "usual" Galaxy S6 Phones, so also not necessary to have different instructions. It all can be found here in the xda forums. Still there will be no sms nor phone capabilities with a Live Demo Unit.

regards
[Galaxy S6 Q&A, Help & Troubleshooting] Tunatje:
You're saying that there is missing a antenna. Antennas are sold all over the web. Does that solve the problem and imei?

Verstuurd vanaf mijn SM-G920F met Tapatalk
[Galaxy S6 Q&A, Help & Troubleshooting] strahlermann:
Don't know for sure, but there's a big chance that No as mielletseed says.
[Galaxy S6 Q&A, Help & Troubleshooting] mielletseed:
I can't read this question anymore ...:p

Samsung did some effort that the demo devices not can be used as regular phones. Primarily they did not put radio hardware on the board. One part is the antenna, yes but there are also the radio ICs missing on the board.

Probably you got the LDU really cheap or you have been cheated (most of them must be stolen - the are not for sale) - live with it that this device is not and will never be a mobile phone!

Best regards
[Galaxy S6 Q&A, Help & Troubleshooting] Tunatje:
Mine is not stolen. I work(as a shopmanager) for a telecom retailer(Official Samsung dealer). I have 3 of them @ work but 2 of them are not being used. Samsung gave those to me.

So it's impossible to add(buy) those parts?

Verstuurd vanaf mijn SM-G920F met Tapatalk
[Galaxy S6 Q&A, Help & Troubleshooting] mielletseed:
Yeah they gave them to you for presentation purpose ;)

I don't understand what you are asking again. What didn't you understand in my explanation about missing hardware?

Do you really think you can buy these missing (device specific) ICs and solder them yourself to a board (with contacts missing)?

The smallest replacement unit you can buy is the mainboard. There you will have an IMEI too...
[Galaxy S6 Q&A, Help & Troubleshooting] Tunatje:
That's all I wanted to know. I'll just flash a stock rom on it and use it as wifi only device.

Verstuurd vanaf mijn SM-G920F met Tapatalk
[Galaxy S6 Q&A, Help & Troubleshooting] aznabil:
ty so much man i folow all this and all work

first flash the su

then twrp

then the rom

and it work excepte in picture of boot always S6 DEMO LIVE UNIT

and im sorry for my bad english

---------- Post added at 01:14 AM ---------- Previous post was at 01:11 AM ----------

sorry the empreint degital dont work too
[Galaxy S6 Q&A, Help & Troubleshooting] aznabil:
TY MAN

all work now when i flashed the add-on

for the sim i dont have a nano sim so i will test it tomorow from freind who have iphone 5s

ty another time and i have a last question who can i change the boot pecture i have always S6 DEMO live Unit?
[Galaxy S6 Q&A, Help & Troubleshooting] mielletseed:
You would have to flash a full rom including the bootloader but I'm not sure whether this was a good idea or not ...

I did this on a Galaxy A3 demo unit ...

But even when the SIM card was detected and you could insert a PIN I'm pretty sure that you will not be able to connect to a mobile network due to the reduced hardware of the demo units ;)

(okay, I have read somewhere, don't ask me where, that the MOST demo units have a reduced hardware - but I could not imagine why Samsung should give full phones away as demo units ;))
[Galaxy S6 Q&A, Help & Troubleshooting] aznabil:
ty man for your help

i dont know why my phone is 32g but i have 23.4go for systéme and just 8 go for me

and after flash this rom why the nam of my phone is g925i like s6 edge???

and ty another time man
[Galaxy S6 Q&A, Help & Troubleshooting] aznabil:
can u answer pls :o

and how i can flash bootloader ???
[Galaxy S6 Q&A, Help & Troubleshooting] mielletseed:
It's a demo phone with different partition layout. Unfortunately there is a really huge /hidden partition (for the demo data). To get more of the 32 GB in /data we would have to repartition the internal memory with a PIT file and the ODIN software. For me flashing a PIT-File always failed until now. I didn't find a working PIT file of a G920I or G925I with 32 GB internal memory. The ROMs you get on sammobile are all without PIT ...

When your phone says G925I so you obviously flashed a ROM for the S6 Edge and not for the normal S6.

(better don't do things to your device that you do not understand)
[Galaxy S6 Q&A, Help & Troubleshooting] aznabil:
thnks man

you right ;)

now i use it like a galaxy tab with a beter cam XD i will try to use simore or somthing like it to use the sim card

ty another time my friend see y :)

sorry for my bad english
[Galaxy S6 Q&A, Help & Troubleshooting] AndroidState:
Hello, I just got the SM-G920X. I want to flash 5.1.1, is it possible? I am on a VN team F model rom right now (5.0.2)

And is there something to stop the cellular search forever with the circle symbol in status bar?

Thank you :)
[Galaxy S6 Q&A, Help & Troubleshooting] AndroidState:
Also 5.1.1?
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
not booting (custom) recovery

ive bought a SM-G920X, the previous owner clearly did something not write by trying rooting the device.

well, i try to get the custom recovery on the device, but everytime when i try to get into it after flashing it with odin, it just keeps stucked at the ''Samsung Galaxy S6 live demo unit screen''

when i try to get into the official recovery, it also doesnt work, i can only manage to get into there right after rooting the device with CF-Auto-Rooter, after it reboots right after it has installed the root.

i tried to wipe data, but it gives a failure and crashes, so i think the previous formated the file system,

anyone has a idea on how to fix it?
[Galaxy S6 Q&A, Help & Troubleshooting] shoaib22:
same problem

any solution????
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
how did you managed to install custom recovery, everytime i try it, it stucks on the bootscreen
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
worked

allright, found the way to unbrick

even when the recovery is not working.

http://xdaforums.com/galaxy-s6/help/s6-demo-unit-rom-installed-t3162313#post61976594
[Galaxy S6 Q&A, Help & Troubleshooting] AndroidState:
Did you manage to flash 5.1.1?
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
no, it seems not working, TWRP recovery seems not working either
[Galaxy S6 Q&A, Help & Troubleshooting] shadowcliffs:
nevermind
[Galaxy S6 Q&A, Help & Troubleshooting] alejandroc17:
help me out please

i did everything you said and i was even succesful at installing the rom but im still stuck on the "samsung galaxy s6 live demo screen" anything you did differently that i didnt ?

---------- Post added at 02:46 AM ---------- Previous post was at 02:39 AM ----------

install this

W W W.dl.twrp.me/zeroflte/twrp-2.8.7.1-zeroflte.img.tar using odin, put your phone on download mode and using odin but the file on AP and click start, after that try booting up recovery mode like usual (volume up+home button+power button, release home button and power button after seeing the boot up screen keep holding the volume up until it boots the recovery mode)
[Galaxy S6 Q&A, Help & Troubleshooting] funspm:
The question whether it is possible to unlock the 3 gigabytes of memory? The firmware made myself, I ask, advertising is not present, the modem and from the bootloader demo
[Galaxy S6 Q&A, Help & Troubleshooting] aviam:
S6 Edge 925x recovery overwritten at startup, is there a way to make the rom stick

Hey Guys i was wandering if there was anyone that succeeded to flash a g925xxx LDU unit? for every time after i flash through odin i get to a gray screen with load bar filling halfway then says erasing and bar unloads.

im trying to get my rom to stick, but S6 G925x bootloader ? is preventing anything being overwritten at startup? i took out cm.bin and sboot.bin out with total commander. like described in one post where it said solved.

if i try adb side load it gives a error: closed. also says something like mdm wont allow factory reset wipe. I tried to flash twrp ,philz and right after flashing i try to get into recovery pressing up home n pwr before its overwritten to no avail!

If anyone has advice please reply

Thanks
[Galaxy S6 Q&A, Help & Troubleshooting] LyietSyied:
I am experiencing the same problem as you have. Have you found a way to get around the problem and or solve it? I sure could use the help.
[Galaxy S6 Q&A, Help & Troubleshooting] jd81:
Bootloader version

HI there. Great stuff. Got one question as I also have a demo unit (g920x) and I'm now in the process of install that ROM. Did u updated your boot loader to 5.1.1. before installing it? My demo unit only has the 5.02 one, but the instructions are saying u need to do that before being able to install the latest rom. Did you have to do any of that or did you go straight to flashing the later rom, without the boot loader? Really in need of some help here as I already tried almost everything and so far the best I've got was to get a recovery mode out of a cf root for a g920i (other than that, I only get the samsung logo - after it got bricked). Thanks.
[Galaxy S6 Q&A, Help & Troubleshooting] strahlermann:
Tried it last week, no luck so far, hopefully only driver problems with odin, or I am stuck at 5.02, but still not too bad.
[Galaxy S6 Q&A, Help & Troubleshooting] jd81:
Hi, I know it wasn't you who first said that found a way of installing a custom recovery on a s6 demo unit, but having in mind your post was in July :) maybe u already found a way in the meantime (and can share with the community). Any news? Were u in the end able to install a custom recovery? Please let me/us know. Thanks.

---------- Post added at 08:22 PM ---------- Previous post was at 08:18 PM ----------

Hi. Have u managed to install 5.1.1 on your S6 demo unit? If so, can u share it with us? I can't install custom recovery, reckon the main reason I've been unable to upgrade it so far. Can u help? Starting to get a bit desperate here. :) Thanks.
[Galaxy S6 Q&A, Help & Troubleshooting] jd81:
Hi. So u managed to install a custom rom on your live demo unit? Which one is yours? G920F or a g920i demo unit? for some reason I can't instal neither a custom recovery nor a custom rom… really wanted to install something with 5.1.1 but so far I'm stuck 5.0.2 (got a g920i ldu). Can you help? Any ideas? thanks.
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
I tried many roms, but for my device only 5.0.1 roms seem to work. There is someone who contacted me via pm. He managed to install 5.1.1 on his phone. I tried his rom, but it got me stucked in the bootscreen. I think beacause as you said, you (and me) are having a g920i Idu and he has got a g920f (his rom also indicated that).

While he is able to install 5.1.1 he is not able to get a root, you on the other hand can root your 5.0.1 rom.

Like I said I also got a 920i idu so i think it is restricted to 5.0.1. I think the best we can do for now is just wait for samsung for realeasing android M (6.0) for the s6. Maybe we have a bit more luck on that firmware.
[Galaxy S6 Q&A, Help & Troubleshooting] tilldaman:
You gotta confuse the system sense mine was 5.0.2. For sm g920x..there is no root method or any thing online ive researched .. use the twrp flash through odin for the sm g920t worked for me .. flashed it twice then went to bootloop so using the phone i went through factory whipe and bam .. fresh install unlocked no demo
[Galaxy S6 Q&A, Help & Troubleshooting] shadowcliffs:
Agree with the above post by afehst that there are at least two versions of g920x, one is g920f based and the other g920i based.

g920f based: can have TWRP installed thus can be factory reset, can install 5.1.1, i.e, can fully get rid of demo

g920i based: still having trouble installing TWRP, thus no factory reset, no 5.1.1. But can be rooted with cf-auto-root for g920i.
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
My G920X is stuck at the "live demo unit" boot screen after I tried to flash a stock 5.0.2 and 5.1.1.

Flashing 5.0.2 fails during the hidden.img,

flashing 5.1.1 suceeds but it doesn't boot.

I can root with the cf-auto-root but it still won't boot.

I cannot flash TWRP either (it will not enter the routine even when holding the right keys)
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
did you try the tutorial i wrote?
[Galaxy S6 Q&A, Help & Troubleshooting] :
Guys,I found today at a telecom retailer store that an Galaxy S6 LDU actually runs Android 5.1.1,but again I do not know where you can download the firmware for it
[Galaxy S6 Q&A, Help & Troubleshooting] ServError:
Could someone please start making dumps of LDU firmwares? It would be good to have this files available for research. Particularly if there's really a 5.1.1 LDU rom in the wild.
[Galaxy S6 Q&A, Help & Troubleshooting] lummujaj:
Its so easy to flash 5.1.1 on it. Just dowload regular g920F 5.1.1 delete some unnecesery files . And you will have a mini ipad device without all of his marketing stuff. Search jn google what you should and how you can delete from regular package of g920f. And if after 3h of searching contact me lummujaj@gmail.com
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
If you are referring to http://xdaforums.com/galaxy-s6/help/s6-demo-unit-rom-installed-t3162313#post61976594 yes I tried exactly that.

I grabbed various G920F firmwares (since I'm in Germany and all the regular S6 here are G920F not G920I).

I removed the modem.bin, cm.bin and sboot.bin.

I flashed the resulting tar file using Odin. Flashing 5.0.2 versions results in an error during the flashing of hidden.img.

Flashing 5.1.1 yields no error but it doesn't work (hangs at booting logo).
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
I live in the Netherlands, At the beginnig i thought my s6 demo would be a F variant too, but it wasnt.

I recommend you to firstly try to boot in the recovery, if it does, look at which version you have (should be the second line in red)

if you are not able to, flash the CF-Auto-Root-zeroflte-zerofltedv-smg920i.tar.md5 to see if it will boot in the recovery and look at your version. If it does, you probably want to download a I fimware variant.
[Galaxy S6 Q&A, Help & Troubleshooting] AlexBz94:
Do you believe me if i tell you that i have the same phone and did the same thing as you and it worked but than i went full dumb and instead of leaving it like that i also tryed to install an official rom without the bin files and ****ed it up really hard.... now the phone enters only in twrp recovery if i install it via odin but it just won't boot... in the best case it will boot till a point and than restart and boot again... or simply stay on the boot logo and doing the boot sound and restarting over and over again..... what do you think i could do... ?
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
Well, i was never able to boot in the twrp recovery after installing it.

If you managed to, i think you would have a x -variant (SM-G920X). If that is the case, you could just grab any 5.1.1 fimware (for SM-G920F) from your country and delete the files described in the tutorial. Than you will be able to flash it with odin, and it should boot up fine.

What you also can give a try, is to install this rom; http://xdaforums.com/galaxy-s6/development/rom-xtrestolite-deodexed-mod-edition-1-0-t3094423 with the tutorial described in that threat.
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
OK, here's the thing:

After flashing CF-Auto-Root-zeroflte-zerofltexx-smg920f.tar.md5, the second line in red reads:

LRX22G.G920FXXU1AOC5

However!

After flashing CF-Auto-Root-zeroftle-zerofltedv-smg920i.tar.md5, the second line in red reads:

LRX22G.G920IDVU1AOC6

So, the version shown obviously depends on whatever you flash, not what hardware it is.

I will try flashing various firmwares, I don't know what else to try to get faster results.
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
This means that you have a SM-G920F variant of the demo unit. I recommend you to either flash a SM-G920F 5.1.1 firmware from your own country (firstly delete the files mentioned in the tutorial) or either install a custom rom.
[Galaxy S6 Q&A, Help & Troubleshooting] AlexBz94:
well it's all good i succeeded everything work well with this xtrestolite rom... except the keyboard codes like *#0*# the test menu... i have no ideea why... because it worked on the g920x firmware...
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
No, see above (I edited my post). It depends on which auto-root i flash.
[Galaxy S6 Q&A, Help & Troubleshooting] afehst:
That could be. But I have a I SM-G920I one and was never able to boot in the recovery after flashing the auto root file for the SM-G920F one. So I think yours would be F
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
Well that means I'm back to square one.

Perhaps someone in the know can have a look at the bootlog?

It shows some errors (in Image FullSizeRender11):

"Blob verification failed

...

ODIN flag test failed, verity check failed. Aborting.

dm-verity verification failed.

Need to check DRK first."​
[Galaxy S6 Q&A, Help & Troubleshooting] ServError:
I've been running 5.1.1 for weeks now on any 920F rom (and probably 920I roms) without issues, but here's the thing. You have to flash the stock recovery for the rom you want to use. If you load up TWRP, the phone will boot once, and then stick on the LDU screen from that point forward until you replace the recovery. I found no ways around this yet, but honestly I'd rather have a working phone on the latest version than focus so much on TWRP when it only works properly on 5.0.2. You can always flash back later, but for the time being just use stock recovery.

Also note, when I did flash 5.1.1 and caused a soft-brick because of TWRP, ANYTHING I flashed did not help until I replaced the recovery. This includes rom downgrades, wipes, etc. Nothing. you MUST replace the recovery with stock.

I'm very skeptical about these claims of multiple G920X versions (based on I and F). I think people are just hitting different road blocks and rationalizing it as being on a different version when they're not. It's creating unnecessary confusion. If your bootloader is for a G920X, your end result at the end of the boot cycle is going to be the same as the rest of us.
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
OK, how do I do that? I take the .tar.md5 and remove everything inside except the recovery.img, flash it with ODIN and reboot? Am I not flashing the stock recovery when flashing everything together?

I was unable to flash TWRP (or unable to enter recovery anyway, despite pressing and holding the 3 buttons right after flashing finishes).

You are running the 5.1.1 on a G920X (LDU)?
[Galaxy S6 Q&A, Help & Troubleshooting] ServError:
Yep, 5.1.1 on an LDU, it's been a personal project of mine for the month. I'm going to collect odin files and make a proper thread with working information.

When you originally flashed the tar, did you leave the recovery in the image? If not, you need to reflash with it included. If you did leave it in, I'll need more details about which rom you flashed and your bootloader version. Then I can send you over some other files to try if all else fails.
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
Nice!

Sure, I leave in all .img files, I only remove the .bin files from the tar file.

So far I have tried all german 5.0.2 ROMs and also a german 5.1.1 ROM.

I do not get an error when flashing the 5.1.1 ROM but it hangs at the boot image.

I do get an error when flashing the 5.0.2 ROMs during the flashing of hidden.img.

---------- Post added at 05:29 PM ---------- Previous post was at 04:54 PM ----------

Woohoo! I tried another firmware, this time 5.0.2 G920IDVU1AOC6_G920INZC1AOC6_G920IDVU1AOC6_HOME.tar.md5,

removed the bin files, flashed it, NO ERROR during hidden.img and it works!
[Galaxy S6 Q&A, Help & Troubleshooting] ServError:
Nice. When the hidden fails you can just delete it. It usually means that your current PIT file does not have a big enough hidden partition to flash the image. Going back to 5.0.2 with the recovery intact was how I originally fixed the brick as well. You should be able to find a 5.1.1 file now and do the same to upgrade. If you want the exact version I used it was G920FXXU3QOJQ_G920FVFG3QOJQ_G920FXXU3QOJQ_HOME.tar.md5
[Galaxy S6 Q&A, Help & Troubleshooting] mielletseed:
And how to root the device with stock recovery? Any advice?

Thx
[Galaxy S6 Q&A, Help & Troubleshooting] Cachez:
Nah, I tried that as well and that didn't work. It Odin flashed the other partition and then it just hang there.
[Galaxy S6 Q&A, Help & Troubleshooting] ServError:
That would be related to the ROM in question then. Hidden is basically all junk/bloatware data. As long as the partition itself isn't flat out corrupted the system doesn't care about what's there other than to install APKs put inside on first boot.
[Galaxy S6 Q&A, Help & Troubleshooting] farlenkov:
Gear VR

Does somebody have any success with SM-G920X and Gear VR?
[Galaxy S6 Q&A, Help & Troubleshooting] Tunatje:
Yes it works. I tried it out.

Verstuurd vanaf mijn SM-G920F met Tapatalk
[Galaxy S6 Q&A, Help & Troubleshooting] superman56462:
galaxy s6 stuck on boot

can anyone help me with my live demo unit? I tried to install a stock rom and now is stuck at boot screen. Can someone provide me the stock rom for g920x? Thanks in advance.
[Galaxy S6 Q&A, Help & Troubleshooting] saidi ismail:
hlep me

Hello I own device s6 sm-920x Live Demo unit and I suffer from the problem of the pilot and I'm looking for a solution to this problem. Can you help me solve them and solve them for you before I hope you assistance as soon as possible
[Galaxy S6 Q&A, Help & Troubleshooting] BravoLima1:
Test unit and Gear VR

Did you experience any problems with the Gear VR and the test unit or did it run as well as normal handset ?
[Galaxy S6 Q&A, Help & Troubleshooting] Tunatje:
It worked perfectly. No hiccups or whatsoever. Watched a full movie on it.

Verstuurd vanaf mijn ONE A2003 met Tapatalk
[Galaxy S6 Q&A, Help & Troubleshooting] cameoalex:
Hello, I have a G920x LMY47X.G920XXXU1COH3_LLK. It caharges only at 70%. Any ideea how to fix this?

Thank you!
[Galaxy S6 Q&A, Help & Troubleshooting] polodeus:
Hi everyone i'm from poland so sorry for my english, yesterday i bought my Galaxy S6 LDU, but i can't turn the phone on. I Can only go into download mode, and when i try to install any rom in odin there is command : "there is no pit partition" and operation is failed.. Can anyone send me The PIT file for SM-G920X?
[Galaxy S6 Q&A, Help & Troubleshooting] w69:
I have demo unit of htc one M8. I rooted and installed custom rom. Its works like a normal phone now. Hope this can be applied on Samsung as well. Let me know if u already tried that. Someone is selling Samsung S7 live demo unit in my area. Im thinking to get it if it works like that.
[Galaxy S6 Q&A, Help & Troubleshooting] buzz71:
hello i have done this...now i can see 3 apps: "superuser ", "retail mode", and " samsung retail mode".

in "samsung retail mode" it ask to me after tap configuguration setting, "checkin admin password.

now this is my problem...who can help me?
[Galaxy S6 Q&A, Help & Troubleshooting] quatzar:
If you read my post I was saying it didn't work for me then.

follow this it is all there.

http://xdaforums.com/galaxy-s6/general/g920x-master-thread-guides-firmwares-t3267738
[Galaxy S6 Q&A, Help & Troubleshooting] alhajiwalkiya:
just updated a samsung s6 live demo unit but after installing the updates finger print and backup password are not responding...please can someone help me with solution?
[Galaxy S6 Q&A, Help & Troubleshooting] Zack Brown:
Im updated my samsung s6 LDU, but after installing the updates fingerprint doesn't work and disappear from setting ,any solution?

​