yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Q&A, Help & Troubleshooting] davidgozman:
So, I solved the problem.

If you want to downgrade your S4 I9505 from 4.4.2 to 4.3 Jelly Bean, you have to follow my steps. I'll attach all needed files below this post.

If you're on Lollipop and want to downgrade to 4.3 JB, first of all you have to downgrade your mobile to 4.4.2. Directly from Lollipop, it'll be not work.

Please don't forget to save all your data. If you won't do that, all your data will be lost. So, if it's done and you have downgraded your mobile to 4.4.2, then we can start with the flash to 4.3.

Therefore please download all attached files. Turn off your target, put the sim and sd out and set your mobile into the odin mode. Well, if it's done, open Odin 3.07 and UNCHECK the Auto reboot.

Then plug your mobile to the pc and choose in Bootloader the file bootloader_i9505_nb2.tar and in PDA the file Wifi_i9505_nb2.tar. Now you're able to downgrade the bootloader from 4.4.2 to 4.3. Only this bootloader is compatible with the Kitkat bootloader. If the flash is done, turn off your target and do the same. Set it in the Odin mode, please close Odin 3.07 before flash the mobile for second time. Now open Odin 3.07 again, uncheck the Auto reboot and choose bootloader with the wifi. Flash it again. After that, please set your mobile for the third time into the Odin mode and choose the file twrp-2.8.6.0-jfltexx.tar, you not may to uncheck the auto reboot. Flash the custom recovery. You'll need it for a custom installation of the NB2 Kernel. Please copy to your exterrnial SD Card the file named I9505_stock_nb2.zip. After flashing open custom recovery and wipe all your data and do the factory reset. You can wipe your data, if you'll go to advanced wipe and tick all the files short of the two lasts lines. So, if you did that, do the factory reset. After resetting, go back and choose your .zip-file on your external sd card. That will install a stock 4.3 kernel. After that turn off the mobile, if that'll be in the bootloop mode. Now open Odin mode again and flash firmware I9505ZHUENB2_I9505YZHENB2_I9505ZHUENB2_HOME.tar. You have to download the firmware I9505ZHUENB2.zip, extract the file .md5, open it, remove the file aboot.mbn and rename it to I9505ZHUENB2_I9505YZHENB2_I9505ZHUENB2_HOME.tar. After flashing, your mobile will reboot automatically. After installation you'll get a stock firmware 4.3 with the 4.3 bootloader. Only this firmware is compatible with 4.4 bootloader. After initialisation you'll be able to choose your language and set your options. I did that with my both S4 I9505 and they are exciting. The Android-Version 4.3 is very nice and advisable. If you have any questions, please write. Now you can try to flash your target. If my instruction was helpfull, please thanks my post.

Link to firmware: https://www.sammobile.com/firmwares/galaxy-s4/GT-I9505/TGY/download/I9505ZHUENB2/26144/

Good luck
[Galaxy S 4 Q&A, Help & Troubleshooting] audit13:
Congratulation on your successful downgrade.

I know some people like 4.3 but the phone won't have the latest security updates.
[Galaxy S 4 Q&A, Help & Troubleshooting] Manoj03m:
Not needed just go to the site called updato.com/firmwares where you will find all stock roms of samsung devices,you can download the rom and flash it using odin.
[Galaxy S 4 Q&A, Help & Troubleshooting] ze7zez:
You're wrong. There is no I9505ZHUENB2 firmware on updato. First check before you write anything.

What you wrote is interesting.

I will try, but first I have to go from LP to KK.

Can you provide the contents and checksums of the file I9505ZHUENB2.zip?

Perhaps I found a different source than the premium sammobile.

The files have the following checksums:

AP_I9505ZHUENB2_2543205_REV06_user_low_ship_MULTI_CERT.tar.md5 2e3d297721d946df34116fd7414413c8
BL_I9505ZHUENB2_2543205_REV06_user_low_ship_MULTI_CERT.tar.md5 386533b2d1ae1811c58702ee43b07c3f
CP_I9505ZHUENB2_2543205_REV06_user_low_ship_MULTI_CERT.tar.md5 23ef64e1a9199039a12b9ba516728603
CSC_YZH_I9505YZHENB2_2543205_REV06_user_low_ship_MULTI_CERT.tar.md5 4e8bf987bcc05686294011b0971be74e
[Galaxy S 4 Q&A, Help & Troubleshooting] MikeChannon:
test, please ignore
[Galaxy S 4 Q&A, Help & Troubleshooting] davidgozman:
It's the right package. I payed, to download that content from sammobile. I would upload that package in this thread, but I don' t really know, if I'm allowed to do that.
[Galaxy S 4 Q&A, Help & Troubleshooting] ze7zez:
I know that I9505ZHUENB2 is a valid package, but it is not on https://updato.com/firmwares.

You paid for access to the file hosted on sammobile, not for the file.

The file is owned by Samsung and as such is legal.
[Galaxy S 4 Q&A, Help & Troubleshooting] ze7zez:
If you do not check it yourself, you will not find out what is true.

Until now, I found a single-file I9505ZHUENB2 TGY tar on the network, which unfortunately is modified (system.img.ext4 has a significantly different date) and the original I9505ZHUENB2 TGY Repair Firmware (currently not available in open web).

So you should first use the single-file I9505ZHUENB2 TGY tar

Password:

https://firmware247.com

and then repair the system with the four-file I9505ZHUENB2 TGY Repair Firmware.

In the meantime, do not post in the Q&A KNOX thread, but here so that others can easily find information about the downgrade.
[Galaxy S 4 Q&A, Help & Troubleshooting] notlisiu1320:
Hey, I did according to this guide and actually everything works, but I noticed that I pull the batteries hard, I flashed KitKat stock and the problem disappeared
[Galaxy S 4 Q&A, Help & Troubleshooting] dave678:
Note 4 can be downgraded to Kitkat provided you're using an international Snapdragon model.
[Galaxy S6 Q&A, Help & Troubleshooting] t12icky0:
Is there a way to unlock the Sprint galaxy s6 edge for AT&T? For free? I see people offering it for free on here but wanted to see if it was something like the razr where you edited the nv files or something.

Thanks in advance
[Galaxy S6 Q&A, Help & Troubleshooting] dew3973:
I'm running a straight talk sim on my sprint galaxy s6
[Samsung Galaxy S7 Guides, News, & Discussion] Billyvnilly:
I just got a hold of a demo unit. It has the same passwords to remove retail mode and perform a factory reset as the s6

In the config for retail mode

First password: 5444

Second password: M729Q16K8546

Then say yes to factory reset.

On reset you can now stop retail mode. But the icon will never disappear from notification bar.

Now to just wait for custom ROM
[Samsung Galaxy S7 Guides, News, & Discussion] Billyvnilly:
I followed the steps in this thread for the SM-G920X link I did install package disabler pro to disable two apps, samsung retail and retail mode. I was able to force stop retail mode so the icon was gone. I had set the max reset time to 3hrs of inactivity, so I'm not sure if it would have reset my stuff or not, but I think i got it working just fine. Anyways. Onto Rom.

I used G930FXXU1APB6/XXV from the firmware thread: link

-on windows, so i have cygwin installed, extract the file so you have the AP, BL, and CSC files, put them in c:\cygwin\home\%user, remove the .md5 from the end (don't add it back after). there are 5 files you need to remove from the 4 tar files, you can look in the .tar files with 7zip to know which files are where.

tar --delete --file=[Filename here] hidden.img

tar --delete --file=[Filename here] cm.bin

tar --delete --file=[Filename here] sboot.bin

tar --delete --file=[Filename here] modem.bin <--this was the only file in CP, so I just didn't install CP in odin

tar --delete --file=[Filename here] ........pit

In odin, (3.10.7) add the AP, BL, and the CSC .tar files and start. When finished it will reboot to stock bootloader. select power off. hold down keys to get back to Odin. Now install under AP the below recovery:

I was able to successfully install recovery and root from the TWRP thread link

Once you get the G930F rom and recovery installed, its a good Idea to do a factory reset to remove any traces of the retail stuff.

I was also able to successfully install and run xposed. Use wanam v80.0 sdk23 arm64 link

Thanks to [MENTION=496332]seargent007[/MENTION] for the G920X writeup. I relied heavily on it to get G930F onto the phone.
[Samsung Galaxy S7 Guides, News, & Discussion] gohabs93:
Can you make calls? Don't demos usually have unknown IMEI?
[Samsung Galaxy S7 Guides, News, & Discussion] ServError:
Happy to hear you got it working! Had to stumble upon your post by chance though, your @ mention is one letter off ;)

I'll try to pick up one of these units at some point soon.
[Samsung Galaxy S7 Guides, News, & Discussion] Billyvnilly:
No, that is a hardware limitation. this is just changing the rom.

Oops about your name, :). Just FYI, I can't get gearVR running, I believe its due to region lock based on what I flashed. Any advice? It tells me Network error.
[Samsung Galaxy S7 Guides, News, & Discussion] ServError:
I'm not sure yet at this point since I don't have one. There's a chance we'd want to try a T-Mobile rom from the US or maybe we're dealing with something more difficult.
[Samsung Galaxy S7 Guides, News, & Discussion] chiikko561:
Hey did you make a backup of the stock firmware if so we would really appreciate it.
[Samsung Galaxy S7 Guides, News, & Discussion] Billyvnilly:
I'm sorry, I didn't.
[Samsung Galaxy S7 Guides, News, & Discussion] chwads2k8:
i have a 930x and flashed to 930f withoutremoving any image and full firmware have baseband too and reads sim just imei 00000 is your device similar
[Samsung Galaxy S7 Guides, News, & Discussion] the Doctor:
The "X" demo units can't be used like a phone, even with a different firmware.
[Samsung Galaxy S7 Guides, News, & Discussion] elroy944:
wich rom did you flash? i'm getting bootloop and no recovery, just a dead android with an exclamation mark!
[Samsung Galaxy S7 Guides, News, & Discussion] chwads2k8:
I used btu firmware latest one for uk. I did remove hidden sboot files but the left then second time round i used full firmware and flashed ok. Baseband shows fine everything seems ok

---------- Post added at 10:23 PM ---------- Previous post was at 10:22 PM ----------

X units usually dont flash full firmwares or show baseband or read sims
[Samsung Galaxy S7 Guides, News, & Discussion] mirceanu:
what is btu firmware ?
[Samsung Galaxy S7 Guides, News, & Discussion] Martin_HM:
How to remove PIT?

Hi,

I'm trying to accomplish the same with my S7 LDU.

I'm stumbling on this:

When trying to delete the PIT-file, Cygwin is giving me an error. Removal of all other files went well.

The CSC-Folder, which contains the .pit is "CSC_DBT_G930FDBT1APC5_CL7600968_QB9025732_REV00_user_low_ship.tar".

So I tried all of these:

tar --delete --file=CSC_DBT_G930FDBT1APC5_CL7600968_QB9025732_REV00_user_low_ship.tar ........pit

tar --delete --file=CSC_DBT_G930FDBT1APC5_CL7600968_QB9025732_REV00_user_low_ship.tar .pit

tar --delete --file=CSC_DBT_G930FDBT1APC5_CL7600968_QB9025732_REV00_user_low_ship.tar *.pit

tar --delete --file=CSC_DBT_G930FDBT1APC5_CL7600968_QB9025732_REV00_user_low_ship.tar HEROLTE_EUR_OPEN_HIDDEN60M.pit

The error message (I have a German Cygwin Version):

tar: CSC_DBT_G930FDBT1APC5_CL7600968_QB9025732_REV00_user_low_ship.tar: Funktion read fehlgeschlagen: Bad file descriptor

tar: Am Anfang des Mediums, beende jetzt. << Translate: At the start of the medium. Stop now >>

tar: Error is not recoverable: exiting now

Any idea how to do this correctly?
[Samsung Galaxy S7 Guides, News, & Discussion] aamszia:
i also need help .. i also have one Demo Unit ...
[Samsung Galaxy S7 Guides, News, & Discussion] Exynos8890:
What about thebattery? can you charge 100% or just 70%?
[Samsung Galaxy S7 Guides, News, & Discussion] lite426:
My S7 demo unit only charges to 70%. I wonder if [MENTION=496332]seargent007[/MENTION] has a fix. Many thanks
[Samsung Galaxy S7 Guides, News, & Discussion] flutenpsyte:
i am also having the same error, can anyone help?:crying:
[Samsung Galaxy S7 Guides, News, & Discussion] cameoalex:
s7 demo root?

Hello,

I have a s7 demo 930x with software installed on it (930f) . It is possible to root this phone without to come back the behavior of demo ( erase all movies and photos, play the demo movie, battery charge only at 70%)

regards!
[Samsung Galaxy S7 Guides, News, & Discussion] IvanN8458:
Hey guys, do you know if the G930X model is able to read Micro SD cards? Thanks in advance.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Once you flash the full stock firmware to it, removing demo limitations like battery charge etc, then the only hardware limitations are no modem and no fingerprint reader afaik
[Samsung Galaxy S7 Guides, News, & Discussion] IvanN8458:
Oh, I understand, I think my unit's MicroSD reader must be faulty. Thanks anyway, bro!
[Samsung Galaxy S7 Guides, News, & Discussion] Anonymus1725:
Change Motherboard

If I Change the Motherboard for one Galaxy s7 regular (example one for s7 from ATT Verizon or other carrier) can I use the phone as a regular s7? and will work the GSM LTE Networks and Touch ID??
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Fingerprint might not, not sure if the hardware is included with the demo unit, probably not, but modem should as it will be part of the motherboard
[Samsung Galaxy S7 Guides, News, & Discussion] IvanN8458:
Hi there. I have an S7 Demo and about 2 months ago I bought an G930AZ board to change and have signal, but after dissassemblying my Demo I realized that there's another problem in this model, in order to have signal you need to replace the little board in which the Usb port and the soft buttons are connected as this little board does not have the receptors to connect the little two antennas that come from the main board. This is due to the soft buttons are wrapped beneath the screen, so it's almost impossible to take it down without cracking it. If you can take down the screen that would be great as you will be able to replace the little board and also the fingerprint scanner.
[Samsung Galaxy S7 Guides, News, & Discussion] takerhbk:
There are many tutorials to take down the screen.
[Samsung Galaxy S7 Guides, News, & Discussion] Anonymus1725:
Well I bought a demo unit because mine s7 get wet and I had the problem to charge via USB and some times to get signal for the phone (just for my carrier, Wifi work good), after that I broke my screen and was more cheap for me buy a Demo unit. So I bought and I reemplace the motherboard days ago and I don't get signal of my carrier like the regular s7 mine and just can made calls and message via WIFI. Do I don't know if you need to connect those to get signal from your carrier. I can't check that because my mother board was damage to get signal to be wet.
[Samsung Galaxy S7 Guides, News, & Discussion] IvanN8458:
Yes, you need to connecto both whote and blue cables to the inferior board. Also, there are some little modules missing on the little board, which I think, have something to do with the signal.
[Samsung Galaxy S7 Guides, News, & Discussion] halx:
Reporting the success of TWRP installation of the Hydra ROM on the US Demo unit without disabling demo mode.

1. Wait for the battery draining to 0% using camera apps helps a lot to speed up the process).

2. Connect to laptop with Odin3, switch to download mode (Vol down + home + power).

3. Flash in TWRP. as AP.

4. Reboot to download again.

5. Flash BL and CP with Odin3.

6. Boot to TWRP recovery (Vol Up + Home + Power).

7. Wipe.Reboot.

8. Boot to TWRP recovery (Vol Up + Home + Power).

7. Upload ROM over USB (see Hydra doc).

8. Install.Reboot.

9. Be patient it takes up to 30 min to settle everything.

Note. I've been struggling for a while because the battery was at 0% so, when you see the battery screen after flashing, leave it charging (1A USB port is insufficient, replug to the charger quickly) for a while to like 30%. Not sure if that matter, but I've been flashing other ROMS with Odin3 prior to that without any success and used the "Nand erase" option several times. That could be a prerequisite, as I saw that idea on this forum.
[Samsung Galaxy S7 Guides, News, & Discussion] Youdoofus:
ok, so i got a live demo unit of Galaxy S7 and i rebooted it to odin mode and now it wont boot at all. Any ideas?
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] Delrei:
I replaced the battery in my Droid Turbo yesterday, and when I put in back together, it wouldn't turn on or charge. After doing some research, I realized that completely dead batteries can't be charged by the phone, and assumed my new battery was totally discharged. But when I put the old battery back in (that still had over 50% charge) it still did the same thing. I have searched high and low for an answer to this, and I can't find anything helpful. My phone is rooted, and running CM13.
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] mrkhigh:
Does it show a charging emblem?
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] Delrei:
Yes, an empty battery with a lightning bolt it it, for the first few second after plugging it in. Then it vibrates and switches to an empty battery with a question mark inside it, and will stay that way until unplugged. I left it on the original Turbo charger overnight and still nothing in the AM.
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] Delrei:
With a different charger (one for a Motorola Droid Maxx) it now just blinks the empty battery with a lightning bolt. Never throws the question mark on the Maxx charger, but still can't get it to boot up. I can boot into recovery, but after I select an option, it shuts off and blinks the battery again.

Also, idk if this is important or not, but it's supposed to be power+voldown to get into recovery, but holding voldown by itself takes it into recovery.
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] mrkhigh:
Any chance you damaged the original battery removing it?
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] schwinn8:
Agreed. Sounds like a bad battery or one that is miswired somehow (cold solder joint, burned trace, etc). You're probably just going to have to get back in there.
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] Delrei:
I opened it back up and didn't see anything that looks damaged, but I don't know much about hardware. I probably messed something up, though. I should just stick with software, modding, rooting, etc. Haven't bricked a phone yet, but this is the second one I've ruined by taking it apart.

Thanks guys! And by the way, I did just join to ask this question, but I've been reading these boards for 4 years now, and have learned a lot. This is the first place I go for any android questions, ROMs, etc.
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] schwinn8:
Sorry to hear that. Soldering seems easy, but requires a bit of skill that makes SMT work a bit harder. I wouldn't give up yet - I'd say give it another shot if you can... can't break it any worse, after all! I saw a few videos online about SMT soldering (from ifixit, I think) - the skills there look like they might help, in general...
[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] Marky__Mark:
Were you able to fix this? I ran into the same problem.
[Galaxy S 4 Q&A, Help & Troubleshooting] bionicbouncer:
Hello, I was tinkering around with my S4 and now anytime I try to go to my recovery it says to take it to a Verizon store and it is locked. I am willing to do anything just so I have a recovery. It is rooted right now
[Galaxy S 4 Q&A, Help & Troubleshooting] lucky19x3:
http://xdaforums.com/galaxy-s4-verizon/development/stang5litre-ediition-5-0-t3132555/page437

this worked for me

---------- Post added at 01:39 AM ---------- Previous post was at 01:37 AM ----------

see post 4368 it is an of1 recovery
[LG V10 General] Akhayev:
First since lg L7 I've been buying all LG phones i was a fan of LG ..but now after G4 and G5 i am going back to samsung or nexus devices .. I had enough of LG no updates i had my last update on November.. No support no bootloader unlock no root .. And a lot of bugs and hardware issues ..after few days of using V10 the volume down button doesn't work .. And even with updates Korea goes first and then Turkia and Poland and it keeps going like that then the last one is international variant so i am sick of waiting for updates and i think theres many other ppl who are selling their LG phones and going back to king of phones samsung and nexus
[LG V10 General] jcnbama:
Huntsville?!? Hah. Howdy neighbor!
[LG V10 General] arash64a:
Hastala vista LG.

SHAME ON YOU LG...
[LG V10 General] OnceAMatrixMan:
Wow I don't get it. I love love love this phone. Great battery life, never any lag, great radios, I even love the second screen - it may be my favorite feature.

But to each his or her own. Good luck with new phone
[LG V10 General] evo4g63t:
Interesting considering LG makes the Nexus 5X, Samsung has gone the apple route by making batteries not removable. Not to mention the Qualcomm 820 overheating issues (Samsung S7) causing the cpu to throttle back performance.

To each is own though, I love the second screen, the performance, the removable battery and external memory support.

Have fun with Samsung with their extremely bloated phones and their apple wannabe behavior.
[LG V10 General] donwhall70:
If I wanted an iPhone, I'd buy an iPhone.. Not a Samsung knockoff.
[LG V10 General] faearai01:
The good thing about this is that there are many new phones on the second hand market plus companies get money for free. And some guys never will be happy and will never find the perfect phone since there are new devices knocking on the door. If you wanna be happy, buy an iPhone. They release phones only once a year so one can be happy for at least one hole year. What's the problem with LG - an Korean company - to first release software in their home market? Also they sell more phones in Korea than in the US.
[LG V10 General] NowVoyager:
People like to whine...LG v10 is a fabulous phone. No complaints from this power user!
[LG V10 General] IamPro:
See u later while I rock this ROOTED Verizon V10 :)
[LG V10 General] tomplatz:
Was just about to sell mine for a nexus 6p but now with root will hold off and see how this changes things
[Galaxy Grand Prime Q&A, Help & Troubleshooting] SweenJM:
So I've got my SM-G530P all rooted and everything just so, and it works great, zero issues, except for one thing. Upon cycling the power ( either power off or restart) the phone loses my micro sd card (I've tried 3 different brands...ADATA, PNY, and Sandisk.....all 32gb, all UHS-3). now I can go in and mount it again, and it works fine. it tells me it is damaged, forces format, and then it works perfectly till power cycle. I've tested all the micro sd cards in my PC, and I have tried to see if I could get the same results in my NVidia shield.......and I have not. Two of the sdcards are new, and the other is low mileage. so if it isn't the memory cards, it has to be the phone, right? the cards fit snuggly in the expansion slot, and they all work fine and dandy in any device..........even my grand prime, until I cycle the power on it, upon boot, it does not show the sd card in the storage manager, but when I hit mount, it says it is damaged, and makes me format the card.....and after that, works fine until power cycle.... Any help would be greatly appreciated. If you need more info I will do all I can to provide it. As XDA is really the only place for legit and concise mobile device info, I figured this was the place to turn to.

running android 5.1.1

rooted with TrapKernel AOI1 from shinyside, obtained right here on xda.....and performed with Odin 3.10.7
[Galaxy Grand Prime Q&A, Help & Troubleshooting] SweenJM:
bump

bump. please help......i dont wanna have to go back to the crappy stock sprint software
[Galaxy Grand Prime Q&A, Help & Troubleshooting] SweenJM:
one last bump

i dont wanna be "that guy" who bumps his own thread, but i could use some help.
[One (M8) Q&A, Help & Troubleshooting] mohamed7egazy:
that question in my mind all time

is the htc one m8 google play edition will get android n official stable ota update from google or google will stop to send updates and will stop in marshmallow ?? :confused: :confused:
[One (M8) Q&A, Help & Troubleshooting] danial.aw:
My opinion is that probably not