yashsingh1/xdaforums huggingface dataset:
[Verizon Samsung Galaxy S 4] vicariouscheese:
Just as a note that someone might want to put into the op: odin 3.10 did not work at all for me with these tars. Originally just got the newest odin, threw errors at me no matter what. odin 3 v1.85 worked (using this: http://www.androidrootz.com/2013/06/how-to-unroot-unbrick-galaxy-s4.html) and then I softbricked my phone again, and tried these tars with odin 3.09 and of course that worked. Seems 3.10 isn't completely backwards compatible, at least with these tars.
[Verizon Samsung Galaxy S 4] posaune76:
Used no-wipe to revert from NG6 to NC5 after repeated random reboots. Now can't get past unending android.process.acore errors. Please help!
[Verizon Samsung Galaxy S 4] Nergal di Cuthah:
From where did you get the information that it is possible the "downgrade"; I've never seen it mentioned as being do-able. I'm not saying it isn't possible, just that it sounds like a brash assumption.
[Verizon Samsung Galaxy S 4] posaune76:
http://xdaforums.com/galaxy-s4-verizon/general/downgrade-ng6-to-nc5-t2910933

User in post 6 cites no problems w/no-wipe.
[Verizon Samsung Galaxy S 4] Nergal di Cuthah:
Cool thanks (Disclosure: I edited above post while you were replying.

Edit

I assume you've considered the full wipe option?
[Verizon Samsung Galaxy S 4] posaune76:
I've considered the full-wipe, but I'd REALLY rather not if it can be avoided.
[Verizon Samsung Galaxy S 4] Fadtydawg:
I have down graded twice now with no issues. NG6 to NC5 with Odin 3.09v

Not an issue. Sg4 Sch-i545 now running NC5 again. :)
[Verizon Samsung Galaxy S 4] Nergal di Cuthah:
Ah good point. What version of odin was used in the failed attempt
[Verizon Samsung Galaxy S 4] posaune76:
3.09. Downloaded from this thread.

---------- Post added at 08:37 PM ---------- Previous post was at 08:33 PM ----------

Re-downloaded no-wipe from different mirror; flashing for 3rd time total. In the meantime, happy to take suggestions. Couldn't get past PIN-protected lockscreen because of repeated acore error. Can't type fast enough.
[Verizon Samsung Galaxy S 4] Fadtydawg:
B4 flashing. Uninstall safestrap. It will flash no problem. With SS installed it will take a few or several attempts but will work eventually. Store your SS app on extsdcard to reinstall after flash.
[Verizon Samsung Galaxy S 4] posaune76:
No safestrap. Not even rooted. Just keep poking at it?
[Verizon Samsung Galaxy S 4] Fadtydawg:
Reboot everything and keep at it. Try different USB port as well.
[Verizon Samsung Galaxy S 4] Nergal di Cuthah:
Good catch, try other usb cable as well
[Verizon Samsung Galaxy S 4] posaune76:
Hadn't thought about using a different USB port. If this attempt fails, will try. Try. Try again. Or will sleep on wet couch in hated neighbor's basement with a diseased dog. Wife's work phone.
[Verizon Samsung Galaxy S 4] Fadtydawg:
Only use Odin 3.09v . I've heard other versions not working.
[Verizon Samsung Galaxy S 4] Nergal di Cuthah:
Reflash ng, back-up, full wipe nc?...
[Verizon Samsung Galaxy S 4] Fadtydawg:
Hook up the phone to pc B4 opening odin. Seems to read USB port quicker. Also make sure you have Samsung drivers installed*
[Verizon Samsung Galaxy S 4] Nergal di Cuthah:
Being that the phone is a work phone, is it controlled by the corporate IT department? Is it knox-ing you out (not the boot knox that identifies if you tripped it, the knox in the gui)
[Verizon Samsung Galaxy S 4] Wi1son:
Make sure to check MD5 hash too.

SCH-I545 on HyperDrive 19
[Verizon Samsung Galaxy S 4] Fadtydawg:
How to Flash Official Firmware for Samsung Galaxy…: http://youtu.be/Ulz-1UYzHBA Odin

Follow the video. .just make sure to grab the correct build for your phone on the Sam Web site.
[Verizon Samsung Galaxy S 4] xtacybyme:
USA GS4 Verizon user.... can't get past verizon screen, phone vibrates 2 times, then just keeps rebooting itself, could someone please assist. I'm stumped.

Odin is giving me failed messages (highlighted below), have tried multiple pc's, multiple usb cables.

Thanks In Advance

Galaxy S4 USA Verizon

Odin Mode

Product Name: SCH-I545

Current Binary: Samsung Official

System Status: Official

Knox Kernal Lock: 0x0

Know Warranty Void: 0x0

CSB-Config-LSB: 0x30

Write Protection: Enable

Burst Mode: Enabled

Odin Ran with - SCH-I545_VZW_1_20140330160240_yni63xq6zh.tar.md5

<ID:0/006> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> I545VRUFNC5_I545VZWFNC5_I545VRUFNC5_HOME.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/006> Odin v.3 engine (ID:6)..

<ID:0/006> File analysis..

<ID:0/006> SetupConnection..

<ID:0/006> Initialzation..

<ID:0/006> Get PIT for mapping..

<ID:0/006> There is no PIT partition.

<OSM> All threads completed. (succeed 0 / failed 1)

<ID:0/006> Removed!!

<ID:0/006> Added!!

Odin Ran With - JFLTE_USA_VZW_16G.Pit

AND

SCH-I545_VZW_1_20140330160240_yni63xq6zh.tar.md5

<ID:0/006> Odin v.3 engine (ID:6)..

<ID:0/006> File analysis..

<ID:0/006> SetupConnection..

<ID:0/006> Initialzation..

<ID:0/006> Set PIT file..

<ID:0/006> DO NOT TURN OFF TARGET!!

<ID:0/006> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

<ID:0/006> Removed!!

<ID:0/006> Added!!
[Verizon Samsung Galaxy S 4] xtacybyme:
I've also tried whats suggested here - http://xdaforums.com/showthread.php?t=804695

with no success.

Any ideas on how to proceed?

Thank you
[Verizon Samsung Galaxy S 4] CheriePie:
delete... moved to Q&A thread.
[Verizon Samsung Galaxy S 4] idone:
I tried this for a friend today and got the same as you.

To get the phones pin in I click ok on the first 3 force closes, then use the power button to turn the screen off then on. At this point it let me enter the pin every time, but right after more acore crashes.

Then let phone redownload ng6 ota and let it run, back to ng6 but at least without acore crashes.(this phone rebooted itself like 10 times before the ota was finished downloading)

Tomorrow I will just pull /data from the phone because the friend did not want a factory reset, but does want back to NC5 because with the new software the phone keeps rebooting on her.

It will be a pain to select "install now" for the ota because of the persistent popups of acore crash.. but it's doable. I did it here.
[Verizon Samsung Galaxy S 4] Surge1223:
To all:

I get a lot of messages about no-wipe resulting in error messages when downgrading from NG6 to NC5. This is to be expected, you can't expect everything to just work out great when downgrading from a newer version to older, and you guys should be using full wipe anyways to get rid of data errors. If keeping your data is that important to you, then I suggest backing up to your pc first.

P.S. Be thankful you can even downgrade in the first place
[Verizon Samsung Galaxy S 4] silverfang77:
I'm attempting the rollback using the Full Wipe method. Is it normal for Odin 3.09 to sit saying <ID:0/005> SetupConnection? Is this something I just need to wait out or should it be doing something more?

It just said Operation Failed. Am I supposed to put my phone into Download Mode when doing this? My build number is K0549H.I545VRUFNG6. Do I use MK2?

edit: Got it. Thanks. Phone is back to the previous OS version and I'll never download another update without doing some serious research first.
[Verizon Samsung Galaxy S 4] tshelby73:
If I use the no wipe on mk2 will it upgrade like doing an ota. I need to upgrade my phone that's rooted but don't want to go all the way to ng6 or wipe my phone and apps.
[Verizon Samsung Galaxy S 4] LGtMgG2t:
For those of you having Odin failed messages then make sure you are running the app in Administrator mode. Right click on Odin and open as Administrator. Just a random thought...
[Verizon Samsung Galaxy S 4] thehoagiehut:
HELP!

I was on build KOT NG6, trying to downgrade to NC5. I did the no wipe method. Got a RESET! then PASS! on 3.09 but when phone rebooted, I got a "Unfortunately, the process android.process.acore has stopped." The same message keeps popping up if I hit OK and try to do anything. It keeps rebooting itself within 30 seconds of booting.

Please tell me I can get my phone back!
[Verizon Samsung Galaxy S 4] Fadtydawg:
I was on build KOT NG6, trying to downgrade to NC5. I did the no wipe method. Got a RESET! then PASS! on 3.09 but when phone rebooted, I got a "Unfortunately, the process android.process.acore has stopped." The same message keeps popping up if I hit OK and try to do anything. It keeps rebooting itself within 30 seconds of booting.

Please tell me I can get my phone back!

*****This will fix that issue...*****

"Unfortunately, the process android.process.acore has stopped."

Samsung Galaxy S 4 hard reset.

Force reset Reset the device: Press and hold for more than 7 seconds to reset the device if it has fatal errors or hang-ups, or freezes.

sgs4 hard reset or reset Galaxy S4: PRESS AND HOLD VOLUME UP + Home Button + Power. Keep holding HOME + Volume UP, but after vibrate release power.

samsung galaxy s4 hard reset

Unlock Galaxy S4 using hard reset

Turn the phone off.

Press and hold VOLUME UP and Home (middle) button

Press Power until the phone vibrate

Wait until you see the Android logo then release all the buttons.

Select Wipe data/Factory reset with VOLUME DOWN, press Power (right hand-side)

Select YES -- delete all user data with VOLUME DOWN and then press Power

After format, press Power again to reboot phone. (select reboot system now)
[Verizon Samsung Galaxy S 4] thehoagiehut:
I was hoping I didn't have to do lose my data but there's no avoiding it. Now, do you know why I failed to downgrade to NC5?
[Verizon Samsung Galaxy S 4] Fadtydawg:
I would try from start again. You may have missed a step somewhere. I use titanium backup for my apps and move anything important to my ext-sdcard incase of a full wipe. Keep my important apps and downloads there. Also I use nova launcher to quickly put my home screens... (Icons etc.) Back in place fast.
[Verizon Samsung Galaxy S 4] thehoagiehut:
Thanks. I will do that.
[Verizon Samsung Galaxy S 4] jrny99:
beautiful, worked like a charm, thank you for this. S4 i545 Verizon unlocked sim
[Verizon Samsung Galaxy S 4] Joshhayes801:
So I'm trying to fix this damn s4 my friends kid attempted to root it using towelroot and messed it up somehow. As soon as I get it booted I get "unfortunately, the process com.android.systemui has stopped. I've tried factory reset with no luck. I think this is my last option. I thought maybe I could flash a recovery through Odin and flash a stock Rom from there. Or should I just go ahead with the full wipe? The build number is NC5 and android version 4.4.2.
[Verizon Samsung Galaxy S 4] thehoagiehut:
Same thing happened to me when I tried to downgrade from ??6 down to nc5. Had to do a hard reset as outlined in post #142 in this thread :)
[Verizon Samsung Galaxy S 4] rdefino:
Little confused here, so hopefully someone can straighten me out.

If I flash "VRUFNC5 Full-Wipe ", will I lose the ability to install TWRP recovery for good? Can I flash, then root and install loki and TWRP?

Little lost on this.

Thanks!
[Verizon Samsung Galaxy S 4] Surge1223:
If your on mdk don't touch any files from this thread. Yes you will lose the ability to install a custom recovery
[Verizon Samsung Galaxy S 4] Legitsu:
ended up having todo a full-wipe back to nc5

everything went smooth pit-file re-partitiond correctly all is well

i545 -Verizon previously running kitpop 1.2
[Verizon Samsung Galaxy S 4] mattamous:
Great find!
[Verizon Samsung Galaxy S 4] talvigi:
I545VRUFNK1 wana go back to NC5 and try some CM12 on it

Hay, guys, i have a I545 with 32 GB, and VRUFNK1 installed in what i want is to go back to NC5 or any other version to test CM12 or other lollipop based ROMs, i have been able to root my phone but i can't install any Recovery in it non of them like CWM TWRP or SS

please help, can i go back and flash NC5 wide Odin 3.09 safely if yes what are the steps i have to do

by the way i have downloaded a this rom from androidfilehoste and do have it in my laptop "I545VRUFNC5_I545VZWFNC5_VZW.zip"

i also want to enable tethering in my phone.
[Verizon Samsung Galaxy S 4] Hightower24:
You can downgrade back to nc5. Just follow the steps on the first page. You won't be able to install cwm nor twrp. You'll only be able to install safestrap. From there you can flash TW based roms only. We can't flash cm nor aosp unless you are on mdk.
[Verizon Samsung Galaxy S 4] octantcomp:
Please help!! my S4 verizon when i see about phone :

Model number : GT-i9500

Android ver : 4.4.2

Baseband ver : I9500OLBFNB4

Kernel : 3.4.0-989434

Build number : DONGCHAO.612

Secure boot status : Type : samsung

Hardware ver : 1.06

Security soft ver : MDF v1.0 release 2

The seller said it was verizon s4 modded with i9500 ROM so it can get a proper 3g/LTE? for any simcard..

Then i try to root with flashing cwm via odin : FAIL! boot back still normal, Then i root with kingo root, success!! I install "my device" app from playstore, i got this :

Model : GT-I9500

Hardware : qcom

Board : MSM8960

Bootloader : I545VRUFNC2

Device : jfltevzw [isn't this verizon SCH-I545 S4?? Not i9500..]

Brand : verizon

Build : KOT49H.I9500XXUFNB7

Then I install "phone info" from playstore, i got this :

Brand : Verizon

Model : GT-I9500

device type : jfltevzw

product name : jfltezc

Bootloader : I545VRUFNC2

Baseband : I545VRUFNC2

PDA : I9500XXUFNB7

CSC : I545VZWFNC2

Then i install twrp and make it cannot boot (just can go to download mode).. Then I found this thread and success.. my phone normal again, but it show unknown sim (notification : phone activation this simcard is from unknown source) even if call, sms & data 3g working.. I think that i need to get the phone back like the first time : modded with i9500 ROM? But i didnt know how to do it..
[Verizon Samsung Galaxy S 4] bryantjopplin:
You just need the correct touchwiz ROM that works with safestrap and has the setup that works for your area.
[Verizon Samsung Galaxy S 4] octantcomp:
Thank you.. so it must be a zip file i9500 modded ROM that works for my area, and flash it with recovery from safestrap?
[Verizon Samsung Galaxy S 4] bryantjopplin:
That bootloader is locked down and must use a signed recovery (I think) and a signed kernel ( I think). You might want to search for one. I see people using this with ATT and T-Mobile so I believe you can get the VZW S4 that you have to work for you.
[Verizon Samsung Galaxy S 4] octantcomp:
Thank you very much I will search more for it.. or maybe i have to find that DONGCHAO.612 (show up in the first phone about - build number).
[Verizon Samsung Galaxy S 4] bryantjopplin:
Here is one

http://xdaforums.com/showthread.php?t=2560128

And I know hyperdrive is compatible with ATT and T-Mobile. Maybe asking sbreen what would be needed and he could help or I remember reading someone else in there that made it work. This thread is long and informational.

http://xdaforums.com/showthread.php?t=2520418
[Verizon Samsung Galaxy S 4] octantcomp:
I tried to flash hyperdrive RLS20 in safestrap 3.75 recovery but when its done the phone have a warning : system software not authorized by verizon has been found on your phone. Please turn off and go to nearest verizon store for help.

So i odin back to i545VRUFNC5..
[Verizon Samsung Galaxy S 4] bryantjopplin:
You have to use the stock kernel. Don't chose anything else but the stock kernel, if it don't let you choose one find a zip of it and flash after the ROM.
[Verizon Samsung Galaxy S 4] octantcomp:
yes i choose the first (talexop stockish kernel - if i remember correctly) (the 2 is ktoonz kernel & 3 is jeboo kernel), just now i try again with the 4, safestrap stock kernel.. when flashing not finished, screen go black and back to recovery..

So all 4 kernel is wrong??
[Verizon Samsung Galaxy S 4] bryantjopplin:
What version safe strap are you using? And did you wipe data,cache, and dalvik?
[Verizon Samsung Galaxy S 4] octantcomp:
at first i use 3.75, now i use 3.71.. did i have to activate rom-slot1 first then go back to rom slot stock rom then install that rom?
[Verizon Samsung Galaxy S 4] bryantjopplin:
Not that I am aware of. Install in stock slot. I would use only the ATT 3.72 or the 3.75 nothing else. I don't remember which one is needed
[Verizon Samsung Galaxy S 4] bryantjopplin:
Is 4 stock kernel? If so then yes
[Verizon Samsung Galaxy S 4] octantcomp:
4 is safestrap stock kernel..

And 1 thing i want to ask, the first time i unbox this phone, the about phone was :

Model number : GT-i9500

Android ver : 4.4.2

Baseband ver : I9500OLBFNB4

Kernel : 3.4.0-989434

Build number : DONGCHAO.612

Secure boot status : Type : samsung

Hardware ver : 1.06

Security soft ver : MDF v1.0 release 2

And it didnt have safestrap when booting.. Is it possible to flash i9500 rom to this phone??
[Verizon Samsung Galaxy S 4] bryantjopplin:
Using safestrap you should be able to. This bootloader is locked down.

---------- Post added at 12:18 PM ---------- Previous post was at 12:14 PM ----------

Have you been here

http://www.diypda.com/thread-1242046-1-1.html

---------- Post added at 12:22 PM ---------- Previous post was at 12:18 PM ----------

And this

http://www.openeducationsa.com/?p=68819
[Verizon Samsung Galaxy S 4] octantcomp:
Yes..!! that dongchao... but i cannot find the download..
[Verizon Samsung Galaxy S 4] bryantjopplin:
What carrier or band are you wanting to be on?
[Verizon Samsung Galaxy S 4] octantcomp:
No i dont think mine is a fake because i check the imei in the web "http://swappa.com/esn" shown verizon..

This is the Results

Blacklisted	Not Indicated

This device does not appear to be globally blacklisted.

Activation Status	Clear (Verizon)

Device appears to be activation ready.

Devices

Samsung Galaxy S 4 (Verizon) [SCH-I545]

---------- Post added at 12:31 AM ---------- Previous post was at 12:29 AM ----------

[/COLOR]

i'm in indonesia using indosat m3, i guess 800/1900 band..

---------- Post added at 01:26 AM ---------- Previous post was at 12:31 AM ----------

so i success flash the hyperdrive (with your safestrap and without flash super su root zip)..

flashed the superSU zip.. now searching for turning on the wifi..
[Verizon Samsung Galaxy S 4] meazz1:
Try this

https://www.androidfilehost.com/?fid=23487008491963696
[Verizon Samsung Galaxy S 4] octantcomp:
i just download this : gogolies-wififix-VZW-retail-NC5-w-modules-SS.zip

but haven't try.. i will download from your link too.. thank you..

My gsm signal gone every 3 or 4 times restart.. is there a modem or radio fix zip too??
[Verizon Samsung Galaxy S 4] bryantjopplin:
You figure it out
[Verizon Samsung Galaxy S 4] stackz07:
<ID:0/013> Added!!

<ID:0/013> Odin v.3 engine (ID:13)..

<ID:0/013> File analysis..

<ID:0/013> SetupConnection..

<ID:0/013> Initialzation..

<ID:0/013> Get PIT for mapping..

<ID:0/013> Firmware update start..

<ID:0/013> SingleDownload.

<ID:0/013> boot.img

<ID:0/013> NAND Write Start!!

<ID:0/013> FAIL! (Auth)

<ID:0/013>

<ID:0/013> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

this is when attempting to odin the kernal...?
[Verizon Samsung Galaxy S 4] sashaphily:
hello everyone!can somebody tell me please this is 4.4.2 update (I am on 4.3 mk2) ? If I will update to 4.4.2, and something will going bad... I will able to go back to 4.3 after?
[Nexus 5 Q&A, Help & Troubleshooting] iammrhappy123:
Going to buy my friends T Mobile N5 and would like to use it on Sprint network.

Ive researched this a little and I have seen people run into trouble, saying that Sprint wont activated it because it wasn't purchased from google or sprint.

All Nexus's from North America are the same from what I understand and should be able to be used on any carrier.

Anyone have any suggestions on whether this can be done?

Thanks
[Nexus 5 Q&A, Help & Troubleshooting] CRIME INC.:
Yes, all you need is a Sprint sim card

sent from my HAMMERHEAD
[Nexus 5 Q&A, Help & Troubleshooting] jt3:
More accurately, if your current LTE phone has a nano SIM, then you can simply pop it out, put it in your friend's Nexus 5 and it should work. The problem comes if you need a new SIM, or if your current SIM doesn't have LTE service assigned to it. In either of those cases, you'll need to contact Sprint either for a new SIM, or to activate LTE service. At that time, they may fight you, stating that the phone isn't supported. However, if you don't back down, ask for a supervisor, or try another store, eventually you will get a reasonable person.

Worst case, call the customer service line, and say that you got a Nexus 5 from Google, and need them to send you a new SIM card. They don't have to know you didn't actually buy it from Google. Again, it may take talking to a supervisor or even multiple calls, but eventually, you'll succeed.
[Nexus 5 Q&A, Help & Troubleshooting] Zepius:
1) the NA nexus 5 cannot be used on any carrier. it cannot be used on verizon. the other 3 major carriers are fine (tmobile, sprint, and att)

2) sprint has to add the IMEI to their databases to allow the CDMA portion to connect to their network. This is how the auth the phone to make phone calls, etc. They have added the IMEI from google play devices, and obviously the ones they sell. They do not have a list of the IMEIs tmobile sells.
[Nexus 5 Q&A, Help & Troubleshooting] jj14:
The Nexus 5 needs a Micro SIM. If you use a nano SIM, you will need an adapter

That was the case till recently. Last week, I saw a Sprint store employee call customer care for a potential customer and supposedly get the IMEI added into the Sprint database for a N5 bought from T-mo. The customer had to provide invoice etc to show that he owned the device, but I think they were able to get it sorted out.

YMMV of course.
[Nexus 5 Q&A, Help & Troubleshooting] jt3:
Duh. I knew that. I don't know why I said Nano. I came from a Galaxy S4 Active, and remember being happy that it still had a Micro SIM, the same as the N5. Thanks for the correction.

As for the IMEI issue, I guess when the OP said T-Mo Nexus 5, I thought Play Store N5 used on T-Mo. I didn't realize T-Mo was selling them directly, and thought only Sprint was doing that. (Play Store IMEIs are in Sprint's system.) My mistake. Still, I know that they can add IMEIs to their network, but it usually requires quite a battle. This is one of the key reasons I'm not on Sprint.
[Nexus 5 Q&A, Help & Troubleshooting] jj14:
I hear ya, and totally agree - it is a pain to get them to do something that is not their normal process! I'm still with them, just because they have better coverage outside of cities than T-Mo. But I'm getting tired of their terrible data speeds, and eCFSB issues - ugh
[Nexus 5 Q&A, Help & Troubleshooting] iammrhappy123:
Hey All!

Thanks for the replies! You all are very helpful. I wasn't expecting any replies haha.

I'm currently on Sprint iPhone 5 which uses a Micro Sim.

First time ever going to android, so I"m excited.

I just hope that when I call Sprint to activate the N5, they wont give me crap. And hopefully they add my IMEI to their network.

Or hopefully, when I just switch the SIM, it'll work off the bat lol.

Ill just keep being persistent at getting them to activate it if not.
[LG Optimus 4X HD] Umbardacil:
Hi Everyone

Could someone tell me what's the biggest SD card size allowed to use in Optimus 4XHD ?
[LG Optimus 4X HD] Flying_Bear:
i've seen someone using new sandisk 128gb, works fine on our device, he just had to reformat it

edit:

here we go http://xdaforums.com/showthread.php?t=2677677
[LG Optimus 4X HD] Umbardacil:
Thanks for your answer.

I read somewhere - don't remember where unfortunately, that SD Cards above 32GB (SDXC?) needs to be formated in FAT32. Is that what you mean? I've heard too, that some custom ROMs requires some other SD Card partition - extSD or something. Then when I'll format new card in FAT32 is it still possible to flash custom ROMs and will they handle this card?

Thanks in advance for your answer
[LG Optimus 4X HD] Flying_Bear:
i think that fat32 format will work for sure both on stock and on custom roms, but exfat needs additional drivers which are not present for stock, so will only work on (most) custom roms.