yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 4 General] cash2387:
The good thing is at least that once one of them release it we can all flash it..Im with Eastlink and I keep checking like 10 times a day...Driving me nuts >_<
[Galaxy Note 4 General] dbzgod:
Telus updated their software page and they removed the S5 and Note 4

as coming in September.

http://forum.telus.com/articles/53566/mobility/software-update-schedule

It not even listed anymore.

So guessing mid to end of October is looking like it now that Bell actually said something.

Save yourself the frustration of checking each day for the rest of September doubtful it will show.
[Galaxy Note 4 General] Joshua Mr PC Repair:
Yeah I'm glad I rooted and flashed PAC Rom 5.1.1 Beta 3
[Galaxy Note 4 General] funkydude101:
What's the best 5.1.1 rom option for Canadian note 4s? Just want something that's as close to stock as possible. Deodexed for xposed is important for me!
[Galaxy Note 4 General] tkjeeper:
Stock TW or AOSP? I'm assuming aosp because that's all that's available for 5.1.1 now?
[Galaxy Note 4 General] turilo:
There is no stock TW 5.1.1 option at the moment unfortunately
[Galaxy Note 4 General] funkydude101:
Oh shucks! Yes I was looking for TW!
[Galaxy Note 4 General] Ashwin Prabhunerurkar:
ok i bought this phone recently and i am confused with all the different carriers the the note 4 is locked to

mine was locked to bell and i unlocked it

Can you tell me which roms from which forums can be flashed on our phone

i keep hearing certain things like

1)Flash T mobile roms and then flash the wifi fix

Where is the wifi fix?

2)Which kernels work for us ?

3)i also heard tmobile 5.1.1 roms dont work for us as we dont have 5.1.1 yet.but i also was people saying they work but no network or data

i use this phone on airplane mod anyway so can i flash that.

I am obviously not a noob nor new to xda.Just lost in the vastness of note 4 forums
[Galaxy Note 4 General] sefrcoko:
If you unlocked your sim then it will work with other carriers.

Some international tons work with our N910W8, but yes the t-mobile roms work with our device for sure. You should flash a custom kernel to avoid bootloops with N910T roms. In some cases you also need a data fix. Search the Dynamic Pop thread for it.

Kernels that work for our device include Emotion, KT kernel, AEL, and Bioshock (maybe others too, but definitely these ones).

5.1.1 TW has not yet been released for our device. Yes these roms have been released for other variants like the N910T, but data does not work on our device if you flash it. If that doesn't matter to you then make a backup and give it a try :)
[Galaxy Note 4 General] Ashwin Prabhunerurkar:
yes i use this device as wifi only

not even a sim card in my note 4

so i think i will be good to go

Thank you for the response
[Galaxy Note 4 General] sefrcoko:
Yes, I haven't tried 5.1.1 yet but from what I read you should be fine given you don't need data. As always, make a backup first just in case :)
[Galaxy Note 4 General] shaggyskunk:
It looks like some people have gotten the Facts Wrong!

I'm running AOSP 5.1.1 Roms on my Note 4 SM-N910W8 - Data works just fine! No different kernel is required for SlimRemix 5.1.1 (what I'm running) CMRemix 5.1.1 or CM12.1 Roms - There ARE a couple of TW based Roms 5.01 where you probably have to flash a different kernel - But you will still have Data.

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] sefrcoko:
No, the facts are right but I was only referring to TouchWiz-based roms. Sure you can install aosp 5.1.1 no problem but you don't get the same exact s-pen functionality -- it's a different beast altogether ;). But if he's interested in aosp then there are s-pen workarounds of course (which I see you outlined nicely here: http://xdaforums.com/showthread.php?p=62991191) [emoji106]
[Galaxy Note 4 General] shaggyskunk:
I was specifically referring to the statement that TW based Lollipop 5.01 Roms don't have Data. At present - There are NO TW based 5.1.1 Roms.

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] force70:
Shaggy wussup dude long time no talk?

Theres a couple 5.1 TW roms out...TekHD has one, vision and ATJ also..no data for us though yet

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] shaggyskunk:
I'm good force - You?

I've been spending most of my time on the AOSP threads - Briefly ran TW when I updated the the 08/01 Firmware - And when I say briefly - Didn't even sign in - Just Stock Factory Reset - Odin TWRP 2.8.7.0 - Flashed back to SlimRemix ?

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] sefrcoko:
Ok, but I didn't say that TW 5.0.1 roms have no data...I was talking strictly about TW 5.1.1 for our device. Either way it's all good, seems like we're basically saying the same thing :) [emoji106]
[Galaxy Note 4 General] RoRo1990:
Hey all, I've ordered a note 4 as my Galaxy s2 is starting to show it's signs of ageing. I really enjoyed my s2 it was the bell model which ended up being compatible with the international roms. I'm going to be looking to root the note 4 when I obtain it to remove bloatware mainly and gain access to certain apps. I've used many roms on my s2 such as cm, slimsaber and resurrection. They were all great and stable I had 0 issues with them at all except the stock radio not working. Are there any stable roms for the Rogers note 4 similar to ones I mentioned for the s2?
[Galaxy Note 4 General] shaggyskunk:
I'm not really familiar with any of the TW based Roms - But for AOSP Roms - SlimRemix 5.1.1 - CMRemix 5.1.1 and CM12.1 are all very good

http://xdaforums.com/showthread.php?p=61835375

http://xdaforums.com/showthread.php?p=57692232

http://xdaforums.com/showthread.php?p=59731025

Slim Gapps 5.1 Mini or Zero

http://104.236.22.120/index.php?device=gapps/lollipop/5.1

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] RoRo1990:
Thanks for the quick reply will I be able to go straight to slimsaber from the stock rom? Or do I need to use odin to root before going to slim? How stable is slimremix? What features aren't working on it? I just got the note 4 an hr ago. I've uploaded the about device page just to confirm

http://imgur.com/5cWG8W8
[Galaxy Note 4 General] shaggyskunk:
I don't think that Slimsaber exists for the Note 4.

If you're planning on flashing any Rom - First thing you should be thinking of is having a Good Nandroid of the Stock Firmware!

You don't have to use CF Auto Root if you are going to Flash a Custom Rom.

You have the Samsung Drivers installed on your pc?

You have Odin 3.10.7 installed on your pc?

You have TWRP img.tar 2.8.7.0 installed on your pc?

You have Downloaded the Rom and Gapps that you want to Flash on your device on the External SD Card on your device?

After you have confirmed the above - Turn your device off - Remove the external sd card.

Turn your device on - Settings - Security - Turn off the Reactivation Lock - Developer Options - enable USB Debugging.

Connect your device to the pc and verify that they "see" each other.

Turn your device Off - Remove the battery and put it back in.

Boot into Download Mode - Power + Home + Volume Down.

Connect your device to the pc and Flash TWRP img.tar 2.8.7.0 with Odin - Reboot - to TWRP Recovery - Nandroid the stock ROM before you do ANYTHING else! TWRP 2.8.7.0 will ask you if you want to install SuperSU - Say Yes!

Power off the phone and remove the battery - insert the external sd card and power the phone back on.

Factory Reset - Advanced in TWRP - Manually Wipe System - Data and Caches - Flash Rom and Gapps - Reboot and setup - Settings - Developer Options - Enable Root Access - Apps and ADB - Have fun.

Yes SlimRemix V4.7 is very stable for me ?

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] RoRo1990:
Sorry I meant slimremix heh. I have all of those except TWRP img.tar 2.8.7.0.
[Galaxy Note 4 General] shaggyskunk:
https://dl.twrp.me/trltecan/

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] Ashwin Prabhunerurkar:
another quick question

Are there any ways to dual or multiboot this phone

Via multirom or other kernels
[Galaxy Note 4 General] RoRo1990:
Question again if you don't mind. Why not use cf method to root?
[Galaxy Note 4 General] shaggyskunk:
The only reason that I can think of for using CF Auto Root - is if you just want to run the Stock Firmware - Rooting by Flashing TWRP & a Custom Rom is just more efficient and just as effective - Without the potential for errors by the less experienced ?

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] RoRo1990:
kk. I'm looking at the slime roms but im not sure which folder to download from there are these options spr/mo/usc/xx
[Galaxy Note 4 General] shaggyskunk:
This one:

http://romwarehouse.com/zion959/SlimRemixOTA/SlimRemixStable/trltetmo/

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] RoRo1990:
Okay I got it working followed your directions perfectly. When I try launch Camera it gives me this message "unfortunately, camera has stopped". Also spen doesn't work at all eh?
[Galaxy Note 4 General] shaggyskunk:
Are you using the built-in Camera? A reboot should fix it - I'm not having any issues with Open Camera, Google Camera or the Built-in Camera

For the Spen - I use Note Buddy & CM-Spen Add on from the store to operate the Spen - and Papyrus (Now called Squid) for notes - There's also Spen command from G+ Community

https://plus.google.com/communities/104634120781641997201

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] RoRo1990:
Thanks rebooting fixed the camera. I'll have to check out the apps you mentioned.
[Galaxy Note 4 General] lebman1234:
Dang! So the note edge in Canada get 5.1.1 and still no 5.1.1 for the note 4! Cmon Samsung lol
[Galaxy Note 4 General] loofn:
Hi, anyone know how to fix the wifi password thing on t-mobile rom? Thanks!
[Galaxy Note 4 General] RoRo1990:
With the slim Rom can you adjust the brightness by sliding the status bar? Also how can I change the function of hardware keys?
[Galaxy Note 4 General] shaggyskunk:
Yeah - Settings - Interface - Status Bar

You might want to post questions and comments about SlimRemix on the SlimRemix thread - You're more likely to get answers faster ?

Sent From my SM-N910W8 Running SlimRemix v4.7
[Galaxy Note 4 General] :
Hi,

Just a reminder:

2. Member conduct.

2.3 Flaming / Lack of respect: XDA is about sharing and this does not involve virtual yelling (flaming) or rudeness. Flaming or posting with a lack of respect is unacceptable. Treat new members in the manner in which you would like to have been treated when you were a new member. When dealing with any member, provide them with guidance, advice and instructions when you can, showing them respect and courtesy. Never post in a demanding, argumentative, disrespectful or self-righteous manner.

2.4 Personal attacks, racial, political and / or religious discussions: XDA is a discussion forum about certain mobile phones. Mobile phones are not racial, political, religious or personally offensive and therefore, none of these types of discussions are permitted on XDA.

Let's stay on topic now.

Thank you.

The_Merovingian

Forum Moderator
[Galaxy Note 4 General] nadrojcote:
Is anyone successfully using 5.1.1 on their n910w8? As fas as I can see all custom rom developers are still waiting on someone to come out with a data fix.
[Galaxy Note 4 General] turilo:
If no 5.1.1 is out for n910w8 than data fix isn't possible without that source. Not even the Canadian note 4 edge I was successful with on making a fix. Wanted to shoot my head off ?
[Galaxy Note 4 General] shaggyskunk:
I assume that you're talking about TW based Roms - It would appear that I'm running SlimRemix 5.1.1 with No Data issues ?

Sent From my SM-N910W8 Running SlimRemix V4.8
[Galaxy Note 4 General] turilo:
Lol yes shaggy I am speaking of TW based roms ?
[Galaxy Note 4 General] shaggyskunk:
Thank gawd - I was getting worried that the interweb was playing tricks on me - Better lay off the Absinthe for a while - ?

Sent From my SM-N910W8 Running SlimRemix V4.8
[Galaxy Note 4 General] loofn:
Hey guys, is 42°C a normal idle temp for note 4? My old phone idle at 32°C, Im not sure about the note 4 since it has a more powerful cpu. Thanks
[Galaxy Note 4 General] shaggyskunk:
The idle CPU temp on mine is ~ 37°C with the Battery temp is ~ 29°C - Both temps are while the phone is not connected to the charger and obviously the screen is on so that I can give you this information ?

Sent From my SM-N910W8 Running SlimRemix V4.8
[Galaxy Note 4 General] loofn:
Im using tw based rom, is it the reason or sth wrong with the phone?
[Galaxy Note 4 General] sauron0101:
Quick question, does anyone know if the SM-910T (American T-Mobile version of Note 4) will work on Wind Mobile or is just the SM-910W8?
[Galaxy Note 4 General] force70:
Yes it will if unlocked.

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] puska:
Edit build.prop and change ro.securestorage from true to false. That solved it for me
[Galaxy Note 4 General] loofn:
Just wondering how is the battery life on aosp roms? Im currently get around 4h screen on time on tw rom. Thanks!
[Galaxy Note 4 General] shaggyskunk:
Really depends on your setup - Apps that you have running in the background etc - Nandroid your current Rom - Flash an AOSP Rom and Gapps - give it a couple of days - Do NOT restore your TW apps to the AOSP Rom.

Sent From my SM-N910W8 Running SlimRemix V4.8
[Galaxy Note 4 General] mrcil20:
Quick question. I want to give SlimRemix AOSP a try. I'm currently on Tekxodus TW rom. Do I need to odin back to stock base before flashing or simply factory reset, clean flash will be ok?

Thanks
[Galaxy Note 4 General] shaggyskunk:
Yeah - Factory Reset - Advanced in TWRP - Manually Wipe System - Data and Caches - Flash Rom and Gapps

Sent From my SM-N910W8 Running SlimRemix V4.8
[Galaxy Note 4 General] tkjeeper:
Buddy just got an s6, through Telus, I updated it and it's 5.1.1?
[Galaxy Note 4 General] force70:
Hmm videotron and eastlink have 5.1.1 up on sammobile but not telus. This must have just dropped or hes running custom?

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] tkjeeper:
Nope, just got the phone last night. Showed me at work, it was 5.0.2., so thought let's check, there was an update, 800 gb. Checked after and it was 5.1.1!
[Galaxy Note 4 General] martinomac:
Nice, I hope that means that our Note 4 is next up... I wish they would hurry the F up.
[Galaxy Note 4 General] PieOfJustice:
Well the only Carrier to acknowledge the update is Bell. Others like Rogers keep saying there is no more updates for the Note 4. The good news is we only need 1 Carrier to release an update. Then we can all have it.
[Galaxy Note 4 General] force70:
Absolutely.:thumbup:

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] unibomber:
http://144.76.118.99/direct-download-link/TLS-N910W8VLU1COI4-20151002161810.zip

5.1.1 from telus
[Galaxy Note 4 General] turilo:
damn and i just sold my note 4
[Galaxy Note 4 General] martinomac:
That's awesome, thanks for sharing! Have you tried it along with chainfire root?
[Galaxy Note 4 General] unibomber:
ill try it in a sec. just finishing work emails.
[Galaxy Note 4 General] Cryingmoose:
5.1.1 being pushed out now http://mobilesyrup.com/2015/10/02/samsung-galaxy-note-4-android-511/

http://samsung-updates.com/device/?id=SM-N910W8&details=Galaxy_Note_4__Canada
[Galaxy Note 4 General] unibomber:
chainfire root doesnt work. it keeps rebooting the phone
[Galaxy Note 4 General] gaganmohal:
Which new phone did you got or planning to buy? I am thinking of getting nexus 6P

---------- Post added at 10:45 AM ---------- Previous post was at 10:43 AM ----------

That wont work on 5.1.1, now we need a rooted kernel (permissive) to get root
[Galaxy Note 4 General] ksoze:
Downloading the update now, using [MENTION=3975929]zxz0O0[/MENTION] samfirm tool

http://xdaforums.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
[Galaxy Note 4 General] tkjeeper:
What'd you get for it? If you don't mind me asking
[Galaxy Note 4 General] cash2387:
Freakin A!! Thanks for the link. Downloading now...Only carrier I don't see on the list now is Eastlink >_<
[Galaxy Note 4 General] 32dave:
to change your csc code type in *#272*xxxxxxxxxxxxxxx# x being your IMEI number then select your carrier . IT will reset your phone

Thanks for letting us know about 5.1.1
[Galaxy Note 4 General] unibomber:
looks like emotion 21 5.1.1 kernel works along with the chainfire root

ugh forgot to wipe first hahah brb
[Galaxy Note 4 General] heathenlife:
Anyone flash this yet? Any bloat?
[Galaxy Note 4 General] cash2387:
Flashing now. Waiting for device to fully boot up. Will report back in a few.
[Galaxy Note 4 General] yobbei:
Can you let me know if it works? I need root. Thanks so much.
[Galaxy Note 4 General] unibomber:
that didnt work.
[Galaxy Note 4 General] heathenlife:
I'm downloading Bell's firmware. Once I have it I'll post it on Dropbox or something.
[Galaxy Note 4 General] cash2387:
I can confirm that it works! I did a dirty flash in Odin (Didn't bother to wipe just yet) and did not set my CSC either and I get Mobile Network just fine. RAM Management seems to work freakin sweet, On 4.4.4 I was able to play the Simpsons Tapped out with no problems. Upgrading to 5.0.1 killed it and made it super slow. Just opened it up now and working fantastic. Off a fresh reboot opening the Task Manager, I see 1.32 GB used for RAM.
[Galaxy Note 4 General] yobbei:
But no root though?
[Galaxy Note 4 General] force70:
There are 2 developers building roms from this already (one is already built) so root wont be far off.

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] heathenlife:
Here is the Bell Firmware on my Google Drive. (Ignore the network error if you get it, not sure whats up with Google)

Removed the link. The FW has been out for a week now, I think everyone has it now.

For those who dont want the 50kbps download speed of rapidshare.
[Galaxy Note 4 General] cash2387:
I haven't rooted my device yet. even on KitKat.
[Galaxy Note 4 General] Dmkarkutt:
Does anyone know if you uprade to 5.1.1 if you can roll back?
[Galaxy Note 4 General] nadrojcote:
You can install any rom you want, rolling back wont be a problem provided you're doing a clean install with odin.

---------- Post added at 07:26 PM ---------- Previous post was at 07:22 PM ----------

Thanks! I've been using slimremix for the last couple days to get 5.1.1, but I'm missing a lot of the features of touchwiz. AOSP lacks support for the S Pen, Auto brightness is horrible, doesn't have the really high brightness in daylight like touchwiz, no support for finger print reader, etc. While it is fast, the auto brightness kills my battery way too fast. I'll try this bell rom.
[Galaxy Note 4 General] heathenlife:
Yeah I came back because under AOSP or CM, the camera was horrible and S-Health was weird. So I just went to stock, rooted and uninstalled all the bloat.

Lot simpler
[Galaxy Note 4 General] ongxa:
Really You can root 5.1.1 by chainfire???
[Galaxy Note 4 General] yobbei:
Can you point me to those roms?

Thanks
[Galaxy Note 4 General] heathenlife:
Not yet. But give it a few days
[Galaxy Note 4 General] nadrojcote:
It's working. Thanks again. I used *#272*imei# to set my csc to rwc.
[Galaxy Note 4 General] force70:
Vision and emporia.

Both in Tmo android development

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] shaggyskunk:
Where are you guys seeing 5.1.1 on sammobile.com?

Most recent update I see is from 08/01

http://www.sammobile.com/firmwares/database/SM-N910W8/

Sent From my SM-N910W8 Running SlimRemix V4.9
[Galaxy Note 4 General] tkjeeper:
No Rogers release shag, telus and bell
[Galaxy Note 4 General] force70:
Its not up there yet shaggy...

But it is here.

http://samsung-updates.com/device/?id=SM-N910W8&details=Galaxy_Note_4__Canada

Sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] ksoze:
I'm using a windows utility called samfirm that checks, downloads and decrypts the files from Samsung Servers. Check a few posts back for a link if you're interested.
[Galaxy Note 4 General] shaggyskunk:
Yeah I misunderstood - I thought that I saw Sammobile.com - Not Samsung - lol ??

Sent From my SM-N910W8 Running SlimRemix V4.9
[Galaxy Note 4 General] heathenlife:
Is anyone else having a problem with the stock camera? It doesn't seem to focus very well
[Galaxy Note 4 General] nighthawk29:
Thanks for sharing that! I was going nuts with the slow ass 50Kbps speed elsewhere until now. Almost done!
[Galaxy Note 4 General] nadrojcote:
Mine is working the same as before.
[Galaxy Note 4 General] heathenlife:
Thanks.. I'll do a little troubleshooting
[Galaxy Note 4 General] nadrojcote:
Make sure your lens is clean and scratch free.
[Galaxy Note 4 General] heathenlife:
Its not that.. it focuses on things close by, but if I try to focus on something outside the house for example, it doesnt.. weird
[Galaxy Note 4 General] Idan73:
Did you get VoLTE?

Note 5 ?
[Galaxy Note 4 General] leepcharge:
Is it just me or does the home screen seem misaligned in the new update? All widgets seem to be shifted a bit to the right.
[Galaxy Note 4 General] jon3sh:
Bro you save me big time. Last time I downloaded from SamMobile it took me 3 months :D with this link not even 3 mins..
[Galaxy Note 4 General] cash2387:
Just checked my CSC and it did not change off ESK.
[Galaxy Note 4 General] rrupert:
Thanks heathenlife for the up! I've been looking for an update every day. My note is much happier.
[Galaxy Note 4 General] Idan73:
Just checked myself.

The answer is NO!

Not even a year after launch and Rogers gives up on Note4.

God, how much I hate Canadian providers bs. Yeah I know this has nothing to do with Bellus right now, since they didn't launch it yet, but even when they do, they're the same crap.

Note 5 ?
[Galaxy Note 4 General] loofn:
Just updated to 5.1.1, works great so far. Anyone know how to root it yet?
[Galaxy Note 4 General] baristaman:
I was able to get root on COI4 5.1.1. First, use Odin to install TWRP. Then install the 910T 5.1.1 Emotion r20 kernel from here. There is a r21 version but there have been quite a few reports of instability and that is my experience too. This WILL trip Knox, so be warned. This kernel is SELinux permissive and that is the key. Finally, flash the Beta SuperSU 2.49 from here. On boot, you will get FCs from Knox, so freeze all the Knox apps.
[Galaxy Note 4 General] anyachan:
Is the "time on battery" stat gone for anyone else?
[Galaxy Note 4 General] ciscostud:
Anyone get the update working with Wind mobile? I assume you would just need to change CSC...
[Galaxy Note 4 General] cash2387:
Yeah I don't have it either, looks like the battery stats was redesigned.

---------- Post added at 03:15 PM ---------- Previous post was at 03:10 PM ----------

Looks like Wind is still not on the update list at SamMobile or Samsung-updates . Neither is my carrier Eastlink, but you should be able to download the Telus version posted a few pages back and Odin that. I did a dirty flash and didn't wipe any data or change my CSC. When I went into recovery, it says my current CSC is still ESK for Eastlink.
[Galaxy Note 4 General] ciscostud:
Notice anything new with 5.1.1...anything exciting or just meh...?
[Galaxy Note 4 General] loofn:
Does the kernel work well with the rom since its t-mobile kernel? Thanks!
[Galaxy Note 4 General] force70:
Yes.

sent from my Nexus 6 or Note 4
[Galaxy Note 4 General] UnicornKaz:
I got all the instructions and am fine with most, but not sure how to go about doing that last part ( especially to freeze them before 1st boot ?? )... can you give a hint ? :p :D
[Galaxy Note 4 General] slayer2333:
Guys, do you know if its possible to downgrade again to KK from 5.1.1 ? Just hoping to give it a shot but still quite happy with KK battery life and snappiness.
[Galaxy Note 4 General] sefrcoko:
Yes I just odined the bell 5.1.1 update on my N910T and was able to later restore both my previous kitkat and lollipop backups. Had to use a custom kitkat or lollipop kernel to get them to boot of course. Your bootloader will stay updated to 5.1.1 but it doesn't stop you from booting pre-5.1.1 roms (at least on our variant).