Hello Everyone, I have a friend that just got an Epic 4g touch, and has metroPCS, her phone is for sprint. I want to be able to Flash it so it would work with Metropcs. From the thread's ive seen so far it looks like it is only with a certain modem I was hoping to flash This ROM http://forum.xda-developers.com/showthread.php?t=2051374 It looks to be good. SO my question is this possible? Or do I just have to flash an old version of andoid for it to work? I am hoping to get this done before Friday, any help or direction would be greatly appreciated.
You can flash any Rom, kernel and modem for metro pcs, that's what I'm on right now. Just look up the flashing guide for metro pcs and set up everything through cdma workshop and the phone settings. Then flash the metro pcs mms fix in Android development for the type of Rom, whether it is aosp or touchwiz based.
Sent from my SPH-D710 using Tapatalk 4
FuMMoD said:
You can flash any Rom, kernel and modem for metro pcs, that's what I'm on right now. Just look up the flashing guide for metro pcs and set up everything through cdma workshop and the phone settings. Then flash the metro pcs mms fix in Android development for the type of Rom, whether it is aosp or touchwiz based.
Sent from my SPH-D710 using Tapatalk 4
Click to expand...
Click to collapse
So it is that easy. just flash the new rom and the go through CMDA workshop and some of the settings?
Yeah just do the cdma and phone settings first on a stock rooted Rom to make sure it works first.
http://forum.xda-developers.com/showthread.php?t=1288216
Sent from my SPH-D710 using Tapatalk 4
FuMMoD said:
Yeah just do the cdma and phone settings first on a stock rooted Rom to make sure it works first.
http://forum.xda-developers.com/showthread.php?t=1288216
Sent from my SPH-D710 using Tapatalk 4
Click to expand...
Click to collapse
Okay awesome thanks. Yeah looking forward to it working. so does it have to be a metropcs rom, or does any work?
You can flash anything I these forums. The only difference is you have to flash the metro pcs mms fix and "alternative carrier data" fix.
Sent from my SPH-D710 using Tapatalk 4
FuMMoD said:
You can flash anything I these forums. The only difference is you have to flash the metro pcs mms fix and "alternative carrier data" fix.
Sent from my SPH-D710 using Tapatalk 4
Click to expand...
Click to collapse
Where is the alternative carrier data fix?
https://db.tt/zKeL0ffq
Sent from my SPH-D710 using Tapatalk 4
sold1erjjt said:
Where is the alternative carrier data fix?
Click to expand...
Click to collapse
okay i flashed the new rom and am running GB08 kernal is GB27, and i cn't fifure out how to flash the prl and make it work for Metrocpcs. how doo you switch your number over btw
sold1erjjt said:
okay i flashed the new rom and am running GB08 kernal is GB27, and i cn't fifure out how to flash the prl and make it work for Metrocpcs. how doo you switch your number over btw
Click to expand...
Click to collapse
That flashing thread shows you how to flash prl. To switch your number over you need to have a cheapy phone activated already on Metro PCS and then use the information that phone is activated with on your E4GT. That thread has a lot of information and that's where I learned to flash. If anything post there and others more experience than I can help you better.
Related
So I did! Works flawless. Check the included pic. Everybody in both forums act like oh stay in your forums don't try it. We should all work together to better the community as a whole. I can confirm all works well, not a single issue.
ummm you obviously have an att s3 it says i747 in your pic. so why would it be a problem for you to flash a att rom? lol
i don't get the point of your post..
Crisisx1 said:
ummm you obviously have an att s3 it says i747 in your pic. so why would it be a problem for you to flash a att rom? lol
i don't get the point of your post..
Click to expand...
Click to collapse
it says that because hes running an at&t rom
Crisisx1 said:
ummm you obviously have an att s3 it says i747 in your pic. so why would it be a problem for you to flash a att rom? lol
i don't get the point of your post..
Click to expand...
Click to collapse
I obviously have a tmo T999 check the baseband, you might notice it is a LH2 I believe. Just trying to open doors for people for more options to flash is the point of the thread and hopefully bring some cross development to both forums.
wtf.. didn't know it would change your model number description.. anyways what rom is it?
Yeah I knew it would change my build prop, but had no idea the kernel would work. The Rom is sweet and it is listed at the bottom of the pic(not sure how to spell it) Love the options this might open up. Just understand, it will be unsupported, so you have to be able to trouble shoot it if any issues arise(none as of 3+ hours)
At&t MIUI Rom works too.
sswb27 said:
At&t MIUI Rom works too.
Click to expand...
Click to collapse
Indeed it does. I am running it right now.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Nice, Miui is one of my all time favs. So many options now!
is it safe to flash one of those rom from At&t thread? if yes do i still get 4g?
chiensibut said:
is it safe to flash one of those rom from At&t thread? if yes do i still get 4g?
Click to expand...
Click to collapse
Im running the jb leak on my at&t device...working flawless minus the known issues.
Sent from my Jelly Bean Infested S3™
Been running At&ts MiUi with the LeanKernel and everything is so smooth.
Sent from my SGH-T999 using Tapatalk 2
babymatteo said:
Been running At&ts MiUi with the LeanKernel and everything is so smooth.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
Does their version have the call echo fix?
Sent from my SGH-T999 using Tapatalk 2
This is awesome!!! I always suspected this to work, similar to the Skyrocket and Tmo GS2...
ikhtiaralam said:
Does their version have the call echo fix?
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
I wasn't aware of a fix for the call echo bug. Did I miss something somewhere?
Thx!
Sent from my SGH-T999 using xda app-developers app
Need Help Doing this.
I am new to this Android world. I came from AppleLand. I got T-mobile branded Galaxy S3 witch is SIM unlocked and currently using it with AT&T. I would like to flash AT&T rom on this t-mo Galaxy S3. I have no clue where to start and how to do it. I read on this forum that flash counter is may be a problem if I flash non stock ROM. My question is
1. Is it possible to flash ATT rom on T-Mo galaxy S3?
2. That counter thing is going to be a problem?
3. Is my phone has to be ROOTED first?
4. All AT&T apps will work?
5. If there is any problem, Can I go back to T-Mobile rom?
Thanks.
ilavu said:
I am new to this Android world. I came from AppleLand. I got T-mobile branded Galaxy S3 witch is SIM unlocked and currently using it with AT&T. I would like to flash AT&T rom on this t-mo Galaxy S3. I have no clue where to start and how to do it. I read on this forum that flash counter is may be a problem if I flash non stock ROM. My question is
1. Is it possible to flash ATT rom on T-Mo galaxy S3?
2. That counter thing is going to be a problem?
3. Is my phone has to be ROOTED first?
4. All AT&T apps will work?
5. If there is any problem, Can I go back to T-Mobile rom?
Thanks.
Click to expand...
Click to collapse
Welcome to Android :good:
1. Yes it is the people above your posts did
2. No it shouldn't be and if it is use an app called Triangleaway look for it here on xda
3. Yes you can look here for more info/help http://forum.xda-developers.com/showthread.php?t=1723175
4. As in Atnt Bloatware? You can try flashing a stock Atnt rom tha
5. Yes anytime by flashing a rom here
Note that there is always a chance of bricking your device so be careful and read up
babymatteo said:
Been running At&ts MiUi with the LeanKernel and everything is so smooth.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
My question to you is what for you do before flashing or did you just do the regular wipe cache and data factory reset? Also what recovery are you using?? Im on TWRP will that be an issue or should I go back to clockwork??
Sent from my SGH-T999 using xda premium
Can't wait to get some good MIUI ROMs on this phone, has anyone with a T999V tried flashing AT&T ROMs yet?
Just an update, I have flashed a working Sprint Rom, I had to edit the apn before flashing(if you don't know how to and what this is, don't do it you will not have data) but the Rom runs great. The Verizon Roms want to verify you are on Verizon, so I am working on it. So I have run AT&T and Sprint Roms with success with working data.
Hey guys I just thought I would share that I have successfully flashed both AT&T Rom along with a Verizon Rom (JellyBeans 9). I know the AT&T one is a little more known however I couldnt find one to do with Verizon. So all you have to do is download the Rom of your choice and flash it, then you have to flash the Tmobile Modem and you should be set to go! Hope this helps some people as I contemplated flashing a Verizon Rom on my Note 2. I have also tried International Roms with no luck sadly. This is a community based thread and I couldnt do it without some of the help from you guys, everyone deserves the "Thanks" I get!
Find stock Modem here: http://forum.xda-developers.com/showthread.php?t=2102380
Caution: This is not an official guide its just something I have found after flashing some ROMs I personally THINK MAJORITY of the ROMs should work but I take no responsibility for bricks.
I am going to start a list of Confirmed Roms if you have a Rom from a different carrier then please tell me and I will update the list, Thanks!
Verizon Roms:
Jelly 'Beans' - Build 14 - http://forum.xda-developers.com/showthread.php?t=2032447
Eclipse - http://forum.xda-developers.com/showthread.php?t=2128604
AT&T Roms:
Beanstock: http://forum.xda-developers.com/showthread.php?p=42111260
ParanoidAndroid Halo: http://rootzwiki.com/topic/40116-42...droid-capable-of-hybrid-mode-hello-halo-0618/
CleanROM ACE 4.5 - http://forum.xda-developers.com/showthread.php?t=1986893
JDEVIL MA6 - http://forum.xda-developers.com/showthread.php?t=2129031
JellyBeer - http://forum.xda-developers.com/showthread.php?t=2106244
Unofficial JellyBam - http://forum.xda-developers.com/showthread.php?t=2069164
Rootbox - http://forum.xda-developers.com/showthread.php?t=2127807
Novella Dos - http://forum.xda-developers.com/showthread.php?t=2111117
Unlocked Roms:
Wanam Lite - http://forum.xda-developers.com/showthread.php?t=2125101
Will someone with a t889v phone let me know if this method + (flashing t889v modem) works for us as well.
Re: Guide: Flashing Verizon/AT&T Roms
MCRHAZ said:
Will someone with a t889v phone let me know if this method + (flashing t889v modem) works for us as well.
Click to expand...
Click to collapse
Yes it works I started a thread about this a week ago in general forum. Flash rom then kernel and modem for tmobile. If you download a rom that doesn't give you data, once you flash rom and its booted up, turn on wifi and go to market to download hiapn and itll help restore apn settings giving you data again. Every rom ive tried has workes. Verizon, tmobile, sprint, and at&t.
Sent from my SCH-I605 using JellyBombed Tapatalk 2
Sorry I just want to make sure I understand this. So we download any kernel for the t-mobile note 2 and the modem. Then download an AT&T rom and flash it with the kernel and modem?
unoo said:
Sorry I just want to make sure I understand this. So we download any kernel for the t-mobile note 2 and the modem. Then download an AT&T rom and flash it with the kernel and modem?
Click to expand...
Click to collapse
No need. The kernel goes with the ROM.
All you should need is the modem.
Yeah no need to flash a different Kernel.
Re: Guide: Flashing Verizon/AT&T Roms
And what benefit do we get from doing this over a T-mobile ROM? Will Wi-Fi/usb tethering work?
Sent from my SGH-T889 using xda app-developers app
mj23kb24 said:
Yeah no need to flash a different Kernel.
Click to expand...
Click to collapse
Thanks!
Well say you see a cool ROM in the Verizon section but its unavailable for T Mobile. You can use this process to flash that much wanted ROM to your phone.
Anytime Glad I could help!
Re: Guide: Flashing Verizon/AT&T Roms
mj23kb24 said:
Well say you see a cool ROM in the Verizon section but its unavailable for T Mobile. You can use this process to flash that much wanted ROM to your phone.
Click to expand...
Click to collapse
This is frgin awesome news. I wondered if this was possible but was to afraid to try and didnt want to ask. Thanks. Soo just to be sure you can flash "any" verizon or att note 2 rom. Just as long as you flash the tmobile modem and you will be set? No brick and no problems? Of course except known issues?
Sent from my SGH-T889 using xda premium
shane1diamond said:
This is frgin awesome news. I wondered if this was possible but was to afraid to try and didnt want to ask. Thanks. Soo just to be sure you can flash "any" verizon or att note 2 rom. Just as long as you flash the tmobile modem and you will be set? No brick and no problems? Of course except known issues?
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
Yeah I am pretty sure man I mean if you have a certain Rom in mind I can always try it to see if it works. Thanks for the feedback!
Re: Guide: Flashing Verizon/AT&T Roms
mj23kb24 said:
Yeah I am pretty sure man I mean if you have a certain Rom in mind I can always try it to see if it works. Thanks for the feedback!
Click to expand...
Click to collapse
No worries. Thanks for the reply, I just stopped over to the att note 2 thread and answered my own question. It states in certain op that their rom is tmobile compatible. Thanks again.
Sent from my SGH-T889 using xda premium
shane1diamond said:
This is frgin awesome news. I wondered if this was possible but was to afraid to try and didnt want to ask. Thanks. Soo just to be sure you can flash "any" verizon or att note 2 rom. Just as long as you flash the tmobile modem and you will be set? No brick and no problems? Of course except known issues?
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
shane1diamond said:
No worries. Thanks for the reply, I just stopped over to the att note 2 thread and answered my own question. It states in certain op that their rom is tmobile compatible. Thanks again.
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
Glad you figured it out! Some of the threads state it like you said, majority of the Verizon ones don't thought, at least that is what I found.
Re: Guide: Flashing Verizon/AT&T Roms
I'm glad too thank you. Which rom have you tried btw? Thanks again
Sent from my HTC HD2 using xda premium
shane1diamond said:
I'm glad too thank you. Which rom have you tried btw? Thanks again
Sent from my HTC HD2 using xda premium
Click to expand...
Click to collapse
I tried jelly beans rom which was pretty good just didn't like battery life. I'm now on a AT&T ROM right now which is cleanrom I'm staying on this one for awhile.
Just wanted to say you really shouldn't even need to flash a modem unless the rom your wanting to flash contains a modem. If the rom contains a modem then you'll need to flash a T-Mobile modem otherwise you will still have the same modem you had before flashing.
Tiffany84 said:
Just wanted to say you really shouldn't even need to flash a modem unless the rom your wanting to flash contains a modem. If the rom contains a modem then you'll need to flash a T-Mobile modem otherwise you will still have the same modem you had before flashing.
Click to expand...
Click to collapse
Was gonna say the same thing
mj23kb24 said:
I tried jelly beans rom which was pretty good just didn't like battery life. I'm now on a AT&T ROM right now which is cleanrom I'm staying on this one for awhile.
Click to expand...
Click to collapse
I second cleanrom by far the best rom for our phones IMO.
Re: Guide: Flashing Verizon/AT&T Roms
micahman said:
I second cleanrom by far the best rom for our phones IMO.
Click to expand...
Click to collapse
Have you flashed Tweaked?
Sent from my SGH-T889 using xda premium
Hi,
Is there any way I can flash the updated LTE modem for the Note 2 on my phone WITHOUT updating my entire firmware??
I have a very customized rom (which I backed up), and the update has fcked it up.
PLEASE HELP.
If there is a way to ONLY flash the modem, please give me step-by-step directions. I want to restore my previous firmware.
Thank you in advance
Will flashing the updated modem get me LTE without updating my firmware?????????????????????
pappaellio said:
Will flashing the updated modem get me LTE without updating my firmware?????????????????????
Click to expand...
Click to collapse
I did once flash a modem it was ok untill things started to run into problem so I just flash jedi rom that comes options flashing old to new modems.
Sent from my SGH-T889 using xda app-developers app
Flash it and find out. In the time you put all those? You could have already checked and if not flashed the older modem.
Sent from my SGH-T889 using xda app-developers app
This is great lols
Sent from my SGH-T889 using Tapatalk 2
I flash modems all time for experimental purposes. Yes u can flash a modem using a custom recovery personally I use TWRP. I dont wipe anything just flash reboot and it should be ok.
Sent from my SGH-T889 using xda app-developers app
does anyone has a link for tmobile LTE modem, i can use too
also, any idea how we can get tmobile wifi calling on custom rom if it was not in the rom? or is it something only a rom developer should have added while making the rom?
thanks
cherry316316 said:
does anyone has a link for tmobile LTE modem, i can use too
also, any idea how we can get tmobile wifi calling on custom rom if it was not in the rom? or is it something only a rom developer should have added while making the rom?
thanks
Click to expand...
Click to collapse
modem can be found here http://forum.xda-developers.com/showthread.php?t=2564430
wifi calling only works on tmobile produced roms
mattlowry said:
modem can be found here http://forum.xda-developers.com/showthread.php?t=2564430
wifi calling only works on tmobile produced roms
Click to expand...
Click to collapse
thanks :good:
I have the LGOG and I'm flashing it to Boost Mobile. I need a ROM that doesn't have CM or if it does have CM it needs to have the diag port. Also I've been informed after it's flashed I CANNOT flash a ROM to it again. So if anyone is feeling nice and could inform me of the MOST stable and feature packed ROM for this phone I would be eternally grateful.
Thanks so much!
Enazsem said:
I have the LGOG and I'm flashing it to Boost Mobile. I need a ROM that doesn't have CM or if it does have CM it needs to have the diag port. Also I've been informed after it's flashed I CANNOT flash a ROM to it again. So if anyone is feeling nice and could inform me of the MOST stable and feature packed ROM for this phone I would be eternally grateful.
Thanks so much!
Click to expand...
Click to collapse
use lifeless,venom, or imperium those are your stock based choices found in the development section...unless you go with the actual stock rom... majority of our ROMs right now are aosp/cm based.. I might have left out a stock based choice... if I did it's cause those are only ones I've flashed
spleef said:
use lifeless,venom, or imperium those are your stock based choices found in the development section...unless you go with the actual stock rom... majority of our ROMs right now are aosp/cm based.. I might have left out a stock based choice... if I did it's cause those are only ones I've flashed
Click to expand...
Click to collapse
Thanks so much for your quick response. I noticed that most of the ROMs are in fact CM AOSP or AOKP and my flasher said neither would work. Going through the recent posts of ROMs I noticed most didn't mention what they used as source. So I figured I'd ask.
Sent from my Evo V 4G using xda app-developers app
Since it won't let me edit my post, I have a followup question. After the phone is flashed to Boost will I be able to flash another ROM? My flasher says I can't flash it after its flashed to Boost.
Sent from my Evo V 4G using xda app-developers app
Enazsem said:
Since it won't let me edit my post, I have a followup question. After the phone is flashed to Boost will I be able to flash another ROM? My flasher says I can't flash it after its flashed to Boost.
Sent from my Evo V 4G using xda app-developers app
Click to expand...
Click to collapse
honestly I don't know... but do somee research on flashing to another carrier not just for this phone but others and see if they are able to do it... but all in all if they say don't do it I wouldn't do it... no telling what/how they're going to flash you to another carrier so I would take their advice unless in your research you uncover something that debunks indefinitely what they're telling you
If I remember u can flash different roms but u need a back up of ya data settings such as aakey n all them important things
Sent from my LG-LS970 using Tapatalk 4 Beta
bigfdaddy2 said:
If I remember u can flash different roms but u need a back up of ya data settings such as aakey n all them important things
Sent from my LG-LS970 using Tapatalk 4 Beta
Click to expand...
Click to collapse
You guys rock! Helluva lot better than the guys over at AndroidForums!
U should be able to flash. But I never new that we could flash this phone to boost.
Sent from my LG-LS970 using Tapatalk 4
hazedabeast said:
U should be able to flash. But I never new that we could flash this phone to boost.
Sent from my LG-LS970 using Tapatalk 4
Click to expand...
Click to collapse
U can flash it to any CDMA provider but u will need to make sure u back up you're data nv items,data profile,aaa key,aaa password....
Sent from my LG-LS970 using Tapatalk 2
bigfdaddy2 said:
U can flash it to any CDMA provider but u will need to make sure u back up you're data nv items,data profile,aaa key,aaa password....
Sent from my LG-LS970 using Tapatalk 2
Click to expand...
Click to collapse
Can you help me flash this phone over to Boost? I'm getting all of the required progams, I was just going to do it myself but I think I'm going to need help. I have CDMA Workshop, QPST 2.7.355, QXDM 3.11.36, and WinHex. Just looking for some help. Really trying not to pay someone more than $25 to do this when I can almost do it myself.
bigfdaddy2 said:
U can flash it to any CDMA provider but u will need to make sure u back up you're data nv items,data profile,aaa key,aaa password....
Sent from my LG-LS970 using Tapatalk 2
Click to expand...
Click to collapse
Bump: I got it flashed over!!!! Just I have trouble with 3G I'm assuming the AAA and HA keys aren't sticking.
I've always been curious on how to do this. Can you provide some links please?
Just DM me or something.
Sent from my LG-LS970 using xda app-developers app
Enazsem said:
Just DM me or something.
Sent from my LG-LS970 using xda app-developers app
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2049701
Diag mode for cm10 /aosp
Sent from my LG-LS970 using xda premium
Hey all. I'm running CM 11 on my Sprint GS3, and like many other custom ROMs that weren't touchwiz. I've been getting very poor data connectivity. I called Sprint to complain about my horrible voice coverage and they wanted me to dial ##76782# or something along those lines and it wouldn't dial. I told the operator I was on a custom ROM and he said there was nothing he could do unless I had the stock ROM.
Will being in stock help? I'm loving 4.4, but the coverage is killing me. Thanks!
My bad, I didn't see you accidentally made 2 threads.
Flash back to stock. Then try the dialer thing. The data issues could be because it is a 4.4 ROM.
Flash back to stock, try dialer code, and use stock for a bit. Then if coverage doesn't improve, it could be the towers. They may be doing upgrades in your area.
-Whiplashh
Sent from my fixed Sprint Galaxy S3!
I flashed to a touch wiz variant and it works much better after doing the ##78765# or whatever the number was. I then restored after doing that and had the same issues. I guess I'm stuck with bad coverage or touch wiz.
I had the same issues on a 4.3 non touch wiz ROM previously, but didn't make the connection that it could be the ROM.
Sent from my SPH-L710 using xda app-developers app
radrobe said:
I flashed to a touch wiz variant and it works much better after doing the ##78765# or whatever the number was. I then restored after doing that and had the same issues. I guess I'm stuck with bad coverage or touch wiz.
I had the same issues on a 4.3 non touch wiz ROM previously, but didn't make the connection that it could be the ROM.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
There are flashable .zip files available for all the previous Sprint modems plus the current MK3, possibly a previous modem will help with better signal/data connectivity. Latest and greatest modem doesn't always work perfect for everyone. Some Sprint users have had success with the Virgin Mobile modems as well (MG2 version). I'm on VM and have successfully used both Sprint and VM modems interchangeably.
Mr. Struck said:
There are flashable .zip files available for all the previous Sprint modems plus the current MK3, possibly a previous modem will help with better signal/data connectivity. Latest and greatest modem doesn't always work perfect for everyone. Some Sprint users have had success with the Virgin Mobile modems as well (MG2 version). I'm on VM and have successfully used both Sprint and VM modems interchangeably.
Click to expand...
Click to collapse
Thanks! I'll try them out.
Sent from my Nexus 7 using Tapatalk 4
radrobe said:
Thanks! I'll try them out.
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
Sprint modems here: http://forum.xda-developers.com/showthread.php?t=1787677
VM modems here: http://forum.xda-developers.com/showthread.php?t=2531819
Mr. Struck said:
Sprint modems here: http://forum.xda-developers.com/showthread.php?t=1787677
VM modems here: http://forum.xda-developers.com/showthread.php?t=2531819
Click to expand...
Click to collapse
Hey, just to be clear, I just flash these modems after the I flash a ROM? Do I need wipe or format anything prior to flashing it?
Sent from my Nexus 7 using Tapatalk 4
radrobe said:
Hey, just to be clear, I just flash these modems after the I flash a ROM? Do I need wipe or format anything prior to flashing it?
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
Just wipe ur cache and dalvick cache then flash the modem and reboot then if ur on touchwiz do a prl update and profile update
I heard all aosp roms sucks with data. Something about using an outdated ril file that sprint doesn't open source anymore.
Coming from years with aosp ROMs on my phone, getting used to touchwiz sucks. But I do have to say 4.3 mk3 update doesn't lag or suck up my battery much. Just use a different launcher, I use nova beta without any problems changing DPI.
I do miss cyanogenmod lol
death by device