VoltronMaximus

First go to the ZTE Warp forums and give aenoch thanks. I just used his tutorial and modified it for our Prevail. Also download the DFS Software in his original post. http://androidforums.com/warp-all-things-root/532142-guide-how-change-your-msl-prl-not-cdma-workshop.html#post4474168 The DFS software is a free demo version, but it works perfectly fine, doesnt have a time-limit trial (like CDMA WS), and is much easier to navigate IMO.

If you are on CT Mod 3.75, you DO NOT need to change roms, the hidden menu has been put into CT Mod 3.75. Thanks Bloodawn!


As always make a backup in CWM. Youll really need to do this since you will more than likely need to change ROMs.

Download and flash Half Ass Rom. Make sure you do a wipe. http://androidforums.com/galaxy-prevail-all-things-root/511392-rom-gb-2-3-6-halfassrom-1-0-stock-ext4.html Thanks to Kouma for Half Ass Rom.

After flashed and booted up, go to the dialer and dial ##7678#, enter MSL, then select DM mode.

Connect phone to PC, and open DFS.

While the phone is in DM Mode, its good to make sure the screen stays on.

After the countdown screen, click on the "Ports" button (top left)ScreenHunter_06 Jun. 06 18.51.jpg

Then double click on SAMSUNG Android USB Diagnostic Serial PortScreenHunter_07 Jun. 06 18.53.jpg

Close the DFS Port Manager Window.

In the SPC box (top left) enter your MSL number, then click the blue arrow next to SPCScreenHunter_09 Jun. 06 19.09.jpg

In the Log, it should say DEVICE UNLOCKEDScreenHunter_10 Jun. 06 19.09.jpg

Click the "Programming" tab, then click the "NAM" tabScreenHunter_10 Jun. 06 19.12.jpg

Backup PRL by clicking "Read" then "Save" (bottom right)

Click "Load" then navigate to a PRL saved on your PCScreenHunter_10 Jun. 06 19.15.jpg

When you have selected a PRL you want, click on the red "Write" button.

In the Log, it should say OK.

Last step is to click the "Reset" button (top right). YOU MUST DO THIS FOR IT TO WORK!

Your phone will reboot, and you can check that it worked by going to Settings, About Phone, Status, and see that you are on the PRL you selected.

Make sure you go back into the dialer and ##7678#, MSL, and change your phone back out of DM mode.

Now you can go into CWM and restore your backup of the ROM you were on (make sure you wipe) and the PRL will stay changed.

I take no responsibility if you brick your phone, or anything bad that may happen, but everything should work fine if you follow instructions.

__________________
SNXTCHES GET STXTCHES

Last edited by VoltronMaximus; December 5th, 2012 at 01:28 PM.

Rarewolf

Thanks man! I was in need of a through guide. Ima do this when I get home. XD

__________________

VoltronMaximus

No problem dude. Just make sure you give aenoch thanks too. He was the real mastermind for this. I just wrote up and screenshot instructions for our Prevail.

wetbiker7

Awesome bro. Glad you got that sucker made. I know this will make a lot of people happy.

LOL. Monster told me about this method. I thought you guys would like it and could get it to work on the Prevail since I got it to work on my Marquee so easily.

If I find anything else that I think you guys can use I'll shoot it your way too.

__________________
Is there a reason you're not rooted yet??
Do the right thing and hit THANKS!

Last edited by wetbiker7; June 7th, 2012 at 02:20 AM. Reason: added info

VoltronMaximus

Its been reported that Norton is saying the download site is malicious. This is not true. Every other anti virus says its clean. Thats all, go about your business

out of ideas

glad you made this, i was having a pain with screenshots for some reason, then little man woke up. I'm kind of wondering what the point of backing up the previous prl, but thats probably only cuz im coming from a downloaded prl anyways, not the boost one.

Last edited by out of ideas; June 8th, 2012 at 04:50 PM.

cwhatever

i might be wrong but they are saying backup, meaning a cwm backup of settings and where you are now so when revert back to 2.5 to change prl you can restore to get back to now and phone will be the same as where you left off but diff prl.

__________________
EVERYTHING HAPPENS FOR A REASON/TODAY IS THE LAST DAY BEFORE TOMORROW SO USE IT WISELY !!!!!!!!! Thanks Button Is The Right Thing To Do!!
The One Who Dies With The Most Toys WINS
At First If You Don't Succeed Maybe This Is Not For You!!!!

out of ideas

nah, even in aenochs it said to backup the actual prl itself, in case something goes horribly wrong. but I have a bunch of zips with prls so I dont bother with that step.

I do know the cardinal rule "ALWAYS do a CWM backup". Funny enough, I have been on a hunt to find a way to switch prl in ctmod without switching roms. Finally gave up and went this route, backed up my currently fine running system, went back to a rooted image, switched prls, then restored. Now my restored version(ct 3.6) has NO Wifi (just sits there scanning, never even shows available networks) and my PRL put me on data roaming (YES ACTUAL roaming, wont let me make calls, but shows a roaming SID/indicator on the top and in the status section, and puts me through to a different carrier when I try to make a call) so I cant use the 1.5/3g. bleh, story of my life. back to the drawing board

Last edited by out of ideas; June 8th, 2012 at 05:04 PM.

cwhatever

i am on the stock one that came with phone and have never even played around with them. i live in south central fla and works great just have a dead spot here and there. so i have never needed to try anything different. if it ain't broke don't fix it!!!! lol. and when try to make better always a consequence with anything in life.

nrvlljr

Thanks so much for sharing this. It worked perfectly the first time.

Xruptor

Woot thanks for posting this! I dreaded having to do the whole process again I used last time.

out of ideas

yeah hear ya there. I used to be in a metro area and it worked great, so no need to mess with prls. Then I moved to the middle of nowhere with tons of dead zones so I started messing with them. In my case, I hardly see much difference just a few different spots I'll get service but nothing crazy. Still hoping I'll find "the one" but in the back of my mind I know that ain't happening.

cwhatever

man, sorry about that!!!! but think if dead spots for anyone anywhere fooling with stuff won't make a difference. there is a spot here that is like 10 mile diameter and all co workers have no service. sprint, i phones , nextel, verizon, laptops, ect.... no matter what you try to do it ain't gonna work. just the way it is!!!!!!

VoltronMaximus

You wouldnt happen to be part of the Dharma Initiative would you? Damn that Lost Island!

cwhatever

lol!!!!! no but is funny in that spot!!

wetbiker7

Just a heads up for those of you who experience worse signal. If you're still running Half Ass or CTMOD 2.5 you can always go in to phone settings and choose the update prl option. That will change your prl back to stock the easy way.

VoltronMaximus

Good idea!

cwhatever

now all we need is a way to change prl without a cp on the go???

UncleBud

I know it's in these threads somewhere, but call me lazy...

How again do I get that MSL?

never mind...

Last edited by UncleBud; June 9th, 2012 at 10:08 AM. Reason: found it

cwhatever

did you just call or how did you get it and i think you can get it this way but have to be on half ass rom to get into dialer menue to do this. anyways how did you get it??






First off I'll start by saying I have tried this on my phone , the official sprint update..

Anyway, I came across this screwing around a couple months ago when I wanted to reset my PRI, and apparently it still works with 2.1 roms.

Before doing this make sure you have aLogcat. Also its easier to find your MSL if you go into logcat and "clear log" before doing these steps.

**Refer to the attached picture if you get lost**

• So step 1 is to go to your dialer and enter ##DATA# or ##3282# which will bring up the EPST menu
• Once the menu pops up just select "View Mode"
• At this point you will see a screen with 3 selections.
• From here either press and hold the Home Key and select aLogcat if you ran it before, go to your tray and run Logcat.
• After opening Logcat it will update, once it finishes press "Menu" and "Pause" the log.
• Then scroll until you see a group of entries labeled "I/EpstBroadcastReciever" which should be green
• Locate the line that has "MSL Code=" at the end of it
• Edit: Or press Menu and Filter "MSL" (thanks wjason)

And there you have it, your 6-digit MSL code without ever calling sprint or using a computer

cwhatever

or just found (get my msl) from market and then run app and voila!!!!
much easier and quicket then phone call

use the one with the android not the keyboard looking one it won't work with our phone.

Last edited by cwhatever; June 9th, 2012 at 12:22 PM.

UncleBud

I used terminal
su
getprop ril.MSL

VoltronMaximus

Thats the easiest way I know of getting it.

cwhatever

cool i didn't even think of that, duhhh. well i used the app which was pretty easy now that have the app can get it in 3-5 sec's. well for others that don't use terminal that much this will be an easy way for them.

out of ideas

nah its mostly a boost/sprint dead zones. Well actually its a mountainy area where one side of the mountain is vz land, one side is tmobile, over here is sprint, over there is att etc. just a general PITA.

oh yeah I second "Get my MSL" simple couple second app kind of deal. Super easy for the noob types especially.

Lordvincent 90

In terminal type
The MSL must be in capitals

__________________
Y U NO BE SMARTER
ლ(ಠ益ಠლ)

wetbiker7

Once you get it write that sucker down so you don't forget it because it will not change until you upgrade your handset.

cwhatever

so it is always gonna be the same????? and that app is so easy to get it!!!!

VoltronMaximus

yeah its always the same unless you change it. I got mine wrote down old school style in a notebook.

cwhatever

ok, why would anyone change it or want/need to change it and what would changeing it do????????

wetbiker7

Change it to something easier to remember. lol

As far as I know it doesn't affect anything if you change it. The only reason I know that it changes when you change handsets is because it changed when I changed mine.

l33tgringo

I think I'm a pretty tech savy guy and absolutely read and follow instructions. I need help, the code ##7678# does not work for me. I get a recorded message that tells me that the number or code entered is wrong and to please check it and try again. What should I do? Anybody have any ideas because I'm stuck.

cwhatever

are you rooted what rom are you on,ctmod3.6?
if so you have to make a backup and then flash 2.5 or half ass rom to phone and then follow steps and then restore to get back to where you are now.
there is no hidden menue on 2.6 and up and most other roms.

VoltronMaximus

You need to be on a Rom that the ##7678# code works, like CTMod 2.5 or Half Ass Rom 1.0 or 2.0.

cwhatever

someone on the prevail no rooted forum said this and wonder if would be good to try while on 2.5 or 1/2 ass
Increased 3g speeds by changing

Home orig. vocoder = 13k

Home page vocoder = wild

roam orig. vocoder = 13k

3g speeds went to an average 0f 230-290kbps download to 600-980kbps and uploads from 80-150kbps up to 480-650kbps

Enter settings from dial pad ##3282# enter msl, select edit [enter msl] select advanced and change vocoder settings

VoltronMaximus

I tried this tweak a few months ago. I didnt notice a change in 3G speed. But it never hurts to try if itll work for you(well it could hurt a little )

wetbiker7

PRL's...... SPRINT+PRLS.zip

12123.zip

AprilThe20th

Do I have to use the roms stated here are can you do this using CM9?

cwhatever

i think MONSTER has a thread somewhere that you can do it on any rom (i think can't remember though)

wetbiker7

Here it is. This sucker was buried!!! lol

[SCRIPT]DM for CM7/CTMOD [UPDATE 2/10]

bricky

I guess I'm all turned around I have a warp but can't u just use s manager go into build prop and change prl and save ?

VoltronMaximus

I dont think it works that way. Its not as simple as just changing a number.

RTLflat

60751


60752

Last edited by RTLflat; September 2nd, 2012 at 12:55 AM.

rm50

Or odin back to stock Gingerbread

lettucefez

Would this still work on ctmod. 3.75?

Lordvincent 90

Yep. Now that ctmod is back to being based on a boost rom, the hidden menu should work just fine

VoltronMaximus

I edited the instructions telling people they no longer need to switch roms if on CT 3.75.

lettucefez

Thanks guys will try this while at work lol

bobl61

I can't get the device to 'unlock'. I chose SAMSUNG Android USB Diagnostic Serial Port, then "In the SPC box (top left) enter your MSL number, then click the blue arrow next to SPC". It just keps saying 'searching for devices'.

Lordvincent 90

What ROM are you using?