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Root [GUIDE][CTmod] Rooting the Prevail [SPH-M820] for Dummies (written by a dummy)

Fantastic guide. Very easy to do. Now I just need to get a bigger sdcard (mines only 1gb from my old old phone) and setup the external /data.
 
Got mine refurbished and it came with no card hehe. My old lg shine had a 1gb card though that worked :D. Regardless i'm going to go pick up a 4 or 8gb card before this 7 year old sdcard dies unexpectedly :p

Just remember, with /data on the card, the faster the card (higher class) the faster the phone will be. I'm using a 16gb class 10, and its very snappy. My brother uses a 8gb class 6 (he is cheap). There is a noticeable difference between our phones. Not to say that his is unusable, but mine is a bit faster. So make sure you look into what class card you are buying. It does matter.
 
Just remember, with /data on the card, the faster the card (higher class) the faster the phone will be. I'm using a 16gb class 10, and its very snappy. My brother uses a 8gb class 6 (he is cheap). There is a noticeable difference between our phones. Not to say that his is unusable, but mine is a bit faster. So make sure you look into what class card you are buying. It does matter.

Alright thanks for the info. I Was going to get a class 6 but if i see a class 10 then I'll definitely get that instead
 
Just remember, with /data on the card, the faster the card (higher class) the faster the phone will be. I'm using a 16gb class 10, and its very snappy. My brother uses a 8gb class 6 (he is cheap). There is a noticeable difference between our phones. Not to say that his is unusable, but mine is a bit faster. So make sure you look into what class card you are buying. It does matter.

Speaking of that, now that kouma has released his partition tool, I've been thinking about adding or changing the guide to SSM. The only reason i never did in the first place was that I couldn't figure out ADB, and we would have to answer a hundred questions about "omg internul iz stil 200 megz rawr!?!?"

Now accepting all comments, questions, regrets, death threats, or marriage proposals...
 
Speaking of that, now that kouma has released his partition tool, I've been thinking about adding or changing the guide to SSM. The only reason i never did in the first place was that I couldn't figure out ADB, and we would have to answer a hundred questions about "omg internul iz stil 200 megz rawr!?!?"

Now accepting all comments, questions, regrets, death threats, or marriage proposals...
would be a good idea, i used it to get the extra for swap and worked great. adb was pretty easy too. just took me a couple of times to get the tool to work because had a hard time to get all the mounts unmounted. wouldn't work unless did that, thought just run tool and needed more then just that. but would be good and maybe easier.
make sure to get the entire procedure though so they don't have a problem like i did!
 
Speaking of that, now that kouma has released his partition tool, I've been thinking about adding or changing the guide to SSM. The only reason i never did in the first place was that I couldn't figure out ADB, and we would have to answer a hundred questions about "omg internul iz stil 200 megz rawr!?!?"

Now accepting all comments, questions, regrets, death threats, or marriage proposals...

If you do so, please make it abundantly clear that SSM DOES NOT SHOW THE EXTRA STORAGE IN THE SETTINGS MENU. "df" in terminal is the easiest way to see the extra storage (maybe throw up.a screen shot of the way it looks when set up correctly?)
 
Install terminal emulator from market.
type
Code:
df
If it shows a listing for /data/app and /data/dalvik-cache, then your good. :) Android can't see the extra space when you use ssm

I cant get my sd card partitioned. I have tried a bunch of times. Has anybody encountered this problem before. Im really stumped on this. I cant find any other threads on how I can resolve this. I have a 2 gig sd card that came with the phone. First I tried 1024M and my phone still says I have only 60MB of internal memory. I thought maybe I was being greedy so I tried 512M, didnt work, tried it 3 more times and i still cant get it to work. Any help on this subject would be greatly appreciated.

p.s. This is what comes up when I type df into the terminal.
$ export PATH=/data/local/bin:$PATH
$ df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 145132 80 145052 0% /dev
tmpfs 145132 0 145132 0% /mnt/asec
tmpfs 145132 0 145132 0% /mnt/obb
/dev/stl14 95744 8060 87684 8% /cache
/dev/stl12 164272 104756 59516 64% /system
/dev/stl13 163768 103300 60468 63% /data
/dev/block/vold/179:1
1453196 161500 1291696 11% /mnt/sdcard
df: /mnt/secure/asec: Permission denied
/dev/block/dm-0 3124 1284 1840 41% /mnt/asec/com.trixiesoft.clapp-1
/dev/block/dm-1 5200 4068 1132 78% /mnt/asec/uk.co.aifactory.chessfree-1
/dev/block/dm-2 2062 304 1758 15% /mnt/asec/jackpal.androidterm-1
/dev/block/dm-3 2062 951 1111 46% /mnt/asec/com.littlefatfish.photo-1
/dev/block/dm-4 4164 2796 1368 67% /mnt/asec/com.game.basketballshoot-1
/dev/block/dm-5 3124 1828 1296 59% /mnt/asec/com.shootinggames.bowman-1
/dev/block/dm-6 8312 6568 1744 79% /mnt/asec/com.RunnerGames.game.TinyRobots_New-1
/dev/block/dm-7 4164 2328 1836 56% /mnt/asec/com.forthblue.pool-1
/dev/block/dm-8 4164 3020 1144 73% /mnt/asec/logos.quiz.companies.game-1
/dev/block/dm-9 15576 14264 1312 92% /mnt/asec/com.instagram.android-1
/dev/block/dm-10 2062 513 1549 25% /mnt/asec/com.dotnetideas.chorechecklistlite-1
/dev/block/dm-11 26988 25184 1804 93% /mnt/asec/com.rovio.angrybirdsseasons-1
/dev/block/dm-12 2062 907 1155 44% /mnt/asec/com.a0soft.gphone.app2sd-1
/dev/block/dm-13 2062 657 1405 32% /mnt/asec/com.farproc.wifi.analyzer-1
/dev/block/dm-14 3124 1472 1652 47% /mnt/asec/com.kimusoft.voice_changer_chipmunk-1
/dev/block/dm-15 26988 25548 1440 95% /mnt/asec/com.funzio.crimecity-1
$
 
I cant get my sd card partitioned. I have tried a bunch of times. Has anybody encountered this problem before. Im really stumped on this. I cant find any other threads on how I can resolve this. I have a 2 gig sd card that came with the phone. First I tried 1024M and my phone still says I have only 60MB of internal memory. I thought maybe I was being greedy so I tried 512M, didnt work, tried it 3 more times and i still cant get it to work. Any help on this subject would be greatly appreciated.

Have you tried kouma's partitioning app?

http://www.mediafire.com/?ccpkkwk0bdeih1u

How are you setting up your koumamod settings?
Are there steps that are confusing you?
 
I dont think ive messed with the settings at all,should I have? I am a real noob and probably shouldnt be doing these things to my phone. The main reason why I wanted to root my phone was because of internal memory issue's. But I am a real fast learner and everyone associated with this forum are so helpfull with this. Im looking into that link that you posted right above, I really hope it works, all I want is to not see that dreadful "low space" icon. Again thank you for your suggestions:smokingsomb:

UPDATE: I tried the link in the post two post's above this one. when I went to open it it says windows can not open this file.
 
I dont think ive messed with the settings at all,should I have? I am a real noob and probably shouldnt be doing these things to my phone. The main reason why I wanted to root my phone was because of internal memory issue's. But I am a real fast learner and everyone associated with this forum are so helpfull with this. Im looking into that link that you posted right above, I really hope it works, all I want is to not see that dreadful "low space" icon. Again thank you for your suggestions:smokingsomb:

UPDATE: I tried the link in the post two post's above this one. when I went to open it it says windows can not open this file.

Read chapter 3. You will not see any extra space if you do not follow the whole guide. And the link is for an APP that you install ON THE PHONE :p
 
Ugh. Thanks so much for your help and research time put into developing all this stuff!
I followed the instructions given, all the way through Chapter 3, Step 4. So I've seen the new CTMod rom, and I changed the settings as requested for the Koumakernel.

I selected reboot from the menu, and now my phone is stuck at the Kouma Kernel 2.5 startup screen. Been there for 10 minutes - I realize it says it could take a while to boot up, but I'm guessing that's not what he meant.

What should I do / try? Thanks!
 
Ugh. Thanks so much for your help and research time put into developing all this stuff!
I followed the instructions given, all the way through Chapter 3, Step 4. So I've seen the new CTMod rom, and I changed the settings as requested for the Koumakernel.

I selected reboot from the menu, and now my phone is stuck at the Kouma Kernel 2.5 startup screen. Been there for 10 minutes - I realize it says it could take a while to boot up, but I'm guessing that's not what he meant.

What should I do / try? Thanks!

in cwm,
advanced> wipe dalvik
Then in mounts and storage> format sdext (still in cwm)
Then reboot... And wait at least 10 min before calling it a fail
 
Thank you LordVincent90. Thank you sooo much. I guess I must have over looked over that step in chapter 3. Im glad it was a simple fix. I bow to you. Thank you everyone who has made this possible.
 
Is any one experiencing problems while dialing or receiving calls? I follow the guide yesterday (excepted I didn't partition the sd card) and everything was working, but today I noticed that text messages where taking to long to arrive and I can't call or receive calls (the internet is still working).When I dial a number it remains in the "dialing" screen, but the call does not go through. I did the whole process a second time, but I still have the same problem. Any suggestions? Thanks!
 
Is any one experiencing problems while dialing or receiving calls? I follow the guide yesterday (excepted I didn't partition the sd card) and everything was working, but today I noticed that text messages where taking to long to arrive and I can't call or receive calls (the internet is still working).When I dial a number it remains in the "dialing" screen, but the call does not go through. I did the whole process a second time, but I still have the same problem. Any suggestions? Thanks!

I'm assuming that if you didn't partition the SD card, you also did NOT change the setings in koumamod (sorry, gotta say it) :rolleyes: Also gotta make sure you didn't restore any system data from titanium backup.

You are suffering from a poor network signal. As I live in a crappy reception area, I frequently get the "dialing" lockup. I don't send many text messages, but I have seen it drop as well. Reception can vary wildly when you get far from the tower, with no obvious reason. Weather, walls, airplanes, bird poop, color of shirt, score of local sporting event, can all affect reception for some stupid reason. Try walking to another area, and try starting calls when the signal is strong. If you start a call in a crap signal, then move to a strong signal, the phone can still get stuck on dialing.

in cwm,
advanced> wipe dalvik
Then in mounts and storage> format sdext (still in cwm)
Then reboot... And wait at least 10 min before calling it a fail

I've never had to do that after switching modes on initial boot and restarting.... I assumed if koumamod wasn't set to anything, nothing was loaded into SD-ext. But now that i think about it, blood did change koumamod to SSM initially for a while. I will add your info to the guide. Thanks vincent
 
I'm finally finished converting to SSM mode, but it was quite a pain in the ass. Heres what I ran into:

SDparter would go to slider screen but would not make partitions, said card was mounted even though it wasn't. I'm assuming I didn't unmount SD-ext, but I don't know how.

The only way I could find to move apps to system was through TB. I'd rather not have to add another program to the list of things to teach newbs to use. That's why I liked data mode along with the extra memory showing up in internal.

I tried to update koumamod to 1.7, but failed horribly. wouldn't install as a normal apk, wouldn't update the existing apk, tried deleting the old apk and moving to system/app but didn't work. Thats why I ended up reflashing CTmod.

I ended up having to do a full reflash, make the ext and swap partitions in CWM, then install and run TB, convert it to system, install SDparter and convert it to system, then unmount SD card and run SDparter to increase the partitions to full size. That seems way too complicated for this guide. I'll test for the rest of the week, and tinker more this weekend.

Happy Birthday America, don't get too drunk... :party:
 
Step seven: Click OPS, and select SPHM820.ops. Click Phone and select SPHM820_FA19_Rooted_PHONE.tar. Click PDA and select SPHM820_FA19_Rooted_PDA.tar. Leave the other ones blank. Those extra files are for fixing broken phones and should not be used.
I have SPHM820_FE16_ROOTED_PHONE.tar and SPHM820_FE16_ROOTED_PDA.tar.
Were the instructions written when FA was the latest version and have not been updated for FE or do I have the wrong files? The files I have came from SPHM820_FE16_ROOT_CWM.zip at http://androidforums.com/galaxy-pre...ock-factory-updated-02-23-new-fa19-image.html.
(I'm guessing it's right - mostly because the link where I got the FE files has FA in the link - but just want to check.)

Thank you.
 
Fe16 is the newest. Use those files.
You should have 3 (4 with ops)
Boot.zip
Phone.zip
Pda.zip
Use all three.
This video shows what to do
http://www.youtube.com/watch?v=sLIz7-iFXl8.
 
I have SPHM820_FE16_ROOTED_PHONE.tar and SPHM820_FE16_ROOTED_PDA.tar.
Were the instructions written when FA was the latest version and have not been updated for FE or do I have the wrong files? The files I have came from SPHM820_FE16_ROOT_CWM.zip at http://androidforums.com/galaxy-pre...ock-factory-updated-02-23-new-fa19-image.html.
(I'm guessing it's right - mostly because the link where I got the FE files has FA in the link - but just want to check.)

Thank you.

You are correct, I neglected to change FA19 to FE16 in the instructions after the update, its fixed now. Thanks
 
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