yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Exhibit 4G] dwolfman:
So I've been trying out the CM11 OS2SD ROM (the last one in December), but I need to switch back as the bugs are just too much. I need my phone to work and stay charged, which is not happening on this ROM. And since it looks like CM12 is being worked on now that it's not likely the bugs in CM11 OS2SD will get fixed any time soon.

So first the problem. My USB socket on the phone is a little iffy, so I know that is where most of the problem is coming in. However, on the CM11 OS2SD ROM I'm using right now (the one dated 12/25) it frequently says it is plugged in, but is not charging. I've actually seen times where the battery monitor I'm using shows it has discharged the battery as much as 20% before I caught it, yet the status bar battery icon shows it as full and plugged in. On the older ROMs it didn't do this, so something isn't right with how the ROM handles the charging circuits in the phone. Plus, I've had frequent periods of "cpu hogging" (massive CPU load that doesn't seem to come from any one source and that doesn't seem to show up in OS Monitor) that can end up in a crash-reboot of the phone.

So as a result, I want to switch back to an older version of the CM11 ROM. I was using one of the November builds for quite a while, only having to put up with an occasional crash-reboot (the current ROM seems to do this at least every other day, the older one could go a whole week and maybe have it happen only once). What is the process to undo what was done to the phone for the OS2SD build to be loaded?
[Samsung Galaxy Exhibit 4G] brenecarias:
can't install :(

I have a problem after installing it via cwm and rebooting, the ensender shows me a screen where I order a factory reset but when I was I do not ensiende the phone
[Samsung Galaxy Exhibit 4G] german221:
CM 12 Android is upgrading every boot

Ever since I flashed Cyanogenmod 12 every time I reboot it says "android is upgrading optimizing app 1 of 1" and it takes about 8 minutes. There are no odex files in data/app so that cant be the problem. Someone please help. The first time I flashed CM 12 I wiped data and factory reseted but since i seen this happen I flashed Cm 12 again but this time I formatted System, Data, Boot, and SDcard 0 but it still seems to happen. Also, recently my phone has been shutting off by itself every time I turn off the screen. And I know this isn't a hardware problem because the phone never turns off while music is playing with the screen off. It didn't start happening with CM 12. It was already happening with CM11 but it only started happening about a week ago. Im really thankful for cars1189 working on the rom and anyone else who worked on it. You guys are great. Hopefully you can help me out.
[Samsung Galaxy Exhibit 4G] german221:
[/COLOR]

The cLock uses location im not sure why. Hence, the location Is constantly waking up the device, try finding a way to disable if you can.
[Samsung Galaxy Exhibit 4G] JoshuaDoes:
Source Codes

Hello cars1189, I love your work and all your support for the device! Thanks for it all!

Today I'd like to ask you if there was a chance that you could upload your source to a repository like GitHub, or possibly just host it as well. I've been dying to work on a ROM for this phone, but I never got the chance and I'd love to begin now.

Thanks in advance,

Joshua, 14
[Samsung Galaxy Exhibit 4G] guywitht679:
4G

Hi all,

this is my first post on xda, though i've been lurking for a while. first would like to express gratitude to cars and everyone else for developing this for everyone. My question has to do with getting wireless 4G, which I've been unable to do (though I am paying for it on my data plan).

I'm using the 2014-11-21 flash of CM11, though I had the same issue with the cm11 from July. I am able to access 4G with the stock android rom.

Preferred network type selections are 3G and 2G

I am using T-Mobile US LTE (fast.t-mobile.com), and have manually set the APN config to match that of the stock rom

Preferred Network type is "WCDMA preferred" (via #*#*4636#*#*). I believe I've tried all of the options, and none allow me -------to access 4G.

Rebooting into safe mode makes no difference.

Mobile Network Type: UMTS

Signal strength: -107 dbm 3asu

Mobile Network State: disconnected (?)

Network: T-Mobile

Baseband Version: T679UVLG3

Kernel: 3.4.104-cyanogenmod-g28f8503-dirty

--------doadin@doadin-VirtualBox #1

--------Tue Dec 9 05:54:24 EST 2014

there are some issues logged at JIRA, but t679 isn't supported (as you all know).

I've reflashed the rom a few times to no avail.

I have some other issues with the ROM, but I'd prefer to resolve this asap (if possible, of course). I'm def a beginner, but i've tried to supply some info that may help some of you android wizards. Please let me know if you need any other info, or anything else. Your help would be greatly appreciated.
[Samsung Galaxy Exhibit 4G] canodroid15:
You're getting the same 4g coverage you've always got, [MENTION=4110627]cars1198[/MENTION] just removed the 4g & late symbols, because Tmo's 4g isn't really 4g, cars could better explain it to you because its his ROM & or ROMS, don't worry the 3g is really still 4g, you can check your speeds with Ookla speed test from play store. Its the same tmo 4g you always had it just shows 3g on [MENTION=4110627]cars1198's[/MENTION] ROMs!
[Samsung Galaxy Exhibit 4G] guywitht679:
o my jeebus what a wonderful human being you are. Maybe i will add that into the wiki or something so stubborn goons like me don't wait 8 months to create a login to ask a question with such a simple answer. thank you!:good:

I will be back on here hopefully later with a few other questions (hoping my good will won't run out before i'm done haha) regarding the sim card simply not being recognized after encrypting the phone (may just be chance: ive had it working at least once, but i wiped and reinstalled the rom prob 5 consecutive times, only to have the sim card be mysteriously unrecognized after encryption each time), and my inability to receive mms texts (goSMSpro doesn't work either). but i'll have to do a bit of freshening up on these issues before *officially* asking so no one is wasting their time trying to help me with things i've already tried!

thanks again so much. just one less thing to stress about.
[Samsung Galaxy Exhibit 4G] canodroid15:
No problem man & you're welcome!
[Samsung Galaxy Exhibit 4G] Kyle_18:
Upgrading to CM 12 WHAT IS os2sd?

Hello guys ! =D i need your help . what is os2sd? and how can i flash the cm 12? I want it sooo badly =D .. does it require again the cwm as used in the normal process? or theres a new way .Im mounting it on my external sd card but it keeps on reminding me to reset my phone . it says encryption unsuccessful,, Thanks for your reply -- in advance =D noob here
[Samsung Galaxy Exhibit 4G] canodroid15:
Check your PM!
[Samsung Galaxy Exhibit 4G] mattpickus:
Two points

1. The link from this page: http://xdaforums.com/wiki/Samsung_Exhibit_II_4G

takes you to a page maintained by cars1189 that shows various versions of CM12. However, the link says it is for CM11 so there is a need to fix the link so that it really does point to the CM11 release. I think this is important because the CM12 releases don't work for me at all (see below) and I had to do some hunting to find CM11. First time users might just give up.

2. I discovered all this while trying to upgrade to CM12. I could download the releases, but it will not install properly on my SGH-T679. Everything looks like it is working, but during the boot sequence I see a message "Android is updating 14/14" and then it dies at the next step with an "Encryption unsuccessful" message and a button to do a factory reset. However, a factory reset doesn't work and you are stuck in an endless loop of reboots with the same messages. I have duplicated this with both the

cm-12-20150211-UNOFFICIAL-ancora_tmo and

cm-12-20150315-UNOFFICIAL-ancora_tmo versions of the ROM.

I had taken a complete backup just before I tried to upgrade (my momma didn't raise no dummies) so I was able to get back to CM11 without too much hassle. I also tried using ODIN to go back to the Gingerbread factory ROM, rooted with rootstock.zip, reinstalled clockwork, and then tried to upgrade to CM12 but that gave the same result.

If anybody has a work around for the encryption error, I would appreciate your suggestions. Apparently this is an issue with a number of phones.
[Samsung Galaxy Exhibit 4G] canodroid15:
[MENTION=1816400]cars1189[/MENTION].....
[Samsung Galaxy Exhibit 4G] mattpickus:
And as a follow-up to my previous message above, I should mention that I tried the install with both CWM and TWRP recoveries and did a triple wipe (data, cache, davlik) as well. Would doing a full system wipe help?

BTW, I use my phone mainly as a portable version of my laptop and practically everything on my phone is also on my laptop. So, if I have to wipe it all and reinstall all my apps from Google Play it is no big deal as I only have two non-market apps and can resynch my data easily.

Also, does anybody know of a utility to swap the SD cards that works under CM? I know there are several out there that let you swap internal for external, but a number have warning not to use with CM.
[Samsung Galaxy Exhibit 4G] der_cobester:
Last night, I flashed the 12.1 ROM. It works decently, and I have fixed most of the problems I had at the beginning. I now am having a lot of crashing problems. It says "Unfortunately, the process (process name here) has stopped." Most of these have been audio related, with ones like Music and Audio FX, but the one that just popped up now was com.google.process.gapps. I don't know if anybody else has had this problem, but I have probably rebooted 15 times today, two of them being soft reboots, and it's driving me nuts. Any solutions?

Thanks.
[Samsung Galaxy Exhibit 4G] canodroid15:
Which gapps did you flash? The bigger the package the more issues you're going to face, also when flashing 12.1 you MUST use 5.1 gapps 5.0x gapps might flash but you'll have FC's & errors out the yang! I flashed CM12.1 & pa gapps pico for 5.1 & just download the gapps I need from play store
[Samsung Galaxy Exhibit 4G] der_cobester:
I definitely did install 5.1 gapps. I reset my phone and after a few reboots, it seems to be working well, and I have only had it restart itself once. I think that one was app related though, since I have not had it since then.
[Samsung Galaxy Exhibit 4G] canodroid15:
Good to hear! Im running it pretty solid as well, it'll be soooo much faster & smoother once the 12.1 kernels drop, if you haven't already, check out sys log from play store its the best way to get logs & post them, any crash logs, random reboots, etc, will be beneficial to [MENTION=4110627]cars1198[/MENTION]?
[Samsung Galaxy Exhibit 4G] mkeeoma:
Confused

hey [MENTION=1816400]cars1189[/MENTION] i am confused to how should install this from i tried following these instructions and nothings working for me :( i am trying to install the OS2SD 12.1.
[Samsung Galaxy Exhibit 4G] der_cobester:
Make sure you have his OS2SD CWM. Download the ROM, put it on external SD card (internal might work, just not what I did. Clear cache, dalvik cache, and do a factory reset from CWM, after making a backup TO EXTERNAL SD (otherwise it will be deleted). Then install the 12.1 zip and then a 12.1 gapps with at least google play and reboot. Voila!
[Samsung Galaxy Exhibit 4G] tyreese top dan:
cm12 exhibit 4g

could you make the next update more stable like the cm11
[Samsung Galaxy Exhibit 4G] Andresakapaco04:
Hey can i get some help well i flashed 12.1 on my fone everything seemed pretty normal about the gapps im not sure where can i find the pico gapps please also... i lost root acces how can i get it back again please help?
[Samsung Galaxy Exhibit 4G] canodroid15:
Go into settings & tap build number 7 times to enable development options then go back to settings/developer options/ set root access to apps & ADB & you'll have root. You can flash latest superSU zip in recovery as well. As for gapps, Google search for Banks minimal gapps they work great! I'm using the 4-21-15 LP package
[Samsung Galaxy Exhibit 4G] Andresakapaco04:
Okay thanks i was able to root...well i havent flashed banks gapps yet but one more question will this chamge my boot up speed i mean...my fone takes for ever to boot up it keeps sahing optamizing apps and it takes so long...wat can i do about that?
[Samsung Galaxy Exhibit 4G] cmc3:
[ROMS][SGH-T679]Mass CM Thread.........CM 12.1 Testing

This is not letting me post to the right thread.

Loaded CM 12.1 5/31/2015

Load proceeded smoothly, 1st reboot took a while, but eventually completed.

I didn't load gapps.

loaded: esfile & firefox directly from their sites. Both seem to work.

Phone mounts correctly when attached to my linux box.

I had a problem when I tried to transfer 28GB of music. The first ~200GB go fine, then I get transfer failures. This was very repeatable and happened at the same file each time. I tried ftp-ing the files over my wireless network, same problem in about the same place. I have a 30GB SD card added to this phone.

Overall the apps. crashing problem than I had with CM12.0 seems to be fixed, I can use the calculator again.

CM12.1 seems to run slower than CM11, but it still usable.
[Samsung Galaxy Exhibit 4G] cmc3:
3.4.107+linaro+k^kernel+ion_pmem+cm12.1+oc+6-7-15.zip

Tired the new 12.1 : 3.4.107+linaro+k^kernel+ion_pmem+cm12.1+oc+6-7-15.zip

This one never makes it past the boot screen for me.
[Samsung Galaxy Exhibit 4G] canodroid15:
Odd? I'm on the latest 12.1 & using the exact same kernel with zero issues, maybe re-download & check md5 sum to insure a good download
[Samsung Galaxy Exhibit 4G] cmc3:
Checked the md5 it was good.

tried sideload twice, third time transferred the zip and flashed.......... all had the same result.

I do have a 30GB SD card in this phone, I try pulling that and flashing again

It tried it again. This time I wiped only davlik and cache, before I was wiping system also.

installed from zip file, reboot.... it appears to be working now
[Samsung Galaxy Exhibit 4G] tyreese top dan:
great rom great work

[/QUOTE][/QUOTE]am having two problem with the rom so far 1. incoming call whenever am getting calls it either dont ring u just see the miss calls or if it do ring the answer screen dont appear i have to use the home button to answer . 2. facebook make it slow it runs smoothly with cm11 tho
[Samsung Galaxy Exhibit 4G] cmc3:
Phone still seems to hang and need a reboot once an a while. I noticed this when I was playing audio over the car with bluetooth. I got out of the car turned it off, the phone seemed to hang and not want to do anything. Tried it again.... no problem.

I also found a problem with file transfers, if the the name contains odd characters : ( $ ) ? , the transfer hangs, eventually a error message appears allowing you to skip that file, but the transfer never seems to complete after that. Renaming the culprit files fixes this problem. This has never been a problem before.
[Samsung Galaxy Exhibit 4G] djcarter:
help

it keeps crashing after load an i try all three. wipe then boot cm then gapps reboot loads then crash.. i dont want to go back to stock
[Samsung Galaxy Exhibit 4G] Phluff:
So, I have been trying to flash ROM 6-10-15(OS2SD) to my phone, but it continually fails. I noticed that it said that I was required to flash the newest TWRP to be able to do anything, but there is no link to one that would work, that I saw. Could you link to a proper TWRP build?
[Samsung Galaxy Exhibit 4G] Phluff:
Sorry for the double post, but I am back again, using TWRP 2.7.1.0. I have tried to install several different roms on the list, three of which return "Encryption Unsuccessful". The one that I have recently tried and got that on was the CM 12.0 ROM 1-11-15v2(OS2SD). I did not install gapps as the trial run of the rom, to see whether or not it would boot up, as I did get one to install successfully, but it sat on the boot screen for 30 min.+. I did do a MD5 check, to see if the download screwed up, but the check returned successful, so that isn't the problem. I have noticed that a few times on install, it would say that the install was unsuccessful for some reason, something about being unable to mount something or other, but everything else seemed to work right. This last time though, it returned no errors on install, so I thought that it installed correctly. Sadly, it returned the same "Encryption Unsuccessful" message. I am hoping to hear from someone soon, as this is a bit disheartening. I would really like to run Lollipop on this old phone of mine.

Side note: the K^Kernel for CM12.1 : ION/PMEM ROM 6-10-15(OS2SD) does work with an older rom that I have been running for about a year. I have yet to see much improvement, but the older rom has a bit of age and an unknowledgeable user to overclocking.
[Samsung Galaxy Exhibit 4G] frequentc:
Hey guys,

I'm currently on gingerbread, and I'm trying to update to car's os2sd version of CM11.0 from 4-10-2015, but all I get is a reboot loop when it reaches the Samsung logo.

Edit: Problem solved. Check the end of this post for more details.

Here's what I did:

Formatted /system, /data, /cache, and /sdcard0 in CWM (/sdcard0 was formatted as ext4)

Installed the os2sd version of TWRP 2850

Rebooted into new TWRP and flashed cm-11-20150410-UNOFFICIAL-ancora_tmo.zip

When I then reboot into the new rom, it just keeps rebooting when it gets to the Samsung logo, and I never see android start to load.

Other things I've tried:

Verified MD5 hashes were correct

With and without installing Google apps

Using the os2sd version of CWM instead of TWRP

Using the 12-25-2014 version of CM11.0

None of those things helped, but when I reinstall the non-os2sd version of CWM, I'm able to flash back to my old gingerbread rom without issue.

I have a 32gb microsd card that's also installed with one 32gb partition (formatted as vfat). Do I need to do anything special with that?

Am I missing some step? If anyone has any ideas, I'd appreciate it.

Thanks

Edit:

I just tried an earlier, non-os2sd version of CM11 (the one from 9-9-2014), and it's working so far. However, I'd still like to install the newest os2sd version of CM 11 if anyone knows what the problem is.

Edit2:

I was trying to install the rom from my external sdcard, and for some reason the os2sd recovery didn't like that. When I copied the rom to the internal sdcard, it was able to flash correctly.
[Samsung Galaxy Exhibit 4G] tyreese top dan:
thanks

thanks for keeping us updated with the latest

---------- Post added at 05:24 PM ---------- Previous post was at 05:14 PM ----------

first wipe data system an other necessary ones

then format sdcard0 as ext4

install the new os2sd twrp/cwm reboot into recovery then install your latest cm then reboot system dont install any GAPPS until after reboot is finish

finally reboot into recovery install GAPPS reboot to success
[Samsung Galaxy Exhibit 4G] frequentc:
Thanks for the response, tyreese. I just tried what you said, and it now just shows a blank screen after the Samsung logo. After a few minutes, it reboots again, and then shows the blank screen again.
[Samsung Galaxy Exhibit 4G] cars1189:
Rebooting after the samsung logo to me sounds like you may have mixed the os2sd and regular builds in some way. It sounds like its not finding android in the partition it thinks is /system and basicaly you are getting the phones version of the pc "insert bootable disk and hit any key to reboot" or w.e. it says cant remeber exact message but anyways you get the idea. Has anyone had success with using twrp 2500+ and cm11 os2sd? Last i knew i was pretty sure it worked.
[Samsung Galaxy Exhibit 4G] frequentc:
Yeah, there may have been some issue that was causing it to reboot. I tried it again, and I've now got it to the point that it just shows a blank screen after the Samsung logo (it doesn't reboot anymore), but I can't get it past that. I've tried reflashing multiple times.
[Samsung Galaxy Exhibit 4G] tyreese top dan:
Ok bro am here again am gonna try a next step use odin an make a reboot

instal twrp then install os2sd twrp then install rom am gonna make a video how to flash

let me know what the progress
[Samsung Galaxy Exhibit 4G] frequentc:
I think there's some instability with my phone that causes problems sometimes because sometimes a rom will flash correctly and sometimes it doesn't (even when I flash it exactly the same way). I ended up going back to the non-os2sd release of CM 11 (and even flashing that failed at first), but now, it's running fine.

I'll probably wait until [MENTION=1816400]cars1189[/MENTION] puts up the final os2sd version of CM11 and try again (he said it should be up any day). I found some other detailed os2sd flashing instructions by christopher83 (http://xdaforums.com/showthread.php?t=2579431) that recommends wiping everything inside of the new twrp instead of the old one. I'll probably try that next time.

Thanks for your help, though.
[Samsung Galaxy Exhibit 4G] tyreese top dan:
your welcome bro.. but just to inform you cars1189 already released the latest cm11 am using it now.. And he is releasing cm12.1 now all the release are here click os2sd an look at the date

https://www.androidfilehost.com/?a=show&w=files&flid=14668
[Samsung Galaxy Exhibit 4G] frequentc:
[MENTION=1816400]cars1189[/MENTION] [MENTION=6713361]tyreese top dan[/MENTION]

I figured out why I was just getting a blank screen after the samsung logo when installing an os2sd based rom (like CM 12.1 or CM 11.0). It turns out that the os2sd recoveries don't like it when I try to install an os2sd rom or google apps from my external sdcard (TWRP 2.8.5 and CWM 6051 both had this problem). When I copied the rom to the internal sdcard, it installed fine. This fixed the problem for both CM 11.0 and CM 12.1.

I never had this problem with earlier non-os2sd based recoveries, and my external sdcard (formatted as vfat) appears to work fine. I was able to copy the file directly from the external sdcard to the internal one, and I've also checked the md5 checksum of files stored on the external sdcard, and they have been correct. Also.. k^kernel was able to install fine from the external sdcard.

Here's the important part of the log file that I got after flashing cars1189's CM 12.1 from 7-8-2015 using TWRP 2.8.5 (CM 11.0 also had this problem) with the rom on my external sdcard. I also had the same problem flashing os2sd roms from CWM 6051, so it doesn't seem to be limited to TWRP. The full log is attached at the bottom of this post.

Installing '/external_sd/temp/roms/cm-12.1-20150708-UNOFFICIAL-ancora_tmo.zip'...
Checking for MD5 file...
Skipping MD5 check: no MD5 file found
I:Zip contains SELinux file_contexts file in its root. Extracting to /file_contexts
I:Legacy property environment initialized.
minzip: Extracted 3 file(s)
detected filesystem ext4 for /dev/block/mmcblk0p17
about to run program [/tmp/install/bin/backuptool.sh] with 2 args
grep: /system/build.prop: No such file or directory
Not backing up files from incompatible version: 12.1
run_program: child exited with status 127
about to run program [/tmp/install/bin/otasigcheck.sh] with 1 args
blockimg version is 2
erasing 284160 blocks
Patching system image unconditionally...
writing 128984 blocks of new data
I:Legacy property environment disabled.
E:Error executing updater binary in zip '/external_sd/temp/roms/cm-12.1-20150708-UNOFFICIAL-ancora_tmo.zip'
Error flashing zip '/external_sd/temp/roms/cm-12.1-20150708-UNOFFICIAL-ancora_tmo.zip'
Updating partition details...
E:Unable to mount '/system'
I:Actual block device: '/dev/block/mmcblk0p17', current file system: 'ext4'
I:Data backup size is 0MB, free: 1601MB.
...done
I:Set page: 'flash_done'
I:operation_end - status=1
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'advanced'
I:Set page: 'confirm_action'
I:Set page: 'action_page'