Develop Bugs

[Q] Can I downgrade to 4.1.x stock through odin from TW 4.3

I flashed this TW 4.3 last night
http://forum.xda-developers.com/showthread.php?p=48048833#post48048833
And I already miss AOSP smoothness/faster feel. What's the easier way for me to get to any AOSP 4.3
Going thru other threads. It seems, If I try odin back to 4.1.x stock, it may not work/i may brick the phone.
Advise plz
P.S: Currently on I747UCUEMJB MODEM as part of this TW 4.3

paluinfusion said:
I flashed this TW 4.3 last night
http://forum.xda-developers.com/showthread.php?p=48048833#post48048833
And I already miss AOSP smoothness/faster feel. What's the easier way for me to get to any AOSP 4.3
Going thru other threads. It seems, If I try odin back to 4.1.x stock, it may not work/i may brick the phone.
Advise plz
P.S: Currently on I747UCUEMJB MODEM as part of this TW 4.3
Click to expand...
Click to collapse
Did you flash the mjb (4.3) bootloaders? If you did, you will brick by flashing backwards. If not from what I have read it is relatively safe. There is always a risk of bricking even with the simplest of tasks involving flashing.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

theramsey3 said:
Did you flash the mjb (4.3) bootloaders? If you did, you will brick by flashing backwards. If not from what I have read it is relatively safe. There is always a risk of bricking even with the simplest of tasks involving flashing.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
NO I did not flash the bootloader. I was on Quantum 4.4 for quite some time.
I am planning to travel abroad in couple months. So, to unlock wanted to try TW ROM. hence picked this one (it didnt work though)
This is what I did from 4.4 quantum
Nandroid backup.
flashed the I747UCUEMJB Modem
wiped everything
flashed the ROM
flashed dkp test kernel for TW 4.3
Reboot.
As i took nandroid backup of 4.4 quantum. Now I wiped everything from this TW 4.3 and restored that backup.
So, currently i am on 4.4 quantum (through nand restore)
But phone baseband version says I747UCUEMJB. that's why i am asking the question here.

[Q] which roms are 4.2.2 instead of 4.3

Hi all this is my situation I was running 4.3 roms but then I started running into problems with my data dropping so I found out that the data drops were coming from the 4.3 update so I just figured that I'll stay with 4.2.2 roms I usually run Jovy23 dartstalker rom which I luv so I want to use his roms that was based on 4.2.2 I have a list of all his older builds but cant figer out which one's are 4.3 and which ones are 4.2.2 for my tmobile gs4 would any one happen to kno

okay22s said:
Hi all this is my situation I was running 4.3 roms but then I started running into problems with my data dropping so I found out that the data drops were coming from the 4.3 update so I just figured that I'll stay with 4.2.2 roms I usually run Jovy23 dartstalker rom which I luv so I want to use his roms that was based on 4.2.2 I have a list of all his older builds but cant figer out which one's are 4.3 and which ones are 4.2.2 for my tmobile gs4 would any one happen to kno
Click to expand...
Click to collapse
Usually if you read the Op, there's info there that will tell you what firmware the ROM is base on.
You looking for touchwiz or Aosp ROM?
☞Sent from here☜

Yeah touchwiz roms but thats the thing the older builds are not on the xda site anymore

re: roms
okay22s said:
Hi all this is my situation I was running 4.3 roms but then I started running into problems with my data dropping so I found out that the data drops were coming from the 4.3 update so I just figured that I'll stay with 4.2.2 roms I usually run Jovy23 dartstalker rom which I luv so I want to use his roms that was based on 4.2.2 I have a list of all his older builds but cant figer out which one's are 4.3 and which ones are 4.2.2 for my tmobile gs4 would any one happen to kno
Click to expand...
Click to collapse
Any of the Darthstalker roms version 9 or older are all 4.2.2 MDL baseband roms.
If your current rom version is 4.3 and your baseband is MDL you need to Odin flash
the 4.3 radio/modem file (MK2) in order to fix your signal/data dropping issue and
you will be able to download and successfully flash 4.2.2 based roms if you like.
But if you have already #1: Odin flashed the official stock Samsung 4.3 Jellybean firmware
OR #2: Allowed the OTA 4.3 update or #3: Used KIES and updated your phone to 4.3 you will
not be able to use or flash any 4.2.2 based stock or custom roms.
If you have done any of those three things above you will not be able to downgrade to 4.2.2 roms.
But there are plenty of 4.3 really nice new custom roms you can chose from.

No I have not done either of those upgrades and yes there are some nice new 4.3 Roms but that's the problem I have with all the 4.3 roms the data drops so I just resulted back to my backup and I'm currently running the stock version T Mobile TouchWiz 4.2 .2 from my nandroid backUp but I really do want to use the newer 4.3 roms so you say all I would have to do is flash the modem file to take care of this problem with the data drops on those roms and also sense im on stock 4.2.2 mdl do I have to flash 4.3 rom b4 I flash the modem file

re: older versions of Darthstalker Roms.
okay22s said:
Yeah touchwiz roms but thats the thing the older builds are not on the xda site anymore
Click to expand...
Click to collapse
All the Darthstalker versions are in @jovy23 's Opening Posts.
You just have not look hard enough for them.
Here is the link where you can see all of the Darthstalkers
versions with download links for each one:
http://www.androidfilehost.com/?a=show&w=files&flid=5201
Good luck!

yes thanks i already had that link and saw the older builds but couldnt find out which ones were 4.2.2 and which ones were 4.3 unleiss i flashed them and also a question about the flash the modem u spoke about im a little confused u stated that............................ If your current rom version is 4.3 and your baseband is MDL you need to Odin flash
the 4.3 radio/modem file (MK2) in order to fix your signal/data dropping issue and my question is why would i need to flash the modem mk2 file if that was the problem with the data drops on the 4.3 roms i was running cause right now im on 4.2.2 mdl no problems everything working

re: 4.3 MK2 or 4.2.2 MDL
okay22s said:
yes thanks i already had that link and saw the older builds but couldnt find out which ones were 4.2.2 and which ones were 4.3 unleiss i flashed them and also a question about the flash the modem u spoke about im a little confused u stated that............................ If your current rom version is 4.3 and your baseband is MDL you need to Odin flash
the 4.3 radio/modem file (MK2) in order to fix your signal/data dropping issue and my question is why would i need to flash the modem mk2 file if that was the problem with the data drops on the 4.3 roms i was running cause right now im on 4.2.2 mdl no problems everything working
Click to expand...
Click to collapse
Ok, if you are running 4.2.2 with MDL modem then you are OK, no data/signal drops.
If you WANT to use the new Samsung Galaxy S4 4.3 firmware/rom without catching the KNOX pox
then you need to flash a Galaxy S4 4.3 custom rom like Wicked or Darthstalker and the MK2 modem.
The problem with signal drop/data dropping is due to the fact that the 4.3 MK2 firmware/rom requires
the MK2 modem.bin (baseband) and the only way to get the MK2 modem/radio is to Odin flash it all by
itself without Odin flashing the entire stock offical 4.3 MK2 Jellybean firmware/rom (TAR file)..
Here is the step by step instructions of exactly how to do it:
These step by step instructions assumes you already have
flashed the Wicked 9.1 or Darthstalker X1 custom rom.
#1: Manually power down the phone using the power button.
#2: Start ODIN and put the MODEM.BIN file into ODIN'S PHONE slot.
#3: Put the phone into download mode using the volume down and power button.
#4: Plug the USB cable into the phone and into the computer.
#5: Make sure that ODIN'S [COM:xx] lights up.
#6: Un-Check the Auto-Reboot in ODIN and click START.
#7: After its done flashing unplug the usb cable.
#8: Manually power off the phone using the power button.
#9: Wait 20 or so seconds before you power on the phone.
After doing this the MK2 baseband should show up in About Device.
Here is the direct download link for the Tmobile 4.3 M919 MK2 modem.bin:
http://www.mediafire.com/download/1g...l89x/modem.bin
Good luck!

OK thanks for ur time all try that

Would reinstalling from scratch help with performance?

The last two months my s3 has been performing terribly. I was on custom ROMs for over a year and made the switch back to stock which made my s3 feel like a new phone. But the last two months is a different story. I can't figure out why but things keep stalling and I find myself restarting my phone more often than I would want to
Anyway, I'm wondering whether reinstalling the stock ROM would help any bit
Sent from my SAMSUNG-SGH-I747 using Tapatalk

andy_d0 said:
The last two months my s3 has been performing terribly. I was on custom ROMs for over a year and made the switch back to stock which made my s3 feel like a new phone. But the last two months is a different story. I can't figure out why but things keep stalling and I find myself restarting my phone more often than I would want to
Anyway, I'm wondering whether reinstalling the stock ROM would help any bit
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
I went to stock 4.3 and it lagged terribly. I tried S3Rx and have fallen in love try it it may fix everything you don't like as it did for me. Look for it in the development section. There are still some things that don't work like bluetooth tethering. Look at it it is buttery smooth for me.
Sent from my SAMSUNG-SGH-I747 running S3Rx MJ2 bootloader MJB modem and it is smooth

Ok I'm sold. I'll give it a shot. But, what is with the MJ2 / MJB stuff?

andy_d0 said:
Ok I'm sold. I'll give it a shot. But, what is with the MJ2 / MJB stuff?
Click to expand...
Click to collapse
The stock / OTA 4.3 comes with the MJB version of bootloader and modem. The earlier leaked version of the Samsung/AT&T 4.3 ROM came with the MJ2 modem and bootloader. As long as you are installing to the correct device, the d2att, there should be no issues with the MJB modem, as long as it is good in your area. Some prefer the MJ2 bootloader over the MJB because the MJB will brick your phone if you try to Odin to an earlier version of stock. Yet some of the well known devs do not have an issue with the MJB bootloader. It is not until the last few days that recovery flashable version of the stock 4.3 became available, enewman17 posted it in the development forum.

dawgdoc said:
The stock / OTA 4.3 comes with the MJB version of bootloader and modem. The earlier leaked version of the Samsung/AT&T 4.3 ROM came with the MJ2 modem and bootloader. As long as you are installing to the correct device, the d2att, there should be no issues with the MJB modem, as long as it is good in your area. Some prefer the MJ2 bootloader over the MJB because the MJB will brick your phone if you try to Odin to an earlier version of stock. Yet some of the well known devs do not have an issue with the MJB bootloader. It is not until the last few days that recovery flashable version of the stock 4.3 became available, enewman17 posted it in the development forum.
Click to expand...
Click to collapse
Ah ok thanks for the info. I just got done installing the ROM and so far so good. Thanks for the recommend!

[SOLVED] I think my i747M may be soft bricked?

Hey all. I am fairly inexperienced when it comes to rooting, though I have done a few succesfully in the past. I currently have the newest version of TWRP installed on my Samsung I747M. The I747M I have is not from one of the major carriers, but as far as I am aware, the phone is factory network unlocked. Carrier is GCI, in Alaska.
I currently have a 4.4.2 Touchwiz Rom installed and started having problems after I attempted to flash the ROM Dandroid, which is 4.3 (http://forum.xda-developers.com/showthread.php?t=2121506). I had created a backup using TWRP before flashing the ROM and reverted back once I noticed the problem.
The main issue I am experiencing at this time is the Baseband Version, IMEI, and other information related to the modem is showing "Unknown" and features such as wifi will not toggle on.
I had also attempted to flash the most current version of the modem that I was able to find thru Odin. Odin showed the flash as successful. The version I flashed to the phone was I747MUMUEND3: modem_CWM_I747MUMUEND3.zip - 18.80 MB - April 3rd, 2014 (http://forum.xda-developers.com/showthread.php?t=1831898)
At this point, I can still get into recovery, download modem and I am able to boot up the phone and access most all functions. The next step I was going to try was going to be to flash back to stock firmware from sammobile's website (Was using to use the Roger's version of 4.4.2), though I don't want to cause more issues than I can handle or resolve thru software.
Any advice on how to proceed would be greatly appreciated or even just how to get the modem/wifi features functional again would be helpful. I'm just as happy staying on my current ROM at this point if I can get the phone fully functional again.

It's possible that the rom is not compatible with the kk modem and bootloader.
Flash cm12.1 to see if your imei comes back.

audit13 said:
It's possible that the rom is not compatible with the kk modem and bootloader.
Flash cm12.1 to see if your imei comes back.
Click to expand...
Click to collapse
Forgot to mention, this is something I did try. I attempted to flash Cyanogen Mod 12.1 (Download: cm-12.1-20151017-NIGHTLY-d2att.zip (286.76 MB) ) and most recent nightly build & the most recent stable release (CM11) (Download: cm-11-20140210-SNAPSHOT-M3-d2att.zip (194.37 MB) ). When flashing these, I transferred the downloaded ZIP file to the internal storage of the phone in the root directory and attempted to run an install from TWRP. Both installs failed.

Since the phone is an i747m, I recommend flashing back to stock using Odin 3.07 and stock ROM file from here: http://www.sammobile.com/firmwares/database/SGH-I747M/
The i747m versions are interchangeable between Rogers, Telus, and Bell.
After flashing back to stock, install TWRP using Odin 3007 from here: https://dl.twrp.me/d2att/twrp-2.8.7.0-d2att.img.tar
Create a nandroid backup using TWRP and then try to flash a custom ROM again.

audit13 said:
Since the phone is an i747m, I recommend flashing back to stock using Odin 3.07 and stock ROM file from here: URL REMOVED FROM QUOTE DUE TO NEW USER LIMITATIONS
The i747m versions are interchangeable between Rogers, Telus, and Bell.
After flashing back to stock, install TWRP using Odin 3007 from here: URL REMOVED FROM QUOTE DUE TO NEW USER LIMITATIONS
Create a nandroid backup using TWRP and then try to flash a custom ROM again.
Click to expand...
Click to collapse
I'll give that a shot when I get home. Stock firmware was one of my next thoughts. I have it downloading at the measly 15 Kbps offered for free from sammobile so hopefully should be done by the time I get home & update this thread with any progress.

Another possibility is a custom kernel, if you are wishing to stay with TouchWiz and not wanting to upgrade your bootloader and modem past 4.3.
Some of the 4.4.2 TW roms will run on 4.3 bootloader and modems using one of ibuddler's kernels or ktoonsez's TW kernel. This was discussed most in the Likewise ROM thread and links to the various versions of ibuddler's kernel may be found there. It may have also been discussed in TMS3KK thread. The ktoonsez kernel can be found in its own thread.
But, you may really want to consider a newer ROM in order to change to something with the stagefright fixes. I think any of these may require the latest 4.4.2 bootloader and modem. (What say you @audit13?)

dawgdoc said:
Another possibility is a custom kernel, if you are wishing to stay with TouchWiz and not wanting to upgrade your bootloader and modem past 4.3.
Some of the 4.4.2 TW roms will run on 4.3 bootloader and modems using one of ibuddler's kernels or ktoonsez's TW kernel. This was discussed most in the "http://forum.xda-developers.com/showthread.php?t=2725192"Likewise ROM thread and links to the various versions of ibuddler's kernel may be found there. It may have also been discussed in http://forum.xda-developers.com/showthread.php?t=2725750" TMS3KK thread. The http://forum.xda-developers.com/showthread.php?t=1756776" ktoonsez kernel can be found in its own thread.
But, you may really want to consider a newer ROM in order to change to something with the stagefright fixes. I think any of these may require the latest 4.4.2 bootloader and modem. (What say you @audit13?)
Click to expand...
Click to collapse
I'm not opposed to any of this. Mostly just trying to slim down this phone to the basics as much as I can and am quite open to any recommendations. Main thing I want to maximize is battery life & simplicity since this is for my wife and those are her major wants in a phone. I figure any kind of ROM that just covers the basics should cover my bases & would prefer one with a darker/black skin to maximize battery life w/ the OLED screen. I am in the process of flashing to the Roger's stock ROM as I type this w/ my fingers crossed.
Just to add, no over clocking or anything of that nature is desired. If I remember correctly I ended up putting the ktoonsez kernel on one of my handsets, either this Galaxy S3 or my Galaxy S5, though I can't recall which since it was so long ago.

Alright! So progress! Wifi, Baseband version, IMEI and all other missing information restored & now works w/ stock rom flash. In process of reflashing TWRP now.

Let us know what happens.

Still all good with TWRP installed. Have not flashed back on a custom ROM yet. After reviewing some of the above recommendations, I am kind of liking the looks & features of TMS3KK (http://forum.xda-developers.com/showthread.php?t=2725750) and feel it would suit my needs.
I factory reset, cleared cache, and cleared Dalvik thru TWRP & then made a back up. Prior to this, I confirmed everything was still working normally w/ phone fully loaded after TWRP was installed.
One of the things mentioned on the installation instructions for that ROM is the following:
---
Do not mix and match 4.3 firmware (bootloaders/modem) with the new 4.4.2 ones. You will hard brick and I warned you. This works the same as any 4.3 or ND8port ROM with 4.3 firmware and it can use the new 4.4.2 ones also.
Link to recovery flashable i747 and i747M 4.4.2 bootloader and modem packages: http://forum.xda-developers.com/gala...hable-t2856914
---
How would I go about confirming my current bootloader/modem versions to make sure they are both 4.4.2 before flashing this ROM? At the link provided, those files/links to the files were removed because they were causing some bricked devices per a note at the top of that thread. Here's a link to the thread I am referencing since the above link looks to be broken. (http://forum.xda-developers.com/gal...mware-ne4-ne6-nf2-recovery-flashable-t2856914)

If you flashed the latest stock rom, you are running the latest 4.4.2 bootoader and modem.
You can download and run the Samsung phone info app from the play store to confirm this.
You should be good to flash any d2lte or d2att rom.
I recommend not flashing any modem or bootoader from this point forward unless the bootoader and modem are newer than the currently installed botloader and modem. Also, the botloader and modem must be matched to each other.

audit13 said:
If you flashed the latest stock rom, you are running the latest 4.4.2 bootoader and modem.
You can download and run the Samsung phone info app from the play store to confirm this.
You should be good to flash any d2lte or d2att rom.
I recommend not flashing any modem or bootoader from this point forward unless the bootoader and modem are newer than the currently installed botloader and modem. Also, the botloader and modem must be matched to each other.
Click to expand...
Click to collapse
Thank you so much for the help and information. I guess I never realized that the bootloader & modem were installed w/ the stock rom as I always have flashed those separately through Odin when needed. Definitely good information to have and not easy information to find. I have successfully got my custom ROM on there and am now fine-tuning it for the wife.

fodor362 said:
Thank you so much for the help and information. I guess I never realized that the bootloader & modem were installed w/ the stock rom as I always have flashed those separately through Odin when needed. Definitely good information to have and not easy information to find. I have successfully got my custom ROM on there and am now fine-tuning it for the wife.
Click to expand...
Click to collapse
Glad to hear the phone is running well.
I've heard it said "Happy wife, Happy life."

[SOLVED] i747 GPS Issue On Kitkat ROMs And Above

I have an ATT S3 which had 4.1.1 firmware before I rooted, flashed a ROM, etc. I'm having a GPS issue, but this doesn't seem to be the usual GPS issue S3 users encounter. From my research, I've seen S3 users stating that GPS works for them, they flash a certain ROM, and all of a sudden it doesn't work at all on any ROM (until they either tighten the screws in the phone, or reflash stock firmware in ODIN, or something like that). GPS works fine for me--I get a satellite signal fairly quickly, and the signal is strong enough to be accurate... but only on Jellybean ROMs. If I flash any sort of Kitkat ROM or newer, GPS can never get a signal. However, once I flash back to any ROM that is Android 4.3.1 or below, it starts working fine again.
I'm thinking this is related to the 4.1.1 firmware I had on here before flashing ROMs. I had a very similar issue with radios and getting cellular signal. With the 4.1.1 radios, I was able to get signal just fine on 4.3.1 ROMs and below, but Kitkat or anything above would not be able to find a signal. I flashed a newer radio in TWRP and signal-finding now works fine on all ROMs. [Side note that potentially is related, my i747 is unlocked and I'm using it with a T-Mobile SIM] Would flashing 4.3 stock firmware, which would perhaps give my phone "newer GPS radios" for lack of a better term, fix this issue? I don't want to leave 4.1.1 firmware if I don't have to, since apparently 4.1.1 firmware is more desirable, and once you go to 4.3 you can't come back down.

I think you have summarized it well. I have seen others comment about running newer ROMs on older firmware and modems with issues related to bluetooth, gps, and wifi. Firmware and modem upgrades fixed there problems.
You have already taken care of the greatest reason I have seen regarding having the 4.1.1 firmware, sim/carrier unlocking the device. From all I have read, that unlock is permanent no matter what rom changes and wipes you may do in the future. I guess a jtag or mobo swap would remove the unlock.
The drawbacks with the official 4.3 release (MJB) are Knox and the inability to downgrade. Knox seems to be in the official ROM and not in the firmware. I say this because the custom TW roms, 4.3 or 4.4.2, come without Knox. enewman17 has even removed Knox from some of his stock rom images. The same holds true for the three official Kitkat releases, NE4, NJ1, and NJ2: Knox and no downgrade. There is an extra kicker with the 4.4.2 releases, the modems will brick the phone if their version does not match the firmware version.
There is one thing you could do if you did not want to commit to MJB. Prior to MJB being released there was a leaked 4.3 stock rom with firmware and modem. Several custom TW roms were developed from it and you can still get the firmware and modem files in some of the threads. The short code for that release was MJ2. The great thing about the firmware with this release is that you can still downgrade it. You can also run the MJ2 firmware, (firmware = bootloader in the way I use the terms) with the MJB modem (modem = baseband = radio). The MJ2/MJB combination is downgradeable. This bootloader/modem combination file can be found in the OP of some of the ROM threads by loserskater and others. Even better, there are several custom TouchWiz based KitKat ROMs that will run on this MJ2/MJB combination, as long as you use one of two custom kernels; one is by ibuddler and the other is by ktoonsez. Ktoonsez has his own thread, just be certain to grab the correct kernel. He has downloads for TW and CM/AOSP kernels for several android versions. Links to ibuddler's kernel can be found in the Likewise ROM thread, IIRC. I know these kernels worked with NE4 TW ROMS and the MJ2/MJB combo. I haven't seen mention of if they will work with NJ1 or NJ2 based ROMS.
It could be that Ktoonsez' CM/AOSP 4.3 kernels will provide the same functionality with current CM/AOSP roms. At one point CM/AOSP roms based on Kitkat stopped working with the 4.3 bootloader, it was either November of 2014 or 2013. I have never seen mention of LP or MM roms working with the 4.3 bootloader, regardless of the kernel.
A reason to consider running a newer ROM is the Stagefright fixes to be found in them, incomplete as that may be. I haven't seen the fixes mentioned as incorporated into any of the TW based ROMs other than enewman's stock image. CM11 does have the fixes but seems to require a 4.4.2 bootloader and modem.

Something else that can be used to fix gps problems is an app called GPS Test. After an update or flash, many people have encountered gps issues, and often all you have to do is open the app and let it find all the satellites it can. Then open maps and it should get a quick location fix. (You may or may not have to clear data on maps or other gps related apps first). You can Uninstall the app afterwards as it only needs to be done once.
This doesn't always work, but it has enough to be a worthwhile alternative to try before flashing.
Also, I've noticed on more recent builds, gps/maps just can't seem to get a location fix. If you're in a bind, just leave it running for a bit and sometimes it'll start working after a while. Again, this isn't always the case, but it's worth knowing/trying if you find yourself lost or in a bind and cant do any real work/troubleshooting.
Sent from my SGH-T999 using Tapatalk

Thanks for the help from both of you! I tried the GPS fix app and unfortunately it didn't work. I'll give MJ2 firmware a go.
Just to confirm before I flash...MJ2 provides all MJB 4.3 radios and such, while retaining the ability to downgrade to 4.1.1 if I wish? I just want to be 100% sure before I flash this.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

jasonmerc said:
Just to confirm before I flash...MJ2 provides all MJB 4.3 radios and such, while retaining the ability to downgrade to 4.1.1 if I wish? I just want to be 100% sure before I flash this.
Click to expand...
Click to collapse
Yes, I did this myself. No bad side effects observed.
---------- Post added at 08:07 PM ---------- Previous post was at 08:02 PM ----------
Well, actually, I used the flashable zip that contained the MJ2 bootloader and the MJB modem. I downgraded both back to 4.1.1 to do the free unlock. I downgraded, confirmed downgrade, performed the unlock, and then went back up to MJ2 bootloader and MJB modem. I have since upgraded to NE4 for bootloader and modem.

dawgdoc said:
Yes, I did this myself. No bad side effects observed.
---------- Post added at 08:07 PM ---------- Previous post was at 08:02 PM ----------
Well, actually, I used the flashable zip that contained the MJ2 bootloader and the MJB modem. I downgraded both back to 4.1.1 to do the free unlock. I downgraded, confirmed downgrade, performed the unlock, and then went back up to MJ2 bootloader and MJB modem. I have since upgraded to NE4 for bootloader and modem.
Click to expand...
Click to collapse
I'm confused once again, and I know I shouldn't be...
I did the free unlock in 4.1.1, so will going to this MJ2 un-do the unlock with the new radio?
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

jasonmerc said:
I'm confused once again, and I know I shouldn't be...
I did the free unlock in 4.1.1, so will going to this MJ2 un-do the unlock with the new radio?
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
Sorry about creating confusion.
Your Unlock, free or otherwise, is permanent - or so I have read. Going to MJ2 or any of the newer bootloader and modems should not change your unlock status.
I meant that I was already on MG2 (4.1.2) before learning of the free unlock. From MG2 I was able to downgrade to 4.1.1, do the unlock and then upgrade to the MJ2 bootloader and MJB modem. Months after that I again downgraded to 4.1.1 with no issues. I upgraded that same day to MJB and then to NE4 in order to install CM11.

dawgdoc said:
Sorry about creating confusion.
Your Unlock, free or otherwise, is permanent - or so I have read. Going to MJ2 or any of the newer bootloader and modems should not change your unlock status.
Click to expand...
Click to collapse
No problem at all. It's not you, its me XD
I'll flash MJ2 when I get home later tonight. I appreciate the help given by you (and others). This S3 forum is definitely one of the more friendly forums I've come across--much more patient with noobs like myself. Thanks for the help!
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I found a page on galaxys3root.com with links to 3 files... Stock 4.3 MJ2 with root (and I think no KNOX as well), MJ2 modem, and Insecure 4.3 kernel. Since these are all separate files I have to reboot to recovery and flash each one individually. I'm assuming this is what I'm looking for. If it isn't, then feel free to chime in and tell me to stop, since the downloads are probably going to take a very long time to complete (on my Windows XP netbook from 2011).
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jasonmerc said:
I found a page on galaxys3root.com with links to 3 files... Stock 4.3 MJ2 with root (and I think no KNOX as well), MJ2 modem, and Insecure 4.3 kernel. Since these are all separate files I have to reboot to recovery and flash each one individually. I'm assuming this is what I'm looking for. If it isn't, then feel free to chime in and tell me to stop, since the downloads are probably going to take a very long time to complete (on my Windows XP netbook from 2011).
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Click to expand...
Click to collapse
I recall seeing that page before I first rooted my S3, but I didn't use it.
Since you have TWRP you could flash the MJ2/MJ2 bootloader and modem or the MJ2/MJB bootloader and modem and not lose the ability to downgrade. There are download links in several ROM thread OPs, the ROMs I recall offhand in S3RX by loserskater and TMS3 (don't recall the dev). You could root by flashing the SuperSu.zip from TWRP. The link is in the OP of the stable thread.
I think this is what I did: custom recovery and then SuperSu.zip while still on stock. Later I went to the TMS3 4.3 rom while on MJ2/MJB. I regained root with the same method after the downgrade and subsequent upgrades I mentioned above.

Problem solved. Can now acquire GPS signal through Waze on 4.4.4 Quantum 5 ROM. I appreciate the help.
EDIT: Also working in CM12.1
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