Rooted SM-G955U back to stock? - T-Mobile Samsung Galaxy S8+ Questions & Answers

Hi all. It's been forever and a day since I've messed with this phone. How do I get this thing back to stock? It's been a minute since I've done any of this stuff. I know I need Odin but not much after that.

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Question? I downloaded OTA today or I thought I did.

I had rooted my phone a few months back and used Skyraiders 1.9b rom for a bit. After hearing about an ota coming out I decided to go back to the original stock rom by just using my nandroid backup. So today I get my OTA update and my phone gets stuck on the ! inside the triangle screen. I reboot and I am still on 2.1 and the old radio and can not get back to the OTA update. Any help?
2.1 Update-1
Baseband 1.00.03.04.06
Kernel 2.6.29-cc1c2268
htc-Kernal
I am guessing I need to get Clockwork Recovery off of my phone any tips on doing that? Did a search and came up with nothing.
Thread moved to Q&A.
Oops sorry.
Forget it I am just updating my rom through XDA. Was hoping to do the OTA, but this will work fine.
Actually you should have just let it sit. I know some have said in just a few minutes I had Froyo. Well it's longer than that, and it seemed to hang up on the green triangle with the phone image um twice? I want to say. I just got up and walked away before I touched it. I think you stopped it from updating. If it doesn't get repushed you may have to run the rom or update.zip that's going around.
I let it sit for 25 minutes. I thought that was alittle excessive. I downloaded from the XDA forums. All is good and I am loving froyo with my 720p video and my flash works with the camcorder! Nice!

[Q] Why isn't my evo updating?

So, i rooted my EVO a long time ago with unrevoked 2, i believe, and i decided i didn't want to bother with roms and all that crap, so i decided to update to 2.2, but unfortunately after i download it and start the install, it stops about a third the way through of the install of froyo and gives me a error(triangle with a ! in it, little android guy next to it on the bottom right). I'm not exactly sure why this is happening, but i thought something was screwed up, so i decided to do a factory refresh after backing up all my stuff. Did so, and got same results, think i read it has something to do with the custom recovery added on with unrevoked? Well, can anyone help me get to straight up 2.2(new OTA for 30 fps fix as well), then root? I really just don't want to bother with ROM's right now. Thanks in advance for any help!
Oh and, after i get the error, it reboots fine after i pull out the battery.
It's a sticky in the development thread 3.28.651.5 I believe. Just flashed it, stock rooted Rom. To me seems a lot faster (I'm very picky haha) was running a stock rooted rom prior. Did NOT lose root. Must be fully rooted though (s-off) with unrevoked forever. Hope that helps. BTW do a search next time or someone will flame u
Sent from my PC36100 using XDA App

[Q] Couple questions about UnROOTing device

did a search and didn't find a specific answer.
My charging port pretty much went to crap on my evo so I need to bring it in for repairs in the morning (replacement)
Now, I know how to unROOT my phone, but What I don't know is...
Will It remove/replace all stock boot images/animations, or do I need to do this before I unroot?
If I need to do it manually, could anyone help me out with a how to?
Thanks guys.
and just so im clear, When my phone boots up, there is an image and then an animation.
If you just unroot, everything will be the same as it is now, except you wont have SU access. If you flash the stock rom back on, like you should if you are taking it in, then that will replace everything, including boot animations and the recovery. It will literally be like you first got it out of the box.
And again, you ABSOLUTELY SHOULD return to the stock rom so you dont void your warranty.
http://theunlockr.com/2010/06/14/how-to-unroot-the-htc-evo/
That might be what you're looking for.
EVERYTHING whould return to stock, boot animations, splash, and what not. But the files from rooting and root apps will still be on the SD card, so if you're feeling savvy, I'd swap out one of my old cards while it is in for service. Or just be honest with the repair guys. Most of them are rooted anyways...
I used to work at the store I'm taking it to for repairs, and the bossman and me never did get along, if i just had to deal with the rep's it would be easy haha.
Thanks.

[Q] Random Reboots

Hello,
I am new to this forum, so If this is the wrong place I do apologize.
Ive recently purchased a new ET4G and decided to root it. I had another one rooted with no problems. Ive been using a couple different roms and this random reboot has became more frequent and has followed me with each ROM.
I have tried to ODIN back to a stock ICS build with Root and then flashing ROMS over again. I still received the same problem.
I am currently using FD26 stock with the addition of root. When the reboots happen. It seems to drain my battery drastically.
Example:This morning at 50% phone reboots and I am at 9% when it comes back on. After a couple reboots it becomes stuck and only a battery pull will allow it to reboot once again.
Anytime I flash a ROM I always follow the recommended flashing method. I do all the appropriate wipes. Id usually think It was the kernel, but even after trying different kernels the issue still happened.
If anyone could shed some light on what could be happening. I would be very appreciative.
do you do complete wipes prior to flashing?
Yes, I do. I usually wipe Davlik and then will run Caulkins format all zip before I flash any Rom. I always odin back to EL26 w/ CWM to flash through to avoid any conflicts with that.
I have no idea what to try next. I've went back to stock a couple times.
This same thing was happening to me honestly about 10 reboots a day and sometimes it would drain me down about 50% battery. I odined back to stock gingerbread using sfhubs latest method, reinstalled clockwork mod and have not had one reboot since. I think I may have heard though that the fd26 build has reboot issues so I would look into that as well. Though I see that you have tried what I have said not sure if you used sfhubs method or not but if so I would just take it back to sprint.
Have you tried flashing this? http://forum.xda-developers.com/showthread.php?t=1433101
I would flash the full restore and if it keeps rebooting unroot and return to Sprint for repair. In the meantime make sure you are not using a cheapo charger and even charge via usb only if its not too much trouble.
someguyatx said:
Have you tried flashing this? http://forum.xda-developers.com/showthread.php?t=1433101
I would flash the full restore and if it keeps rebooting unroot and return to Sprint for repair. In the meantime make sure you are not using a cheapo charger and even charge via usb only if its not too much trouble.
Click to expand...
Click to collapse
+1
Seriously, if you're having problems, to narrow it down you should not be on a leaked Android OS that is still in the testing stages. Always odin back to stock rooted to troubleshoot any issues, report back and we can get go from there.
Edit: If you need help getting back to stock rooted, please ask for help too.
Thanks for all the replies guys. I didn't try flashing the EL29 Restore, But I did try the EG30 and just OTA updated to EL29. It still didn't fix the reboot issue. Even when the phone wasn't rooted, it still would still power cycle. I just went ahead and restored it again and took it to sprint.
It happened about 10times while waiting to talk to a rep in the store. They didn't have a problem setting me up with a replacement. For now I will just use my old 3D. Thanks for the help though everyone.
I'm still stock EL29 till ICS comes out, but I get a reboot every couple days. It actually happened last night about 2AM and woke me up when the Sprint sound came on. Thought maybe there was some update (ICS?) that had caused it, but i didn't see any reason for it. It wasn't charging at the time and the battery was pretty full... Was hoping ICS update was going to fix this, but it doesn't sound promising.
RaheemA said:
Thanks for all the replies guys. I didn't try flashing the EL29 Restore, But I did try the EG30 and just OTA updated to EL29. It still didn't fix the reboot issue. Even when the phone wasn't rooted, it still would still power cycle. I just went ahead and restored it again and took it to sprint.
It happened about 10times while waiting to talk to a rep in the store. They didn't have a problem setting me up with a replacement. For now I will just use my old 3D. Thanks for the help though everyone.
Click to expand...
Click to collapse
On a previous phone (Samsung Moment) I had that issue and it turned out to be a bad battery. They let me borrow a battery in the store and it went away.
Reboots are ICS related.
Sent from my SPH-D710 using Tapatalk 2
revamper said:
Reboots are ICS related.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
got reboots in GB as well so I don't think its solely ICS related... IMO
Yeah... I still was hitting the problem while on Complete stock GB. The phone could have honestly had the problem prior to rooting and flashing. I didn't keep it stock long enough to know for sure haha
Probably not related, but I was having reboot problems due issues with App2SD, so i figure it is worth mentioning just in case...
Issue 25563: OS keeps rebooting when lots of apps are moved to SDcard! HUGE BUG IN ANDROID OS 2.3.5 (and higher)!

Bad Flash Stories

Hi everybody!
I figure we should have a thread dedicated to telling horror stories about flashes gone wrong. Whether it's because of power failures, bad USB cables, poorly labeled packages, or pure user error, we've all had that moment of worry: "Did I just turn my device into a paperweight?"
It's my hope that, by sharing these stories, we can help each other realize that we're all human, we all make mistakes, and most mistakes can be recovered from. Don't be afraid to share your stories; we can't learn from each other's mistakes if nobody talks about them!
_____________________________________________
My first story is from my Telus SGS3 (I747M, you'll see why that matters in a moment) and is definitely a user-error kind of story.
I've been playing around with CM10 and its derivatives for the past month or two (got my SGS3 on release day and it wasn't running Samsung software 3 hours later) and I'm not new to Android, having run XDAndroid on my HTC Diamond, and bouncing between CM7 and CM9 on my Milestone. The first thing I did when I got my SGS3 was a full block device backup using DD from the command line, which is the only reason I don't have a paperweight today.
I decided to try out Paranoid Android over a week ago and I've been loving it, so I haven't been flashing much lately. But, when I got back from vacation and saw that CM10 had gone into nightly builds, I couldn't resist the temptation to try a clean install. I've got folders on my SD card for ROMs, GApps, kernels, recoveries, and anything else flashable just to make my life easier. Apparently at some point I downloaded an AT&T (I747, no M) modem, stuck it in a "/modems/" folder with the rest of my flashables, but realized that it wouldn't work on my device, so I never used it. I then promptly forgot that I had put it on the SD card, and it had a fairly cryptic filename. Away I went, flashing CM10, GApps, a nice bootscreen, and... the modem.
Dammit. :crying:
At this point, I was running the newest CM10 build, but with a borked modem. I thought I had fallen victim to the IMEI bug that's been going around, but then I remembered something about that modem file not being usable on a Telus device... And had no idea how to get back to a working state. I already knew that none of my nandroid backups would have the modem in them, and the only "stock" flashables I could find were rooted kernels and a nearly-700MB "stock" package that wouldn't download any faster than 10 kb/s. I couldn't wait 20 hours for a download, I wanted my phone now! I tried using Odin with a few of the TAR packages I found, but that only made my situation worse to the point of failing to boot entirely, even restoring a nandroid wasn't helping anymore.
I started digging through the forums in the hope that someone had ripped the Telus modem into a CWM flashable zip, but had no luck. I tried both the Rogers and Bell modems with the same results. That's when I remembered that I had done a block backup, but I had no idea which block device was the modem, and my phone wouldn't even boot up to let me MTP the files over. I was left with CWM recovery as my only option, and had to ADB push 2.5 GB of .img files to the SD card, and DD them one at a time through the ADB shell.
Somehow, it all worked out, and I was back to running Stock Touchwiz with root, and was then able to restore a nandroid from yesterday and amazingly enough Paranoid Android booted up, happy as ever, and in came my emails and text messages. I know I'm lucky that my IMEI didn't get lost in that mess, but it just goes to show that there's no such thing as a backup being "too extensive". You never know when "mmcblk0p99" needs to be replaced with a known working copy.
I do believe im going to flash a stock/rooted ROM and then do a dd backup.
What options do you set for your backups?
Sent from my SGH-I747M using xda premium
I did as follows:
Code:
cd /dev/block/
ls
(get the list of mmcblk devices from here)
dd if=/dev/block/mmcblk0p1 of=/sdcard/dd/blk0p1 bs=4096
...
dd if=/dev/block/mmcblk0p99 of=/sdcard/dd/blk0p99 bs=4096
Obviously you shouldn't have 99 partitions... but you get the idea. I ran each line manually.
Then just move the /dd/ folder off your /sdcard/ and onto some safe storage.
I bought my device off someone from Craigslist 2 nights ago. Went home with device working great. Decided to update from ICS to JB, downloaded everything on the ol gaming machine, go to update using Kies, then BAM! Hung update, bricks phone immediately. Woo....great experience after dropping $400 on phone lol. Contacted Samsung support who told me my update wouldn't work until I registered? I told him it bricked my phone and it wasn't being picked up by computer anymore and I wanted to go back to ICS, he apparently thought waiting 24 hours would fix driver issues. Found JB official rom and learned about Odin. Worked at it until 2-ish am, never worked, woke up, did ICS instead same method, worked immediately, then update worked.
Moral of story? Don't trust Samsung apparently, go with 3rd party everything....
Can we share from other devices? Because I've had a serious one with my nitro HD lol.
Sent from my SGH-I747 using xda premium
After having my phone on stock rooted touch wiz since day one I was tempted to go jellybean... So months later I'd say Octoberish I finally said f**k it I'm going aokp... So I ran the task and k toonsen romantic for a while until they started porting the t mobile jelly bean stock tw rom... It made me miss tw and it's awesome camera app... So I flashed it after a week or so upon its release... First thing I noticed was the phone would get txts and phone calls rarely (keep in mind I'm in an lte area) and it became un bare able after about an hour. So I reverted back to my aokp nandroid and just figured I'd call it a day... But when I restored my nandroid my service was still messed up.. So after a bit of gooogling I checked my phone status to find my imei to be 0!!! I was beyond upset... So I tried re flashing stock in Odin and everything else I could find (unfortunately the imei restorer wasn't existent yet) and it came to the point where I left it stock and went to the att repair center down the road... The guy didn't know what was wrong with it and I just played dumb... After about 30 mins he came to the conclusion that my sim card slot was broken and I got a new phone...
After getting this one back home I instantly rooted it again
I've been staying away from those ported tmobile roms ever since
Sent from my SAMSUNG-SGH-I747
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rani9990 said:
Can we share from other devices? Because I've had a serious one with my nitro HD lol.
Sent from my SGH-I747 using xda premium
Click to expand...
Click to collapse
I dont see why not. All stories are interesting lol
Sent from my SAMSUNG-SGH-I747 using xda premium
No bad flashes .... Yet?
Sent from my Nexus 7 using xda app-developers app
Alright then,
It was my first day with the LG Nitro HD. My first smartphone (don't comment xD) and I was prepared to root and flash the living crap out of it. Done with rooting, now to install CWM. Simple enough, right? WRONG. This was the one time where google was not my friend. I followed a horribly misleading guide, and ended up with a paperweight. Turns out I flashed the recovery image to the secondary bootloader partition, thereby bricking my phone completely and utterly, irreparably. Had to ship it off to LG, and they fixed it, no questions asked. Thank God for that...
I had an HTC Touch Pro on Sprint. You had to flash a stock ROM before flashing a new custom ROM or the phone would stop working properly after almost exactly an hour. The file system would become completely messed up but the OS would keep running from RAM. It would fail to reboot after that. It was such a pain that I updated my phone every ~3-4 months.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
This one actually just happened this weekend.
So I finally got bored of having stock ICS on my i747 (Rogers), and since I loved cm 7/9 on my SGS2, I figured I'd go with the latest (15 dec) CM10 nightly.
downloaded to phone, rebooted in recovery, wiped data and cache, and installed the new firmware.
booted up and I've got no (or inconsistant) cell service. Figure it's a bug that hasn't been fixed, so no biggie, I backed up a week ago, so I decided to revert back to stock for the time being.
go through the process, and discover I still only have EDGE data.... WTF?
So I do some reading *AFTER the fact, hur dur...* and discover the IMEI wipe issue, and surprise surprise, I didn't do an NV backup, since I didn't know it'd get wiped.
Spent a couple hours keeping the phone / computer away from the 13 month old while I replace the IMEI NV data.... Still stuck on EDGE.... at least my IMEI is showing up though.
Nick
Odin back to stock worked for me when that happened to me.... YMMV.
Sent from my SGH-I747 using xda premium
The night I got my phone, I rooted via odin and when it booted, I'd get a framework FC every 90 seconds or so. It took me almost two hours to get cwm recovery on my phone to flash AOKP. Not a brick, but since I hadn't even activated it, yet....not happy.
Sent from my SGH-I747 using xda app-developers app
Each Phone an Adventure
I can completely relate to all of you. Though I'm new as a member (thought I already had an account but apparently I didn't), I've been using the forum for a long time. I have rooted four phones to date, each with its' own disaster story and happy ending. My latest was the AT&T S3. While not a disaster entirely, the no flash counter guide ended up not working out for me. So I paved my own trail so to speak and I found all the root dependencies (Recovery, ROM, the works) by myself. The entire process took me about a day. I also used TriangleAway which threatened explosions if anything went wrong and thankfully nothing did. I'm glad I never had to send a phone back, I've always been very cautious about any type of flashing and always read the forum before doing it.
When I was on the captivate, I really wanted JB so I thought I could grab the Nexus S JB ROM cause the devices were so close to each other. Flashed it via Odin. Good God was that a mistake. I couldn't get back to download mode using the button combo since the button mapping was all switched up. I had this one cable that would give me bad connection, so I jiggled that around in the port for 35 minutes trying to get download mode. Finally, I got it and flashed the stock package. Learned my lesson, will never flash something from a different phone or anything that won't work 100%.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
goobs408 said:
When I was on the captivate, I really wanted JB so I thought I could grab the Nexus S JB ROM cause the devices were so close to each other. Flashed it via Odin. Good God was that a mistake. I couldn't get back to download mode using the button combo since the button mapping was all switched up. I had this one cable that would give me bad connection, so I jiggled that around in the port for 35 minutes trying to get download mode. Finally, I got it and flashed the stock package. Learned my lesson, will never flash something from a different phone or anything that won't work 100%.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
The thing about the Captivate was, no matter what ROM you flashed, the jig ALWAYS worked. It saved my ass quite a few times, until that is, the memory in the phone decided to die. I could flash through Odin as much as I wanted and it would pass everytime, but never go past the boot animation.
Dave the Knave said:
The thing about the Captivate was, no matter what ROM you flashed, the jig ALWAYS worked. It saved my ass quite a few times, until that is, the memory in the phone decided to die. I could flash through Odin as much as I wanted and it would pass everytime, but never go past the boot animation.
Click to expand...
Click to collapse
Flash stock GB with forgot name of kernel baked in. After that in cwm recovery partition external SD card.. then reflash in Odin then install whatever ROM u want
Sent from my SGH-I747 using xda premium
Trying to use Kies to flash anything. That's always a bad story for me
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Don't attempt to explain to a friend of little flashing knowledge how to root their phone. He hard bricked my phone. Odin is easy if you read but he turned it into rocket science and yeah.. Had to wait for another phone
Sent from my SGH-I747 using xda app-developers app
Well let me begin by saying I have a Galaxy Nexus and have been flashing roms, etc like it's going outta style. It's very simple to me and I am no newb. So with this logic in mind, I got a brand new GS3 the other day and proceeded to do the same. First, it took my a while to realize there are so many variants of our phone, then when I did a search I saw that there was a i9305 that is LTE....you already know where this is going. I figured that was the correct variant, spent like an hour trying to install a recovery because of the auto wipe feature and thus increasing the flash counter to 10+ (wtf!). Finally I download a rom, flash it. Freezes half way through (knew that wasn't good) and when I pull the battery, BAM, bricked phone.
After some more reading, not only did I find out the correct way of flashing to not increase the counter but also that the Canadian versions are the i747! Luckily it happened a day after I got it and I switched it out for a new one. Moral of the story: If you are flash happy and think all phones are like the Nexus, that's your biggest mistake! lol

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