galaxy J7 Helplessly bootlooping - Samsung Galaxy J7 Questions & Answers

I am asking for help if anybody here can spare the time. I had my J700P Virgin Mobile rooted and xpose installed. I had notification that I had missed at least one update and wanted to go back to original firmware. I flashed back to original version of firmware no problem and the phone took the update. After the update I was unable to get wifi working again so I tried to reflash the original firmware. Phone flashed fine but when trying to reboot the phone is stuck in bootloop. I have reflashed the original firmware and the new updated firmware several times, tried to restore 3 TWRP backups, everything I can think of and all bootloop. I get the bootup screen - galaxy J7 then it goes to the samsung screen then to the Virgin Mobile screen then loops over and over. Every so many loops it goes to android starting up screen optimizing various numbers of apks, usually 1 of 1. I can do pretty much anything needed, use odin, access adb ect. Any other info needed please let me know. I am at the end of my knowledge on what to do-----HELP!!!!!!! Thanks.

kjslabber said:
I am asking for help if anybody here can spare the time. I had my J700P Virgin Mobile rooted and xpose installed. I had notification that I had missed at least one update and wanted to go back to original firmware. I flashed back to original version of firmware no problem and the phone took the update. After the update I was unable to get wifi working again so I tried to reflash the original firmware. Phone flashed fine but when trying to reboot the phone is stuck in bootloop. I have reflashed the original firmware and the new updated firmware several times, tried to restore 3 TWRP backups, everything I can think of and all bootloop. I get the bootup screen - galaxy J7 then it goes to the samsung screen then to the Virgin Mobile screen then loops over and over. Every so many loops it goes to android starting up screen optimizing various numbers of apks, usually 1 of 1. I can do pretty much anything needed, use odin, access adb ect. Any other info needed please let me know. I am at the end of my knowledge on what to do-----HELP!!!!!!! Thanks.
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restoring a twrp backup breaks the phone. go here http://forum.xda-developers.com/galaxy-j7/development/twrp-3-0-2-0-beta-j700p-2016-fixed-t3485766 and follow the steps for fixing your efs. then you could flash stock rom again.

Bootloop fix
That did the trick!!!!!!!!!!!!!! You are the wizard of the day. Thanks from the bottom of my heart. I'm trying everyday to learn because I like to tinker with these expensive toys. You saved me a lot of scouring over endless piles of info.

Related

[Completed] Formatting Samsung S3 Problem

Hey, so basically I'm in a situation where I have no idea what to do.
I recently just got a new phone, and am going to give my Samsung Galaxy S3, SGH-T999V model - from Wind Mobile to my Dad. Basically, when I first got the phone - a couple months after, I decided to try Rooting it, and I did, successfully. Since I didn't really know what to do with my rooted phone, I decided to unroot it - then tried rooting it again some months later, but it didn't work successfully. Basically my phone wasn't rooted, but I had the "Team-Win" recovery on it.
I wanted to bring my phone back to it's original state - and have the stock recovery on it. After some Googling, my solution seemed to be to flash the stock rom for the SGH-T999V model onto my phone using Odin. And I did that - and it worked successfully. But I still couldn't check for OTA updates or anything, it said my phone had still been modified in an unauthorized way.
Now that I need to give the phone to my Dad, I have to format the device and erase everything. This is where my problem starts. When I try to format it (using the Stock recovery), I see a bunch of error messages, with the Android logo falling down in a kind of dead way. I reboot my device, and nothing changes.
It still has all my data, and everything on it.
Sorry if this is the wrong area to post this (I'm relatively new to the forum), and if my problem doesn't make much sense - I've tried being as detailed as possible. Could anyone help?
Hi, thank you for using XDA Assist. Flashing the stock firmware should show you to get ota's. This should have everything you need,http://forum.xda-developers.com/galaxy-s3/general/samsung-galaxy-s3-sticky-roll-thread-t2344125. Also, you can ask further questions here,http://forum.xda-developers.com/galaxy-s3/help/help-thread-galaxy-s3-question-t2690307
Thread closed

[Q] Huge Problem (Build.Prop/Bootloop/Cant Flash)

Hi everyone,
Right I have a serious issue with a 4 day old S6 from the UK bought SIM-Free off Amazon.
My phone was rooted but didn't have ADB or any sort of custom recovery. I edited the build.prop file for the RAM management thing, and created a copy back up on my storage. I didn't like it too much, so I copied the back up over the edited one and restarted - phone went into boot loop.
I have attempted to use Odin and flash a stock firmware ROM (had to settle for a H3G variation because the XEU unbranded was off some download website that takes 10 hours to download). I went through all the steps with Qbking77's walkthrough with Odin and it came up that it failed at the end.
The phone then booted into the Emergency Recovery screen, and couldn't get back into Recovery (to do the Smart Switch recovery), and can only get back into the Download bit.
I've tried flashing it again, and no avail.
I seriously, seriously hope someone can help me out here, it's a brand new phone and I love it and I don't want to be left with a brick.
Thanks.
I was in the same boat, if you rooted and didn't trip Know, your best bet is the Samsung Store, they're all over the UK
Well an update:
After the third time flashing failed, I did a root via Odin which had previously failed, and it booted up, completely normal and set up the device as normal.
I have no idea how that worked - but it did. Probably tripped the Knox I think but it works.

[Completed] [Q] Don't really know where to go from here

Alright, this is a long story.
I own an LGMS500 from MetroPCS (or the LD500 Tmobile version).
A year back I rooted the phone, but a couple of months ago it started to act up Giving me the message "unfortunately, the process com.android.phone has stopped." at first a restart would fix it but a few days after it got to the point where I couldn't use it. So I set out to fix it.
I knew I needed to flash it back to stock ROM since a factory reset and a hard factory reset didn't do anything. But for some reason I decided that flashing a custom ROM was a better Idea. I ended up flashing the xperia ROM and it soft bricked it ( It turned on and booted but wouldn't let me past a black screen, yet I could lower the status bar).
Then I tried to flash the stock ROM or the "MS50010e_03.zip" to load with KDZ. from:
http://androidforums.com/threads/metropcs-unbrick-kdz-for-metropcs-updated-11-13-2013.788365/
But every time I tried it it came back with a parameter error, I changed many things with no avail, Then I figured that since the phone had a tmobile version I flashed the tmobile stock ROM onto the phone and it worked, even let me use data. But after a few days it stopped letting me use data, with a "Service Disabled message on the status bar where it should've shown the mobile carrier. When I went to check my phones mobile data status I noticed that My IMEI # was unknown.
After some research I came to the conclusion that something was wrong with my EFS folder since that's where all that information resides.
At the moment the phone restarts after about 3 minutes of usage, I should also mention that I rooted the phone after the tmobile stock ROM install because of what this thread suggested I should do.
http://forum.xda-developers.com/galaxy-s2/general/guide-recover-imei-9-steps-t1264021
Basically I need to know if my conclusions are correct and what kind of steps I should take to recover the phone if possible.
A
FIXED it
I just loaded the MS50012b_00.kdz from:
android creations on the weebly site (sorry I can't post links yet)
This is the only image that worked the first time. After that my phone worked normally, accessed the mobile network correctly and the crashing stopped.
I even installed the xperia ROM that is on that page. Everything is running smoothly now.

So im assuming i just messed up myself here

I got this s6 back in march or april and it was on 5.0.2 and well now that iv've updated to the OTAS 5.1.1 OFE i was curious about root and i continued with a thread about rooting it and etc
( i kinda regret that now, i shouldve stayed on 5.0.2)
but the main reason i rooted was to recover files and welli did but i installed dr fone on my computer it asked for my phones root permissions so i went ahead and rooted it but after a bit i noticed it started to freeze my phone and after a bit it just stopped working.
i turn it on and restart it i see a blue led cycling and i see the sprint spark screen but it does nothing from there.
and so i stupidly went to to stock recovery, wiped cache, and factory resetting it and now idk what to do
there isnt an OFE stock tar yet so i cant fix this on my own, im just thinking if i flash twrp right now and then flash a custom rom will that work?? for my OFE build
am i able to or should i just download the stock tar 5.0.2 to reflash it or will that just basically brick me completely??
also i did have insurance for this and i thnink i just blew that one too :/
ive noticed mine said this
G920PVPU2BOFE
and not G920PVPU2BOF7
so does that mean im able to use the stock firmware from the website and reflash it or like what do i do...
SO what i did countless of researching
i ended up having the
custom binary blocked by FRP lock, by forgetting to unlock oem before updating the Twisted Projects SuperSu or User since it asked me to updated i ovbiously just went ahead of myself and that happened thus into this Boot Loop Soft
and im flashing with ODIN the stock 5.1.1 OF7 tar its surprisingly working. ( i was originally on the OFE OTA tho.)
unlike the Twisted Project custom roms, kernel and or twrp setup, i couldnt boot into the twrp or even past the android screen, and well the only option i had was just Download Mode.
And this basically saved me.
Very Informative

In a right mess trying to return to stock

Please could someone help ! I'm trying to unlock my XT1032. I have the correct Sim-Unlock (network unlock) code from my old telco, but... it won't work because the phone is rooted, bootloader unlocked (S-ON) running CM13.
I figured that returning it to a stock build would allow me to unlock the phone, then I could re-root and return to CM13 on my new network.
However..... there are about a dozen guides on returning a Moto G to stock and the first one I tried left the phone stuck on the 'Warning: Bootloader is unlocked' message. Since then, I've tried several other guides and have got nowhere fast. I've been on this for four hours now and the only thing I seem to be able achieve is to get TWRP or CWM recovery on there by flashing from fastboot. Every other image I try either gives 'preflash validation failed' messages, sticks on the Bootloader Unlocked screen or gets it stuck in a bootloop!
I just want to switch networks... Why is this so bloody difficult ?
What Firmware did your XT1032 originally come with? or which Carrier?
Kitkat I think, and it's Tesco (UK).
I subsequently did the OTA update to Lollipop and then.... WHOAAAAA.... hold on... it's booting !!!
I don't know how, or what I've done to get this far, but the only thing I can think of that's changed is that the battery is now at 100% charge. It appears as though it's successfully flashed the 5.1 untouched ROM from http://forum.xda-developers.com/devdb/project/?id=7981#downloads
But, I've tried flashing that loads of times this evening and it's failed everytime.
Having said that it's booting, it's sitting here on the Motorola logo - and it hasn't got that far in the last five hours.... I'll be back shortly !
Update: It worked ! It completed the boot, I put the new SIM in, it asked for the unlock code and this time it worked OK. Now I'm tackling putting CM13 back on it. I think I'll stick with TWRP rather than CWM recovery, as long as TWRP can handle the automatic updating for the CM nightlies.
I have no idea what went wrong there - maybe it was just that the battery had to be at 100% ?? Who knows... Thankfully I doubt I'll be tackling that again !
I don't know if things have changed, but I would be careful with OTA Updates in CM. People have hard-bricked (phone is effectively destroyed) applying updates in this way. I also suggest you avoid official Motorola updates, rather use the factory firmware images available here: (which already include the content of OTA Updates)
[INDEX] Moto G [Falcon][Peregrine] Factory Firmware Images​
Thanks for replying anyway mate. In the end, it's all good now. Unlocked and back on CM13 and on my new network !
Ahhh... not so good after all. The phone reboots every time you try to uninstall an app. I've tried flashing back to CM12.1, the latest stable release, and it does the same, so I've obviously screwed something up along the way.
Could someone help me flatten this thing completely and get it working normally please?
I've tried reflashing loads of times, even tried Cyanogen Recovery instead of TWRP but nothing I do gets rid of this reboot problem.
Can anyone assist please?
OK, so I've followed the procedure detailed here: http://forum.xda-developers.com/moto-g/development/rom-stock-motorola-lollipop-rom-t3017510 and flashed the Untouched 5.0.2. EU Stock ROM successfully, but it still reboots when you try to uninstall any app.
Whatever it is that's causing this is not getting overwritten by the flashing procedures I'm using is it ?
HELP !!!!!
@aneng64 - You have not done what I told you to do. Read my post again.
Yes I did... and I still had the same problem. It was only once I stopped trying to flash zips from TWRP and used mfastboot to flash the whole set individually (non-hlos, motoboot etc) that I got it to behave. The issue, incidentally, seemed to be the same one mentioned elsewhere here that also causes settings to crash when you try to go into settings, security.
Once it was stable with a stock ROM, I was able to flash CM13 again and it's now sorted. Thanks for your help anyway.

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