Samsung J7 - Android Q&A, Help & Troubleshooting

Hi there,
I'm hoping someone can help me. I bought a second hand Samsung J7. It seemed to work fine but then when I had to restart the phone when it was at about 28% battery, it would start to boot and then turn off, I had to charge it to bring it back on. After this happening a number of times I looked for some help online and was advised to do a soft reset. When I did this, the phone came on and had a page entitled "Unmodified System Partition" again I looked this up and it appears that the phone has been rooted and TWRP has been installed.
Is there a way of getting rid of anything the previous owner did and get the phone up and running for a noob to use, as if bought brand new? And could the restart/battery issue be related or should I get a new battery?
I'm not tech savy, but I'm not a technophobe either, and any help I would really appreciated, so my son can have his first phone!
Thank you for taking the time to read.
Kindest regards xx

Claireabel said:
Hi there,
I'm hoping someone can help me. I bought a second hand Samsung J7. It seemed to work fine but then when I had to restart the phone when it was at about 28% battery, it would start to boot and then turn off, I had to charge it to bring it back on. After this happening a number of times I looked for some help online and was advised to do a soft reset. When I did this, the phone came on and had a page entitled "Unmodified System Partition" again I looked this up and it appears that the phone has been rooted and TWRP has been installed.
Is there a way of getting rid of anything the previous owner did and get the phone up and running for a noob to use, as if bought brand new? And could the restart/battery issue be related or should I get a new battery?
I'm not tech savy, but I'm not a technophobe either, and any help I would really appreciated, so my son can have his first phone!
Thank you for taking the time to read.
Kindest regards xx
Click to expand...
Click to collapse
Your phone is in a boot loop because the previous owner messed something up. You can either flash a stock ROM via Odin or an easier way since you have TWRP installed is flash a custom ROM found on XDA. Make sure to read the info and the install instruction involve flashing with TWRP. Custom ROM can be found here: https://forum.xda-developers.com/galaxy-j7-2017/development. I looked really quick this one is easy to install: https://forum.xda-developers.com/galaxy-j7-2017/development/rom-cleanoreov1-t3875903

Related

[Q] Can't Get into Samsung Recovery Mode to Root

Hello folks,
Generally loving my Vibrant, of course hungry for Froyo. I have two Vibrants, the first I've been using and have modded it with root and other enhancements. I gave the other phone to a friend as a gift, but when I wanted to root theirs using the same method I've used on multiple occasions, it would NOT boot into the recovery mode. I use the UP + DOWN push, plus the power button. No dice, just get the cheesy "come together" Tmobile screen, I tried up, down, waited for the Samsung to flash twice, no dice. It was not that complicated on my phone and I can continue to do so. I have looked up threads and there is suspicion that T Mobile disabled this on later vesrions? This version was shipped to me slightly after my own, within a week or so.
It would be disheartening if I couldn't root and make his phone more efficient to deal with the battery hog issues as well as other enhancments. Maybe I'm doing it wrong but I've treid multiple combinations and never get into the utility/recovery screen.
Any thoughts on this? I tried rooting before that with the Ryan one click lag fix, and it seemed to indicate it was done,b ut then Iwhen I opened ROM manager, it said it was not rooted yet. Then when I tried the one click app fix again, it mentioned it couldn't because soemthing about the SD card mounting,etc. I could put the stock PIT file on it via ODIN could I not? But I dont' want to go to all that hassle if it's something else. Is there a another app solution that can root for you? I can mount and drag the update zip there, but can't get tot he screen to reinstall packages.
Hopefully TMobile isn't stripping this down so we can't customize and it's something else but I'm trying all combinations short of doing the hokey pokey.
Thanks in advance!
Kelly
Samsung Vibrant
Apparently either Samsung or Tmobile are having the option disabled via the normal ways to get into recovery. There are numerous other threads regarding this throughout the forums detailing other peoples experiences regarding this.
Take a look here for one:
http://forum.xda-developers.com/showthread.php?t=771247
Join the club. I'm on my third vibrant with this same issue. I am returning it this week for a refund. My first....and last samsung phone.
thank you guys, I was afraid of that. one of the phones greatest assets was it's hackability. Froyo had better do something with battery consumption, speed, etc, or this phone will be a great screen and not much more. boo to hardware lockdowns! let the hackers hack and if you want to void the warranty, do it. I'll see about this ADB mode, I'm wondering if someone can create an app that would successfully root so ROM manager will work. I wonder why the one click fix lag app, which supposedly roots, did not. It seems like an overall lock down on this access?
At any rate, I'll try the other options but it's looking like more and more, my buddy will be a slave to Samsung release timeframe, and thats assuming froyo and updates will fix significant bugs and improve battery life.
thanks again guys! I'll keep trying.
And what about the download mode, can you get in it?
not sure, you mean the little digging android feller? I will try that, I gave the phone to my friend but sent him the page in this thread earlier regarding multiple attempts to get into either / or mode. would that actaully help install the packages aka root the phone? I only used that last time to reinstall via Odin, the T Mobile factory build because it was soft bricked due to a bad lag fix that froze the phone on the Samsung logo.
download mode , can that get it rooted? Or just wanting to know if all hardware access has been blocked?"
not sure, you mean the little digging android feller? I will try that, I gave the phone to my friend but sent him the page in this thread earlier regarding multiple attempts to get into either / or mode. would that actaully help install the packages aka root the phone? I only used that last time to reinstall via Odin, the T Mobile factory build because it was soft bricked due to a bad lag fix that froze the phone on the Samsung logo.
download mode , can that get it rooted? Or just wanting to know if all hardware access has been blocked?
Yeah, that the digging guy. It won't help you to get rooted, but i can't get in download mode, so if you can advise me how can i do that, i appreciate

[PLEASE HELP] T-Mobile Galaxy S5 Random Reboots, Freezes and Force Closes.

Hello, This is my first Post on XDA so please help me to familiarize myself with rules and procedures and I apologize if I break any in any way.
Okay, So My phone (SM-G900T) is about 5 months old. I bought it in August, Without insurance (Terrible Idea), and now it is having problems. In the amount of time I've had it, I rooted it in mid to late September and used only an app called Xmod for a game. I then started using greenify, solid explorer and eventually used Xposed installer to try a few Xposed modules. Specifically I used, the YouTube adaway, Rich Pandora notification and that's about it. I also later installed Samsung Tools to backup my IMEI and important partitions.
A few days ago my phone randomly rebooted in the middle of a YouTube video so I let it reboot, but it rebooted again, and again, and again. I pulled the battery and turned it back on but the same problem persisted. I couldn't do anything to fix it so I just decided to factory reset the device through the stock recovery. Also, I did not install any custom roms or anything either. The factory reset did nothing. Now when I was in setup, everything force closed, froze and rebooted, repeatedly. So I found the original firmware that my phone came with and flashed it to my phone through Odin because I literally had no hope of what to do anymore. The problem lessened so I didn't install all my apps and overload the device as it would reboot when the RAM would get pretty full or too many things were running simultaneously in the background or foreground. The problem got a little worse so I factory reset one more time and it lessened again but now it came back and factory Resetting isn't lessening the problem. Now it just force closes a bunch of stuff and freezes and reboots into a bootloop midway through initial setup. I am desperate at this point right now and I need help from you guys. I don't have warranty because I rooted and I made the Extremely stupid decision of not getting insurance. So please can anyone help me out? I will be eternally grateful if you can help me turn this $609 brick into a phone again.
I will try to check this thread daily, but I go to school and I may not respond immediately, so please understand.
ahmed12534 said:
Hello, This is my first Post on XDA so please help me to familiarize myself with rules and procedures and I apologize if I break any in any way.
Okay, So My phone (SM-G900T) is about 5 months old. I bought it in August, Without insurance (Terrible Idea), and now it is having problems. In the amount of time I've had it, I rooted it in mid to late September and used only an app called Xmod for a game. I then started using greenify, solid explorer and eventually used Xposed installer to try a few Xposed modules. Specifically I used, the YouTube adaway, Rich Pandora notification and that's about it. I also later installed Samsung Tools to backup my IMEI and important partitions.
A few days ago my phone randomly rebooted in the middle of a YouTube video so I let it reboot, but it rebooted again, and again, and again. I pulled the battery and turned it back on but the same problem persisted. I couldn't do anything to fix it so I just decided to factory reset the device through the stock recovery. Also, I did not install any custom roms or anything either. The factory reset did nothing. Now when I was in setup, everything force closed, froze and rebooted, repeatedly. So I found the original firmware that my phone came with and flashed it to my phone through Odin because I literally had no hope of what to do anymore. The problem lessened so I didn't install all my apps and overload the device as it would reboot when the RAM would get pretty full or too many things were running simultaneously in the background or foreground. The problem got a little worse so I factory reset one more time and it lessened again but now it came back and factory Resetting isn't lessening the problem. Now it just force closes a bunch of stuff and freezes and reboots into a bootloop midway through initial setup. I am desperate at this point right now and I need help from you guys. I don't have warranty because I rooted and I made the Extremely stupid decision of not getting insurance. So please can anyone help me out? I will be eternally grateful if you can help me turn this $609 brick into a phone again.
I will try to check this thread daily, but I go to school and I may not respond immediately, so please understand.
Click to expand...
Click to collapse
Do you have SD card installed? If you do try taking it out and leave out or replace with another SdCard. Then flash the original stock firmware as you said you did before through (odin!) Then if that dont work try kias3 and use the emergency firmware recovery tool. Before you do any of this make sure you factory reset through stock recovery if possible.
Sent from my SM-G900T?
---------- Post added at 03:17 PM ---------- Previous post was at 03:07 PM ----------
Have you tried this tool? I had the same issue with my phone and reinstalled firmware and stock recovery through this tool and it stopped. If none of these tips work id say your phone may be borked or have faulty hardware. Take a look here as welll. Hope you can get your phone back to normal. I can understand what you're going through, like i said i had same issue with mine and mine has seems to be fine as of now. http://forum.xda-developers.com/showthread.php?t=2721146 . GOOD LUCK
Sent from my SM-G900T ?
beachbum40 said:
Do you have SD card installed? If you do try taking it out and leave out or replace with another SdCard. Then flash the original stock firmware as you said you did before through (odin!) Then if that dont work try kias3 and use the emergency firmware recovery tool. Before you do any of this make sure you factory reset through stock recovery if possible.
Sent from my SM-G900T?
---------- Post added at 03:17 PM ---------- Previous post was at 03:07 PM ----------
Have you tried this tool? I had the same issue with my phone and reinstalled firmware and stock recovery through this tool and it stopped. If none of these tips work id say your phone may be borked or have faulty hardware. Take a look here as welll. Hope you can get your phone back to normal. I can understand what you're going through, like i said i had same issue with mine and mine has seems to be fine as of now. http://forum.xda-developers.com/showthread.php?t=2721146 . GOOD LUCK
Sent from my SM-G900T ?
Click to expand...
Click to collapse
Okay, so I'm resetting it back to stock firmware through Odin as we speak. And yes, I had an SD card and have already taken it out and left it out and reset but still the problem has persisted, I will definitely try the solution you just mentioned, here I go. And thank you for replying...
Edit:
Hold on, which do you want me to try first? kias3(can you please link it if possible) with emergency firmware recovery tool? OR the Unified Android Toolkit?
Also... I don't exactly know how to use the toolkit, can you verify the steps to take to use the toolkit properly if I should use this solution? I'm sorry but I'm not very advanced at Android development, just intermediately experienced I suppose...
ahmed12534 said:
Okay, so I'm resetting it back to stock firmware through Odin as we speak. And yes, I had an SD card and have already taken it out and left it out and reset but still the problem has persisted, I will definitely try the solution you just mentioned, here I go. And thank you for replying...
Edit:
Hold on, which do you want me to try first? kias3(can you please link it if possible) with emergency firmware recovery tool? OR the Unified Android Toolkit?
Also... I don't exactly know how to use the toolkit, can you verify the steps to take to use the toolkit properly if I should use this solution? I'm sorry but I'm not very advanced at Android development, just intermediately experienced I suppose...
Click to expand...
Click to collapse
Try kies first that dont work try toolkit. Just Google how to use the toolkit it's pretty self explanatory but I don't think you'll need to use the tool kit anyways. http://www.sammobile.com/kies/
HOW TO USE RECOVERY TOOL IN KIES
http://forum.xda-developers.com/showthread.php?t=2261153&page=4
beachbum40 said:
Try kies first that dont work try toolkit. Just Google how to use the toolkit it's pretty self explanatory but I don't think you'll need to use the tool kit anyways. http://www.sammobile.com/kies/
HOW TO USE RECOVERY TOOL IN KIES
http://forum.xda-developers.com/showthread.php?t=2261153&page=4
Click to expand...
Click to collapse
okay, I tried resetting it using Kies3 but the device was not recognized so I had to find a different way because the guide on how to use Kies advised using Odin if Kies didn't recognize your phone. I don't have a code either, So I tried reflashing the stock firmware through Odin and it started up, froze and went into what I presume to be a bootloop as it is stuck on the T-Mobile splash screen with the notification light pulsing continuously. Did I also mention where my phone says Knox warranty void 0x1 there is another statement that says "Counter: 4" or something like that, while I am in download mode, does this have any significance? but yeah, other that Kies and Odin, I'm not sure if the android toolkit will help, because it's basically doing that same thing as I am with Odin, just more automated... Or am I wrong?
but as far as I know, that toolkit is literally the last option I have left, I guess I'll be trying that out tomorrow, with option 10 I believe where it says "10. Download, Extract + Flash Stock Firmware via Odin" but I'm not sure what ADB mode means... I can't really boot up the device so I don't know if that applies
Also, on a side note, how much do you think this will cost if I were to send the phone to Samsung and pay for repairs out of pocket, and do you think they could even repair it at all?
You know what... Do you think if I somehow installed CM12 on the device that the problem would fix itself? Because to me it seems like it's the Samsung software itself that is causing all this trouble along with a few Google apps. Now how would I root it and flash CM12 if it won't boot up fully...
Not sure if this would brick my phone either, let me know if it would if I tried to root through Odin and try to install CM12 through CWM recovery or something
Just throwing ideas, hoping this thread doesn't die before my problem is solved
Also, does geeksquad repair Samsung phones one time for a low fee if you've voided warranty?? If so then this could possibly be my final solution.
Also Never EVER buying a Samsung device again, they just aren't what they used to be back in the day, the other OEMs have caught up and left Samsung and their revenue in the dust...
ahmed12534 said:
Also Never EVER buying a Samsung device again, they just aren't what they used to be back in the day, the other OEMs have caught up and left Samsung and their revenue in the dust...
Click to expand...
Click to collapse
I disagree with this completely. Very few other handsets can hold a candle to the S5 or the Note 4. I don't know of anybody that has the problems you are describing with their phones without a hardware issue of some type or bad app. The Samsung software runs perfectly on millions of devices without the issues you're having. Therefore it's probably a bad app you've gotten a hold of, or you have a bad phone. CM12 will only introduce more issues and probably won't solve anything.
A stripped down custom rom might be a good bet because you can then start adding your apps back to find out where the issue is, or if it still has the same issues then it almost guarantees that there is some kind of a hardware issue.

elephone p2000 working but totally mesed up, read please and help

hi,
"maybe you saw this post elsewhere but i was forwarded here so the rest is the same"
have elephone p2000 with some custom rom on it and working stock recovery. than i flash new rom called resrom 1.5, rooted BUT internal storage is access denied and 0kb. Just to say that my usb port is broken and will be hard to replace it because someone was trying to make it work and totally screwed up.
So anyway I cannot connect to a pc and fix things. Next, cant access recovery, tried to flash new one but to no avail. I am still rooted but even when using some apk to flash new rom or recovery i get msgs like "not enough space" or nothing is happening.
info on the phone:
ELEPHONE P2000 MT 5692
4.4.2
MOLY.WR8.W1315.MD.WG.MP.V35.P8.2014/11/03
KERNEL 3.4.67 [email protected] #1
BUILD P2000_20150228_RESTORN
Play store ok, calls and the rest is fine, apk i am using: mobileuncle, rashr, auto flasher but nothing gets job done, flashyfy doesn't work and many others. I was looking into init files saw some guide but don t want to mess things even more so i gave up, also wanting to flash boot.img but no proper or functional apk for it.
sometimes on phone start stuck in a loop of screen turn on for 20 sec and then off and its like that until i remove battery, all before rom logo, same thing if i try use buttons combination for recovery or whatever i press in any combination nothing changes.
This is not my first smartphone but is of this kind and funny companies, had problems before with Sony, Samsung but in this extent never, always find YOU guys everybody clever in some fields and as a community more than THE BEST, as you can see i dont post or seek answers by asking, i rather research until now. I fell hopeless, useless and never more stupid, or i m just tired of looking for the answer. In some other case i would give it to my child to play the games an to hell with this phone but its my wife's and she dont want to by a new phone for some reason. Help me to be the man of the house again, kidding, loosing it....
I think I gave you overall picture of the phone state and someone might show me the way to have fully working phone. I forgot, if you are wondering how do i charge battery, well I take it out twice a day and charging on the base of other broken phone, that part i did cover, help me with the rest.
p.s my SD card is working most of the time so this is my only connection to a pc....
Deleted

Redmi Note 3 Pro will not boot - A newbie in need of a couple answers

Hello everyone! First of all thanks for reading through my post, I'm quite the newbie to this Android stuff so please bear with me.
So I ordered the Note 3 Pro online, and it arrived yesterday. I was very happy about the device, but not even a whole day went by and as I did a simple google search (maybe it was running an update on the background?) my phone crashed. It rebooted on it's own and ever since it just keeps getting stuck in the MI logo.
Sometimes the phone loads a bar and reboots without loading the whole way through. This morning it actually loaded all the way once. It made it into my initial screen but immediately rebooted.
Since then I have found that this is apparently a common issue. I was surprised to find that I couldn't go into recovery mode (just..why?) and that I would have to flash my phone. If someone would kindly answer them, I would love to ask just a few questions about this.
1) Is flashing the only/best approach to fixing this issue?
2) What tutorial do you guys recommend? Should I flash it with the locked bootloader, or should I try to get the official bootloader unlock thing from MI? I'm just looking for the most efficient way of getting my phone back, as I'm not one to fiddle that much with different ROMs and stuff.
As you can imagine having this issue on day 1 is a little exhasperating, and as a new comer to all this stuff, it's all abit overwhelming.
Thanks in advance for your time :highfive:
Flash the original MIUI ROM via EDL. It's described a 100 times here. If the problem persist it's hardware related

Note 4 Bootloop - Stock Phone

Hi everyone!
This is my first post on here. I appreciate the value of all the info here and have been browsing unregistered for awhile.
Yesterday while using my Note 4 N910V, the phone cut off with 10% battery. Not unusual. I have 3 batteries for the device and it happens when putting a load though it while low. However this time it appeared to kill the phone. Now I'm trying to figure out if it fried something on the logic board when it cut off suddenly this time or if it corrupted my ROM.
I work in IT so I'm not totally without some kind of knowledge. So I installed ODIN and found a stock Verizon ROM and installed it. ODIN said it was successful and still, the phone is stuck in a bootloop. I have never rooted or loaded a custom ROM on this phone. It is completely stock. Am I missing something here? Do I have to mess with the bootloader or something? After ODIN installed the stock ROM I performed a whip data/factory reset. Still the same bootloop. It will get to the Verizon splash screen and reboot. I am able to get into recovery mode as well. The phone doesn't turn off or anything while in the Recovery menu. This is what lends me to believe it may be something corrupt with the ROM and the hardware might be ok.
Any insight would be greatly appreciated. Thank you very much!
Robert

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