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[Q] samsung repp sch-r680 bootloop/softbrick?/?

Ok im an admitted "noob" to the whole android/linux op but not technically challenged at all.. and i researched ALL the info availible before rooting my alltel samsung repp (sch-r680) supposedly its an american clone of an another "galaxy gio", think its an asian model or something... anyway, i made a very careless mistake and erased my backup and system files and now am stuck in a bootloop... i can still access download mode and clockwork recovery but ive tries to flash stock roms with odin, install zips and restore backups(that i copied to my device via usb)... but nothing works, all the nandroid.md5 files respond with mismatch errors, and when i try to flash with odin, either the file passes and is useless to fix the problem or it gives an error something like "odin multidownloader has developed an error and closing"... ive been looking into flashing with fastboot or adb, i have all the neccessary files just havent figured out how to successfully execute... oh, and im having problems running some executable files (.exe), even at the comand prompt,(which im not alll that fluent in command prompt syntax). i know this is not a very popular model, and my carrier store (alltel) is like the last one standing i think but the same model is marketed by us cellular... anyway, sorry for the extremely long message, but i wanted to provide as much info as possible, so if anyone can help id greatly appreciate it... ive been without my andoid for like a week now and seperation anxiety is starting to set in.. pls help!!!
Also, i cant mount my system in cwm or through adb... Dont know if thatll help find a solution but i know its a problem within itself...

[Completed] How do I unbrick my phone?

First of all, I'd like to say that I know very little about how Android, electronics or mobile phones work in general, so everything I've done has been from internet tutorials. Please don't use any jargon as I probably won't know what you mean. ELI5.
A few days ago, I tried to root my phone and it didn't work. As a result the phone went into a boot loop and I didn't know how to fix it. The long and short of it was that I ended up flashing the stock firmware onto my phone and basically doing a complete factory reset. After some time trying this I managed to get the phone to start up and I was able to access the interface and all that. Unfortunately, my WiFi wasn't working (the button would simply turn off whenever I turned it on) so I had no way to download the most recent updates or apps or anything like that. After following several tutorials on how to fix this, such as flashing the modems and bootloader, I still wasn't having any luck. So I tried something that proved to cause even more problems - I tried to install a new kernel. Now my phone won't even boot past the logo. I probably didn't install the right one, but what can I say, it's not very clear which one I need.
Now I'd like to point out that as a layman who just wants his phone to work again, half of the time I don't understand what I'm doing or whether or not I'm doing it right. In other words, I realise that I've probably messed up my phone, but what can I do? I can't take it to a technician because I don't have the money for that, I can't buy a new phone for the same reason and I can't phone up and ask for a replacement because the warranty expired ages ago and I don't have the original documents here.
I've installed the Team Win Recovery Project on my phone and I have Odin installed on my PC as well.
TLDR; yes, I know I'm an idiot and I don't appreciate you telling me. I'd like to reset my phone to how it was before - the normal firmware, the normal kernel and all that, but I'd still like to have root access and keep the TWRP recovery mode too.
Model: Samsung Galaxy S4 GT-I9505
Model name: GALAXY S4 LTE
Country: UK
Version: Android 5.0.1
You'll probably need more information, so if you do just let me know and, if possible, where I can find it.

I have some good news. I managed to flash the firmware again and now I can access the phone again. However, the WiFi problem persists. I've tried looking on the internet for a solution, but I can't find one. I've tried flashing the modem and all that stuff, but it still doesn't work.
Oh, and by the way, I no longer have TWRP and I don't think I have root access anymore either (I had to do a data partition wipe as well).

I'd really appreciate a reply from someone. I've tried everything, but to no avail.

einwaliser said:
First of all, I'd like to say that I know very little about how Android, electronics or mobile phones work in general, so everything I've done has been from internet tutorials. Please don't use any jargon as I probably won't know what you mean. ELI5.
A few days ago, I tried to root my phone and it didn't work. As a result the phone went into a boot loop and I didn't know how to fix it. The long and short of it was that I ended up flashing the stock firmware onto my phone and basically doing a complete factory reset. After some time trying this I managed to get the phone to start up and I was able to access the interface and all that. Unfortunately, my WiFi wasn't working (the button would simply turn off whenever I turned it on) so I had no way to download the most recent updates or apps or anything like that. After following several tutorials on how to fix this, such as flashing the modems and bootloader, I still wasn't having any luck. So I tried something that proved to cause even more problems - I tried to install a new kernel. Now my phone won't even boot past the logo. I probably didn't install the right one, but what can I say, it's not very clear which one I need.
Now I'd like to point out that as a layman who just wants his phone to work again, half of the time I don't understand what I'm doing or whether or not I'm doing it right. In other words, I realise that I've probably messed up my phone, but what can I do? I can't take it to a technician because I don't have the money for that, I can't buy a new phone for the same reason and I can't phone up and ask for a replacement because the warranty expired ages ago and I don't have the original documents here.
I've installed the Team Win Recovery Project on my phone and I have Odin installed on my PC as well.
TLDR; yes, I know I'm an idiot and I don't appreciate you telling me. I'd like to reset my phone to how it was before - the normal firmware, the normal kernel and all that, but I'd still like to have root access and keep the TWRP recovery mode too.
Model: Samsung Galaxy S4 GT-I9505
Model name: GALAXY S4 LTE
Country: UK
Version: Android 5.0.1
You'll probably need more information, so if you do just let me know and, if possible, where I can find it.
Click to expand...
Click to collapse
Hi
We have a dedicated help section for the S4, you'll need to start a new thread and ask there, providing as much info as you can:
http://forum.xda-developers.com/galaxy-s4/help
A [HELP THREAD] Galaxy S4 | Ask any question | Noob friendly thread is also available for you if you dont want to start a new thread.
Good luck.

engloa said:
Hi
We have a dedicated help section for the S4, you'll need to start a new thread and ask there, providing as much info as you can:
http://forum.xda-developers.com/galaxy-s4/help
A [HELP THREAD] Galaxy S4 | Ask any question | Noob friendly thread is also available for you if you dont want to start a new thread.
Good luck.
Click to expand...
Click to collapse
Hi engloa,
It's OK, I've fixed the problem now; I installed a different ROM and now it works fine. Thanks anyway though.

GT-N8000 downgrade and no update.

I've been using Gnabo v_7 version for quite a long time, and a very simple and beautiful day when I woke up my Samsung GT-N8000 was stuck on bootscreen. I wasn't able to do much so I got this "Brazil stock rom" that I found in a website, and it flashed all right, except for the detail that there is something at the screen that I haven't got a bloody clue how to remove. hahaha
And still, whenever I try to install another room, I got stuck at bootlogo and so on. I'm kinda lost here, mind a little help?
I traveled around the forum but well, I'm a little dumb so I couldn't find any proper information about, how to solve this. I would like to know if there is a way to remove this thing from the main screen, and post here the image for you guys to see it please.
I tried to post the image here to make it easier understanding, but since I got this login recently I can't =\
Thanks

Install custom recovery (if you haven't already. If you already have it installed, make sure to update to latest version), root device, wipe everything and flash custom ROM.

DroidTwe4kz said:
Install custom recovery (if you haven't already. If you already have it installed, make sure to update to latest version), root device, wipe everything and flash custom ROM.
Click to expand...
Click to collapse
So far I've tried the rom = N8000XXUDNE4 [still bootloop], then another 4.1 android version of other German rom XXALGA and nothing. Downloaded 3 Brazilian versions, and nothing. [I am from Brazil]. The only one that worked flashing using Odin was one called "KIES_HOME_N8000UBALGA_N8000ZTOALG3_N8000UBLG5.tar". And still, not recognizing my cellphone chip, and with some big watermark at the middle of the screen showing some information about the ROM and the version is 4.0. Even though this one worked fine, I was able to root and when I tried to flash another room, BANG! Bootloop again! =\
I was looking at the forum topics and I read some about ADB or something like that can fix this and "break" this bootloop making the device work normally again with the roms. But i haven't got a clue how to use it. Please help me! =\

vitortakeda said:
So far I've tried the rom = N8000XXUDNE4 [still bootloop], then another 4.1 android version of other German rom XXALGA and nothing. Downloaded 3 Brazilian versions, and nothing. [I am from Brazil]. The only one that worked flashing using Odin was one called "KIES_HOME_N8000UBALGA_N8000ZTOALG3_N8000UBLG5.tar". And still, not recognizing my cellphone chip, and with some big watermark at the middle of the screen showing some information about the ROM and the version is 4.0. Even though this one worked fine, I was able to root and when I tried to flash another room, BANG! Bootloop again! =\
I was looking at the forum topics and I read some about ADB or something like that can fix this and "break" this bootloop making the device work normally again with the roms. But i haven't got a clue how to use it. Please help me! =\
Click to expand...
Click to collapse
You can use ADB to push/pull files to Android. I don't know if you can use it to fix bootloop. With it, you can also reboot to recovery and sideload zip

DroidTwe4kz said:
You can use ADB to push/pull files to Android. I don't know if you can use it to fix bootloop. With it, you can also reboot to recovery and sideload zip
Click to expand...
Click to collapse
Well, after 2 days of research and paying attention on things here, I found out that my problem is "/EFS error". Meaning to use ADB to recover or fix it? But I don't know how to use this. I've downloaded 3GB of it but I was lost about using, and uninstalled. Is is there any short or better version and some good tutorial about using to retrieve my EFS so I can install another roms? I'm using original stock rom now, Brazilian android 4.0 and that's the only only the device is working fine but of course missing things as my cellphone card and the yellow message at the top of the screen. Please guide me through ADB.
P.s Is there a way to create /efs or something like so the device work properly? Cause I've deleted when I installed some rom, and I have no backup here. =\
Thanks!

vitortakeda said:
Well, after 2 days of research and paying attention on things here, I found out that my problem is "/EFS error". Meaning to use ADB to recover or fix it? But I don't know how to use this. I've downloaded 3GB of it but I was lost about using, and uninstalled. Is is there any short or better version and some good tutorial about using to retrieve my EFS so I can install another roms? I'm using original stock rom now, Brazilian android 4.0 and that's the only only the device is working fine but of course missing things as my cellphone card and the yellow message at the top of the screen. Please guide me through ADB.
P.s Is there a way to create /efs or something like so the device work properly? Cause I've deleted when I installed some rom, and I have no backup here. =\
Thanks!
Click to expand...
Click to collapse
Here is tutorial about how to install ADB and Fastboot drivers and use them. Unfortunately, I don't know how to use it to restore efs. Sorry.

Grand X Max Z787 Stuck on Recovery Screen

Hello I am new to the forums and even though I've rooted a phone once (Anyone remember the HTC Incredible?) I've fallen out of the loop so to speak. Here is the situation.
I have a friend who is contently attempting to root phones. And he gave me the Grand X Max Z787, after he soft bricked it. He now has a Plus. After weeks of looking and some frustration on my part.
Here's what I now know he did, he was using a program called KingRoot and after it said success it booted to the recovery screen where it stays.
Here is what I've tried, factory reboot wiping data.
I've tried sideloading a Rom.rar I found in another thread. Side load doesn't work at all, and it's just this phone.
So I've tried loading different packages through the sd card. It says they're corrupt (Which it seems is correct when checking the information to the site it doesn't match)
So do I just need a stock copy of the OS or is there something else I can do? He said he didn't make a backup which isn't surprising to me at all. However I'm currently using a windows phone and need an android phone and would like to take advantage of this if possible. Also as most probably know when trying to load from the SD Card only .zip files show up. It was on the stock for a ZTE Grand X Max with cricket. So if someone has that backup and it's what I need (at least that's what I think, thank you in advance.) If this post is in the wrong place please move it to the right place or tell me where to place it. Thank you.

Firmware encountered a problem.......

Ok, so there was a thread on here for this issue, but it has been dead for 5 years so I hope it's ok I open this new thread.
I have been given a Samsung Tab 2 GT-P5110 by a colleague of mine. At some point in time he managed to corrupt the firmware to get the black screen of death 'firmware has encountered a problem.......'. This will not have been from flashing ROMs or attempting to root the device (he's an elderly guy, who recently asked me for help resetting his Google passwords, so rooting is well beyond his expertise). I first thought this won't be an issue, I'll hook it up to Odin, flash a recovery, stick it in download mode and then flash a new ROM...... However this failed, Odin confirming the process was unsuccessful. I understand this may be because the corruption is seated deeper than just the level of flashing a new ROM and have read flashing a new kernel may go deep enough to make progress, however, I have only ever used Odin for flashing ROMs so this is all new to me.
I would be very appreciative if someone was able to point me in the right direction, I have found some kernels to download which I think would be compatible, but I'm a little foggy on the steps I should take. Alternatively, someone may know another route to go down, I am also not afraid to open this little guy up and do some DIY surgery if needs be, after all I didn't buy the thing so I have nothing to lose.
Any suggestions would be great and if you want some more info please feel free to ask.
Thanks in advance.

elboobio said:
Ok, so there was a thread on here for this issue, but it has been dead for 5 years so I hope it's ok I open this new thread.
I have been given a Samsung Tab 2 GT-P5110 by a colleague of mine. At some point in time he managed to corrupt the firmware to get the black screen of death 'firmware has encountered a problem.......'. This will not have been from flashing ROMs or attempting to root the device (he's an elderly guy, who recently asked me for help resetting his Google passwords, so rooting is well beyond his expertise). I first thought this won't be an issue, I'll hook it up to Odin, flash a recovery, stick it in download mode and then flash a new ROM...... However this failed, Odin confirming the process was unsuccessful. I understand this may be because the corruption is seated deeper than just the level of flashing a new ROM and have read flashing a new kernel may go deep enough to make progress, however, I have only ever used Odin for flashing ROMs so this is all new to me.
I would be very appreciative if someone was able to point me in the right direction, I have found some kernels to download which I think would be compatible, but I'm a little foggy on the steps I should take. Alternatively, someone may know another route to go down, I am also not afraid to open this little guy up and do some DIY surgery if needs be, after all I didn't buy the thing so I have nothing to lose.
Any suggestions would be great and if you want some more info please feel free to ask.
Thanks in advance.
Click to expand...
Click to collapse
flash a custom recovery, and install this, https://builds.unlegacy-android.org/aosp-4.4/espresso/ua_espresso-4.4.4-20171105172717.zip

Thanks for the reply. I have attempted to flash a recovery, however every one I've tried fails and tells me 'NAND write failed'. I tried the TWRP recovery and philztouch. You don't have a link to a recovery you think might work? I'm pretty sure I've been using recoveries that should work, but you never know.