[Q] Broken Home Button - Recovery Mode - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

So long story short my home button doesn't work and my phone won't turn on. Do I have to plug in my USB jig and return to stock and lose everything or is there some other way i could get into recovery mode? Is there any way to get into recovery mode from download mode? I can't use adb reboot recovery because it just says device offline so is there any way around that?

Plays2 said:
So long story short my home button doesn't work and my phone won't turn on. Do I have to plug in my USB jig and return to stock and lose everything or is there some other way i could get into recovery mode? Is there any way to get into recovery mode from download mode? I can't use adb reboot recovery because it just says device offline so is there any way around that?
Click to expand...
Click to collapse
a usb jig will work, if it doesnt MobileTechVides are there for your to fix your problem

Related

Reflash poblem after boot loop

I have a Galaxy Nexus that was stuck in a boot loop at the google logo. I tried using these instructions to reflash the device: http://forum.xda-developers.com/showthread.php?t=1394051
It got stuck at the beginning and stayed that way for about 30 minutes. After that i removed the battery and tried to start the device and now the attached image is on the screen no matter what i do.
Can anybody help me get this device working again?
Will adb recognize your device??
angelino0919 said:
Will adb recognize your device??
Click to expand...
Click to collapse
No, it does not recognize the device.
Can you boot into Fastboot mode? (Vol+, Vol-, Power)
silow said:
Can you boot into Fastboot mode? (Vol+, Vol-, Power)
Click to expand...
Click to collapse
I can't. I tried fast boot and odin mode but no matter what I do that image is displayed.
If you can't get into Fastboot or Download mode with the hardware buttons you're kinda screwed. You will likely have to order a USB JIG to force your phone into Download mode. So you can try to use ODIN to fix it. You can buy these USB JIGs off ebay.
I made a usb jig and tried to get to download mode but I cant. Is there any way to fix this?

Can't enter ODIN dl mode

I have a galaxy s2 and I cannot get the phone into ODIN download mode. When I plug in the USB, while holding the down and up volume button it goes into recovery mode A3 but no DL mode. I can't get a USB connection to the computer for the phone to be recognized so I was trying to get into ODIN DL mode to see if I can get a connection this way but no luck
josephh71 said:
I have a galaxy s2 and I cannot get the phone into ODIN download mode. When I plug in the USB, while holding the down and up volume button it goes into recovery mode A3 but no DL mode. I can't get a USB connection to the computer for the phone to be recognized so I was trying to get into ODIN DL mode to see if I can get a connection this way but no luck
Click to expand...
Click to collapse
Are you trying to recover from a bad flash? Did you already root your phone? Did your try to wipe cache/factory reset from recovery? Is your phone unable to boot?
No
I've never flashed the phone before, it's not rooted and there is only the built in recovery mode. I have factory reset once but its when I first got the phone.
josephh71 said:
I've never flashed the phone before, it's not rooted and there is only the built in recovery mode. I have factory reset once but its when I first got the phone.
Click to expand...
Click to collapse
Did you try turning off your phone, pulling out the battery for a couple of seconds and then, press power + vol(+) + vol(-) and release the power button when it vibrates once?
Yep
jonmassot said:
Did you try turning off your phone, pulling out the battery for a couple of seconds and then, press power + vol(+) + vol(-) and release the power button when it vibrates once?
Click to expand...
Click to collapse
Yes and it loads into android system recovery <3a>
josephh71 said:
Yes and it loads into android system recovery <3a>
Click to expand...
Click to collapse
Basically, with the SGH-T989D, pressing both volumes buttons at the same time while loading will bring you to the recovery, but it's not supposed to be the same with the SGH-T989... Did you tried booting while holding only 1 volume button, bottom or upper?
josephh71 said:
Yes and it loads into android system recovery <3a>
Click to expand...
Click to collapse
i am assuming you want your phone in download mode so you can flash through ODIN ....right?
what do you want to flash from ODIN?
Do you want to flash a custom ROM? or stock ROM?
will tell you how to put phone in download mode but you gotta answer above question so i can help u to the right direction.
???
Custom
sam.balia1012 said:
i am assuming you want your phone in download mode so you can flash through ODIN ....right?
what do you want to flash from ODIN?
Do you want to flash a custom ROM? or stock ROM?
will tell you how to put phone in download mode but you gotta answer above question so i can help u to the right direction.
???
Click to expand...
Click to collapse
I want to flash a custom rom and root the device as well
josephh71 said:
I want to flash a custom rom and root the device as well
Click to expand...
Click to collapse
1-use ODIN to flash cwm (clockwork mod) & root your phone First
2-after that u flash any custom ROM while in cwm.
How:
1- your pc has to have samsung usb drivers (one way to do that is to downlaod samsung Kies)
download to your pc these files:
“recovery-cmw-hercules.tar”
CWM-SuperSU-v0.87.zip
get them from here http://galaxys2root.com/t-mobile-galaxy-s2/how-to-root-icsgb-on-t-mobile-galaxy-s2-sgh-t989/
Now, to put phone in download mode: Turn phone off- take battery out Then put it back in- hold vol+/- down & plug usb cable in phone
screen will come on- move vol up -----> u in download mode. (at this stage only usb cable or you following steps can make this not work)
Start ODIN........u can see the rest from link above.
After phone is rooted and has cwm installed Now u can copy any ROM to scdard and flash it through cwm.
to put phone in cwm (recovery) same as above except Hold vol+/- & power button (no USB cable) samsung will show up on screen Let go of power button and keep holding vol+/- ----> now u are in recovery ....install your rom + gapps and reboot
Two importand thinhs: after rooting and installing cwm ------back up your current rom & make sure make sure you flash ROMS for your device (Hercules) only ....u flash a rom/kernel for another device YOU WILL brick your phone,
after the first time....its super easy
Hit thanks
jonmassot said:
Did you try turning off your phone, pulling out the battery for a couple of seconds and then, press power + vol(+) + vol(-) and release the power button when it vibrates once?
Click to expand...
Click to collapse
Pull the battery, plug the cable into the phone, Hold the up and down rockers, put the battery back into the phone and power it on while holding the rockers. A yellow screen with a warning will come up. Pressing the Up rocker will get to DL mode. Pressing down will reboot the phone. But unless your phone is connected to the computer/power, DL mode is difficult to get to. Hope that helps
when do you put the battery back in?

Cant get phone to enter download or recover mode

I bought a phone from ebay and when it arrived it still had old user info so i went to install stock restore firmware with odin but could not get phone to enter download or recover mode. luckily i had a usb jig and was able o use it to get to download mode and flash the phone now everything works but i still cant get to download or recover mode using the phone buttons. the usb jig still works to enter download mode. Does anyone know how to fix this problem. is their a way to boot to recovery mode from the main os
What buttons are you pushing to try to get into download mode?
metalfan78 said:
What buttons are you pushing to try to get into download mode?
Click to expand...
Click to collapse
power+volup+home
zaus1978 said:
power+volup+home
Click to expand...
Click to collapse
It is voldown+power+home.
Yep, volume up is for recovery
either way i cant get to download or recover mode useing the buttons i can get to download mode with my usb jig or boot in to it using Samsung GS3 ToolKit. Is their a way to boot into recovery mode
You can download quickboot from the market.
Thanks that works but i wonder why i cant boot using the button combo its just strange all the buttons are working. but i can get into recover mde now so that is good
That is strange, I say use Odin and go completely stock, no root, and see if it still acts the same. If so then it might be hardware related.

[Q] Galaxy T989 Black Screen/ Bad hard reset/ E: sig verification fail

i have a tmobile galaxy s2 sgh-t989. i did a hard reset on the phone and something went wrong. When it rebooted and powered on i now have a black screen and a no sync error in little box. the time, bluetooth, wifi all still work. My computer doesnt recognize the phone is plugged to usb, So using odin isn't working. the phone won't go into DOWNLOAD MODE. i have kies, samsung drivers all installed on pc. I have tried using a sd card and using .zip files to recover. "E: signature verification failed" error is all i keep getting when trying the sd card method. i believe the rom is stock, ANDROID SYS RECOVERY <3e> blue screen comes on when holding vol+/-. is my phone a brick or can it be fixed is my question. i dont want to keep wasting my time if this cant be fixed.
MoneyJohnnYinCLeveland said:
i have a tmobile galaxy s2 sgh-t989. i did a hard reset on the phone and something went wrong. When it rebooted and powered on i now have a black screen and a no sync error in little box. the time, bluetooth, wifi all still work. My computer doesnt recognize the phone is plugged to usb, So using odin isn't working. the phone won't go into DOWNLOAD MODE. i have kies, samsung drivers all installed on pc. I have tried using a sd card and using .zip files to recover. "E: signature verification failed" error is all i keep getting when trying the sd card method. i believe the rom is stock, ANDROID SYS RECOVERY <3e> blue screen comes on when holding vol+/-. is my phone a brick or can it be fixed is my question. i dont want to keep wasting my time if this cant be fixed.
Click to expand...
Click to collapse
You will not be able to flash anything in stock recovery. To get into download mode, unplug the battery, plug into computer with Odin opened, hold power and two volume buttons, insert battery. You can then flash stock ROM in Odin.
Sent from my SGH-T989
jrc2 said:
You will not be able to flash anything in stock recovery. To get into download mode, unplug the battery, plug into computer with Odin opened, hold power and two volume buttons, insert battery. You can then flash stock ROM in Odin.
Sent from my SGH-T989
Click to expand...
Click to collapse
i have tried every method on this site. phone just wont go to download mode for sh*t. all i get is the recovery menu
MoneyJohnnYinCLeveland said:
i have tried every method on this site. phone just wont go to download mode for ****. all i get is the recovery menu
Click to expand...
Click to collapse
Did you try what I just posted? If you can get into recovery, you have to be able to boot into download mode somehow.
Sent from my SGH-T989
jrc2 said:
Did you try what I just posted? If you can get into recovery, you have to be able to boot into download mode somehow.
Sent from my SGH-T989
Click to expand...
Click to collapse
yes sir. tried vol+/vol- + power and plugging usb into phone. also tried leaving cord in pc and phone with battery out, then putting it back in while holding vol buttons. i release power button after the little vibrate when first turning phone on. nothing still. i ordered a jig off ebay hoping it will get into download mode.
MoneyJohnnYinCLeveland said:
yes sir. tried vol+/vol- + power and plugging usb into phone. also tried leaving cord in pc and phone with battery out, then putting it back in while holding vol buttons. i release power button after the little vibrate when first turning phone on. nothing still. i ordered a jig off ebay hoping it will get into download mode.
Click to expand...
Click to collapse
The jig should work. I found that it works better to hold it in passed the vibration until you see the download mode screen. And it is plug USB into computer and phone without pushing any buttons and then hold the 3 button combo in. If you want and easy way to root and install custom recovery once you are all fixed up, just let me know and I'll send ya some instructions.
Have a good evening,
jrc2
jrc2 said:
The jig should work. I found that it works better to hold it in passed the vibration until you see the download mode screen. And it is plug USB into computer and phone without pushing any buttons and then hold the 3 button combo in. If you want and easy way to root and install custom recovery once you are all fixed up, just let me know and I'll send ya some instructions.
Have a good evening,
jrc2
Click to expand...
Click to collapse
thanks for the help. when i get the jig in a few days will post back
MoneyJohnnYinCLeveland said:
thanks for the help. when i get the jig in a few days will post back
Click to expand...
Click to collapse
OK, that sounds great.
Have a good night
jrc2
Sent from my SGH-T989
jrc2 said:
OK, that sounds great.
Have a good night
jrc2
Sent from my SGH-T989
Click to expand...
Click to collapse
Got jig dongle in mail today. took battery off for a minute, put it in then jig. nothing still. dont know whats wrong with this phone. just wont go to download mode
MoneyJohnnYinCLeveland said:
Got jig dongle in mail today. took battery off for a minute, put it in then jig. nothing still. dont know whats wrong with this phone. just wont go to download mode
Click to expand...
Click to collapse
Put the battery in and insert the jig maybe. Make sure it is charged.
Sent from my SGH-T989
jrc2 said:
Put the battery in and insert the jig maybe. Make sure it is charged.
Sent from my SGH-T989
Click to expand...
Click to collapse
yes nothing happening. when the phones battery is dying i do get a chance to hit battery usage button. it brings up a menu where i can change vpn, tehtering, etc menus. but tethering is not lit up as option. (not recognized) i can bluetooth, NFC transfer between 2 devices, i see all these options
Try this.
Unplug phone
Remove battery and wait 10 seconds
Plug phone into computer
Hold in three button combo
Insert battery
Keep holding 3 buttons until you see download mode.
Sent from my SGH-T989
---------- Post added at 01:05 PM ---------- Previous post was at 01:04 PM ----------
How to use jig
- Turn off your phone and pull out the battery for 2 seconds.
- Put the battery back in the device and don't turn it on.
- Plug the jig into the micro USB port on the phone.
- After about few seconds, your phone should boot up automatically and bring you straight into download mode.
- Unplug the jig.
- Connect your phone with USB cable to computer and then flash your phone via the program "odin".
Click to expand...
Click to collapse
From http://forum.xda-developers.com/galaxy-s2/general/ref-usb-jig-faq-frequently-questions-t1402286
Sent from my SGH-T989
Jig
jrc2 said:
Try this.
Unplug phone
Remove battery and wait 10 seconds
Plug phone into computer
Hold in three button combo
Insert battery
Keep holding 3 buttons until you see download mode.
Sent from my SGH-T989
From http://forum.xda-developers.com/galaxy-s2/general/ref-usb-jig-faq-frequently-questions-t1402286
Sent from my SGH-T989
Click to expand...
Click to collapse
when i hold all three buttons the phone doesnt go download mode. it just pulses until i let go of power button
MoneyJohnnYinCLeveland said:
when i hold all three buttons the phone doesnt go download mode. it just pulses until i let go of power button
Click to expand...
Click to collapse
i took out battery for 10 seconds. did what you said the phone starts and just resets if i dont let go of power button.
FWIW, you only have to push both volume buttons when plugging into the computer to get to download mode.
meekrawb said:
FWIW, you only have to push both volume buttons when plugging into the computer to get to download mode.
Click to expand...
Click to collapse
I was trying to trouble shoot since he said he had tried combos like that already. Idk why the jig didn't work when the phone boots, though. Would adb reboot download work without root?
Sent from my SGH-T989
jrc2 said:
I was trying to trouble shoot since he said he had tried combos like that already. Idk why the jig didn't work when the phone boots, though. Would adb reboot download work without root?
Sent from my SGH-T989
Click to expand...
Click to collapse
i tried the jig in my note 3. turned right into download mode. wont work on the s2. i have tried 3 button and 2 button combos. recovery mode when i plug cord in holding both vol+/-
MoneyJohnnYinCLeveland said:
i tried the jig in my note 3. turned right into download mode. wont work on the s2. i have tried 3 button and 2 button combos. recovery mode when i plug cord in holding both vol+/-
Click to expand...
Click to collapse
the phone hasnt been rooted. i believe it is stock. i have the android recovery <3e> blue wiriting in recovery top screen
MoneyJohnnYinCLeveland said:
the phone hasnt been rooted. i believe it is stock. i have the android recovery <3e> blue wiriting in recovery top screen
Click to expand...
Click to collapse
when the phone is on. the screen is black and i get 1 "unable to sync" popup, and a few "application installer is not responding" wait/ok options
MoneyJohnnYinCLeveland said:
when the phone is on. the screen is black and i get 1 "unable to sync" popup, and a few "application installer is not responding" wait/ok options
Click to expand...
Click to collapse
i can take out the battery and put it in the phone, phone does not power on unless i hit power button. if i have the phone plugged in to usb, powered off/ battery in, it powers on the phone, no buttons needed, but does not recognize the usb on pc. has had a new port put in the phone also, was told thats why phone wouldnt sync. had port replaced and still cant sync

Stuck at SAMSUNG LOGO

if you are stuck at samsung logo after flashing with odin
here's what you have to do:
1. While on Samsung logo. press power key + volume up and down + home button (all together)
2. When the screen is off. Press Power key + Volume Up + home button to enter recovery mode.
3. Wipe Data
4. Wipe Cache
5. Reboot to system
you should be fine right now ^^
cheers!
lexjay said:
if you are stuck at samsung logo after flashing with odin
here's what you have to do:
1. While on Samsung logo. press power key + volume up and down + home button (all together)
2. When the screen is off. Press Power key + Volume Up + home button to enter recovery mode.
3. Wipe Data
4. Wipe Cache
5. Reboot to system
you should be fine right now ^^
cheers!
Click to expand...
Click to collapse
I'm having that problem now. I followed your instructions and got to the recovery mode or "Odin Mode" and it's been saying it's downloading for about 10 min or so. Any idea on how long it should take ?
casual167 said:
I'm having that problem now. I followed your instructions and got to the recovery mode or "Odin Mode" and it's been saying it's downloading for about 10 min or so. Any idea on how long it should take ?
Click to expand...
Click to collapse
Actually I believe it's the download mode that I'm in. It doesn't seem to get to the recovery mode when I press the Volume up key and power button for some reason.. Am I doing something wrong
casual167 said:
Actually I believe it's the download mode that I'm in. It doesn't seem to get to the recovery mode when I press the Volume up key and power button for some reason.. Am I doing something wrong
Click to expand...
Click to collapse
Follow these instructions implicitly.
Hold POWER + VOL DOWN + HOME.
As soon as it restarts change to VOL UP while still holding the other buttons.
Do NOT let go of any of the buttons until recovery boots.
ashyx said:
Follow these instructions implicitly.
Hold POWER + VOL DOWN + HOME.
As soon as it restarts change to VOL UP while still holding the other buttons.
Do NOT let go of any of the buttons until recovery boots.
Click to expand...
Click to collapse
That's what I've been doing exactly but for some reason it just goes right back to the logo screen. I was able to get into the recovery mode one time out of 100 and I went through the process of factory reset but it didn't solve the problem. Now I can't get back into it. It's weird because I have no problem getting into the download mode pressing the volume down but volume up doesn't seem to work. Not sure why or what to do
I'd try reflashing stock recovery then try booting into it again.
If it flashes then you should be able to boot into it.
http://www.mediafire.com/?qyybs0m1yln443x
ashyx said:
I'd try reflashing stock recovery then try booting into it again.
If it flashes then you should be able to boot into it.
http://www.mediafire.com/?qyybs0m1yln443x
Click to expand...
Click to collapse
How exactly would I do that? I'm not to inclined when it comes to this stuff so any help you can give would be appreciated
Install Samsung usb drivers, put your tab into download mode, connect to pc, run Odin, load the file into the AP slot then click start.
http://forum.xda-developers.com/attachment.php?attachmentid=3109599&d=1420980613
i think i bricked mine...
These are the 2 screens i get whenever i try anything
joker616 said:
i think i bricked mine...
These are the 2 screens i get whenever i try anything
Click to expand...
Click to collapse
You haven't bricked anything, there could be any number of reasons why it won't boot past the logo.
Easiest way to resolve it would be to reinstall the stock rom.
The second image is download mode.
joker616 said:
i think i bricked mine...
These are the 2 screens i get whenever i try anything
Click to expand...
Click to collapse
That's the exact same situation I'm in. Every time I restart it I can't get passed that damn Samsung logo screen. I tried the whole flash with Odin process but I realized that when I connect the tablet to the computer, I get an "MTP Device Driver Failed" message so I'm assuming since the computer doesn't recognize it, even tried with KEIS and it doesn't, that I'm unable to complete the Odin job because that goes until 'Initialization' and stops there. Were you able to fix yours?
casual167 said:
That's the exact same situation I'm in. Every time I restart it I can't get passed that damn Samsung logo screen. I tried the whole flash with Odin process but I realized that when I connect the tablet to the computer, I get an "MTP Device Driver Failed" message so I'm assuming since the computer doesn't recognize it, even tried with KEIS and it doesn't, that I'm unable to complete the Odin job because that goes until 'Initialization' and stops there. Were you able to fix yours?
Click to expand...
Click to collapse
Are you saying you still can't get into recovery mode?
Also what is your device model?
ashyx said:
Are you saying you still can't get into recovery mode?
Also what is your device model?
Click to expand...
Click to collapse
No I can't. I've tried a thousand times in all different sequences of holding the three buttons and it just doesn't go. It's SM-T800. They screen shots on the first page is exactly what I get. Either the logo screen when trying to get into recovery or download mode which it has no problem going into.
casual167 said:
No I can't. I've tried a thousand times in all different sequences of holding the three buttons and it just doesn't go. It's SM-T800. They screen shots on the first page is exactly what I get. Either the logo screen when trying to get into recovery or download mode which it has no problem going into.
Click to expand...
Click to collapse
The two files below should boot you directly into recovery as soon as you start the tablet if you can flash them. Flash with Odin from the AP slot.
Make sure you put the device into DOWNLOAD mode first then connect your usb cable!
You can then do a factory reset and then try and flash the stock rom.
Stock recovery
Twrp recovery
.
ashyx said:
The two files below should boot you directly into recovery as soon as you start the tablet if you can flash them. Flash with Odin from the AP slot.
Make sure you put the device into DOWNLOAD mode first then connect your usb cable!
You can then do a factory reset and then try and flash the stock rom.
Stock recovery
Twrp recovery
.
Click to expand...
Click to collapse
Yeah I tried that too but when I connect the tablet to my comp, I get this 'Samsung Mobile MTP Device Failed' message so my comp doesn't even recognize the tablet. I even tried connecting with KEIS but that doesn't see it either because of that error. Idk if that's related to this issue that I'm having but I'm assuming that since the comp doesn't recognize the tablet because of that error, it won't finish the ODIN job. I get up to 'Initialization' and nothing after. I tried uninstalling and reinstalling the Samsung drivers and that didn't work either. Seems I can't catch a break here
casual167 said:
Yeah I tried that too but when I connect the tablet to my comp, I get this 'Samsung Mobile MTP Device Failed' message so my comp doesn't even recognize the tablet. I even tried connecting with KEIS but that doesn't see it either because of that error. Idk if that's related to this issue that I'm having but I'm assuming that since the comp doesn't recognize the tablet because of that error, it won't finish the ODIN job. I get up to 'Initialization' and nothing after. I tried uninstalling and reinstalling the Samsung drivers and that didn't work either. Seems I can't catch a break here
Click to expand...
Click to collapse
Mtp, kies and anything else is irrelevant, they are OS dependent.
Just put the tablet into download mode. Download mode works in boot loader mode. No need for the os.
ashyx said:
Mtp, kies and anything else is irrelevant, they are OS dependent.
Just put the tablet into download mode. Download mode works in boot loader mode. No need for the os.
Click to expand...
Click to collapse
Ok than Idk why it doesn't go passed the 'Initialization'. I tried multiple times and keep getting stuck on that
casual167 said:
Ok than Idk why it doesn't go passed the 'Initialization'. I tried multiple times and keep getting stuck on that
Click to expand...
Click to collapse
Ok we need to take this step by step as theres something amiss here.
DID YOU AT ANY POINT WHILE THE TABLET WAS WORKING ENABLE 'REACTIVATION LOCK'?
1. Ensure the Samsung drivers are installed (important) Samsung usb driver
2. Before connecting anything to the PC put the tablet in DOWNLOAD mode first.
3. Plug the USB cable into a USB 2 port
4. Wait for the 'ADDED' message (if you dont get this it wont work)
5. Load the tar file into the AP slot.
6. Click START
7. If it doesn't start to flash reboot the tablet directly back into DOWNLOAD mode without touching anything else then unplug and replug the USB cable back in.
8. If it still doesn't flash try ODIN 3.07 ODIN
9. Report back and post a screenshot (if it doesn't work).
ashyx said:
Ok we need to take this step by step as theres something amiss here.
DID YOU AT ANY POINT WHILE THE TABLET WAS WORKING ENABLE 'REACTIVATION LOCK'?
1. Ensure the Samsung drivers are installed (important) Samsung usb driver
2. Before connecting anything to the PC put the tablet in DOWNLOAD mode first.
3. Plug the USB cable into a USB 2 port
4. Wait for the 'ADDED' message (if you dont get this it wont work)
5. Load the tar file into the AP slot.
6. Click START
7. If it doesn't start to flash reboot the tablet directly back into DOWNLOAD mode without touching anything else then unplug and replug the USB cable back in.
8. If it still doesn't flash try ODIN 3.07 ODIN
9. Report back and post a screenshot (if it doesn't work).
Click to expand...
Click to collapse
I know for a fact that I never enabled the Reactivation Lock.. But you know, after literally days and hours including my entire weekend just searching the internet and trying every possible fix scenario that people have tried, I just gave in and sent it to Samsung this afternoon to have them fix it. Nothing I was doing seemed to work and I do believe I tried everything within my little knowledge to try. Let me ask you though, when I get it back in normal working order, would going through the steps to install the TWRP recovery and a ROM prevent me from being in this situation again or at least be able to actually fix it on my own?
If you dont mind tripping Knox and possibly warranty then I believe installing custom recovery is one of the best tools you can Install to a device.
It can get you back to a working state in minutes if you make a full backup.
It's a no brainer to install custom recovery if you intend to root and modify the device in any way.

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