Database Users

[PROB] Can't install recovery, Download mode (Write protection: Enable)

Hi folks,
Having searched the forums I couldn't find an answer.
The problem I'm getting is when I get into download mode. I see the normal green android icon but at the top there is a grey caption saying: Write protection: Enabled.
I've been trying to flash twrp custom recovery but odin tries to do it and at the end it tells me success:0 failed:0.
That's all strange enough as previosly I managed to root the s4 using chainfire's Autoroot.
Could anyone tell me why is this happening and how to jump over it and install TWRP recovery.
//edit
I didn't check before I rooted the device but now I can't access stock recovery.
Cheers.
Ps. the device is: rooted i9505 running XXUAMDC stock rom, network: Three UK.

Attached is a screenshot of what I mean.
Thank you.

Didn't the TWRP site suggest using GooManager to install if you're rooted? Maybe give that a shot.

My unbranded UK s4 also said write protection enabled however I've had no problem installing twrp recovery.
Flashed via odin after putting phone into download mode... Have twrp in pda and it's checked in the box next to it...
Sent from my GT-I9505 using xda premium

chalger said:
Hi folks,
Having searched the forums I couldn't find an answer.
The problem I'm getting is when I get into download mode. I see the normal green android icon but at the top there is a grey caption saying: Write protection: Enabled.
I've been trying to flash twrp custom recovery but odin tries to do it and at the end it tells me success:0 failed:0.
That's all strange enough as previosly I managed to root the s4 using chainfire's Autoroot.
Could anyone tell me why is this happening and how to jump over it and install TWRP recovery.
//edit
I didn't check before I rooted the device but now I can't access stock recovery.
Cheers.
Ps. the device is: rooted i9505 running stock rom, network: Three UK.
Click to expand...
Click to collapse
I have the same issue. I'm stock XXUAMDE with CF-ROOT.
I haven't tried to flash TWRP but I can't boot into stock recovery.
It says 'booting recovery' in blue but then just hangs.
Have you tried using Super SU app and unrooting?

Ok.
I tried using GOOmanager, it cannot find suitable recovery for my device (which is strange as you may find it through TWRP web page).
When I choose in GOO to reboot to recovery it actually gets me to stock recovery (I still can NOT get into recovery using power+home+UP)
When i try to flash TWRP using (newly discovered via GOO) stock recovery it looks like that:
There is a broken android icon (see 1st attached file) and the text
-reboot system now
-apply update via ADB
[.....]
# MANUAL MODE #
Applying Multi-CSC
Applied the CSC-Code : H3G (btw H3G is my carrier, three UK)
Successfully applied multi-CSC
when I choose the recovery file to flash I'm getting response that E:\signature verification failed
Again everything I've done with the phone was CFroot, that is it. No custom rom etc or other playing with it.
//edit
I have the same issue. I'm stock XXUAMDE with CF-ROOT.
I haven't tried to flash TWRP but I can't boot into stock recovery.
It says 'booting recovery' in blue but then just hangs.
Click to expand...
Click to collapse
I've got EXACTLY the same behaviour. I discovered GOO manager allowed me to boot into stock recovery.
Thanks for your interest.
chalger

If you're having problems check the thread here: http://forum.xda-developers.com/showthread.php?t=2266336
It's the same method I used to root my phone and flash TWRP. (I too have write protection enabled)

write protection enabled means nothing
I have the exact same thing written on mine.
I have CF-Auto-Rooted mine AND TWRP 2.5 placed on mine, both using ODIN method.
No issues at all - both work perfectly fine.

chalger said:
(I still can NOT get into recovery using power+home+UP)
Click to expand...
Click to collapse
Try using just the Vol Up+Power. Once the phone vibrates, let go of the power but keep holding the up key until you see something appear on the screen. That works on my non-rooted phone to get into recovery.

Hiya
Just for your information.
I've done factory reset, it preserved root access (which I found strange) and now I've managed to flash twrp recovery (which in my view is way too much touch sensitive )
Thanks for all the replies.

problem rooting i9505
chalger said:
Hiya
Just for your information.
I've done factory reset, it preserved root access (which I found strange) and now I've managed to flash twrp recovery (which in my view is way too much touch sensitive )
Thanks for all the replies.
Click to expand...
Click to collapse
Hi All,
Just got my galaxy s4 i9505 with baseband XXUAME2. Have been trying to root this using CFROOT via odin numerous times but each time it fails. The error message includes "write operation failed" and "No PIT partion".
I have downloaded the correct PIT file and tried again but the same problem again.
I have further tried to flash pre-rooted firmware and another stock firmware but again - nothing I do seems to work.
Have tried the factory reset as well but again does not work.
Have tried flashing using motochopper method but also does not work.
Was hoping if someone could kindly extend his/her expertise - I am completely clueless at this point..

Ok for those getting the following error using Odin,
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Removed!!
<ID:0/004> There is no PIT partition.
<OSM> All threads completed. (succeed 0 / failed 1)
I was getting the same errors whenever I tried to flash anything and couldn't figure out why. Now I seem to have sorted it.
Try this.
DO NOT HAVE ODIN OPEN YET
Stop KIES on your PC if it is on.
1) Put your phone into Download mode, (Home, Vol Down, Power at same time).
2) Connect your USB to PC/Laptop and phone.
3) Press UP on your phone.
4) now, open ODIN. <---only open AFTER your have pressed UP on your phone. COM and "Added" should be showing.
5) Flash what you need to flash.
(I noticed previously when I had Odin open, then pressed UP, it would show as "Added" and a Com would show, but I would ALWAYS get the Pit error and a Red FAIL)
I have now tried this method several times on the trot, flashed CWM with success, (where as it was always failing previously), and re-flashed other ROMS with success each time.
Hope this helps others.

Still failing to flash anything usin odin
artnada said:
Ok for those getting the following error using Odin,
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Removed!!
<ID:0/004> There is no PIT partition.
<OSM> All threads completed. (succeed 0 / failed 1)
I was getting the same errors whenever I tried to flash anything and couldn't figure out why. Now I seem to have sorted it.
Try this.
DO NOT HAVE ODIN OPEN YET
Stop KIES on your PC if it is on.
1) Put your phone into Download mode, (Home, Vol Down, Power at same time).
2) Connect your USB to PC/Laptop and phone.
3) Press UP on your phone.
4) now, open ODIN. <---only open AFTER your have pressed UP on your phone. COM and "Added" should be showing.
5) Flash what you need to flash.
(I noticed previously when I had Odin open, then pressed UP, it would show as "Added" and a Com would show, but I would ALWAYS get the Pit error and a Red FAIL)
I have now tried this method several times on the trot, flashed CWM with success, (where as it was always failing previously), and re-flashed other ROMS with success each time.
Hope this helps others.
Click to expand...
Click to collapse
Hi i have tried the above. Same problem persists.
I do not have Kies on my pc. Have tried steps listed above as is but still no luck.
need help

Anjamil said:
Hi i have tried the above. Same problem persists.
I do not have Kies on my pc. Have tried steps listed above as is but still no luck.
need help
Click to expand...
Click to collapse
Me too i have the same problem .. any other method to flash back to original fiemware ?
cheers
Indra

problem solved
I used odin 1.85 and original usb cable that came in the
box. Problem solved am now able to flash all roms

I'm having exxcactly the same problem, but i can't boot the phone, it's just stuck on s4 screen, can someone help?
Thanks in advance.

Thanks for this. That solved my issue.
artnada said:
Ok for those getting the following error using Odin,
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Removed!!
<ID:0/004> There is no PIT partition.
<OSM> All threads completed. (succeed 0 / failed 1)
I was getting the same errors whenever I tried to flash anything and couldn't figure out why. Now I seem to have sorted it.
Try this.
DO NOT HAVE ODIN OPEN YET
Stop KIES on your PC if it is on.
1) Put your phone into Download mode, (Home, Vol Down, Power at same time).
2) Connect your USB to PC/Laptop and phone.
3) Press UP on your phone.
4) now, open ODIN. <---only open AFTER your have pressed UP on your phone. COM and "Added" should be showing.
5) Flash what you need to flash.
(I noticed previously when I had Odin open, then pressed UP, it would show as "Added" and a Com would show, but I would ALWAYS get the Pit error and a Red FAIL)
I have now tried this method several times on the trot, flashed CWM with success, (where as it was always failing previously), and re-flashed other ROMS with success each time.
Hope this helps others.
Click to expand...
Click to collapse

First time i tried to install a custom recovery on my S4 I9505 LTE. With Odin.. It didn't work..
I knew about heimdall.. And i gave that a try. And it worked perfectly. The one thing that's a bit weird.. After it first worked through heimdall. I could flash any custom recovery through Odin. But I think you should give heimdall a try..
Here is a link to how to install CWM on the cyanogenmod wiki: wiki.cyanogenmod.org/w/Install_CM_for_jfltexx#Installing_a_custom_recovery_on_Galaxy_S4_.28International_LTE.29 (I can't post links yet. So i just removed the http)

i flashed modern , and, it is fail, what wrong
[/url][/IMG]
my phone have this entry : "write protection : enable"

on my phone is also 'write protected- enable' but odin and cwm work fine

[Q] Problems with updating bootloader / modem

edit:
I finally managed now to flash DBT NB4 with PIT..
Hello guys,
I have some problems with my N9005.
First problem:
I tried to update my bootloader, also modem witn Odin 3.09
BL: NA6
Modem: NA2
Tried to update bootloader to ND5, also tried modem to NC2. I used key combo to get into download mode.
Auto Reboot and F Reset Time ticked, nothing else. Tried one by one, first BL with BL tab, modem with CP tab
Nothing changed after reboot... still NA6 and NA2
I also used mobile odin, skips modem cuz of write protection. This also is readable in download mode.
Second problem:
After every reboot (normal, recovery, etc.) the time is reset, you have to config manually or let it grab frome time-servers.
Annoying...
Can anyone help me?

Can anyone help me?
I tried to flash N9005XXUENB7_N9005DBTENB2_N9005XXUENB1_HOME.tar.md5 with PDA tab now, with hidden.img it stopped with FAIL (size)
So I used the pit file for DBT and tried again, still FAIL! (Size)
Note 3 now starts only to download mode with firmware upgrade error warning...
edit:
I finally managed now to flash DBT NB4 with PIT..

Sometimes pit file is needed for certain firmware.
http://forum.xda-developers.com/showthread.php?t=2643109
When updating bootloader and modem, u have to shutdown phone completely before the 3 combos. And do it one by one at the correct tab.
Sent from somewhere under the sky, at the corner of this rounded earth.

Samsung Galaxy S5. Cant flash stock rom and Update it with kies.

The Samsung Galaxy S5 (SM-G900F) is stuck at the boot screen and keeps restarting. I cant go into recovery mode. I can only go into the download mode. I tried to flash it with odin and update it with kies. But none of it works.
At the download mode screen it says:
ODIN : flash read failure
Error: There is no pit binary
Odin screen:
<ID:0/013> Odin engine v(ID:3.1101)..
<ID:0/013> File analysis..
<ID:0/013> SetupConnection..
<ID:0/013> Initialzation..
<ID:0/013> Get PIT for mapping..
<ID:0/013>
<ID:0/013> There is no PIT partition.
<OSM> All threads completed. (succeed 0 / failed 1)
Any help will be appreciated

Got your back.
Hey man just make sure you closed odin completely.
1. Start Kies
2.Click Tools-> Firmware upgrade and initilazation
3.Type in model of your phone for example sm-g900i which is my Australian S5 then it will ask you for your SN which is a 16 digit code serial number located on the back of your phone when you remove the battery.
Then just follow steps until it asks YOUR phone to be connected... DONT connect it yet...first put it in download mode; phone turned off; press home but, power but, and vol down bot at same time then press vol up key to enter download mode.
Connect phone; then just wait 1 hour and voila you got your phome with latest stock firmware.
Please reply to us if this worked for you as this can help new users to determine what to do.
Cheers
Sorry but English is not my first language, hope i made myself clear.
If there is anything else i can do to assist please let me know.:laugh:

Which Kies works with the S5? Because neither seem to be working
I'm having pretty much the same problem, had a bad flash and can't boot into recovery or get it detected in Kies
And I can't flash stock Marshmallow or Lollipop till I finish downloading them
Going through firmware upgrade and installation option and putting in the model just causes Kies to freeze using either version

WalkableBuffalo said:
Which Kies works with the S5? Because neither seem to be working
I'm having pretty much the same problem, had a bad flash and can't boot into recovery or get it detected in Kies
And I can't flash stock Marshmallow or Lollipop till I finish downloading them
Going through firmware upgrade and installation option and putting in the model just causes Kies to freeze using either version
Click to expand...
Click to collapse
Kies will automaticlly download the correct atock fw.....just use Kies lite versiom which is the one i used a couple of days ago and had exactly the same problem as you i actually had a corrupter pit file so there was no partition being found...again install and use lite kies for samsung then just dlow the steps ut should automatically download the firmware and install it into samsung at the same time you shpuld not remove the cable whatsoever during download and installation and actually make sure yu have the drivers for samsung installed and that the usb cable you are using is original....hope it works if you need a detailed guide with instalation steps let me know or heck i cpuld even help out with a video just let me know.
Hope you get it sorted and if you do please let us all know so in the furute people can see the answer.
Cheers.

It's alright I fixed it now, still couldn't get Kies to work
I flashed the latest version of Lollipop (no carrier) to the phone, which initially sent it into a bootloop. But that enabled recovery again so I did a data and cache wipe, flashed the same ROM from ODIN again and it worked

G950f - After TWRP stuck on logo, no recovery, odin says 'no PIT patrition'.. help!

Hi all, i've also posted this on sammobile but have had little response. I installed TWRP on my S8 (G950f) and when it rebooted got stuck on the logo screen. I cannot enter recovery mode, only download mode. I've tried flashing with the latest Odin and it fails at the start with error DeviceInfo. So i installed an older version of Odin and now receive the error 'Set PIT file'. I cannot find a PIT file online for the G950f and upon reading it seems this is taken from the CSC file when 'repartition' is selected. I've done this to no avail, still 'Set PIT File' is displayed. I'm certain that the firmware is correct as it's been used before with success. For some reason this TWRP seems to have effed things up. I'm close to putting the phone on Ebay and never touching samsung again
This is my Odin log:
ID:0/005> Added!!
<ID:0/005> Odin engine v(ID:3.1100)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Initialzation..
<ID:0/005>
<ID:0/005> Set PIT file..
<ID:0/005> DO NOT TURN OFF TARGET!!
<ID:0/005> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/005> Removed!!
This is my Downloading Page text:
ODIN MODE
DOWNLOAD SPEED: FAST
PRODUCT NAME: SM-G950F
CURRENT BINARY: CUSTOM
SYSTEM STATUS: Official
FRP LOCK: OFF
OEM LOCK: OFF
Secure Download: Enabled
CCIC = S2MM005 hw: 6 boot: 7 main:3C
WARRANTY VOID: 1 (0x030c)
RP SWREV: B:1 K:1 S:1
DID = 02b50c50a9c2
EVT 1.1
LOT_ID = NBV6P
CHIP_ID = 02b50c50a9c2
nASV_Table_Version: 8
nASV_Group_CPUCL0: 9
nASV_Group_CPUCL1: 8
nASV_Group_G30: 3
nASV_Group_MIF: 9
nASV_Group_INT: 9
nASV_Group_CAM_DISP: 9
nASV_Group_CP: 9
nASV_Group_PMIC: 0
nASV_Group_PMIC_CP: 0
PMIC_ID = 2(e4)
LPDDR4 manufacturer = Samsung
LPDDR4 process ver = D18
LPDDR4 size = 4gb

Have you tried https://forum.xda-developers.com/galaxy-s8/help/stuck-bootloop-flashing-aqg5-fix-t3636857 ?

Hi, i've downloaded the file mentioned but it's a zip file and there's no BL file contained within it. I can't install via recovery as my phone wont enter recovery.

holidayaddict1 said:
Hi, i've downloaded the file mentioned but it's a zip file and there's no BL file contained within it. I can't install via recovery as my phone wont enter recovery.
Click to expand...
Click to collapse
Download the BL from https://www.sammobile.com/devices/ or using https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647

OK I've gotten somewhere (i hope). Followed your suggestion and after repeatedly pressing the Start button in ODIN have managed (somehow) to get into TWRP. However when i click 'install' the 'internal memory' displays as 0 with no option to select it.
Where do i go from here? Looks as if the internal storage is corrupt

The pit file is located in the CSC_OXM_G950FOXM1... file. Open it with winrar or 7zip and extract it.

Sjant said:
The pit file is located in the CSC_OXM_G950FOXM1... file. Open it with winrar or 7zip and extract it.
Click to expand...
Click to collapse
Do i need to exit TWRP then? I feel like i'd gotten somewhere

holidayaddict1 said:
Do i need to exit TWRP then? I feel like i'd gotten somewhere
Click to expand...
Click to collapse
Yes, you need to use Odin, or alternatively Smart Switch.

Sjant said:
Yes, you need to use Odin, or alternatively Smart Switch.
Click to expand...
Click to collapse
I've (kinda) managed to sort it!
Looked online and downloaded the files for AQF7 (just the BL and CP files) and whilst in download mode clicked start, held the 3 download buttons down again and hammered the start button in odin.. that made it boot into TWRP. However this just proved there was no partition there as the internal memory read zero.
So i downloaded the firmware for my device (XEU) and opened the CSC file with 7-zip and took out the .PIT file then in ODIN I JUST added the .PIT file and BL files. Pressed start and it worked but still only booted to the logo screen.
Next i added the AP file in ODIN and flashed that. This now went without a problem as the .PIT file had done its job repartitioning the phone.. The phone then restarted and booted to the welcome screen.
Some oddities which i don't understand are that in my Settings menu i now have an option 'T roaming' which shouldn't be there. and also a service provider option for 'KT twophone' whoever that is.
Confusing as i selected my countries (UK) XEU firmware.
My phone says 'international' on the boxes label so whether it's different firmware i'm not sure (couldn't find an international firmware on sam mobile).
*Edit..
I discovered that the additional options in the settings menu were due to me not flashing the CSC file so i reflashed all files at once (ensuring that odin had been reset first) and everythings back to normal.
Interestingly i wonder if i flashed a USA CSC file, would it give me access to the additional content available through the samsung USA store - they seem to have more AOD's, addons etc

Well Derr... because i discovered that android pay didn't work i felt like i had no option but to install TWRP... tried it, followed the instructions perfectly and it failed on DeviceInfo so now i'm back to the beginning.. stuck at the galaxy logo screen ( getting fed up of this phone now

holidayaddict1 said:
Well Derr... because i discovered that android pay didn't work i felt like i had no option but to install TWRP... tried it, followed the instructions perfectly and it failed on DeviceInfo so now i'm back to the beginning.. stuck at the galaxy logo screen ( getting fed up of this phone now
Click to expand...
Click to collapse
It got worse, however i've fixed it. I kept getting stuck in a boot loop despite having a successful flash. I just happened to check the files being flashed and realised that the BL file was the AQF7 bootloader and the other files were from my countries firmware. so i reflashed just the BL file for my country and the phone has now started
It looks as though flashing with TWRP won't work on my device for some reason as it seems to delete or corrupt the PIT. It's then a pain to get it all back working again.
Any other options to install TWRP?
Thanks

holidayaddict1 said:
I've (kinda) managed to sort it!
Looked online and downloaded the files for AQF7 (just the BL and CP files) and whilst in download mode clicked start, held the 3 download buttons down again and hammered the start button in odin.. that made it boot into TWRP. However this just proved there was no partition there as the internal memory read zero.
So i downloaded the firmware for my device (XEU) and opened the CSC file with 7-zip and took out the .PIT file then in ODIN I JUST added the .PIT file and BL files. Pressed start and it worked but still only booted to the logo screen.
Next i added the AP file in ODIN and flashed that. This now went without a problem as the .PIT file had done its job repartitioning the phone.. The phone then restarted and booted to the welcome screen.
Some oddities which i don't understand are that in my Settings menu i now have an option 'T roaming' which shouldn't be there. and also a service provider option for 'KT twophone' whoever that is.
Confusing as i selected my countries (UK) XEU firmware.
My phone says 'international' on the boxes label so whether it's different firmware i'm not sure (couldn't find an international firmware on sam mobile).
*Edit..
I discovered that the additional options in the settings menu were due to me not flashing the CSC file so i reflashed all files at once (ensuring that odin had been reset first) and everythings back to normal.
Interestingly i wonder if i flashed a USA CSC file, would it give me access to the additional content available through the samsung USA store - they seem to have more AOD's, addons etc
Click to expand...
Click to collapse
Hey mate. I am in the exact same boat as you, I am new to this and need some help. Where did you get your files, could you link them to me please? I don't know what I am meant to be doing and my back up didn't work properly so I can't even just go back to stock

Need help to install custom ROM

I know that the Samsung Grand 2 (SM-G7102). But I need help to flash custom ROM on a phone. This phone is still using stock ROM
If I remembered correctly, the step is :
Enable USB debugging mode -> done
Download odin -> done v 3.09
Install Samsung Driver -> done
Use USB cable that transfer data -> done, verified it can transfer data from/to computer
Get flashable TWRP -> done : https://forum.xda-developers.com/t/...y-grand-2-sm-g7102-unofficial-updated.3778414
Go to download mode and flash TWRP file.
On step 6, I got an error like below :
<ID:0/006> twrp 3.2.1.0.img
<ID:0/006> NAND Write Start!!
<ID:0/006> FAIL!
<ID:0/006>
<ID:0/006> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Tried a few times with different port & different USB cables, still got the same error as above.

ayambakargoreng said:
I know that the Samsung Grand 2 (SM-G7102). But I need help to flash custom ROM on a phone. This phone is still using stock ROM
If I remembered correctly, the step is :
Enable USB debugging mode -> done
Download odin -> done v 3.09
Install Samsung Driver -> done
Use USB cable that transfer data -> done, verified it can transfer data from/to computer
Get flashable TWRP -> done : https://forum.xda-developers.com/t/...y-grand-2-sm-g7102-unofficial-updated.3778414
Go to download mode and flash TWRP file.
On step 6, I got an error like below :
<ID:0/006> twrp 3.2.1.0.img
<ID:0/006> NAND Write Start!!
<ID:0/006> FAIL!
<ID:0/006>
<ID:0/006> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Tried a few times with different port & different USB cables, still got the same error as above.
Click to expand...
Click to collapse
try installing twrp img from twrp app

Whether you are looking to flash a custom ROM, or root your device, TWRP recovery helps a lot. Today, the latest version of TWRP recovery for Galaxy Grand 2 was released, which we’re sharing with you here along with installation guide.
With Galaxy Grand 2 TWRP recovery, you also gain the ability to create full Nandroid backup of the device, which can be sued to retore the device back to current condition, even if you flash a wrong firmware or ROM on it.
Without a doubt, TWRP is an incredible tool, and completely worth it even if you have to break warranty of your device for it, which it does.
KNOX gets tripped when you install TWRP, so know that you won’t be able to use enterprise apps that require KNOX, mostly the apps from your own company where you may be working.
Downloads
TWRP Recovery for Samsung Galaxy Grand 2: — Link | File: TWRP_ms01lte-beta2.tar (9.37 MB)
Odin PC software — Link | File: Odin3_v3.10.6.zip (1.6 MB)
→ Check the official downloads page here for the latest version of Galaxy Grand 2 TWRP available at the moment.
Supported devices
SAMSUNG GALAXY GRAND 2, model no. SM-7105
Don’t try this on Galaxy Grand 2 Duos, whose model no. is SM-7102
Don’t try on any other device whatsoever whose model no. is different than the one provided above!
Important: Check your device’s model no. on its packaging box, or in Settings > About device.
Warning: Warranty may be void of your device if you follow the procedures given on this page. You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components. Also, this trips KNOX, meaning KNOX would stop working on your device, and thus you won’t be able to Samsung Pay, or install enterprise Apps on your device at Office.
Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files. Sometimes, Odin installation may delete everything on your device!
Step-by-step Guide
Step 1. Download Odin and TWRP recovery file from above.
Step 2. Install Galaxy Grand 2 driver (method 1 there!) first of all. Double click the .exe file of drivers to begin installation. (Not required if you have already done this.)
Step 3. Extract the Odin file. You should get this file, Odin3 v3.10.6.exe (other files could be hidden, hence not visible).
Disconnect your Galaxy Grand 2 from PC if it is connected.
Step 5. Boot Galaxy Grand 2 into download mode:
Power off your Galaxy Grand 2. Wait 6-7 seconds after screen goes off.
Press and hold the three buttons Power + Home + Volume down together until you see warning screen.
Press Volume Up to continue to download mode.
Step 6. Double click on extracted file of Odin, Odin3 v3.10.6.exe, to open the Odin window, as shown below. Be careful with Odin, and do just as said to prevent problems.
Step 7. Connect your Galaxy Grand 2 to PC now using USB cable. Odin should recognize your Galaxy Grand 2. It’s a must. When it recognizes, you will see Added!! message appearing in the Log box in bottom left, and the first box under ID:COM will also show a no. and turn its background blue. Look at the pic below.
You cannot proceed until you get the Added!! message, which confirms that Odin has recognized your device.
If you don’t get Added!! message, you need to install/re-install drivers again, and use the original cable that came with the device. Mostly, drivers are the problem (look at step 2 above).
You can try different USB ports on your PC too, btw.
Step 8. Load the TWRP recovery file into Odin. For this, click the AP button on Odin and the select the kernel’s file you downloaded above.
Step 9. Make sure Re-partition checkbox is NOT selected, under the Options tab. Don’t use PIT tab either. Go back to Log tab btw, it will show the progress when you hit start button in next step.
Step 10. Click the Start button on Odin now to start flashing the TWRP recovery on your Galaxy Grand 2. Wait till installation is finished, after which your Galaxy Grand 2 will reboot automatically. You’ll get PASS message as show below upon successful installation from Odin.
If Odin gets stuck at setup connection, then you need to do this all again. Disconnect your device, close Odin, boot device into download mode again, open Odin, and then select the file and flash it again as said above.
If you get FAIL in the top left box, then also you need to flash the file again as stated just above.
→ That’s it. Enjoy TWRP recovery on your Galaxy Grand 2!
Root Galaxy Grand 2
Now, that you have the TWRP recovery, flash the SuperSU file now to see if you gain root access.
If you need any help with this, let us know via comments below and we will try our best to help you out.
[NOTE- this is not my own thread.Copied from ( https://nerdschalk.com/samsung-galaxy-grand-2-twrp-recovery-v2-8-7-0-downloads-and-guide/ )