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[Please help] Root for Samsung J8

[Please help] Root for Samsung J8

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ahmedeissa
ahmedeissa
ahmedeissa
Enthusiastic Member
11
03-11-2018, 07:56 PM
#1



Hello!
I need a root for Samsung J8 J810F  Android Oreo 8.0.0 build # R16NW.J810FJXU1ARG2
I can't find OMU unlock option in developer options. I tried many root programs and none of them worked.  Please help me out. Thank you so much!
X3non
X3non
X3non
Recognized Contributor
22,062
05-11-2018, 10:00 AM
#2
(03-11-2018, 07:56 PM)ahmedeissa Hello!
I need a root for Samsung J8 J810F  Android Oreo 8.0.0 build # R16NW.J810FJXU1ARG2
I can't find OMU unlock option in developer options. I tried many root programs and none of them worked.  Please help me out. Thank you so much!

did you try using magisk method at https://www.hovatek.com/forum/thread-21427.html ?
ahmedeissa
ahmedeissa
ahmedeissa
Enthusiastic Member
11
06-11-2018, 12:29 AM
#3
(05-11-2018, 10:00 AM)X3non
(03-11-2018, 07:56 PM)ahmedeissa Hello!
I need a root for Samsung J8 J810F  Android Oreo 8.0.0 build # R16NW.J810FJXU1ARG2
I can't find OMU unlock option in developer options. I tried many root programs and none of them worked.  Please help me out. Thank you so much!

did you try using magisk method at https://www.hovatek.com/forum/thread-21427.html ?

I tried this with an infinix device but it isn't working with this samsung device.
How do I get the boot.img of my device using miracle box or something else?
This post was last modified: 06-11-2018, 04:17 AM by ahmedeissa. Edit Reason: boot.img
X3non
X3non
X3non
Recognized Contributor
22,062
06-11-2018, 09:51 AM
#4
(06-11-2018, 12:29 AM)ahmedeissa I tried this with an infinix device but it isn't working with this samsung device.
How do I get the boot.img of my device using miracle box or something else?

that will depend, is you device an original or clone samsung?
what's the chipset?
ahmedeissa
ahmedeissa
ahmedeissa
Enthusiastic Member
11
06-11-2018, 02:33 PM
#5



(06-11-2018, 09:51 AM)X3non
(06-11-2018, 12:29 AM)ahmedeissa I tried this with an infinix device but it isn't working with this samsung device.
How do I get the boot.img of my device using miracle box or something else?

that will depend, is you device an original or clone samsung?
what's the chipset?

it's an original samsung
chipset is Qualcomm
freshtyt
freshtyt
freshtyt
Senior Member
2,949
06-11-2018, 07:17 PM
#6
(06-11-2018, 02:33 PM)ahmedeissa it's an original samsung
chipset is Qualcomm

Search for and download stock rom for your model @ https://samsung-firmware.org
You can extract boot.img from the ROM
ahmedeissa
ahmedeissa
ahmedeissa
Enthusiastic Member
11
07-11-2018, 03:10 AM
#7
(06-11-2018, 07:17 PM)freshtyt
(06-11-2018, 02:33 PM)ahmedeissa it's an original samsung
chipset is Qualcomm

Search for and download stock rom for your model @ https://samsung-firmware.org
You can extract boot.img from the ROM


I tried so many times and downloaded a variety of ROMs that are about 10 gigabytes big.. all ROMs have 4 files and the big file that's about 2 gigabytes would have what you see in the photo here.. when I unzip  the boot.img.lz4 it gives me data error: boot.img 

When i try to patch the file that you see in the photo using magisk manager it says installation failed.

Now I need boot.img patched for my Samsung J810F  Android Oreo 8.0.0 build # R16NW.J810FJXU1ARG2.
Attached Files
.jpg
1.jpg
Size: 21.7 KB / Downloads: 5
.jpg
2.jpg
Size: 56.06 KB / Downloads: 11
X3non
X3non
X3non
Recognized Contributor
22,062
07-11-2018, 10:21 AM
#8
(07-11-2018, 03:10 AM)ahmedeissa I tried so many times and downloaded a variety of ROMs that are about 10 gigabytes big.. all ROMs have 4 files and the big file that's about 2 gigabytes would have what you see in the photo here.. when I unzip  the boot.img.lz4 it gives me data error: boot.img 

When i try to patch the file that you see in the photo using magisk manager it says installation failed.

Now I need boot.img patched for my Samsung J810F  Android Oreo 8.0.0 build # R16NW.J810FJXU1ARG2.

The ROM in the pictures looks like OTA, you need Odin flashable firmware
Did you download that firmware from that Samsung-firmware website?
ahmedeissa
ahmedeissa
ahmedeissa
Enthusiastic Member
11
07-11-2018, 07:31 PM
#9
(07-11-2018, 10:21 AM)X3non
(07-11-2018, 03:10 AM)ahmedeissa I tried so many times and downloaded a variety of ROMs that are about 10 gigabytes big.. all ROMs have 4 files and the big file that's about 2 gigabytes would have what you see in the photo here.. when I unzip  the boot.img.lz4 it gives me data error: boot.img 

When i try to patch the file that you see in the photo using magisk manager it says installation failed.

Now I need boot.img patched for my Samsung J810F  Android Oreo 8.0.0 build # R16NW.J810FJXU1ARG2.

The ROM in the pictures looks like OTA, you need Odin flashable firmware
Did you download that firmware from that Samsung-firmware website?
I downloaded the last ROM in the photo from Samsung-firmware and it's not different from the ones I tried..  and once I extract boot.img it gives me the same error as before and when I try to patch boot.img using magisk it says installation error
Attached Files
.jpg
11.jpg
Size: 53.49 KB / Downloads: 2
.jpg
22.jpg
Size: 73.65 KB / Downloads: 2
.jpg
44.jpg
Size: 37.67 KB / Downloads: 1
X3non
X3non
X3non
Recognized Contributor
22,062
08-11-2018, 01:34 PM
#10



(07-11-2018, 07:31 PM)ahmedeissa I downloaded the last ROM in the photo from Samsung-firmware and it's not different from the ones I tried..  and once I extract boot.img it gives me the same error as before and when I try to patch boot.img using magisk it says installation error

See this error https://www.hovatek.com/forum/attachment.php?aid=5790
That's the error you got when trying to extract boot.img.lz4

You need to remove the extra data at the end of the file using hex editor. There's a link to hex editor in the thread at https://www.hovatek.com/forum/thread-117.html

The difficult part is you'll have to keep removing small chunks till you finally extract without an error


Note that If you remove more than necessary you'll get a different error, e.g 'unexpected end of file'


PS: if you have a PC running Ubuntu, you should be able to extract the file without needing to remove the extra data
This post was last modified: 08-11-2018, 01:36 PM by X3non.
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