D2-721 Tablet Customization - Hardware Hacking General

(I hope this is the right forum, if not please direct me to the right place as I was really unsure where to go since this device does not have it's own forum)
Diablotek 2 Tablet D2-721
Hi, I recently got a D2 tablet from Micro Center. I know it is a cheap tablet and I am not expecting great things, I just want to be able to customize it a touch so that things run a bit smoother.
I have already rooted the device, removed bloatware and installed Google Play, so I have things going a bit. I was just wondering if anyone knew of some custom ROMs for this device and/or a way to change the resolution/screen density. I have found some places for these things but only for the slightly older models that are running ICS (not JB) and have slightly different hardware specs, so I know it can be done I just cannot find any for the newer versions.
Any help is greatly appreciated and many thanks in advance!
Model Number - D2-721
Android Version - 4.1.1
Kernel Version - 3.0.36+
[email protected] #89
Fri Jan 11 11:46:07 CST 2013
Build Number - RK292X_ANDROID4.1.1-SDK-
v1.00.00
rk2928sdk-eng 4.1.1 JRO03H
20130111.111516 release-keys
[Edit] Also, does anyone know how to reboot this device into a Recovery Mode.

Did you try < adb reboot recovery syntax > ?

No, I have not but thank you for the information I will get around to doing that and let you.
Many thanks!

Device is not being found, but the computer does recognize it when I plug it in and My Computer will show it if I Turn on USB Storage.
The recovery command returns the message "error" device not found"
The device command returns a list with nothing showing up.
Any ideas? I have found a couple of ROM's but I need to be able to flash a Recovery mod and/or get into recovery to do anything. Trying to boot into recovery through any app just sends the device into the Android error logo upon boot and I cannot do anything.

Also, does anyone know how I would go about changing the screen resolution and/or density? Or perhaps can point me to some material that can show me how to do this?
I still need to get this tablet into recovery and find a custom ROM for it but most of my problems would be alleviated by adjusting my screen.

Well, I used the LCD app to adjust the density. It is more of a workaround than a fix but it will do for now.
Now, about getting this thing to boot into some sort of Recovery. It seems like this might be tied to the boot loader? Is anyone aware of a bootloader I could flash for this? Or can this be adjusted by modifying a system file? Or am I way off base and need to go about completely differently?

Well, the LCD app put the device into a boot loop and without a way to get into a recovery mode I am at a complete loss.
All the boot loop fixes I found require booting into recovery mode. ADB will not recognize the device while in a boot loop and neither will any other utility that I have found. Even the manufacturer's utility for flashing the stock firmware will not recognize the device in a boot loop.
Does anyone, anyone, have any idea of what my options here are? I have been searching and digging through forums for hours but to no avail. Any help is greatly appreciated, thank you.

Deleted, somehow this got posted on the wrong topic. Sorry for the inconvenience.

same problem
Hey, dont feel bad, Im in the same boat. I dont understand how the D2-721 doesn't have a volume -/+ keys, Ive probably skimmed through 5 different forums, spending about 1 1/2 hrs on each one, just reading. Trying to find out how to install custom recover and root on both my d2 pads, I have the 721 and 912, with no luck, the root script for the 721 wont even recognize the tablet, but the debug is working. ugh

S1lent Echoes said:
(I hope this is the right forum, if not please direct me to the right place as I was really unsure where to go since this device does not have it's own forum)
Diablotek 2 Tablet D2-721
Hi, I recently got a D2 tablet from Micro Center. I know it is a cheap tablet and I am not expecting great things, I just want to be able to customize it a touch so that things run a bit smoother.
I have already rooted the device, removed bloatware and installed Google Play, so I have things going a bit. I was just wondering if anyone knew of some custom ROMs for this device and/or a way to change the resolution/screen density. I have found some places for these things but only for the slightly older models that are running ICS (not JB) and have slightly different hardware specs, so I know it can be done I just cannot find any for the newer versions.
Any help is greatly appreciated and many thanks in advance!
Model Number - D2-721
Android Version - 4.1.1
Kernel Version - 3.0.36+
[email protected] #89
Fri Jan 11 11:46:07 CST 2013
Build Number - RK292X_ANDROID4.1.1-SDK-
v1.00.00
rk2928sdk-eng 4.1.1 JRO03H
20130111.111516 release-keys
[Edit] Also, does anyone know how to reboot this device into a Recovery Mode.
Click to expand...
Click to collapse
i just picked up this tablet...and finally figured out how to get play store on it....and...now i am too wondering how to install a custom recovery.
I have an app called EzRecovery on my s3 that falshes recoverys, but that says its for the s3...guessing it wont work on this tablet

Yeah, I searched far and wide but this just isn't a popular tablet so there isn't a whole lot of customizations for it. The few that I did find were for the slightly older ones which would not work for this one. I was able to root and install Google Play but I never could find a custom ROM for it and I never could get a recovery mode for it.
Be VERY wary because without a custom recovery it is easier to brick this tablet than most Android devices. Which is exactly what happened to me. I took it back to the store and got the next tier up which was +$50 more, a Lenovo tablet. Heed my advice and be careful, good luck to you both.

how
S1lent Echoes said:
Yeah, I searched far and wide but this just isn't a popular tablet so there isn't a whole lot of customizations for it. The few that I did find were for the slightly older ones which would not work for this one. I was able to root and install Google Play but I never could find a custom ROM for it and I never could get a recovery mode for it.
Be VERY wary because without a custom recovery it is easier to brick this tablet than most Android devices. Which is exactly what happened to me. I took it back to the store and got the next tier up which was +$50 more, a Lenovo tablet. Heed my advice and be careful, good luck to you both.
Click to expand...
Click to collapse
How did u root and install Google play?

Related

Porting from our gb'd Continuums

how comparable is 2.3.1 and 2.3.3 and how similar would the cwm be? I ask because I have a cheap dopo md-702 tablet that I would like to try working with. It has 2.3.1 and I was wondering how to get cwm to work with the tablet. It has a rockchip rk2918 so any ideas on where to start digging?
jaycush said:
how comparable is 2.3.1 and 2.3.3 and how similar would the cwm be? I ask because I have a cheap dopo md-702 tablet that I would like to try working with. It has 2.3.1 and I was wondering how to get cwm to work with the tablet. It has a rockchip rk2918 so any ideas on where to start digging?
Click to expand...
Click to collapse
Most cheap tablets cannot have cwm due to the lack of recovery menu. Cheap tablets are already rooted. Just install superuser and do whatever you want with. But once again. Due to lack of recovery you have to be careful with what you do.
XjokiX7 said:
Most cheap tablets cannot have cwm due to the lack of recovery menu. Cheap tablets are already rooted. Just install superuser and do whatever you want with. But once again. Due to lack of recovery you have to be careful with what you do.
Click to expand...
Click to collapse
In a very interesting sort of way the tablet has a recovery mode but it takes multiple steps to get to it. The long and short I used quick boot app to boot to recovery (which looked similar to a download mode) and then had to try different key presses to get into the actual recovery mode. I can run an update.zip from the menu but nothing else. It looks so similar to what the modded cwm is for our phones that I wonder if there was a way to look at the codes and compare. Also note worthy after I used Titanium Backup to unistall the phone (bad idea) I had to hit the reset button to see if I could start it back up, and it booted back to just the basic apps but still had the google play app (this tablet did not come with google play originally). There are just so many little nuances that I'm not sure what is going on with this tablet. I need to have some time to connect it to my PC so I can see if there is a way to look at the tablet through the computer similar to what I used to do with my windows phone.
There is also an upgraded model of the tablet that has 4.0, with a 1.2Ghz instead of 1Ghz processor. Is the OS (android 4.0) a part of the firmware? If I have the firmware from the newer model what are the chances it would work with the older model?
I want to copy this post over to the tablet thread and hopefully get some hits over there.
jaycush said:
In a very interesting sort of way the tablet has a recovery mode but it takes multiple steps to get to it. The long and short I used quick boot app to boot to recovery (which looked similar to a download mode) and then had to try different key presses to get into the actual recovery mode. I can run an update.zip from the menu but nothing else. It looks so similar to what the modded cwm is for our phones that I wonder if there was a way to look at the codes and compare. Also note worthy after I used Titanium Backup to unistall the phone (bad idea) I had to hit the reset button to see if I could start it back up, and it booted back to just the basic apps but still had the google play app (this tablet did not come with google play originally). There are just so many little nuances that I'm not sure what is going on with this tablet. I need to have some time to connect it to my PC so I can see if there is a way to look at the tablet through the computer similar to what I used to do with my windows phone.
There is also an upgraded model of the tablet that has 4.0, with a 1.2Ghz instead of 1Ghz processor. Is the OS (android 4.0) a part of the firmware? If I have the firmware from the newer model what are the chances it would work with the older model?
I want to copy this post over to the tablet thread and hopefully get some hits over there.
Click to expand...
Click to collapse
As long as you have a way to get to recovery from boot up you shouldn't have much of a problem. And Android and Windows work differently on many things. But android is more open. *you can do whatever with it* and if I'm not mistaken you can upgrade your firmware to 4.0 through recovery. Some tablets you can upgrade by downloading the firmware on the tablet's site.. Try that if it doesn't have the option to do a system update in the settings.
Right now I'm bricked, used the firmware from the upgraded model but worried that because there a gig of additional memory, but the rest of the hardware specs are identical, so right will not boot. Fuzzy lines, going to try and drain battery then charge and boot into recovery.
Let me clarify, I used the firmware from the manufacturer for the upgraded model. So I thought out would work. I've not given up but not optimistic. If I'm lucky someone can pull the original firmware and I can miraculously get it into download mode again for a reflash, that is if I can't get a factory reset.
UPDATE: I can power on to the first animation, the infamous penguin. Going to see if either computer will notice it tomorrow. If neither will, I'm not sure I can do any thing more.
UPDATE: it will connect but windows doesn't recognize it. I'm thinking I have options but will take time.
Sent through the stargate

[Q] HELP! only able to load stock recovery and bootloader

Hi all. New poster and completely non-tech savy. Over the last few days I've been tinkering with my phone trying to learn about various roms and related. I had successfully flashed the CM11 update to my droid X but found that the OS was running extremely slow. example ( while trying to talk through hangouts it would take 2-3 seconds for each letter to not only to show up but also register so I could type my next letter.) This having been the case I tried to downgrade the OS to stock or some older rom. Since going through the steps I find myself in alot of trouble! I am now able to load stock recovery and bootloader only! I am unable to get into Twrp or CWM at all. The phone if loaded regularly will only go as far as the Motorola logo and no further. It will stay on that logo until the battery is taken out. I am unable to power down or reboot otherwise. Unfortunatley I am unable to supply official information like Build and the related but I can say before flashed to CM11 it was the standard Droid X 2.3.4.621 M810 and the CM 11 build was the most recent CM 11 (shadow) build as of 5/18/2015. I need help to load into Twrp or whatever I can do to just load past the motorola logo screen. Oh lastly, I have installed the Motorola Driver program but my computer doesnt seem to be able to find the connection. It does show on device manager and states it is fully upto date driver wise. However it isnt found in RSD Lite run as admin. PLEASE help and or let me know of any information you need to assist me further. Keep in mind though at this time the info i have access to is very limited because of the access i dont have to the phone.
lessthansavy said:
Hi all. New poster and completely non-tech savy. Over the last few days I've been tinkering with my phone trying to learn about various roms and related. I had successfully flashed the CM11 update to my droid X but found that the OS was running extremely slow. example ( while trying to talk through hangouts it would take 2-3 seconds for each letter to not only to show up but also register so I could type my next letter.) This having been the case I tried to downgrade the OS to stock or some older rom. Since going through the steps I find myself in alot of trouble! I am now able to load stock recovery and bootloader only! I am unable to get into Twrp or CWM at all. The phone if loaded regularly will only go as far as the Motorola logo and no further. It will stay on that logo until the battery is taken out. I am unable to power down or reboot otherwise. Unfortunatley I am unable to supply official information like Build and the related but I can say before flashed to CM11 it was the standard Droid X 2.3.4.621 M810 and the CM 11 build was the most recent CM 11 (shadow) build as of 5/18/2015. I need help to load into Twrp or whatever I can do to just load past the motorola logo screen. Oh lastly, I have installed the Motorola Driver program but my computer doesnt seem to be able to find the connection. It does show on device manager and states it is fully upto date driver wise. However it isnt found in RSD Lite run as admin. PLEASE help and or let me know of any information you need to assist me further. Keep in mind though at this time the info i have access to is very limited because of the access i dont have to the phone.
Click to expand...
Click to collapse
See my
Using RSD Lite to flash a .SBF to restore (Stock Rom)
on Droid X (Shadow-MB810)
Sent from my XT907 using Tapatalk
Thats actually the guide I was following. Followed everything and started getting caught up at the RSD lite part. Tried all the provided solutions but phone still isn't found by RSD lite. Please help me get over that hump. Hoping it will be all down hill from there. Device manager is showing phone as "Motorola USB Device > Motorola Flash Interface" Not what your guide shows. Have tried updating drivers from manager but it claims I have the most up to date. Using Windows 8.1 dont know if thats relevant, Thanks for the help btw.
OMG! I DID IT!!! Thanks for the help. After searching for an answer/fix for DAYS I figured it out. Your Guide is AWESOME and very helpful but the one thing it didn't mention which is what I did to make it all finally work was to download VMplayer and do everything in a Windows 7 OS. You might want to add that to your guide as a troubleshooting step. Otherwise, THANK YOU!!!

What are my options today to have a free ROM (e.g. postmarketOS, lineageOS,...)

Hello,
I'm new here and I registered because now after searching, reading and trying different things I'm a bit confused
And: Most information is quite old...
I was donated a LG device that gives me these informations about itself:
Modellnummer: LG-K350n
Android-Version: 6.0
Android Sicherheitspatch-Level: 2018-04-01
Kernel-Version: 3.18.19
Build-Nummer: MRA58K
Software-Version: V10k-EUR-XX
My initial idea was to have postmarketOS on it and use it as kind of a small tablet - e.g. to read/write eMails, take pictures, have video-conversations via tox, use it as a music-player and maybe use it as a GPS-device (offline, just via GPS). Connections should only be made via WiFi. No SIM should be required - to make calls and SMS I have a separate feature phone, so I don't need the telephony-module.
After a while I befriended myself with lineageOS or even replicant. In such a case maybe I would even use it as cellphone and keep my feature-phone just as a back-up.
My main aspect is to have a device I control - not someone else (e.g. google).
I know that it would be easier just to use stock android and maybe fiddle a bit around, but I don't trust android/google/...
I don't need google-applications, facebook/What's-App, some cloud-based-stuff... - never did and never will. (I prefer to stay away from things that require these - if something has it mandatory then I will not use it.)
What I did until today: Following gottlasz' guide Friendly root method for lg k8 and k10 but got stuck without a version of TWRP that fits on my firmware. I found one that clamied to be OK for my firmware (https://www.cyanogenmods.org/downloads/twrp-recovery-for-lg-k8/). Booted into it, then I installed rce_univ.zip, supersu and rce_univ.zip again. But then the phone was in a bootloop saying that it was corrupted before it tried to boot itself again. With the help of a friend I restored the stock-ROM with LG Bridge (he has Windows10 on his laptop) - that took about 10 hours because here we don't have fast internet-connections...
I'm willing to put effort in this project and try to build/compile all kinds of things myself. But I need help in the way someone could guide me with what are the steps to be taken next. My PC (amd64) is running linux (gentoo to be precisely) and in a VirtualBox I have a copy of Window$ XP SP3 (32-bit).
After this toying around I found it hard to get up-to-date informations on what is possible today. And I don't want get stuck again like I was (and of course I don't want to brick it completely ).
So, please help me on my way to free my phone, I'd be glad to offer further information if needed.
Thanks a lot!
Quick answer, forget about it not going to happen.
I have k350nds with same hardware but it's dual sim and long time ago I was trying to build rom from lineage sources since there is mt6735 device tree for ex cyanogenOS and I didn't succeed because lack of knowledge and computing power, however even if I did succeeded I won't be able to flash it because nothing can be flashed, not even twrp it can be only booted from fastboot, because of some 'security' measures, it may be reverse engineered and some with knowledge can make a rom but it won't happen since device isn't so populated etc. And therefore you can only use this phone as is, I think at this point it cannot even be rooted. I received update of 11mb which didn't update patch level or anything else that I notice.
Professor Woland said:
Quick answer, forget about it not going to happen.
(...)
Click to expand...
Click to collapse
Hello Professor Woland,
thats' a pity! But thanks for your answer anyway!

Cant get OTAs to install on Perry

Problem is in the title. Here are the Cliff's Notes:
1) got Moto E4 from Textnow
2) fastboot boot TWRP.img (cant recall which image I used but pretty sure it was proper. if this makes a difference I can dig out the TWRP I used and attach it, but I really cannot recall which one it was. Pretty sure I got it from xda though, not the official TWRP page)
3) took TWRP backup of bone-stock device.
4) unlock bootloader at Motorola.com
5) check out the custom roms and found out about the LTE problem. Seanstars fix didnt work for me on several roms, but in his defense I may have done something wrong. I didnt want to mess with it anymore and decided to go back to stock.
6) I found out that I lost my bone-stock-TWRP backup through my own idiocy. I honestly have no idea how I got back to stock but I managed it. Seems to be awful hard to get a stock rom to work with. I must not be looking hard enough but it seems like all the links for Perry stock roms here are dead.
Now to the problem.... after all that I cant get OTA updates. I get notifications, the update downloads,, but no joy.
Device does *not* restart after the update downloads.
Manual restart begins the update process, but then I get the Android on the Operating Table screen. I relocked the bootloader thinking that might be the issue, but now I fear that there is some sort of signature verification issue that is stopping the update.
Trying to give relevant info from the bootloader:
Baseband: M8920_15000.280.06.58.02R PERRY_NA_CA_CUST
Product/Variant: perry XT1766 16GB P3B
I really dont know where to go from here though. Any help is appreciated, thanks in advance.
knoober said:
Problem is in the title. Here are the Cliff's Notes:
1) got Moto E4 from Textnow
2) fastboot boot TWRP.img (cant recall which image I used but pretty sure it was proper. if this makes a difference I can dig out the TWRP I used and attach it, but I really cannot recall which one it was. Pretty sure I got it from xda though, not the official TWRP page)
3) took TWRP backup of bone-stock device.
4) unlock bootloader at Motorola.com
5) check out the custom roms and found out about the LTE problem. Seanstars fix didnt work for me on several roms, but in his defense I may have done something wrong. I didnt want to mess with it anymore and decided to go back to stock.
6) I found out that I lost my bone-stock-TWRP backup through my own idiocy. I honestly have no idea how I got back to stock but I managed it. Seems to be awful hard to get a stock rom to work with. I must not be looking hard enough but it seems like all the links for Perry stock roms here are dead.
Now to the problem.... after all that I cant get OTA updates. I get notifications, the update downloads,, but no joy.
Device does *not* restart after the update downloads.
Manual restart begins the update process, but then I get the Android on the Operating Table screen. I relocked the bootloader thinking that might be the issue, but now I fear that there is some sort of signature verification issue that is stopping the update.
Trying to give relevant info from the bootloader:
Baseband: M8920_15000.280.06.58.02R PERRY_NA_CA_CUST
Product/Variant: perry XT1766 16GB P3B
I really dont know where to go from here though. Any help is appreciated, thanks in advance.
Click to expand...
Click to collapse
A number of partitions need to be pure stock for OTAs to work on Moto devices - including many that are not normally mounted. Likely one or more was altered by previous tinkering. Obviously system (never mounted r/w) and recovery; data must not have had dm-verity disabled. Etc, etc.

Hi all. I'm new to rooting can any one please help and point me to the right tutorial to root a samsung s7

Hi All
Looking for a best tutorial to follow and the right one for my phone really don't want to brick it, obviously :/. as there seems to be a few versions for the S7
I have the following: S7 android 8.0.0 SM-G930F not sure what else I need to know! I'm in the UK so I assume UK phones come with Exynos cpu's
and as far as I am aware android 8 is Oreo! but when they say Stock Rom I assume they mean the same as what came with the phone the original rom?
if so is there an alternative stable rom without the crap included or is it just as simple to delete every thing you don't want now it's rooted! and does that mean if I reset the phone its back to normal with all the crap included! or is there a way to keep it rooted even after reset! and should anything be disabled I.e prepare the phone before attempting to root like any kind of auto encryption that needs disabling and just one more question
if at anytime the rooting process hangs for a ridiculous amount of time when should I throw in the towel! and what are the chances of retrieving the phone back to original state! or does a dirty shutdown brick it?.
I started the root process but failed at first hurdle!, followed instructions install Odin3_v3.13.1 but when I connected the phone nothing showed up in Odin? though I will have another go just to confirm I followed it correctly, I'll update this when it's done.
this was the tutorial I followed:
Easy 4 Newbie [Root Guide]SM-G930F, G935F, G930FD, G935FD (Samsung Galaxy S7 Edge)
Warning ! Please note that the official TWRP for Nougat on Galaxy S7/ S7 Edge is not available yet but based on my experience the Marshmallow version is working on Nougat. By installing a custom recovery on your S7 and S7 Edge and rooting it...
forum.xda-developers.com
I know alot of questions I would really appreciate any help and clarification on the above.
many thanks
Regards
Daz
Look pal, rooting the phone is just like being an adult, it means you will get rid of Samsung's "Child Care".
Yes, UK models use Exynos chip, but you have to be sure, look at your baseband version, if it is G930FXXX, then you are good.
ROMs are in two shapes:
Stock-based: These are just like the one you are using, or other Samsung phones does, like Samsung Experience, One UI, TouchWiz. Maybe MIUI and FlymeOS will come into account, as there are ROMs based on them + Samsung's.
AOSP: These are pure Android ROMs, with few modifications to the core, but keeping the UI as close to the source as possible, Google & OnePlus phones come with a near-to-pure operating systems.
Changing a ROM is not risky, as long as you follow the instructions, without any unaccounted improvising.
Before you install a ROM, read the working and bug list, to make sure you are installing something you have an idea of.
You need to install TWRP recovery (or any other one you like), and format data, in order to be able to travel among ROMs and/or root your device.
Formatting is only required because the phone is forcibly encrypted, and TWRP can not decrypt it, at least not for this device.
Rooting is simply about flashing a 5-MB file, Magisk, then rebooting to system, no need to wipe data.
No need to do any additional steps, unless you are trying to hide root from some apps and/or pass SafetyNet.
Mohamedkam000 said:
Look pal, rooting the phone is just like being an adult, it means you will get rid of Samsung's "Child Care".
Yes, UK models use Exynos chip, but you have to be sure, look at your baseband version, if it is G930FXXX, then you are good.
ROMs are in two shapes:
Stock-based: These are just like the one you are using, or other Samsung phones does, like Samsung Experience, One UI, TouchWiz. Maybe MIUI and FlymeOS will come into account, as there are ROMs based on them + Samsung's.
AOSP: These are pure Android ROMs, with few modifications to the core, but keeping the UI as close to the source as possible, Google & OnePlus phones come with a near-to-pure operating systems.
Changing a ROM is not risky, as long as you follow the instructions, without any unaccounted improvising.
Before you install a ROM, read the working and bug list, to make sure you are installing something you have an idea of.
You need to install TWRP recovery (or any other one you like), and format data, in order to be able to travel among ROMs and/or root your device.
Formatting is only required because the phone is forcibly encrypted, and TWRP can not decrypt it, at least not for this device.
Rooting is simply about flashing a 5-MB file, Magisk, then rebooting to system, no need to wipe data.
No need to do any additional steps, unless you are trying to hide root from some apps and/or pass SafetyNet.
Click to expand...
Click to collapse
Hi Mohamedkam000
Thanks for replying. I'm not confused about why I want to root the phone. I'm just trying to understand the inner workings and the risks as I'm not as clued up with phone OS's as I am windows. I don't care about warrantees or hiding the the fact it's rooted I just want a clean rooted phone free of big brother well inside at least I know you will never completely keep them out but making it hard is a start lol.
Thank you very much for all the above especially on clarifying about the roms and the reason TWRP formats due to encryption nice one
My Baseband version slightly different though it's G930FXXU8ETI3 not sure if having a U instead of a third X makes any difference!
and I posted wrong tutorial I'm actually following this one below again not sure if that matters.
Guide How to root Android 8.0 Oreo Stock ROM on Galaxy S7 ( 100% Working )
Hi . i see too many peoples have problem on rooting Android 8.0 Oreo Stock Rom on Galaxy S7 ( edge ) and they cant get passed from the verification field error ! ok its bcuz they do only 1 step wrong , here i just wanna tell you all the steps 1...
forum.xda-developers.com
Again many thanks for clarifying that lot up very informative and much appreciated.
Kind regards
Daz
CitizenSmith said:
Hi Mohamedkam000
Thanks for replying. I'm not confused about why I want to root the phone. I'm just trying to understand the inner workings and the risks as I'm not as clued up with phone OS's as I am windows. I don't care about warrantees or hiding the the fact it's rooted I just want a clean rooted phone free of big brother well inside at least I know you will never completely keep them out but making it hard is a start lol.
Thank you very much for all the above especially on clarifying about the roms and the reason TWRP formats due to encryption nice one
My Baseband version slightly different though it's G930FXXU8ETI3 not sure if having a U instead of a third X makes any difference!
and I posted wrong tutorial I'm actually following this one below again not sure if that matters.
Guide How to root Android 8.0 Oreo Stock ROM on Galaxy S7 ( 100% Working )
Hi . i see too many peoples have problem on rooting Android 8.0 Oreo Stock Rom on Galaxy S7 ( edge ) and they cant get passed from the verification field error ! ok its bcuz they do only 1 step wrong , here i just wanna tell you all the steps 1...
forum.xda-developers.com
Again many thanks for clarifying that lot up very informative and much appreciated.
Kind regards
Daz
Click to expand...
Click to collapse
It doesn't matter which version of Android you are using, root is the same.
However, on stock ROMs, it might sometimes get rough, as you may end up with Wi-Fi not working (happened to me Q1 2020).
If you really want to learn how Android OS works, then rooting the stock ROM is not your way.
Try AOSP ROMs, preferably start with Oreo ones, you can root in 3 common way, LineageOS SU Add-on, Magisk, Super SU.
But before you tickle your phone, you have to make a backup of your current device, of every partition, EFS is the most important partition, so make sure it is safe.
Baseband version doesn't matter a lot, unless you're paranoid with updates, it is sorted alphabetically, each string on its own.
The phone is more similar to a linux machine than to a Windows PC.
Edit: To root stock ROM, you have to flash dm verity, so you don't end up encrypted again.
Mohamedkam000 said:
It doesn't matter which version of Android you are using, root is the same.
However, on stock ROMs, it might sometimes get rough, as you may end up with Wi-Fi not working (happened to me Q1 2020).
If you really want to learn how Android OS works, then rooting the stock ROM is not your way.
Try AOSP ROMs, preferably start with Oreo ones, you can root in 3 common way, LineageOS SU Add-on, Magisk, Super SU.
But before you tickle your phone, you have to make a backup of your current device, of every partition, EFS is the most important partition, so make sure it is safe.
Baseband version doesn't matter a lot, unless you're paranoid with updates, it is sorted alphabetically, each string on its own.
The phone is more similar to a linux machine than to a Windows PC.
Edit: To root stock ROM, you have to flash dm verity, so you don't end up encrypted again.
Click to expand...
Click to collapse
Thanks again for clearing quite a few things up I thought rooting stock rom would have been far safer way forward wow how wrong was I! but I guess I am just trying to find any kind simile to windows in any way but as you pointed out again it's more like Linux which again I've only played around with ubuntu and mint for a short period so again not to up on Linux lol.
It's funny I was just reading up on AOSP ROMs then got your message. I see they have a stable but not complete! Android 10 not that I would consider it need as I need a stable OS so Oreo is fine for me.
I have backed up phone using Smart Switch on the PC I assume that copy's every thing that's needed, I reset the phone in anticipation all be it prematurely but at least it restored all my data so if anything that was a good test of the back up at least .
I will have look at some AOSP ROMs and see what's involved there, I'll check out their tutorial hopefully it will include the whole process including root.
I gather by your comment using a AOSP ROM you don't need to use dm-verity or will that still be needed!.
The first thing to do is to flash (install) TWRP, it's a custom recovery (think of it as a mini OS that can boot before Android), that will be the base for any of your future tinkering.
Here is the thread, read the FP carefully: [Recovery][Exynos] Official TWRP for Galaxy S7 (herolte)
Once TWRP installed, you can do many things:
Install addons like Magisk. Magisk is the tool you use to obtain root. Forget SuperSU, its outdated, and don't works in modern versions of Android.
Install a custom ROM (this subforum is the perfect place to find them).
Backup & restore an image of your current ROM (very useful).
mooms said:
The first thing to do is to flash (install) TWRP, it's a custom recovery (think of it as a mini OS that can boot before Android), that will be the base for any of your future tinkering.
Here is the thread, read the FP carefully: [Recovery][Exynos] Official TWRP for Galaxy S7 (herolte)
Once TWRP installed, you can do many things:
Install addons like Magisk. Magisk is the tool you use to obtain root. Forget SuperSU, its outdated, and don't works in modern versions of Android.
Install a custom ROM (this subforum is the perfect place to find them).
Backup & restore an image of your current ROM (very useful).
Click to expand...
Click to collapse
Thanks Mooms for the input
I tried to follow your links tutorial which he gives three options only one is any good to me and that was installing twrp using Odin but I'm having issues at every turn!. I can't even get Odin to recognise my phone it just wont pick it up I have Samsung driver installed and I have reinstalled many times I found an article claim to have a workaround but that was BS just selling some other app I even change the driver as described on there page,
7 Tips to Fix Odin Not Detecting Phone
Are you using Odin flash tool to flash your Samsung phone but it is not recognized by Odin? Here are 7 tips to fix Odin not detecting phone.
www.imyfone.com
.
but that did nothing so reinstall normal driver again.
feels like it's just not meant to be :/
Thanks again.
CitizenSmith said:
Thanks again for clearing quite a few things up I thought rooting stock rom would have been far safer way forward wow how wrong was I! but I guess I am just trying to find any kind simile to windows in any way but as you pointed out again it's more like Linux which again I've only played around with ubuntu and mint for a short period so again not to up on Linux lol.
It's funny I was just reading up on AOSP ROMs then got your message. I see they have a stable but not complete! Android 10 not that I would consider it need as I need a stable OS so Oreo is fine for me.
I have backed up phone using Smart Switch on the PC I assume that copy's every thing that's needed, I reset the phone in anticipation all be it prematurely but at least it restored all my data so if anything that was a good test of the back up at least .
I will have look at some AOSP ROMs and see what's involved there, I'll check out their tutorial hopefully it will include the whole process including root.
I gather by your comment using a AOSP ROM you don't need to use dm-verity or will that still be needed!.
Click to expand...
Click to collapse
AOSP ROMs are pure, you can't say they are not complete. They are complete, and what OEMs do, like Samsung and Xiaomi is just a customization that you can do, too.
It is preferred that when you take a backup, take it with TWRP, just to ensure you backed up phone's partitions, along with "EFS".
The root procedure on Android 6+ is done by patching the Kernel (boot.img), so unless you take backup of that, you cannot keep root.
There are stable custom ROMs, custom ROMs are meant for custom adjustments, however the stability depends on your phone, and the way you use it, you can compare AOSP vs. Stock and see the difference.
AOSP ROMs doesn't need dm verity, well, at least not if the developer did not mention the encryption part.
Mohamedkam000 said:
AOSP ROMs are pure, you can't say they are not complete. They are complete, and what OEMs do, like Samsung and Xiaomi is just a customization that you can do, too.
It is preferred that when you take a backup, take it with TWRP, just to ensure you backed up phone's partitions, along with "EFS".
The root procedure on Android 6+ is done by patching the Kernel (boot.img), so unless you take backup of that, you cannot keep root.
There are stable custom ROMs, custom ROMs are meant for custom adjustments, however the stability depends on your phone, and the way you use it, you can compare AOSP vs. Stock and see the difference.
AOSP ROMs doesn't need dm verity, well, at least not if the developer did not mention the encryption part.
Click to expand...
Click to collapse
Some of the roms I have looked at mention external touch buttons at bottom of phone do not work or something else in the phone I'm just reading their comments.
I understand about the stock & custom rom's now that's not my problem at least not at the moment as I am miles away from choosing a rom! as I can't even get out the starting gate!. I can not get TWRP on my phone as the only way I can see to get it on a unrooted! phone is to use Odin but as I said Odin doesn't work at least not for me it does not see my phone. I would love to take a back up using twrp but that won't happen until I find a way to get TWRP on a unrooted phone. what crazy paradox is this!. you can't root phone without twrp installed and twrp won't install on a unrooted phone!. that makes perfect sense.
CitizenSmith said:
Some of the roms I have looked at mention external touch buttons at bottom of phone do not work or something else in the phone I'm just reading their comments.
I understand about the stock & custom rom's now that's not my problem at least not at the moment as I am miles away from choosing a rom! as I can't even get out the starting gate!. I can not get TWRP on my phone as the only way I can see to get it on a unrooted! phone is to use Odin but as I said Odin doesn't work at least not for me it does not see my phone. I would love to take a back up using twrp but that won't happen until I find a way to get TWRP on a unrooted phone. what crazy paradox is this!. you can't root phone without twrp installed and twrp won't install on a unrooted phone!. that makes perfect sense.
Click to expand...
Click to collapse
Does your phone allow MTP communication? I mean can you transfer files when the phone is turned on?
Does the phone show any notification about a usb connection?
If not, then you have probably a bad USB cable, at least, or you have a hardware issue that can go as deep as a burned charging port.
If yes, then either your USB cable is not as fast as the phone requires, or you haven't installed the Samsung USB Drivers on your PC.
Unfortunately, you cannot root your device without PC, at least not since Lollipop.
CitizenSmith said:
Thanks Mooms for the input
I tried to follow your links tutorial which he gives three options only one is any good to me and that was installing twrp using Odin but I'm having issues at every turn!. I can't even get Odin to recognise my phone it just wont pick it up I have Samsung driver installed and I have reinstalled many times I found an article claim to have a workaround but that was BS just selling some other app I even change the driver as described on there page,
7 Tips to Fix Odin Not Detecting Phone
Are you using Odin flash tool to flash your Samsung phone but it is not recognized by Odin? Here are 7 tips to fix Odin not detecting phone.
www.imyfone.com
.
but that did nothing so reinstall normal driver again.
feels like it's just not meant to be :/
Thanks again.
Click to expand...
Click to collapse
Which version of Odin are you using ?
Use this version (latest): Odin v3.14.4
Which version of the Samsung USB drivers are you using ?
Use this version (latest): https://developer.samsung.com/mobile/android-usb-driver.html
Mohamedkam000 said:
Does your phone allow MTP communication? I mean can you transfer files when the phone is turned on?
Does the phone show any notification about a usb connection?
If not, then you have probably a bad USB cable, at least, or you have a hardware issue that can go as deep as a burned charging port.
If yes, then either your USB cable is not as fast as the phone requires, or you haven't installed the Samsung USB Drivers on your PC.
Unfortunately, you cannot root your device without PC, at least not since Lollipop.
Click to expand...
Click to collapse
Hi
Yes I can transfer files.
Yes phone asks to allow or block file transfer and it ohone shows up in Devices and Drives list and I can access the phone directory and shows up as Samsung s7 icon.
I will try another USB lead but the one I'm using is new and wasn't cheap but still a possibility I have had leads that weren't suitable for other things I was trying so it is worth a try.
Thanks
mooms said:
Which version of Odin are you using ?
Use this version (latest): Odin v3.14.4
Which version of the Samsung USB drivers are you using ?
Use this version (latest): https://developer.samsung.com/mobile/android-usb-driver.html
Click to expand...
Click to collapse
When I downloaded Odin this was latest one Odin3_v3.13.1 though I have doubts that one version update will fix this issue as I did not see many if any people having my issue so they all used Odin and I believe theirs are fine even with older versions! but as I said Mohamedkam it's worth a try I will down load that version and give it a try.
As for the Samsung usb driver I believe that is where I got mine
SAMSUNG_USB_Driver_for_Mobile_Phones no version visible under properties on file version 1.7.23.0.
The USB connection seems to be fine I have uninstalled then re-download and reinstalled a couple of times.
I can transfer files no problem it shows up as Galaxy S7 Icon with card and phone drive inside.
I'll update shortly thank you.
Update:
I just went to try new Odin and whilst checking my phone have seen I have Offical TWRP app installed? I have no clue as to how that's got in there! as Odin did not show phone so I could select nothing!.
In the phone I open app and if i select backup existing recovery it opens and Select Folder tab and under that Selected Folder: /sdcard Filename: Recovery .img and at the bottom of screen Root access required.
I just hope it's installed correctly!. it is showing in playstore my apps as well just to confirm. if this is now installed what should I do next Now not sure what tutorial to start following.
I am just going to try the new odin and see if it picks up the phone back soon.
OK Seem that it now shows up in the new Odin. at least I think it has! in the log window I see this: <ID:0/004> Added!!
I didn't see that before.
Would be grateful if you could tell me how to proceed from here!
Correct, you don't need he latst version of Odin or the Samsung drivers, bit it was just to be sure.
You need to be in download mode, but before, you must have checked OEM unlock & USB debug in developer options (mandatory).
I've written a tutorial with images here (in French):
Samsung Galaxy S7 (edge) - Mangez un Oreo! [Topic Unique] - Page : 487 - Téléphone Android - Technologies Mobiles - FORUM HardWare.fr
mooms said:
Correct, you don't need he latst version of Odin or the Samsung drivers, bit it was just to be sure.
You need to be in download mode, but before, you must have checked OEM unlock & USB debug in developer options (mandatory).
I've written a tutorial with images here (in French):
Samsung Galaxy S7 (edge) - Mangez un Oreo! [Topic Unique] - Page : 487 - Téléphone Android - Technologies Mobiles - FORUM HardWare.fr
Click to expand...
Click to collapse
As I said the older version did not show any kind of data what's so ever and the phone was in download mode. phone displayed "Downloading" which I believe it says that even if it's not doing anything! so a tutorial explained. I think it must have installed the Official TWRP app even though phone did not show up in Odin everything was blank however when I installed the new version of Odin like you suggested it then showed up as <ID:0/004> Added!!. so your suggestion work thanks for that and I did enable OEM unlock & USB debug I did long time ago.
I would check out your tutorial but unfortunately I don't speak French and translating instructions is too risky but thank you for the offer but I'll carry on look around still undecided on what custom rom to go for as I said some comments point out small issues and the developers also state certain things are not working so that is making it hard to consider one if you know what I mean.
Again Thank you for your input very much appreciated.
CitizenSmith said:
As I said the older version did not show any kind of data what's so ever and the phone was in download mode. phone displayed "Downloading" which I believe it says that even if it's not doing anything! so a tutorial explained. I think it must have installed the Official TWRP app even though phone did not show up in Odin everything was blank however when I installed the new version of Odin like you suggested it then showed up as <ID:0/004> Added!!. so your suggestion work thanks for that and I did enable OEM unlock & USB debug I did long time ago.
I would check out your tutorial but unfortunately I don't speak French and translating instructions is too risky but thank you for the offer but I'll carry on look around still undecided on what custom rom to go for as I said some comments point out small issues and the developers also state certain things are not working so that is making it hard to consider one if you know what I mean.
Again Thank you for your input very much appreciated.
Click to expand...
Click to collapse
Take a note that, when you flash TWRP, you have to boot immediately to the recovery, so as to enforce its existence, cause I remember they phone has an original recovery backed up somewhere, and gets triggered when you reboot directly to system instead of the unofficial binary.
I advise you to watch guides on YouTube, it's more .. understandable.
CitizenSmith said:
still undecided on what custom rom to go for as I said some comments point out small issues and the developers also state certain things are not working so that is making it hard to consider one if you know what I mean.
Again Thank you for your input very much appreciated.
Click to expand...
Click to collapse
I recommend to go with ALEXNDR ROM: zero bugs, everything works perfectly (it's based on stock ROM).
[ROM][G930F/FD][ALEXNDR] * U8EUE1 * DevBase v7.4 * Encryption support [Jul-10]
Important notes for Developers / Chefs !!! This ROM is NOT based on any other custom ROM. My work contains many original ideas and innovations that I introduced as the first in the ROM development (see "Changelist" in post #2). Of course, it...
forum.xda-developers.com
Mohamedkam000 said:
Take a note that, when you flash TWRP, you have to boot immediately to the recovery, so as to enforce its existence, cause I remember they phone has an original recovery backed up somewhere, and gets triggered when you reboot directly to system instead of the unofficial binary.
I advise you to watch guides on YouTube, it's more .. understandable.
Click to expand...
Click to collapse
Yer I read that but I've ended up with TWRP installed and did not do that process because I was unaware it installed until it showed up.
As I said I'll just keep looking for now I know I'll find one that works for me from start to finish.
and I've been checking youtube but wouldn't want to use any links their providing but it may help familurise myself with the whole process if i watch enough of them.
Thanks again for your help.
mooms said:
I recommend to go with ALEXNDR ROM: zero bugs, everything works perfectly (it's based on stock ROM).
[ROM][G930F/FD][ALEXNDR] * U8EUE1 * DevBase v7.4 * Encryption support [Jul-10]
Important notes for Developers / Chefs !!! This ROM is NOT based on any other custom ROM. My work contains many original ideas and innovations that I introduced as the first in the ROM development (see "Changelist" in post #2). Of course, it...
forum.xda-developers.com
Click to expand...
Click to collapse
Hi Mooms
I will check that out many thanks. I wonder if you could help me here. I am in the middle of the rooting process but have hit a snag. again!
I have now installed TWRP successfully then no-verity-opt-encrypt-3.1 all went fine and I'm at point of flashing Magisk but have an issue when I swipe to flash is gives me a error in red saying "invalid zip file format !"
I downloaded it from github here.
GitHub - topjohnwu/Magisk: The Magic Mask for Android
The Magic Mask for Android. Contribute to topjohnwu/Magisk development by creating an account on GitHub.
github.com
I click on "code" tab and then "download zip" and I placed that in a download folder on my sd card when I select it I get the above error any ideas as to why I am getting this am I downloaded the correct file?
thanks for any assistance you could give.

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