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[Q] TF boots, flashes locked screen for a second and shuts down! :(

Hello friends, Please note that i tried installing ClockworkMod 3.1.0.1 but it refused to setup for some reason, even though i did everything right i.e. holding down the down vol key and power button etc but like others i only get the green android with the exclamation mark in the middle, so i do not have a backup unfortunately ;(
Anyway the story starts here:
Please be patient with me though as i am new to all this but learning fast.
Got a new Asus transformer TF101 (with keyboard) for only 5 days with
Device serial: B70KAS3?????
Build number: HMJ37.WW_epad-8.4.4.11-20110711
Android version: 3.1
Didnt know about Razorclaw ability to root B70 :-(
Anyway on going online on the TF101 for the first time, I immediately got a message saying there was a new os update available, the TF101 auto downloaded it and i then immediately updated it, thinking that the new update was best for me :-(
After the update, i then had -
Build number: HTK75.WW_epad-8.6.5.21-20111216
Android version: 3.2.1
Razorclaw doesnt work on my TF101 however i was able to use use the WW_epad-user-8.6.6.19.zip update on it and then was able to root using Razorclaw.
After that everything worked fine until i used 'Rom Manager' to create a script that was to change my hostname to my preferred one instead of the usual 'android_????????????', i then set it to do so on boot within 'Rom Manager'.
I then used 'Rom Manager' 'reboot' script to reboot the TF and now it boots then flashes locked screen for a second and shuts down and the same thing happens when i power it up again
If i am lucky and quick, i can put in the password and see the desktop just before it shuts down.
I have a feeling it the script i created and set to execute on boot is what is causing the shutdown.
Is there anyway to fix this?
It not a low battery issue, already checked that.
Was thinking along the lines of a key combination to prevent scripts running on boot time.
Dont really want to wipe the TF, as it already taken me 5 days to get it setup how i want it and now this!

It sounds like you have a stock recovery and a buggered up system.
You might be able to recover with adb, but you'll have to know what to stop/kill before it reboots. If it's enable, adb will be active well before you see the lock screen. There might also be some tools in the android sdk, perhaps ddms.
What exactly is in this rom manager script? Perhaps it is passing a reboot via one of the partitions. You would need to clear the command to stop the reboots or just kill the process that is rebooting.
That's all I gots. Good luck!

gee one said:
It sounds like you have a stock recovery and a buggered up system.
You might be able to recover with adb, but you'll have to know what to stop/kill before it reboots. If it's enable, adb will be active well before you see the lock screen. There might also be some tools in the android sdk, perhaps ddms.
What exactly is in this rom manager script? Perhaps it is passing a reboot via one of the partitions. You would need to clear the command to stop the reboots or just kill the process that is rebooting.
That's all I gots. Good luck!
Click to expand...
Click to collapse
thanx for responding mate...appreciated.
the script is just a simple script with just one line with tr3ble being the new hostname, its exactly as below:
setprop net.hostname tr3ble
I'll have a tinker with adb but what how do i search for processes to stop/kill using adb as im not that clued up with linux commands

I'm not a pro either, but I think "ps" will show you the process and "kill <pid>" will kill them. There might be a better way and I haven't tested this, so if you end up in a worse situation than then one you are in, it's all on you.
I don't think that changing the hostname will cause a reboot. I think the "reboot" command from rom manager is somehow stuck. I think it passes a reboot command via one of the partitions so that it can "find" it when it restarts. You would just have to clear the command. I think it's somewhere in the /cache directory, but that is just a guess.

gee one said:
I'm not a pro either, but I think "ps" will show you the process and "kill <pid>" will kill them. There might be a better way and I haven't tested this, so if you end up in a worse situation than then one you are in, it's all on you.
I don't think that changing the hostname will cause a reboot. I think the "reboot" command from rom manager is somehow stuck. I think it passes a reboot command via one of the partitions so that it can "find" it when it restarts. You would just have to clear the command. I think it's somewhere in the /cache directory, but that is just a guess.
Click to expand...
Click to collapse
Wow...you are definitely pointing me in the some direction though, in the begining i didnt have a clue what to do and where to look but now i have a few things to try...i'll see how things go with adb and report back.
Thank you for your time and patience mate

Update:
I tried everything i could but just didnt seem to have much time to do much using adb so i bit the bullet and did a data wipe, but to my joy, after the data wipe the TF was still rooted and my adhoc hack was still in place. If only took me bout an hour to then reinstall all my apps, which was more or less easy as i had them all in one folder on my microSD.
So all in all, the data wipe which cured the shutdown after restart wasnt sooo bad afterall.
Thank for your help mate!
....Happy New year!

b00b said:
Update:
I tried everything i could but just didnt seem to have much time to do much using adb so i bit the bullet and did a data wipe, but to my joy, after the data wipe the TF was still rooted and my adhoc hack was still in place. If only took me bout an hour to then reinstall all my apps, which was more or less easy as i had them all in one folder on my microSD.
So all in all, the data wipe which cured the shutdown after restart wasnt sooo bad afterall.
Thank for your help mate!
....Happy New year!
Click to expand...
Click to collapse
Did the same exact procedure when the same thing happened to my TF earlier this month.... Good to know that i wasn't the only one that faced this situation.
Sent from my Transformer TF101 using xda premium

[Q] "Lost root" after busybox upgrade - Cannot r/w to / !

[Hopefully I didn't miss this being covered somewhere else, as I am much the same as many of you and get beyond irritated with endless repeat questions. I searched using the best keywords I could think of for the issue, but to no avail. Apologies in advance if this has been covered!]
Alrighty. I've got a TF101, rooted it myself (thank you XDA), running 8.6.5.1.9 i believe, stock rom just with root. Used nvflash and Razorclaw. Worked like a charm.
It's been fine for the last 6 months, no issues. However, I decided to update busybox using its internal updater as I have before with no problems. I noticed I accidentally told it to install to /system/bin instead of /system/xbin, and the only reason I even knew about that was due to having to configure an app to find busybox in /xbin instead of /bin.
Now there's a problem. I can still access the internal virtual sd card, but that's about it. The device can't seem to read or write to the main directory (although it can deal with going DIRECTLY to /mnt/sdcard). Ghost commander can't view the main directory, but ESFile explorer _can_, although root browsing in ESFile Explorer is UNchecked. It shouldn't be able to do what it's doing, and it's only doing it in one of two apps.
As a result, I've got no access to any root apps obviousy, but the wifi is having issues as well, it tries connecting but it can't complete the connection.
I'm toying with just wiping and flashing a new rom entirely, but figured I'd ask before I jump in the deep end of things. I keep backups of stuff, but it's still such a pain in the ass reinstalling things.
Any suggestions? I have a feeling it's something "simple", a link file or ... something which linux gurus would know about and I would not, not being a guru or disciple myself.
Thanks in advance!

If only you have working CWM installed. You could just flash this Superuser3.0.7.

Ah, but the plot thickens. I had superuser on there. I even uninstalled and reinstalled it. No dice.
Update: I said fuggit and did a factory reset. However, my wifi is still not fully connecting to my network although it has no problem finding it. I don't have a recovery image on the external SD and unless i get the network working, will have to wait until tomorrow to get a working microsd->usb adapter to put it on there.
I CAN still get into CWM, thank god.
Current rom is stock 8.6.6.19
Razorclaw gives an error when trying to root.
Also, when trying to moust USB from the recovery menu. it fails, saying "E:unable to upen ums lunfile (no such file or directory).
I am hoping this will magically get fixed after re-installing stock from the SD card ... and that my device isn't somehow crippled.
Sorry for the massive details, but more data = better.

It will magically get fixed
I recommend you flash any Totally stock ota. Then upgrade to the latest OTA, then use my tool PERI (or another) to install recovery and root. Then you should be all fixed up.

Well, it looks like I did get things back on track, but oddly enough, neither of the standard OR modified for root stock ROMs would work. One just wouldn't install, another failed halfway through. MD5s checked out and everything. I had put Revolver 4 beta on there sort of as a "just in case", and that one installed fine (and I was pleased when it displayed "installing Busybox symlinks").
Phew. CLose close call. Now to deal with the bull**** of setting stuff back up again.
However, the question remains: I'm assuming this whole thing happened because of the busybox update and me accidentally installing it to /bin instead of /xbin, and I think it "cleaned up" its own symlinks or something.
I'm not saying don't update your busybox, although I'm sticking with what works and **** upgrading anymore, just be careful...
Thanks for the help!

Recently I used the busybox installer to update my busybox version and it went through great... but after reboot it reverted back to the old version.. And I never touch it since.. don't want to take the hassle further..

There are certain 'plague' versions of busybox that simply don't work. I'd find that list of working BBs and STICK with one that's good. I'm still on 1.63 or someat like that.

Mangraa said:
[Hopefully I didn't miss this being covered somewhere else, as I am much the same as many of you and get beyond irritated with endless repeat questions. I searched using the best keywords I could think of for the issue, but to no avail. Apologies in advance if this has been covered!]
Alrighty. I've got a TF101, rooted it myself (thank you XDA), running 8.6.5.1.9 i believe, stock rom just with root. Used nvflash and Razorclaw. Worked like a charm.
It's been fine for the last 6 months, no issues. However, I decided to update busybox using its internal updater as I have before with no problems. I noticed I accidentally told it to install to /system/bin instead of /system/xbin, and the only reason I even knew about that was due to having to configure an app to find busybox in /xbin instead of /bin.
Now there's a problem. I can still access the internal virtual sd card, but that's about it. The device can't seem to read or write to the main directory (although it can deal with going DIRECTLY to /mnt/sdcard). Ghost commander can't view the main directory, but ESFile explorer _can_, although root browsing in ESFile Explorer is UNchecked. It shouldn't be able to do what it's doing, and it's only doing it in one of two apps.
As a result, I've got no access to any root apps obviousy, but the wifi is having issues as well, it tries connecting but it can't complete the connection.
I'm toying with just wiping and flashing a new rom entirely, but figured I'd ask before I jump in the deep end of things. I keep backups of stuff, but it's still such a pain in the ass reinstalling things.
Any suggestions? I have a feeling it's something "simple", a link file or ... something which linux gurus would know about and I would not, not being a guru or disciple myself.
Thanks in advance!
Click to expand...
Click to collapse
You may have been hit with a bug I introduced.
There was a bug with version 8.0 of my application.
There is not an issue with Busybox V1.20.1.
I apologize for this bug, the application symlinked all applets to Busybox and on some devices there are applets which are unique to the device and should not be replaced by those offered by Busybox.
A simple way to fix this is to simply reflash your rom. You do not need to wipe or clear any data. This will fix the issue and you can update Busybox normally with my application as long as it is version 8.1 or higher.
I apologize for the frustration I have caused, please let me know if I can do anything to help you further. I am trying to find people who were affected to see if I can help rectify the situation.

yeah me too
I guess I should have done a more recent backup. I tell you, there is a reason i have 38 updates waiting, everytime I start going through them, boom blows up in my face

TF700t and rooting

I've read the dedicated thread on rooting the TF700t with DebugfsRoot_v1.9 (http://forum.xda-developers.com/showthread.php?t=1706588&page=48).
I did successfully root a TF700t with 9_4_5_22.
Now I tried the same method after upgrading another TF700t from stock to 9_4_5_26.
Everything works fine during rooting (I've tried both manual and automated DebugfsRoot 1.9) with the following exceptions:
1. during the 3rd stage of rooting, I get
/system/bin/sh: /system/xbin/su: not executable: magic 7F45
2.
Superuser access does not seem to be active after rooting. I did uninstall and re-install Superuser with no superuser access success.
I tried both under XP and 7/32 on the same device, no errors but root does not seem to be active. Between rooting attempts, I restored stock ROM.
Other details:
Asus USB drivers installed (off Asus website)
Asus synch is disabled and prevented from launching.
Security/Unknown sources is checked.
Developer options / USB debugging is ON/checked.
What do you think goes wrong?
Any help is appreciated. Thx

the same..
I have nearly the same problem...
I have updated my rooted .21 to .26, then unlocked it and as it seems have lost root. I dont really know if it happened afted updating or afted unlocking...
None of my R-applications can get root, and so on...
I've tried to use the same method i used to get root on .21 and got this:
Step 2 - Rooting...
debugfs 1.42 (29-Nov-2011)
debugfs: rm: File not found by ext2_lookup while trying to resolve filename
debugfs:
debugfs: debugfs: Allocated inode: 1469
debugfs: debugfs: debugfs: debugfs:
Rebooting...
Testing superuser...
uid=0(root) gid=0(root) groups=1003(graphics),1004(input),1007(log),1009(mount),1011(adb),
1015(sdcard_rw),3001(net_bt_admin),3002(net_bt),3003(inet),3006(net_bw_stats)
uid and gid should both be 0.
Are they? (y/n):
Click to expand...
Click to collapse
And still no root...
What am i doing wrong? What to do next?
Thanks!

Is it a superuser problem?
EnginesRun said:
2.
Superuser access does not seem to be active after rooting. I did uninstall and re-install Superuser with no superuser access success.
Any help is appreciated. Thx
Click to expand...
Click to collapse
Can't help yet but I am having a similar problem with SU; its presence suggest I have root but it denies everyone else SU permissions...

After rooting, run SuperUser explicitly from the applications menu. Then try your apps that require root access. I noticed that I had the issue of running the DebugFS root batch and then later was not able to properly run Adaway. Ran SuperUser, then everything went smooth.
I think someone already mentioned this in another thread.

alienedd said:
After rooting, run SuperUser explicitly from the applications menu. Then try your apps that require root access. I noticed that I had the issue of running the DebugFS root batch and then later was not able to properly run Adaway. Ran SuperUser, then everything went smooth.
I think someone already mentioned this in another thread.
Click to expand...
Click to collapse
nope. doesnt help in my case..
---------- Post added at 10:17 AM ---------- Previous post was at 09:37 AM ----------
ok, i've solved my problem.
the idea mentioned by alienedd helped me to see that i could have a working root but faulty superuser app.
so i started with installing it from market.
then i ran DebugfsRoot_v1.9.
till it got to this point:
Testing superuser...
uid=0(root) gid=0(root) groups=1003(graphics),1004(input),1007(log),1009(m ount),1011(adb),
1015(sdcard_rw),3001(net_bt_admin),3002(net_bt),30 03(inet),3006(net_bw_stats)
uid and gid should both be 0.
Are they? (y/n):
Click to expand...
Click to collapse
then i have cleared all the data held by superuser app through settings\apps, stopped it and uninstalled.
after that i continued with the script and it installed me superuser app again.
after installing i've launched it and then ckecked my root-needed apps. they are ok now.

Ahhh, yeah. Read about that in the DebugFS thread that sometimes one needs to uninstall superuser then reinstall for it to run properly. Didn't think about that. Glad that its all working now for yas.

I have tried all of this with 4 different packages (3 of the automated root from here and 1 from a link in the [RESOURCES] thread in the dev forum. every time, each package says that I have root, but when I check I do now. I followed what masseselev said and it failed as well. I have spent the better part of 5 hours trying to root. I guess I should say that I just got my infinity last night...and like a crackhead applied .26 ota without thinking about it. but I have read where the automated works fine with .26. I am pulling my hair out trying to figure out why I cant get root on this thing. the packages always say that they were successful and that I have root, but I do not. no apps can gain root. terminal emulator still shows $ after trying to enter "su". I have tried several different root checkers and they all say I do not have root. any other ideas? I should also say that I have not unlocked the bootloader.

henbone11 said:
I have tried all of this with 4 different packages (3 of the automated root from here and 1 from a link in the [RESOURCES] thread in the dev forum. every time, each package says that I have root, but when I check I do now. I followed what masseselev said and it failed as well. I have spent the better part of 5 hours trying to root. I guess I should say that I just got my infinity last night...and like a crackhead applied .26 ota without thinking about it. but I have read where the automated works fine with .26. I am pulling my hair out trying to figure out why I cant get root on this thing. the packages always say that they were successful and that I have root, but I do not. no apps can gain root. terminal emulator still shows $ after trying to enter "su". I have tried several different root checkers and they all say I do not have root. any other ideas? I should also say that I have not unlocked the bootloader.
Click to expand...
Click to collapse
What exactly are you doing as its kind of hard to determine what has gone wrong?
DebugFS works with .26 OTA and you don't need an unlocked bootloader for it to work (though having root might cause problems for getting OTAs and the unlocker to work).

alienedd said:
What exactly are you doing as its kind of hard to determine what has gone wrong?
DebugFS works with .26 OTA and you don't need an unlocked bootloader for it to work (though having root might cause problems for getting OTAs and the unlocker to work).
Click to expand...
Click to collapse
just trying to run the debugFS automated tool. it runs fine, and gives all indications that it works successfully. but I still dont have root. its driving me crazy. I have run 2.0, 2.1 and 2.2 packages and all said I was rooted...but I dont think I am. I have installed and uninstalled superuser and rebooted numerous times. I went ahead and unlocked the bootloader and it still wont work. I can open a command prompt from within the package folders (2.0, 2.1 and 2.2) and run adb shell, then su and it shows #. but if I do it from terminal on the infinity it shows $ when i do su. sorry if im vague, im just brain fried at this point and dont know what else to do.

henbone11 said:
just trying to run the debugFS automated tool. it runs fine, and gives all indications that it works successfully. but I still dont have root. its driving me crazy. I have run 2.0, 2.1 and 2.2 packages and all said I was rooted...but I dont think I am. I have installed and uninstalled superuser and rebooted numerous times. I went ahead and unlocked the bootloader and it still wont work. I can open a command prompt from within the package folders (2.0, 2.1 and 2.2) and run adb shell, then su and it shows #. but if I do it from terminal on the infinity it shows $ when i do su. sorry if im vague, im just brain fried at this point and dont know what else to do.
Click to expand...
Click to collapse
Yeah, I understand. Um, I know I've repeated this several other times but I don't see it in your list of things you've done. Were you able to open up the superuser application? It seems that if it opens, you have root, and in some cases might not work until it is opened. It's both fortunate and unfortunate that I did not encounter many problems while rooting so my experience with possible errors isn't that expansive. However, you've run the package(s) completely so it's not a driver issue and you can adb and see su access. It just seems like the tablet isn't recognizing that it does have it.

yeah, I ran superuser immediately after rooting. then rebooted each time. http://forum.xda-developers.com/showpost.php?p=29951628&postcount=494
lol thats everything that I have tried. kinda sucks, but im sure someone will figure it out at some point.
weird thing is, if I run a command prompt from within the package folders I see that its rooted. if I run terminal on the device it says permission denied and prompt is still $. just odd.

I'm sure that sparky can give you help in the main thread as he has a whole lot more knowledge about the possible failings. Also, read over some of the other threads here as there seem to be quite a few people with errors that I don't even understand why they are happening. Maybe a something like simply the drivers? http://forum.xda-developers.com/showpost.php?p=29974269&postcount=9
Other then that, I'm at a loss bud. Do mention the fruits of your research though as I'm sure it would definitely be helpful to others.

alienedd said:
I'm sure that sparky can give you help in the main thread as he has a whole lot more knowledge about the possible failings. Also, read over some of the other threads here as there seem to be quite a few people with errors that I don't even understand why they are happening. Maybe a something like simply the drivers? http://forum.xda-developers.com/showpost.php?p=29974269&postcount=9
Other then that, I'm at a loss bud. Do mention the fruits of your research though as I'm sure it would definitely be helpful to others.
Click to expand...
Click to collapse
yeah, we have been trying to figure it out...no joy. I have seen quite a few people with the same issue. hopefully someone can sort out why its happening soon. even if I cant root, at least knowing why would somewhat appease me.

henbone11 said:
yeah, we have been trying to figure it out...no joy. I have seen quite a few people with the same issue. hopefully someone can sort out why its happening soon. even if I cant root, at least knowing why would somewhat appease me.
Click to expand...
Click to collapse
Perhaps this then?

d14b0ll0s said:
Perhaps this then?
Click to expand...
Click to collapse
Ok, I followed this http://forum.xda-developers.com/showpost.php?p=28519641&postcount=11 and was successful in rooting mine and my gf's infinity's.
one thing though. after manually rooting, after the final reboot, go into the Superuser app. DO NOT UPDATE IT FROM WITHIN THE APP. for some reason, updating from within Superuser borks the app. at least it did for mine and my gf's.
optional:
close Superuser. go to the play store and download busybox installer (needed to run titanium backup), root checker (there are a ton, just pick one of the top ones), adaway, ota rootkeeper and titanium backup. doesnt matter what order. I would run busybox installer first though once you have everything installed. after busybox installs, you can run root checker, adaway or titanium to check root. I say after you install busybox because some apps do require busybox to be installed before they consider you rooted. if you get the superuser prompt to allow/deny, everything is working fine. once you know that you have root and everything is working ok, run ota rootkeeper.
my only question at this point is regarding OTA updates. to my understanding, simply rooting will allow you to continue to receive OTA updates, but unlocking the bootloader will prevent you from getting OTA updates...is this correct?

[HOWTO] Root/Fix wifi Avail Z990 No ABD

It's actually super-super easy to root.
You have to make sure you:
Have access to the sdcard, either through ADB or a adapter to your computer.
If phone is locked, use an AT&T sim. If unlocked, and using another carriers sim, must have APN info
Have data working on the phone, either wifi or from the carrier. You also must have a Google account to download/install 2 programs from Play Store
Now, I use T-Mobile, and my data speed here is GPRS..Yep, not even dialup speeds. During the unlock process I was following, my wifi mac address got screwy (If, when trying to enable wifi, it keeps shutting off, you may have same issue)
But, I'll also show how to fix that, too.
The following HOWTO does NOT require ADB, but it can make life easier for you. I always enable it at first boot.
The sections in Green are for everybody
The sections in Blue are if, like me, you have no wifi
** This WILL work for the AT&T Avail ZTE-Z990 (MIGHT work for the Z990g Merit. I don't have one, so proceed at your own risk ). It may work on your phone. It may not.
** If you follow this, and you 'brick your phone', start World War III, or your hair falls out, IT'S YOUR PROBLEM, NOT MINE.
Hit the dialer on your phone. Dial *983*7668# (DO NOT PRESS THE GREEN SEND BUTTON)
After the little text saying something about root, go to the Google Play Store, and search for "Superuser". The first on the list you want to install
After Superuser installs, start it, and go to the FAR LEFT, and find where it says "Tap here" for updating. Let it update. If it doesn't, reboot the phone, try again
If you get an error about the * code, you may have a newer update from your carrier installed. Google search for "TCard z990", and reflash for the older rom. The *code will work then.
You got root, Really, It's THAT easy
Now for 'goofy wifi'
After Superuser is up and running, get "Absolute System Root Tools" from the Play Store, and install it.
When you run the program, it should have a dialog from Superuser to allow access. If not, reboot, try again
At the top of ASRT, tap "File Browser", navigate to "/system/etc"
Find the file 'nv_4319.txt', and tap it.
Scroll down to two lines that have "macaddr" in them. One has a '#' infront of it. Swap the '#' from the front of that line to the front of the other 'macaddr'
Press Menu button, and save. Back out of ASRT, and go to the wifi settings. Turn your wifi off, then back on. You should be able to connect to wifi now.
That's about it.
Now if we can just get some headway with a Cyanogen ROM for this thing....

i just rooted and then modified the nv_4319.txt file. i did install superuser but i dont think is needed, no permission was asked. instead of ASRT, any root file explorer with built-in text editor will work. i used root explorer.

el_venga said:
i just rooted and then modified the nv_4319.txt file. i did install superuser but i dont think is needed, no permission was asked. instead of ASRT, any root file explorer with built-in text editor will work. i used root explorer.
Click to expand...
Click to collapse
Better install SuperUser
Why? Because, if you don't, EVERYTHING has su access ALL THE TIME. The Superuser app limits this.

nv-4319 edited but still nothing
i tried your method and edited the file successfully but my wifi still stays white and when i attempt to turn it on it simply flashes and returns to the same error message. i rooted my device successfully several months ago and wifi worked fine until i used the trev e mod tethering app which worked well once, however neither wifi or tethering have worked since. any other suggestions are welcome, and thanks in advance.

General procedure info?

Hello. I'd like to root my phone, but I am wary about not doing it right.
All the sites and info I find about how to do it are very generic and often contain downright typing errors, or suddenly veer into manipulations that I may not want to do. The problem is that there is little to no information about what actually happens. It is usually a handheld process for ignorants that leave us hanging if any of the steps go awry.
Install ADB/Fastboot. Enable USB debugging. Copy TWRP. Reboot phone. Click here. Click there. Done(maybe)!
What is ADB/Fastboot? What is TWRP? Why do I do all of this? When the instructions suddenly detail something else than what I have in my lap, what do I make of it?
For example - I have no idea if the chain of instructions will wipe my phone clean or just grant me administrator privileges. It doesn't say anywhere. That recovery image, what is it? What does it do? I am instructed to install SuperSU, but in other places it says to do that after rooting, not before. And it is a Google Play app now instead of a file I can copy. Et cetera and so on.
So what I am asking for here is this:
Is there any comprehensive place where I can get the pieces togheter and learn what the heck all of these operations actually do, why they do it, and what the consequenses may be? Because right now I am trying to puzzle together bits of information from all over the place, half of which appears to be obsolete.
Thank you for any help

This may actually offload forums like these from all the questions that go "I have an XYZ phone and I clicked and typed all the buttons and words you said and the desired result did not come of it, what do I do? My phone is broken! Help!"