Hello, I recently decided to root my phone and place Cyanogenmod on it. When I did that I realized my radio was no longer working. In an attempt to just get back to a working phone for the time being I flashed a rom that I believe was just for the Nexus S and not Nexus S 4G. Due to my stupidity I am unable to communicate from the device to my computer using USB. When I attach the device to the computer nothing happens. The device does not even appear in the device manager. I have tried on multiple computers as well. On top of that the rom seems to have put me back into the stock recovery. If anyone could help me figure out just how to get USB working again I would be very appreciative.
I should note that I can still transfer files to the phone using the sd card or via ftp.
Thank you for your time and help.
Change the USB cable?
Yes, forgot to mention that. I have tried 2 cables both of which work on other devices.
What if you hold in the middle of the volume buttons (i.e. both up and down at the same time) and keep holding, then plug in to your usb port? It should come up as download mode. If it will do that you might try using Odin.
Or try a different machine perhaps?
are the drivers the same for the S as the 4g?
do you have clockwork on the phone or have you tried to run recover by holding volume up and power?
just throwing things out.
Hello, I appreciate any and all suggestions and help.
I have Odin downloaded and installed, but the computer can not find the device so Odin can not do what it needs to do. This is even the case in download mode.
In terms of recovery I am on the stock recovery. I was on clockwork but made a small mistake and now am back to stock.
I know if I can just get the computer to see the phone exists I can fix it.
If you can find the full OTA package for NS4G, you can try putting it on the SD card and flash it via stock recovery.
Also another thing worth trying is connecting the phone to an Ubuntu machine and see if it's detected or not.
I have tried looking for the original full OS. I will continue looking, but the different OS thing is a good idea I did not think of. I will attempt that now. Thank you.
I installed Ubuntu and the Android SDK and Ubuntu was unable to see the phone as well. I am going to keep searching for the original firmware to see if that will fix it. Thank you for your help so far, it is greatly appreciated.
I have found the only rom my phone will accept now is
Android 2.3.4/GRJ22/KRKC1 Radio/KA3 Bootloader
Which is for the M200 variant. This apparently the Korean version.
Hi all,
I've got a Nexus S 4G CDMA Sprint phone running Stock ICS 4.0.4 IMM76D.
My bootloader is unlocked from previous roots and whatnot.
My problem is that my phone is not being recognized by my computer at all. We're talking complete nonrecognition. No yellow triangle in device manager, no pop-ups, nothing. This phone will just not be read by my computer! I've tried different cords, different computers, re-installation of drivers after resetting my computer, installed PDA net, did a factory reset on the phone, I've literally been on Google for hours upon hours upon hours trying to figure this out and can't figure out why the computer is not recognizing the phone and why the phone is not allowing me to put it into usb mounting. It is however, charging via the computer and wall plug. I can get into stock 3e android recovery, fastboot using V-Up and Power and I can get it into download mode. It is NOT recognized in any modes by the computer nor other computers including my Linux box. The phone states that the usb control initializes but then ends a moment later. I am thinking this is a hardware issue but that leaves me with two issues:
If I was to go to Sprint to have it fixed they would realize my bootloader was unlocked thus voiding the warranty and I'd feel like quite an idiot at the store
If it is hardware related why is the charge working on the device.
I have also tried to bend up the usb plate to make it touch the pins better but that did not help at all. I am at my wits end and really need some help here, I've done everything I could find on Google and here plus more. I want to just return it but with the bootloader unlocked this is really not a possibility. I am looking for help to either become able to lock the bootloader without it having to be connected via the computer so I can then get it fixed if it is hardware related or if I can get the darn thing to be read by the computer once more. so yea, this is where I am at and I would appreciate it so much if someone could help me out, thanks guys!!!
Wireless adb in playstore should help.
Sent from my Nexus S 4G using XDA
That would be perfect! Only problem is that it requires root access on the phone which I am unable to obtain because I cannot access the phone. Is there a way to root the phone without having to connect it via the computer? Something like an update.zip with files able to be flashed through android recovery 3e? If I can get root access than wireless adb would be perfect.
*ultimately if I could remove signature checking in Android Recovery 3e that would work so I could in turn try to root the phone and install a different recovery to then try a different rom to see if that in turn fixes the issue.
Ebicoustic said:
That would be perfect! Only problem is that it requires root access on the phone which I am unable to obtain because I cannot access the phone. Is there a way to root the phone without having to connect it via the computer? Something like an update.zip with files able to be flashed through android recovery 3e? If I can get root access than wireless adb would be perfect.
*ultimately if I could remove signature checking in Android Recovery 3e that would work so I could in turn try to root the phone and install a different recovery to then try a different rom to see if that in turn fixes the issue.
Click to expand...
Click to collapse
You might be able to download your rom of choice and rename it update.zip. I'm not sure if it will flash though....someone else chime in if I'm wrong. You can use wireless file transfer if needed.
Sent from my Nexus S 4G using XDA
Yea I've tried that, everything gets shot down by the recovery with a E:Signature Verification Failed. Thank you for your help so far but I don't think this is something that is going to be helped. I've put in a ticket to Samsung for a repair under it's warranty. In the past I've sent in a rooted phone and they've fixed it so I think I'm going to give that a shot. Just don't want to be without a phone for 2+ weeks.
Well good luck...you are running stock unrooted so it shouldn't matter. It is a dev phone for damn sake. Sorry couldn't help.
Sent from my Nexus S 4G using XDA
Well if you want to download a custom rom... Since you are on this forum. Download any rom (preferably CM9 since its quite good from my experience). Flash the stable version and wait till everything is completed. Now when you flash make sure you download a recovery...eg ClockWorkMod Recovery from google market. You should now have a custom rom installed and download wireless adb as chappy said. See if that works
Basically what had happened was I was out on Friday night, drunkenly gave my phone to my friend to keep safe, and then totally forget about it. Fast forward to me panicking and immediately setting a password lock using Android Device Manager. For some reason when setting a password remotely from your PC it can be as long as you want, but when typing it in my phone there was a limit, meaning I could not get in.
Why don't you just use ADM again to reset your password and put a new one?! Well apparently they don't let you form a new password once there is one already locked on your phone. Why don't you try unlocking it via findyoursamsung?! I didn't create a samsung account when prompted to. (hindsight is 20/20)
I also tried some other third-party backup apps such as Kies3 and Samsung Watch, both of which required the phone to be unlocked to function - which is also why I can't simply just connect my phone via USB and drag the data into a folder.
This lead me to doing a ton of research and it seemed the only way to get my pictures and videos back without resetting my phone would be through those coding programs and ADB and such. I am not well versed in this area at all so I looked at a bunch of sites explaining what to do.
From my limited understanding, it came down to a few things:
- My device is a Samsung Galaxy S4, probably kit kat or jelly bean. It is neither rooted nor does it have the "USB debugging" enabled
- I have successfully installed CWM (clockwork mod) and ADB (android debugging bridge) onto my computer/phone because apparently when CWM goes into recovery mode, the debugging is automatically enabled, where I'd then be able to unlock the screen (but I don't seem to know how to input adb commands - where would I do this?!)
- I installed a few other programs that were of no use to me because I had (almost) no idea how to use them (Cygwin, Odin, JOdin3, Heimdall) in conjunction with ADB and the "Download" mode on my phone to flash CWM to be my "custom Recovery" instead of the stock recovery
- I saw there were some third party apps that would automatically (?) unlock your phone screen for you but I wasn't too keen on trusting them seeing as most of thm were outdated , so unless you guys recommend one I would rather not download those
- I think my main issue is not knowing how to simply bring up a terminal and input commands but sometimes they wouldn't even recognize my device (probably because USB debugging is disabled)
I have been infront of my computer for almost a whole day now trying everything and reading everything simply trying to figure out what to do. I have looked at way too many guides and could probably recite them to you. I guess the point of this is I really would prefer not to lose this data as it has a lot of sentimental value, so I'm straying away from those methods that require you to wipe your phone. If any of you know any helpful sites or guides (I probably have seen them) that explains things very formally and easy to understand, let me know, I will be forever gracious for your help.
XDA Visitor said:
Basically what had happened was I was out on Friday night, drunkenly gave my phone to my friend to keep safe, and then totally forget about it. Fast forward to me panicking and immediately setting a password lock using Android Device Manager. For some reason when setting a password remotely from your PC it can be as long as you want, but when typing it in my phone there was a limit, meaning I could not get in.
Why don't you just use ADM again to reset your password and put a new one?! Well apparently they don't let you form a new password once there is one already locked on your phone. Why don't you try unlocking it via findyoursamsung?! I didn't create a samsung account when prompted to. (hindsight is 20/20)
I also tried some other third-party backup apps such as Kies3 and Samsung Watch, both of which required the phone to be unlocked to function - which is also why I can't simply just connect my phone via USB and drag the data into a folder.
This lead me to doing a ton of research and it seemed the only way to get my pictures and videos back without resetting my phone would be through those coding programs and ADB and such. I am not well versed in this area at all so I looked at a bunch of sites explaining what to do.
From my limited understanding, it came down to a few things:
- My device is a Samsung Galaxy S4, probably kit kat or jelly bean. It is neither rooted nor does it have the "USB debugging" enabled
- I have successfully installed CWM (clockwork mod) and ADB (android debugging bridge) onto my computer/phone because apparently when CWM goes into recovery mode, the debugging is automatically enabled, where I'd then be able to unlock the screen (but I don't seem to know how to input adb commands - where would I do this?!)
- I installed a few other programs that were of no use to me because I had (almost) no idea how to use them (Cygwin, Odin, JOdin3, Heimdall) in conjunction with ADB and the "Download" mode on my phone to flash CWM to be my "custom Recovery" instead of the stock recovery
- I saw there were some third party apps that would automatically (?) unlock your phone screen for you but I wasn't too keen on trusting them seeing as most of thm were outdated , so unless you guys recommend one I would rather not download those
- I think my main issue is not knowing how to simply bring up a terminal and input commands but sometimes they wouldn't even recognize my device (probably because USB debugging is disabled)
I have been infront of my computer for almost a whole day now trying everything and reading everything simply trying to figure out what to do. I have looked at way too many guides and could probably recite them to you. I guess the point of this is I really would prefer not to lose this data as it has a lot of sentimental value, so I'm straying away from those methods that require you to wipe your phone. If any of you know any helpful sites or guides (I probably have seen them) that explains things very formally and easy to understand, let me know, I will be forever gracious for your help.
Click to expand...
Click to collapse
Hello, and welcome to XDA!
A bit of a doozy....
This thread may help:
> Samsung Galaxy S 4 i9500, i9505, i9505G, i9506 > Galaxy S 4 Q&A, Help & Troubleshooting > [RESOLVED] HELP please!! Unable to unlock device locked by Google Device Manager
May need to modify solution two to use under CWM. That is, mount data via adb (or via recovery if there's an option) before issuing (the rest of) the adb commands.
By the way, here is a primer to adb:
http://www.xda-developers.com/all-in-one-guide-to-adb/
Hope this helps, and good luck!
Hi
TF300T JB 4.2.1
Bought new in the US in 2013 so has US SKU. Originally for my wife, but she now has an iPad Pro so I've got the hand-me-down!
Wiped it and unlocked the device successfully using the Asus V8 utility. Tried to flash TWRP from Win7 computer but something went wrong. The interface was still there, it would boot up okay but there was no sign of TWRP. Eventually, I went into fastboot and selected RCK. Nothing happened except the icon turned brown and just sat there. Then I tried a factory reset but it wouldn't have any, nor a cold boot. In desperation I turned the device off and tried to reboot. The initial "Asus" screen came up ("This device is unlocked" in top left-hand corner and the 'Nividia Tegra' logo in bottom right. No spinning circle of dots). It won't boot into fastboot, in fact the volume keys are totally unresponsive. On/off will turn off the device, but it immediately boots back to the same Asus screen. It's not recognised by the Win7 computer so I can't flash anything to it. I think I've tried everything this forum (and a few lesser ones!) could suggest, to no avail.
I believe I now have the proverbial 'bricked' tablet.
Nothing daunted, and not prepared to involve Asus support, I'm considering swapping the motherboard (I've done a couple on Windows computers) but will this bring my TF300T back to life, or is there more I need to do?
I'm no expert on the Android OS so any help from you experts would be much appreciated.
Thanks in advance.
Anyone?
I know the TF300 is a bit long in the tooth now, but all I want to know is whether a bricked one can be recovered by replacing the motherboard. There must be someone out there who has done the replacement and can advise me? Also, I apologise if this in in the wrong section, I guess it should have been in the 'Help' section, but I didn't realise until I'd posted it.
capelyddol said:
Hi
TF300T JB 4.2.1
I'm considering swapping the motherboard (I've done a couple on Windows computers) but will this bring my TF300T back to life, or is there more I need to do?
Click to expand...
Click to collapse
Of course, exchange the MB will bring back your device to life. But it is really the last option.
Firstly you have to check patiently if you can get access into your device. Therefore read mindfully this thread:
https://forum.xda-developers.com/showthread.php?t=2396072
"The solution by @Buster99 is for those who:
- flashed the wrong recovery, and wiped data
- are able to boot into recovery, but cannot flash anything
- no adb access (although, if you DO have adb access, this will still work for you...)"
Hopefully my advise will help you! Don't forget to thank @Buster99
ebonit said:
Of course, exchange the MB will bring back your device to life. But it is really the last option.
Firstly you have to check patiently if you can get access into your device. Therefore read mindfully this thread:
https://forum.xda-developers.com/showthread.php?t=2396072
"The solution by @Buster99 is for those who:
- flashed the wrong recovery, and wiped data
- are able to boot into recovery, but cannot flash anything
- no adb access (although, if you DO have adb access, this will still work for you...)"
Hopefully my advise will help you! Don't forget to thank @Buster99
Click to expand...
Click to collapse
ebonit ~ many thanks for your response. Unfortunately, I really don't think there's any way I can get access. The initial boot-up screen is all I get, in perpetual loop. The only way to shut it down is reset with vol-up., though it's possible it may be in some sort of variation of apx mode at this point as the screen is blank. I've no way of knowing as my win 7 computer only acknowledges an 'unknown device' at that point, and nothing when the initial boot screen is there. Vol-down doesn't seem to have any effect at all. Windows has already installed the drivers so won't re-install, or uninstall them as it's 'unknown'. I did once manage to get it recognised as an 'apx device' but with an '!' (not sure how I did it as I haven't been able to replicate it since!) but I don't think that helps me even if I could replicate it without the '!', Nvflash requires I have the necessary back-up files, which of course I don't. I don't know where to go from here except to replace the motherboard. Once I get the device apart I may try disconnecting the battery, vol-down, and reconnect, to try booting to recovery, but I'm not optimistic of that working.
I'll certainly be very happy to consider any other suggestions you, or anyone else, may have.
I tried Buster99's method, but as my TF300T isn't recognised by Windows that was a non-starter.
Once again, many thanks for your input.
capelyddol
(John)
capelyddol said:
ebonit ~ many thanks for your response. Unfortunately, I really don't think there's any way I can get access.
Click to expand...
Click to collapse
I'm sorry, but if you are really sure that you cannot boot into either fastboot or recovery the tablet is bricked for good!
In this case to replace the mainboard will be the last option to get the tablet back to life. There is a very good instruction with pictures by @huebinger that shows you what to do exactly: https://forum.xda-developers.com/showthread.php?t=2368372 (BTW, that's what I did many years ago!!!)
On ebay.com you may find a used one:
https://www.ebay.com/itm/GENUINE-AS...863174?hash=item54321ab206:g:lrcAAOSwjXRXcHSB
ebonit said:
I'm sorry, but if you are really sure that you cannot boot into either fastboot or recovery the tablet is bricked for good!
In this case to replace the mainboard will be the last option to get the tablet back to life. There is a very good instruction with pictures by @huebinger that shows you what to do exactly: https://forum.xda-developers.com/showthread.php?t=2368372 (BTW, that's what I did many years ago!!!)
On ebay.com you may find a used one:
https://www.ebay.com/itm/GENUINE-AS...863174?hash=item54321ab206:g:lrcAAOSwjXRXcHSB
Click to expand...
Click to collapse
ebonit ~ Thanks for the links. I checked out huebinger's and pulled my motherboard out, then bought the one you linked to on eBay. Hopefully, I didn't do any damage getting the MB out. I'm more used to the tough old internal wiring of desktop computers!
I'd already backed up the data and done a factory reset before I began my abortive attempts at rooting so hopefully I'll be starting with a clean slate once I get the new board installed. It's going to take a while to cross the pond to France, but I'll report on how it goes once it arrives.
Thanks again for your help, it's much appreciated.
John.
(capelyddol)
Hello,
My tf300t got bricked while upgrading twrp.
nothing helped, i put away the tablet, after a year i found her ... so i said to myself "why not" ?! so i ordered from ebay a motherboard, and it's work like a charm, but the tablet is old now ;0
now i want to setup a lite rom ....
mitomon said:
Hello, now i want to setup a lite rom ....
Click to expand...
Click to collapse
What do you mean?
What do you mean?
Click to expand...
Click to collapse
I was wondering that, too!
It's good to know the s/h motherboard cured his tablet's ills, though.
My replacement motherboard arrived yesterday and is installed, up, and running.
Android Ver: 4.2.1
Build No: US_epad - 10.6.1.27.5
I downloaded the v8 unlock device app and unlocked the tab.
I've downloaded:
1) djibe Transformer Pad TF300T pack v3
2)KatKiss -7.1_TF300T_029
3) open-gapps-arm-7.1-pico-20180517
I have a 32g microSD formated to FAT32 installed in the tablet.
All as per djibe89's tutorial here: https://forum.xda-developers.com/transformer-tf300t/general/guide-asus-transformer-pad-tf300t-stock-t3554744
My 'versions' are identical with djibe89's except for the BT version which is 11.38, not 10.38. Hopefully that'll not affect anything!
At this point I run into problems:
1) My USB link between the win 7 (32-bit) computer and the tablet is iffy. Sometimes it works for a while, but I frequently get the "USB device Not Recognized" with a useless MS message not worth clicking on. I'm wondering if there's a more reliable way to transfer files? Airdroid, possibly? Losing connection during file transference doesn't bear thinking about.
2)
Go to folder /Universal Naked Drivers 0.72 you unziped at start on your Desktop.
Select file android_apxusb.inf, then right click -> Install.
Force driver install and wait until a success message prompts.
Repeat operation with android_winusb.inf .
Click to expand...
Click to collapse
I tried installing these drivers by both right-click-> Install and also CMD. -to no avail. I get a Windows message saying the best drivers for the device are already installed, but the tab still isn't recognized. Oh, yes it is! Ooops, now it isn't! ad infinitum, I'm guessing.
Can anyone advise how to overcome this or I can see myself keeping the used motherboard salesmen in Mercedes for the next decade! :crying:
3) Assuming I can overcome the iffy USB problem: should I use TWRP Kang 2.8.7.2 or TWRP 3.2?
I guess that's enough problems for now. I hope ebonit or some other expert can assist with this as I really want to get this tab rooted.
Thanks
John.
(capelyddol)
capelyddol said:
My replacement motherboard arrived yesterday and is installed, up, and running.
Android Ver: 4.2.1
Build No: US_epad - 10.6.1.27.5
Click to expand...
Click to collapse
Congratulations! You did a good job. Thanks for your report.
First of all, to avoid any issues to get your device on N 7.1 Nougatella please follow exactly Tim's install instruction step by step in post #1. https://forum.xda-developers.com/transformer-tf300t/development/rom-t3453702
You need Kang TWRP as advised by Tim. Don't forget to format data through Kang TWRP before. It takes up to one hour. Then change file system to F2FS for data only no cache and system. Successfully done your device is now ready to install Rom, pico Gapps and SuperSU fresh downloaded via Tim's links there.
PS: About your USB issue take another USB port on your PC not via hub!
Good luck!
Three days with nothing from me, you'd be excused for thinking either I was dead, or my tab was! Thankfully, neither. In fact - SUCCESS!!! We're both alive and well, and for the tablet at least, performing better than ever.
TWRP installation took me two days. First, the computer (Win 7 32-bit) refused to recognize the TF300T and 'fastboot' could have been renamed 'nerverboot'. Strangely, the whole business seemed to evolve over time. Persistence was the name of the game - trying different USB ports, booting and rebooting (both tab and desktop). Eventually I found Snoop05's '15 seconds ADB Installer v1.4.3' https://forum.xda-developers.com/showthread.php?t=2588979 and with that I began to make progress...slowly!
Code:
fastboot devices
returned '???????????????' over and over again. By uplugging/plugging the cable into the tablet a few times I suddenly got a nice long string of letters and numbers. It came and went a few times but after a while seemed to stabilize till I felt ready for the big push of TWRP. I got so many error messages: 'can't find twrp.img' (I'd renamed it); 'can't open twrp.img'; 'insufficient memory', etc, etc.. Suddenly, it worked. It took just over eight seconds to download the 6.95MB. Booting into recovery was rather heart-stopping, but it came up a treat.
After that it was relatively simple to set up the TWRP (I found Djibe89's guide https://forum.xda-developers.com/transformer-tf300t/general/guide-asus-transformer-pad-tf300t-stock-t3554744 especially useful and there's a copy in the -djibe Transformer Pad TF300T pack v3' http://bit.ly/djibe-tf300t-v3.
Flashing KatKiss 7.1_TF300T_029, open_gapps-arm7.1-pico, and SuperSU-v2.82 from the microSD I'd copied them to went like a dream and before I knew it the old tab was humming with life once more. I'm a very happy chappy!
I have just two queries (so far ) 1. djibe89 mentions the file 'deviceID.apk' but Tim doesn't. Is it still necessary? I believe it's to keep Google happy, but I've no problems downloading from the Play Store, so I've not installed it as yet.
2) While installing the 'Battery Calibration' app it briefly stated that the tab wasn't rooted. I assume if I've achieved all the above, then it must be?
Now I'm going to play. No doubt I'll be back with a few more queries before too long!
Special thanks to ebonit for his help and support.
capelyddol said:
My replacement motherboard arrived yesterday and is installed, up, and running.
Android Ver: 4.2.1
Build No: US_epad - 10.6.1.27.5
I downloaded the v8 unlock device app and unlocked the tab.
I've downloaded:
1) djibe Transformer Pad TF300T pack v3
2)KatKiss -7.1_TF300T_029
3) open-gapps-arm-7.1-pico-20180517
I have a 32g microSD formated to FAT32 installed in the tablet.
All as per djibe89's tutorial here: https://forum.xda-developers.com/transformer-tf300t/general/guide-asus-transformer-pad-tf300t-stock-t3554744
My 'versions' are identical with djibe89's except for the BT version which is 11.38, not 10.38. Hopefully that'll not affect anything!
At this point I run into problems:
1) My USB link between the win 7 (32-bit) computer and the tablet is iffy. Sometimes it works for a while, but I frequently get the "USB device Not Recognized" with a useless MS message not worth clicking on. I'm wondering if there's a more reliable way to transfer files? Airdroid, possibly? Losing connection during file transference doesn't bear thinking about.
2)
I tried installing these drivers by both right-click-> Install and also CMD. -to no avail. I get a Windows message saying the best drivers for the device are already installed, but the tab still isn't recognized. Oh, yes it is! Ooops, now it isn't! ad infinitum, I'm guessing.
Can anyone advise how to overcome this or I can see myself keeping the used motherboard salesmen in Mercedes for the next decade! :crying:
3) Assuming I can overcome the iffy USB problem: should I use TWRP Kang 2.8.7.2 or TWRP 3.2?
I guess that's enough problems for now. I hope ebonit or some other expert can assist with this as I really want to get this tab rooted.
Thanks
John.
(capelyddol)
Click to expand...
Click to collapse
hi ,
you said that you succeeded to unlock the tablet ?
how ?!
i tried with unlocker v7 and 8 , i got the network error.
my tf330t is on 4.2.1.
i try hard reset, nothing helped.
i changed the mb, succeeded to root with motochopper.
please , i need help.
thanks
mitomon said:
I tried with unlocker v7 and 8 , i got the network error. My tf330t is on 4.2.1.
Click to expand...
Click to collapse
To avoid any issues please reinstall your system by doing a Buster99 https://forum.xda-developers.com/showpost.php?p=44244313&postcount=12. Be sure you have the latest firmware "WW_epad-user-10.6.1.27.5"
After that delete your Google account. Then you may unlock your device with V7.
capelyddol said:
TWRP installation took me two days. Eventually I found Snoop05's '15 seconds ADB Installer v1.4.3' https://forum.xda-developers.com/showthread.php?t=2588979 and with that I began to make progress...slowly!
Click to expand...
Click to collapse
Hope you have Kang TWRP now as required by Tim in post #1!
I'm sorry, but you never mentioned that you cannot access your Tablet via ADB. Therefore please note, the best ADB tool, every Android user may have on his PC, is "Minimal ADB & Fastboot" https://forum.xda-developers.com/showthread.php?t=2317790.
BTW, the answer to your first question is nope, you don't need it. The answer to your second one is yes the device is rooted. However check the update status of your SuperSU. Hope you did fresh download Rom, Apps and SuperSU via Tim's links in post #1 of the Nougatella thread?
I have installed Kang TWRP 2.8.7.2 as per Timduru's link. My tab was wiped before installation so all apps were fresh downloads. SuperSU was 'UPDATE-SuperSU-v2.82-20170528234214.zip' again, as per Timduru's link, as was the ROM ' KatKiss-7.1_TF300T_030.zip'. Many thanks for pointing me to 'Minimal ADB & Fastboot' which I've now installed for future use. And many thanks for all your other help. No doubt I'll be back for more!
capelyddol said:
My tab was wiped before installation so all apps were fresh downloads. Many thanks for pointing me to 'Minimal ADB & Fastboot' which I've now installed for future use. And many thanks for all your other help. No doubt I'll be back for more!
Click to expand...
Click to collapse
You are welcome! It's good to hear that you did such a good job. Using the thanks button is always greatly appreciated.
Please note, if you have any issues or you are changing the Android system, Format /data through Kang TWRP is always required. Format /data is more than wipe (you did wipe!) or factory reset. It takes up to 1 hour to be successfully. After that your system is really clean.
"Warning: formatting will remove what is stored in your internal storage, so store the rom /gapps/supersu zips onto an external storage (microSD, SD card..) or make sure you know how to push them back through adb." advised by Tim in post #1.