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Sorry, this is likely a noob question. I am working to flash a new rom on my ATT HTC One (cant stand all the ATT BS). I was trying to get the Android_Revolution_HD-One_12.0 working. I have unlocked the phone, and flashed a custom recovery image (stock image linked here http://forum.xda-developers.com/showthread.php?t=2224752) The boot loader now shows unlocked and tampered. Next I attempted to enter the recovery mode, when I select it the phone appears to reboot then shows me a pic of a phone with the green circle of arrows on it for a few secs then pic of a phone with a red exclamation mark. After a few minutes the phone will then reboot and run normally.
I have tried:
1) 'fastboot erase cache' prior to entering recovery
2) adb reboot recovery command
3) GooManager to load TWRP, which it did, but it will not load a rom (says its starting then nothing happens) or reboot into recovery (nothing happens)
All of these result in nothing happening or the same phone with green circle, then phone with red exclamation... I have not been able to access the recovery menu... any other ideas, or am I missing something
Thanks
T
bluecoller33 said:
Sorry, this is likely a noob question. I am working to flash a new rom on my ATT HTC One (cant stand all the ATT BS). I was trying to get the Android_Revolution_HD-One_12.0 working. I have unlocked the phone, and flashed a custom recovery image (stock image linked here http://forum.xda-developers.com/showthread.php?t=2224752) The boot loader now shows unlocked and tampered. Next I attempted to enter the recovery mode, when I select it the phone appears to reboot then shows me a pic of a phone with the green circle of arrows on it for a few secs then pic of a phone with a red exclamation mark. After a few minutes the phone will then reboot and run normally.
I have tried:
1) 'fastboot erase cache' prior to entering recovery
2) adb reboot recovery command
3) GooManager to load TWRP, which it did, but it will not load a rom (says its starting then nothing happens) or reboot into recovery (nothing happens)
All of these result in nothing happening or the same phone with green circle, then phone with red exclamation... I have not been able to access the recovery menu... any other ideas, or am I missing something
Thanks
T
Click to expand...
Click to collapse
I think your trying to flash the stock recovery image. You need to flash either TWRP or CWM custom recoveries. GO to this link and at the bottom it will show the commands to install TWRP from fastboot. It will also give you the link for the newest version of twrp, which is 2.6.0.0 i believe,
http://forum.xda-developers.com/showpost.php?p=42556698&postcount=24958
Hope it helps
Jmarv said:
I think your trying to flash the stock recovery image. You need to flash either TWRP or CWM custom recoveries. GO to this link and at the bottom it will show the commands to install TWRP from fastboot. It will also give you the link for the newest version of twrp, which is 2.6.0.0 i believe,
http://forum.xda-developers.com/showpost.php?p=42556698&postcount=24958
Hope it helps
Click to expand...
Click to collapse
Exactly as he said above. Download twrp (I stuck with 2.3.3.1 bc 2.5 was having problems flashing ROMs)
Put the twrp file in your folder that has fastbootand launch a CMD window (hold shift and right click, there will be an option to launch a CMD window)
Boot into the bootloader and then fastboot (be sure your phone says Fastboot USB)
on the command terminal type:
fastboot devices -- to make sure your device is being recognized (should say HTXXXXXXXXXXXXXX)
fastboot erase cache -- clears cache
fastboot flash recovery recovery.img (recovery.img is the name of the twrp file you downloaded EXACTLY)
Worked like a Champ, thanks for the help. I loaded twrp and the rom installed without a hitch. This phone us definitely faster now that all of the att crappie is gone.
My TF201 was fine with stock 4.1.1 installed. I didn't have to enter a password to open it. Pressing power button was enough to reach the home screen.
I decided to install Nougat so I followed the thread "from stock to nougat" step by step (which is a great threat btw) but, of course, something went wrong.
I need help with getting the device out of the current status, which is :
- Only TWRP 2.6.3.0 is installed. I press Down + Power but no '3 icons' appear anymore.
- When I enter TWRP I get asked for a password. I highly doubt that I've (ever) set a password but somehow the device is now encrypted (?) / password protected. I can bypass the password screen by simply clicking 'cancel' but still can't mount anything inside TWRP, not system or external sd card, nor can I unzip / flash a Rom.
Before TWRP (this morning) HairyBean recovery was installed, but I couldn't flash anything there either, it ended always in an "can't unzip" error.
The good news is when connected to Win10 I have a working fastboot and adb connection !
What should be the next step to solve this (and to reach Nougat) ? How can I get the 3 icons back ?
You have the wrong TWRP installed for Nougat v7.1, you have to be on TWRP 2.8.0.0 or higher. You should flash the highest version available to date. LATEST TWRP: https://androidfilehost.com/?fid=457095661767150802
The BIG question is, what BOOTLOADER are you on? I think you have to be on bootloader version 10.6.1.27.1 to get the TWRP to work.
NP
Nektopoli said:
You have the wrong TWRP installed for Nougat v7.1, you have to be on TWRP 2.8.0.0 or higher. You should flash the highest version available to date. LATEST TWRP: https://androidfilehost.com/?fid=457095661767150802
The BIG question is, what BOOTLOADER are you on? I think you have to be on bootloader version 10.6.1.27.1 to get the TWRP to work.
Click to expand...
Click to collapse
Last bootloader is from the HairyBean-Upgrade zip :
Upgrade+Hairybean+2.31+(4.2.1)+Bootloader+&+TWRP+( 2.5).zip
But again, I couldn't flash anything either. It all ended with "can't unzip" error.
Right now, I can't boot into fastboot. The device always boots into TWRP 2.6.3.0.
I did the steps on this page : [HOW-TO] Unbrick your Transformer Prime (or not) by Diamondback
- Type: "adb shell"
- You should see a "#" now
- Once you have that "#", please type: dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1 and press [Enter]
- Now type: dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1 and press [Enter]
- Exit the shell and reboot your Prime via CWM
- It should not reboot to CWM automatically now. It either boots your ROM or is stuck at the splash screen. If it is stuck, boot to recovery and install any ROM you want.
Click to expand...
Click to collapse
but the result is the same, the device ONLY boots into TWRP (and asks for a password).
Without being able to boot into fastboot, how can I install the latest TWRP ?
So holding the VOL bottom down when turning on the tablet doesn't bring to the screen with: [RCK] [ANDRIOD] [WIPE DATE] choices in the middle?
NP
Nektopoli said:
So holding the VOL bottom down when turning on the tablet doesn't bring to the screen with: [RCK] [ANDRIOD] [WIPE DATE] choices in the middle?
NP
Click to expand...
Click to collapse
No. But I can send "adb reboot bootloader", and then it comes up after reboot.
So I've tried 2-3 times to flash recovery with :
fastboot flash recovery twrp-3.1.0-1-tf201t.img
but it always hangs at "writing 'recovery' ".
The device freezes.
Any suggestions what I should do now ?
msegmx said:
No. But I can send "adb reboot bootloader", and then it comes up after reboot.
So I've tried 2-3 times to flash recovery with :
fastboot flash recovery twrp-3.1.0-1-tf201t.img
but it always hangs at "writing 'recovery' ".
The device freezes.
Any suggestions what I should do now ?
Click to expand...
Click to collapse
Btw, bootloader is "WW_epad-10.6.1.27.1-20130711".
Have to tried renaming the TWRP.img file "TWRP.blob" then;
fastboot -i 0x0B05 flash recovery c:\adb\TF201t\TWRP.blob (you will need the to input the location of the file on you computer, that is where I flashed mine from) also did you wipe the recovery partition?
NP
https://forum.xda-developers.com/showthread.php?t=2038464
Nektopoli said:
Have to tried renaming the TWRP.img file "TWRP.blob" then;
fastboot -i 0x0B05 flash recovery c:\adb\TF201t\TWRP.blob (you will need the to input the location of the file on you computer, that is where I flashed mine from) also did you wipe the recovery partition?
NP
https://forum.xda-developers.com/showthread.php?t=2038464
Click to expand...
Click to collapse
Two questions before I totally brick my TF201 :
1) how to I wipe recovery partition ? (note: In fastboot mode, is it the third 'wipe data' icon ? does that wipe recovery, too ?)
2) the page says "THIS LINK IS FOR TF201 RUNNING JB BOOTLOADER ONLY! DO NOT USE IT IF YOU ARE NOT SURE WHAT YOU ARE RUNNING STOP NOW!".
How can I be sure what bootloader I'm on ?
(the text at the top of the page where the 3 icons are says :
HTML:
Key driver not found.. Booting OS
Android cardhU-user bootloader <1.00 e> released by "WW_epad-10.6.1.27.1-20130711" A03
Starting Fastboot USB download protocol
WW_epad-10.6.1.27.1 - 20130771 A03 is the JB bootloader, same one I'm on. You just have to wipe the recovery partition using adb command;
fastboot erase recovery
Then
fastboot -i 0x0B05 flash recovery c:\TWRP.blob
Once you get the TWRP from the link working you can flash the new ROM using the TWRP recovery console.
NP
msegmx said:
Two questions before I totally brick my TF201 :
1) how to I wipe recovery partition ? (note: In fastboot mode, is it the third 'wipe data' icon ? does that wipe recovery, too ?)
2) the page says "THIS LINK IS FOR TF201 RUNNING JB BOOTLOADER ONLY! DO NOT USE IT IF YOU ARE NOT SURE WHAT YOU ARE RUNNING STOP NOW!".
How can I be sure what bootloader I'm on ?
(the text at the top of the page where the 3 icons are says :
HTML:
Key driver not found.. Booting OS
Android cardhU-user bootloader <1.00 e> released by "WW_epad-10.6.1.27.1-20130711" A03
Starting Fastboot USB download protocol
Click to expand...
Click to collapse
Nektopoli said:
WW_epad-10.6.1.27.1 - 20130771 A03 is the JB bootloader, same one I'm on. You just have to wipe the recovery partition using adb command;
fastboot erase recovery
Then
fastboot -i 0x0B05 flash recovery c:\TWRP.blob
Once you get the TWRP from the link working you can flash the new ROM using the TWRP recovery console.
NP
Click to expand...
Click to collapse
I've tried many things, but right now when I try to enter recovery it says in red "unrecoverable bootloader error (0x0000000)"
fastboot erase system <- this end with an OK
fastboot erase recovery <- this doesn't end at all, command never ends
fastboot erase misc <- same as "erase recovery", doesn't end
flashing any blob, or any file doesn't end. Flashing blob says "sending.." and then doesn't continue, it is stuck there.
I also put the zip from inside the Asus blob zip onto an SD card, but since I don't have a recovery I can't start the process. -> unrecoverable bootloader error
So whatever I tried, it doesn't succeed. Either the tablet is stuck (the green RCK icon stops blinking) or it does nothing at all, for example after issuing a "fastboot flash recovery.." command, it just blinks the whole time and nothing happens.
The only successful commands are (so far) "fastboot reboot-bootloader" and "fastboot erase system".
Any suggestions are welcome..
Ok, good news, I have TWRP 3.1.0-1 installed.
I had the SD Card inside the tablet. the "unrecoverable bootloader error" was on screen.
The filename inside SD card is "EP201_SDUPDATE.zip".
So I did a Volume Down Button + Power button long press (as I did so many times before) and rebooted the tablet.. and somehow it recognized the zip file and started updating the system.
So, an Android robot appeared with a scroll-bar beneath it, and the the Android robot changed to a dead one with a red X on it.
After rebooting the tablet again I saw 4 icons, so that is the ICS bootloader, right ? at the top it says now "WW_epad-10.4.2.18-20121122" A03
Nevertheless I just flashed the latest TWRP through fastboot command.
Next I'll try to install a custom Rom.
But before that, do I need HairyBean recovery or bootloader first ?
Edit : I followed the steps here and everythning went fine so far. The tab is rebooting right now.
Thanks for your help !!
I'm using KatKiss 7.1.2 on my TF201 found here
https://forum.xda-developers.com/transformer-prime/development/rom-katkiss-nougat-t3459313
NP
---------- Post added at 04:04 PM ---------- Previous post was at 03:52 PM ----------
msegmx said:
Ok, good news, I have TWRP 3.1.0-1 installed.
I had the SD Card inside the tablet. the "unrecoverable bootloader error" was on screen.
The filename inside SD card is "EP201_SDUPDATE.zip".
So I did a Volume Down Button + Power button long press (as I did so many times before) and rebooted the tablet.. and somehow it recognized the zip file and started updating the system.
So, an Android robot appeared with a scroll-bar beneath it, and the the Android robot changed to a dead one with a red X on it.
After rebooting the tablet again I saw 4 icons, so that is the ICS bootloader, right ? at the top it says now "WW_epad-10.4.2.18-20121122" A03
Nevertheless I just flashed the latest TWRP through fastboot command.
Next I'll try to install a custom Rom.
But before that, do I need HairyBean recovery or bootloader first ?
Edit : I followed the steps here and everythning went fine so far. The tab is rebooting right now.
Thanks for your help !!
Click to expand...
Click to collapse
You know need to install the JB bootloader but you're fine with TWRP,
The correct bootloader for the ROM is: WW_epad-10.6.1.27.1 - 20130771 A03
NP
Goal would be to get latest TWRP and LineageOS on it. It flashes twrp "fastboot flash recovery twrp.img:" ok but but not sure how to get it into recovery from there. When I go "fastboot reboot" it goes back to the OnePlus logo. Same when I try either VolUP + PWR or VolDWN + PWR. Also when I try flashing the zip of lineageos using "fastboot flash zip lineage.zip" I get the error "FAILED (remote: partition table doesn't exist)". Not really sure what to do next.
PS: Even just getting it back to stock would be good start. I tried flashing the stock rom but got the same partition error.
Update: I was able to get it working with help from here
The first link for the recovery tool is broken but down below there is a minimal version which works. It gave me bootloader capability, then I was able to adb sideload the stock rom. My OPX is alive again!
Hello
I wanted to speed up the TF201 with the help of the Kernel Adjutor. Something went wrong and after a series of frustrated attempts the only thing I get after starting the TF 201 are
- the ASUS /nvidia screen with the message "the device is unlocked"
- 4 penguins with a text "3.xxxxx message length: 9" (xxxxx being random numbers)
- the blue "teamwin" screen.
I cannot get into any other screen by pressing the volume up or down.
In June 2017 I have installed KatKiss 7.1 v023 following your tutorial. I have also made the backup recommended there.
How do I have to proceed to get the TF201 back to normal ?
Thank you very much for your help.
SwissJames
You might have to bring it back using a PC/Laptop along with Minimal ADB and Fastboot, you would have to wipe it and in the process loss everything.
Is your back-up on an external media like the micro SD or SD card?
NP
Hello Nektopoli
Thanks for your support.
backup files "bricksafe.img", "factory-config.img" and "unlock-token.img" are on the PC.
I still have the original files on micro SD from the upgrade to Android 7.1 Nougat as described in the tutorial.
After much research and many unsuccessful tries, it seems that I get lucky with lj50036's post: https://forum.xda-developers.com/showthread.php?t=2538028. After following his instructions it I was able to boot into fastboot.
At the step "fastboot -w" I got stuck: erasing cache "Command write failed <unknown error>"
So I closed the terminal and opened a new one (as described).
"fastboot erase boot" failed again "Command write failed <unknown error>"
Restarting the PC fixed the issue.
I managed to get the other steps done as well.
Now the tablet is working again with Android 4.1.1.
Next I'll upgrade it back to 7.1
Regards
SwissJames
swissjames said:
Hello Nektopoli
Thanks for your support.
backup files "bricksafe.img", "factory-config.img" and "unlock-token.img" are on the PC.
I still have the original files on micro SD from the upgrade to Android 7.1 Nougat as described in the tutorial.
After much research and many unsuccessful tries, it seems that I get lucky with lj50036's post: https://forum.xda-developers.com/showthread.php?t=2538028. After following his instructions it I was able to boot into fastboot.
At the step "fastboot -w" I got stuck: erasing cache "Command write failed <unknown error>"
So I closed the terminal and opened a new one (as described).
"fastboot erase boot" failed again "Command write failed <unknown error>"
Restarting the PC fixed the issue.
I managed to get the other steps done as well.
Now the tablet is working again with Android 4.1.1.
Next I'll upgrade it back to 7.1
Regards
SwissJames
Click to expand...
Click to collapse
Have you updated the bootloader to 10.6.1.27.1 and installed the TWRP recovery console?
NP
No, not yet. As I flashed the tab with the official ASUS firmware, everything has gone. Bootloader is 10.4.2.18 and the TWRP recovery console is gone. (RCK ends up with a "dead" android...). I'll follow the latest version of the tutorial https://forum.xda-developers.com/tr...uide-tutorial-asus-transformer-prime-t3486237 to upgrade the tab.
Can you access the tablet via a computer/laptop using and ADB fastboot program like "Minimal ADB and Fastboot" https://forum.xda-developers.com/showthread.php?t=2317790
If you can, you could manually wipe the tablet, and flash JB Bootloader 10.6.1.27.1 and TWRP 2.5, then update the TWRP and install 7.1
NP
I almost got through the guide till chapter 8. Trying to install the open_gaaps-arm 7.1 pico I got the error msg "insufficient storage space available in System partition". The error log is attached.
Maybe you have an idea what I could delete on the System partition (and how). I have tried e.g. to get rid of the gmail account, but without success.
You should wipe the system partition before flashing the ROM, SuperSU and GAPPs using TWRP when you flash a new ROM
Alternatively, if you're using a PC and Fastboot to install the ROM
the: [fastboot erase system] command will wipe the system, but I don't think it will change the System partition to F2FS
NP
I have wiped all partitions before proceeding.
The size of my "system" partition after wiping is 503 MB (8 MB used) with ext4 (510 / 116 MB used with f2f). So I opted for the ext4-variant as described in the guide.
After installing KatKiss-7.1_TF201_026.zip, 433 MB are used in "system"
After installing SuperSU-v2.82.zip, 440 MB are used in "system".
So there is not enough space left for open_gaaps-arm-7.1_pico.zip with about 125 MB unzipped.
Is there a way to increase the size of the "system" partition ? (there is enough space left in the "data" partition where I could take some...)
Or do you see other options ?
Can you get back into the recovery console?
NP
yes I think so.
By pressing power and volume - I got to the selection screen and chose RCK. Now I am in TWRP again.
When you boot into the fastboot screen, the one with the RCK icon you should see the bootloader version at the top of the screen, what version is your tablet on?
this is what mine looks like
NP
it says
<1.00 e> released by "ww_epad-10.4.2.15-20120917" A03
sj
I checked the configuration of the bootloader before I began with the upgrade from 4.1. It said 10.4.2.18-20112122...
sj
What version TWRP do you have working now?
Ok, with the working TWRP you can flash the new Bootloader v10.6.1.21.1 found here;
https://androidfilehost.com/?fid=23060877490002899
This will also install TWRP 2.5 at this point we don't want to install any thing else. Once you are on the correct bootloader and TWRP 2.5 you will need to update TWRP in two steps. First to TWRP 2.8.5.1 and then to TWRP 3.1.0-1 once you have a working TWRP you can wipe the TF and flash the 7.1.2 ROM.
NP
As you suggested I downloaded the zipped file and put it on the pc and on the sd-card.
Swiped it with the twrp 3.1.0-1 from the sd-card
looked ok. Requested reboot.
The blue line appeared. It took no time at all to complete.
Now the I am on the asus-screen
reboot to get to see the version. still 10.4.2.15 with twrp 3.1.0-1
next try: installing the bootloader with cmd.exe
typed on pc: "adb devices"
response:
"list of devices attached"
"015d0787774bf603 recovery"
typed: "adb push nHairyBean_Bootloader_TWRP2.5.zip /sdcard" (the one I got from the site you indicated)
response: "1325 KB/s" etc -> looks as transferred to sdcard
on tab: "installing files.."
"done..."
"now please restart..."
"updating partition details..."
"...done"
reboot to get to see the version.
screen says
"OS will cold boot in 10 seconds if no input is detected"
"booting recovery kernel image"
Version is still 10.4.2.15 with twrp 3.1.0-1
That is so bizarre that it wont update the bootloader or downgrade the TWRP.
One way to fix this is to do a FULL "adb wipe"
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
This will wipe the complete table back to nothing.
Then:> adb push nHairyBean_Bootloader_TWRP2.5.zip /sdcard
This should get you on the correct bootloader and TWRP, after this boot into fastboot to confirm you're on the correct bootloader then flash 3.1.0-1
NP
I did what you suggested and erased all the files ->worked well.
Then "adb push nHairyBean_Bootloader_TWRP2.5.zip /sdcard" -> got an error: "device not found"
I restarted the tab and then clicked on the USB-symbol.
"adb devices" showed an empty list of devices attached.
"fastboot -i 0x0b05 flash recovery flatline_TF201.img" gave "OKAY" and "writing recovery"
Bootloader is still 10.4.2.15
On the tab I am now on Flatline CWM Recovery v1.0RC1
TWRP is gone.
"adb devices" shows "0123456789ABCDEF recovery"
again "adb push nHairyBean_Bootloader_TWRP2.5.zip /sdcard" success ! Data were copied.
reboot. Bootloader is still on 10.4.2.15
nBootloader should now be in the /sdcard
next intent:
"fastboot -i 0x0b05 flash recovery flatline_TF201.img" gave "OKAY" and "writing recovery"
restart, then to RCK - flatline CWM recovery
install zip from sdcard -> no files found
got in advanced - wheelie - I accept the above statement - flash androidRoot BL power off
-> blue progress line is almost empty. then progress line disappears, ASUS screen shows up.
In Flatline recovery tried "install zip from sdcard" - "choose zip from sdcard".
only "- AndroidRoot/" is shown. (no nHairyBean_Bootloader_TWRP2.5.zip). So no way of installing the nHairyBean_Bootloader-
On one hand, it seems that I am able to establish a connection between the PC and the tab when in RCK, but when in USB, the connection seems not possible.
Hmmm...
Maybe I am missing something basic in this whole thing that keeps me from progressing.
What if I use the backup-files and try to go back to the initial configuration of the TF201 ? Or are there other options with the CWM-Recovery ?
Regards sj
That sounds like the best idea, going back to the stock ROM, they can be found here; https://www.asus.com/Tablets/Eee_Pad_Transformer_Prime_TF201/HelpDesk_Download/
Download the version for you region install and see if you can get back to stock.
NP
I downloaded the file you indicated. Now how do I get it into use ?
I cannot get into APX-mode
the only program working in the tab seems to be the flatline CWM Recovery v1.0RC1.
I tried to send the zip-file with "adb sideload <filename>" Error: failed to write data 'protocol fault <no status>'
I copied the zip-file to the external sd-card, but do not see how I can access it. The sd-card mentioned on screen ("Apply update from .zip file on SD card")seems to be an internal storage.
Hi all,
I appear to have done something wrong when flashing my device with boombox and flashing twrp. I seem not to be able to access recovery so I can update my boombox rom. I have tried button combinations, I have tried fastboot boot twrp.img in bootloader which just reboots my system, I have tried booting directly from home screen using adb which registers an error and I have tried re-flashing but unfortunately I cannot access recovery.
Any way I can get into recovery without erasing my data?
Jonnibravo said:
Hi all,
I appear to have done something wrong when flashing my device with boombox and flashing twrp. I seem not to be able to access recovery so I can update my boombox rom. I have tried button combinations, I have tried fastboot boot twrp.img in bootloader which just reboots my system, I have tried booting directly from home screen using adb which registers an error and I have tried re-flashing but unfortunately I cannot access recovery.
Any way I can get into recovery without erasing my data?
Click to expand...
Click to collapse
If you're rooted, give the reboot recovery app you installed after bootloader unlock root privileges.
If not then use the exact same PC ADB commands to boot to TWRP like during bootloader unlock.
I'm confused why you mention flashing TWRP after Boombox. Surely you didn't do that. You already had TWRP.
I am rooted, Recovery reboot just reboots the phone, I have tried to get into twrp by reinstalling but again does the same things just reboots the system after the corruption warning screen. I've also tried to install from the bootloader with the fastboot boot twrp.img command but it simply says waiting for device.
Sorry turns out I was flashing the wrong file from another tutorial, I was flashing 3.1.1 instead of 3.2.1
Jonnibravo said:
Sorry turns out I was flashing the wrong file from another tutorial, I was flashing 3.1.1 instead of 3.2.1
Click to expand...
Click to collapse
Then you didn't follow my bootloader unlock and root guide. I never mention that other TWRP, much less link to it.
You're going to have to load into Download mode and use fastboot commands, but you say you couldn't get past flashing TWRP.
Uninstall the LG Mobile Driver if you have them, then reinstall.
1st, reboot into OS, then open up Device Manager and change view to Show hidden devices. You should see a new category named 'ADB Interface' and underneath that 'Fastboot Interface (Google USB ID)'.
If not, you will also see 'ADB Device' for Other Devices category:
right click that to update driver software ---> Browse my computer for driver software ---> Let me pick from a list... ---> Show all Devices ---> Have Disk ---> Browse ---> C:\Program Files (x86)\LG Electronics\LG Mobile Driver ---> 'lgandbus' ---> 'LGE ADB Mobile Interface'
Download adb/fastboot software, download Joan TWRP 3.2.1 img file and place it in adb/fastboot folder, then send your phone into Download mode:
Open up cmd and type the following after changing directory to Adb/fastboot folder: fastboot devices (see if your device is there), fastboot flash recovery TWRP.img or (whatever file is named).img, then fastboot boot TWRP.img or (whatever file is named).img