TWRP installation for Tecno pop 2f - General Questions and Answers

Hello
I have been trying to root my device Tecno pop 2f and I've only gotten as far as opening the device's bootloader but I cant seem to unlock the bootloader when entering the command fastboot OEM unlock/ fastboot flash unlock, but oddly enough the device seems to have multiple bootloaders (I don't know if that's even possible)
Developer mode has been enabled and OEM lock has been disabled when the device was on
after sorting that out...
There are 2 methods I used with adb
Method 1
1) adb devices
2) adb reboot bootloader
2) fastboot OEM unlock (error: unknown cmd)
Method 2
1) adb reboot recovery (Then I would switch to the phone to manually enter fastboot mode, which looks different than method 1)
2) fastboot OEM unlock (weirdly it works here)
3) fastboot flash recovery recovery.img (error: Flashing lock flag is locked, please unlock it first)
I'd wish to provide screenshots but I only have a single device and a crappy camera on the laptop so there's no use, please make due with this information.

Yes, an Android device indeed has 2 bootloaders - they are called first stage and second stage. The first loads the second what loads the Android OS.

If not already done yet download the "Tecno USB Drivers" provided by phone's OEM suitable to your phone and install those. Then Fastboot may work as expected.
Download and Install Tecno USB Drivers with How to Guide
Here you will find the latest Tecno USB Drivers. Download and install the latest Tecno USB Drivers on your PC before performing any task connecting your
www.getdroidtips.com

xXx yYy said:
If not already done yet download the "Tecno USB Drivers" provided by phone's OEM suitable to your phone and install those. Then Fastboot may work as expected.
Download and Install Tecno USB Drivers with How to Guide
Here you will find the latest Tecno USB Drivers. Download and install the latest Tecno USB Drivers on your PC before performing any task connecting your
www.getdroidtips.com
Click to expand...
Click to collapse
alright I'll get back to you with updates. On it

Related

Not Booting in Bootloader

I buy this phone few days ago and wanted to install cm14.1 and read the procedure all but when i try to use adb and unlock bootloader im not able to or my device not getting detect by adb it dose when i use usb tethering but i tried to reboot bootloader no luck then again i tried to boot in stock recovery and select to reboot bootloader it not getting me to fast boot screeen how i can make things go and unlock the bootloader and install twrp and install cm14.1 sorry im new to this device
vincy009 said:
I buy this phone few days ago and wanted to install cm14.1 and read the procedure all but when i try to use adb and unlock bootloader im not able to or my device not getting detect by adb it dose when i use usb tethering but i tried to reboot bootloader no luck then again i tried to boot in stock recovery and select to reboot bootloader it not getting me to fast boot screeen how i can make things go and unlock the bootloader and install twrp and install cm14.1 sorry im new to this device
Click to expand...
Click to collapse
Why choosing hard method
Install kingroot .
Root your phone.
Install flashify
Download twrp IMG
Flash it using flashify
You r done
Like if helpful
Thanks but I made it work actually the screen was in fastboot I wasn't knowing..
And about rooting kingroot is the worst way to root it dosent gives you the Complete root privilege its something like half rooted go for supersu allways
vincy009 said:
Thanks but I made it work actually the screen was in fastboot I wasn't knowing..
And about rooting kingroot is the worst way to root it dosent gives you the Complete root privilege its something like half rooted go for supersu allways
Click to expand...
Click to collapse
Half rooted like what? Example?
U have to download Universal ADB driver from XDA or Google it.
Firstly install adb drivers then download twrp 3.0.2 from twrp official site.
Put files in C:/adb/
Right Click + Shift on adb folder
Then choose command prompt
Open developer options
Enable OEM Unlocking
Enable USB debugging
Attach cable to phone
Phone will shows option
Tick and press OK
Goto command prompt
Commands
abd devices
It shows your device is connected or not
If device shows then type command
adb reboot bootloader
Device will be restarts and stuck on logo or it will shows fastboot mode
Type command
fastboot devices
Your device will be show here
Type command
device oem unlock
It shows message Okay
Your device is unlocked now
Type command
fastboot flash recovery twrp_jalebi.img ( ur twrp name)
Type command
fastboot reboot
Your device is unlocked now.
Now download supersu.zip and install it with twrp
Note:Flash supersu.zip is only required for lollipop version.
In marshmallow and noughat you don't need to flash supersu. If you do same then you will be got a device with bootloop.
In 6.0.1 and 7.0 the root access is already installed . you can got it from developer mode.
Hit thanks if I give you right instructions.

fastboot cannot recognize device but adb can

usb debugging is enabled on device. running latest version of adb, fastboot. Have tried on both mac and win10 but same issue on both.
Oneplus 7 pro is running 10.3.0GM21AA
>fastboot devices
>adb devices
List of devices attached
966c8016 device
Trying to use fastboot to flash patched magisk img and install magisk.
Do you enter in fastboot in phone?
Sent from my GM1910 using Tapatalk
Yes tried from bootloader as well
fustyler said:
Yes tried from bootloader as well
Click to expand...
Click to collapse
bootloader-fastboot mode is the only time fastboot commands will work. I know you tried this "also". But I feel you are wasting your time trying to run fastboot when phone is booted (instead of focusing on the situation where fastboot should actually be working). adb and fastboot will not work at the same time by definition. Also, debugging does not need to be enabled for fastboot (only for adb).
redpoint73 said:
bootloader-fastboot mode is the only time fastboot commands will work. I know you tried this "also". But I feel you are wasting your time trying to run fastboot when phone is booted (instead of focusing on the situation where fastboot should actually be working). adb and fastboot will not work at the same time by definition. Also, debugging does not need to be enabled for fastboot (only for adb).
Click to expand...
Click to collapse
I have tried it from bootloader and still the same on my pc it just says waiting for device.
What else can I try?
fustyler said:
I have tried it from bootloader and still the same on my pc it just says waiting for device.
What else can I try?
Click to expand...
Click to collapse
Try a different cable, different USB port. Fastboot can be finicky sometimes. You can also go to Windows Device Manager, find the device, and see if you can manually select the drivers. There is a generic Android device driver that sometimes gets fastboot to work properly on some of my past devices. This is on Windows 7, haven't done this on WIn 10 yet, so not sure if it is exactly the same.
redpoint73 said:
Try a different cable, different USB port. Fastboot can be finicky sometimes. You can also go to Windows Device Manager, find the device, and see if you can manually select the drivers. There is a generic Android device driver that sometimes gets fastboot to work properly on some of my past devices. This is on Windows 7, haven't done this on WIn 10 yet, so not sure if it is exactly the same.
Click to expand...
Click to collapse
Have tried different cables and different machines both pc and mac
What's you gotta do is look up how to disable signature verification in Windows 10. Then once you done that stuff put your device in fastboot mode then on the window 10 PC open of device drivers find Android phone then bootloader update driver. There will be 2 choices for updating pick the on device one. Should do you right.
I had to do this after flashing the T-Mobile version to my international version with the msmtool and it locked my bootloader for me
Since adb is working, do an adb reboot bootloader and it'll then boot into fastboot. If you can't get a return on fastboot devices at this point, it could be you haven't oem unlocked your phone yet.
mnemesis said:
Since adb is working, do an adb reboot bootloader and it'll then boot into fastboot. If you can't get a return on fastboot devices at this point, it could be you haven't oem unlocked your phone yet.
Click to expand...
Click to collapse
I ran adb reboot bootloader from pc to boot phone into fastboot.
In the bootloader it states device state is unlocked
However fastboot devices ran from pc still shows no device.
billyt1 said:
What's you gotta do is look up how to disable signature verification in Windows 10. Then once you done that stuff put your device in fastboot mode then on the window 10 PC open of device drivers find Android phone then bootloader update driver. There will be 2 choices for updating pick the on device one. Should do you right.
I had to do this after flashing the T-Mobile version to my international version with the msmtool and it locked my bootloader for me
Click to expand...
Click to collapse
Thanks this fixed it.
Issue fixed by billyt1's comment above. case closed.
billyt1 said:
What's you gotta do is look up how to disable signature verification in Windows 10. Then once you done that stuff put your device in fastboot mode then on the window 10 PC open of device drivers find Android phone then bootloader update driver. There will be 2 choices for updating pick the on device one. Should do you right.
I had to do this after flashing the T-Mobile version to my international version with the msmtool and it locked my bootloader for me
Click to expand...
Click to collapse
This worked for me as well. Just to make it clear, rephrasing his reply. After disabling signature verification on windows 10, connect your phone in fastboot mode & open Device Manager on Windows & look for Other > Android device.If it is found, This means Windows 10 is not having proper drivers to recognize fastboot device. Now install "OnePlus_USB_Drivers_Setup.exe" & it will show pop up for installing driver & after accepting(this is blocked due to signature verification in normal situation), Android device will be recognized in fastboot mode.
Giri Prasad said:
This worked for me as well. Just to make it clear, rephrasing his reply. After disabling signature verification on windows 10, connect your phone in fastboot mode & open Device Manager on Windows & look for Other > Android device.If it is found, This means Windows 10 is not having proper drivers to recognize fastboot device. Now install "OnePlus_USB_Drivers_Setup.exe" & it will show pop up for installing driver & after accepting(this is blocked due to signature verification in normal situation), Android device will be recognized in fastboot mode.
Click to expand...
Click to collapse
ugh. I've tried all of these suggestions and still can't get the device listed in adb while in fastboot.
I even used the TOOL ALL IN ONE without success. Funny thing is, that program recognizes my phone being in fastboot and has it listed. But if I try to flash a recovery from there, it opens a command window and ultimately says there was an error in connecting to the device.
Any help is appreciated.
I have a similar problem. I tried to disable the signature. Installed a new Redmi Note 7 driver. The phone is recognized as an Android phone in the device manager. In Orangefox recovery it is recognized with ADB command. In fastboot it is not recognized. In Orangefox I can't format data. So my ROM is not booting up. So I want to flash fastboot ROM with Fastboot but in Fastboot device is not even recognized.
t
puyow18 said:
ugh. I've tried all of these suggestions and still can't get the device listed in adb while in fastboot.
I even used the TOOL ALL IN ONE without success. Funny thing is, that program recognizes my phone being in fastboot and has it listed. But if I try to flash a recovery from there, it opens a command window and ultimately says there was an error in connecting to the device.
Any help is appreciated.
Click to expand...
Click to collapse
Sorry on the late reply. Pretty sure you can only do fastboot boot boot(recovery).img or\and boot_a or boot_b. Wont let you fastboot flash boot.img.
billyt1 said:
What's you gotta do is look up how to disable signature verification in Windows 10. Then once you done that stuff put your device in fastboot mode then on the window 10 PC open of device drivers find Android phone then bootloader update driver. There will be 2 choices for updating pick the on device one. Should do you right.
I had to do this after flashing the T-Mobile version to my international version with the msmtool and it locked my bootloader for me
Click to expand...
Click to collapse
Thank you so much!
I also had same issue. my redmi note 6 pro and asus zenfone max pro m1 can be detected in adb but not in fastboot. tried everything. changing driver/disble signature verification. also tried virtual box ubuntu/window 7. but not succeeded. It is actually an issue with usb 3. so I bought usb 2 hub. now everything works fine.
Thank you Thank you Thank you Thank you Thank you Thank you...I have been fooling with this all day
Hi, I already solved this issue (but this only works for xiaomi phone (Redmi Note 7 to be specified), for other brands I think need to download your devices flasher/driver tool)
For Xiaomi user only
1. Download Mi Unlock Tool (https://mi-globe.com/download-xiaomi-mi-unlock-tool-all-versions/) (Version 4.5.813.51)
2. Extract the files anywhere you like
3. Run MiUsbDriver.exe to install the driver
4. Try fastboot devices command
I hope this helps you guys. The Mi Unlock Tool also useful to unlock device locked bootloader.
For other devices maybe can follow this tutorial
Fixed: Fastboot not detecting your Android device
Fix the Fastboot not detecting your device. If your device is not detected by the Fastboot then these tricks will really help you.
www.qasimtricks.com

Alcatel TCL A502DL/A501DL root/custom recovery/custom roms?

Is there any way to get root/custom recovery/custom roms on the A502DL or A501DL? If so, how?
lehmancurtis said:
Use the boot mode tool from here for the a501dl. It definitely is unlockable! You can grab the TWRP.img I compiled for the a501dl from this link.
Click to expand...
Click to collapse
Bump. I found some information, but unfortunately the instructions are not very clear. I assume lehmancurtis means to go to fastboot with the boot mode tool, and then flash the TWRP.img with adb. However, I am not sure if this is the right way to do things and I do not have adb drivers for the A501DL or A502DL.
lmgnsa said:
Bump. I found some information, but unfortunately the instructions are not very clear. I assume lehmancurtis means to go to fastboot with the boot mode tool, and then flash the TWRP.img with adb. However, I am not sure if this is the right way to do things and I do not have adb drivers for the A501DL or A502DL.
Click to expand...
Click to collapse
adb and fastboot include a generic Google driver and the VCOM driver installer for mtk includes what you'll need. Once in fastboot...
Code:
fastboot oem unlock-go
Follow the instructions on your device to unlock the bootloader. Then boot to system and reboot to fastboot with bootmode tool. Once in fastboot...
Code:
fastboot erase recovery
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
Then it should boot to TWRP. Be sure to format data f2fs to remove encryption so you can mount data.
And you will need to install Magisk from recovery to have root and keep. OEM recovery from replacing TWRP.
lehmancurtis said:
adb and fastboot include a generic Google driver and the VCOM driver installer for mtk includes what you'll need. Once in fastboot...
Code:
fastboot oem unlock-go
Follow the instructions on your device to unlock the bootloader. Then boot to system and reboot to fastboot with bootmode tool. Once in fastboot...
Code:
fastboot erase recovery
fastboot flash recovery recovery.img
fastboot own reboot-recovery
Then it should boot to TWRP. Be sure to format data f2fs to remove encryption so you can mount data.
And you will need to install Magisk from recovery to have root and keep. OEM recovery from replacing TWRP.
Click to expand...
Click to collapse
Just to confirm:
To prevent the OEM recovery from replacing TWRP, I have to flash Magisk.
If I flashed a gsi, would this problem still be present?
edit: if I wanted to flash a gsi, would I be able to flash "A" only roms, "AB" only roms, or A/AB roms?
edit2: @lehmancurtis plz help me
@lehmancurtis : How do you get the a502dl into fastboot mode? I have tried everything that I can think of, and nothing works! Thank you for all of your help, m8!
fliproc said:
@lehmancurtis : How do you get the a502dl into fastboot mode? I have tried everything that I can think of, and nothing works! Thank you for all of your help, m8!
Click to expand...
Click to collapse
Use a tool that controls bootmode. Mtk-mode-selector
lehmancurtis said:
Use a tool that controls bootmode. Mtk-mode-selector
Click to expand...
Click to collapse
Please help, it says "waiting port" forever
Thanks for the reply! I tried this tool, along with adb commands, etc., and I just can't even get fastboot. This would be an AWESOME phone, if not for this dumb crap!! The phone I had before this one is a Z717VL, and it sucks as well. They are both Tracfone phones that were given to me by my wife. I think I'll just get a Galaxy S8 or so and just root it instead. All other phones that I had on Verizon in the past have been super easy... just a One-Click-Root. Thanks everyone for your time and help!
lehmancurtis said:
adb and fastboot include a generic Google driver and the VCOM driver installer for mtk includes what you'll need. Once in fastboot...
Code:
fastboot oem unlock-go
Follow the instructions on your device to unlock the bootloader. Then boot to system and reboot to fastboot with bootmode tool. Once in fastboot...
Code:
fastboot erase recovery
fastboot flash recovery recovery.img
fastboot own reboot-recovery
Then it should boot to TWRP. Be sure to format data f2fs to remove encryption so you can mount data.
And you will need to install Magisk from recovery to have root and keep. OEM recovery from replacing TWRP.
Click to expand...
Click to collapse
lehmancurtis said:
Use a tool that controls bootmode. Mtk-mode-selector
Click to expand...
Click to collapse
Are you sure the method you thought of works? The bootmode tool you linked cannot get the A501DL to fastboot mode, it just says "waiting port" forever.
@lehmancurtis I feel like you might be lying about whether or not your method works, as the boot mode tool does not work. @lmgnsa did it work for you?
I got it to work by loading the boot mode tool, selecting fastboot, and plugging the phone in when it is turned off while holding volume down.
Then you can unlock the bootloader.
williamhancock328` said:
I got it to work by loading the boot mode tool, selecting fastboot, and plugging the phone in when it is turned off while holding volume down.
Then you can unlock the bootloader.
Click to expand...
Click to collapse
I cannot get to fastboot even if I follow these steps... @williamhancock328` @lehmancurtis
It still says "waiting port" forever.
Make sure to install the MTK VCOM drivers first, the android drivers from google or samsung will not work!
Mediatek USB VCOM Drivers (all MTK devices).zip | by www.foldertips.com for Utilities
Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.
androidfilehost.com
I was able to bootloader unlock my Alcatel 3T 8, even being on tmobile using the boot selector tool
mickeybeats said:
Make sure to install the MTK VCOM drivers first, the android drivers from google or samsung will not work!
Mediatek USB VCOM Drivers (all MTK devices).zip | by www.foldertips.com for Utilities
Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.
androidfilehost.com
I was able to bootloader unlock my Alcatel 3T 8, even being on tmobile using the boot selector tool
Click to expand...
Click to collapse
I have already installed the MTK VCOM drivers multiple times, I don't know why it still doesn't work.
T
lmgnsa said:
Just to confirm:
To prevent the OEM recovery from replacing TWRP, I have to flash Magisk.
If I flashed a gsi, would this problem still be present?
edit: if I wanted to flash a gsi, would I be able to flash "A" only roms, "AB" only roms, or A/AB roms?
edit2: @lehmancurtis plz help me
Click to expand...
Click to collapse
lmgnsa said:
To keep recovery from being replace several files need to be disable (various approaches are effective i.e. removed, replace, or renamed). Magisk usually handles this task, but sometimes there are exceptions. But, you need to address that before flashing gsi's for multiple reason and none are fun to deal with. Yes, this is A only and does not use A/B update method (at least not entirely as a few partitions are making use of the A/B partition labels). I've not been doing much with this particular device since mine was cracked and the usb port messed up when I got it, so nature took its course before I was able to achieve a fully stable custom setup.
Click to expand...
Click to collapse
sj78 said:
I cannot get to fastboot even if I follow these steps... @williamhancock328` @lehmancurtis
It still says "waiting port" forever.
Click to expand...
Click to collapse
It sometime takes a few tries to get the phone and tool to do what its supposed to, but if you get the waiting message start over until the program reboots the device. It will work, it's just not a perfect process.
lmgnsa said:
Just to confirm:
To prevent the OEM recovery from replacing TWRP, I have to flash Magisk.
If I flashed a gsi, would this problem still be present?
edit: if I wanted to flash a gsi, would I be able to flash "A" only roms, "AB" only roms, or A/AB roms?
edit2: @lehmancurtis plz help me
Click to expand...
Click to collapse
You need to modify a few files. It's almost just like the 5059 devices and you can look up the 5041c thread to see what needs edited. Use the fstab.mt6739 from the 5041c.
Here's the tool. I think some of the links to it got messed up. Make sure you turn on developer options and check that oem unlock is ticked as well as adb usb options. Once in fastboot, issue the following
Code:
fastboot oem unlock-go
Follow the instructions on the device. Then boot into system and complete setup so that you can turn on developer options again since your device was just reset. Boot to fastboot once again and issue these.
Code:
fastboot flash recovery ./recovery.img
Code:
fastboot oem reboot-recovery
That should be the custom recovery you just installed. It will be replace on reboot if steps are not taken. I was in the process of working this issue when my beat up a501dl succumbed to its varied and multiple impact injuries. If I can find the time to repair it I will finish where I left off, but in the mean time I will help as much as I can.
Regular drivers are built into the phone but you may need vcom drivers. I'm going to attempt to repair mine enough to reset and flash again. I'll probably have to nav my screen via commands, but I will attempt to capture the process and show you.
I've got a A501DL, I enabled usb debugging and oem unlock, seems like the A501DL in fastboot does not talk with the pc, i've installed so many driver things its crazy butat fastboot when typing fastboot reboot bootloader, it reboots the phone but it skips fastboot and turns on to my home screen, I used volume up and power, I get in fast boot butthe device isnt being detected by windows 10 64 bit. Also in fast boot there is only
reboot system now
wipe data/factory reset
wipe cache partition
power off
im going nut that fastboot isnt working with this device.

CyanogenMod for Lenovo Tab2 A7

Hello,
I am trying to install CM on my old Android tablet - Lenovo TAB 2 A7-30DC, Android version : 5.0.1 , Kernel version: 3.10.54 . I have downloaded the zip cm-12.1-Tab2A710F-20210102-1707.zip , but I cant install it . I have root on the tablet, installed flashify, twrp, but I cannot unlock the bootloader - I dont have OEM unlocking as an option in Developer Mode menu. Please let me know what should be my next steps. Thank you.
Download "ADB fastboot tools"
Download and Extract the Downloaded ADB fastboot Zip file on your PC.
Now connect your phone to Computer using USB Cable.
When you connect your Phone to Computer, please wait until all the drivers get installed.
In your ADB fastboot folder open a command prompt window by pressing Shift Key + Right Mouse Click Now type the command in your command window:
-----------------------
adb devices
------------------------
If you see a pop up to allow USB Debugging on your phone, Click OK
Now type the command below to reboot your phone to bootloader:
-------------------------------------
adb reboot bootloader
-------------------------------------
Once your phone reboot into bootloader, make sure your phone shows the bootloader locked and then type the command below to make sure fastboot drivers are installed properly.
-------------------------------------
fastboot devices
-------------------------------------
This command will list the connected devices. If your phones serial number shows up you are good to go and may continue. If the phone is NOT listed this indicates that your drivers are not installed correctly. In order for you to continue you must fix your drivers so that your phone is listed under fastboot devices.If the phone has been recognized by the command above, proceed to unlocking the bootloader with the following command:
(Remember that this step will wipe EVERYTHING off the phone)
-------------------------------------
fastboot oem unlock
-------------------------------------
After the above command has finished executing, run the following:
---------------------------
fastboot reboot
---------------------------
The phone will reboot. Wait until the phone has fully booted up into android, and enjoy.
The link you posted is the only link I found on the internet that is not dead. It is impossible to find some link for custom rom and twrp that works. I have the same tablet. I unlocked the bootloader and that’s all I managed to do.
petko.dimitrov said:
Hello,
I am trying to install CM on my old Android tablet - Lenovo TAB 2 A7-30DC, Android version : 5.0.1 , Kernel version: 3.10.54 . I have downloaded the zip cm-12.1-Tab2A710F-20210102-1707.zip , but I cant install it . I have root on the tablet, installed flashify, twrp, but I cannot unlock the bootloader - I dont have OEM unlocking as an option in Developer Mode menu. Please let me know what should be my next steps. Thank you.
Click to expand...
Click to collapse
I have this problem too. And I have another problem my device recognizes my tab when I type adb devices but it doesn't recognize it in fastboot mode. I have installed all drivers I don't know what else to do.

[Q] Adb devices command don't work while in fastboot and EDL mode

I have access to fastboot and EDL mode. Does this mean that I can also access the mode that will show the phone after the adb devices command?
If device gets booted into FASTBOOT or EDL mode then it can't additionally get accessed via ADB: this can only get achieved when device got booted into RECOVERY mode.
To clarify:
ADB ( short for Android Debug Bridge ) deals - as its name implies - with a device's Android OS.
FASTBOOT deals - as its name implies - with device's bootloader, if that isn't bricked.
EDL ( short for Emergency Download Mode ) - specific to devices with a Qualcomm Snapdragon chipset - deals with the device itself, is used if bootloader is bricked.
Thank you for your quick help. Is it possible to access adb during bootloop?
I entered something called recovery mode, but the computer doesn't recognize that any device has been connected - adb devices doesn't see anything either.
On one of the pages I read this information:
Spoiler
Ed Reynolds says:
December 2, 2018 at 4:31 am
Unfortunately, there really is no “recovery” per set, yet. There is a mode where one can factory reset the phone which can be reached using the hardware buttons. However, from there, you cannot do anything other than reboot to a simpler form of phone. There are no options to go into bootloader or Fastboot mode. ADB won’t get you there. Sometimes, using ADB, you can boot into a simple android recovery with no command! There you remain until hard booting back it back into full functionality. Developer is apparently working on it
Reply
Deepak Gupta says:
December 2, 2018 at 4:38 am
Hi Ed Reynolds,
Thanks for sharing your knowledge. We appreciate your efforts. Yes, stock recovery doesn’t offer many options. One has to install a custom recovery like TWRP to get over this problem and to maximize productivity.
Reply
Ed Reynolds says:
December 8, 2018 at 7:48 pm
That is correct. but, in order to install a custom recovery, one must be able to get into bootloader, in some way. Either through physical buttons or through the ADB tool. forget about using the physical buttons – they get you to the recovery that you mention, but cannot get you into Fastboot (bootloader) mode. If you use the ADB tools while in this particular recovery mode, and try to reboot into bootloader mode from there, it boots back into the system. So, using that route, you cannot ever get to a place where you can install TWRP or anything else, for that matter – including applying an unlocking code if one were available. Next, if you try to get into recovery mode using the ADB tools (not the physical buttons, you do arrive at a more “conventional” recovery — with the picture of the little Android symbol, etc. However, there are no commands to use to get into Fastboot or bootloader mode. I have had this problem before and sometimes, using the physical buttons, you can reveal commands at this stage. However, even here, no combination of physical buttons reveals any commands. Then, as a last ditch effort, you use the ADB tools to boot into bootloader mode, you return to the system! The result is, again, you cannot install any sort of custom recovery because there is no internal or external way to flash it. If you have overcome this problem, please share! It is very frustrating! Thanks. Ed
Does this mean that I will need to flash custom recovery to gain access via adb during bootloop?
Android's Recovery is nothing else than a minimalistic working Android OS, comparable to Windows Recovery Environment ( WinRE ), so it's accessible via ADB.
A Custom Recovery ( like TWRP ) isn't needed at all, because such a only is an UI version operable by touches.
So if Windows don't see device when is in recovery mode (but recognize correctly when is in fastboot mode), there is a problem with drivers?
I want to access to adb pull for backup. Device is rooted with unlocked bootloader and allowed USB debugging and no PIN password, but bootlooped after trying to restart after uninstalling YouTube app
OMG
when in Recovery mode then you've to connect device via USB-cable with computer and you can launch adb pull command on computer.
When I in recevery mode, computer not recognize it - adb commands not working, device manager don't see any device. When I on fastboot or EDL, computer recognize phone, commands working and device manager shows device on list
Then obviously USB Debugging didn't get enabled in Android's Developer Options.
Robert997 said:
When I in recevery mode, computer not recognize it - adb commands not working, device manager don't see any device. When I on fastboot or EDL, computer recognize phone, commands working and device manager shows device on list
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As the other user said, USB Debugging is not enabled or proper drivers are not installed. The drivers for fastboot and adb are different. Search for correct drivers, disable driver signing in Windows and install the drivers.

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