Please help. Strange problem with fastboot mode - Android One (Second-Generation) General

Hello guys,
I have 3 identical phones i-mobile IQ2. They are shared among our family.
Mine (fortunately) is runnng fine. The 2 others not so. That's the reason why I want to flash a different ROM.
I have 2 Computers, One with Windows, the other Linux. Both are equipped with adb/fastboot.
What did I do?
1) enabled developer options in the settings.
2) enabled USB debugging and OEM unlock in developer options.
3) Connect the phone via USB
4) Terminal command "adb devices" shows correct serial number of the phone
5) and here it starts. After typing "adb reboot bootloader", the phone shows the white i-mobile screen which is shown when you enter fastboot mode. But....
6) "fastboot devices" results in the terminal message "waiting for any devices"
And that's it. Nothing happens. Retried with 2 phones and always the same. The funny thing is that on my identical phone, there is not a problem and typing "fastboot devices" results in a proper recognition of my phone.
So.... is there anything that I could have done wrong or that I forgot? How can I unlock my bootloader in a different way? As far as I know, adb commands are usually the last resort.
I would appreciate every help. Thanks

You need to install fastboot drivers for your device when your device is in fastboot mode as I know.
here is the right drivers for me in the whole internet: https://mega.nz/#!YcUABBpR!_8w6S5zj_Ct2eBMPr6cL1d1NhC4AZEfphOSQJRJZmjU

I had the same problem on my gm4g nd i solved installing the correct driver just like nhmanas said. Good luck.

nhmanas said:
You need to install fastboot drivers for your device when your device is in fastboot mode as I know.
here is the right drivers for me in the whole internet: https://mega.nz/#!YcUABBpR!_8w6S5zj_Ct2eBMPr6cL1d1NhC4AZEfphOSQJRJZmjU
Click to expand...
Click to collapse
Ok, I will try and get back to you again. Thanks for now.

Related

trouble with bootloader unlock

Hello everyone, I'm trying to unlock my bootloader but I have hit a roadblock and cannot seem to find anything that helps.
The part where i am stuck at is that when i enter "fastboot.exe -i 0x0fce getvar version" all i get is "waiting for device" infinitely.
I know the phone is in fastboot mode because the blue light is on
It seems my pc isn't recognizing my phone when it's in fastboot mode. I can see my phone in windows device manager as "S1 boot fastboot" but when i try to update the drivers manually using the drivers provided by sony, i just get an update failed screen.
any help would be much appreciated, i'm sure it's something dumb that i did, but i just can't figure out what.
KlamKhowder said:
Hello everyone, I'm trying to unlock my bootloader but I have hit a roadblock and cannot seem to find anything that helps.
The part where i am stuck at is that when i enter "fastboot.exe -i 0x0fce getvar version" all i get is "waiting for device" infinitely.
I know the phone is in fastboot mode because the blue light is on
It seems my pc isn't recognizing my phone when it's in fastboot mode. I can see my phone in windows device manager as "S1 boot fastboot" but when i try to update the drivers manually using the drivers provided by sony, i just get an update failed screen.
any help would be much appreciated, i'm sure it's something dumb that i did, but i just can't figure out what.
Click to expand...
Click to collapse
unlock it using flash tool, just press unlock wait and enter the code.. done
KlamKhowder said:
Hello everyone, I'm trying to unlock my bootloader but I have hit a roadblock and cannot seem to find anything that helps.
The part where i am stuck at is that when i enter "fastboot.exe -i 0x0fce getvar version" all i get is "waiting for device" infinitely.
I know the phone is in fastboot mode because the blue light is on
It seems my pc isn't recognizing my phone when it's in fastboot mode. I can see my phone in windows device manager as "S1 boot fastboot" but when i try to update the drivers manually using the drivers provided by sony, i just get an update failed screen.
any help would be much appreciated, i'm sure it's something dumb that i did, but i just can't figure out what.
Click to expand...
Click to collapse
try using different usb cable/ different port.
Had same problem....some driver was missing
Sent from my C5503 using xda app-developers app
I've finally gotten flash tool to work, however now it gives me an error saying that my device cannot be officially unlocked,
EDIT: i'm pretty sure i've unlocked the bootloader now, as flashtool had me enter an unlock code and my device has had all of its data reset.
however my issues continue as now flashtool utterly refuses to pick up my device. I have re-installed all drivers, flashtool, etc but still nothing.
sometimes it may have conflicts when flashtool and other tools use their own instance of adb or fastboot. I think the best thing to do now is reinstalling regular drivers normally. don't forget to enable usb debugging...
this may be useful :
Code:
[I]ADB_PATH[/I]\adb kill-server
exit
create a text file, paste this code then save it as ADB - Kill.cmd

[Q] Bootloader Troubles

Last night I was on my nexus before I would go to bed. I opened the franco kernel app and then noticed that r6 was available for download. I downloaded and flashed it and was about to go to sleep when I noticed the notification light that my phone was charging. I thought it was neat then tried to get some sleep, but my promised sleep did not come quick. After a good chunk of time had passed, I thought that my lack of sleep was caused by the green light that was barely noticable. I searched and searched in the app to try and find an option to disable the LED, but could not. I then decided that the best way to get rid of the light, would be to flash the older r5 kernel so I wouldn't have to see the light anymore. I hit flash and my phone rebooted and then brought me to the bootloader. I attempted to reboot but I could not. I've tried using adb and nexus root toolkit to get my device to work again, but they can't seem to find it without the correct drivers. I installed Motorola device manager, nothing. I tried to follow the instructions in the toolkit to get the correct drivers installed but I can't continue with the need to enable debugging, which I cannot do from being stuck at the bootloader.
Under bootloader logs, I have the following messages:
Invalid boot image size!
failed to validate boot image
Fastboot Reason: Fall-through from normal boot mode
Any help would be greatly appreciated.
USB debugging is an android setting. It can only be used when android is running. If you had USB debugging on, it would make absolutely no difference in recovery or bootloader so don't let that step stop you.
From the logs, it sounds like your kernel download is corrupt or didn't flash properly. I had a similar message when I flashed a partially downloaded recovery image today.
Just fastboot flash a complete boot image
I tried that last night by launching adb and doing 'adb devices' but my device is unrecognized and I am unsure of how to go about fixing that.
thecupman said:
I tried that last night by launching adb and doing 'adb devices' but my device is unrecognized and I am unsure of how to go about fixing that.
Click to expand...
Click to collapse
Tried what exactly? Adb and fastboot are two different things. Adb works in android or recovery only. Fastboot works in boot loader only. Boot to boot loader and do "fastboot devices"
Ah that was my mistake. But the fastboot devices command just returns a new line for a new command to be entered in
thecupman said:
Ah that was my mistake. But the fastboot devices command just returns a new line for a new command to be entered in
Click to expand...
Click to collapse
That probably means there is a blank line between them - showing that no device is found. Unlike Adb it just gives a blank line instead of "no devices".
Probably means a driver issue or cable issue. Try different USB ports / cables if you can. Check to see if there are any yellow triangles in device manager too.
I'm new to this phone so I don't know where the drivers are if you need them. If I ever find them, I'll port my nexus 5 Adb and fastboot thread over here. Unfortunately i use Linux at home so I don't really have a driver issue.
Oh, so if I were to use Linux I wouldn't have to deal with missing drivers? I'm assuming that's the issue since no matter which port I use, 'Connect USB Data Cable' doesn't change
thecupman said:
Oh, so if I were to use Linux I wouldn't have to deal with missing drivers? I'm assuming that's the issue since no matter which port I use, 'Connect USB Data Cable' doesn't change
Click to expand...
Click to collapse
I can't say for sure. In Linux you may need to add UDEV rules. I didn't though. My bootloader is just recognised.
Please do check your device manager though.
I'm sorry i can't help more right now. I'm going to bed.
Okay, thank you! I'll reply if I encounter any other errors!
The Google driver works for all Nexus devices (except the GNex): http://developer.android.com/sdk/win-usb.html

help with unlocking the bootloader and rooting the latest version H811-20p

Hi,
I looked all over the place but could not find a way to unlock the bootloader of the latest version of my device. Currently running Android 6.0 H81120p and rooting this version as well!
hammy88 said:
Hi,
I looked all over the place but could not find a way to unlock the bootloader of the latest version of my device. Currently running Android 6.0 H81120p and rooting this version as well!
Click to expand...
Click to collapse
i recommend for you to KDZ 20p refurbished..
and heres the instruccions same as 20i
http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227
i tried but its not working as i get stuck on waiting for device after i type the command to reboot to bootloader, installed google usb drivers , lg drivers and all but nothing seemed to be fixing the issue
hammy88 said:
i tried but its not working as i get stuck on waiting for device after i type the command to reboot to bootloader, installed google usb drivers , lg drivers and all but nothing seemed to be fixing the issue
Click to expand...
Click to collapse
did you click on screen when you gave the command to go into fastboot it shows some sort of numbers and leters and asks you if you want to allow phone .??/ did you
Yes I did allow the computer to have access to the phone, when i typed the command to reboot to bootloader it did, but then when i type the command to fastboot oem unlock it gets stuck on waiting for any device. I tried doing it again just to check, after i get to bootloader, i typed adb devices it doesn't show any device thats connected
hammy88 said:
Yes I did allow the computer to have access to the phone, when i typed the command to reboot to bootloader it did, but then when i type the command to fastboot oem unlock it gets stuck on waiting for any device. I tried doing it again just to check, after i get to bootloader, i typed adb devices it doesn't show any device thats connected
Click to expand...
Click to collapse
adb reboot bootloader (phone reboots to bootloader)
fastboot oem unlock (this wipes ALL data!!)
debugging tick and unlock oen in dev options.?
raptorddd said:
adb reboot bootloader (phone reboots to bootloader)
fastboot oem unlock (this wipes ALL data!!)
debugging tick and unlock oen in dev options.?
Click to expand...
Click to collapse
I checked the oem unlock, and the USB debugging thing is checked as well. Developers Options is on but same issue. I installed the latest USB drivers, installed Google USB drivers. I went to device Manger and I can't see that my device is even connected!
hammy88 said:
I checked the oem unlock, and the USB debugging thing is checked as well. Developers Options is on but same issue. I installed the latest USB drivers, installed Google USB drivers. I went to device Manger and I can't see that my device is even connected!
Click to expand...
Click to collapse
can try another computer maybe. i use the drivers from LGUP..
am afraid i do not know how to proceed from here. am pretty sure you are not alonei gave read someting similar but.. i didnt pay attention
I tried 3 other computers , did not help resolve the issue
hammy88 said:
I tried 3 other computers , did not help resolve the issue
Click to expand...
Click to collapse
i came across this try it.
http://forum.xda-developers.com/showpost.php?p=69339003&postcount=2
Use Linux dude, also try different cables. My stock g4 came with a bad cable that only charged.
I've had exactly the same problem as hammy88. Is what is referred to as "fastboot mode" the same as download mode? I know it's relatively easy to get into download mode. But "adb reboot bootloader" doesn't work for me.
Fastboot mode ≠ Download mode
If you did tick "Enable OEM unlock" , and adb reboot bootloader doesn't work, then I guess is BL is locked now.
I tried the method , i found that Android Bootloader does not have a green light, so i went to device manager to try to update the driver but it wasn't even there, clicked on view to show the hidden items or whatever then found android device, when i clicked update the driver i could not find the Google fastboot thing to update it with, all i got was either LG usb or ADB interface even thoough i downloader google fastboot usb drivers few days ago
hammy88 said:
I tried the method , i found that Android Bootloader does not have a green light, so i went to device manager to try to update the driver but it wasn't even there, clicked on view to show the hidden items or whatever then found android device, when i clicked update the driver i could not find the Google fastboot thing to update it with, all i got was either LG usb or ADB interface even thoough i downloader google fastboot usb drivers few days ago
Click to expand...
Click to collapse
Brother, be calm. Find the fastboot drivers. And update.
You will figure it out. Just do it.

A guide for flashing TWRP?

I've been searching all over the place...
Could anyone point me at a guide for newbs?
Thanks!
X
1xcalibur1 said:
I've been searching all over the place...
Could anyone point me at a guide for newbs?
Thanks!
X
Click to expand...
Click to collapse
First, you need your bootloader to be unlocked. It's pretty easy if you have that done already.
You'll need ADB and Fastboot. It can be tricky to get the right drivers. The driver used when your phone is connected in normal mode is not the same when connected in fastboot mode, in my experience anyway. You'll want the 15sec ADB driver and you'll need to update the driver when it is in fastboot mode.
Next, get the correct twrp img and put it in the ADB folder(you'll need a different one based on flashing a pie rom or a q rom). You may want to rename it so it's easier to type in fastboot.
To enter fastboot mode, hold volume up and plug in the usb cable. The LED should light up blue.
Open a command prompt and navigate to wherever you've installed ADB(mine is on C:\ so it's really easy).
Type "fastboot devices" to double check if the driver is installed and your phone is connected in fastboot mode.
------It should show something like: BH9090808E fastboot
Then type "fastboot flash recovery twrp.img" - or whatever you've named the file. It will take less than a few seconds.
Then type "fastboot reboot" and let your phone reboot.
Done
Thanks a lot for the reply!
I've been experiencing the exact issues you described. I'm having issues unlocking the Bootloader. "Fastboot.exe devices" does not show anything, the phone is with a blue led on and a balck screen and when I look in Device Manager there's an "Other" Android device with an "!".
Could you please share the drivers you mentioned? Because I really went through
everything and none was accepted. Also the 15 Seconds ADB Drivers did not help.
Thanks!
1xcalibur1 said:
Thanks a lot for the reply!
I've been experiencing the exact issues you described. I'm having issues unlocking the Bootloader. "Fastboot.exe devices" does not show anything, the phone is with a blue led on and a balck screen and when I look in Device Manager there's an "Other" Android device with an "!".
Could you please share the drivers you mentioned? Because I really went through
everything and none was accepted. Also the 15 Seconds ADB Drivers did not help.
Thanks!
Click to expand...
Click to collapse
My apologies. It's been so long since I've started from scratch, I must've gotten the drivers mixed up. The 15sec ADB is for the phone connected in normal mode.
I'm pretty sure this one is the fastboot one:
https://developer.sony.com/file/download/xperia-xz1-compact-driver/
If not, I'm sorry because that's all I have.
I nailed it eventually!
For anyone that comes across this thread,
this video will solve all your problems with adb drivers:

Question [Resolved] No connection with pc in fastboot mode.

Hello all, I'm trying to install a new ROM but one of the first steps consists in getting access to adb and fastboot mode.
Unfortunately, I can easily access to adb mode, and adb commands respond well, but when I then go in fastbood mode 'adb reboot fastboot", My phone goes to fastboot with the icon on the screen, but won't answer to any fastboot commands.
I've tried to install adb drivers, uninstall/reinstall the drivers (but it's always the windows drivers that installs first). I even tried to install google usb drivers using SDK manager, but didn't succeed this step.
I've tried to change the usb cable, but with another one, it was worse: even the adb commands would not work. So I guess the one I'm using is ok.
I'd be very happy if someone could help me fixing this frustrating bug!
Model:M1903F11A
kernel:4.14.117-perf-g0f2347b
MIUI Global 12.0.6
Android version : 10 QKQ1.190825.002
Cyjam said:
.. new ROM but one of the first steps consists in getting access to adb and fastboot mode.
...
Click to expand...
Click to collapse
The first step is to unlock the bootloader.
Cyjam said:
... when I then go in fastbood mode 'adb reboot fastboot", My phone goes to fastboot with the icon on the screen, but won't answer to any fastboot commands.
....
Click to expand...
Click to collapse
For fastboot try:
adb devices
........... (here you must see a number)
adb reboot bootloader
fastboot devices
........... (here you must see that number again)
Hi, thanks for trying to help me:
you're right , first is the unlock, but it's done. it's even in "grey" on the screen and written: bootloader is already unlocked. I've tested my phone with "root checker" and test is ok.
you're right about the command, this is the one I've used to go to fastmode and actually this command works: as I said, when in adb mode, it's all good: my phone is connected to pc and accepts the adb commands. But once I switch to fastboot, this is when it's going wrong: my phone's not answering to any commands.
To be more precise: when prompting: adb devices: i get a number. When prompting, in fastbood mode, fastboot devices: i get nothing.
Alleluia!!
Finally found out how to fix it!
After going in fasboot mode with the command: adb reboot bootloader, i opened the windows device manager: There I found a android XXx interface, or something like this: anyway, something barely identified by windows. Right clik, update drivers, manually update, pointing to the folder I store the google usb drivers and : Bingo! It works like a treat.
I now can step further in the process... Hope I won't need to come back with another question in the next minutes!

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