Develop Bugs

Trying to unlock the bootloader

I get through all the steps, adb setup recognizes my device is connected. When i try to unlock the bootloader <fastboot oem unlock> command line locks up at <waiting for device>.
can someone advise?
Verizon if that matters

What happens when you type in "fastboot devices"

Nothing happens. Tried it both before and after typing in adb reboot bootloader

You sure your pc is detecting the phone when it is in fastboot mode? To me it seems like your computer isn't detecting the phone or the drivers didn't get installed properly.

<deleted>
answered my own question

I had the same issue. Assuming you're using Windows, you need to find where the latest Samsung drivers for the GN were copied to when you installed them (you have installed them, right?) The next time you plug in your phone, it will probably ask you to setup a new device. Tell it you will install the drivers from a location you choose, navigate to the folder where the drivers are, let it install them, restart if it asks, and then try the process over.
FWIW, I used the directions and links from this tutorial and eventually got it working. They include alternate drivers here in case the one from samsung.com doesn't work.

im having the SAME PROBLEM AND HAVE TRIED TWO DIFFERENT COMPUTERS.TRING ADB METHOD

What's the ADB method? Why don't you just just hold the volume up, volume down and power to get into fastboot mode? When you plug it in, windows should see a new device that needs drivers. You need to make sure the drivers are installed before fastboot will work.

i am in fastboot "little android with chest opened". and i do have the driver installed but in fastboot windows thinks its a different device

robitron929 said:
i am in fastboot "little android with chest opened". and i do have the driver installed but in fastboot windows thinks its a different device
Click to expand...
Click to collapse
Is it saying that it couldn't install the drivers for Android 1.0 or something like that? What step are you at? Which tutorial are you using?
Read the driver installation part of this tutorial.
http://forum.xda-developers.com/showthread.php?t=1392310

i got it. it was this
TO GET DRIVER WORKING IN BOOTLOADER YOU MIGHT HAVE TO DO THIS, THIS TOOK ME FOREVER TO FIND!!!!!!!!!!!
I TAKE NO CREDIT!
READ CAREFULLY
THANKS TO KELLEX FROM DROIDLIFE
Tips:
-We know that many of you are running into a “waiting for device” issue when apply the fastboot oem unlock command. This is a driver issue and one that a reader has a suggestion for:
1. Open device manager on your PC.
2. Right click on Android 1.0 with the yellow ! mark on it.
3. Choose update driver.
4. Choose browse my computer.
5. Choose Let me pick from a list.
6. Scroll down and find the Samsung driver with newest date. Should be the driver you downloaded above. (Possibly dated 11/25/2011 ).
7. It will give you a warning about installing the driver, just click yes.

fastboot mode not working

hi everyone, i'm trying to install CM9 on my LT15i, i've tried using the CM wiki instructions and both the following guides...
androidauthority.com/xperia-arc-lt15i-root-android-4-0-ics-80265/
and
androidforums.com/rezound-all-things-root/506466-scottys-noob-friendly-root-guide-start-finish.html
the phone is already fully unlocked and has CM 7.2.0 anzu installed. i've tried simply using the clockwork recovery mod bootloader to wipe the phone and install CM 9.0.0, but on reboot the phone gets past the boot logo then just shows a black screen, so i assumed i needed to flash an appropriate ROM for CM9; this is where my problem begins.
every forum i've read about this process says i must enable usb debugging (done) and "disable fastboot" under settings>power, i do not have a "power" option in my settings and cannot find anything related to fastboot on the phone; although i'm not sure this is the problem. when android is running normally and i attempt to list devices with adb.exe on windows, it successfully returns the phone's serial number. when i shut the phone down, hold the menu button and plug in the usb cable, fastboot mode appears to work correctly as the LED comes on blue and "android adb device" appears in the windows device manager (i've tried installing the arc usb/adb drivers from various sources, they all seem to work correctly). but when i attempt to list devices after restarting in fastboot mode, adb.exe says it cannot find any device. fastboot.exe has not communicated with the device whatsoever, but i assumed i might need to get the adb.exe usb daemon/server running correctly first for this to work.
i did this process once already when i installed CM7, it was successful the first time and everything went smoothly. from what i recall i just did exactly as described above and fastboot.exe was able to find the device no problem. but that was a number of months ago, hopefully i'm just missing some obvious step.
cheers

WookieInHeat said:
every forum i've read about this process says i must enable usb debugging (done) and "disable fastboot" under settings>power, i do not have a "power" option in my settings and cannot find anything related to fastboot on the phone;
Click to expand...
Click to collapse
There is no such thing. And USB debugging is only required if you want to root stock ROM, every other action can be done without it.
WookieInHeat said:
although i'm not sure this is the problem. when android is running normally and i attempt to list devices with adb.exe on windows, it successfully returns the phone's serial number. when i shut the phone down, hold the menu button and plug in the usb cable, fastboot mode appears to work correctly as the LED comes on blue and "android adb device" appears in the windows device manager (i've tried installing the arc usb/adb drivers from various sources, they all seem to work correctly). but when i attempt to list devices after restarting in fastboot mode, adb.exe says it cannot find any device. fastboot.exe has not communicated with the device whatsoever, but i assumed i might need to get the adb.exe usb daemon/server running correctly first for this to work.
i did this process once already when i installed CM7, it was successful the first time and everything went smoothly. from what i recall i just did exactly as described above and fastboot.exe was able to find the device no problem. but that was a number of months ago, hopefully i'm just missing some obvious step.
cheers
Click to expand...
Click to collapse
Drivers, drivers, drivers.
If your phone is in fastboot mode, make sure drivers are installed. Proper drivers.
You do not need ADB server for installing a kernel.
Just open up Command Prompt and install the kernel with command
Code:
fastboot flash boot boot.img
.
Assuming boot.img is in the same folder as fastboot.exe.

Someguyfromhell said:
Drivers, drivers, drivers.
If your phone is in fastboot mode, make sure drivers are installed. Proper drivers.
Click to expand...
Click to collapse
thanks for the reply someguyfromhell. i've tried every "android adb interface" driver under the sun for the S1 fast boot device that appears in the windows device manager when i put the phone in fastboot. when i try to send any command with fastboot.exe it just hangs at "waiting for device", i've fiddled with this stuff every which way and just cannot get fastboot.exe to see the phone. i've tried switching up the usb ports on this computer, but haven't had the opportunity to try a second computer. you've let me know i'm going in the right direction at least, if i have the same results on a second machine i'll pursue the issue further.
thanks again
wookie

WookieInHeat said:
thanks for the reply someguyfromhell. i've tried every "android adb interface" driver under the sun for the S1 fast boot device that appears in the windows device manager when i put the phone in fastboot. when i try to send any command with fastboot.exe it just hangs at "waiting for device", i've fiddled with this stuff every which way and just cannot get fastboot.exe to see the phone. i've tried switching up the usb ports on this computer, but haven't had the opportunity to try a second computer. you've let me know i'm going in the right direction at least, if i have the same results on a second machine i'll pursue the issue further.
thanks again
wookie
Click to expand...
Click to collapse
You need to unlock bootloader, if you want to install CM ROM. Arc S can only have bootloader unlocked via official method, there you can also download the correct driver which you need.
http://unlockbootloader.sonymobile.com/

Someguyfromhell said:
You need to unlock bootloader, if you want to install CM ROM. Arc S can only have bootloader unlocked via official method, there you can also download the correct driver which you need.
the bootloader is already unlocked, as i said, the phone has CM7 on it currently.
Click to expand...
Click to collapse

GPS lock and Lollipop problems

Hello wonderful helpful android wizards out there! I humbly seek your help.
I recently purchased an unlocked HTC M8 AT&T and had it unlocked so I could use my prepaid carrier (Simple Mobile). I have two issues I would like help with:
1) I cannot get a gps lock at all. I have made sure the device is in high accuracy mode and I have tried downloading and refreshing aGPS data via the GPS status app.
2) I am trying to upgrade to lollipop using the provided RUU file on the HTC website:
http://www.htc.com/us/support/htc-one-m8/news/
I am currently running 4.4.2. I was hoping that upgrading to the latest firmware might solve my GPS problem as a bonus, though I obviously want lollipop anyway to just generally be up to date. HTC sync manager works fine, but when I run the RUU file, it says the phone is not connected. I have tried the PB99IMH solution posted here that seemed to work for many people:
http://forum.xda-developers.com/show....php?t=1928439
The roadblock I have hit is that I cannot copy the zip file onto my Android. I keep getting the error "The device has either stopped responding or has been disconnected." I can copy other file to the phone just fine. I tried fiddling with the permissions of the file, but I honestly don't really know what I'm doing with those.
So those are my problems. I would greatly appreciate any assistance.

While in fastboot/hboot mode. Is your device recognized?
Where you have adb installed just open up a command prompt and do "fastboot devices" ... If your device's serial number shows up then it's being recognized. If not then your drivers are not installed or not recognized.

Tachi91 said:
While in fastboot/hboot mode. Is your device recognized?
Where you have adb installed just open up a command prompt and do "fastboot devices" ... If your device's serial number shows up then it's being recognized. If not then your drivers are not installed or not recognized.
Click to expand...
Click to collapse
Thank you for your response.
I never explicitly installed adb. I have sync manager on my computer, and I can see adb.exe in my processes. I tried to open up the command prompt and typed "fastboot devices" while my phone is in fastboot usb mode and nothing showed up. When I tried to run the RUU file while the phone was in fastboot, i never got beyond the "verifying information on your android phone. please wait..." part.
EDIT: I would also like to point out that sync manager doesn't recognize my phone in hboot or fastboot, thought it does recognize it normally.

semantik said:
Thank you for your response.
I never explicitly installed adb. I have sync manager on my computer, and I can see adb.exe in my processes. I tried to open up the command prompt and typed "fastboot devices" while my phone is in fastboot usb mode and nothing showed up. When I tried to run the RUU file while the phone was in fastboot, i never got beyond the "verifying information on your android phone. please wait..." part.
EDIT: I would also like to point out that sync manager doesn't recognize my phone in hboot or fastboot, thought it does recognize it normally.
Click to expand...
Click to collapse
It not being recognized while in the bootloader via the HTC Sync app is normal.
You could flash an RUU from the phone itself. Simply copy the rom.zip to your sdcard and go into the bootloader it'll see it and flash aslong as its named properly.. ie 0PB6IMG.zip or something in those lines.
To get the rom.zip while the RUU is open go into your task manager and right click the ruu process and go to file location. The only zip in there thats ~2Gbs is the rom.

Tachi91 said:
It not being recognized while in the bootloader via the HTC Sync app is normal.
You could flash an RUU from the phone itself. Simply copy the rom.zip to your sdcard and go into the bootloader it'll see it and flash aslong as its named properly.. ie 0PB6IMG.zip or something in those lines.
To get the rom.zip while the RUU is open go into your task manager and right click the ruu process and go to file location. The only zip in there thats ~2Gbs is the rom.
Click to expand...
Click to collapse
Ok, i finally got the update to work, but I am still having GPS issues. Any ideas?

I am also having GPS issues. Everything else on the device works fine, it just never finds any satellites. Any help or updates would be nice.

I'm having GPS problems as well. I'm on CM12.1. It used to work fine, but I've been playing with it trying to get LTE to work, and somewhere in there, my GPS stopped locking.

adb doesnt recognise my phone anymore

I have an HTC One M8, bought from UAE. I rooted it and it all went well. Now I want to get OTA updates on the phone and I want to unroot for the moment. The problem is that I connect my phone to my laptop run adb but it doesnt do anything. All it says is list of devices attached and thats it. Nothing else at all. I cant give my phone commands or anything of the sort. I want to update my phone to the latest android version with sense 7 and I would prefer that I have a stock rom hence the OTA but without getting my phone recognised with ADB I dont know how to do it. Please help!
P.s. I am running windows 7 and my CID is HTC__J15
I got the CID from an app from the app store, dont know if its legit but I the gulf region uses this CID so I guess its safe to assume its correct.
P.s.s. Yes I have tried reinstalling HTC drivers and it hasnt done anything. The device manager doesnt have any unknown device listed either. Yes USB Debugging is also on and I get the notification on the phone as well but my computer doesnt recognise it.
P.s.s.s. Is there anyway to get the latest OTA without hooking my phone up to the computer? I'm not a tech guy so I need help. A step by step would be very nice. Thanks

Boot into bootloader and perform the "fastboot getvar all" command. Post the output here without IMEI and serial no. as the software number is needed to provide further instructions and identify the correct RUU and/or backup you'd need.
Send by the swarm intelligence of my coffee machine ?.

flamingpenguin said:
The device manager doesnt have any unknown device listed either.
Click to expand...
Click to collapse
Meaning the device doesn't show up at all in Device Manager (HTC, Android phone, etc.)?
If you boot the phone into bootloader-fastboot mode, any response to fastboot commands (fastboot devices, etc.). Sometimes fastboot works, when adb doesn't. And fastboot is the really critical one you want.

HTCNerdYoda said:
Boot into bootloader and perform the "fastboot getvar all" command. Post the output here without IMEI and serial no. as the software number is needed to provide further instructions and identify the correct RUU and/or backup you'd need .
Click to expand...
Click to collapse
I tried booting into fastboot mode and then hooking it up with the computer. I enter the fastboot getvar all command and all I get is < waiting for device > it just stops there for as long as I wait and it doesnt do anything. Please help!!! I've tried different cables as well. Also a different laptop. I'm not sure whats wrong. The sync manager doesnt work either. Doesnt detect my phone :crying:

redpoint73 said:
Meaning the device doesn't show up at all in Device Manager (HTC, Android phone, etc.)?
If you boot the phone into bootloader-fastboot mode, any response to fastboot commands (fastboot devices, etc.). Sometimes fastboot works, when adb doesn't. And fastboot is the really critical one you want.
Click to expand...
Click to collapse
Media Transfer Protocol works. I just get a new drive with my phones internal and external storage. I can transfer files but thats the only response my computer gives to the phone. Help please :crying:

flamingpenguin said:
Media Transfer Protocol works. I just get a new drive with my phones internal and external storage. I can transfer files but thats the only response my computer gives to the phone. Help please :crying:
Click to expand...
Click to collapse
Did you activate the developer options and if so USB debugging as well. Did you try installing Sync Manager to install the needed HTC drivers, uninstall it (as it interferes with adb/fastboot sometimes) to just keep the drivers? Which adb/fastboot are you using?
Send by the swarm intelligence of my coffee machine ?.

flamingpenguin said:
Media Transfer Protocol works. I just get a new drive with my phones internal and external storage. I can transfer files but thats the only response my computer gives to the phone. Help please :crying:
Click to expand...
Click to collapse
Try this: Go into Windows Device Manager, find the device, pick the option to manually select the drivers. Then pick the generic Android MTP device drivers (or some such name like that). I often have to do this to get my home computer to pickup my phone via adb/fastboot, while MTP works just fine.

HTCNerdYoda said:
Did you activate the developer options and if so USB debugging as well. Did you try installing Sync Manager to install the needed HTC drivers, uninstall it (as it interferes with adb/fastboot sometimes) to just keep the drivers?
Click to expand...
Click to collapse
I have both developer options and USB debugging on. I also tried drivers that came with the phone via the sync manager. Tried after getting rid of the sync manager but it still doesnt work. I can get my software number from setting>about etc no? My CID and Software number is all I need to unroot the phone and install the stock recovery, if I'm not mistaken? I am completely dumb at this tech thing. I'm a civil engineer. I understand concrete and rebar
redpoint73 said:
Try this: Go into Windows Device Manager, find the device, pick the option to manually select the drivers. Then pick the generic Android MTP device drivers (or some such name like that). I often have to do this to get my home computer to pickup my phone via adb/fastboot, while MTP works just fine.
Click to expand...
Click to collapse
I cant find my device in the Device Manager at all =/

flamingpenguin said:
I cant find my device in the Device Manager at all =/
Click to expand...
Click to collapse
I'd suggest downloading the drivers again and first of all try with another USB data cable. If it doesn't show up at all, it sounds as if you got a connection problem. So could also be caused by a defective cable and/or USB port on your phone.
I'd check the following:
1) try connection to another USB port
2) try with another data cable
3) download latest HTC drivers from HTC.
Send by the swarm intelligence of my coffee machine ?.

I had this happen to me and to resolve it I went into the C: drive of my computer and in the program files folder I located the HTC folder. Once there I looked for the apk files that allow you phone to connect to HTC sync. If I remember correctly, I copied apk file #2 to my phone and installed it. Once it was install that issue went away. To be on the safe side, copy and install each apk file one at a time(there should be 5 of them) to your phone. Only one of them will install the others will not. This will help you to locate and install the correct apk file. Once you have found and installed the correct one, you can removed the other apk files that wouldn't install and reboot your phone. After that connect your phone to your computer, and htc sync and adb should recognize your device. There is a thread on this but I can not remember where to locate it.

HTC desire in boot loop. PLEASE PLEASE HELP!

My HTC desire 820 keeps restarting itself as it is stuck in an endless boot loop. I have come across threads speaking of the same issue but the solutions don't seem to work on my phone.
My boot loader is locked. When i try to unlock it in fastboot mode, the device doesn't show up on the PC.
I need the boot loader unlocked so that i could push in a custom recovery mode as i cant get into the stock recovery too.
Does anybody have a solution for my kind of problem?
Also, when the phone is in fastboot usb mode, the computer makes a notification sound which indicates it recognizes the phone.
The only thing i can get into is my boot loader and which looks like this now:
***LOCKED***
A51_DTUL PVT SHIP S-ON
HBOOT-3.19.0.0000
OS-3.17.708.3
eMMC-boot 2048 mb
Apr 12 2016, 11:49:54.0
NOTE: I never tried to install a custom ROM. This problem arose on its own for reasons unknown to me. Moreover, my phone is UNROOTED.
PLEASE SOMEBODY HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE!
I'm clueless!

themember1993 said:
PLEASE SOMEBODY HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE!
I'm clueless!
Click to expand...
Click to collapse
Have you installed the adb/fastboot drivers on your PC?
Sounds like a drivers issue to me.
Try this thread to install the drivers then try communicating with the bootloader again.
https://forum.xda-developers.com/showthread.php?t=2588979

Gibz97 said:
Have you installed the adb/fastboot drivers on your PC?
Sounds like a drivers issue to me.
Try this thread to install the drivers then try communicating with the bootloader again.
https://forum.xda-developers.com/showthread.php?t=2588979
Click to expand...
Click to collapse
Thank you for replying, friend.
I did what you asked me to do i.e. installed adb/fastboot drivers and then ran the command to identify.
But all i get is this. I have attached a screenshot of the message i'm getting in the command prompt.
What do i do?

themember1993 said:
Thank you for replying, friend.
I did what you asked me to do i.e. installed adb/fastboot drivers and then ran the command to identify.
But all i get is this. I have attached a screenshot of the message i'm getting in the command prompt.
What do i do?
Click to expand...
Click to collapse
Still a drivers issue
Try installing HTC Sync Manager from here and try again.
http://www.htc.com/us/support/software/htc-sync-manager.aspx

Gibz97 said:
Still a drivers issue
Try installing HTC Sync Manager from here and try again.
http://www.htc.com/us/support/software/htc-sync-manager.aspx
Click to expand...
Click to collapse
I had installed the htc manager again as per your instructions even though i had it on my pc earlier.
HTC sync manager doesn't detect the phone.
Nor does fastboot command in the command prompt.
i have the adb drivers installed as you asked me to install them earlier.
I get the same message "waiting for phone" in cmd. I rebooted fastboot but even that doesn't change anything.
What do i do now? Is it a hardware issue? I do not think it could be a hardware issue because the phone has never undergone physical damage. it just decided to turn itself off one unfortunate day by itself.
Is there another way? another software?

themember1993 said:
I had installed the htc manager again as per your instructions even though i had it on my pc earlier.
HTC sync manager doesn't detect the phone.
Nor does fastboot command in the command prompt.
i have the adb drivers installed as you asked me to install them earlier.
I get the same message "waiting for phone" in cmd. I rebooted fastboot but even that doesn't change anything.
What do i do now? Is it a hardware issue? I do not think it could be a hardware issue because the phone has never undergone physical damage. it just decided to turn itself off one unfortunate day by itself.
Is there another way? another software?
Click to expand...
Click to collapse
Open device manager.
Connect phone to PC. Does the device manager show a new device added?
And BTW why can't you get into the stock recovery?

Gibz97 said:
Open device manager.
Connect phone to PC. Does the device manager show a new device added?
And BTW why can't you get into the stock recovery?
Click to expand...
Click to collapse
When i select "fastboot mode" in the bootloader screen, the PC makes a connection notification sound.
And the device shows up as "Android 1.0" in Device manager.
I have attached a screenshot which shows the same.
Also, when i try any of the options in the bootloader i.e., factory reset, recovery mode, reboot or power down, the device goes back to the endless bootloop and never really lets me do anything.

themember1993 said:
When i select "fastboot mode" in the bootloader screen, the PC makes a connection notification sound.
And the device shows up as "Android 1.0" in Device manager.
I have attached a screenshot which shows the same.
Also, when i try any of the options in the bootloader i.e., factory reset, recovery mode, reboot or power down, the device goes back to the endless bootloop and never really lets me do anything.
Click to expand...
Click to collapse
Try downloading usb deview from here. Uninstall all the USB drivers, reinstall them then try again
http://downloads.tomsguide.com/USBDeview,0301-13254.html