Database Develop

[Newbie Guide] adb/fastboot/bootloader/android 101

The purpose of this document is to clarify a few basics about HTC Android Phones and basic commands to interface with the phones. Think of this as a beginner's guides to the Android device from a non-traditional user's point of view. I'll keep it simple and plain as much as I can for the new users. I'll also try to keep all the technical aspects true as much as I can while keeping it simple.
Before you go on, please read this and understand the basic concepts and how and why following commands are being used. Do not follow anyone's instructions/tutorials/guides without prior basic understanding of what each command do. I do want to believe it's humans visiting this forum and not lemmings. If you do not understand, feel free to ask here. I will or someone else also knowledgeable will answer your questions. DO NOT QUOTE THIS AS A WHOLE. My pet peeves and a complete waste of screen space.
Sometime, depending on your OS, command names may change (e.g: mouse / mouse.exe / mouse-linux / mouse-mac). For general purpose, we'll use mouse instead of an OS specific commands in this instructions.
So to repeat myself, if you understood the concepts of the commands, and you are on a linux system and someone's guide says touch index.php, you will automatically type touch-linux or whatever the name of your executable is on your system.
​
We shall assume you know how to install needed drivers and where to get android sdk and put the sdk binaries (executables) in the system path. If we need to expend this let me know and I'll expend this here.
Further, if I get any parts wrong, PM me and I'll get those parts corrected.
Android Partition, SPL etc.
Partitions:
Followings are a list of partitions on your android phone.
misc - misc partition -
recovery - Recovery Partition - This is where the original HTC recovery or Amon Ra's recovery or any other Recovery would go. Basically if you reboot into recovery it'll boot from here.
boot - This is your boot partition
system - This is where all your system information (ROM resides)
cache - cache (When you factory reset the phone, this area is wiped)
userdata - user data (like your login, your user settings etc) When you factory reset the phone, this area is wiped)
So, if you replace the recovery image, you are pretty much set for updates provided here at XDA. Note: By replacing your recovery image, you may not be able to have OTA updates.
ROM images will normally replace boot and system images at the same time and often time, userdata and cache too; reseting the phone completely.
SPL/Bootloader/Radio/Bricking Phones:
SPL / Bootloader is like BIOS on a computer. At least I think of it that way. SPL can be updated! SPL comes as either Security-On of Security-Off (S-ON/S-OFF).
Note: It is my understanding that radio will boot first, followed by other systems. So it is IMPORTANT that your radio image/version will work with your SPL image/version. This is the one and only reason for phones being bricked. You can not brick your phone by flashing a ROM or Boot image or recovery image. Once you flash the wrong radio for the SPL, the only known method of recovery is to send the phone back into HTC for repair.
How do I know the phone is bricked? A bricked phone can not boot into bootloader, recovery, or into normal operation modes. You can not connect to a bricked phone via adb or fastboot. You can only see one screen on the phone and it will be the first splash screen.
Commands:
adb - Android Debug Bridge - One of the two things you'll need to know if you ever want to do anything non-conventional on your android based phone.
List of commands that can be used by adb can be prompted by typing adb at the system shell (command prompt or terminal)
Notable adb commands:
adb devices - If you don't know anything, this is the ONE thing you have to know.
adb devices will give you a list of devices connected to the computer. This is also a good way to make sure that your phone is actually connected to the computer.
adb reboot (bootloader|recovery)
adb reboot - this will reboot your phone normally.
adb reboot bootloader - this will reboot your phone back into the bootloader (white screen with the android on wheels)
adb reboot recovery - this will reboot your phone back into recovery console (either default or amon_ra's recovery).
adb shell - this will shell into the phone and you can now explore the phone. Remember phone's native backend os is linux so know your linux commands.
adb remount - remounts the system partition on the phone so you can you read/write to it.
adb push xxx yyy - will push xxx file from computer into yyy location/file on phone (needs rooted access)
adb pull xxx yyy - will pull xxx file from phone into yyy location/file on computer (needs rooted access)
Fastboot is protocol used to update the flash filesystem in Android devices from a host over USB. It allows flashing of unsigned partition images.
Notable fastboot commands:
fastboot devices - If you don't know anything, this is the ONE thing you have to know.
fastboot devices will give you a list of devices connected to the computer. This is also a good way to make sure that your phone is actually connected to the computer.
fastboot reboot - this will reboot your phone normally
fastboot oem unlock - this will unlock your bootloader - NOTE THIS WILL VOID YOUR NEXUS ONE WARRANTY
fastboot erase XXX - Will erase the partition XXX (such as userdata, cache) - mainly used for resetting phone and clearing userdata / factory settings.
fastboot flash XXX YYY - This will flash XXX partitionn with YYY image.
e.g: fastboot flash system system_update.img will flash/update your system partition with an image called system_update
If anyone needs me to dig deep into using anything else, please PM me. I'll add it on here. Hopefully this will help all newbies about the basic commands and what they do.
FAQs (UPDATED Feb 09, 2010)
Q: One question about the Android SDK. Do I need it to flash my N1 or just to program new apps? Where can I get it?
A: Android SDK is not entirely needed to flash the N1. However, there are tools in there that you need. Adb / Fastboot etc. Although they can be downloaded by themselves, the windows version of the SDK also have the Drivers that are needed for android devices for USB connection. So, it is recommended to get it. You can get it from developer.android.com
Q:I have never experienced anything like this when I did a hard-spl on my winmo phone. Radio versions are included with SPL's, right?
A: Official packages from HTC did come with nbh packaging, meaning it is a all in one upgrader that will update Radio, ROM, System etc, it is very much common for active development area here at XDA to get the radio or SPL or ROM separately and independently of one another. And as such, you will most likely flash them seperately (who wants to wait 6-8 months). Also, since this phone is released by google, HTC will most likely not update any major Radios. However, it is very likely that we will be hacking in Radio updates or any other "updates" from HTC from their new device - HTC Bravo.
Q: Is there a guide for snow leopard? I'm kind of stuck.
A: I personally ran android SDK and aforementioned executable on both MAC OS 10.5 and 10.6. Like I posted, the commands and the executable names may be slightly different. I may call adb and you may find it as adb-mac. I am not going to write 3 separate documents for 3 separate OSes. You have to know that adb=adb-mac (on your mac), adb-linux (for linux) etc. And yes the above guide will work universally.
Q: Can i replace the splash image..?? (unlocking related)
A: As of the above date (next to the FAQ) no you can not. Issue is probably a few folds. One of them is that splash1.img is not going in due to security lock. Remember, you unlocked the phone. HTC will not like it. Anyhow, I like the current quad color X. If you are thinking of getting rid of the lock logo, good luck. Even if you can get rid of it, you will still have to overcome the pink text that says ***UNLOCKED*** on your bootloader.
Q: Can you run Windows Mobile on Android Phones?
A: With enough resources given, sure. Will it ever happen? No. Why? Windows mobile compiler and builder cost $. As a matter of fact, as of version 5, it was going to cost me $75 per device. That's one of the reasons why handset makers went to Android open platform. Android is free and universal so as long as you use certain chipsets and certain items, you are good to go. Can it ever be ported? Sure. With right amount of time and money anything can be done. But at this point, it's cheaper for you to go buy a windows mobile smartphone.
Q: How do I know the phone is bricked?
A: You can not brick a phone unless you are flashing Radio/SPL packages. Make sure if you are doing that, you follow directions VERY CAREFULLY. A bricked phone can not boot into bootloader, recovery, or into normal operation modes. You can not connect to a bricked phone via adb or fastboot. You can only see one screen on the phone and it will be the first splash screen.
Q: I have installed the Android SDK however, i cannot seem to get the laptop to detect the nexus. What have i left out?
A: Most common item that people forget to enable is USB Debugging. Settings => Applications => Development => USB debugging [checked]
Q: I have rooted n1. when I go to recovery to do backup, I get the triangle with the little green android guy, but phone is stuck there. I have to remove battery to reboot phone. What have I done wrong?
A: You still have the stock (shipping) recovery. If you want a different recovery (Amon RA's), download it, the from fastboot, run fastboot flash recovery downloaded_recovery.img
Q: Which step of the rooting / recovery procedure does it give root?
A: Root and Recovery are two totally different things. Recovery is a partition that contain recovery information. Stock recovery is what allows OTA updates etc. Normally it will search for update.zip in the root folder of the SD card. Amon_RA's Recovery or any other recovery images are there to enhance the traditional stock recovery. Amon Ra's Recovery for example, contains thing such as ability to update from different zip files, and backup/restore of your data/system.
Rooting is not done by recovery but is a kernel level access (simply put) that will give root or "SU". It is done by patching the boot partition of the your android device.
Q: What are the differences, advantages, disadvantages of the different ROM's?
A: They are all different. Some have some features, some are plain stock, some are made for bleeding edge kernel etc. You'll have to try them out and figure out yourself. I may make a chart of what they are (see the bottom at my signature - wiki) but with too many android devices, I will need some major help. One person alone will not have total knowledge of all the ROM releases. There are just way too many devices and ROMs.
Q: Which ROM will allow OTA updates?
A: Stock ROM WITH Stock Recovery.
Q: If the phone is SIM/carrier unlocked and you root do you have to SIM unlock again?
A: SIM/Carrier unlock has nothing to do with rooting your phone. You can still have root and still be carrier locked. Nexus One comes carrier unlocked from factory.
Q: How much space is there for apps? is using the sd card really necessary? (on Nexus One)
A: Search google? The phone has 512MB or space. That SHOULD be more than enough for you. If not, you have some serious issues. I do not believe you will not App2SD for Nexus One. Google did say during the release conference that they will update Android/N1 so that apps can be run/installed to SD but that requires some system and security changes (mainly to prevent pirated software - Yes if I write something, I deserve to get paid for it).
Q: When you do "flash zip from sdcard" or "fastboot flash image" does this merge and overwrite the files in to the partition?
A: When you update a software (via recovery), software my be merged. However, if you fastboot flash, just like the word flash says, it will flash and overwrite the partition.
Q: Which partition does "flash zip from sdcard" affect?
A: Depends on what you are flashing. It could be any or all of the partitions such as SPL, Boot, System, Recovery, Radio. You should study first before randomly flashing things.

sorry, got it!

blakestimac said:
i apologize if this is the wrong place for this but, but i have adb setup perfectly, but fastboot is not recognized at all. could i have missed something?
Click to expand...
Click to collapse
I need your system info.
What os are you running? where did you get fastboot? what are you trying to do?

Don't forget fastboot boot for testing images. My most used command

I still have no idea how to use or setup adb i have downloaded the sdk and used fastboot and superboot to root my phone and am currently running the cm 5.0 beta 2 rom and want to learn how to use adb so i can enable the ram. Thanks, Joe

really a noob question here.....it wa easier with Hero.
i have installed the Android SDK
however, i cannot seem to get the laptop to detect the nexus.
what have i left out?

wishmaker738 said:
really a noob question here.....it wa easier with Hero.
i have installed the Android SDK
however, i cannot seem to get the laptop to detect the nexus.
what have i left out?
Click to expand...
Click to collapse
Check the FAQ.

dylanfan424 said:
I still have no idea how to use or setup adb i have downloaded the sdk and used fastboot and superboot to root my phone and am currently running the cm 5.0 beta 2 rom and want to learn how to use adb so i can enable the ram. Thanks, Joe
Click to expand...
Click to collapse
Ok. I need to know what you actually did. I am not understanding what you are trying to do.

Can't run adb commands - device not found
Thanks for the info. I am having an issue with running adb commands. My phone is rooted via superboot and I tested it with Nexus Torch which works. Now I am trying to install the new kernel so I can run the wireless tether app... but I can't get any of the adb commands to recognize the phone. I boot the phone by holding the trackball and power button. I am in USB debugging mode. When I run fastboot devices, the phone serial number shows up. When I run adb devices, it says no device detected. And when I try to run any other adb commands they do not work, even though fastboot commands work. Any ideas? Thanks.

Sorry i was pretty vague before i down loaded the sdk and also installed the adb setup file included with the superboot pack but just have no idea how to get it to work and add things through adb. I tried typing adb commands into comand line with the phone connected to the computer but nothing happend. just said not recognised command so i just basically need a rundown of how to setup adb.

dylanfan424 said:
Sorry i was pretty vague before i down loaded the sdk and also installed the adb setup file included with the superboot pack but just have no idea how to get it to work and add things through adb. I tried typing adb commands into comand line with the phone connected to the computer but nothing happend. just said not recognised command so i just basically need a rundown of how to setup adb.
Click to expand...
Click to collapse
I'm a noob so can't offer much help...but I would make sure the usb drivers are installed if you're using windows....this probably should have happened when you installed the sdk, but you can also install it through the device manager and point it to the folder where the usb drivers are located. Also make sure the phone is in USB debugging mode. also you may need to reboot your pc. Make sure you have setup running when you run the adb commands. you need to be in the same directory as the adb file, or in the case of the superboot pack you need to type "adb-windows" not just "adb". you may also need to put .exe, ie adb-windows.exe.

pwnvds said:
Thanks for the info. I am having an issue with running adb commands. My phone is rooted via superboot and I tested it with Nexus Torch which works. Now I am trying to install the new kernel so I can run the wireless tether app... but I can't get any of the adb commands to recognize the phone. I boot the phone by holding the trackball and power button. I am in USB debugging mode. When I run fastboot devices, the phone serial number shows up. When I run adb devices, it says no device detected. And when I try to run any other adb commands they do not work, even though fastboot commands work. Any ideas? Thanks.
Click to expand...
Click to collapse
You run fastboot from the white screen. Android on non-white screen. It's one or the other. It's ADB or Fastboot (depending on the mode of the phone).

dylanfan424 said:
Sorry i was pretty vague before i down loaded the sdk and also installed the adb setup file included with the superboot pack but just have no idea how to get it to work and add things through adb. I tried typing adb commands into comand line with the phone connected to the computer but nothing happend. just said not recognised command so i just basically need a rundown of how to setup adb.
Click to expand...
Click to collapse
Is the directory where ADB/fastboot (SDK) is installled in your system path?
I am guessing it's not. If it was, just by typing adb alone (without commands), it'll give you a list of commands. Click here if you want to know how to change your system path to include a particular folder.
We're now in the age of nintendo pilots and point and click OS that no one knows how to use command lines and system paths anymore.

recovery
I have rooted n1. when I go to recovery to do backup, I get the triangle with the little green android guy, but phone is stuck there. I have to remove battery to reboot phone. What have I done wrong?

umplarry said:
I have rooted n1. when I go to recovery to do backup, I get the triangle with the little green android guy, but phone is stuck there. I have to remove battery to reboot phone. What have I done wrong?
Click to expand...
Click to collapse
Answered in FAQ area.

seraph1024 said:
Answered in FAQ area.
Click to expand...
Click to collapse
I tried that before I posted. I searched the FAQ again. Maybe I am a complete DA, but still can't find answer. I don't mind searching, it will help me to learn, but could you point me in the right direction in FAQ?

umplarry said:
I tried that before I posted. I searched the FAQ again. Maybe I am a complete DA, but still can't find answer. I don't mind searching, it will help me to learn, but could you point me in the right direction in FAQ?
Click to expand...
Click to collapse
Q: I have rooted n1. when I go to recovery to do backup, I get the triangle with the little green android guy, but phone is stuck there. I have to remove battery to reboot phone. What have I done wrong?
A: You still have the stock (shipping) recovery. If you want a different recovery (Amon RA's), download it, the from fastboot, run fastboot flash recovery downloaded_recovery.img
Click to expand...
Click to collapse
There you go.

seraph1024 said:
There you go.
[/B]
Click to expand...
Click to collapse
Thanks for your help

seraph1024 said:
There you go.
[/B]
Click to expand...
Click to collapse
I had it downloaded, just had not flashed it

I've been looking all over, but I probably need to check the HTC Dream forum or something.
How do I install a custom ROM? I know you have to adb push update.zip somewhere, but I can't find any info about this. Please help.

ADB/Fastboot problems with Open Beta 5 (7.1.1)

I have had a very eventful few hours and I'll do my best to explain. Earlier this morning I was rooted, twrp installed and running FreedomOS. I had this bright idea of flashing a file I had downloaded from the OP3T website. It was a firmware file (either the first option, the option before OB5). Everything was running smoothly until I got home and tried using fastboot at which point it just sticks on waiting for device. All normal options are checked (adb files installed, debugging selected, the works), but now I can not use fastboot what so ever. I did at one point sideload an OTA using adb sideload (filename.zip). I have tried just about every adb option I can think of to include: 15 second ADB and minimal adb and fastboot. I even deleted the OP3T drivers from my computer, reinstalled those drivers. I followed an article through technobuzz: http://www.technobuzz.net/download-oneplus-3-usb-drivers/
http://www.technobuzz.net/setup-adb-fastboot-drivers-for-nexus-oneplus-samsung-or-any-android/
I have been using adb and fastboot with no issues up til Open Beta 5 and now my PC and another PC is giving me crap and it's iritating the %%%k out of me.
adb reboot recovery works, adb devices work - showing that the device is connected. I checked the device manager and only found the portable devices. It's like my computer somehow magically deleted the adb driver and will not allow me to install an adb driver. I have no logs to check out....15 second adb was suppose to place a log file on the desktop, but it doesnt....it wont install
Here's what Im on:
OB5 (7.1.1) with stock recovery. I can not use fastboot commands. Here are some pics
http://imgur.com/a/y7iFE
http://imgur.com/a/SVVMg You should see something that says, "Android Device or ADB", but nothing - just MTP
http://imgur.com/a/62msw
I'm using windows 10, device signature is off
Essentially I just want to be able to fastboot flash TWRP and gain root.
Has anyone else experienced any kind of issues with OB5 and adb/fastboot
Btw I had the entire Android SDK installed on another computer and that did not work either....Any assistance would be greatly appreciated. I'm talking about you @redpoint73, lol

Oh boy, I've been summoned! I have to say, I'm not anywhere near knowledgeable yet with the 3T as I was with my past devices. But I'll try.
I assume you are properly trying fastboot commands while in fastboot mode (not in OS or recovery)? I assume so, since you already said it worked fine before the update. But it never hurts to ask the obvious, as a lot of folks forget that adb and fastboot work a bit differently (fastboot only in fastboot mode, adb only in OS or recovery - debugging only needed for adb, not fastboot).
Do you have the OP3T drivers installed? These are the files that Windows always opens whenever I connect the phone (while booted into phone OS), select File Transfer, and it gives the option to open the folder. Although I don't think you even need the drivers for fastboot to work. I unlocked the bootloader and flashed TWRP before I ever installed the OnePlus drivers. The generic fastboot drivers worked fine. But it's worth a try, to install the OP drivers.

I don't even know where to begin or how to reply to what you just said @redpoint73. I haven't attempted to use adb/fastboot commands since yesterday, so i have no idea as to rather it will work or not. If you have teamviewer, I can give your access to a backdoor to show you as it's easier to show then explain. Have you ever noticed when you download a zip from here: http://downloads.oneplus.net/devices/oneplus-3t/#title-section
it never saves the file as Open Beta 3, 4, or etc. It saves the file as this long-named file.zip rather than being something easy to understand. Im able to understand it now, but a few moments ago I wasnt. I "have" downloaded the OP3T drivers on multiple occasions with no success to to fastboot only adb. My computer recognizes the device though. When I go into device manager checking things out. I will have an option that says, "portable devices". when you select that option you'll go across through some contextual menus where you wind up seeing MTP. You should see MTP if you successfully installed the OP3T devices, but at the same time you should be able to see an option that says something along the lines of ADB or Android Debug Bridge, vice versa. My computer does not say that and I have no idea where to go from here. I have no logs or anything helping me out, so it's like finding a needle in the haystack. I do know that I have all of the prereq's such as debugging selected from developers options within the phone, device signature turned off through Windows, adb/fastboot installed, OP3T drivers installed - you know the works you usually need in order to get everything working right. What I might end up doing is just reformatting my entire laptop, installing a fresh copy of windows, fresh copy of adb/fastboot and going from there. My bootloader is unlocked and has been since I've owned the device. As of right now I'm on OB5 with stock recovery. Yesterday I tried three times to sideload one of the downloads from this site: http://downloads.oneplus.net/devices/oneplus-3t/#title-section
. However, my phone would end up saying, "installation failed" when Im in sideload mode. I'm thinking that might have something to do with a botched download from the OP3T server.

Looks like you found your solution here: https://forum.xda-developers.com/showpost.php?p=72046709&postcount=20
Fastboot/adb is usually as simple as reinstalling drivers, etc. as opposed to reformat the PC as you were considering. Reinstalling adb/fastboot was a good idea also, as I don't think I would have thought of that (although it makes perfect sense). So good job working it out!

OnePlus3t bricked can only boot into fastboot, however my ADB driver no longer works

I have ran into a bit of an odd problem due to me messing up a root and then messing my phone up even more while trying to fix it.
my phone is fully bricked and only boots into fastboot mode. i tried to fix it with the one-plus fixer (idk its official name) but i got an error 7. I now need to re flash an older version of TWRP and try a diffrent method but i cant as my phone no longer is recognized in fastboot using the ADB tool. I have the USB driver installed on Windows. On Linux i ran the .sh script as root and it still doesn't work.
I have both Ubuntu and Windows installed on my PC so i can do whatever you suggest me to do regardless of the os.
Thank you to anyone that can help in advanced
Malte

This is not a hardbrick; a hard one wouldn't boot at all and give no sign of life (except when plugged to PC).
Try an unbrick tool to revert to official OOS. On Windows 7+ remember to disable signed driver enforcement.

You mention fastboot and adb. Which one are you using?
Just to make sure: While in the bootloader (fastboot mode), adb does not work. You have to use the fastboot commands. Installing TWRP would be:
Code:
fastboot flash recovery <name-of-img-file>
If that's what you're already trying, just ignore this post.

I want to be able to do that but if i do adb devices it no longer finds my phone
Didgeridoohan said:
You mention fastboot and adb. Which one are you using?
Just to make sure: While in the bootloader (fastboot mode), adb does not work. You have to use the fastboot commands. Installing TWRP would be:
Code:
fastboot flash recovery <name-of-img-file>
If that's what you're already trying, just ignore this post.
Click to expand...
Click to collapse
I want to be able to do that but if i do "adb devices" in the cmd/terminal it no longer finds my phone. so my goal is to be able to execute that command. However, i may be mistaken that it doesnt need to find my phone i can just execute that command

Ive done this but it didnt fix my phone.
przemcio510 said:
This is not a hardbrick; a hard one wouldn't boot at all and give no sign of life (except when plugged to PC).
Try an unbrick tool to revert to official OOS. On Windows 7+ remember to disable signed driver enforcement.
Click to expand...
Click to collapse
I did this last night but it never fixed my phone. it boots and then says "md5 checksum error" so im needing to try a diffrent approach but i cant because i cant flash anything onto it due to adb not finding my device now

Bandella said:
I want to be able to do that but if i do "adb devices" in the cmd/terminal it no longer finds my phone. so my goal is to be able to execute that command. However, i may be mistaken that it doesnt need to find my phone i can just execute that command
Click to expand...
Click to collapse
Like I said, the adb commands won't work while in the booloader (that's why it's called fastboot mode). You need to use fastboot commands... The equivalent command would be:
Code:
fastboot devices

Bandella said:
I did this last night but it never fixed my phone. it boots and then says "md5 checksum error" so im needing to try a diffrent approach but i cant because i cant flash anything onto it due to adb not finding my device now
Click to expand...
Click to collapse
I had the same issues with md5, all you have to do is try a different USB port. I suggest the ones on your motherboard if you're on a PC. Then run the tool as administrator. I hope this helps, good luck!
P.S if it still doesn't work, try a different PC, I'm 100% sure it'll work

Bandella said:
I want to be able to do that but if i do "adb devices" in the cmd/terminal it no longer finds my phone. so my goal is to be able to execute that command. However, i may be mistaken that it doesnt need to find my phone i can just execute that command
Click to expand...
Click to collapse
As Didgeridoohan touched upon, adb and fastboot (while related) are different. They have different requirements and applications.
adb won't work while the device is in fastboot mode. Conversely, when the device is able to use adb, fastboot commands won't work.
adb: only works booted to OS or alternately in TWRP. Debugging must be enabled
fastboot: only works in bootloader-fastboot mode. Debugging is not required to be enabled.
For flashing TWRP, it's fastboot that you need. Well, there is a way to do it with adb, but fastboot is by far the more common way.
When in fastboot mode, adb command won't work, and there fore it is completely expected that "adb devices" yields not response. Try "fastboot devices" (no quotes) and if you get the phone's ID in response, you are in business.

Bandella said:
...
my phone ... only boots into fastboot mode...
Click to expand...
Click to collapse
I've had this happen to me when I've triggered dm-verity. Instead of getting the dm-verity warning display the phone would simply boot straight back to fastboot.
My solution was to:
- flash the latest TWRP using
Code:
fastboot flash recovery <recovery file. img>
- reboot into recovery (use the volume keys on the phone to select recovery and then press the power key)
-flash the full stock image I was using before the problem started
This would clean up any changes made to the boot and system images and allow me to boot the system normally.
Note: because this leaves you with a stock kernel you'll end up with the stock recovery after you boot the system.
Sent from my OnePlus3T using XDA Labs

boot your PC into Ubuntu and install adb/fastboot (tons of guides available off the 'net). then boot your 3t to dl mode and connect it to your PC. as mentioned already "fastboot devices" should list your 3t and you should now be able to flash to your heart's content. no need for drivers, unlike under Windows. i have a bootable linux usb drive primarily for this reason. curious what script you're trying to run though..

No OS on phone! OTG USB / conncetion to PC not recgonized! Seeking Help

In the past 3 months or so I noticed that my Mi5 3GB 32GB is not recognized by my PC anymore. I didn't care too much because I hardly connect my phone to PC.
I was running the lastest xiaomi.eu Rom unrooted.
So on Thursday, I deleted my OS by mistake, therefore I do not get past the Mi Logo.
I can boot into TWRP Recovery & Fastboot however, there is not code when using CMD adb/fastboot devices such as 1cwe3f23.
Also, I read about the EOL method aka test point method, to force a connection as Qualcomm driver with no success. Different PCS dont recognize any drivers.
The battery is not an issue because I can easily charge my phone to 100% and it can hold its charge, therefore I do not think it is a battery related issue.
What i did so far :
- used 3 differenct USB C cables and PC -> phone still not recognized
- Installed all lastest driver on Drivers -> phone still not recognized
- tried to use the test points method -> phone still not recognized
- tried Miflash tool -> phone is still not recognized
- tried Mi PC Guide -> didn't work either
Then I read somewhere that I can use a OTG cable with a pen drive
- OTG storage is not recognized in TWRP recovery and cannot be selected. [OTG STORAGE 0MB even if different pen drives are connected]
SO my Main problem is not the phone itself, it is that I cannot get any data onto the internal memory because I can't get past TWRP.
Please help me out since I really struggling with this problem for the past 7 days and I'm desperate now for any kind of help.
Greetings and thanks in advance.

amando1991 said:
SO my Main problem is not the phone itself, it is that I cannot get any data onto the internal memory because I can't get past TWRP.
Click to expand...
Click to collapse
What do you mean by "can't get past TWRP"? Is it that you can't flash any ROM to system?
You have fastboot and TWRP, so things are likely fine. Rather than use Windows, you might have more luck running linux inside VirtualBox (plenty of guides around XDA). If you can sudo fastboot devices in linux, you should be good to go. Otherwise, the error reporting is often richer/simpler in linux.

Hi bro
same as me, 4 days ago...
system, vendor error
flashing stock rom miui9 via twrp
although the error twrap will only provoke usb computer,
if it works usb computer, try flashing by using miflash...
goodluck
Sory bad englis

moo113 said:
What do you mean by "can't get past TWRP"? Is it that you can't flash any ROM to system?
You have fastboot and TWRP, so things are likely fine. Rather than use Windows, you might have more luck running linux inside VirtualBox (plenty of guides around XDA). If you can sudo fastboot devices in linux, you should be good to go. Otherwise, the error reporting is often richer/simpler in linux.
Click to expand...
Click to collapse
I did as you recommended and used Ubuntu. However also there the system didn't recognize the phone when plugged. It may because I am not fully familiar with Ubuntu. I would appreciate if you could point me in the direction of a tutorial.
same as me, 4 days ago...
system, vendor error
flashing stock rom miui9 via twrp
although the error twrap will only provoke usb computer,
if it works usb computer, try flashing by using miflash...
Click to expand...
Click to collapse
could you be more precise please? How did you overcome not having a PC conncetion?
Currently, I am not able to transfer any kind of data to the phone either by PC or OTG. Furthermore, the internal storage is completely empty after wiping everything by mistake.
I have twrp working fine, but without any data on the device, I cannot use it. Also, the device only stays in fastboot for roughly 20 secs before it turns off.
any help is welcomed. Thank you
EDIT : I got Ubuntu to work but its the same process. My phone is not recognized and running the command adb devices gives me
"list of devices" .... thats not! Nothing ! usally there is the code Phones ID but nothing there

amando1991 said:
EDIT : I got Ubuntu to work but its the same process. My phone is not recognized and running the command adb devices gives me
"list of devices" .... thats not! Nothing ! usally there is the code Phones ID but nothing there
Click to expand...
Click to collapse
A number of different issues could be here.
#1 Firstly, ensure you've installed openvm tools and reboot. This should enable things like hardware pass through.
$ apt-get install open-vm-tools open-vm-tools-desktop
$ sudo init 6
Then, follow these instructions for the pass through (may be slightly different, but very similar) https://forum.xda-developers.com/showthread.php?t=570452
#2 Type "adb" and see what version is in use in the first line of output. If it's 1.0.0.32 or older, it might be an issue. Try installing the following packages:
$ sudo apt-get install android-tools-fastboot android-tools-adb
You might need to find a newer version elsewhere, Ubuntu repos are often old. Google around for 1.0.36 or newer. This could solve your issue.
#3 Ensure you have the necessary rules for the Mi 5. There's a few different hardware models. The Arch Wiki can walk you through it better than I can: https://wiki.archlinux.org/index.php/android#Connect_device (ignore the package hyperlinks, they're arch-specific). Only do this if you've properly configured the pass through from #1. Do F"igure out device IDs" and then "Adding udev Rules". Instead of the "udevadm" command run
$ sudo service udev restart
If you're still not detected, no idea.

moo113 said:
A number of different issues could be here.
#1 Firstly, ensure you've installed openvm tools and reboot. This should enable things like hardware pass through.
$ apt-get install open-vm-tools open-vm-tools-desktop
$ sudo init 6
Then, follow these instructions for the pass through (may be slightly different, but very similar) https://forum.xda-developers.com/showthread.php?t=570452
#2 Type "adb" and see what version is in use in the first line of output. If it's 1.0.0.32 or older, it might be an issue. Try installing the following packages:
$ sudo apt-get install android-tools-fastboot android-tools-adb
You might need to find a newer version elsewhere, Ubuntu repos are often old. Google around for 1.0.36 or newer. This could solve your issue.
#3 Ensure you have the necessary rules for the Mi 5. There's a few different hardware models. The Arch Wiki can walk you through it better than I can: https://wiki.archlinux.org/index.php/android#Connect_device (ignore the package hyperlinks, they're arch-specific). Only do this if you've properly configured the pass through from #1. Do F"igure out device IDs" and then "Adding udev Rules". Instead of the "udevadm" command run
$ sudo service udev restart
If you're still not detected, no idea.
Click to expand...
Click to collapse
Thank you again for the help!
Unfortunately, it appears that my device is still not recognized by either Ubuntu or Win10.
I Have taken the necessary steps to install Ubuntu and update the adb drivers (1.0.39) but still no luck so far.
It really pisses me off since I was stupid enough to wipe the internal storage ☹ and not I am not able to transfer any data to the devices again.
Any other out of the box ideas?

amando1991 said:
Thank you again for the help!
Unfortunately, it appears that my device is still not recognized by either Ubuntu or Win10.
I Have taken the necessary steps to install Ubuntu and update the adb drivers (1.0.39) but still no luck so far.
It really pisses me off since I was stupid enough to wipe the internal storage ☹ and not I am not able to transfer any data to the devices again.
Any other out of the box ideas?
Click to expand...
Click to collapse
You configured the USB pass through to your Ubuntu host? Double check you followed #3, and then run sudo fastboot devices. That step is tricky for some.
Reconnect your phone to your Ubuntu host (in fastboot) and run "dmesg -T", see what errors are present. If you have no errors, I would image it's a configuration issue. Other than that I'm out of ideas.

moo113 said:
You configured the USB pass through to your Ubuntu host? Double check you followed #3, and then run sudo fastboot devices. That step is tricky for some.
Reconnect your phone to your Ubuntu host (in fastboot) and run "dmesg -T", see what errors are present. If you have no errors, I would image it's a configuration issue. Other than that I'm out of ideas.
Click to expand...
Click to collapse
OMFG!!! First of all, thank you for support and your patience. I really appreciate it.
HOWEVER, all it was is that the USB PORT was full of dust( literally tons!) which appears to have allowed to charge the phone but seemed to have cloaked up some part of the responsibile for a usb connection to a computer.
Stupid me should have known this because the usb port was kinda wobbly which I had mistaken for degradation using the phone for almost 2 years
MANY THANKS!

moo113 said:
What do you mean by "can't get past TWRP"? Is it that you can't flash any ROM to system?
You have fastboot and TWRP, so things are likely fine. Rather than use Windows, you might have more luck running linux inside VirtualBox (plenty of guides around XDA). If you can sudo fastboot devices in linux, you should be good to go. Otherwise, the error reporting is often richer/simpler in linux.
Click to expand...
Click to collapse
Hey , I was researching about my issue and came up to this. I'd be really glad if you can sort me out with this. I have the same mobile , by mistakenly wiped out the phone including the internal storage , my pc does not detect the device , and whenever i go to fastboot mode to try something like miflash , it goes back to twrp after 15 seconds. Also , i tried several OTG's but none of them get detected on TWRP , and I am stuck on this thing for almost a week now . Please guide me on how to sort this out . i basically just downloaded adb files , miflash , etc from the internet and never reinstalled them. also i used several usb c cables to connect to pc and even then device manager does not detect it . thank you . i would really appreciate your reply.

Windows 10 Razer phone 2 driver problem.

Hello everybody I was able to unlock the bootloader but when I put the phone in bootloader mode it doesn't even see the phone on the computer I've tried going to platform tools and command prompt and did ADB devices and it won't see it. it won't even see it in fastboot. I've tried the driver installation guide but it doesn't work. Can someone please help me? I am running Windows 10 64-bit on a Acer nitro 5

raver445 said:
Hello everybody I was able to unlock the bootloader but when I put the phone in bootloader mode it doesn't even see the phone on the computer I've tried going to platform tools and command prompt and did ADB devices and it won't see it. it won't even see it in fastboot. I've tried the driver installation guide but it doesn't work. Can someone please help me? I am running Windows 10 64-bit on a Acer nitro 5
Click to expand...
Click to collapse
I had this issue myself when I tried unlocking. It seems when you type fastboot, CMD keeps using an older version. You will need to directly call /fastboot.exe, wherever the full path is, and have your Razer in bootloader mode (it took me an hour to figure out I already had it in bootloader mode), and hopefully it will find it.
TLDR: Make sure adb and fastboot are being executed from their actual paths and that they are the latest.
Also USB debugging is on? Did you check the notifications?

Yes usb debug mode is on...

Johnjobs13 said:
I had this issue myself when I tried unlocking. It seems when you type fastboot, CMD keeps using an older version. You will need to directly call /fastboot.exe, wherever the full path is, and have your Razer in bootloader mode (it took me an hour to figure out I already had it in bootloader mode), and hopefully it will find it.
TLDR: Make sure adb and fastboot are being executed from their actual paths and that they are the latest.
Also USB debugging is on? Did you check the notifications?
Click to expand...
Click to collapse
I have even tried updating the drivers and it keeps saying it can't update it even if I use the manual update settings

Johnjobs13 said:
I had this issue myself when I tried unlocking. It seems when you type fastboot, CMD keeps using an older version. You will need to directly call /fastboot.exe, wherever the full path is, and have your Razer in bootloader mode (it took me an hour to figure out I already had it in bootloader mode), and hopefully it will find it.
TLDR: Make sure adb and fastboot are being executed from their actual paths and that they are the latest.
Also USB debugging is on? Did you check the notifications?
Click to expand...
Click to collapse
How can I get the drivers installed then? It's driving me crazy.

raver445 said:
How can I get the drivers installed then? It's driving me crazy.
Click to expand...
Click to collapse
I vaguely recall having the same issue, and fixed it by going into the Device Manager and installing a different driver for the phone. I can't remember exactly which one it was (I want to say it said something about fastboot). This was after booting into fastboot of course, since Windows uses a different driver for when it's in fastboot vs when it's booted normally.

Heres what I did:
1) Download https://dl-ssl.google.com/android/repository/latest_usb_driver_windows.zip
2) Extract to a folder in your desktop.
3) Go into the folder and look for android_winusb.inf
4) Right click it and choose install.
5) Press the windows button and X at the same time and choose device manager.
6) Plug the phone in and find the device in the device manager. It could be in a couple different device trees, so you'll have to find it.
7) Right click and choose update driver. Choose browse, then browse again, and find the folder on your desktop with the drivers. choose that same .inf file from earlier.
8) You'll have 3 different options. I've always had success with the ADB Composite driver.

th3cavalry said:
Heres what I did:
1) Download https://dl-ssl.google.com/android/repository/latest_usb_driver_windows.zip
2) Extract to a folder in your desktop.
3) Go into the folder and look for android_winusb.inf
4) Right click it and choose install.
5) Press the windows button and X at the same time and choose device manager.
6) Plug the phone in and find the device in the device manager. It could be in a couple different device trees, so you'll have to find it.
7) Right click and choose update driver. Choose browse, then browse again, and find the folder on your desktop with the drivers. choose that same .inf file from earlier.
8) You'll have 3 different options. I've always had success with the ADB Composite driver.
Click to expand...
Click to collapse
I have just rebooted my computer I'll see how it works in just a moment but I don't know if it's going to see it or not. it is still not seeing it.

Gamesoul Master said:
I vaguely recall having the same issue, and fixed it by going into the Device Manager and installing a different driver for the phone. I can't remember exactly which one it was (I want to say it said something about fastboot). This was after booting into fastboot of course, since Windows uses a different driver for when it's in fastboot vs when it's booted normally.
Click to expand...
Click to collapse
So what can I do to fix this? It's driving me insane.

raver445 said:
So what can I do to fix this? It's driving me insane.
Click to expand...
Click to collapse
im having the exact same issue doing what everyone says and nothing i need to lock my bootloader to send back to razer for warranty im pulling my hair out
---------- Post added at 11:18 PM ---------- Previous post was at 11:14 PM ----------
unless this is correct the phone comes up as samsung android phone and under the tab is android adb interface?

celphtitled885 said:
im having the exact same issue doing what everyone says and nothing i need to lock my bootloader to send back to razer for warranty im pulling my hair out
---------- Post added at 11:18 PM ---------- Previous post was at 11:14 PM ----------
unless this is correct the phone comes up as samsung android phone and under the tab is android adb interface?
Click to expand...
Click to collapse
After I update it the software drivers for the computer it says Razer phone 2 but it doesn't work right. I tried doing one of those scripts to reflash to stock software and it doesn't do Jack squat it sits there waiting for device.

use samsungs usb driver installer and change adb driver to Samsung's version in device manager. should see fastboot device now .

celphtitled885 said:
im having the exact same issue doing what everyone says and nothing i need to lock my bootloader to send back to razer for warranty im pulling my hair out
---------- Post added at 11:18 PM ---------- Previous post was at 11:14 PM ----------
unless this is correct the phone comes up as samsung android phone and under the tab is android adb interface?
Click to expand...
Click to collapse
i got it to work for the fastboot devices ...but still unable to relock it

has anyone figured this out yet im havin the exact same problem i go into bootloader and it shows android with caution sysmlo in device manager will no find device in fastboot mode period

ghost9640 said:
has anyone figured this out yet im havin the exact same problem i go into bootloader and it shows android with caution sysmlo in device manager will no find device in fastboot mode period
Click to expand...
Click to collapse
Copied from another thread.....
This is the biggest problem most people have if you don't do this part here below.
https://s3.amazonaws.com/cheryl-fact...on_Windows.pdf
You can use this tool as well to setup adb and fastboot with the correct cord it works well ?
https://forum.xda-developers.com/and...ndows-t3999445

got it
JDBarlow said:
Copied from another thread.....
This is the biggest problem most people have if you don't do this part here below.
https://s3.amazonaws.com/cheryl-fact...on_Windows.pdf
You can use this tool as well to setup adb and fastboot with the correct cord it works well
https://forum.xda-developers.com/and...ndows-t3999445
Click to expand...
Click to collapse
my laptop was not seeing the device my pc is, now im trying to flash arter97 kinda stuck but thx bud

The CPU AMD and windows 10 has an issues with fasboot driver everytime that you put command in fastboot the screen changes and starts displaying following message "Press any key to shutdown" waiting for devices or stuck on fastboot "sending system ...123,456kb. No need to find any cable to fix this just install windows 7 and flashing step by step then the problem will be solved

decode2533 said:
The CPU AMD and windows 10 has an issues with fasboot driver everytime that you put command in fastboot the screen changes and starts displaying following message "Press any key to shutdown" waiting for devices or stuck on fastboot "sending system ...123,456kb. No need to find any cable to fix this just install windows 7 and flashing step by step then the problem will be solved
Click to expand...
Click to collapse
Lol okay..that's about as random as "hey anybody reading this thinking about getting an S20 Ultra or one of the others"
I am....

I had the same problem. I never could get it to work in Windows. Luckily, however, I have an Ubuntu dual boot on my system, so I installed ADB & Fastboot on linux, put the phone in download mode, plugged it in, and it showed up without issue. This won't help for everybody, but if you have a linux machine, or a you can install a dual boot, it'll get you where you need to be. And it's a lot easier than Windows. You might be able to do a USB pass through, to a VM, but I haven't tested it. It could be worth a shot, if you don't have any other options.

Hi All,
Thought I would post this on here for you all, might help someone else like it did me.
What ImperialMe said is correct and I was able to do both my Razor 1 and 2 using it.
imperialme said:
I had the same problem. I never could get it to work in Windows. Luckily, however, I have an Ubuntu dual boot on my system, so I installed ADB & Fastboot on linux, put the phone in download mode, plugged it in, and it showed up without issue. This won't help for everybody, but if you have a linux machine, or a you can install a dual boot, it'll get you where you need to be. And it's a lot easier than Windows. You might be able to do a USB pass through, to a VM, but I haven't tested it. It could be worth a shot, if you don't have any other options.
Click to expand...
Click to collapse
The easy method is to download the Ubuntu Image for Windows (ubuntu.com/download/desktop)
Once you have it, burn it to USB using Rufus (rufus.ie)
Boot into the USB on your PC and when prompted just run as is, no need to install.
Once running, open a terminal window and with internet access and run the following:
Code:
sudo add-apt-repository universe && sudo apt-get update
Now run:
Code:
sudo apt-get install android-tools-adb android-tools-fastboot
When promoted press Y and enter
Now run:
Code:
sudo adb start-server
Connect your phone, turned on and on the home screen for example. Run the following
Code:
sudo adb devices
You should see your device listed as unauthorised and get a prompt for ADB access on the mobile phone.
run it again to confirm its authorised and then enter:
Code:
adb reboot bootloader
Once rebooted, use the menu to select boot into fastboot on the phone
Now back to the terminal window, enter:
Code:
Fastboot devices
You should now see your device listed and commands should work as expected.
If you need to copy anything over to the temporary USB OS then use another USB drive and copy them to it before you boot the OS.
I tried this in a VM and VMWare and HyperV both failed as the drivers they use are still Windows based and failed. Only a full OS worked.
Hope this helps someone else!